p53 apoptotic response to DNA damage dependent on bcl2 but not bax in head and neck squamous cell carcinoma lines.

Abstract excerpt

BACKGROUND: In many tumors, the p53 gene has been mutated or deleted. p53 null mutant mice are prone to development of a variety of neoplasms at an early age. In head and neck cancer, p53 mutations are detected in most cases. p53 has been shown to induce growth arrest, differentiation, and death when overexpressed in cancer cell lines. p53 responds to DNA damage by arresting the cell cycle in G1 or G2 phase until...

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