Abstract 4529: Self-assembled lipid-polymer hybrid nanoparticles for the sustained delivery of siRNA and the treatment of drug-resistant cancers.

RNA interference has the potential to specifically knock down the expression of target genes, and thereby transform cancer therapy. However, lack of effective delivery of small inhibitory RNA (siRNA) has dramatically limited its in vivo applications. We have developed a multistage vector (MSV) system, composed of discoidal porous silicon particles loaded with siRNA oligos packaged in dioleoyl phosphatidylcholine (DOPC) nanoliposomes, that directs effective delivery and sustained release of siRNA in tumor tissues. Tumor accumulation of siRNA was observed after i.v. administration of MSV/siRNA, and sustained release of siRNA from DMSV maintained high levels of siRNA in tumor for over one week after a single dose of DMSV/siRNA. Treatment of SKOV3ip2 tumor mice with DMSV carrying siRNA oligos specific for the human EphA2 gene (MSV/EphA2) biweekly for 6 weeks resulted in dose-dependent (5, 10 and 15 μg/mice) reduction of tumor weight (36%, 64%, and 83%) and number of tumor nodules compared with the control groups. In addition, tumor growth was completely inhibited when mice were treated with MSV/EphA2 in combination with paclitaxel. Furthermore, combination treatment with MSV/EphA2 and docetaxel inhibited growth of HeyA8-MDR tumors, which were otherwise resistant to docetaxel treatment. Taken together, MSV/EphA2 merits further development as a therapeutic approach for ovarian cancer. Citation Format: Cristian Rodriguez-Aguayo, Haifa Shen, Vianey Gonzalez-Villasana, Guodong Zhang, Xiaoyong Deng, Burcu Aslan, Xuewu Liu, Jason Sakamoto, Arturo Chavez-Reyes, Hee-Dong Han, Anil K. Sood, Mauro Ferrari1, Gabriel Lopez-Berestein. Enhancing chemotherapy response with sustained EphA2 silencing using multistage vector delivery . [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 3269. doi:10.1158/1538-7445.AM2013-3269

The AACR Journals: Advancing Progress Toward the AACR's 115-Year Mission.

