Journal
AUTOPHAGY
Volume 7, Issue 1, Pages 91-93Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/auto.7.1.13852
Keywords
RAGE; Beclin 1; p53; vps34; mTOR; autophagy; apoptosis; DAMP; pancreatic cancer
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The receptor for advanced glycation end products (RAGE) is a member of the immunoglobulin gene superfamily, encoded within the major histocompatability complex class III region. Its multiple ligands include the high mobility group box 1 chromatin binding protein, HMGB1. Recently we reported that RAGE-HMGB1 critically regulates autophagy and apoptosis in pancreatic cancer cells in vivo and in vitro in response to chemotherapy. RAGE inhibits apoptosis (programmed cell death) by a p53 transcription-independent pathway during the response to chemotherapeutic agents. RAGE sustains autophagy (programmed cell survival) associated with decreased phosphorylation of the mammalian target of rapamycin (mTOR) and increased Beclin 1-Vps34 interaction. These findings provide insight into how autophagy-and apoptosis-crossregulatory molecules interact in response to cellular stress including tumor therapy.
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