CXCR4、HER-2在上皮性卵巢肿瘤中的表达及其相关性研究

目的:研究CXCR4和HER-2在上皮性卵巢肿瘤中的表达情况及其相关性。方法:应用免疫组织化学方法检测30例浆液性和粘液性卵巢癌、10例浆液性和粘液性卵巢囊腺瘤、5例卵巢癌盆腔腹膜转移灶及8例正常卵巢组织中CXCR4和HER-2的表达情况。结果:CXCR4在卵巢恶性肿瘤原发灶及转移灶中均呈高表达,阳性率分别为63.3%,80%,明显高于其在正常卵巢组织及卵巢良性肿瘤中的表达。HER-2在卵巢恶性肿瘤及转移灶中均呈高表达,阳性率分别为70%,80%,明显高于正常卵巢组织及卵巢良性肿瘤。CX-CR4、HER-2在卵巢囊腺癌中的表达呈显著正相关(P<0.001)。结论:CXCR4、HER-2在卵巢上皮性囊腺癌及转移灶中的阳性表达率较高,且两者的表达呈显著性正相关。提示了CXCR4、HER-2在上皮性卵巢囊腺癌的发生和转移中起着重要作用。     

B7-H4在上皮性卵巢癌中的表达及意义

目的 探讨上皮性卵巢癌组织中B7-H4的表达及其与临床病理特征和预后的关系。方法采用免疫组化法检测66例上皮性卵巢癌、5例交界性卵巢肿瘤、8例良性卵巢肿瘤组织和20例正常卵巢组织蜡块中B7-H4的表达,分析其表达与上皮性卵巢癌临床病理特征和预后的关系。结果 B7-H4在上皮性卵巢癌组织中的阳性表达率为86.4％,在卵巢交界性肿瘤、卵巢良性肿瘤及正常卵巢组织中均不表达。B7-H4在浆液性囊腺癌、子宫内膜样癌和透明细胞癌中的阳性表达率分别为100.0％、90.0％和87.5％,均高于其在黏液性囊腺癌中的50.0％,差异有统计学意义（P＜0.05）。上皮性卵巢癌中B7-H4的表达与年龄、腹水细胞学无关,而与临床FIGO分期、组织学分级、淋巴结转移有关。B7-H4的表达与上皮性卵巢癌患者的生存情况无关（P＞0.05）。结论 B7-H4蛋白在上皮性卵巢癌组织中的表达上调,其表达与上皮性卵巢癌的发生、发展有关。     

人PTPRK基因在上皮性卵巢肿瘤中的表达及其意义

目的探讨受体型蛋白酪氨酸磷酸酶(PTPRK)基因在良性、交界性和恶性上皮性卵巢肿瘤及正常卵巢上皮组织中的表达规律及其与卵巢癌的关系.方法应用免疫组化间接法检测50例卵巢癌、13例良性上皮性卵巢肿瘤、14例交界性上皮性卵巢肿瘤及10例正常卵巢上皮组织中PTPRK基因的表达,采用Kaplan-Meier生存分析比较卵巢癌患者PTPRK蛋白表达与五年生存率的关系.结果(1)良性、交界性上皮性卵巢肿瘤和卵巢癌组中,PTPRK基因的阳性表达率分别为53.9%、57.1%、18.0%,显著低于正常卵巢上皮组的表达率100%(P均＜0.001).卵巢癌组中PTPRK基因的阳性表达率显著低于良性上皮性卵巢肿瘤组(P＜0.001)和交界性上皮性卵巢肿瘤组(P＜0.01).(2)卵巢癌高分化组中PTPRK基因的表达率为62.5%,显著高于中分化组(18.8%)和低分化组(6.3%)(P＜0.01).卵巢癌淋巴结无转移组PTPRK基因的表达率为27.3%,显著高于无阳性表达的淋巴结有转移组(P＜0.05).(3)PTPRK基因表达阳性组与表达阴性组的5年生存率分别为66.7%、46.7%,两组比较,差异无显著性(P＞0.05).结论PTPRK基因表达缺失发生在上皮性卵巢肿瘤组织中,肿瘤分化程度越低或者淋巴结已有转移则该基因表达缺失越明显.PTPRK基因可能是一种肿瘤抑制基因,其不同程度的表达缺失与上皮性卵巢肿瘤的发生和发展有关.     

