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Myeloid Cell Sirtuin-1 Expression Does Not Alter Host Immune Responses to Gram-Negative Endotoxemia or Gram-Positive Bacterial Infection

Author(s)
Crotty Alexander, Laura E.; Marsh, Brenda J.; Timmer, Anjuli M.; Lin, Ann E.; Zainabadi, Kayvan; Czopik, Agnieszka; Nizet, Victor; Guarente, Leonard Pershing; ... Show more Show less
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Abstract
The role of sirtuin-1 (SIRT1) in innate immunity, and in particular the influence of SIRT1 on antimicrobial defense against infection, has yet to be reported but is important to define since SIRT1 inhibitors are being investigated as therapeutic agents in the treatment of cancer, Huntington’s disease, and autoimmune diseases. Given the therapeutic potential of SIRT1 suppression, we sought to characterize the role of SIRT1 in host defense. Utilizing both pharmacologic methods and a genetic knockout, we demonstrate that SIRT1 expression has little influence on macrophage and neutrophil antimicrobial functions. Myeloid SIRT1 expression does not change mortality in gram-negative toxin-induced shock or gram-positive bacteremia, suggesting that therapeutic suppression of SIRT1 may be done safely without suppression of myeloid cell-specific immune responses to severe bacterial infections.
Date issued
2013-12
URI
http://hdl.handle.net/1721.1/86038
Department
Massachusetts Institute of Technology. Department of Biology
Journal
PLoS ONE
Publisher
Public Library of Science
Citation
Crotty Alexander, Laura E., Brenda J. Marsh, Anjuli M. Timmer, Ann E. Lin, Kayvan Zainabadi, Agnieszka Czopik, Leonard Guarente, and Victor Nizet. “Myeloid Cell Sirtuin-1 Expression Does Not Alter Host Immune Responses to Gram-Negative Endotoxemia or Gram-Positive Bacterial Infection.” Edited by Michael B. Fessler. PLoS ONE 8, no. 12 (December 26, 2013): e84481.
Version: Final published version
ISSN
1932-6203

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