NDLI: Nod1/Nod2-Mediated Recognition Plays a Critical Role in Induction of Adaptive Immunity to Anthrax after Aerosol Exposure▿

Content Provider	PubMed Central
Author	Loving, Crystal L. Osorio, Manuel Kim, Yun-gi Nuñez, Gabriel Hughes, Molly A. Merkel, Tod J.
Abstract	Toll-like receptors and Nod-like receptors (NLR) play an important role in sensing invading microorganisms for pathogen clearance and eliciting adaptive immunity for protection against rechallenge. Nod1 and Nod2, members of the NLR family, are capable of detecting bacterial peptidoglycan motifs in the host cytosol for triggering proinflammatory cytokine production. In the current study, we sought to determine if Nod1/Nod2 are involved in sensing Bacillus anthracis infection and eliciting protective immune responses. Using mice deficient in both Nod1 and Nod2 proteins, we showed that Nod1/Nod2 are involved in detecting B. anthracis for production of tumor necrosis factor alpha, interleukin-1α (IL-1α), IL-1β, CCL5, IL-6, and KC. Proinflammatory responses were higher when cells were exposed to viable spores than when they were exposed to irradiated spores, indicating that recognition of vegetative bacilli through Nod1/Nod2 is significant. We also identify a critical role for Nod1/Nod2 in priming responses after B. anthracis aerosol exposure, as mice deficient in Nod1/Nod2 were impaired in their ability to mount an anamnestic antibody response and were more susceptible to secondary lethal challenge than wild-type mice.
Related Links	http://dx.doi.org/10.1128/IAI.00563-09
Starting Page	4529
File Format	PDF
ISSN	10985522
e-ISSN	10985522
Journal	Infection and Immunity
Issue Number	10
Volume Number	77
Language	English
Publisher	American Society for Microbiology (ASM)
Publisher Date	2009-10-01
Access Restriction	Open
Rights Holder	American Society for Microbiology (ASM)
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Infectious Diseases Parasitology Immunology Microbiology

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