TMEFF1在卵巢上皮性浆液性肿瘤中的表达及其临床意义

目的:检测TMEFF1(tomoregulin-1)在卵巢上皮性浆液性肿瘤中的表达,探讨其临床意义.方法:采用免疫组化SP法检测卵巢上皮性浆液性囊腺癌、卵巢上皮性交界性肿瘤、卵巢上皮性良性肿瘤以及正常卵巢组织中TMEFF1的表达情况,分析其与卵巢上皮性浆液性囊腺癌临床病理参数及预后的关系.结果:TMEFF1以胞膜着色为主,亦有胞浆着色.TMEFF1在卵巢上皮性浆液性囊腺癌中的表达率(90.24%)明显高于卵巢上皮性交界性肿瘤(45.45%)、卵巢上皮性良性肿瘤(33.33%)及正常卵巢(26.67%) (P均<0.05).在卵巢上皮性浆液性囊腺癌中,TMEFF1表达随FIGO分期增加而逐渐增加(P<0.05),TMEFF1为影响卵巢上皮性浆液性癌预后的独立危险因素(P<0.05).结论:TMEFF1的表达与卵巢癌的发生、发展及预后相关.     

BRCA1与SIRT1在浆液性上皮性卵巢癌组织中的表达及意义

目的:本研究分别从蛋白质表达方面比较正常卵巢组织、卵巢良性肿瘤组织与浆液性上皮性卵巢癌组织中乳腺癌易感基因1(breast cancer susceptibility gene 1,BRCA1)与沉默信息调节因子1 (silent information regulator type 1,SIRT1)表达的变化,探讨BRCA1与SIRT1在浆液性上皮性卵巢癌发生过程中的作用及二者之间的相关性,为进一步明确浆液性上皮性卵巢癌的发病机制、早期诊断、预防及药物治疗奠定理论基础.方法:利用免疫组织化学法分别检测BRCA1和SIRT1在正常卵巢组织、卵巢良性肿瘤组织与浆液性上皮性卵巢癌组织中蛋白的表达情况并进行统计学处理.结果:BRCA1蛋白在正常卵巢组织中的阳性表达率为93.33%,卵巢浆液性囊腺瘤组织为66.67%,卵巢浆液性囊腺癌组织为47.50%,各组间比较差异有显著性(P<0.05).SIRT1蛋白在正常卵巢组织中的阳性表达率为86.67%,卵巢浆液性囊腺瘤组织为50.00%,卵巢浆液性囊腺癌组织为40.00%,正常与恶性、良性与恶性组织间比较差异具有统计学意义(P<0.05),正常与良性组织间比较差异无统计学意义(P>0.05).卵巢浆液性囊腺癌组织中,BRCA1在不同年龄、淋巴结转移分组中,阳性表达率无统计学差异(P>0.05),在不同手术病理分期、组织学分级分组中,阳性表达率具有统计学差异(P<0.05).SIRT1在不同年龄、手术病理分期、淋巴结转移分组中,阳性表达率无统计学差异(P>0.05),在不同组织学分级中,阳性表达率具有统计学差异(P<0.05).BRCA1、SIRT1在卵巢浆液性囊腺癌组织中的表达呈正相关(r=0.664,P<0.001).结论:BRCA1、SIRT1的低表达与浆液性上皮性卵巢癌的发生、发展有关,SIRT1可能是BRCA1的下游靶分子,未来有可能成为诊断与治疗浆液性上皮性卵巢癌的新靶点.     

