Figure 4From: CXCR4/SDF1 mediate hypoxia induced chondrosarcoma cell invasion through ERK signaling and increased MMP1 expressionEffect of Hif-1a and CXCR4 knockdown on the invasion of chondrosarcoma cells. JJ cells were cultured in normoxia (mock) or hypoxia for 48 h after transfection with scramble siRNA (Con-si), or siRNA directed against Hif-1a or CXCR4. Invasion assay was then performed as described in Methods. #, p < 0.05, compared to Mock; *, p < 0.01, **, p < 0.05, compared with Con-si.Back to article page