IL10 and inflammatory bowel disease: Although a contradictory research indicated A. muciniphila was sufficient for promoting intestinal inflammation in both specific-pathogen-free and germ-free IL10(− / −) mice model of IBD (Seregin et al., 2017), in a follow-up study, A. muciniphila strain ATCC BAA-835 was examined in gnotobiotic IL10(−/−) mice, and it did not promote short-term intestinal inflammation (Ring et al., 2019).