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Intervention Effects of Berberine on Mice Macrophage Polarization Based on TLR 4/MyD88/NF-κB Signaling Pathway / 中国药房
China Pharmacy ; (12): 1804-1809, 2020.
Article in Chinese | WPRIM | ID: wpr-823348
ABSTRACT
OBJECTIVE:To study the effects of berberine on mic e macrophage polarization based on TLR 4-MyD88-NF-κB signaling pathway. METHODS :Using mice RAW 264.7 macrophage as the object ,atorvastatin calcium as positive control , inflammatory cell model was induced by lipopolysaccharide (LPS);ELISA method was used to detect the contents of TNF-α,IL-6 and NF-κB in cell culture medium after treated with low,medium and high doses of berberine (5,10,20 μmol/L)for 24 h. The real-time fluorescence quantitative PCR was conducted to determine the mRNA expression of TLR 4 and MyD 88 in cells. Western blotting assay was used to detect the protein expression of TLR 4,MyD88,iNOS and CD 206 in cells. RESULTS :Compared with blank control group ,the contents of TNF-α,IL-6 and NF-κB in cell culture medium,mRNA expression of TLR 4 and MyD 88, protein expression of TLR 4,MyD88 and iNOS in cells were increased significantly in LPS induction group (P<0.05). Compared with LPS induction group ,the contents of TNF-α and IL-6mRNA and protein expression of TLR 4 and MyD 88 in atorvastatin calcium group ,berberine medium-dose and high-dose groupsas well as the content of NF-κ B and protein expression of iNOS in administration groups were decreased significantly , while the content of NF-κB in berberine high-dose group was significantly lower than atorvastatin calcium group (P<0.05). The protein expressions of CD206 in atorvastatin calcium group and berberine high-dose group were increased significantly ,while the protein expression of CD 206 in berberine high-dose group was significantly higher than atorvastatin calcium group (P<0.05). CONCLUSIONS :Different doses of berberine can intervene in mice macrophage polarization to different extents ,the mechanism of which may be associated with the regulation of TLR4/MyD88/NF-κB signaling pathway.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Pharmacy Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Pharmacy Year: 2020 Type: Article