卵巢肿瘤组织中p53和P－糖蛋白的表达及其临床意义

目的：评价卵巢肿瘤组织中突变型ｐ５３基因和Ｐ－糖蛋白（Ｐ－ｇｐ）表达的临床病理意义及其相互关系。方法：采用免疫组织化学法测定卵巢恶性肿瘤５３例，卵巢良性肿瘤２０例和正常卵巢组织１７例的ｐ５３和Ｐ－ｇｐ的表达，并与临床病理因素进行相关分析。结果：１．卵巢恶性肿瘤组织中ｐ５３和Ｐ－ｇｐ阳性表达率分别为４６．７％和３５．８％，卵巢良性肿瘤和正常卵巢组织中则无一例ｐ５３和Ｐ－ｇｐ表达。２．Ⅲ～Ⅳ期患者和低分化卵巢恶性瘤组织中ｐ５３表达阳性率高于Ⅰ～Ⅱ期和高、中分化者，而Ｐ－ｇｐ表达与临床分期、组织学类型和分级无明显相关性。３．Ｐ－ｇｐ表达阳性和阴性的卵巢恶性肿瘤患者，对化疗的有效率分别为３１．６％和６４．７％，而ｐ５３阳性表达与化疗效果无明显相关性。结论：组织中的ｐ５３和Ｐ－ｇｐ表达测定对判断卵巢恶性肿瘤的预后和对化疗的敏感性有一定的价值。     

卵巢上皮性癌P-糖蛋白表达及其与化疗耐药性的关系

目的：了解多药耐药ＭＤＲ基因在卵巢癌中的表达及表达产物Ｐ－糖蛋白（Ｐ－ｇｐ）与化疗耐药性的关系。方法：用免疫组化法测定卵巢癌５４例手术切除肿瘤组织Ｐ－ｇｐ的表达情况，分析其与临床、病理及化疗效果的关系。结果：Ｐ－ｇｐ表达阳性者２４例，占４４．４％，Ｐ－ｇｐ表达与临床分期、病理分级、术后残余瘤大小无关。Ｐ－ｇｐ阳性与阴性者所接受的化疗无差异。术前用过与ＭＤＲ有关药物化疗者，Ｐ－ｇｐ阳性率为６９．２％，高于未化疗者（３６．６％）。Ｐ－ｇｐ阳性者化疗近期疗效差，化疗有效率为４７．１％，低于Ｐ－ｇｐ阴性者的８１．８％，但两组预后无差异。结论：测定Ｐ－ｇｐ表达有助于预测肿瘤的耐药性及指导化疗药物的选择。Ｐ－ｇｐ表达是化疗耐药原因之一。     

卵巢恶性肿瘤组织谷胱甘肽S转移酶的表达及其与化疗耐药的关系

目的检测卵巢肿瘤组织中谷胱甘肽Ｓ转移酶（ＧＳＴ－π）的表达,并探讨其与化疗耐药的关系。方法采用免疫组化ＳＰ法对５３例卵巢恶性肿瘤、２０例卵巢良性肿瘤和１７例正常卵巢组织进行ＧＳＴ－π检测,并对相关的临床病理因素进行分析。结果（１）卵巢恶性肿瘤组织中ＧＳＴ－π表达阳性率为６０．４％,卵巢良性肿瘤组织中ＧＳＴ－π表达阳性率仅为１０．０％,而正常卵巢组织中则无一例ＧＳＴ－π表达阳性;（２）不同病理类型、临床分期和术后残留灶大小的恶性肿瘤组织中ＧＳＴ－π表达阳性率相比较,差异无显著性;（３）恶性肿瘤中,初治和复发的ＧＳＴ－π表达阳性率分别为４７．２％和８８．２％;（４）ＧＳＴ－π表达阳性的患者对化疗的有效率低于ＧＳＴ－π表达阴性的患者,前者为３７．５％（１２／３２）,而后者为７６．２％（１６／２１）;（５）ＧＳＴ－π表达阳性的患者治疗后１年及３年生存率低于ＧＳＴ－π表达阴性者。结论卵巢恶性肿瘤组织中ＧＳＴ－π表达与其化疗耐药有关。ＧＳＴ－π表达的检测对临床判断化疗敏感性和预后有一定的参考价值。     

