Dysbiosis-Induced Secondary Bile Acid Deficiency Promotes Intestinal Inflammation.
Dysbiosis-Induced Secondary Bile Acid Deficiency Promotes Intestinal Inflammation.
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DOI:
10.1016/j.chom.2020.01.021
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发表时间:
2020-04-08
影响因子:
30.3
通讯作者:
Habtezion A
中科院分区:
文献类型:
--
作者:
Sinha SR;Haileselassie Y;Nguyen LP;Tropini C;Wang M;Becker LS;Sim D;Jarr K;Spear ET;Singh G;Namkoong H;Bittinger K;Fischbach MA;Sonnenburg JL;Habtezion A
Secondary bile acids (SBAs) are derived from primary bile acids (PBAs) in a process reliant on biosynthetic capabilities possessed by few microbes. To evaluate the role of BAs in intestinal inflammation, we performed metabolomic, microbiome, metagenomic, and transcriptomic profiling of stool from ileal pouches (surgically created resevoirs) in colectomy-treated patients with ulcerative colitis (UC) versus controls (familial adenomatous polyposis, FAP). We show relative to FAP, UC pouches have reduced levels of lithocholic acid and deoxycholic acid (normally the most abundant gut SBAs), genes required to convert PBAs to SBAs, and Ruminococcaceae (one of few taxa known to include SBA-producing bacteria). In three murine colitis models, SBA supplementation reduces intestinal inflammation. This anti-inflammatory effect is in part dependent on the TGR5 bile acid receptor. These data suggest that dysbiosis induces SBA deficiency in inflammatory-prone UC patients, which promotes a pro-inflammatory state within the intestine that may be treated by SBA restoration. Secondary bile acids (SBAs) are some of the most concentrated bacterially-derived gut metabolites. Sinha et al. find UC pouch patients have reduced SBAs and Ruminococcaceae (one of few SBA-producing taxa) compared to FAP-control patients. In colitis models, SBAs ameliorate disease in a process reliant on the TGR5 bile acid receptor.
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影响因子:
3.7
作者:
Chassaing B;Srinivasan G;Delgado MA;Young AN;Gewirtz AT;Vijay-Kumar M
通讯作者:
Vijay-Kumar M
影响因子:
14.8
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DOI:
10.1152/ajpgi.00027.2007
发表时间:
2007-07-01
影响因子:
4.5
作者:
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DOI:
10.1016/j.bbalip.2007.10.008
发表时间:
2008-01-01
影响因子:
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作者:
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通讯作者:
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