HE Xudong,SONG Chengzhu,NI Haoyu,et al.Improvement mechanism study of kushenol F on ulcerative colitis mice by regulating gut microbiota and immune response[J].ZHONGGUO YAOFANG,2024,35(17):2088-2095.
HE Xudong,SONG Chengzhu,NI Haoyu,et al.Improvement mechanism study of kushenol F on ulcerative colitis mice by regulating gut microbiota and immune response[J].ZHONGGUO YAOFANG,2024,35(17):2088-2095. DOI: 10.6039/j.issn.1001-0408.2024.17.06.
Improvement mechanism study of kushenol F on ulcerative colitis mice by regulating gut microbiota and immune response
To explore the action mechanism of kushenol F (KSCF) in treating ulcerative colitis (UC) in mice.
METHODS
2
The potential targets of KSCF intervening in UC were predicted with network pharmacology and molecular docking. C57BL/6J mice were randomly divided by body weight into model group, positive control group (sulfasalazine, 703 mg/kg), KSCF group (100 mg/kg), and normal group, with 6 mice per group. The UC model of mice was induced by dextran sulfate sodium solution. During the modeling period, the mice were given relevant medicine intragastrically, once a day, for 7 consecutive days. After the last administration, the disease activity index (DAI) of the mice was scored; the length of the mice’s colon was measured; pathological changes in the colon tissue of mice were observed; the levels of lipopol
ysaccharide (LPS) in serum, myeloperoxidase (MPO), nitric oxide (NO) and superoxide dismutase (SOD) in the colon were detected in mice; the expression levels of occludin and ZO-1 in colon tissue of mice were detected; the proportions of CD3
+
T, CD4
+
T, and CD8
+
T lymphocytes in the spleen and the ratio of CD4
+
/CD8
+
were detected; changes in colonic microbiota were analyzed by 16S rDNA sequencing.
RESULTS
2
Results of network pharmacology indicated that KSCF may treat UC by regulating signaling pathways such as phosphatidylinositol-3 kinase/protein kinase B (PI3K/AKT) and nuclear factor kappa B (NF-κB). Molecular docking results showed that KSCF bound most stably with NF-κB p65 protein. Animal experiment results demonstrated that, compared with the model group, the pathological characteristics of colon tissue in mice were improved in KSCF group. DAI scores, serum levels of LPS, the levels of MPO, NF-κB p65 phosphorylation and NLRP3 protein expression in the colon, and the proportion of CD8
+
T lymphocytes in the spleen were reduced significantly (
P
<0.05). Body weight, SOD levels, expression levels of occludin and ZO-1 in the colon, proportions of CD3
+
T and CD4
+
T lymphocytes, and the CD4
+
/CD8
+
ratio in the spleen were significantly increased (
P
<0.05); the abundance of Firmicutes, Actinobacteria
, Akkermansia
, and
Lactobacillus
genera were increased, while Proteobacteria decreased; the microbial community structure tended towards that of the normal group.
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