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Figure 4 | Arthritis Research & Therapy

Figure 4

From: Glucose-6-phosphate isomerase promotes the proliferation and inhibits the apoptosis in fibroblast-like synoviocytes in rheumatoid arthritis

Figure 4

GPI inhibits the apoptosis of FLS isolated from RA or OA patients. A, FLS were transfected with GPI expression plasmid (top left) and siRNAs (top right), and 24 hours later were incubated in the absence or presence of 1 μg/ml of ADR for 48 hours. Cell apoptosis was detected by flow cytometry. Quantitative RT-PCR analysis of Fas, Survivin and Caspase-3 mRNA levels in RA-FLS after GPI overexpression and knockdown (bottom left). Western blot analysis of Fas, Survivin, Caspase-3 and Cleaved-Caspase-3 levels in RA-FLS after GPI overexpression and knockdown (bottom right). Friedman’s M test and SNK-q test were used for statistical analysis. B, FLS were pretreated with GPI, and 24 hours later were incubated in the absence or presence of 1 μg/ml of ADR for 48 hours. Cell apoptosis was detected by flow cytometry (left). Quantitative RT-PCR analysis of Fas, Survivin and Caspase-3 mRNA levels in RA-FLS after GPI or/and ADR treatment (right). Western blot analysis of Fas, Survivin, Caspase-3 and Cleaved-Caspase-3 levels in RA-FLS after GPI or/and ADR treatment (right). Friedman’s M test and SNK-q test were used for statistical analysis. C, FLS were pretreated with GPI antibody, and 24 hours later were incubated in the absence or presence of 1 μg/ml of ADR for 48 hours. Cell apoptosis was detected by flow cytometry. Friedman’s M test and SNK-q test were used for statistical analysis. (N = number of individuals, R = number of replicates, **P <0.01, *P <0.05).

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