This study was designed to measure the multi-drug resistance gene (MDR1) mRNA content and analyze clinical relationship between MDR1 expression and drug resistance in primary ovarian cancer. Reverse transcription PCR...This study was designed to measure the multi-drug resistance gene (MDR1) mRNA content and analyze clinical relationship between MDR1 expression and drug resistance in primary ovarian cancer. Reverse transcription PCR (RT-PCR) was used to measure MDR1 mRNA content in biopsy sample of 31 primary ovarian cancers (experimental group) and 30 gynecological tumors (control group). The level of 95.2% (20/21) MDR1 expression was relatively low, and the detected rate of MDR1 expression was 67.7%(21/31) in experimental group,which was higher than that in control group (40.0%, P<0.05). The differences of MDR1 expression between the effective group and no effect group after combined chemotherapy was significant (P<0.05). No significant relationship was found between MDR1 expression and clinical stage or histological classification or grade of differentiation in experimental group. We are led to concluded that primary ovarian cancers have drug-resistance clones which might express MDR1 spontaneously and expression of MDR1 may be used as a prognostic and predictive indicator for clinical response of ovarian cancers to combined chemotherapy.展开更多
目的:探讨Livin和张力蛋白同源10q丢失的磷酸酶基因(phosphatase and tensin hornology deleted on chromosome 10,PTEN)的表达与卵巢上皮性癌的临床病理学特征的关系及其相关性。方法:采用免疫组织化学EliVision法检测60例卵巢上皮性...目的:探讨Livin和张力蛋白同源10q丢失的磷酸酶基因(phosphatase and tensin hornology deleted on chromosome 10,PTEN)的表达与卵巢上皮性癌的临床病理学特征的关系及其相关性。方法:采用免疫组织化学EliVision法检测60例卵巢上皮性癌组织、20例良性卵巢上皮性肿瘤及20例正常卵巢组织中Livin及PTEN表达情况。结果:卵巢上皮性癌中Livin阳性率(80.0%)均明显高于卵巢良性上皮性肿瘤(10.0%)及正常卵巢组织(5.0%)(P<0.01)。卵巢上皮性癌的组织病理学分级间Livin的阳性率差异有统计学意义(P<0.01),而在临床分期及淋巴结转移中差异均无统计学意义(P>0.05)。卵巢上皮性癌中PTEN的阳性率(26.7%)均明显低于卵巢良性上皮性肿瘤(95.0%)及正常卵巢组织(100.0%)(P<0.01);卵巢上皮性癌的临床分期、组织病理学分级及淋巴结有无转移间PTEN的阳性率差异均有统计学意义(P<0.01)。卵巢上皮性癌中Livin的阳性率与PTEN的阳性率呈负相关关系(P<0.01)。结论:Livin的表达上调及PTEN的表达下调在卵巢上皮性癌的发生、分化进展中起重要作用,Livin基因有可能成为治疗卵巢癌的新靶点。展开更多
目的:探讨卵巢癌组织和腹腔冲洗液中Ras相关区域家族1A(Ras association domain family 1A,RASSF 1A)基因启动子异常甲基化状况及其在卵巢癌诊断中的价值。方法:采用甲基化特异性PCR方法检测42例卵巢癌组织、腹腔冲洗液或腹腔积液、11...目的:探讨卵巢癌组织和腹腔冲洗液中Ras相关区域家族1A(Ras association domain family 1A,RASSF 1A)基因启动子异常甲基化状况及其在卵巢癌诊断中的价值。方法:采用甲基化特异性PCR方法检测42例卵巢癌组织、腹腔冲洗液或腹腔积液、11例正常卵巢组织和19例良性病变卵巢组织中RASSF 1A基因启动子区甲基化状态。结果:42例卵巢癌组织中RASSF 1A基因启动子区甲基化发生率为38.1%,11例正常卵巢组织和19例良性卵巢组织中RASSF 1A基因启动子区无甲基化,差异有统计学意义(P<0.01)。临床分期Ⅲ期和Ⅳ期的卵巢癌组织中RASSF 1A基因启动子区甲基化发生率为54.2%,高于临床Ⅰ期和Ⅱ期者16.6%(P<0.05)。淋巴结阳性者癌组织中RASSF 1A基因启动子区甲基化发生率56.5%,高于淋巴结阴性者15.8%。腹腔冲洗液或腹腔积液细胞学阳性者癌组织中RASSF 1A基因启动子区甲基化发生率为74.1%,高于腹腔冲洗液或腹腔积液细胞学阴性者33.3%(P<0.01)。结论:RASSF 1A基因甲基化在卵巢癌患者中具有较高的发生率,检测卵巢癌组织和腹腔冲洗液或腹腔积液中RASSF 1A基因的甲基化状态对卵巢癌的诊断和判断预后具有一定的价值。展开更多