增殖细胞核抗原表达与卵巢浆液性乳头状囊腺癌预后的关系

 目的　探讨增殖细胞核抗原 (PCNA)在卵巢浆液性乳头状囊腺癌 (卵巢浆乳癌 )的表达及其与肿瘤生物学行为及预后的关系。方法　用单克隆抗体PC10免疫组化 (LSBA)染色石蜡包埋的卵巢组织。结果　PCNA在卵巢良性浆液性肿瘤及恶性肿瘤中均有表达 ,但浆乳癌中PCNA的阳性表达率 (73% )明显高于良性及交界性卵巢肿瘤 (7% ,2 7% ,P <0 .0 5 )。卵巢浆乳癌中PCNA阳性表达率随临床期别的升高而升高 ,中晚期 (Ⅱ～Ⅲ期 )卵巢癌PCNA阳性表达率明显高于早期患者 (P <0 .0 5 )。单因素及多因素生存分析显示 ,PCNA表达与否是卵巢浆乳癌一个相对独立的预后指标 (P <0 .0 0 1)。结论　PCNA的阳性表达与卵巢浆乳癌的不良预后有关。     

卵巢上皮性囊腺性肿瘤组织中C-erbB-2、PCNA和p53蛋白的表达及临床病理学意义

目的 :探讨原癌基因C erbB 2、增殖细胞核抗原 (proliferatingcellnuclearantigen ,PCNA)、抑癌基因p5 3在卵巢上皮性囊腺性肿瘤组织中的表达及其临床病理学意义。方法 :应用抗生蛋白链菌素标记法 (LSAB)和图象分析系统方法检测卵巢上皮性囊腺性肿瘤组织中 (其中 61例良性肿瘤、19例交界性肿瘤、4 4例恶性肿瘤 )C erbB 2、PCNA及p5 3蛋白的表达。结果 :1)C erbB 2、PCNA、p5 3三指标在囊腺瘤、交界性囊腺瘤、囊腺癌中阳性表达率均呈梯度升高 ,差异有极显著性 (P <0 0 0 1)。其中PCNA与p5 3在浆液性囊腺癌组织中的表达显著高于交界性肿瘤及黏液囊腺癌组织 (P <0 0 5 )。 2 )C erbB 2、PCNA和p5 3在囊腺瘤组织中的阳性细胞平均积分光密度值 (染色强度 )均显著低于交界性瘤和恶性肿瘤 ,且差异有极显著性 (P <0 0 0 1)。 3)p5 3蛋白表达与囊腺癌临床分期、组织学分级有相关性 (P <0 0 5 )。 4 )p5 3+PNCA和C erbB 2 +PCNA +p5 3联合表达率在交界性囊腺瘤与囊腺癌之间差异有显著性 (P <0 0 1)。结论 :C erbB 2、PCNA和p5 3蛋白的高表达与囊腺癌的发生有密切关系 ,可作为卵巢上皮性囊腺性肿瘤恶性化的分子标志。PCNA和p5 3蛋白的免疫组化检测可成为卵巢上皮性囊腺性肿瘤鉴别诊断的客观辅助指标 ,并为其诊     

Lewis y抗原及整合素α5、β1在卵巢浆液性肿瘤中的表达及意义

目的:研究Lewis y抗原及整合素α5、β1在卵巢浆液性肿瘤中的表达及其意义.方法:应用免疫组织化学方法检测30例卵巢浆液性囊腺癌、11例交界性卵巢浆液性囊腺瘤、13例卵巢浆液性囊腺瘤、11例正常卵巢组织中Lewis y抗原及整合素α5、β1的表达情况.结果:Lewis y抗原在卵巢浆液性囊腺癌中的阳性表达率为90.0%,明显高于交界性(63.6%)、良性卵巢浆液性囊腺瘤(38.5%)及正常卵巢组织(0)中的表达(P均<0.05).整合素α5、β1在卵巢浆液性囊腺癌中的阳性表达率分别为86.7%和83.3%,高于两者在交界性(72.7%,72.7%)、良性卵巢浆液性囊腺瘤(69.2%,53.8%)及正常卵巢组织(36.4%,36.4%)中的表达(P均<0.05).Lewis y抗原及整合素α5、β1在卵巢浆液性囊腺癌中的表达呈显著正相关(P均<0.01).结论:Lewis y抗原及整合素α5、β1在卵巢浆液性囊腺癌中的阳性表达率普遍增高,且两者的表达呈显著性正相关.提示Lewis y抗原及整合素α5、β1在卵巢浆液性囊腺癌的发生、发展中起着重要作用.     

