p53 Gene: Guardian of the Genome

The p53 tumor suppressor gene, known as the 'guardian of the genome,' is a cornerstone topic in cancer genetics for Zambian university and college students. This subject covers the structure, function, and regulation of the TP53 gene, highlighting its critical role in responding to cellular stress, DNA damage, and oncogenic signals. Students will learn how p53 activates cell cycle arrest, DNA repair, senescence, or apoptosis, and how its mutation or inactivation is a nearly universal event in human cancers. The topic includes the consequences of germline TP53 mutations (Li-Fraumeni syndrome) and the implications for cancer risk and therapy. Aligned with tertiary-level oncology and genetics curricula in Zambia, this knowledge prepares learners for examinations, molecular pathology, and research into cancer therapeutics. Understanding p53 is essential for careers in oncology, molecular diagnostics, and the development of targeted cancer treatments relevant to Zambia's healthcare needs.