Differentiated eukaryotic cells have only a finite capacity for cell division. This limitation is thought to be a cellular manifestation of organismal aging, and a restraint to tumor progression. The molecular basis for cellular senescence is not known, but a molecular framework for understanding this phenomenon has recently been established.
机构:
Buck Inst Res Aging, Novato, CA 94945 USA
Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USABuck Inst Res Aging, Novato, CA 94945 USA