caspase-3表达及其与卵巢上皮性肿瘤组织细胞凋亡和增殖的关系

目的 :探讨caspase 3与卵巢上皮性肿瘤发生、发展的关系。方法 :利用免疫组化(SP)法和TdT介导的dUTP缺口末端标记(TUNEL)技术 ,检测 112例卵巢上皮性肿瘤组织中caspase 3和PCNA的表达水平及细胞凋亡情况。结果 :caspase 3在卵巢恶性肿瘤中的表达 ( 4 4 4% ) ,明显低于良性肿瘤 ( 81 8% ,P<0 0 1) ;在低分化卵巢癌中的表达 ( 61 5 % ) ,明显高于高分化卵巢癌 ( 2 3 5 % ,P <0 0 5 ) ;在晚期卵巢癌中的表达 ( 5 7 9% ) ,明显高于早期卵巢癌 ( 2 4 0 % ,P <0 0 5 ) ;在有淋巴结转移癌中的表达 ( 5 6 4% ) ,明显高于无淋巴结转移癌中的表达 ( 3 3 3 % ,P <0 0 5 )。凋亡指数与增殖指数呈正相关 (r =0 467,P <0 0 1) ,与cas pase 3的表达呈正相关 (r =0 5 97,P <0 0 1)。结论 :caspase 3与卵巢上皮性肿瘤的细胞凋亡密切相关 ,参与细胞凋亡的调节机制 ,在卵巢上皮性肿瘤恶变的过程中发挥作用 ,并与恶性程度关系密切 ,有可能成为卵巢癌预后评估的参考。     

散发性卵巢上皮性癌BRCA1基因表达的研究

目的 :探讨在散发性卵巢上皮性癌中BRCA1基因的mRNA及蛋白表达是否改变 ,并研究其与临床病理的关系。方法 :应用RT PCR、S -P免疫组织化学法检测 50例卵巢上皮性癌、1 1例良性卵巢肿瘤组织、1 0例正常卵巢组织中BRCA1基因mRNA和蛋白的表达水平。结果 :卵巢癌组织、良性肿瘤组织及正常组织中BRCA1mRNA的表达相对水平分别为 0 .6688± 0 .2 2 32、0 .92 64± 0 .1 398和 1 .0 4 4 0± 0 .2 1 82 ,而BRCA1蛋白的表达率分别为 30 0 % ,90 .9% ,1 0 0 % ;卵巢癌组织中BRCA1基因的表达水平显著低于良性肿瘤及正常卵巢组织 (P <0 .0 1 )。另外 ,随着卵巢癌恶性程度升高 ,BRCA1基因表达缺失明显增多 (P <0 .0 5) ;同时有淋巴结转移的癌组织 ,表达也明显减少甚至缺如。结论 :BRCA1基因转录及翻译水平的下调在散发性卵巢癌发生发展中有重要意义 ;同时其表达的减弱与卵巢上皮性癌病理学分级有关 ,提示预后较差。     

Expressions of beta-catenin, APC Protein, C-myc and Cyclin D1 in Ovarian Epithelial Tumor and Their Implication

Objective： To investigate the expressions of beta-catenin, protein APC （adenomatous polyposis coil protein）, c-myc and cyclin D1 and their implication in ovarian epithelial tumor. Methods： Immunohistochemical staining with SP method was conducted to identify the expressions of beta-catenin, APC protein, c-myc and cyclin D1 in ovarian epithelial tumor in 48 cases. Results： The abnormal expression rate of beta-catenin in malignant and borderline ovarian epithelial tumors was higher than that in benign epithelial tumors （P〈0.01）. The expression rates of c-myc and cyclin-D1 in ovarian malignant and borderline epithelial tumors were higher than those in benign epithelial tumors too（P〈0.05）. The prevalence of APC protein positive expression in benign epithelial tumors were significantly greater than that in malignant epithelial tumors （P〈0.05）. A significant negative correlation was found between beta-catenin and APC protein in ovarian epithelial tumors; while a significant positive correlation was found between beta-catenin, c-myc and cyclin-D1 in ovarian epithelial tumor （P〈0.05）. Conclusion： The abnormal expressions of Beta-catenin, APC protein, c-myc and cyclin-D1 might be used to indicate the malignance transform of ovarian epithelial tumors.     

