Abstract
We investigated how nutritional deficiency affects cell cycle and cell viability in A549 lung adenocarcinoma cells. Deprivation of various amino acids or glucose induced cell cycle arrest and cell death in a different manner. Cell death on deprivation of these nutrients was increased by downregulating of p27Kip1 with RNA interference. It was also observed that intrinsic p27Kip1 was segregated in cytoplasm in a glucose-deprived situation. In conclusion, amino acid or glucose deprivation induced cell cycle arrest and cell death, part of which is thought to be rescued by the existence of cytoplasmic p27Kip1.
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