C-erbB_2、p16基因在卵巢肿瘤中的表达及其临床意义的研究

目的：探讨卵巢肿瘤中癌基因Ｃ－ｅｒｂＢ２及抑癌基因ｐ１６的表达及其与临床病理特征及患者预后的关系。方法：用免疫组化ＡＢＣ法，分析４９份卵巢恶性肿瘤、１２份交界性肿瘤、１５份良性肿瘤石蜡包埋组织中Ｃ－ｅｒｂＢ２、ｐ１６的表达情况。结果：①在卵巢恶性肿瘤、交界性肿瘤、良性肿瘤之间Ｃ－ｅｒｂＢ２的表达差异有显著性（Ｐ＜０．０１）。Ｃ－ｅｒｂＢ２的表达率及表达强度与组织分化程度患者及生存期有显著相关性（Ｐ＜０．０５），Ｃ－ｅｒｂＢ２的过度表达见于恶性程度高、组织分化差、患者预后不良的肿瘤中。②在卵巢恶性肿瘤、交界性肿瘤、良性肿瘤之间ｐ１６的表达差异有显著性（Ｐ＜０．０１）。其表达强度与组织分化程度及临床分期有显著相关性，在恶性程度较高、组织分化差、较晚期的肿瘤中ｐ１６的表达较弱。结论：癌基因Ｃ－ｅｒｂＢ２及抑癌基因ｐ１６在卵巢癌组织中广泛存在，并与其临床病理指标之间有一定的相关性，提示这些基因在卵巢癌的发生、发展中起一定作用，并对患者预后的判断及治疗有一定的指导意义。对各基因之间复杂的相互作用、协同作用有待进一步研究。     

20例原发性输卵管癌组织中ER、PR与p~(53)蛋白的表达

目的：分析原发性输卵管腺癌的ＥＲ、ＰＲ及ｐ５３蛋白的表达，研究其与该肿瘤的临床分期、病理分级及患者预后的关系。方法：材料选自２０份原发性输卵管腺癌及１０份正常输卵管组织的存档石蜡包埋标本，采用免疫组化法检测。结果：在２０份原发性输卵管癌标本中，ＥＲ、ＰＲ的阳性表达率分别为２５％和１５％，稍高于正常输卵管组的１０％，但差异无显著性（Ｐ＞０．０５）；ｐ５３蛋白在癌症组的阳性表达率为４０％，对照组则无１例阳性表达，差异有显著性（Ｐ＜０．０５）；ｐ５３蛋白在晚期、分化差及预后不良的输卵管癌病例中的表达呈上升趋势，但未达到统计学意义（Ｐ＞０．０５）；对侧输卵管炎症的存在与ｐ５３蛋白的阳性表达呈负相关（Ｐ＜０．０５）。结论：在原发性输卵管癌中，ＥＲ、ＰＲ有一定程度的表达，但均较低；ｐ５３基因的突变可能参与了该肿瘤的发生，并可作为综合判断其恶性程度及患者预后的指标之一。     

