Vancomycin-resistant enterococci exploit antibiotic-induced innate immune deficits.
Vancomycin-resistant enterococci exploit antibiotic-induced innate immune deficits.
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DOI:
10.1038/nature07250
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发表时间:
2008-10-09
期刊:
影响因子:
64.8
通讯作者:
Pamer, Eric G.
中科院分区:
文献类型:
--
作者:
Brandl, Katharina;Plitas, George;Mihu, Coralia N.;Ubeda, Carles;Jia, Ting;Fleisher, Martin;Schnabl, Bernd;DeMatteo, Ronald P.;Pamer, Eric G.
Infection with antibiotic-resistant bacteria, such as vancomycin-resistant Enterococcus (VRE), is a dangerous and costly complication of broad-spectrum antibiotic therapy. How antibiotic-mediated elimination of commensal bacteria promotes infection by antibiotic-resistant bacteria is a fertile area for speculation with few defined mechanisms. Here we demonstrate that antibiotic treatment of mice notably downregulates intestinal expression of RegIIIγ (also known as Reg3g), a secreted C-type lectin that kills Gram-positive bacteria, including VRE. Downregulation of RegIIIγ markedly decreases in vivo killing of VRE in the intestine of antibiotic-treated mice. Stimulation of intestinal Toll-like receptor 4 by oral administration of lipopolysaccharide re-induces RegIIIγ, thereby boosting innate immune resistance of antibiotic-treated mice against VRE. Compromised mucosal innate immune defence, as induced by broad-spectrum antibiotic therapy, can be corrected by selectively stimulating mucosal epithelial Toll-like receptors, providing a potential therapeutic approach to reduce colonization and infection by antibiotic-resistant microbes.
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影响因子:
9.8
作者:
Sonnenburg JL;Chen CT;Gordon JI
通讯作者:
Gordon JI
DOI:
10.1073/pnas.0405979102
发表时间:
2005-01-04
影响因子:
11.1
作者:
Pull, SL;Doherty, JM;Stappenbeck, TS
通讯作者:
Stappenbeck, TS
DOI:
10.1084/jem.20011788
发表时间:
2002-03-04
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Hornef MW;Frisan T;Vandewalle A;Normark S;Richter-Dahlfors A
通讯作者:
Richter-Dahlfors A
影响因子:
11.8
作者:
Donskey, CJ
通讯作者:
Donskey, CJ
影响因子:
64.8
作者:
Nenci, Arianna;Becker, Christoph;Pasparakis, Manolis
通讯作者:
Pasparakis, Manolis