Salmonella-induced mucosal lectin RegIIIβ kills competing gut microbiota.
Salmonella-induced mucosal lectin RegIIIβ kills competing gut microbiota.
复制标题
沙门氏菌诱导的粘膜凝集素regiiiβ杀死了竞争性肠道菌群。
DOI:
10.1371/journal.pone.0020749
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Bumann D
中科院分区:
文献类型:
--
作者:
Stelter C;Käppeli R;König C;Krah A;Hardt WD;Stecher B;Bumann D
Intestinal inflammation induces alterations of the gut microbiota and promotes overgrowth of the enteric pathogen Salmonella enterica by largely unknown mechanisms. Here, we identified a host factor involved in this process. Specifically, the C-type lectin RegIIIβ is strongly upregulated during mucosal infection and released into the gut lumen. In vitro, RegIIIβ kills diverse commensal gut bacteria but not Salmonella enterica subspecies I serovar Typhimurium (S. Typhimurium). Protection of the pathogen was attributable to its specific cell envelope structure. Co-infection experiments with an avirulent S. Typhimurium mutant and a RegIIIβ-sensitive commensal E. coli strain demonstrated that feeding of RegIIIβ was sufficient for suppressing commensals in the absence of all other changes inflicted by mucosal disease. These data suggest that RegIIIβ production by the host can promote S. Typhimurium infection by eliminating inhibitory gut microbiota.
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DOI:
10.1073/pnas.0737682100
发表时间:
2003-04-01
影响因子:
11.1
作者:
Hantke, K;Nicholson, G;Winkelmann, G
通讯作者:
Winkelmann, G
影响因子:
4
作者:
Filho-Lima, JVM;Vieira, EC;Nicoli, JR
通讯作者:
Nicoli, JR
影响因子:
15.3
作者:
BOHNHOFF, M;MILLER, C P;MARTIN, W R
通讯作者:
MARTIN, W R
影响因子:
3.1
作者:
Coburn, B;Li, YL;Finlay, BB
通讯作者:
Finlay, BB
影响因子:
3.1
作者:
Barthel, M;Hapfelmeier, S;Hardt, WD
通讯作者:
Hardt, WD