Summary： To investigate the expression of cyclooxygenase-2 （COX-2） in ovarian cancer cell lines, RT-PCR and immunocytochemistry were used to detect the expression of COX-2 in 5 ovarian cancer cell lines. The expres...Summary： To investigate the expression of cyclooxygenase-2 （COX-2） in ovarian cancer cell lines, RT-PCR and immunocytochemistry were used to detect the expression of COX-2 in 5 ovarian cancer cell lines. The expression of COX-2 mRNA and protein was detected in all 5 cell lines. It is suggested that COX-2 is expressed in ovarian cancer cell lines, which provides a Basis for the chemoprevention of ovarian cancer.展开更多
Objective： To investigate the expression of cyclooxygenase-2 （COX-2） mRNA in drug-sensitive cell and drugresistant clones of ovarian cancer cell lines. Methods： RT-PCR and immunocytochemistry were used to investig...Objective： To investigate the expression of cyclooxygenase-2 （COX-2） mRNA in drug-sensitive cell and drugresistant clones of ovarian cancer cell lines. Methods： RT-PCR and immunocytochemistry were used to investigate the expression of cyclooxygenase-2 in 3 clones drug-sensitive and 5 clones drug-resistant ovarian cancer cell. Results： Strong COX-2 mRNA expressions were detected in 3 clones of drug-sensitive cell and weak expressions were detected in 5 clones of drug-resistant cell. The protein expression of COX-2 in drug-sensitive cell was strongly positive reaction in immunocytochemistry stain and there was a weak positive reaction in 5 clones of drug-resistant cell. Conclusion： The expression of COX-2 mRNA in drug-sensitive cell strains is much higher than that in drugresistant strains of ovarian cancer cell lines, providing a basis of the chemoprevention for ovarian cancer.展开更多
Objective： To investigate the proliferation effect and its pathway of activin A on Ovarian epithelial cancer cells line OVCAR-3. Methods： OVCAR-3 cells were cultured in vitro and the membrane receptor ActR II was de...Objective： To investigate the proliferation effect and its pathway of activin A on Ovarian epithelial cancer cells line OVCAR-3. Methods： OVCAR-3 cells were cultured in vitro and the membrane receptor ActR II was detected by immunohistochemical method. The OVCAR-3 cells were cultured with 10 ng/ml activin A for 7 d to observe the effects. Activin A at 5, 10, 15 and 20 ng/ml was used separately to treat the OVCAR-3 cancer cells for 24, 48 and 72 h in order to draw the growth proliferation rate curve measured by MTT method. The expression of protein bcl-2 was detected by western-blot. When OVCAR-3 cells were treated with 10 ng/ml activin A and 5 lag/ml DDP for 24, 48 and 72 h, cell apoptosis could be detected by electron microscopy and flow cytometry （FCM）. Results： Positive expression of ActR II was detected. We also found that the proliferation of OVCAR-3 reached to the climax on the 5th day of culture. The experiments showed that the cells treated with activin A increased quickly and grew faster than those in control group. Moreover, OVCAR-3 cells treated with activin A for 48 h proliferated significantly greater than those treated for 24 h or 72 h （P〈0.01）. bcl-2 protein expression increased expression in activin A treated group than in control group （P〈0.05）. Conclusion： Activin A could increase the proliferation of OVCAR-3 cells which may be through bcl-2 anti-apoptosis pathway.展开更多
