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Fig. 5 | Molecular Cancer

Fig. 5

From: GLIPR1-ΔTM synergizes with docetaxel in cell death and suppresses resistance to docetaxel in prostate cancer cells

Fig. 5

CXCR4si increased the sensitivity of VCaP and PC-3 cells to docetaxel and reduced cell migration trend when combined with docetaxel. a. Western blot in VCaP and PC-3 cells to evaluate the efficacy of CXCR4si7 and CXCR4si8 siRNAs. The results are presented as the mean ± standard error from three independent experiments. Quantitative data of western blots on 2 different CXCR4siRNAs for validation and determination of their effect size are provided in Supplementary Data. b. CXCR4 knockdown decreased the survival of VCaP cells when was combined with GLIPR1-ΔTM (p < 0.001), docetaxel (p < 0.001) and combination (p = 0.004) than the CXCR4 knockdown alone did according to MTS assay. c. CXCR4 knockdown increased the apoptosis of VCaP when was combined with GLIPR1-ΔTM (p < 0.001), docetaxel (p < 0.001) and combination (p = 0.041) than the CXCR4 knockdown did according to DNA fragmentation assay. The results are presented as the mean ± standard error from at least three independent experiments. d. CXCR4 knockdown decreased the survival of PC-3 cells when was combined with GLIPR1-ΔTM (p < 0.001), docetaxel (p < 0.001) and combination (p = 0.01) than the CXCR4 knockdown alone did according to MTS assay. e. CXCR4 knockdown increased the apoptosis of PC-3 cells when combined with GLIPR1-ΔTM (p < 0.001), docetaxel (p < 0.001) and combination (p < 0.001) than the CXCR4 knockdone alone did. The results are presented as the mean ± standard error from at least three independent experiments. f. Migration of VCaP cells was evaluated by scratch assay after 24 h of treatment with 1nM docetaxel with or without the addition of 10 μg/ml GLIPR1-ΔΤΜ or 25 μg/ml AMD3100, a known CXCR4 inhibitor. The addition of GLIPR1-ΔTM significantly decreased the number of migrated cells (p < 0.001). g. Migration of PC-3 cells was evaluated by scratch assay after 24 h of treatment with 1nM docetaxel with or without the addition of 10 μg/ml GLIPR1-ΔΤΜ or 25 μg/ml AMD3100. The addition of GLIPR1-ΔTM significantly decreased the number of migrated cells (p < 0.001). The migration assay experiments were conducted twice and the presented results are the averages of these two independent experiments

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