Why is Aziz Sancar's research important for medicine?
My research on DNA repair is directly relevant to medicine, particularly in understanding cancer and aging. Defects in nucleotide excision repair cause xeroderma pigmentosum, a genetic disorder where patients have a thousandfold higher risk of skin cancer due to inability to repair UV damage. By elucidating the molecular steps, we can identify targets for therapies that enhance repair in healthy cells or inhibit it in cancer cells to make them more sensitive to chemotherapy. For example, drugs that block repair pathways can improve the efficacy of cisplatin, a DNA-damaging agent used in cancer treatment. Additionally, my work on the circadian clock's control of DNA repair—showing that repair efficiency varies with time of day—suggests that timing chemotherapy could improve outcomes. We must be patient and let the data speak, but these insights are already guiding clinical strategies.
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