期刊
JOURNAL OF EXPERIMENTAL MEDICINE
卷 216, 期 10, 页码 2378-2393出版社
ROCKEFELLER UNIV PRESS
DOI: 10.1084/jem.20181939
关键词
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资金
- National Institutes of Health [AI118807, AI128151]
- Welch Foundation [I-1969-20180324]
- Burroughs Wellcome Fund [1017880]
- American Cancer Society [RSG-17-048-01-MPC]
- Crohn's and Colitis Foundation of America [454921]
Chronic inflammation and gut microbiota dysbiosis, in particular the bloom of genotoxin-producing E. coli strains, are risk factors for the development of colorectal cancer. Here, we sought to determine whether precision editing of gut microbiota metabolism and composition could decrease the risk for tumor development in mouse models of colitis-associated colorectal cancer (CAC). Expansion of experimentally introduced E. coli strains in the azoxymethane/dextran sulfate sodium colitis model was driven by molybdoenzyme-dependent metabolic pathways. Oral administration of sodium tungstate inhibited E. coli molybdoenzymes and selectively decreased gut colonization with genotoxin-producing E. coli and other Enterobacteriaceae. Restricting the bloom of Enterobacteriaceae decreased intestinal inflammation and reduced the incidence of colonic tumors in two models of CAC, the azoxymethane/dextran sulfate sodium colitis model and azoxymethane-treated, Il10-deficient mice. We conclude that metabolic targeting of protumoral Enterobacteriaceae during chronic inflammation is a suitable strategy to prevent the development of malignancies arising from gut microbiota dysbiosis.
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