Collinsella aerofaciens Produces a pH-Responsive Lipid Immunogen.
Collinsella aerofaciens Produces a pH-Responsive Lipid Immunogen.
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DOI:
10.1021/jacs.3c00250
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发表时间:
2023-04-05
影响因子:
15
通讯作者:
Clardy, Jon
中科院分区:
文献类型:
--
作者:
Kwon, Jaeyoung;Bae, Munhyung;Szamosvari, David;Cassilly, Chelsi D.;Bolze, Andrew S.;Jackson, David R.;Xavier, Ramnik J.;Clardy, Jon
Some members of the human gut microbiota profoundly influence their host’s physiology, health, and therapeutic responses, but the responsible molecules and mechanisms are largely unknown. As part of a project to identify immunomodulators produced by gut microbes, we analyzed the metabolome of Collinsella aerofaciens, an actinomycete that figures prominently in numerous association studies. The associations are typically positive correlations of C. aerofaciens with pro-inflammatory responses and undesirable outcomes, but an association with favorable responses to PD-1/PD-L1 cancer immunotherapy is a notable exception. A phenotypic assay-guided screen using dendritic cells (mBMDCs) and cytokine readouts identified the active compound, which was structurally characterized as a lysoglycoglycerolipid with an acetal-bearing β-galactofuranose head group (CaLGL-1, 1). The structural assignment was confirmed through total synthesis. Assays with tlr2–/–, tlr4–/–, and wt mBMDCs revealed TLR2-dependent signaling. CaLGL-1 is produced by a conversion of a bacterially biosynthesized plasmalogen (CaPlsM, 3) to CaLGL-1 (1) in a low-pH environment.
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影响因子:
30.3
作者:
Shen Y;Giardino Torchia ML;Lawson GW;Karp CL;Ashwell JD;Mazmanian SK
通讯作者:
Mazmanian SK
影响因子:
78.8
作者:
Routy, Bertrand;Gopalakrishnan, Vancheswaran;Kroemer, Guido
通讯作者:
Kroemer, Guido
DOI:
10.1126/science.aao3290
发表时间:
2018-01-05
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Matson V;Fessler J;Bao R;Chongsuwat T;Zha Y;Alegre ML;Luke JJ;Gajewski TF
通讯作者:
Gajewski TF
影响因子:
32.4
作者:
Kang, Jin Young;Nan, Xuehua;Lee, Jie-Oh
通讯作者:
Lee, Jie-Oh
影响因子:
24.5
作者:
Joossens, Marie;Huys, Geert;Vermeire, Severine
通讯作者:
Vermeire, Severine