This book offers a comprehensive overview of the latest breakthroughs transforming cancer research and treatment. Integrating insights from molecular biology, pharmacology, microbiomics, and artificial intelligence, this volume highlights how cross-disciplinary innovations are redefining oncology. The book explores the applications of multi-omics and computational tools, the potential of heterocyclic and bioactive compounds, and the promise of probiotic-based nanomedicine in advancing personalized cancer therapy. It further examines the emerging roles of the gut microbiome, pharmacomicrobiomics, and AI-driven diagnostics in enhancing therapeutic precision and enabling early cancer detection. Addressing a wide spectrum of cancer types from colorectal and breast cancers to gliomas, the book also discusses contemporary challenges such as microplastic exposure, mitochondrial dysfunction, and the importance of evidence-based clinical practices in oncology. Beyond therapeutics, it highlights cutting-edge diagnostic innovations, including AI-assisted screening tools and microbiome-based biomarkers for early colorectal cancer detection. The volume concludes with evidence-based insights into clinical practices, such as blood transfusion protocols in oncology, effectively bridging laboratory research with real-world clinical applications. With contributions from leading experts across disciplines, this book serves as a valuable reference for oncologists, biomedical researchers, clinicians, and students, offering a forward-looking perspective on how integrated scientific approaches are shaping the future of cancer care.