Strength Exercise Confers Protection in Central Nervous System Autoimmunity by Altering the Gut Microbiota.

Strength Exercise Confers Protection in Central Nervous System Autoimmunity by Altering the Gut Microbiota.
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DOI:
10.3389/fimmu.2021.628629
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发表时间:
2021
影响因子:
7.3
通讯作者:
Chen X
Chen X
中科院分区:
医学2区
文献类型:
--
作者:
Chen H;Shen L;Liu Y;Ma X;Long L;Ma X;Ma L;Chen Z;Lin X;Si L;Chen X

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运动疗法包括耐力训练和抗阻训练,是治疗多发性硬化症(MS)的一种很有前途的非药物疗法。最近的研究表明,运动对肠道微生物群产生有益的影响。然而,肠道微生物群在中枢神经系统(CNS)自身免疫中的力量运动(SE;阻力训练之一)的免疫益处中的作用几乎不为人所知。在此,我们观察到60分钟SE改善了实验性自身免疫性脑脊髓炎(EAE)(MS的动物模型)的疾病严重程度和神经病理学。SE增加了肠道微生物群的丰度和多样性,降低了厚壁菌门/拟杆菌门比率(F/B比率)和肠粘膜通透性,并富集了几种产生短链脂肪酸(SCFA)的细菌。此外,SE降低了小肠淋巴组织中的Th 17应答,并增加了Treg应答。与对照组相比,接受SE微生物组粪便移植的微生物耗尽小鼠的疾病严重程度和神经病理学评分较低。这些结果揭示了SE在神经免疫调节作用中的保护作用,部分是通过改变肠道微生物组实现的。
Exercise therapy including endurance training and resistance training is a promising non-pharmacological therapy in patients with multiple sclerosis (MS). Recent studies have revealed that exercise exerts beneficial impacts on gut microbiota. However, the role of gut microbiota in the immune benefits of strength exercise (SE; one of resistance training) in central nervous system (CNS) autoimmunity is barely known. Here, we observed that 60-min SE ameliorated disease severity and neuropathology in experimental autoimmune encephalomyelitis (EAE), an animal model of MS. SE increased the abundance and diversity of the gut microbiota, and decreased Firmicutes/Bacteroidetes ratio (F/B ratio) and intestinal mucosal permeability, and enrichment of several short-chain fatty acid (SCFA)-producing bacteria. Furthermore, SE reduced Th17 responses and increased Treg responses in the small intestine lymphoid tissues. Compared to the control group, microbiota-depleted mice receiving SE microbiome fecal transplants had lower disease severity and neuropathology scores. These results uncovered a protective role of SE in neuroimmunomodulation effects partly via changes to the gut microbiome.
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