4.7 Article

BAG2 is a target of the c-Myc gene and is involved in cellular senescence via the p21CIP1 pathway

Journal

CANCER LETTERS
Volume 318, Issue 1, Pages 34-41

Publisher

ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2011.11.033

Keywords

BAG2; c-Myc; Senescence; SP1; p21(CIP1)

Categories

Funding

  1. National Natural Science Foundation [30800568]
  2. National Basic Research Program (973 Program), P.R. China [2011CB910700]

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Suppression of c-Myc is likely to induce cellular senescence in many tumors with unclear mechanisms. A proteomics survey indicated that high levels of BCL2-associated athanogene 2 (BAG2) were found in response to c-Myc repression in TRE293 cells. This observation led to the investigation into the role of BAG2 in c-Myc-induced senescence. The association of the c-Myc/SP1 complex with the BAG2 promoter verified the role of c-Myc/SP1 in regulating BAG2 transcription. Furthermore, high levels of BAG2 were found to induce p21(cIP1)-dependent senescence and subsequent carcinogenetic arrest, suggesting its possible role as an indirect activator of the p21(CIP1) pathway. (C) 2011 Elsevier Ireland Ltd. All rights reserved.

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