Article
Genetic and epigenetic mechanisms for the limited lifespan and ageing of normal, diploid cells.
Patologia polska - 1 Jan 1993
Srebro Z
Abstract excerpt
The genetic basis of the limited lifespan and apparently programmed number of divisions in normal, diploid cells is discussed. Two different mechanisms may underlie a programmed inhibition of cell divisions before they age and die: 1. A genetic mechanism involving the CpG sequence in promotor regions of genes. Inactive, but gradually activated basic function genes such as ribosomal and energy metabolism genes,...
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