Human commensal gut Proteobacteria withstand type VI secretion attacks through immunity protein-independent mechanisms.
Human commensal gut Proteobacteria withstand type VI secretion attacks through immunity protein-independent mechanisms.
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DOI:
10.1038/s41467-021-26041-0
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发表时间:
2021-10-01
影响因子:
16.6
通讯作者:
Blokesch M
中科院分区:
文献类型:
--
作者:
Flaugnatti N;Isaac S;Lemos Rocha LF;Stutzmann S;Rendueles O;Stoudmann C;Vesel N;Garcia-Garcera M;Buffet A;Sana TG;Rocha EPC;Blokesch M
While the major virulence factors for Vibrio cholerae, the cause of the devastating diarrheal disease cholera, have been extensively studied, the initial intestinal colonization of the bacterium is not well understood because non-human adult animals are refractory to its colonization. Recent studies suggest the involvement of an interbacterial killing device known as the type VI secretion system (T6SS). Here, we tested the T6SS-dependent interaction of V. cholerae with a selection of human gut commensal isolates. We show that the pathogen efficiently depleted representative genera of the Proteobacteria in vitro, while members of the Enterobacter cloacae complex and several Klebsiella species remained unaffected. We demonstrate that this resistance against T6SS assaults was mediated by the production of superior T6SS machinery or a barrier exerted by group I capsules. Collectively, our data provide new insights into immunity protein-independent T6SS resistance employed by the human microbiota and colonization resistance in general. Here, the authors study the impact of Vibrio cholerae’s T6SS on human gut microbiota isolates and show that certain bacteria are protected from T6SS attacks in an immunity protein-independent manner. Specifically, protection occurred through superior T6SS weaponry in members of the Enterobacter cloacae complex and by molecular armors made of membrane-tethered capsular polysaccharides of diverse Klebsiella isolates.
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DOI:
10.1038/nrmicro3552
发表时间:
2016-01
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
Donaldson GP;Lee SM;Mazmanian SK
通讯作者:
Mazmanian SK
DOI:
10.1038/s41396-020-0726-z
发表时间:
2020-12
期刊:
The ISME journal
影响因子:
--
作者:
de Sousa JAM;Buffet A;Haudiquet M;Rocha EPC;Rendueles O
通讯作者:
Rendueles O
DOI:
10.1126/science.1222981
发表时间:
2012-07-13
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Berk V;Fong JC;Dempsey GT;Develioglu ON;Zhuang X;Liphardt J;Yildiz FH;Chu S
通讯作者:
Chu S
影响因子:
64.5
作者:
Basler M;Ho BT;Mekalanos JJ
通讯作者:
Mekalanos JJ
影响因子:
3.2
作者:
Ferrieres, Lionel;Hemery, Gaelle;Ghigo, Jean-Marc
通讯作者:
Ghigo, Jean-Marc