Objective Although great progress has been made in the diagnosis and treatment of ovarian cancer, this disease is still the leading cause of death due to female reproductive system tumors. It has been reported that th...Objective Although great progress has been made in the diagnosis and treatment of ovarian cancer, this disease is still the leading cause of death due to female reproductive system tumors. It has been reported that the paired box 8 (PAX8) gene is involved in the occurrence and development of a variety of human tumors. However, few researchers have investigated this phenomenon in detail. Methods Here, the BioGPS database was used to analyze the expression of the PAX8 gene in normal tissues. The Oncomine database was used to search for PAX8 gene information, and the findings were analyzed via a meta-analysis with regard to the significance of this gene in ovarian cancer. The Kaplan- Meier Plotter database was used to analyze the prognosis of patients with ovarian cancer. The Cancer Cell Line Encyclopedia (CCLE) was used only for obtaining cell line analysis data regarding the PAX8 gene. Results The relevant results of the BioGPS database analysis showed that PAX8 is not expressed or under-expressed in normal ovarian tissues. Oncomine data showed 454 different results;there were 417 study samples in total, with 9 results showing a significant statistical difference in PAX8 expression, 5 of which were related to high expression of PAX8 and 4 of which were related to low PAX8 expression. Cell line analysis data of the PAX8 gene obtained from CCLE showed high expression in ovarian cancer, which is consistent with the high expression of PAX8 in ovarian cancer research found using the Oncomine database. The Kaplan-Meier Plotter database showed that the expression level of PAX8 had a significant effect on the overall survival time of patients (P = 0.042). Compared with the low expression group, the overall survival time of ovarian cancer patients in the high expression group of PAX8 was significantly low (P < 0.05). Conclusion Through an in-depth study of the gene information of ovarian cancer-related genes using the gene chip data in the Oncomine database, it was concluded that PAX8 is highly expressed in ovarian cancer tissues and directly correlates to the prognostic survival of ovarian cancer patients. These findings provide an important basis for the development of clinical gene-targeted cancer therapeutic drugs.展开更多
目的:探讨重组人白细胞介素24(recombinant human interleukin-24,rhIL-24)诱导人卵巢癌SKOV3细胞株、SKOV3/ddp人卵巢癌耐顺铂细胞株的凋亡相关6个基因表达的变化。方法:体外培养人卵巢癌SKOV3细胞株、人卵巢癌耐顺铂SKOV3/ddp细胞株,...目的:探讨重组人白细胞介素24(recombinant human interleukin-24,rhIL-24)诱导人卵巢癌SKOV3细胞株、SKOV3/ddp人卵巢癌耐顺铂细胞株的凋亡相关6个基因表达的变化。方法:体外培养人卵巢癌SKOV3细胞株、人卵巢癌耐顺铂SKOV3/ddp细胞株,用rhIL-24单独及其联合顺铂作用于两种不同的细胞株,提取RNA,经逆转录和聚合酶链反应,应用多基因遗传表达分析系统(GeXP)同时检测6个凋亡基因。结果:rhIL-24诱导上调人卵巢癌SKOV3细胞株Bax、Rb、P53基因,激活Caspase-3,下调Bcl-2、Birc5基因;rhIL-24诱导上调人卵巢癌耐顺铂SKOV3/ddp细胞株Bax、Rb基因,激活Caspase-3,下调Bcl-2基因;rhIL-24联合DDP组其上述基因表达变化更加显著。结论:rhIL-24诱导人卵巢癌细胞凋亡主要通过上调Bax、Rb、P53,激活Caspase3,下调Bcl-2,Birc5等凋亡相关基因。展开更多
文摘Summary： To investigate the expression of cyclooxygenase-2 （COX-2） in ovarian cancer cell lines, RT-PCR and immunocytochemistry were used to detect the expression of COX-2 in 5 ovarian cancer cell lines. The expression of COX-2 mRNA and protein was detected in all 5 cell lines. It is suggested that COX-2 is expressed in ovarian cancer cell lines, which provides a Basis for the chemoprevention of ovarian cancer.
基金National Natural Science Foundation of China (No.30070786)
文摘Objective： To investigate the expression of cyclooxygenase-2 （COX-2） mRNA in drug-sensitive cell and drugresistant clones of ovarian cancer cell lines. Methods： RT-PCR and immunocytochemistry were used to investigate the expression of cyclooxygenase-2 in 3 clones drug-sensitive and 5 clones drug-resistant ovarian cancer cell. Results： Strong COX-2 mRNA expressions were detected in 3 clones of drug-sensitive cell and weak expressions were detected in 5 clones of drug-resistant cell. The protein expression of COX-2 in drug-sensitive cell was strongly positive reaction in immunocytochemistry stain and there was a weak positive reaction in 5 clones of drug-resistant cell. Conclusion： The expression of COX-2 mRNA in drug-sensitive cell strains is much higher than that in drugresistant strains of ovarian cancer cell lines, providing a basis of the chemoprevention for ovarian cancer.