Expression and correlation of Lewis y antigen and TGF-β1 in ovarian epithelial carcinoma

Lewis y is a difucosylated oligosaccharide carried by glycoconjugates on the cell surface. Elevation of Lewis y is frequently observed in epithelial-derived cancers. This study aimed to detect the expression and clinical significance of the Lewis y antigen and TGF-β1 (transforming growth factor β1) in ovarian epithelial tumors, and to evaluate the correlation between them. Immunohistochemical staining was used to detect the expression of Lewis y antigen and TGF-β1 in 60 cases of ovarian epithelial malignant tumors, 20 cases of borderline ovary tumors, 20 cases of benign ovary tumors and 10 cases of normal ovarian tissues. An immunofluorescence double labeling method was also used to detect the correlation between Lewis y antigen and TGF-β1. The positive rates of Lewis y antigen in ovarian epithelial cancer tissues was 88.33%, significantly higher compared to those of borderline ovarian tumors (60.00%) (P<0.05), benign ovarian tumors (35.00%) (P<0.01) and normal ovarian tissues (0%) (P<0.01). Its expression was not associated with clinical parameters; the positive rates of TGF-β1 in ovarian epithelial cancers were 78.33%, significantly higher compared to those of benign ovarian tumors (65.00%) (P<0.05) and normal ovarian tissues (40.00%) (P<0.05); the positive rates of the TGF-β1 and Lewis y were not associated with metastasis of lymph nodes and histological types, differentiation degree and clinical stage (P>0.05). Expression of Lewis y antigen and TGF-β1 was significantly positively associated with epithelial carcinoma. Close correlation between Lewis y, TGF-β1 and ovarian cancer was observed. Altered expression of Lewis y antigen may cause changes in TGF-β1 expression. Lewis y can increase the growth of ovarian cancer cells and the invasion ability by promoting TGF-β1 abnormal expression and by promoting angiogenesis and a change in its signal transduction pathway. This study provides theoretical evidence for the development of ovarian cancer biological treatments.     

Expression of Vascular Endothelial Growth Factor-C and Vascular Endothelial Growth Factor Receptor-3 in Ovarian Epithelial Tumors

Objective： To explore the role of vascular endothelial growth factor-C （VEGF-C） in the process of angiogenesis, lymphangiogenesis and lymphatic metastasis in epithelial ovarian tumors. Methods： In situ hybridization and immunohistochemical staining for VEGF-C were performed in 30 epithelial ovarian carcinomas, 9 borderline tumors and 26 benign tumors. Endothelial cells were immunostained with anti-VEGFR-3 pAb and anti-CD31 mAb, and VEGFR-3 positive vessels and microvessel density （MVD） were assessed by image analysis. Results： VEGF-C mRNA and protein expression were detected in cytoplasm of carcinoma cells. VEGF-C mRNA and protein expression in ovarian epithelial carcinomas were significantly higher than those in borderline tumors and benign tumors （P〈0.05 or P〈0.01）. In ovarian epithelial carcinomas, VEGF-C protein expression, VEGFR-3 positive vessels and MVD were significantly higher in the cases of clinical stage Ⅲ-Ⅳ and with lymph node metastasis than those of clinical stage Ⅰ-Ⅱ and without lymph node metastasis respectively （P〈0.05 or P〈0.01）. VEGFR-3 positive vessels and MVD were significantly higher in VEGF-C protein positive tumors than negative tumors （P〈0.05）. VEGFR-3 positive vessels was significantly correlated with MVD（P〈0.01）. Conclusion： VEGF-C might play a role in lymphatic metastasis via lymphangiogenesis and angiogenesis in epithelial ovarian tumors, and VBEGF-C could be used as a biologic marker of metastasis in ovarian epithelial tumors.     

Carbonyl reductase as a significant predictor of survival and lymph node metastasis in epithelial ovarian cancer

We have recently reported a novel function for carbonyl reductase (CR), namely, its ability to modulate the metastatic potential of malignant mouse cells. Because there are currently no data addressing a similar function for CR in human cancers, the aim of this study was to assess a correlation between survival and metastasis, and CR level in epithelial ovarian cancer. Using anti-CR antibody, immunohistochemical staining was performed on 73 epithelial ovarian cancers, 13 borderline malignant tumours, and 25 benign ovarian tumours for a total of 111 specimens. The combined rate for strongly and weakly positive reactions for CR was 32.0% for benign tumours, 38.5% for borderline malignant tumours, and 61.6% for ovarian cancers. The CR-positive rate was 35.7% (weakly positive alone) for ovarian cancers with retroperitoneal lymph node (RLN) metastasis and 67.8% for those without RLN metastasis (P< 0.05). The 5-year survival rate was 62.7% for the patients with CR-negative cancer and 86.1% for those with CR-positive cancer (P< 0.05). The present results indicate that decreased CR expression in epithelial ovarian cancer is associated with RLN metastasis and poor survival.     

