Human Gene Set: GESERICK_TERT_TARGETS_DN

For the Mouse gene set with the same name, see GESERICK_TERT_TARGETS_DN

Standard name GESERICK_TERT_TARGETS_DN
Systematic name M15891
Brief description Genes down-regulated in MEF cells (embryonic fibroblasts) with TERT [GeneID=7015] knockout, after expression of the gene off a retroviral vector.
Full description or abstract Here, we show that ectopic expression of the catalytic subunit of mouse telomerase (mTert) confers a growth advantage to primary murine embryonic fibroblasts (MEFs), which have very long telomeres, as well as facilitates their spontaneous immortalization and increases their colony-forming capacity upon activation of oncogenes. We demonstrate that these telomere length-independent growth-promoting effects of mTert overexpression require catalytically active mTert, as well as the formation of mTert/Terc complexes. The gene expression profile of mTert-overexpressing MEFs indicates that telomerase enhances growth in these cells through the repression of growth-inhibiting genes of the transforming growth factor-beta (TGF-beta) signaling network. We functionally validate this result by showing that mTert abrogates the growth-inhibitory effect of TGF-beta in MEFs, thus demonstrating that telomerase increments the proliferative potential of primary mouse embryonic fibroblasts by targeting the TGF-beta pathway.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 16501597   Authors: Geserick C,Tejera A,González-Suárez E,Klatt P,Blasco MA
Exact source Table 1b
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Source species Mus musculus
Contributed by Lauren Kazmierski (MSigDB Team)
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identifier namespace		 AFFY_Mouse430
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Version history 3.0: First introduced

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