Author:
Wang Feng,Yin Qian,Chen Liang,Davis Mark M.
Abstract
Antibodies that attenuate immune tolerance have been used to effectively treat cancer, but they can also trigger severe autoimmunity. To investigate this, we combined anti–CTLA-4 treatment with a standard colitis model to give mice a more severe form of the disease. Pretreatment with an antibiotic, vancomycin, provoked an even more severe, largely fatal form, suggesting that a Gram-positive component of the microbiota had a mitigating effect. We then found that a commonly used probiotic, Bifidobacterium, could largely rescue the mice from immunopathology without an apparent effect on antitumor immunity, and this effect may be dependent on regulatory T cells.
Funder
Howard Hughes Medical Institute
Parker Foundation
Publisher
Proceedings of the National Academy of Sciences
Cited by
148 articles.
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