Radiotheranostics in Oncology

Abstract

This review discusses the urgent requirements in modern oncology to address the complexities associated with metastatic cancer, a condition that often lacks comprehensive understanding, particularly concerning receptor expression. The emerging concept of theranostics, which merges precise diagnostics and therapies within the precision medicine framework, underscores the need for further investigation. A central focus of this review is radiotheranostics, a versatile approach offering personalized diagnostic and therapeutic possibilities. It examines the intricate components of radiotheranostics, such as radionuclides, metal-complexing agents, and receptor-specific agents designed to target molecular markers linked to cancer selectively. The study explores potential applications of radiotheranostics, especially in scenarios where conventional treatments have limitations. Investigating patient acceptance and determining the optimal administration route are critical aspects that demand thorough examination to facilitate the integration of radiotheranostics into clinical practice. Furthermore, this review aims to reveal the potential of new ligands and isotopes to enhance the effectiveness of radiotheranostics. Molecular imaging, functioning at the molecular and cellular levels, constitutes a significant element of this study, delivering in-depth anatomical and functional insights. Recognizing the pivotal role of Cancer Stem Cells (CSCs) in precise cancer treatment, the review explores techniques for their identification and characterization within the framework of radiotheranostics. Despite its promise, radiotheranostics faces unique challenges from logistical constraints and regulatory intricacies, setting it apart from conventional chemotherapy. This review seeks to elucidate these challenges and provide potential solutions. In summary, this review responds to the crucial need for advancing our understanding and application of radiotheranostics, holding the potential to offer significant palliative measures, extend patient survival, and even provide cures, particularly for those with metastatic disease and suitable molecular targets.