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(A) Real-time PCR and (B) Western blot were conducted to examine the mRNA and protein expression of CXCL5 in U2OS cells transfected with CXCL5 siRNA or nonspecific siRNA as negative control (NC), respectively. (C) Wound-healing assay and (D) Transwell assay were used to determine cell migration and invasion. **p < 0.01 versus NC.
