Résumé
Objective The objective of this study was to investigate the role and molecular mechanism of AtractylenolideⅠin the progression of lung cancer. Methods qRT-qPCR and immunohistochemistry were used to detect the expression of TLR4 and MyD88 at levels of mRNA and protein in lung cancer and adjacent tissues. Transwell and MTT assays were used to detect effects of at-ractylenolide I(100 μM)on the invasion,migration and proliferation of A549 cells. Western blot was also used to detect the effect of atractylenolide I on the expression of TLR4 and MyD88 proteins. Results The expression of TLR4 and MyD88 at levels of mRNA and protein was highly expressed in lung cancer tissues when compared to adjacent tissues(P<0. 05). Compared with the control group,the invasion ability of A549 cells in the Atractylenolide I group was significantly decreased,and the proliferative activity was in-hibited(P<0. 05). Atractylenolide I inhibited the expression of TLR4 and MyD88 protein in A549 cells( P<0. 05). Conclusion