乙酰肝素酶mRNA在卵巢上皮性肿瘤中的表达及其临床病理相关性研究

目的探讨乙酰肝素酶（Hpa）mRNA在卵巢上皮性癌中的表达及与临床病理的相关性。方法应用逆转录-聚合酶链反应（RT-PCR）方法检测41例卵巢上皮性癌、17例卵巢良性肿瘤和22例正常卵巢组织中Hpa mRNA表达，并分析其与卵巢癌临床病理的相关性。结果①卵巢上皮性癌组织、良性肿瘤组织和正常组织Hpa mRNA阳性表达率分别为58．54％、29．41％和22．73％。癌组织Hpa mRNA阳性表达率显著高于良性组及正常组（P〈0．01），良性组与正常组Hpa mRNA阳性表达率比较，差异无显著性（P〉0．05）。②Ⅲ～Ⅳ期卵巢恶性肿瘤患者中Hpa mRNA的阳性表达率显著高于Ⅰ～Ⅱ期患者（P〈0．05）。低分化肿瘤组织中Hpa mRNA的阳性表达率显著高于中、高分化者（P〈0．05）。③Long-rank分析显示Hpa mRNA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）。结论卵巢上皮性癌中Hpa mRNA阳性表达率明显增高，并与卵巢上皮性癌病情进展有关，可作为卵巢上皮性癌转移和预后的一个重要预测指标。     

p~(53)与C-erbB_2、C-ras、C-myc在卵巢粒层细胞瘤中的过度表达及其临床意义

目的：了解ｐ５３及Ｃ－ｅｒｂＢ２、Ｃ－ｒａｓ、Ｃ－ｍｙｃ在卵巢粒层细胞瘤中的表达及与此瘤发生、发展的关系。方法：采用单克隆抗体免疫组化技术，对２５份卵巢粒层细胞瘤组织进行ｐ５３、Ｃ－ｅｒｂＢ２、Ｃ－ｒａｓ及Ｃ－ｍｙｃ表达的检测，分析基因表达与临床－病理指标及患者预后的关系。结果：２５例卵巢粒层细胞瘤中ｐ５３、Ｃ－ｅｒｂＢ２、Ｃ－ｒａｓ、Ｃ－ｍｙｃ的过度表达率分别为５６％、５６％、４８％、４８％。Ⅲ～Ⅳ期ｐ５３的过度表达高于Ⅰ～Ⅱ期；有残余瘤者较无残余瘤者显著增高。Ⅲ～Ⅳ期的Ｃ－ｅｒｂＢ２过度表达率显著高于Ⅰ～Ⅱ期者。高分化组的Ｃ－ｒａｓ基因过度表达率显著高于低分化组。未发现Ｃ－ｍｙｃ的表达与临床－病理各指标有关。两种及两种以上基因同时表达者显著高于单基因表达者。ｐ５３与Ｃ－ｅｒｂＢ２及Ｃ－ｍｙｃ过度表达间呈正相关。临床分期及Ｃ－ｅｒｂＢ２的过度表达是独立影响患者预后的因素。结论：ｐ５３及Ｃ－ｅｒｂＢ２、Ｃ－ｒａｓ、Ｃ－ｍｙｃ的表达对卵巢粒层细胞瘤的发生、发展及患者预后有一定的影响。     

上皮性卵巢癌中p53蛋白表达的研究

用免疫组化ＡＢＣ法检测了卵巢癌中ｐ５３蛋白的表达，结果卵巢癌中ｐ５３蛋白阳性率为５３％。有癌转移的淋巴结中ｐ５３蛋白阳性率为５０％。无癌转移的淋巴结和正常卵巢组织中ｐ５３蛋白染色均为阴性。１例透明细胞癌中检出了ｐ５３蛋白的强阳性表达。ｐ５３蛋白在卵巢癌组织中的表达与在相应的有癌转移的淋巴结组织中的表达有较好的相关性。ｐ５３蛋白阳性表达在各临床分期、组织学分级、组织学类型、病变部位及年龄组间无显著差异，说明ｐ５３蛋白阳性表达在卵巢癌的发展过程中可能起着重要作用。     

