期刊
BIOMEDICINE & PHARMACOTHERAPY
卷 141, 期 -, 页码 -出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.biopha.2021.111896
关键词
GeGen QinLian decoction; Influenza virus; Intestinal flora; Traditional Chinese Medicine (TCM); NOD (nucleotide-binding and oligomerization domain) and leucine rich repeat containing receptor (NLR)
资金
- National Natural Science Foundation of China [81830114, 81774164, 82004232]
- Natural Science Foundation of Guangdong, China [2020A1515010756, 2021A1515011215]
- Project of Administration of Traditional Chinese Medicine of Guangdong Province [20201074]
- Keypoint research and invention program of Guangdong Province [2020B1111100010]
The study demonstrates that GeGen QinLian decoction may act through multiple targets and pathways to treat influenza, by regulating intestinal flora, reducing mortality and lung inflammation in infected mice. The treatment restores the intestinal flora, inhibits inflammatory signaling pathways, affects inflammatory cytokine expression, and provides systemic protection against influenza virus infectious pneumonia.
Influenza in humans is often accompanied by gastroenteritis-like symptoms. GeGen QinLian decoction (GQD), a Chinese herb formula, has been widely used to treat infectious diarrhea for centuries and has the effect of restoring intestinal flora. Studies have also reported that GQD were used to treat patients with influenza. However, whether regulating the intestinal flora is one of the ways GQD treats influenza has not been confirmed. In present research, we conducted a systemic pharmacological study, and the results showed that GQD may acts through multiple targets and pathways. In influenza-infected mice, GQD treatment reduced mortality and lung inflammation. Most importantly, the mortality and lung inflammation were also reduced in influenza-infected mice that have undergone fecal microbiota transplantation (FMT) from GQD (FMT-GQD) treated mice. GQD treatment or FMT-GQD treatment restores the intestinal flora, resulting in an increase in Akkermansia_muciniphella, Desulfovibrio_C21_c20 and Lactobacillus_salivarius, and a decrease in Escherichia_coli. FMT-GQD treatment inhibited the NOD/RIP2/NF-kappa B signaling pathway in the intestine and affected the expression of downstream related inflammatory cytokines in mesenteric lymph nodes (mLNs) and serum. In addition, FMT-GQD treatment showed systemic protection by restraining the inflammatory differentiation of CD4(+) T cells. In conclusion, our study shows that GQD can affect systemic immunity, at least in part, through the intestinal flora, thereby protect the mice against influenza virus infectious pneumonia.
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