转录激活因子-4、第二个线粒体衍生的半胱氨酸蛋白酶激活剂在卵巢癌组织中的表达及临床意义

目的探讨卵巢癌组织中转录激活因子-4(ATF-4)、第二个线粒体衍生的半胱氨酸蛋白酶激活剂(SMAC)蛋白的表达情况及临床意义。方法收集90例卵巢癌患者的卵巢癌组织标本和90例卵巢良性肿瘤患者的良性肿瘤组织标本。采用免疫组化染色法检测两种组织中ATF-4、SMAC蛋白的表达情况,并对卵巢癌组织中ATF-4、SMAC蛋白表达与卵巢癌患者病理特征的关系进行分析。结果免疫组化染色结果显示,卵巢癌组织中ATF-4的阳性表达率明显高于卵巢良性肿瘤组织(P﹤0.01)。卵巢癌组织中SMAC蛋白的阳性表达率明显低于卵巢良性肿瘤组织(P﹤0.01)。FIGO分期为Ⅲ~Ⅳ期、有淋巴结转移、组织学分级为G3级的上皮性卵巢癌患者上皮性卵巢癌组织中ATF-4蛋白的阳性表达率均高于FIGO分期为Ⅰ~Ⅱ期、无淋巴结转移、组织学分级为G1~G2级的患者(P﹤0.05);FIGO分期为Ⅲ~Ⅳ期、有淋巴结转移、组织学分级为G3级的上皮性卵巢癌患者上皮性卵巢癌组织中SMAC蛋白的阳性表达率均明显低于FIGO分期为Ⅰ~Ⅱ期、无淋巴结转移、组织学分级为G1~G2级的患者(P﹤0.01);不同病灶直径的上皮性卵巢癌组织中ATF-4、SMAC蛋白的阳性表达率比较,差异均无统计学意义(P﹥0.05)。结论上皮性卵巢癌组织中ATF-4蛋白的表达上调,SMAC蛋白的表达下调,且ATF-4、SMAC蛋白表达可能与上皮性卵巢癌患者的病情进展有一定关系。     

上皮性卵巢肿瘤RASSF1A基因甲基化与蛋白表达的关系及意义

目的:检测上皮性卵巢肿瘤中RASSF1A基因启动子CpG岛的甲基化状态,并探讨基因异常甲基化与蛋白表达的关系及其意义。方法:运用甲基化特异性PCR(MSP)方法对62例上皮性卵巢癌、21例交界性囊腺瘤及30例良性囊腺瘤的RASSF1A基因启动子甲基化状态进行检测,免疫组化S-P法检测上述标本中RASSF1A蛋白表达,并结合肿瘤生物学行为进行分析。结果:上皮性卵巢癌组织、卵巢交界性囊腺瘤组织中RASSF1A基因启动子区甲基化率(58.06%、42.85%)显著高于卵巢良性囊腺瘤组织(13.33%),差异有统计学意义(P<0.05)。RASSF1A基因启动子区甲基化与上皮性卵巢癌的细胞分化程度和临床分期密切相关(P<0.05)而与组织类型和患者年龄及绝经与否无相关性(P>0.05);RASSF1A基因甲基化与其蛋白表达下降一致。结论:卵巢癌组织中存在RASSF1A基因启动子CpG岛的异常甲基化,可能和该蛋白表达缺失的主要原因,是导致该基因失活的重要机制之一。     

