Infection-induced type I interferons activate CD11b on B-1 cells for subsequent lymph node accumulation.
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Authors
Waffarn, Elizabeth EHastey, Christine J
Dixit, Neha
Soo Choi, Youn
Cherry, Simon
Kalinke, Ulrich

Simon, Scott I
Baumgarth, Nicole
Issue Date
2015
Metadata
Show full item recordAbstract
Innate-like B-1a lymphocytes rapidly redistribute to regional mediastinal lymph nodes (MedLNs) during influenza infection to generate protective IgM. Here we demonstrate that influenza infection-induced type I interferons directly stimulate body cavity B-1 cells and are a necessary signal required for B-1 cell accumulation in MedLNs. Vascular mimetic flow chamber studies show that type I interferons increase ligand-mediated B-1 cell adhesion under shear stress by inducing high-affinity conformation shifts of surface-expressed integrins. In vivo trafficking experiments identify CD11b as the non-redundant, interferon-activated integrin required for B-1 cell accumulation in MedLNs. Thus, CD11b on B-1 cells senses infection-induced innate signals and facilitates their rapid sequester into secondary lymphoid tissues, thereby regulating the accumulation of polyreactive IgM producers at sites of infection.Citation
Infection-induced type I interferons activate CD11b on B-1 cells for subsequent lymph node accumulation. 2015, 6:8991 Nat CommunAffiliation
Twincore Centre of Experimental and Clinical Infection Research; a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research, Hannover 30625, Germany.Journal
Nature communicationsPubMed ID
26612263Type
ArticleLanguage
enISSN
2041-1723ae974a485f413a2113503eed53cd6c53
10.1038/ncomms9991
Scopus Count
The following license files are associated with this item:
- Creative Commons
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-sa/4.0/
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