Article
Reversibility of replicative senescence in Saccharomyces cerevisiae: effect of homologous recombination and cell cycle checkpoints.
DNA repair - 2 Jan 2012
Becerra Sandra C, Thambugala Hiranthi T, Erickson Alison Russell, Lee Christopher K, Lewis L Kevin
Abstract excerpt
Primary human somatic cells grown in culture divide a finite number of times, exhibiting progressive changes in metabolism and morphology before cessation of cycling. This telomere-initiated cellular senescence occurs because cells have halted production of telomerase, a DNA polymerase required for stabilization of chromosome ends. Telomerase-deficient Saccharomyces cerevisiae cells undergo a similar process,...
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