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Gut microbiome alterations and its link to corticosteroid resistance in immune thrombocytopenia 被引量:6

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摘要 Quantitative metagenomic studies have linked the gut microbiota to autoimmune disorders.Here,we performed deep shotgun metagenomic sequencing of fecal samples from 99 immune thrombocytopenia(ITP)patients and 52 healthy controls.Dysbiosis in the gut microbiome of ITP was detected phylogenetically and functionally,and classifier based on species markers distinguished individuals with ITP from healthy controls.In particular,the abundance of Ruminococcus gnavus,Bifidobacterium longum and Akkermansia muciniphila was markedly increased in treatment-na?ve ITP patients,and the alterations of microbial species were correlated with clinical indices.Functionally,the secondary bile acid biosynthesis and flagellar assembly were depleted in the gut microbiota of ITP,which may contribute to the onset of ITP by affecting the immune system.Furthermore,we found that corticosteroid treatment affected the gut microbiome of ITP.Compared with corticosteroid-sensitive ITP patients,we identified that the corticosteroid-resistant ITP patients displayed a distinct gut microbiome,which was different from that of the treatment-na?ve ITP patients.Together,we provided support for the critical role of gut microbiota in the development of ITP and established a foundation for further research characterizing gut microbiota in relation to corticosteroid resistance of ITP.
出处 《Science China(Life Sciences)》 SCIE CAS CSCD 2021年第5期766-783,共18页 中国科学(生命科学英文版)
基金 Beijing Municipal Science and Technology Commission(Z171100001017084) Natural Science Foundation of Beijing Municipality(7171013 and H2018206423) Key Program of National Natural Science Foundation of China(81730004) the National Natural Science Foundation of China(81670116 and 81970113) National Key Research and Development Program of China(2017YFA0105503)。
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