The American Association for Cancer Research (AACR) is the first and largest cancer research organization dedicated to accelerating the conquest of cancer. The stated purpose of the organization when it was founded 115 years ago was “to further the investigation and spread the knowledge of cancer.” Since that time, the AACR has been the driving force to eradicate cancer. Publication of research findings has always been critical to this endeavor, with the 11 founders recognizing the importance of “sharing observations” and the need for a journal to “collect under one cover such contributions as bear in any way upon the general problems of oncology.”The AACR launched its first peer-reviewed scientific journal, The Journal of Cancer Research, in 1916. At the time, it was the only English-language cancer journal in the world. Since then, the AACR portfolio of journals has grown to 10. These journals cover the full spectrum of cancer science and medicine and together, over the years, have published over 100,000 articles and over 130,000 meeting abstracts. This is an immense contribution to the body of knowledge on cancer and has ignited communication among cancer scientists and physicians, helping to catalyze a revolution in the field.We are honored to serve as the current Editors-in-Chief of the AACR journals. Each of the 10 journals was launched by the AACR to meet the scientific information needs of its membership and all those engaged in cancer research. Under our leadership, the journals engage closely and collaboratively with the community to facilitate the presentation and wide dissemination of research findings. Importantly, the AACR is a not-for-profit publisher. This means that any surplus from the AACR journals program is used to help support the cancer research community and the mission of the AACR to prevent and cure all cancers by contributing to funding for AACR grants, scientific conferences, and science policy and advocacy efforts. Here, we highlight the unique roles of our journals within the family of AACR journals and how they serve to advance the mission of the AACR.At the inception of the AACR, there was a clear need for journals focused on cancer research to assemble key studies to help guide the field. Cancer Research was launched in 1941 as the flagship journal of the AACR from a rich ancestry that started with its predecessors: The Journal of Cancer Research (1916–1930) and The American Journal of Cancer Research (1931–1940). From the very beginning, Cancer Research has published landmark papers (https://aacrjournals.org/cancerres/pages/landmark_articles) that have enriched our knowledge of cancer biology and treatment and have provided the foundation upon which major breakthroughs have been built. In the first year of publication, Cancer Research featured seminal studies on the effect of castration on prostate cancer and the mechanism of carcinogenesis that shaped the field (https://www.aacr.org/wp-content/uploads/2019/11/CancerResearch_75Anniversary_1941-2016.pdf). Cancer Research has continued to publish articles that cover the full range of research, spanning from investigations on drug discovery, cancer molecular mechanisms, and the tumor microenvironment to clinical and population studies. As cancer research has evolved over the past century, new AACR journals have emerged to embrace and support expanding fields, providing specialized venues for studies that deepen our understanding of areas that were historically covered by Cancer Research. In this regard, the “pedigree” of AACR journals stemmed from the principles set by Cancer Research, which remains a venue for publishing fundamental studies in all areas of cancer research, including emerging areas such as cancer data science and mathematics. As a society journal, Cancer Research serves the community through its editorial process that is guided by the judgment of international academic editors who provide rich expertise in various areas as practicing researchers. Further, the Journal embraces early career investigators and has recognized these researchers with the prestigious Cancer Research Early Career Award. Guided by its extensive history, Cancer Research hopes to motivate and support the next generation of scientists to lessen the burden of cancer through their innovative research.As cancer science and medicine entered the molecular biology era, it became clear that a communication channel was needed to emphasize basic science studies in oncology—studies that report significant mechanistic findings at the molecular or cellular level. Originally published under the title Cell Growth & Differentiation from 1990 to 2002, Molecular Cancer Research (MCR) was launched as the AACR was beginning to build its now-renowned focus on molecular biology and genetics. The Journal served to help emphasize this focus and attract more scientists into the AACR's membership. As part of this mission, MCR features studies exploring the molecular underpinnings of each of the hallmarks of cancer, with a particular emphasis on studies elucidating oncogenic alterations in metabolism. Cancer metabolism is increasingly recognized as a key vulnerability of tumor biology. MCR is committed to recruiting and disseminating studies featuring novel metabolomic analyses, mass spectrometry, metabolic imaging and tracing, and other approaches that clarify links between metabolism and cancer, with the goal of identifying metabolic vulnerabilities and adding to the armamentarium of anticancer interventions. In addition to publishing impactful basic cancer research studies, the Journal aims to promote diversity of thought and perspective within the basic cancer research community. To achieve this goal, MCR has launched an initiative in which senior investigators are paired with rising stars in their fields to write and edit review articles jointly. This initiative encourages collaboration among researchers by integrating historical perspectives with new directions to provide novel, actionable insights for the field.Cancer Epidemiology, Biomarkers & Prevention (CEBP) is the leading subspecialty journal for fundamental and applied population science research describing the burden of cancer; uncovering possible causes of cancer and its progression; and informing and evaluating strategies for cancer prevention, early detection, cancer survivorship, and closing the cancer disparities gap. CEBP is unique among AACR journals in focusing on populations at risk for cancer, with cancer, and surviving cancer, especially U.S. and global populations who experience health inequities. Among its many contributions, the Journal has advanced the field of molecular epidemiology of cancer by providing expert peer review and a highly regarded publications forum and has helped launch the careers of many investigators who conduct population science research on cancer. CEBP plays an active role in informing public health practice, policy, and recommendations by publishing articles that are cited as part of the evidence base, including by the FDA, the Centers for Disease Control and Prevention, the U.S. Preventive Services Task Force, and the World Health Organization. Recognizing the societal need to enhance the translation of population science evidence for cancer prevention and control today and in the future, the Journal recently expanded its scope to include cancer care delivery and implementation science research. Like the other AACR journals, CEBP serves the research community well through its editorial rigor and publication of innovative and impactful research addressing contemporary and emerging cancer problems.As biologic insights into cancer rapidly accelerated in the decades after the discovery of the structure of DNA and the armamenta­rium of anticancer agents began to expand, the AACR identified the need for a communication outlet focused on the clinical applications of these discoveries; Clinical Cancer Research was launched to provide this much-needed outlet. Early therapeutic development has since transitioned from rigidly divided trial phases into an adaptive process that encompasses investigation of safety, pharmacokinetics, proof of mechanism, and first evidence of clinical activity. These same trials now frequently serve as the basis for first regulatory approval. The Journal bridges the transition from late preclinical development, when a new therapy is being paired with insights into the molecular features that predict responsiveness to therapy, to clinical validation of those hypotheses, and the Journal has evolved into a premier venue for phase I/II trials. As the only AACR journal with clinical research of all types, including clinical trials, as its sole purview, Clinical Cancer Research has taken the charge of being the journal that accounts for what happens to the discoveries described in basic and translational cancer research when they are tested prospectively for their potential impact on the outcomes of patients with cancer. Since its launch, Clinical Cancer Research has also played a distinct educational role among clinical oncology journals, with a robust collection of review articles to benefit basic scientists with clinical interests and clinical investigators studying new agents with unique biologic mechanisms of action. Clinical Cancer Research has also become an important forum for critical discussions in clinical oncology. Field-leading experts are invited to deliberate on the progress made in a given therapeutic area, focusing on the lessons to be learned from recent successes and failures. Authors from the FDA provide detailed insights into the data that drive regulatory decision-making for each successful therapy. Clinical Cancer Research continues to demonstrate the AACR's long-standing commitment to accelerating research that leads to potential interventions for prevention, early detection, and treatment of cancer and particularly to showcasing clinical trials.Improving and expanding the arsenal of anticancer therapies is an essential goal in our shared mission to prevent and cure all cancers. From before the humble beginnings of nitrogen mustards and vinca alkaloids to the advent of immuno-oncology and rationally designed targeted therapy, the last 115 years have seen quantum leaps in therapeutic strategies and clinical options to combat cancer. Molecular Cancer Therapeutics has been at the forefront of this effort for more than 20 years, publishing top-tier science in the design, synthesis, discovery, and preclinical study of novel therapeutic agents for the treatment and prevention of cancer. The Journal's scope covers anticancer therapeutics broadly, including precision medicine therapies of all types: cell therapies, gene therapies, RNA therapeutics, oncolytic viruses, and vaccines in addition to established regimens such as mole­cular and biologic agents, chemotherapy, and radiotherapy. Among these efforts, the Journal provides a specialized venue for the first disclosure of experimental therapeutics advancing toward clinical trials, providing a platform with international reach to authors. The crucial role of Molecular Cancer Therapeutics among the AACR journals—and, indeed, among all oncology journals—cannot be overstated. The Journal's laser focus on disseminating rigorously vetted research with near-term clinical benefit has enormous potential to impact the entire cancer research community and to improve, extend, and defend the lives of patients with cancer. To that end, Molecular Cancer Therapeutics continues to provide a vital forum for the communication of important discoveries in cancer therapeutics research to the global research community.Effective global cancer control must emphasize efforts to reduce cancer incidence rather than concentrating solely on cancer treatment. To help catalyze such efforts, the AACR launched Cancer Prevention Research (CaPR) in 2008 to be devoted excl­usively to cancer prevention research. From