B cell-intrinsic MyD88 signaling prevents the lethal dissemination of commensal bacteria during colonic damage.
B cell-intrinsic MyD88 signaling prevents the lethal dissemination of commensal bacteria during colonic damage.
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DOI:
10.1016/j.immuni.2011.11.019
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发表时间:
2012-02-24
期刊:
影响因子:
32.4
通讯作者:
Yarovinsky F
中科院分区:
文献类型:
--
作者:
Kirkland D;Benson A;Mirpuri J;Pifer R;Hou B;DeFranco AL;Yarovinsky F
The Toll-like receptor adaptor protein MyD88 is essential for the regulation of intestinal homeostasis in mammals. In this study, we determined that Myd88-deficient mice are susceptible to colonic damage that is induced by dextran sulfate sodium (DSS) administration due to uncontrolled dissemination of intestinal commensal bacteria. The DSS-induced mortality of Myd88-deficient mice was completely prevented by antibiotic treatment to deplete commensal bacteria. By using cell type-specific Myd88-deficient mice, we established that B cell-intrinsic MyD88 signaling plays a central role in the resistance to DSS-induced colonic damage via the production of IgM and complement-mediated control of intestinal bacteria. Our results indicate that the lack of intact MyD88 signaling in B cells, coupled with impaired epithelial integrity, enables commensal bacteria to function as highly pathogenic organisms, causing rapid host death.
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影响因子:
64.8
作者:
Cella, Marina;Fuchs, Anja;Vermi, William;Facchetti, Fabio;Otero, Karel;Lennerz, Jochen K. M.;Doherty, Jason M.;Mills, Jason C.;Colonna, Marco
通讯作者:
Colonna, Marco
影响因子:
30.3
作者:
Benson A;Pifer R;Behrendt CL;Hooper LV;Yarovinsky F
通讯作者:
Yarovinsky F
影响因子:
32.4
作者:
Hou, Baidong;Reizis, Boris;DeFranco, Anthony L.
通讯作者:
DeFranco, Anthony L.
影响因子:
32.4
作者:
Hou B;Saudan P;Ott G;Wheeler ML;Ji M;Kuzmich L;Lee LM;Coffman RL;Bachmann MF;DeFranco AL
通讯作者:
DeFranco AL
影响因子:
29.7
作者:
Cerutti A;Chen K;Chorny A
通讯作者:
Chorny A