TP63 (Tumour Protein P63): TP63 is a member of the p53 family of transcription factors that plays a key role in the development and maintenance of epithelial tissues, as well as in cell cycle regulation and programmed cell death. It is involved in embryonic development, stem cell maintenance, and tumourigenesis. Mutations in TP63 can cause various developmental disorders and have been linked to certain cancers. Research continues to explore its dual roles in normal cell function and disease.