its inception, CaPR has endeavored to be a primary resource for original articles, scholarly reviews, and timely perspectives regarding basic, translational, clinical, and population science investigations related to cancer risk reduction. Five years ago, CaPR published the landmark perspective, “Transforming Cancer Prevention through Precision Medicine and Immune-oncology,” which proposed a Pre-Cancer Atlas and recognized unprecedented opportunities to interrogate the biology of premalignancy (1). The subsequent development of the Pre-Cancer Atlas, together with other advances, represents a “moonshot” opportunity for the field of cancer prevention. CaPR will continue to cultivate high-caliber content from pioneers in fields such as carcinogenesis, the biology of premalignancy, cancer risk assessment, screening, and policy implementation that will transform the way we detect and, ultimately, intercept and prevent cancer. The Journal's mission to reflect the current state of cancer prevention and to catalyze the development of the field supports the AACR mission to prevent and cure all cancers. The community of researchers, educators, advocates, and funders that works together under the umbrella of the AACR and its family of journals is a critical part of the cancer prevention ecosystem. Together, we are publishing research that defines the field of cancer prevention, building a translational bridge between bench and community, and developing the next generation of cancer prevention researchers.In 2011, recognizing the cancer research community's need for a journal that published the most impactful research while placing a premium on streamlined editorial processes and service to authors, the AACR launched Cancer Discovery. Bringing together basic scientists with detailed knowledge of cancer biology and physicians at the vanguard of science-driven clinical trial design, Cancer Discovery immediately changed the landscape of scientific publishing in the field, with many other journals now trying to emulate the unique mix of basic, translational, and clinical research that the Journal pioneered. Cancer Discovery has been at the forefront of the most important developments in cancer over the past decade, from targeted therapy and immunotherapy to technological advances in single-cell sequencing and liquid biopsy that have fundamentally changed our understanding of cancer biology and response to treatment. Preclinical and clinical studies published in Cancer Discovery have laid the foundation for numerous FDA approvals within a short period, and influential commentaries and reviews have galvanized the field and guided policy decisions. The unique editorial team consisting of leading researchers and experienced professional editors works collaboratively with the community to quickly publish and disseminate the strongest, immediately impactful science to support the AACR mission to prevent and cure all cancers.The first cancer immunotherapeutic is famously considered to have been administered in 1891 by William B. Coley, one of the 11 founders of the AACR, when he used a mixture of heat-killed bacteria (subsequently known as Coley's toxins) to create an inflammatory response that could treat a patient with sarcoma. However, it took more than 100 years before the field of cancer immunology and immunotherapy research gained meaningful traction among those working in the broader discipline of cancer science and medicine. The rapid expansion of the field began in the early 2000s as a result of increasing evidence linking the immune system with cancer development and demonstrations that the immune system might be harnessed to treat cancer, and it has continued at an even more remarkable pace since the FDA approval of the first immune checkpoint inhibitor, the CTLA4-specific blocking antibody ipilimumab, in 2011. Recognizing the need to further enhance interactions between researchers in the realm of cancer immunology and immunotherapy and those in all other areas of the cancer research community, and to provide a forum for the presentation of advances in the rapidly evolving field of cancer immunology science, the AACR collaborated with the Cancer Research Institute to launch Cancer Immunology Research in 2013. Since its inaugural issue, the Journal has disseminated exciting discoveries and developments in the field of cancer immunology and immunotherapy, and successfully introduced the central principles of immunology to cancer biologists and clinical investigators. As a journal devoted to the science underlying some of the most transformative therapeutics to have entered the clinic for the treatment of cancer in recent years, Cancer Immunology Research has played a unique role in advancing the mission of the AACR.Unprecedented progress in understanding the pathogenesis of hematologic malignancies and in translating these insights into improved clinical outcomes has created a demand for a high-profile outlet for publishing these discoveries. To address this need and to emphasize the AACR's commitment to the prevention and cure of all types of cancer, Blood Cancer Discovery was launched in 2020 to inspire, facilitate, and broadly disseminate important discoveries about hematologic malignancies. The Journal's model of operation replicates Cancer Discovery's success in creating synergies between the expertise of leaders in the field and the dedication of in-house editorial and publishing teams, enabling rigorous, rapid, and transparent editorial processes. Blood Cancer Discovery has published cutting-edge research articles on a broad spectrum of topics encompassing leukemia, lymphoma, myeloma, and other blood cancer subtypes that also have profound implications for our understanding of solid tumors. The Journal has also published all the phases of clinical research: drug development in preclinical disease models, clinical trials, molecular events underlying clinical responses and resistance to therapies, and real-world epidemiology. As a forum for diverse ideas shaping future research directions, Blood Cancer Discovery has published incisive commentaries and has partnered with the AACR's hematologic malignancy-focused Special Conferences, quickly emerging as a thought leader in blood cancer research.The landscape of cancer science and medicine continues to change and accelerate, becoming ever more multifaceted. Launched in October 2021, Cancer Research Communications was designed with these considerations in mind. Most crucially, the Journal is fully open access and boasts the broadest and most flexible scope of any AACR title to date, providing a pathway to publication for authors working within funder mandates or whose work falls outside the scope of other titles in the AACR portfolio. The Journal's nine sections offer a comprehensive view of the spectrum of oncology research. With an editorial ethos centered on accessibility, reproducibility, and value to the field, the Journal is inclusive of a wide variety of important research findings that may be beyond the scope of other journals in the program. Cancer Research Communications is committed to catalyzing the rapid dissemination of rigorously peer-reviewed scientific findings in diversified areas of study, including but not limited to physics, engineering, mathematics, and computational biology. This interdisciplinary approach stimulates the cross-pollination of insight and innovation among cancer researchers. Moreover, the Journal emphasizes flourishing areas of research—such as precision medicine, immuno-oncology, and disparities in cancer health outcomes—that will be foundational to the next 115 years of progress against cancer. As a thoroughly modern platform designed to meet the needs of our authors and readers while complementing the other AACR journals, Cancer Research Communications is poised to stimulate the efficient and dynamic exchange of knowledge, actively sparking new ideas and discoveries to prevent and cure all cancers.Since the very first issue of The Journal of Cancer Research was published in 1916, the AACR journals have been a critical resource for cancer researchers and physicians, providing a forum for disseminating groundbreaking discoveries in cancer science and medicine. As the current Editors-in-Chief of the AACR journals, we are proud that this tradition of publishing seminal, rigorously vetted research that can change the trajectory of the field has established the AACR journals as a trusted partner of the research community. Importantly, we would like to take this opportunity to thank our authors, editorial teams, reviewers, and readers for their invaluable contributions to this endeavor. The tireless efforts of this community provide a beacon of hope to patients and their loved ones.As we look to the future, we continue to collaborate with the research community to ensure that the journals operate with a forward-thinking mentality that adapts to the evolving needs of all stakeholders. In recent years, we have seen critical scientific and technological innovations propel extraordinary progress against cancer. We are confident that this progress will continue, and we remain dedicated to ensuring that the AACR journals continue to provide a platform for the communication of impactful research and support the AACR mission to prevent and cure all cancers.L. Cantley consulted for Petra Pharmaceuticals, Agios Pharmaceuticals, EIP Pharmaceuticals, Volastra, Larkspur, and Cell Signaling Technologies over the past year. He also received grant support from the NIH/NCI, Gray Foundation, The Mark Foundation, the Breast Cancer Research Foundation, and Stand Up To Cancer/American Association for Cancer Research over the past year, and is a stockholder in Agios Pharmaceuticals, EIP Pharmaceuticals, Cell Signaling Technologies, Volastra, and Larkspur. R. Dalla-Favera is a consultant for NeoGenomics and AstraZeneca and receives research funds from AstraZeneca. L.A. Diaz is a member of the board of directors of Jounce Therapeutics and Epitope and is a compensated consultant to PetDx, Innovatus CP, Se'er, Delfi, Blackstone, Kinnate, and Neophore. He is an inventor of multiple licensed patents related to technology for circulating tumor DNA analyses and mismatch repair deficiency for diagnosis and therapy; some of these licenses and relationships are associated with equity or royalty payments directly to the inventors. He holds equity in Epitope, Jounce Therapeutics, PetDx, Se'er, Delfi, Kinnate, and Neophore; he divested his equity in Personal Genome Diagnostics to LabCorp in February 2022 and he divested his equity in Thrive Earlier Detection to Exact Biosciences in January 2021. His spouse holds equity in Amgen. The terms of all these arrangements are being managed by Memorial Sloan Kettering in accordance with their conflict of interest policies. K.T. Flaherty reports personal fees from Clovis Oncology, Checkmate Pharmaceuticals, Strata Oncology, Kinnate Biopharma, Scorpion Therapeutics, PIC Therapeutics, Apricity, Tvardi, ALX Oncology, xCures, Monopteros, Vibliome, Soley Therapeutics, Quanta Therapeutics, Nextech, Takeda, Novartis, OMRx, and Transcode Therapeutics and other support from Roche/Genentech outside the submitted work. P.D. Greenberg reports grants and personal fees from Juno Therapeutics; grants from Lonza; personal fees and other support from Earli, Metagenomi, Elpiscience, Rapt Therapeutics, and and grants, personal and other support from outside the submitted work. reports personal fees from reports personal fees from Oncology, Memorial Sloan Kettering Cancer The Institute for AACR, and Cancer Research grants, personal and support from and grants and personal fees from and Jounce Therapeutics; and personal fees and support from outside the submitted work. reports personal fees from and Therapeutics; grants from Novartis, Therapeutics, and and personal fees and grants from and outside the submitted work. were by the other authors.

