Rapid senescence induced by overexpression of p53 in NIH3T3 cells

An NIH3T3 cell line which overexpresses temperature-sensitive p53Val135 was constructed by introduction of p53Val135 gene. It exhibited rapidly characteristic morphological and biochemical alterations related to replicative senescence when being cultured in 32 °C. We suggested that the overexpression of p53 activated probably the onset of senescence in NIH3T3 cells, which induced a rapid cellular senescence.