A prosurvival function for the p75 receptor death domain mediated via the caspase recruitment domain receptor-interacting protein 2

Gus Khursigara, John Bertin, Hiroko Yano, Howell Moffett, Peter S. DiStefano, Moses V. Chao

Research output: Contribution to journalArticlepeer-review

141 Scopus citations

Abstract

In addition to promoting cell survival, neurotrophins also can elicit apoptosis in restricted cell types. Recent results indicate that nerve growth factor (NGF) can induce Schwann cell death via engagement of the p75 neurotrophin receptor. Here we describe a novel interaction between the p75 receptor and receptor-interacting protein 2, RIP2 (RICK/CARDIAK), that accounts for the ability of neurotrophins to choose between a survival-versus-death pathway. RIP2, an adaptor protein with a serine threonine kinase and a caspase recruitment domain (CARD), is highly expressed in dissociated Schwann cells and displays an endogenous association with p75. RIP2 binds to the death domain of p75 via its CARD domain in an NGF-dependent manner. The introduction of RIP2 into Schwann cells deficient in RIP2 conferred NGF-dependent nuclear transcription factor-κB (NF-κB) activity and decreased the cell death induced by NGF. Conversely, the expression of a dominant-negative version of RIP2 protein resulted in a loss of NGF-induced NF-κB induction and increased NGF-mediated cell death. These results indicate that adaptor proteins like RIP2 can provide a bifunctional switch for cell survival or cell death decisions mediated by the p75 neurotrophin receptor.

Original languageEnglish
Pages (from-to)5854-5863
Number of pages10
JournalJournal of Neuroscience
Volume21
Issue number16
DOIs
StatePublished - Aug 15 2001

Keywords

  • Apoptosis
  • Death domain
  • Neurotrophin
  • Receptor-interacting protein
  • Schwann cells
  • p75 receptor

Fingerprint

Dive into the research topics of 'A prosurvival function for the p75 receptor death domain mediated via the caspase recruitment domain receptor-interacting protein 2'. Together they form a unique fingerprint.

Cite this