TY - JOUR AB - This study was designed to investigate the effects of a cyclooxygenase (COX)-1 inhibitor, SC-560, administered in combination with taxol, on the molecular mechanisms of antitumor efficacy in a SKOV-3 human ovarian carcinoma cell xenograft-bearing mouse model. The mice were treated with 6 mg/kg/day SC-560 by gavage twice every other day and20 mg/kg taxol by intraperitoneal injection once a week for three weeks. Microvessel density (MVD) and vascular endothelial growth factor (VEGF) mRNA levels of ovarian cancer were detected in the tumor tissues using immunohistochemistry and reverse transcription-polymerase chain reaction (RT-PCR), respectively. The index of proliferating and apoptotic cells in the tumor tissues was determined by staining for Ki-67 and using the terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) method, respectively. On day 7 after the end of administration, the tumor volume of mice in the combination group was reduced by 55.35% compared with that of the control mice, and the difference was statistically significant (P<0.05). In the combination group, the expression of VEGF, MVD and the cell proliferation index were inhibited significantly, while the apoptotic index was notably increased (all P<0.01, compared with the control group). Our results indicate that the molecular mechanisms of the antitumor efficacy of SC-560 combined with taxol therapy may act in part by inhibiting tumor angiogenesis, reducing cell proliferation and inducing cell apoptosis. AD - Department of Gynecology, Nanjing Medical University of Hangzhou Hospital, Hangzhou, Zhejiang 310006, P.R. China AU - Li,Wei AU - Liu,Mei-Lin AU - Cai,Jia-Hui AU - Tang,Yun-Xian AU - Zhai,Ling-Yun AU - Zhang,Jun DA - 2012/07/01 DO - 10.3892/ol.2012.688 EP - 174 IS - 1 JO - Oncol Lett KW - ovarian cancer SC-560 taxol microvessel density vascular endothelial growth factor Ki-67 apoptosis PY - 2012 SN - 1792-1074 1792-1082 SP - 168 ST - Effect of the combination of a cyclooxygenase-1 selective inhibitor and taxol on proliferation, apoptosis and angiogenesis of ovarian cancer in vivo T2 - Oncology Letters TI - Effect of the combination of a cyclooxygenase-1 selective inhibitor and taxol on proliferation, apoptosis and angiogenesis of ovarian cancer in vivo UR - https://doi.org/10.3892/ol.2012.688 VL - 4 ER -