LIU Shasha,CHEN Jing,LIU Sina,et al.Effect of Xifeng Zhidong Decoction on inflammatory reaction of microglia induced by lipopolysaccharide in mice[J].Shanghai Journal of Traditional Chinese Medicine,2022,56(7):89-96.
LIU Shasha,CHEN Jing,LIU Sina,et al.Effect of Xifeng Zhidong Decoction on inflammatory reaction of microglia induced by lipopolysaccharide in mice[J].Shanghai Journal of Traditional Chinese Medicine,2022,56(7):89-96. DOI: 10.16305/j.1007-1334.2022.2010113.
Effect of Xifeng Zhidong Decoction on inflammatory reaction of microglia induced by lipopolysaccharide in mice
Objective,2,To explore the effect of Xifeng Zhidong Decoction on inflammatory reaction of mouse microglia (BV-2 cells) induced by lipopolysaccharide (LPS).,Methods,2,The microglia of mice were divided into three groups: control group, LPS group and Xifeng Zhidong Decoction group. The DMEM medium was added to the control group. LPS was used to induce inflammation on microglia at a concentration of 0.1 mg·L,-1, in the LPS group, and intervention was performed by Xifeng Zhidong Decoction with a concentration of 12.5, 25, 50, 100, 200 and 400 mg·L,-1 ,respectively in the Xifeng Zhidong Decoction group. The effect of Xifeng Zhidong Decoction on the viability of microglia was observed by cell proliferative toxicity test (CCK-8). The level of nitric oxide (NO) in the supernatant was detected by enzyme linked immunosorbent assay (ELISA), and the expression of inflammatory factors in microglia was detected by fluorescence quantitative polymerase chain reaction (real-time PCR). Western blot and immunofluorescence staining were used to detect the expression of nitric oxide-induced synthase (iNOS) and arginine-1 (Arg-1) proteins.,Results,2,There was no significant effect on the activity of microglia in different doses of Xifeng Zhidong group or LPS group (,P,>,0.05). Compared with the control group, the NO content in microglia supernatant of the LPS group increased significantly(,P,<,0.001); the mRNA expression of ,TNF,-,α,, ,IL,-,6,, ,IL,-,1β, of M1 type microglia increased significantly(,P,<,0.001), but the mRNA expression of ,TGF,-,β, of M2 type microglia decreased (,P,<,0.05) ; the protein expression of M1 marker iNOS increased (,P,<,0.01), but the expression of M2 marker Arg-1 protein decreased (,P,<,0.05). Compared with the LPS group, Xifeng Zhidong Decoction at 100, 200, and 400 mg·L,-1, could significantly inhibit the release of NO(,P,<,0.001), decrease the expression of ,TNF,-,α, IL,-,6, mRNA of M1 type microglia(,P,<,0.001, ,P,<,0.05). Xifeng Zhidong Decoction increased the expression of ,IL,-,10, and ,TGF,-,β ,mRNA of M2 type microglia at 400 mg·L,-1,(,P,<,0.05), reduced the expression of M1 type marker iNOS protein at 200 mg·L,-1, (,P,<,0.01), and increased the expression of M2 type marker Arg-1 protein at 100 mg·L,-1, (,P,<,0.05).,Conclusion,2,Xifeng Zhidong Decoction can inhibit the transformation of microglia to M1 damaged type induced by LPS, and promote the transformation to M2 repair type.
关键词
抽动障碍熄风制动汤小胶质细胞脂多糖炎症反应中药研究
Keywords
tic disorderXifeng Zhidong Decoctonmicrogliallipopolysaccharideinflammatory reactiontraditional Chinese herbal medicine research
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