Mammalian Cell Entry domains are required for bile resistance and virulence in Salmonella
Mammalian Cell Entry domains are required for bile resistance and virulence in Salmonella
复制标题
沙门氏菌的胆汁抗性和毒力需要哺乳动物细胞进入结构域
DOI:
10.1101/263871
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Isom G
中科院分区:
文献类型:
--
作者:
Isom G
MCE domains were first reported inMycobacteriaas having a role inMammalianCellEntry, with subsequent studies showing their importance during infection. Here, we have examined the function of MCE proteins inSalmonellaTyphimurium during mammalian infection. We report that MCE proteins are required forSalmonellavirulence, but that this is not related to decreased adherence, entry or survival in mammalian cells. Instead, we reveal that MCE proteins are required forSalmonellabile resistance, in particular to withstand bile salts such as cholate and deoxycholate. Based on our previous work inEscherichia coli, and other studies that have reported roles for MCE proteins in membrane biogenesis, we propose thatSalmonellalacking MCE domains have a defective outer membrane that results in bile sensitivity and decreased virulencein vivo. These results suggest that MCE domains mediate fundamental aspects of bacterial membrane physiology as opposed to a proposed direct role in mammalian cell entry, explaining their conservation across both pathogenic and non-pathogenic bacteria.
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影响因子:
3.2
作者:
Antunes, L. Caetano M.;Andersen, Sarah K.;Finlay, B. Brett
通讯作者:
Finlay, B. Brett
影响因子:
56.9
作者:
ARRUDA, S;BOMFIM, G;RILEY, LW
通讯作者:
RILEY, LW
影响因子:
4.2
作者:
Saini NK;Sharma M;Chandolia A;Pasricha R;Brahmachari V;Bose M
通讯作者:
Bose M
DOI:
10.1016/j.tube.2009.10.004
发表时间:
2010-01
期刊:
Tuberculosis (Edinburgh, Scotland)
影响因子:
--
作者:
Marjanovic O;Miyata T;Goodridge A;Kendall LV;Riley LW
通讯作者:
Riley LW
影响因子:
3
作者:
Senaratne, Ryan H.;Sidders, Ben;Riley, Lee W.
通讯作者:
Riley, Lee W.