文摘Objective： To investigate the proliferation effect and its pathway of activin A on Ovarian epithelial cancer cells line OVCAR-3. Methods： OVCAR-3 cells were cultured in vitro and the membrane receptor ActR II was detected by immunohistochemical method. The OVCAR-3 cells were cultured with 10 ng/ml activin A for 7 d to observe the effects. Activin A at 5, 10, 15 and 20 ng/ml was used separately to treat the OVCAR-3 cancer cells for 24, 48 and 72 h in order to draw the growth proliferation rate curve measured by MTT method. The expression of protein bcl-2 was detected by western-blot. When OVCAR-3 cells were treated with 10 ng/ml activin A and 5 lag/ml DDP for 24, 48 and 72 h, cell apoptosis could be detected by electron microscopy and flow cytometry （FCM）. Results： Positive expression of ActR II was detected. We also found that the proliferation of OVCAR-3 reached to the climax on the 5th day of culture. The experiments showed that the cells treated with activin A increased quickly and grew faster than those in control group. Moreover, OVCAR-3 cells treated with activin A for 48 h proliferated significantly greater than those treated for 24 h or 72 h （P〈0.01）. bcl-2 protein expression increased expression in activin A treated group than in control group （P〈0.05）. Conclusion： Activin A could increase the proliferation of OVCAR-3 cells which may be through bcl-2 anti-apoptosis pathway.
文摘Objective Although great progress has been made in the diagnosis and treatment of ovarian cancer, this disease is still the leading cause of death due to female reproductive system tumors. It has been reported that the paired box 8 (PAX8) gene is involved in the occurrence and development of a variety of human tumors. However, few researchers have investigated this phenomenon in detail. Methods Here, the BioGPS database was used to analyze the expression of the PAX8 gene in normal tissues. The Oncomine database was used to search for PAX8 gene information, and the findings were analyzed via a meta-analysis with regard to the significance of this gene in ovarian cancer. The Kaplan- Meier Plotter database was used to analyze the prognosis of patients with ovarian cancer. The Cancer Cell Line Encyclopedia (CCLE) was used only for obtaining cell line analysis data regarding the PAX8 gene. Results The relevant results of the BioGPS database analysis showed that PAX8 is not expressed or under-expressed in normal ovarian tissues. Oncomine data showed 454 different results;there were 417 study samples in total, with 9 results showing a significant statistical difference in PAX8 expression, 5 of which were related to high expression of PAX8 and 4 of which were related to low PAX8 expression. Cell line analysis data of the PAX8 gene obtained from CCLE showed high expression in ovarian cancer, which is consistent with the high expression of PAX8 in ovarian cancer research found using the Oncomine database. The Kaplan-Meier Plotter database showed that the expression level of PAX8 had a significant effect on the overall survival time of patients (P = 0.042). Compared with the low expression group, the overall survival time of ovarian cancer patients in the high expression group of PAX8 was significantly low (P < 0.05). Conclusion Through an in-depth study of the gene information of ovarian cancer-related genes using the gene chip data in the Oncomine database, it was concluded that PAX8 is highly expressed in ovarian cancer tissues and directly correlates to the prognostic survival of ovarian cancer patients. These findings provide an important basis for the development of clinical gene-targeted cancer therapeutic drugs.
文摘目的:探讨重组人白细胞介素24(recombinant human interleukin-24,rhIL-24)诱导人卵巢癌SKOV3细胞株、SKOV3/ddp人卵巢癌耐顺铂细胞株的凋亡相关6个基因表达的变化。方法:体外培养人卵巢癌SKOV3细胞株、人卵巢癌耐顺铂SKOV3/ddp细胞株,用rhIL-24单独及其联合顺铂作用于两种不同的细胞株,提取RNA,经逆转录和聚合酶链反应,应用多基因遗传表达分析系统(GeXP)同时检测6个凋亡基因。结果:rhIL-24诱导上调人卵巢癌SKOV3细胞株Bax、Rb、P53基因,激活Caspase-3,下调Bcl-2、Birc5基因;rhIL-24诱导上调人卵巢癌耐顺铂SKOV3/ddp细胞株Bax、Rb基因,激活Caspase-3,下调Bcl-2基因;rhIL-24联合DDP组其上述基因表达变化更加显著。结论:rhIL-24诱导人卵巢癌细胞凋亡主要通过上调Bax、Rb、P53,激活Caspase3,下调Bcl-2,Birc5等凋亡相关基因。
