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CXCR4 siRNA reduces the expression of CXCR4. (A) SDS-PAGE and (B) the gray scale ratio of each band: Lane 1, blank control; 2, empty vector; 3, Sn transfection; 4, siRNA1 transfection; and 5, siRNA2 transfection groups. CXCR4, chemokine (C-X-C motif) receptor 4; siRNA, small interfering RNA.