The AACR Journals: Advancing Progress Toward the AACR's 115-Year Mission.

The American Association for Cancer Research (AACR) is the first and largest cancer research organization dedicated to accelerating the conquest of cancer. The stated purpose of the organization when it was founded 115 years ago was “to further the investigation and spread the knowledge of cancer.” Since that time, the AACR has been the driving force to eradicate cancer. Publication of research findings has always been critical to this endeavor, with the 11 founders recognizing the importance of “sharing observations” and the need for a journal to “collect under one cover such contributions as bear in any way upon the general problems of oncology.”The AACR launched its first peer-reviewed scientific journal, The Journal of Cancer Research, in 1916. At the time, it was the only English-language cancer journal in the world. Since then, the AACR portfolio of journals has grown to 10. These journals cover the full spectrum of cancer science and medicine and together, over the years, have published over 100,000 articles and over 130,000 meeting abstracts. This is an immense contribution to the body of knowledge on cancer and has ignited communication among cancer scientists and physicians, helping to catalyze a revolution in the field.We are honored to serve as the current Editors-in-Chief of the AACR journals. Each of the 10 journals was launched by the AACR to meet the scientific information needs of its membership and all those engaged in cancer research. Under our leadership, the journals engage closely and collaboratively with the community to facilitate the presentation and wide dissemination of research findings. Importantly, the AACR is a not-for-profit publisher. This means that any surplus from the AACR journals program is used to help support the cancer research community and the mission of the AACR to prevent and cure all cancers by contributing to funding for AACR grants, scientific conferences, and science policy and advocacy efforts. Here, we highlight the unique roles of our journals within the family of AACR journals and how they serve to advance the mission of the AACR.At the inception of the AACR, there was a clear need for journals focused on cancer research to assemble key studies to help guide the field. Cancer Research was launched in 1941 as the flagship journal of the AACR from a rich ancestry that started with its predecessors: The Journal of Cancer Research (1916–1930) and The American Journal of Cancer Research (1931–1940). From the very beginning, Cancer Research has published landmark papers (https://aacrjournals.org/cancerres/pages/landmark_articles) that have enriched our knowledge of cancer biology and treatment and have provided the foundation upon which major breakthroughs have been built. In the first year of publication, Cancer Research featured seminal studies on the effect of castration on prostate cancer and the mechanism of carcinogenesis that shaped the field (https://www.aacr.org/wp-content/uploads/2019/11/CancerResearch_75Anniversary_1941-2016.pdf). Cancer Research has continued to publish articles that cover the full range of research, spanning from investigations on drug discovery, cancer molecular mechanisms, and the tumor microenvironment to clinical and population studies. As cancer research has evolved over the past century, new AACR journals have emerged to embrace and support expanding fields, providing specialized venues for studies that deepen our understanding of areas that were historically covered by Cancer Research. In this regard, the “pedigree” of AACR journals stemmed from the principles set by Cancer Research, which remains a venue for publishing fundamental studies in all areas of cancer research, including emerging areas such as cancer data science and mathematics. As a society journal, Cancer Research serves the community through its editorial process that is guided by the judgment of international academic editors who provide rich expertise in various areas as practicing researchers. Further, the Journal embraces early career investigators and has recognized these researchers with the prestigious Cancer Research Early Career Award. Guided by its extensive history, Cancer Research hopes to motivate and support the next generation of scientists to lessen the burden of cancer through their innovative research.As cancer science and medicine entered the molecular biology era, it became clear that a communication channel was needed to emphasize basic science studies in oncology—studies that report significant mechanistic findings at the molecular or cellular level. Originally published under the title Cell Growth & Differentiation from 1990 to 2002, Molecular Cancer Research (MCR) was launched as the AACR was beginning to build its now-renowned focus on molecular biology and genetics. The Journal served to help emphasize this focus and attract more scientists into the AACR's membership. As part of this mission, MCR features studies exploring the molecular underpinnings of each of the hallmarks of cancer, with a particular emphasis on studies elucidating oncogenic alterations in metabolism. Cancer metabolism is increasingly recognized as a key vulnerability of tumor biology. MCR is committed to recruiting and disseminating studies featuring novel metabolomic analyses, mass spectrometry, metabolic imaging and tracing, and other approaches that clarify links between metabolism and cancer, with the goal of identifying metabolic vulnerabilities and adding to the armamentarium of anticancer interventions. In addition to publishing impactful basic cancer research studies, the Journal aims to promote diversity of thought and perspective within the basic cancer research community. To achieve this goal, MCR has launched an initiative in which senior investigators are paired with rising stars in their fields to write and edit review articles jointly. This initiative encourages collaboration among researchers by integrating historical perspectives with new directions to provide novel, actionable insights for the field.Cancer Epidemiology, Biomarkers & Prevention (CEBP) is the leading subspecialty journal for fundamental and applied population science research describing the burden of cancer; uncovering possible causes of cancer and its progression; and informing and evaluating strategies for cancer prevention, early detection, cancer survivorship, and closing the cancer disparities gap. CEBP is unique among AACR journals in focusing on populations at risk for cancer, with cancer, and surviving cancer, especially U.S. and global populations who experience health inequities. Among its many contributions, the Journal has advanced the field of molecular epidemiology of cancer by providing expert peer review and a highly regarded publications forum and has helped launch the careers of many investigators who conduct population science research on cancer. CEBP plays an active role in informing public health practice, policy, and recommendations by publishing articles that are cited as part of the evidence base, including by the FDA, the Centers for Disease Control and Prevention, the U.S. Preventive Services Task Force, and the World Health Organization. Recognizing the societal need to enhance the translation of population science evidence for cancer prevention and control today and in the future, the Journal recently expanded its scope to include cancer care delivery and implementation science research. Like the other AACR journals, CEBP serves the research community well through its editorial rigor and publication of innovative and impactful research addressing contemporary and emerging cancer problems.As biologic insights into cancer rapidly accelerated in the decades after the discovery of the structure of DNA and the armamenta­rium of anticancer agents began to expand, the AACR identified the need for a communication outlet focused on the clinical applications of these discoveries; Clinical Cancer Research was launched to provide this much-needed outlet. Early therapeutic development has since transitioned from rigidly divided trial phases into an adaptive process that encompasses investigation of safety, pharmacokinetics, proof of mechanism, and first evidence of clinical activity. These same trials now frequently serve as the basis for first regulatory approval. The Journal bridges the transition from late preclinical development, when a new therapy is being paired with insights into the molecular features that predict responsiveness to therapy, to clinical validation of those hypotheses, and the Journal has evolved into a premier venue for phase I/II trials. As the only AACR journal with clinical research of all types, including clinical trials, as its sole purview, Clinical Cancer Research has taken the charge of being the journal that accounts for what happens to the discoveries described in basic and translational cancer research when they are tested prospectively for their potential impact on the outcomes of patients with cancer. Since its launch, Clinical Cancer Research has also played a distinct educational role among clinical oncology journals, with a robust collection of review articles to benefit basic scientists with clinical interests and clinical investigators studying new agents with unique biologic mechanisms of action. Clinical Cancer Research has also become an important forum for critical discussions in clinical oncology. Field-leading experts are invited to deliberate on the progress made in a given therapeutic area, focusing on the lessons to be learned from recent successes and failures. Authors from the FDA provide detailed insights into the data that drive regulatory decision-making for each successful therapy. Clinical Cancer Research continues to demonstrate the AACR's long-standing commitment to accelerating research that leads to potential interventions for prevention, early detection, and treatment of cancer and particularly to showcasing clinical trials.Improving and expanding the arsenal of anticancer therapies is an essential goal in our shared mission to prevent and cure all cancers. From before the humble beginnings of nitrogen mustards and vinca alkaloids to the advent of immuno-oncology and rationally designed targeted therapy, the last 115 years have seen quantum leaps in therapeutic strategies and clinical options to combat cancer. Molecular Cancer Therapeutics has been at the forefront of this effort for more than 20 years, publishing top-tier science in the design, synthesis, discovery, and preclinical study of novel therapeutic agents for the treatment and prevention of cancer. The Journal's scope covers anticancer therapeutics broadly, including precision medicine therapies of all types: cell therapies, gene therapies, RNA therapeutics, oncolytic viruses, and vaccines in addition to established regimens such as mole­cular and biologic agents, chemotherapy, and radiotherapy. Among these efforts, the Journal provides a specialized venue for the first disclosure of experimental therapeutics advancing toward clinical trials, providing a platform with international reach to authors. The crucial role of Molecular Cancer Therapeutics among the AACR journals—and, indeed, among all oncology journals—cannot be overstated. The Journal's laser focus on disseminating rigorously vetted research with near-term clinical benefit has enormous potential to impact the entire cancer research community and to improve, extend, and defend the lives of patients with cancer. To that end, Molecular Cancer Therapeutics continues to provide a vital forum for the communication of important discoveries in cancer therapeutics research to the global research community.Effective global cancer control must emphasize efforts to reduce cancer incidence rather than concentrating solely on cancer treatment. To help catalyze such efforts, the AACR launched Cancer Prevention Research (CaPR) in 2008 to be devoted excl­usively