目的研究卵巢浆液性腺癌中氧化还原酶的双色氨酸域基因(WW domain-containing oxidoreductase,WWOX)和10号染色体缺失的磷酸酶和张力蛋白同源物基因(phosphatase and tension homologdeleted on chromosome ten,PTEN)蛋白表达情况及其...目的研究卵巢浆液性腺癌中氧化还原酶的双色氨酸域基因(WW domain-containing oxidoreductase,WWOX)和10号染色体缺失的磷酸酶和张力蛋白同源物基因(phosphatase and tension homologdeleted on chromosome ten,PTEN)蛋白表达情况及其与预后的关系,为临床合理准确预测患者生存率,指导临床治疗提供依据。方法应用免疫组织化学方法检测卵巢浆液性腺癌患者56例组织中WWOX和PTEN蛋白表达情况,对其临床病理资料进行回顾性分析,运用Kaplan-Meier单因素生存分析探讨WWOX和PTEN蛋白表达与预后的关系。结果 56例卵巢浆液性腺癌中WWOX蛋白呈阳性表达27例(48.2%),明显低于正常卵巢组织中的阳性表达率(P<0.05);PTEN蛋白表达阳性29例(51.8%),明显低于正常卵巢组织中的阳性表达率(P<0.05)。WWOX蛋白表达阳性的患者3、5年生存率分别为63.0%和44.4%,明显高于阴性表达的患者(P<0.05)。PTEN蛋白表达阳性的患者3、5年生存率分别为62.1%和44.8%,均明显高于阴性表达的患者(P<0.05)。WWOX和PTEN蛋白表达在卵巢浆液性腺癌不同病理分级中的差异有统计学意义(P<0.05)。结论抑癌基因WWOX和PTEN蛋白表达缺失参与了卵巢浆液性腺癌的发生,其表达缺失的患者生存率低,预后不良。展开更多
文摘This study was designed to measure the multi-drug resistance gene (MDR1) mRNA content and analyze clinical relationship between MDR1 expression and drug resistance in primary ovarian cancer. Reverse transcription PCR (RT-PCR) was used to measure MDR1 mRNA content in biopsy sample of 31 primary ovarian cancers (experimental group) and 30 gynecological tumors (control group). The level of 95.2% (20/21) MDR1 expression was relatively low, and the detected rate of MDR1 expression was 67.7%(21/31) in experimental group,which was higher than that in control group (40.0%, P<0.05). The differences of MDR1 expression between the effective group and no effect group after combined chemotherapy was significant (P<0.05). No significant relationship was found between MDR1 expression and clinical stage or histological classification or grade of differentiation in experimental group. We are led to concluded that primary ovarian cancers have drug-resistance clones which might express MDR1 spontaneously and expression of MDR1 may be used as a prognostic and predictive indicator for clinical response of ovarian cancers to combined chemotherapy.
文摘目的:探讨Livin和张力蛋白同源10q丢失的磷酸酶基因(phosphatase and tensin hornology deleted on chromosome 10,PTEN)的表达与卵巢上皮性癌的临床病理学特征的关系及其相关性。方法:采用免疫组织化学EliVision法检测60例卵巢上皮性癌组织、20例良性卵巢上皮性肿瘤及20例正常卵巢组织中Livin及PTEN表达情况。结果:卵巢上皮性癌中Livin阳性率(80.0%)均明显高于卵巢良性上皮性肿瘤(10.0%)及正常卵巢组织(5.0%)(P<0.01)。卵巢上皮性癌的组织病理学分级间Livin的阳性率差异有统计学意义(P<0.01),而在临床分期及淋巴结转移中差异均无统计学意义(P>0.05)。卵巢上皮性癌中PTEN的阳性率(26.7%)均明显低于卵巢良性上皮性肿瘤(95.0%)及正常卵巢组织(100.0%)(P<0.01);卵巢上皮性癌的临床分期、组织病理学分级及淋巴结有无转移间PTEN的阳性率差异均有统计学意义(P<0.01)。卵巢上皮性癌中Livin的阳性率与PTEN的阳性率呈负相关关系(P<0.01)。结论:Livin的表达上调及PTEN的表达下调在卵巢上皮性癌的发生、分化进展中起重要作用,Livin基因有可能成为治疗卵巢癌的新靶点。
文摘目的研究卵巢浆液性腺癌中氧化还原酶的双色氨酸域基因(WW domain-containing oxidoreductase,WWOX)和10号染色体缺失的磷酸酶和张力蛋白同源物基因(phosphatase and tension homologdeleted on chromosome ten,PTEN)蛋白表达情况及其与预后的关系,为临床合理准确预测患者生存率,指导临床治疗提供依据。方法应用免疫组织化学方法检测卵巢浆液性腺癌患者56例组织中WWOX和PTEN蛋白表达情况,对其临床病理资料进行回顾性分析,运用Kaplan-Meier单因素生存分析探讨WWOX和PTEN蛋白表达与预后的关系。结果 56例卵巢浆液性腺癌中WWOX蛋白呈阳性表达27例(48.2%),明显低于正常卵巢组织中的阳性表达率(P<0.05);PTEN蛋白表达阳性29例(51.8%),明显低于正常卵巢组织中的阳性表达率(P<0.05)。WWOX蛋白表达阳性的患者3、5年生存率分别为63.0%和44.4%,明显高于阴性表达的患者(P<0.05)。PTEN蛋白表达阳性的患者3、5年生存率分别为62.1%和44.8%,均明显高于阴性表达的患者(P<0.05)。WWOX和PTEN蛋白表达在卵巢浆液性腺癌不同病理分级中的差异有统计学意义(P<0.05)。结论抑癌基因WWOX和PTEN蛋白表达缺失参与了卵巢浆液性腺癌的发生,其表达缺失的患者生存率低,预后不良。