4.7 Article

Koumiss promotes Mycobacterium bovis infection by disturbing intestinal flora and inhibiting endoplasmic reticulum stress

期刊

FASEB JOURNAL
卷 35, 期 9, 页码 -

出版社

WILEY
DOI: 10.1096/fj.202002485RR

关键词

gut microbiota; gut-lung axis; koumiss; M bovis; tuberculosis

资金

  1. National Natural Science Foundation of China [31873005]
  2. National Key Research and Development Program [2017YFD0500901]
  3. China Agriculture Research System [CARS-36]
  4. MoSTRCUK international cooperation project [2013DFG32500]
  5. High-end Foreign Experts Recruitment Program [GDW20151100036, GDW20161100071]

向作者/读者索取更多资源

The study showed that koumiss treatment led to significant changes in the intestinal flora of mice, while the lungs of koumiss-treated mice exhibited severe edema, inflammatory infiltration, and pulmonary nodules when infected with M bovis. Additionally, the levels of short-chain fatty acids were lower in the koumiss-treated group, but the expression of endoplasmic reticulum stress and apoptosis-related proteins in the lungs was significantly reduced.
Mycobacterium bovis is the causative agent of bovine tuberculosis and also responsible for serious threat to public health. Koumiss is a fermented mare's milk product, used as traditional drink. Here, we explored the effect of koumiss on gut microbiota and the host immune response against M bovis infection. Therefore, mice were treated with koumiss and fresh mare milk for 14 days before M bovis infection and continue for 5 weeks after infection. The results showed a clear change in the intestinal flora of mice treated with koumiss, and the lungs of mice treated with koumiss showed severe edema, inflammatory infiltration, and pulmonary nodules in M bovis-infected mice. Notably, we found that the content of short-chain fatty acids was significantly lower in the koumiss-treated group compared with the control group. However, the expression of endoplasmic reticulum stress and apoptosis-related proteins in the lungs of koumiss-treated mice were significantly decreased. Collectively, these findings suggest that koumiss treatment disturb the intestinal flora of, which is associated with disease severity and the possible mechanism that induces lungs pathology. Our current findings can be exploited further to establish the gut-lung axis which might be a novel strategy for the control of tuberculosis.

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