to cancer prevention research. From its inception, CaPR has endeavored to be a primary resource for original articles, scholarly reviews, and timely perspectives regarding basic, translational, clinical, and population science investigations related to cancer risk reduction. Five years ago, CaPR published the landmark perspective, “Transforming Cancer Prevention through Precision Medicine and Immune-oncology,” which proposed a Pre-Cancer Atlas and recognized unprecedented opportunities to interrogate the biology of premalignancy (1). The subsequent development of the Pre-Cancer Atlas, together with other advances, represents a “moonshot” opportunity for the field of cancer prevention. CaPR will continue to cultivate high-caliber content from pioneers in fields such as carcinogenesis, the biology of premalignancy, cancer risk assessment, screening, and policy implementation that will transform the way we detect and, ultimately, intercept and prevent cancer. The Journal's mission to reflect the current state of cancer prevention and to catalyze the development of the field supports the AACR mission to prevent and cure all cancers. The community of researchers, educators, advocates, and funders that works together under the umbrella of the AACR and its family of journals is a critical part of the cancer prevention ecosystem. Together, we are publishing research that defines the field of cancer prevention, building a translational bridge between bench and community, and developing the next generation of cancer prevention researchers.In 2011, recognizing the cancer research community's need for a journal that published the most impactful research while placing a premium on streamlined editorial processes and service to authors, the AACR launched Cancer Discovery. Bringing together basic scientists with detailed knowledge of cancer biology and physicians at the vanguard of science-driven clinical trial design, Cancer Discovery immediately changed the landscape of scientific publishing in the field, with many other journals now trying to emulate the unique mix of basic, translational, and clinical research that the Journal pioneered. Cancer Discovery has been at the forefront of the most important developments in cancer over the past decade, from targeted therapy and immunotherapy to technological advances in single-cell sequencing and liquid biopsy that have fundamentally changed our understanding of cancer biology and response to treatment. Preclinical and clinical studies published in Cancer Discovery have laid the foundation for numerous FDA approvals within a short period, and influential commentaries and reviews have galvanized the field and guided policy decisions. The unique editorial team consisting of leading researchers and experienced professional editors works collaboratively with the community to quickly publish and disseminate the strongest, immediately impactful science to support the AACR mission to prevent and cure all cancers.The first cancer immunotherapeutic is famously considered to have been administered in 1891 by William B. Coley, one of the 11 founders of the AACR, when he used a mixture of heat-killed bacteria (subsequently known as Coley's toxins) to create an inflammatory response that could treat a patient with sarcoma. However, it took more than 100 years before the field of cancer immunology and immunotherapy research gained meaningful traction among those working in the broader discipline of cancer science and medicine. The rapid expansion of the field began in the early 2000s as a result of increasing evidence linking the immune system with cancer development and demonstrations that the immune system might be harnessed to treat cancer, and it has continued at an even more remarkable pace since the FDA approval of the first immune checkpoint inhibitor, the CTLA4-specific blocking antibody ipilimumab, in 2011. Recognizing the need to further enhance interactions between researchers in the realm of cancer immunology and immunotherapy and those in all other areas of the cancer research community, and to provide a forum for the presentation of advances in the rapidly evolving field of cancer immunology science, the AACR collaborated with the Cancer Research Institute to launch Cancer Immunology Research in 2013. Since its inaugural issue, the Journal has disseminated exciting discoveries and developments in the field of cancer immunology and immunotherapy, and successfully introduced the central principles of immunology to cancer biologists and clinical investigators. As a journal devoted to the science underlying some of the most transformative therapeutics to have entered the clinic for the treatment of cancer in recent years, Cancer Immunology Research has played a unique role in advancing the mission of the AACR.Unprecedented progress in understanding the pathogenesis of hematologic malignancies and in translating these insights into improved clinical outcomes has created a demand for a high-profile outlet for publishing these discoveries. To address this need and to emphasize the AACR's commitment to the prevention and cure of all types of cancer, Blood Cancer Discovery was launched in 2020 to inspire, facilitate, and broadly disseminate important discoveries about hematologic malignancies. The Journal's model of operation replicates Cancer Discovery's success in creating synergies between the expertise of leaders in the field and the dedication of in-house editorial and publishing teams, enabling rigorous, rapid, and transparent editorial processes. Blood Cancer Discovery has published cutting-edge research articles on a broad spectrum of topics encompassing leukemia, lymphoma, myeloma, and other blood cancer subtypes that also have profound implications for our understanding of solid tumors. The Journal has also published all the phases of clinical research: drug development in preclinical disease models, clinical trials, molecular events underlying clinical responses and resistance to therapies, and real-world epidemiology. As a forum for diverse ideas shaping future research directions, Blood Cancer Discovery has published incisive commentaries and has partnered with the AACR's hematologic malignancy-focused Special Conferences, quickly emerging as a thought leader in blood cancer research.The landscape of cancer science and medicine continues to change and accelerate, becoming ever more multifaceted. Launched in October 2021, Cancer Research Communications was designed with these considerations in mind. Most crucially, the Journal is fully open access and boasts the broadest and most flexible scope of any AACR title to date, providing a pathway to publication for authors working within funder mandates or whose work falls outside the scope of other titles in the AACR portfolio. The Journal's nine sections offer a comprehensive view of the spectrum of oncology research. With an editorial ethos centered on accessibility, reproducibility, and value to the field, the Journal is inclusive of a wide variety of important research findings that may be beyond the scope of other journals in the program. Cancer Research Communications is committed to catalyzing the rapid dissemination of rigorously peer-reviewed scientific findings in diversified areas of study, including but not limited to physics, engineering, mathematics, and computational biology. This interdisciplinary approach stimulates the cross-pollination of insight and innovation among cancer researchers. Moreover, the Journal emphasizes flourishing areas of research—such as precision medicine, immuno-oncology, and disparities in cancer health outcomes—that will be foundational to the next 115 years of progress against cancer. As a thoroughly modern platform designed to meet the needs of our authors and readers while complementing the other AACR journals, Cancer Research Communications is poised to stimulate the efficient and dynamic exchange of knowledge, actively sparking new ideas and discoveries to prevent and cure all cancers.Since the very first issue of The Journal of Cancer Research was published in 1916, the AACR journals have been a critical resource for cancer researchers and physicians, providing a forum for disseminating groundbreaking discoveries in cancer science and medicine. As the current Editors-in-Chief of the AACR journals, we are proud that this tradition of publishing seminal, rigorously vetted research that can change the trajectory of the field has established the AACR journals as a trusted partner of the research community. Importantly, we would like to take this opportunity to thank our authors, editorial teams, reviewers, and readers for their invaluable contributions to this endeavor. The tireless efforts of this community provide a beacon of hope to patients and their loved ones.As we look to the future, we continue to collaborate with the research community to ensure that the journals operate with a forward-thinking mentality that adapts to the evolving needs of all stakeholders. In recent years, we have seen critical scientific and technological innovations propel extraordinary progress against cancer. We are confident that this progress will continue, and we remain dedicated to ensuring that the AACR journals continue to provide a platform for the communication of impactful research and support the AACR mission to prevent and cure all cancers.L. Cantley consulted for Petra Pharmaceuticals, Agios Pharmaceuticals, EIP Pharmaceuticals, Volastra, Larkspur, and Cell Signaling Technologies over the past year. He also received grant support from the NIH/NCI, Gray Foundation, The Mark Foundation, the Breast Cancer Research Foundation, and Stand Up To Cancer/American Association for Cancer Research over the past year, and is a stockholder in Agios Pharmaceuticals, EIP Pharmaceuticals, Cell Signaling Technologies, Volastra, and Larkspur. R. Dalla-Favera is a consultant for NeoGenomics and AstraZeneca and receives research funds from AstraZeneca. L.A. Diaz is a member of the board of directors of Jounce Therapeutics and Epitope and is a compensated consultant to PetDx, Innovatus CP, Se'er, Delfi, Blackstone, Kinnate, and Neophore. He is an inventor of multiple licensed patents related to technology for circulating tumor DNA analyses and mismatch repair deficiency for diagnosis and therapy; some of these licenses and relationships are associated with equity or royalty payments directly to the inventors. He holds equity in Epitope, Jounce Therapeutics, PetDx, Se'er, Delfi, Kinnate, and Neophore; he divested his equity in Personal Genome Diagnostics to LabCorp in February 2022 and he divested his equity in Thrive Earlier Detection to Exact Biosciences in January 2021. His spouse holds equity in Amgen. The terms of all these arrangements are being managed by Memorial Sloan Kettering in accordance with their conflict of interest policies. K.T. Flaherty reports personal fees from Clovis Oncology, Checkmate Pharmaceuticals, Strata Oncology, Kinnate Biopharma, Scorpion Therapeutics, PIC Therapeutics, Apricity, Tvardi, ALX Oncology, xCures, Monopteros, Vibliome, Soley Therapeutics, Quanta Therapeutics, Nextech, Takeda, Novartis, OMRx, and Transcode Therapeutics and other support from Roche/Genentech outside the submitted work. P.D. Greenberg reports grants and personal fees from Juno Therapeutics; grants from Lonza; personal fees and other support from Earli, Metagenomi, Elpiscience, Rapt Therapeutics, and and grants, personal and other support from outside the submitted work. reports personal fees from reports personal fees from Oncology, Memorial Sloan Kettering Cancer The Institute for AACR, and Cancer Research grants, personal and support from and grants and personal fees from and Jounce Therapeutics; and personal fees and support from outside the submitted work. reports personal fees from and Therapeutics; grants from Novartis, Therapeutics, and and personal fees and grants from and outside the submitted work. were by the other authors.

