Researchers discover how tumor suppressor inhibits cell growth
Thursday, August 7, 2008 - 13:28
in Biology & Nature
Genes that inhibit the spontaneous development of cancer are called tumor suppressor genes. One of the major tumor suppressors is p53, a protein that acts in the cell nucleus to control the expression of other genes whose products can inhibit cell proliferation (increase in cell number) and cell growth (increase in cell size). Abnormal cell proliferation and growth are characteristics of cancer. Scientists previously knew which p53 target genes inhibit cell proliferation, but those required for inhibition of cell growth were unknown.
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