肠道微生物群有助于小鼠心血管炎症和血管炎的发展
Prasant K Jena1,2, Daiko Wakita1,2, Angela C Gomez1,2
1Division of Infectious Diseases and Immunology, Department of Pediatrics, Guerin Children's at Cedars-Sinai Medical Center, Los Angeles, CA (P.K.J., D.W., A.C.G., T.T.C., A.E.A., E.A., M.N., Y.L., S.C., K.S., T.R.C., M.A., M.N.R.).
Circulation research
|March 3, 2025
概括
肠道细菌的变化会影响川崎病 (KD) 血管炎. 恢复特定的细菌,如Akkermansia muciniphila和Faecalibacterium prausnitzii,或它们的代谢物,在小鼠模型中减少了心血管炎症.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 心血管研究研究心血管研究
背景情况:
- 肠道微生物群的改变与心血管疾病有关.
- 肠道微生物群在儿童血管炎 - - 川崎病 (KD) 发病过程中的具体作用尚不清楚.
研究的目的:
- 在KD的小鼠模型中调查肠道微生物群对血管炎症发展的贡献.
- 为了识别可能调节KD血管炎的特定肠道细菌及其产物.
主要方法:
- 使用了乳杆菌casei细胞壁提取物 (LCWE) KD血管炎的小鼠模型.
- 评估了微生物群贫乏的小鼠血管炎的严重程度,并使用16S rRNA基因测序来表征便微生物组.
- 用口服治疗,包括活体/消毒细菌,短链脂肪酸和Amuc_1100 (来自Akkermansia muciniphila),以评估其影响.
主要成果:
- 在KD小鼠模型中,消耗肠道微生物群减少了心血管炎症.
- 心血管病变与改变的微生物群相关,特别是减少了Akkermansia muciniphila和Faecalibacterium prausnitzii.
- 补充这些细菌,它们的短链脂肪酸,或Amuc_1100减弱了血管炎症和免疫细胞透.
结论:
- 一个肠道微生物群-心血管炎症轴与KD病变发生有关.
- 特定的共生细菌,它们的代谢物和细胞外蛋白质通过支持肠道屏障功能来调节血管炎.
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