The AACR Journals: Advancing Progress Toward the AACR's 115-Year Mission.

The AACR Journals: Advancing Progress Toward the AACR's 115-Year Mission.

The AACR Journals: Advancing Progress Toward the AACR's 115-Year Mission.

The AACR Journals: Advancing Progress Toward the AACR's 115-Year Mission.

The American Association for Cancer Research (AACR) is the first and largest cancer research organization dedicated to accelerating the conquest of cancer. The stated purpose of the organization when it was founded 115 years ago was “to further the investigation and spread the knowledge of cancer.” Since that time, the AACR has been the driving force to eradicate cancer. Publication of research findings has always been critical to this endeavor, with the 11 founders recognizing the importance of “sharing observations” and the need for a journal to “collect under one cover such contributions as bear in any way upon the general problems of oncology.”The AACR launched its first peer-reviewed scientific journal, The Journal of Cancer Research, in 1916. At the time, it was the only English-language cancer journal in the world. Since then, the AACR portfolio of journals has grown to 10. These journals cover the full spectrum of cancer science and medicine and together, over the years, have published over 100,000 articles and over 130,000 meeting abstracts. This is an immense contribution to the body of knowledge on cancer and has ignited communication among cancer scientists and physicians, helping to catalyze a revolution in the field.We are honored to serve as the current Editors-in-Chief of the AACR journals. Each of the 10 journals was launched by the AACR to meet the scientific information needs of its membership and all those engaged in cancer research. Under our leadership, the journals engage closely and collaboratively with the community to facilitate the presentation and wide dissemination of research findings. Importantly, the AACR is a not-for-profit publisher. This means that any surplus from the AACR journals program is used to help support the cancer research community and the mission of the AACR to prevent and cure all cancers by contributing to funding for AACR grants, scientific conferences, and science policy and advocacy efforts. Here, we highlight the unique roles of our journals within the family of AACR journals and how they serve to advance the mission of the AACR.At the inception of the AACR, there was a clear need for journals focused on cancer research to assemble key studies to help guide the field. Cancer Research was launched in 1941 as the flagship journal of the AACR from a rich ancestry that started with its predecessors: The Journal of Cancer Research (1916–1930) and The American Journal of Cancer Research (1931–1940). From the very beginning, Cancer Research has published landmark papers (https://aacrjournals.org/cancerres/pages/landmark_articles) that have enriched our knowledge of cancer biology and treatment and have provided the foundation upon which major breakthroughs have been built. In the first year of publication, Cancer Research featured seminal studies on the effect of castration on prostate cancer and the mechanism of carcinogenesis that shaped the field (https://www.aacr.org/wp-content/uploads/2019/11/CancerResearch_75Anniversary_1941-2016.pdf). Cancer Research has continued to publish articles that cover the full range of research, spanning from investigations on drug discovery, cancer molecular mechanisms, and the tumor microenvironment to clinical and population studies. As cancer research has evolved over the past century, new AACR journals have emerged to embrace and support expanding fields, providing specialized venues for studies that deepen our understanding of areas that were historically covered by Cancer Research. In this regard, the “pedigree” of AACR journals stemmed from the principles set by Cancer Research, which remains a venue for publishing fundamental studies in all areas of cancer research, including emerging areas such as cancer data science and mathematics. As a society journal, Cancer Research serves the community through its editorial process that is guided by the judgment of international academic editors who provide rich expertise in various areas as practicing researchers. Further, the Journal embraces early career investigators and has recognized these researchers with the prestigious Cancer Research Early Career Award. Guided by its extensive history, Cancer Research hopes to motivate and support the next generation of scientists to lessen the burden of cancer through their innovative research.As cancer science and medicine entered the molecular biology era, it became clear that a communication channel was needed to emphasize basic science studies in oncology—studies that report significant mechanistic findings at the molecular or cellular level. Originally published under the title Cell Growth & Differentiation from 1990 to 2002, Molecular Cancer Research (MCR) was launched as the AACR was beginning to build its now-renowned focus on molecular biology and genetics. The Journal served to help emphasize this focus and attract more scientists into the AACR's membership. As part of this mission, MCR features studies exploring the molecular underpinnings of each of the hallmarks of cancer, with a particular emphasis on studies elucidating oncogenic alterations in metabolism. Cancer metabolism is increasingly recognized as a key vulnerability of tumor biology. MCR is committed to recruiting and disseminating studies featuring novel metabolomic analyses, mass spectrometry, metabolic imaging and tracing, and other approaches that clarify links between metabolism and cancer, with the goal of identifying metabolic vulnerabilities and adding to the armamentarium of anticancer interventions. In addition to publishing impactful basic cancer research studies, the Journal aims to promote diversity of thought and perspective within the basic cancer research community. To achieve this goal, MCR has launched an initiative in which senior investigators are paired with rising stars in their fields to write and edit review articles jointly. This initiative encourages collaboration among researchers by integrating historical perspectives with new directions to provide novel, actionable insights for the field.Cancer Epidemiology, Biomarkers & Prevention (CEBP) is the leading subspecialty journal for fundamental and applied population science research describing the burden of cancer; uncovering possible causes of cancer and its progression; and informing and evaluating strategies for cancer prevention, early detection, cancer survivorship, and closing the cancer disparities gap. CEBP is unique among AACR journals in focusing on populations at risk for cancer, with cancer, and surviving cancer, especially U.S. and global populations who experience health inequities. Among its many contributions, the Journal has advanced the field of molecular epidemiology of cancer by providing expert peer review and a highly regarded publications forum and has helped launch the careers of many investigators who conduct population science research on cancer. CEBP plays an active role in informing public health practice, policy, and recommendations by publishing articles that are cited as part of the evidence base, including by the FDA, the Centers for Disease Control and Prevention, the U.S. Preventive Services Task Force, and the World Health Organization. Recognizing the societal need to enhance the translation of population science evidence for cancer prevention and control today and in the future, the Journal recently expanded its scope to include cancer care delivery and implementation science research. Like the other AACR journals, CEBP serves the research community well through its editorial rigor and publication of innovative and impactful research addressing contemporary and emerging cancer problems.As biologic insights into cancer rapidly accelerated in the decades after the discovery of the structure of DNA and the armamenta­rium of anticancer agents began to expand, the AACR identified the need for a communication outlet focused on the clinical applications of these discoveries; Clinical Cancer Research was launched to provide this much-needed outlet. Early therapeutic development has since transitioned from rigidly divided trial phases into an adaptive process that encompasses investigation of safety, pharmacokinetics, proof of mechanism, and first evidence of clinical activity. These same trials now frequently serve as the basis for first regulatory approval. The Journal bridges the transition from late preclinical development, when a new therapy is being paired with insights into the molecular features that predict responsiveness to therapy, to clinical validation of those hypotheses, and the Journal has evolved into a premier venue for phase I/II trials. As the only AACR journal with clinical research of all types, including clinical trials, as its sole purview, Clinical Cancer Research has taken the charge of being the journal that accounts for what happens to the discoveries described in basic and translational cancer research when they are tested prospectively for their potential impact on the outcomes of patients with cancer. Since its launch, Clinical Cancer Research has also played a distinct educational role among clinical oncology journals, with a robust collection of review articles to benefit basic scientists with clinical interests and clinical investigators studying new agents with unique biologic mechanisms of action. Clinical Cancer Research has also become an important forum for critical discussions in clinical oncology. Field-leading experts are invited to deliberate on the progress made in a given therapeutic area, focusing on the lessons to be learned from recent successes and failures. Authors from the FDA provide detailed insights into the data that drive regulatory decision-making for each successful therapy. Clinical Cancer Research continues to demonstrate the AACR's long-standing commitment to accelerating research that leads to potential interventions for prevention, early detection, and treatment of cancer and particularly to showcasing clinical trials.Improving and expanding the arsenal of anticancer therapies is an essential goal in our shared mission to prevent and cure all cancers. From before the humble beginnings of nitrogen mustards and vinca alkaloids to the advent of immuno-oncology and rationally designed targeted therapy, the last 115 years have seen quantum leaps in therapeutic strategies and clinical options to combat cancer. Molecular Cancer Therapeutics has been at the forefront of this effort for more than 20 years, publishing top-tier science in the design, synthesis, discovery, and preclinical study of novel therapeutic agents for the treatment and prevention of cancer. The Journal's scope covers anticancer therapeutics broadly, including precision medicine therapies of all types: cell therapies, gene therapies, RNA therapeutics, oncolytic viruses, and vaccines in addition to established regimens such as mole­cular and biologic agents, chemotherapy, and radiotherapy. Among these efforts, the Journal provides a specialized venue for the first disclosure of experimental therapeutics advancing toward clinical trials, providing a platform with international reach to authors. The crucial role of Molecular Cancer Therapeutics among the AACR journals—and, indeed, among all oncology journals—cannot be overstated. The Journal's laser focus on disseminating rigorously vetted research with near-term clinical benefit has enormous potential to impact the entire cancer research community and to improve, extend, and defend the lives of patients with cancer. To that end, Molecular Cancer Therapeutics continues to provide a vital forum for the communication of important discoveries in cancer therapeutics research to the global research community.Effective global cancer control must emphasize efforts to reduce cancer incidence rather than concentrating solely on cancer treatment. To