Abstract
This study aimed to explore the effects of atractylodin (ATR) on lipopolysaccharide (LPS)-induced inflammatory response in human airway epithelial cells. The cytotoxicity was assessed by CCK-8 assay. The mRNA expression and concentration of interleukin (IL)-6, IL-8, and mucin 5AC (MUC5AC) were measured by qRT-PCR and ELISA, respectively. Western blotting was performed to determine protein expression. We found that LPS stimulation increased the mRNA expression and concentrations of IL-6, IL-8, and MUC5AC, as well as the expression of Col-I and FN in 16HBE cells, but this effect of LPS was attenuated by ATR treatment. Mechanistically, ATR suppressed LPS-induced activation of the NF-κB pathway in 16HBE cells. Moreover, ATR repressed ovalbumin-induced airway inflammation and NF-kB pathway in mice. In conclusion, ATR attenuated the expression of MUC5AC and ECM in LPS-induced airway inflammation by inhibiting the NF-κB pathway.
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