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Expression of CXCL12 in breast cancer cell lines and upregulation of CXCL12 in MDA-MB-231. A: Western blot showing the expression of CXCL12 in 6 breast cancer cell lines. GAPDH served as protein loading control. B: Western blot of CXCL12 expression in Ad-cont and Ad-CXCL12 cells after normalization to GAPDH.