help catalyze such efforts, the AACR launched Cancer Prevention Research (CaPR) in 2008 to be devoted excl­usively to cancer prevention research. From its inception, CaPR has endeavored to be a primary resource for original articles, scholarly reviews, and timely perspectives regarding basic, translational, clinical, and population science investigations related to cancer risk reduction. Five years ago, CaPR published the landmark perspective, “Transforming Cancer Prevention through Precision Medicine and Immune-oncology,” which proposed a Pre-Cancer Atlas and recognized unprecedented opportunities to interrogate the biology of premalignancy (1). The subsequent development of the Pre-Cancer Atlas, together with other advances, represents a “moonshot” opportunity for the field of cancer prevention. CaPR will continue to cultivate high-caliber content from pioneers in fields such as carcinogenesis, the biology of premalignancy, cancer risk assessment, screening, and policy implementation that will transform the way we detect and, ultimately, intercept and prevent cancer. The Journal's mission to reflect the current state of cancer prevention and to catalyze the development of the field supports the AACR mission to prevent and cure all cancers. The community of researchers, educators, advocates, and funders that works together under the umbrella of the AACR and its family of journals is a critical part of the cancer prevention ecosystem. Together, we are publishing research that defines the field of cancer prevention, building a translational bridge between bench and community, and developing the next generation of cancer prevention researchers.In 2011, recognizing the cancer research community's need for a journal that published the most impactful research while placing a premium on streamlined editorial processes and service to authors, the AACR launched Cancer Discovery. Bringing together basic scientists with detailed knowledge of cancer biology and physicians at the vanguard of science-driven clinical trial design, Cancer Discovery immediately changed the landscape of scientific publishing in the field, with many other journals now trying to emulate the unique mix of basic, translational, and clinical research that the Journal pioneered. Cancer Discovery has been at the forefront of the most important developments in cancer over the past decade, from targeted therapy and immunotherapy to technological advances in single-cell sequencing and liquid biopsy that have fundamentally changed our understanding of cancer biology and response to treatment. Preclinical and clinical studies published in Cancer Discovery have laid the foundation for numerous FDA approvals within a short period, and influential commentaries and reviews have galvanized the field and guided policy decisions. The unique editorial team consisting of leading researchers and experienced professional editors works collaboratively with the community to quickly publish and disseminate the strongest, immediately impactful science to support the AACR mission to prevent and cure all cancers.The first cancer immunotherapeutic is famously considered to have been administered in 1891 by William B. Coley, one of the 11 founders of the AACR, when he used a mixture of heat-killed bacteria (subsequently known as Coley's toxins) to create an inflammatory response that could treat a patient with sarcoma. However, it took more than 100 years before the field of cancer immunology and immunotherapy research gained meaningful traction among those working in the broader discipline of cancer science and medicine. The rapid expansion of the field began in the early 2000s as a result of increasing evidence linking the immune system with cancer development and demonstrations that the immune system might be harnessed to treat cancer, and it has continued at an even more remarkable pace since the FDA approval of the first immune checkpoint inhibitor, the CTLA4-specific blocking antibody ipilimumab, in 2011. Recognizing the need to further enhance interactions between researchers in the realm of cancer immunology and immunotherapy and those in all other areas of the cancer research community, and to provide a forum for the presentation of advances in the rapidly evolving field of cancer immunology science, the AACR collaborated with the Cancer Research Institute to launch Cancer Immunology Research in 2013. Since its inaugural issue, the Journal has disseminated exciting discoveries and developments in the field of cancer immunology and immunotherapy, and successfully introduced the central principles of immunology to cancer biologists and clinical investigators. As a journal devoted to the science underlying some of the most transformative therapeutics to have entered the clinic for the treatment of cancer in recent years, Cancer Immunology Research has played a unique role in advancing the mission of the AACR.Unprecedented progress in understanding the pathogenesis of hematologic malignancies and in translating these insights into improved clinical outcomes has created a demand for a high-profile outlet for publishing these discoveries. To address this need and to emphasize the AACR's commitment to the prevention and cure of all types of cancer, Blood Cancer Discovery was launched in 2020 to inspire, facilitate, and broadly disseminate important discoveries about hematologic malignancies. The Journal's model of operation replicates Cancer Discovery's success in creating synergies between the expertise of leaders in the field and the dedication of in-house editorial and publishing teams, enabling rigorous, rapid, and transparent editorial processes. Blood Cancer Discovery has published cutting-edge research articles on a broad spectrum of topics encompassing leukemia, lymphoma, myeloma, and other blood cancer subtypes that also have profound implications for our understanding of solid tumors. The Journal has also published all the phases of clinical research: drug development in preclinical disease models, clinical trials, molecular events underlying clinical responses and resistance to therapies, and real-world epidemiology. As a forum for diverse ideas shaping future research directions, Blood Cancer Discovery has published incisive commentaries and has partnered with the AACR's hematologic malignancy-focused Special Conferences, quickly emerging as a thought leader in blood cancer research.The landscape of cancer science and medicine continues to change and accelerate, becoming ever more multifaceted. Launched in October 2021, Cancer Research Communications was designed with these considerations in mind. Most crucially, the Journal is fully open access and boasts the broadest and most flexible scope of any AACR title to date, providing a pathway to publication for authors working within funder mandates or whose work falls outside the scope of other titles in the AACR portfolio. The Journal's nine sections offer a comprehensive view of the spectrum of oncology research. With an editorial ethos centered on accessibility, reproducibility, and value to the field, the Journal is inclusive of a wide variety of important research findings that may be beyond the scope of other journals in the program. Cancer Research Communications is committed to catalyzing the rapid dissemination of rigorously peer-reviewed scientific findings in diversified areas of study, including but not limited to physics, engineering, mathematics, and computational biology. This interdisciplinary approach stimulates the cross-pollination of insight and innovation among cancer researchers. Moreover, the Journal emphasizes flourishing areas of research—such as precision medicine, immuno-oncology, and disparities in cancer health outcomes—that will be foundational to the next 115 years of progress against cancer. As a thoroughly modern platform designed to meet the needs of our authors and readers while complementing the other AACR journals, Cancer Research Communications is poised to stimulate the efficient and dynamic exchange of knowledge, actively sparking new ideas and discoveries to prevent and cure all cancers.Since the very first issue of The Journal of Cancer Research was published in 1916, the AACR journals have been a critical resource for cancer researchers and physicians, providing a forum for disseminating groundbreaking discoveries in cancer science and medicine. As the current Editors-in-Chief of the AACR journals, we are proud that this tradition of publishing seminal, rigorously vetted research that can change the trajectory of the field has established the AACR journals as a trusted partner of the research community. Importantly, we would like to take this opportunity to thank our authors, editorial teams, reviewers, and readers for their invaluable contributions to this endeavor. The tireless efforts of this community provide a beacon of hope to patients and their loved ones.As we look to the future, we continue to collaborate with the research community to ensure that the journals operate with a forward-thinking mentality that adapts to the evolving needs of all stakeholders. In recent years, we have seen critical scientific and technological innovations propel extraordinary progress against cancer. We are confident that this progress will continue, and we remain dedicated to ensuring that the AACR journals continue to provide a platform for the communication of impactful research and support the AACR mission to prevent and cure all cancers.L. Cantley consulted for Petra Pharmaceuticals, Agios Pharmaceuticals, EIP Pharmaceuticals, Volastra, Larkspur, and Cell Signaling Technologies over the past year. He also received grant support from the NIH/NCI, Gray Foundation, The Mark Foundation, the Breast Cancer Research Foundation, and Stand Up To Cancer/American Association for Cancer Research over the past year, and is a stockholder in Agios Pharmaceuticals, EIP Pharmaceuticals, Cell Signaling Technologies, Volastra, and Larkspur. R. Dalla-Favera is a consultant for NeoGenomics and AstraZeneca and receives research funds from AstraZeneca. L.A. Diaz is a member of the board of directors of Jounce Therapeutics and Epitope and is a compensated consultant to PetDx, Innovatus CP, Se'er, Delfi, Blackstone, Kinnate, and Neophore. He is an inventor of multiple licensed patents related to technology for circulating tumor DNA analyses and mismatch repair deficiency for diagnosis and therapy; some of these licenses and relationships are associated with equity or royalty payments directly to the inventors. He holds equity in Epitope, Jounce Therapeutics, PetDx, Se'er, Delfi, Kinnate, and Neophore; he divested his equity in Personal Genome Diagnostics to LabCorp in February 2022 and he divested his equity in Thrive Earlier Detection to Exact Biosciences in January 2021. His spouse holds equity in Amgen. The terms of all these arrangements are being managed by Memorial Sloan Kettering in accordance with their conflict of interest policies. K.T. Flaherty reports personal fees from Clovis Oncology, Checkmate Pharmaceuticals, Strata Oncology, Kinnate Biopharma, Scorpion Therapeutics, PIC Therapeutics, Apricity, Tvardi, ALX Oncology, xCures, Monopteros, Vibliome, Soley Therapeutics, Quanta Therapeutics, Nextech, Takeda, Novartis, OMRx, and Transcode Therapeutics and other support from Roche/Genentech outside the submitted work. P.D. Greenberg reports grants and personal fees from Juno Therapeutics; grants from Lonza; personal fees and other support from Earli, Metagenomi, Elpiscience, Rapt Therapeutics, and and grants, personal and other support from outside the submitted work. reports personal fees from reports personal fees from Oncology, Memorial Sloan Kettering Cancer The Institute for AACR, and Cancer Research grants, personal and support from and grants and personal fees from and Jounce Therapeutics; and personal fees and support from outside the submitted work. reports personal fees from and Therapeutics; grants from Novartis, Therapeutics, and and personal fees and grants from and outside the submitted work. were by the other authors.

