Transcription profiling of mouse NIH3T3 cell line cultured with and withput FGF and treated with the MEK Inhibitor U0126 at 3 time points before FGF addition reveals ERK-dependent downregulated genes have the ability to block S phase entry

ABSTRACT: The ERK family of MAP kinase plays a critical role in growth factor-stimulated cell cycle progression from G0/G1 to S phase. But, how sustained activation of ERK promotes G1 progression has remained unclear. Here, our systematic analysis on the temporal program of ERK-dependent gene expression shows that sustained activation of ERK is required for induction and maintenance of the decreased expression levels of a set of genes. Moreover, our cell biological analysis reveals that these ERK-dependent downregulated genes have the ability to block S phase entry. Cessation of ERK activation at mid or late G1 leads to a rapid increase of these anti-proliferative genes and results in the inhibition of S phase entry. These findings uncover an important mechanism by which the duration of ERK activati

ORGANISM(S): Mus musculus

SUBMITTER: Eisuke Nishida 

PROVIDER: E-GEOD-4739 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress