Mechanism of IL-17A induced the secretion of CXCL12 in non-small cell lung cancer cell line A549

VernacularTitle:IL-17 A诱导非小细胞肺癌A549细胞分泌CXCL12的机制研究
Author: Ying HU ; Ying HUANG ; Yonghong YANG
Keywords: IL-17A; CXCL12; STAT3 signal; non-small cell tumor; A549 cell
From: Journal of Regional Anatomy and Operative Surgery 2017;26(1):9-12
CountryChina
Language:Chinese
Abstract: Objective To study the molecular mechanism of IL-17A induced the secretion of CXCL 12 in non-small cell lung cancer cell line A549.Methods Cultured non-small cell lung cancer cell line A549 in vitro with recombination cytokine IL-17A or STAT3 signal path-way inhibitor pre-incubated for 1 hour, and then the level of CXCL12 were detected by enzyme-linked immunosorbent assay .And chemotaxis assay was used to analyze the chemotactic movement of neutrophil .Results After IL-17A stimulation,the secretion of CXCL12 by non-small cell lung cancer cell line A549 was significantly increased(P<0.01),which is in a dose and time dependent manner .However,IL-17A in-duced the secretion of CXCL12 by A549 was significantly decreased after pre-incubated by the STAT3 inhibitor(P<0.01).In addition,neu-trophil could have chemotaxis by cell suspension obtained from IL-17A stimulated A549 cell line,but such chemotaxis would be declined while CXCL12 was neutralized.Conclusion IL-17A could induce the secretion of CXCL12 in non-small cell lung cancer cell line A549 through STAT3 signal pathway , so as to promote the chemotaxis of neutrophil .