A gut bacterial pathway metabolizes aromatic amino acids into nine circulating metabolites.
A gut bacterial pathway metabolizes aromatic amino acids into nine circulating metabolites.
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DOI:
10.1038/nature24661
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发表时间:
2017-11-30
期刊:
影响因子:
64.8
通讯作者:
Sonnenburg JL
中科院分区:
文献类型:
--
作者:
Dodd D;Spitzer MH;Van Treuren W;Merrill BD;Hryckowian AJ;Higginbottom SK;Le A;Cowan TM;Nolan GP;Fischbach MA;Sonnenburg JL
The human gut microbiota produces dozens of metabolites that accumulate in the bloodstream, where they can have systemic effects on the host. Although these small molecules commonly reach concentrations similar to those achieved by pharmaceutical agents, remarkably little is known about the microbial metabolic pathways that produce them. Here we use a combination of genetics and metabolic profiling to characterize a pathway from the gut symbiont Clostridium sporogenes that generates aromatic amino acid metabolites. Our results reveal that this pathway produces twelve compounds, nine of which are known to accumulate in host serum. All three aromatic amino acids (tryptophan, phenylalanine and tyrosine) serve as substrates for the pathway, and it involves branching and alternative reductases for specific intermediates. By genetically manipulating C. sporogenes, we modulate serum levels of these metabolites in gnotobiotic mice, and show that in turn this affects intestinal permeability and systemic immunity. This work has the potential to provide the basis of a systematic effort to engineer the molecular output of the gut bacterial community.
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影响因子:
10.7
作者:
Medema MH;Takano E;Breitling R
通讯作者:
Breitling R
影响因子:
30.3
作者:
Martens EC;Chiang HC;Gordon JI
通讯作者:
Gordon JI
影响因子:
64.5
作者:
Sonnenburg ED;Zheng H;Joglekar P;Higginbottom SK;Firbank SJ;Bolam DN;Sonnenburg JL
通讯作者:
Sonnenburg JL
影响因子:
4.8
作者:
Chyan, YJ;Poeggeler, B;Pappolla, MA
通讯作者:
Pappolla, MA
DOI:
10.1126/science.1198704
发表时间:
2011-05-06
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Bendall SC;Simonds EF;Qiu P;Amir el-AD;Krutzik PO;Finck R;Bruggner RV;Melamed R;Trejo A;Ornatsky OI;Balderas RS;Plevritis SK;Sachs K;Pe'er D;Tanner SD;Nolan GP
通讯作者:
Nolan GP