Rapamycin and MCC950 modified gut microbiota in experimental autoimmune encephalomyelitis mouse by brain gut axis.

Abstract:

AIMS:Multiple sclerosis (MS) whose pathogenesis is still unclear is a chronic progressive disease in the central nervous system. Gut microbiota can directly or indirectly affect the immune system through the brain gut axis to engage in the occurrence and development of the disease. MATERIALS AND METHODS:C57BL/6 mice which were immunized by MOG35-55 to prepare experimental autoimmune encephalomyelitis (EAE) animal models were treated with rapamycin and MCC950 (CP-456773) in combination or separately. After sequencing the 16S rRNA V4 region of gut microbiota, the species, abundance and composition of gut microbiota were analyzed by Alpha diversity, Bata diversity and LEfSe analysis. The pathological changes and the expression of CD4 and CD8 of brain, large intestine and spleen were detected. KEY FINDINGS:The results showed that rapamycin and MCC950 could alleviate the progression of the disease by inducing autophagy and inhibiting the immune response. The Alpha diversity of EAE model group was no significant difference compering to control group while the number of OTUs was decreased. After the treatment by rapamycin and MCC950, the abundance and composition of gut microbiota was relatively recovered, which was close to that of normal mice. SIGNIFICANCE:Inhibiting immune cell-mediated inflammation and restoring the composition of gut microbiota may help to alleviate the clinical symptoms of multiple sclerosis. Furthermore, to research the regulatory effect between immune response and gut microbiota may be a new strategy for the prevention and treatment of multiple sclerosis.

journal_name

Life Sci

journal_title

Life sciences

authors

Xu L,Zhang C,He D,Jiang N,Bai Y,Xin Y

doi

10.1016/j.lfs.2020.117747

subject

Has Abstract

pub_date

2020-07-15 00:00:00

pages

117747

eissn

0024-3205

issn

1879-0631

pii

S0024-3205(20)30495-1

journal_volume

253

pub_type

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