Delivery of siRNA to the Mouse Lung via a Functionalized Lipopolyamine

Multidrug resistance (MDR) and existing cancer stem cells (CSCs) are two major problems in successful treatment of cancers. Expression of breast cancer resistance protein (BCRP) is known to associate with both MDR and CSCs, suggesting that BCRP is an interesting and ideal target for development of chemosensitizing agents for better treatment of drug resistant cancers and elimination of CSCs. Recently, we identified a novel BCRP inhibitor PZ39 and its analogue compound PZ39C8 which are capable of inhibiting BCRP function and inducing BCRP degradation in lysosome. In the present study, we (1) investigated the mechanism of inhibitor-induced BCRP degradation using a stable cell line expressing GFP-BCRP in combination with pharmacological agents of endocytosis and trafficking and (2) determined the inhibitor binding site in BCRP using compound-conjugated Sepharose 4B beads and pull-down assay. We found that (1) the lysosomal inhibitor Bafilomycin A but not the proteosome inhibitor MG132 abolished PZ39C8-induced BCRP degradation; (2) dynasore, a potent endocytosis inhibitor, and 3-Methyladenine, a autophagy inhibitor, both efficiently blocked the PZ39C8-induced BCRP degradation from plasma and internal membranes; (3) following co-treatment with PZ-39C8 and endocytosis, trafficking, and lysosome inhibitors, BCRP co-localized with the LAMP-1, LC3II and Clathrin, EEA1, the markers of Lysosome, autophagy and endocytic pathways, respectively; and (4) PZ39C8 directly binds BCRP and the binding site/s appears to locate in the domain including TM5-loop-TM6. Taken together, we conclude that PZ39C8 binds to TM5-ECL3-TM6 of BCRP and induces BCRP degradation in lysosome via endocytic and autophagic dependent pathways. Thus, PZ39C8 is potentially a valuable probe for structure-function studies of BCRP and a lead compound for developing therapeutics targeting BCRP-mediated MDR in combinational cancer chemotherapy. Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 739. doi:10.1158/1538-7445.AM2011-739

Aquaporins (AQPs) are water-specific, membrane-channel proteins expressed in diverse tissues. In particular, AQP1 has been reported to be specifically and strongly expressed in most tumor microvascular endothelial cells. Angiogenesis and tumor progression have been dramatically impaired, in AQP1-null mice [Saadoun et al. Nature 434:2005]. These findings support the notion that AQP1 could be considered as a specific target for the treatment of various neoplasias. The AQP1 proteins can be specifically blocked by using small interference RNA molecules (siRNAs). However, despite the considerable potential of RNA interference for the treatment of cancer, the proper systemic delivery of exogenous siRNA molecules is still a challenge. The most significant obstacle is ensuring specific and effective delivery of siRNAs to the cytoplasm of the target cell, limiting toxic effects and serum degradation by RNAses. The use of nanoparticles, as intravascular delivery vehicles, has potential in supporting the efficient, effective and safe systemic delivery of siRNAs. Herein, multiple nanotechnological platforms (nanoconstructs) are used to deliver siRNAs against AQP1. The performance of the different nanoconstructs is assessed in vitro using HeLa cells, transfected to express AQP1 molecules. Three nanoconstructs are studied: fullerenes (C60), poly(lactic-co-glycolic acid) (PLGA) nanospheres and hydrogel-template nanoparticles. Positively charged fullerenes are sub-nanometer spheres (diameter ∼ 0.71 nm) that complex with the negatively charged siRNA molecules forming a stable compound under physiological conditions (pH = 7.4). Differently, the PLGA nanospheres and hydrogel-template nanoparticles are loaded with siRNA molecules during their synthesis process. The silencing performance of the three different nanoconstructs is assessed in vitro at multiple time points, over a period of 6 days post incubation. The loading efficiency, the release rate, the cell-entry mechanisms and potential cytotoxic response are analyzed. The performance of the nanoconstructs is compared with traditional delivery systems based on the use of transfection agents (oligofectamine). AQP1 is here used as a model system, and the optimized nanoconstructs could be utilized also for other siRNA therapeutics. Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 2887. doi:1538-7445.AM2012-2887

Two major hurdles for small interfering RNA (siRNA)-mediated therapies are cell/tissue-type targeted delivery and endosomal entrapment of siRNAs, resulting in inefficient gene silencing. As a result, the objective of this study was to examine the feasibility of utilizing two peptides, one with cancer cell-targeting specificity and the second with endosome-disruptive properties, to co-deliver bioactive siRNAs into oral cancer cells overexpressing the epidermal growth factor receptor (EGFR) and induce silencing of the targeted oncoprotein, CIP2A. Previously, we designed a novel endosome-disruptive peptide, termed 599, that was demonstrated to mediate intracellular delivery of bioactive siRNAs targeting CIP2A (siCIP2A) in vitro. Furthermore, we recently demonstrated that 599 peptide-mediated delivery of siCIP2A into tumor tissues via intratumoral injections reduced the expression of CIP2A and significantly inhibited tumor growth. In order to induce targeted uptake via systemic administration, we designed the EGFR targeting peptide, GE11R9, which was found to deliver siRNAs specifically to EGFR-overexpressing oral cancer cells; however, it was incapable of mediating the delivery of bioactive siRNAs due to endosomal entrapment. Consequently, we developed a novel dual peptide delivery strategy, combining the 599 peptide, with the GE11R9 peptide and examined their ability to co-deliver siRNAs. Our results demonstrated that the dual peptide complex exhibited effective binding and specific uptake of siRNAs into EGFR-overexpressing cells compared to low-EGFR-expressing cells. The co-addition of the 599 peptide with the GE11R9 peptide also restored siRNA functionality. Furthermore, when administered systemically to mice bearing xenograft oral tumors, the dual peptide complex mediated increased targeted delivery of siRNAs into tumor tissues in comparison to the 599 peptide alone. Together, these data demonstrate the clinical potential of the dual peptide strategy for RNAi-based therapeutics by synergistically mediating the effective targeting and delivery of bioactive siRNAs into EGFR-overexpressing cancer cells. Citation Format: Angela A. Alexander-Bryant, Haiwen Zhang, William Pugh, Lu Dinh, Christopher Attaway, Laurence Eggart, Robert Sansevere, Liliana Cantini, Andrew Jakymiw. Dual peptide-mediated targeted delivery of siRNAs for the treatment of oral cancer. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 2057.

*These authors contributed to the devlopment and review of this manuscript but are unable to endorse the request for NIH funding. On Sept. 20, 2011, the American Association for Cancer Research (AACR) released its inaugural AACR Cancer Progress Report to commemorate the