Sequential activation of the MEK-extracellular signal-regulated kinase and MKK3/6-p38 mitogen-activated protein kinase pathways mediates oncogenic ras-induced premature senescence.

Abstract

In primary mammalian cells, oncogenic ras induces premature senescence, depending on an active MEK-extracellular signal-regulated kinase (ERK) mitogen-activated protein kinase (MAPK) pathway. It has been unclear how activation of the mitogenic MEK-ERK pathway by ras can confer growth inhibition. In this study, we have found that the stress-activated MAPK… (More)

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