Fig. 4

A. Expression distribution of SERPINA1 gene in different breast cancer cell lines in CCLE database; B. The knockdown of SERPINA1 gene was detected by Western blot analysis; C. The overexpression of SERPINA1 gene was detected by Western blot analysis. (* p < 0.05;**p < 0.01;***p < 0.001, ****p < 0.0001, original blots/gels are presented in Supplementary Figure).