LV-siRGS5 effectively inhibits the expression of RGS5 at the mRNA and protein level in ODMECs. (A) At the mRNA level, the blank group, the negative control group LV-H-siRNA and the LV-siRGS5 three groups of quantitative analysis were 1.07±0.05, 1.32±0.09 and 0.52±0.06, 0.60±0.04, 0.54±0.02, respectively; the expression of negative control LV-H did not affect the RGS5 mRNA (n=3, P<0.05). (B) At the protein level, the blank group, the negative control group LV-H-siRNA and the LV-siRGS5 three groups of quantitative analysis was 0.92±0.08, 0.95±0.21 and 0.17±0.04, 0.22±0.08, 0.19±0.12, respectively; the negative control LV-H-siRNA did not affect the expression of RGS5 (n=3, P<0.05). (C) LV-siRGS5 did not interfere with the expression of RGS2, RGS4 and RGS16 in the B/R4 subfamily. RGS5, regulator of G-protein signaling 5; ODMECs, ovarian carcinoma-derived endothelial cells; LV, lentiviral vector.