Expressions of Beta-catenin, E-cadherin and MMP-7 in ovarian epithelial tumors

Objective： To investigate the expressions of Beta-catenin, E-cadherin and MMP-7 and their implications in ovarian epithelial tumor. Methods： Immunohistochemical staining with SP method was conducted to identify the expressions of Beta-catenin, E-cadherin and MMP-7 in ovarian epithelial tumor in 66 cases. Results： The abnormal expression rate of Beta-catenin in malignant ovarian epithelial tumor was higher than those in borderline and benign epithelial tumors （P〈0.05）. The positive rates of E-cadherin in benign and borderline ovarian epithelial tumors were significantly greater than that in malignant epithelial tumor. The expression rates of MMP-7 in malignant and borderline ovarian epithelial tumors were higher than that in benign epithelial tumor （P〈0.05）. Conclusion： The abnormal expressions of Beta-catenin, E-cadherin and MMP-7 might be used to indicate the malignance transform of ovarian epithelial tumors, but they have no significant correlation with peritoneal dropsy invasion, caul invasion and appendant invasion in ovarian epithelial tumor.     

上皮性卵巢癌组织中乙酰肝素酶的表达及其与预后的关系

目的 研究乙酰肝素酶(Hpa)在上皮性卵巢癌组织中的表达,分析其与卵巢癌临床病理特征及预后的关系.方法 采用RT-PCR和免疫组化方法检测乙酰肝素酶mRNA及蛋白在上皮性卵巢癌、卵巢良性肿瘤和正常卵巢组织中的表达.结果 Hpa mRNA在卵巢癌组织中的阳性表达率为73.33%(33/45),相对表达水平为0.65±0.37,均明显高于卵巢良性肿瘤和正常卵巢组织(0.39±0.49/0.31±0.52),差异有显著性(P均<0.05).Hpa蛋白主要定位于细胞胞质,在卵巢癌组织中染色以(++)-(+++)为主(44.44%),明显强于卵巢良性肿瘤(13.33%)和正常卵巢组织(0.00%).有淋巴结转移的癌组织Hpa蛋白及mRNA水平均高于无淋巴结转移组,FIGO分期Ⅲ-IV的癌组织表达高于I-Ⅱ组,均有统计学意义(P<0.01).Log-rank 分析显示Hpa 表达阳性者的累积生存率明显低于阴性者,差异有显著性(P<0.05).结论 Hpa在上皮性卵巢癌组织中高表达,并且与卵巢癌的临床分期、淋巴结转移及病人的生存期密切相关,可作为判断上皮性卵巢癌生物学行为和预后的重要参考指标.     

GLUT-1和DNA-PKcs在卵巢浆液性肿瘤组织中的表达及其意义

背景与目的:已知肿瘤细胞生长所需能量是通过葡萄糖转运体蛋白1(glucose transporter protein 1,GLUT-1)完成的葡萄糖代谢来提供的.另外,参与基因损伤修复的催化亚单位--DNA蛋白激酶(DNA-dependent protein kinase catalytic subunit,DNA-PKcs)在肿瘤形成中也起着非常重要的作用.本研究旨在探讨GLUT-1和DNA-PKcs在卵巢浆液性肿瘤组织中的表达及其与肿瘤生物学行为的关系和意义.方法:免疫组化方法检测80例卵巢浆液性肿瘤组织中GLUT-1、DNA-PKcs的表达,分析其异常表达与临床病理参数之间的相关性.以正常卵巢组织20例为对照.结果:正常卵巢组织GLUT-1表达全阴性,DNA-PKcs表达全阳性.GLUT-1在良性、交界性、恶性卵巢浆液性肿瘤中的表达呈增高的趋势,与卵巢浆液性肿瘤的发生发展呈正相关(rs=0.943,P＜0.01);在恶性肿瘤中的阳性率(100%)明显高于交界性(55%).DNA-PKcs在良性、交界性和恶性卵巢浆液性肿瘤中的阳性率分别为95%、90%、60%,差异有统计学意义(P＜0.01).GLUT-1与DNA-PKcs的表达呈负相关(rs=-0.270,P＜0.01).GLUT-1表达与临床分期、腹腔种植、腹水、淋巴结转移均相关(P＜0.05);DNA-PKcs仅与临床分期和淋巴结转移相关(P＜0.05),与腹水、腹腔种植无关(P＞0.05).结论:GLUT-1的异常表达和DNA-PKcs的丢失与卵巢浆液性肿瘤恶变相关.