Effect of EphrinA1-Fc on phosphorylation of EphA2 and ERK in 786-O renal carcinoma cells / 中国肿瘤临床

ABSTRACT

Objective:To detect the effect of EphrinA1-Fc on the phosphorylation of EphA2 and extracellular signal-regulated ki-nase (ERK) in 786-O renal carcinoma cells (RCCs). Methods:The soluble ligand EphrinA1-Fc was used to inhibit the 786-O RCCs in vitro. Western blot analysis was used to examine the phosphorylation of EphA2 and ERK1/2 in the 786-O RCCs at different time points. Results:After the intervention with EphrinA1-Fc for 5, 10, 30, and 60 min, the expression of p-EphA2 increased (F=9.392, P=0.025) as well as that of p-ERK (F=4.428, P=0.041). No p-EphA2 and p-ERK expression was observed in the pre-intervention group. Conclusion:One of the possible mechanisms of the inhibitory effect of EphrinA1-Fc on tumor metastasis and recurrence involves the phosphorylation of EphA2 by EphrinA1-Fc, leading to the degradation of EphA2.