ERK1/2 mediates lung adenocarcinoma cell proliferation and autophagy induced by apelin-13

作者：Yang, Li; Su, Tao; Lv, Deguan; Xie, Feng; Liu, Wei; Cao, Jiangang; Sheikh, Irshad Ali; Qin, Xuping; Li, Lanfang^*; Chen, Linxi

来源：Acta Biochimica et Biophysica Sinica, 2014, 46(2): 100-111.

DOI：10.1093/abbs/gmt140

• apelin
• APJ
• lung adenocarcinoma
• ERK1/2
• proliferation
• autophagy

The aim of this study was to investigate the role of apelin in the cell proliferation and autophagy of lung adenocarcinoma. The over-expression of APJ in lung adenocarcinoma was detected by immunohistochemistry, while plasma apelin level in lung cancer patients was measured by enzyme-linked immunosorbent assay. Our findings revealed that apelin-13 significantly increased the phosphorylation of ERK1/2, the expression of cyclin D1, microtubule-associated protein 1 light chain 3A/B (LC3A/B), and beclin1, and confirmed that apelin-13 promoted A549 cell proliferation and induced A549 cell autophagy via ERK1/2 signaling. Moreover, there are pores on the surface of human lung adenocarcinoma cell line A549 and apelin-13 causes cell surface smooth and glossy as observed under atomic force microscopy. These results suggested that ERK1/2 signaling pathway mediates apelin-13-induced lung adenocarcinoma cell proliferation and autophagy. Under our experimental condition, autophagy associated with 3-methyladenine was not involved in cell proliferation.

• 出版日期2014-2
• 单位长江大学; 南华大学