Cancer Advisor

CANCER BIOLOGY • MOLECULAR ONCOLOGY • EVIDENCE REVIEW From DNA Damage Surveillance to Metabolic Control, Immune Regulation and Emerging Cancer Therapies TP53 , which encodes the tumor-suppressor protein p53 , is one of the most important genes in cancer biology. Often called the “guardian of the genome,” p53 does far more than respond to DNA damage. It coordinates cell-cycle arrest, DNA repair, apoptosis, senescence, metabolism, mitochondrial function, oxidative-stress responses, ferroptosis and aspects of tumor immunity. Evidence update: August 18, 2026  |  Scope: Molecular cancer biology and therapeutic implications  |  Evidence status: Mechanistic biology, translational research and emerging clinical evidence Medical and evidence disclaimer: This article is an educational review of cancer biology and emerging therapeutic research. It does not diagnose, prevent or treat cancer ...

The Shift to Personalized Cancer Care Precision medicine, powered by advances in genomics , is revolutionizing how cancer is diagnosed, treated, and even prevented. Unlike the traditional “one-size-fits-all” approach, precision medicine tailors prevention and treatment strategies to each person’s unique genetic makeup, environment, and lifestyle. This shift is leading to more effective therapies, fewer side effects, and earlier interventions ( 1 ,  2 ,  3 ). Key Innovations Driving Change Comprehensive Tumor Profiling: Oncologists now routinely order detailed genetic analyses of tumors, identifying specific mutations that drive cancer growth. This allows for highly targeted therapies that are more likely to be effective for each individual patient ( 1 ,  4 ,  2 ). Targeted Therapies:  Drugs are developed to target specific genetic mutations or proteins found in cancer cells. For example, HER2-targeted therapies (like trastuzumab and tucatinib) have transformed b...