Palmatine attenuates LPS-induced inflammatory response in mouse mammary epithelial cells through inhibiting ERK1/2, P38 and Akt/NF-кB signalling pathways |
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Authors: | He Ma Yufei Zhang Jiaxin Wang Wenjin Guo Guiqiu Hu Shengnan Xie Zhanqing Yang Juxiong Liu Shoupeng Fu |
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Institution: | College of Veterinary Medicine, Jilin University, Changchun, China |
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Abstract: | Palmatine has a wide range of pharmacological effects and anti-inflammatory function. However, the effect of palmatine on LPS-induced inflammatory response of mammary epithelial cells has not been reported. In this research, we studied the anti-inflammatory mechanism of palmatine in EpH4-Ev (mouse mammary epithelial cells). EpH4-Ev cells were pre-treated with palmatine and then incubated with LPS. Cells were collected for examining production of pro-inflammatory mediators by qRT-PCR, and the related inflammatory signalling pathway was detected through immunofluorescence and Western blot. The results found that palmatine could significantly reduce the expression of IL-6, TNF-α, IL-1β and COX-2 in EpH4-Ev cells. Research on mechanisms found that palmatine could significantly inhibit the protein levels of p-Akt, p-P65, p-ERK1/2 and p-P38 in EpH4-Ev cells. In conclusion, these data suggested that palmatine inhibits inflammatory response in LPS-induced EpH4-Ev cells via down-regulating Akt/ NF-кB, ERK1/2 and P38 signalling pathways. |
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Keywords: | Akt/NF-кB ERK1/2 inflammatory response P38 palmatine |
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