Systems analysis identifies an essential role for SHANK-associated RH domain-interacting protein (SHARPIN) in macrophage Toll-like receptor 2 (TLR2) responses

Daniel E. Zak, Frank Schmitz, Elizabeth S. Gold, Alan H. Diercks, Jacques J. Peschon, Joe S. Valvo, Antti Niemistö, Irina Podolsky, Shannon G. Fallen, Rosa Suen, Tetyana Stolyar, Carrie D. Johnson, Kathleen A. Kennedy, M. Kristina Hamilton, Owen M. Siggs, Bruce Beutler, Alan Aderem

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Precise control of the innate immune response is essential to ensure host defense against infection while avoiding inflammatory disease. Systems-level analyses of Toll-like receptor (TLR)-stimulated macrophages suggested that SHANK-associated RH domain-interacting protein (SHARPIN) might play a role in the TLR pathway. This hypothesis was supported by the observation that macrophages derived from chronic proliferative dermatitis mutation (cpdm) mice, which harbor a spontaneous null mutation in the Sharpin gene, exhibited impaired IL-12 production in response to TLR activation. Systems biology approaches were used to define the SHARPIN-regulated networks. Promoter analysis identified NF-κB and AP-1 as candidate transcription factors downstream of SHARPIN, and network analysis suggested selective attenuation of these pathways. We found that the effects of SHARPIN deficiency on the TLR2-induced transcriptome were strikingly correlated with the effects of the recently described hypomorphic L153P/panr2 point mutation in Ikbkg [NF-κB Essential Modulator (NEMO)], suggesting that SHARPIN and NEMO interact. We confirmed this interaction by co-immunoprecipitation analysis and furthermore found it to be abrogated by panr2. NEMO-dependent signaling was affected by SHARPIN deficiency in a manner similar to the panr2 mutation, including impaired p105 and ERK phosphorylation and p65 nuclear localization. Interestingly, SHARPIN deficiency had no effect on IκBα degradation and on p38 and JNK phosphorylation. Taken together, these results demonstrate that SHARPIN is an essential adaptor downstream of the branch point defined by the panr2 mutation in NEMO.

Original languageEnglish (US)
Pages (from-to)11536-11541
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume108
Issue number28
DOIs
StatePublished - Jul 12 2011

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Toll-Like Receptor 2
Systems Analysis
Protein Deficiency
Toll-Like Receptors
Macrophages
Mutation
Phosphorylation
Systems Biology
Transcription Factor AP-1
Dermatitis
Interleukin-12
Transcriptome
Immunoprecipitation
Point Mutation
Innate Immunity
Transcription Factors
Protein Domains
Infection
Genes

Keywords

  • Innate immunity
  • Pattern-recognition
  • Signal transduction
  • Ubiquitylation

ASJC Scopus subject areas

  • General

Cite this

Systems analysis identifies an essential role for SHANK-associated RH domain-interacting protein (SHARPIN) in macrophage Toll-like receptor 2 (TLR2) responses. / Zak, Daniel E.; Schmitz, Frank; Gold, Elizabeth S.; Diercks, Alan H.; Peschon, Jacques J.; Valvo, Joe S.; Niemistö, Antti; Podolsky, Irina; Fallen, Shannon G.; Suen, Rosa; Stolyar, Tetyana; Johnson, Carrie D.; Kennedy, Kathleen A.; Hamilton, M. Kristina; Siggs, Owen M.; Beutler, Bruce; Aderem, Alan.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 108, No. 28, 12.07.2011, p. 11536-11541.

Research output: Contribution to journalArticle

Zak, DE, Schmitz, F, Gold, ES, Diercks, AH, Peschon, JJ, Valvo, JS, Niemistö, A, Podolsky, I, Fallen, SG, Suen, R, Stolyar, T, Johnson, CD, Kennedy, KA, Hamilton, MK, Siggs, OM, Beutler, B & Aderem, A 2011, 'Systems analysis identifies an essential role for SHANK-associated RH domain-interacting protein (SHARPIN) in macrophage Toll-like receptor 2 (TLR2) responses', Proceedings of the National Academy of Sciences of the United States of America, vol. 108, no. 28, pp. 11536-11541. https://doi.org/10.1073/pnas.1107577108
Zak, Daniel E. ; Schmitz, Frank ; Gold, Elizabeth S. ; Diercks, Alan H. ; Peschon, Jacques J. ; Valvo, Joe S. ; Niemistö, Antti ; Podolsky, Irina ; Fallen, Shannon G. ; Suen, Rosa ; Stolyar, Tetyana ; Johnson, Carrie D. ; Kennedy, Kathleen A. ; Hamilton, M. Kristina ; Siggs, Owen M. ; Beutler, Bruce ; Aderem, Alan. / Systems analysis identifies an essential role for SHANK-associated RH domain-interacting protein (SHARPIN) in macrophage Toll-like receptor 2 (TLR2) responses. In: Proceedings of the National Academy of Sciences of the United States of America. 2011 ; Vol. 108, No. 28. pp. 11536-11541.
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