Current Opinion in Oncology was launched in 1989. It is one of a successful series of review journals whose unique format is designed to provide a systematic and critical assessment of the literature as presented in the many primary journals. The field of psychiatry is divided into 15 sections that are reviewed once a year. Each section is assigned a Section Editor, a leading authority in the area, who identifies the most important topics at that time. Here we are pleased to introduce the Journal's Section Editors for this issue. SECTION EDITORS Jean A. KlasterskyJean A. KlasterskyProfessor Klastersky was Head of the Department of Medicine at the Institut Jules Bordet in Brussels, Belgium, and Professor of Medicine, Medical Oncology and Physical Diagnosis at the Université Libre de Bruxelles, Belgium, from 1977. He retired from these positions in 2005. Currently, he is the coordinator of the “Programme des Soins Oncologiques” for the Public Hospitals in Brussels and consultant in medical oncology at the Institut Jules Bordet, Belgium. Professor Klastersky was an intern and resident at the University Hospitals of the Université Libre de Bruxelles between 1962 and 1965, where he gained his MD (Docteur en Médecine, Chirurgie et Accouchements). From 1967 to 1968, he was Chief-Resident at Boston City Hospital, USA, and then a Research Fellow and Assistant in Medicine at Thorndike Memorial Laboratory Harvard Medical School, USA. He became Chief of the Section of Infectious Diseases at the Institut Jules Bordet in 1970, before taking up the position of Head of the Department of Medicine in 1977. Professor Klastersky was a founder member of the European Lung Cancer Working Party and was President from 1978 until 2003. He was President (and founder member) of the International EORTC Antimicrobial Therapy Project Group between 1979 and 1987 and the Group's Secretary General from 1987 to 2000. He was President (and founder member) of the Multinational Association for Supportive Care in Cancer (MASCC) from 1990 to 2000. He has been Visiting Professor of Medical Oncology at the Charles University in Prague, Czech Republic, since 1994. Professor Klastersky is a member of the American Society of Clinical Oncology, the American Association of Cancer Research, the European Society of Medical Oncology, the American Society of Microbiology, the Infectious Diseases Society of America, the International Association for the Study of Lung Cancer, the “Royale Académie de Médecine” of Belgium and various other international and national medical and/or oncological societies. Professor Klastersky is the author of over 400 original articles, nearly 400 review articles and 17 scientific books. He is the Editor of Current Opinion in Oncology. Jean-Yves BlayJean-Yves BlayProf. Jean-Yves Blay is a medical oncologist, General Director of the Centre Léon Bérard, the Comprehensive Cancer Centre of Lyon France, researcher and a Professor at the University Claude Bernard, France. Since 2019, he has been the President of the French Federation of Cancer Centers, Unicancer. His work focuses on sarcoma, genomics and the targeted treatment of cancer, immuno-oncology, and the relationship between the tumor immunologic microenvironment and malignant cells, with the goal of clinical applications in the field of diagnosis, prognosis and treatment. He has been awarded the Hamilton-Fairly award from ESMO and the Henry and Mary-Jane Mitjaville Prize from the National Academy of Medicine. He was the co-Scientific Chair of the ESMO 2019 congress. Prof. Blay is the Director of the LYRICAN+ SIRIC, President of the French Sarcoma Group and the Network director of NETSARC+ network of sarcoma reference center for the INCA. He also serves as Secretary for the World Sarcoma Network (WSN)and the Network Director of ERN-EURACAN. He has been elected as Director of the Public Policy of the European Society of Medical Oncology since Jzan 2023. Professor Blay has co-authored over 1,000 peer-reviewed publications and is a highly cited researcher (Clarivate) since 2019. Nadia HindiNadia HindiNadia Hindi is a Medical Oncologist based in Madrid, Spain. Her career is focused on sarcoma, and she combines the clinical activity with sarcoma research, both preclinical and clinical research, with the final aim of increasing therapeutic options for sarcoma patients and identifying predictive and prognostic biomarkers. She is part of the Board of the Spanish Group of Research in Sarcoma (GEIS), in which she is involved in academic clinical trials development and coordination. She is also part of the Coordination Team of the Sarcoma European and Latin-American NETwork (SELNET), an international project which seeks to create a network of expert sarcoma centers in Latin-America. She is also currently part of the Board of Directors of the Connective Tissue Oncology Society (CTOS) Alain HendliszAlain HendliszDr Alain Hendlisz is a Board-certified gastro-enterologist. He gained his MD (Docteur en Médecine, Chirurgie et Accouchements) at the Université Libre de Bruxelles, Belgium in 1988 and has been a specialist in gastroenterology since 1993. He earned his PhD in Medical Sciences at the ULB in 2015. He is currently Head of the Gastroenterology Unit at the Institut Jules Bordet, Anti-Cancer Center of the Université Libre de Bruxelles He is a founding member and is currently serving as vice-chairman on the Board of the BGDO (Belgian Group for Digestive Oncology). He is a member of the American Society of Clinical Oncology (ASCO), the European Society of Medical Oncology (ESMO), the Société Royale Belge de Gastro-entérologie (SRBG) and European Organization for Research and Treatment of Cancer (EORTC). He is involved as principal investigator or co-investigator in numerous national and international clinical studies. Francesco SclafaniFrancesco SclafaniProf. Francesco Sclafani, MD PhD is a Consultant Medical Oncologist, working as Chef de Clinique in the Department of Gastrointestinal Oncology at the Institut Jules Bordet in Brussels, Belgium. He graduated from the University of Palermo, Italy, in 2003 and completed his specialist Medical Oncology training at the University of Milan, Italy, in 2009. He previously worked at the St Vincent's University Hospital in Dublin (2010–2012) and at The Royal Marsden NHS Foundation Trust in London (2012–2018). He was awarded an MD(Res) degree and the Chairman's prize for Outstanding Graduating MD(Res) Student at the University of London – Institute of Cancer Research, UK, in 2018. He is Associate Professor (Maître de Conférence) at the Université Libre de Bruxelles, Belgium. He is an active member of international cooperative groups such as the EORTC Gastrointestinal Tumour Study Group and the International Rare Cancer Initiative Anal Cancer Working Subgroup. He is member of the ESMO Gastrointestinal Faculty and European Commission Initiative on Colorectal Cancer (ECICC) working group, co-Chair of the EORTC Colon, Rectum, Anal Cancer Task Force, and Co-Chair of the ECCO Essential Requirements for Quality Cancer Care (ERQCC) initiative for pancreatic cancer. He is investigator of a number of phase I-IV clinical trials in gastrointestinal cancers, and has published over 100 peer-reviewed articles and book chapters.