P^53与C—erbB2,C—ras,C—myc在卵巢粒层细胞瘤中的过度表达及…

目的：了解ｐ＾５３及Ｃ－ｅｒＢ２，Ｃ－ｒａｓ，Ｃ－ｍｙｃ在卵巢粒层细胞瘤中的表达及此瘤发生，发展的关系，方法：采用单克隆抗体免疫组化技术，对２５份卵巢粒层细胞瘤组织进行ｐ＾５３，Ｃ－ｅｒＢ２，Ｃ－ｒａｓ及Ｃ－ｍｙｃ表达的检测，分析基因表达与临床一病理指标及患者预后的关系，结果：２５例卵巢粒层细胞瘤中，Ｐ＾５３，Ｃｅｒｂ２，Ｃ－ｒａｓ，Ｃ－ｍｙｃ的过度表达率分别为５６％，５６％，４８％，４８％，Ⅲ～     

抑癌基因p53在上皮性卵巢癌中的过度表达及临床意义

用免疫组织化学方法检测１１０例上皮性卵巢癌中抑癌基因ｐ５３蛋白的过度表达，以探讨其在上皮性卵巢癌发生及演进中的作用及其临床意义。结果显示：ｐ５３蛋白过度表达在上皮性卵巢癌中为５２．７％，而在正常及良性肿瘤中为阴性。不同期别卵巢癌中，ｐ５３蛋白过度表达阳性率不同，早期癌（Ｉ￣Ⅱ）中为２７．９％，晚期癌（Ⅲ￣Ⅳ）中为７０．６％，差异非常显著（Ｐ〈０．０１）。ｐ５３蛋白过度表达在不同分化程度的卵巢癌中的     

钙黏素6基因在卵巢肿瘤组织中的表达及突变的研究

目的　通过研究卵巢肿瘤组织中钙黏素 (cadherin) 6基因的表达、突变及其临床意义 ,以寻找与卵巢肿瘤发生相关的分子水平标志物。方法　应用RT PCR技术和PCR 单链构象多态性方法分别检测恶性卵巢肿瘤组织 (4 1份 )、良性卵巢肿瘤组织 (15份 )、正常卵巢组织 (17份 )中cadherin 6mRNA的表达及cadherin 6基因的突变情况 ,并分析其临床意义。结果　正常卵巢组织、良性卵巢肿瘤组织、恶性卵巢肿瘤组织中cadherin 6mRNA阳性率分别为 71%、5 3%、2 4 % ,前两者显著高于后者 (P<0 0 5 )。cadherin 6mRNA阳性率与恶性卵巢肿瘤手术病理分期有关 ,Ⅲ～Ⅳ期恶性卵巢肿瘤组织中 ,cadherin 6mRNA阳性率 (5 % )显著低于Ⅰ～Ⅱ期 (4 5 % ,P <0 0 1)。 4 1例恶性卵巢肿瘤患者中 ,2例出现cadherin 6基因突变 ,而在正常卵巢组织和良性卵巢肿瘤组织中无cadherin 6基因突变。结论　cadherin 6mRNA在晚期恶性卵巢肿瘤组织中表达缺失。提示cadherin 6mRNA表达可作为判断恶性卵巢肿瘤预后的一个指标     

CyclinD1、C-erbB2及bcl-2基因在卵巢上皮性肿瘤中的表达及其临床意义

目的 :检测癌基因CyclinD1、C erbB2及bcl 2在卵巢上皮肿瘤中的表达 ,探讨它们在卵巢肿瘤发生、发展中的作用及临床、病理意义。方法 :应用免疫组化SP法检测72例恶性卵巢肿瘤、12例交界性卵巢肿瘤、2 1例良性肿瘤及 10例正常卵巢组织中Cy clinD1、C erbB2及bcl 2基因的表达情况。结果 :1.卵巢恶性、交界性及良性肿瘤中Cy clinD1阳性率依次为 2 7.78%、33.3%、9.5 2 %。恶性及交界性肿瘤阳性率明显高于良性肿瘤 ,其阳性率与组织学分级呈负相关 ,而与患者年龄、临床分期、组织学类型无关 ;2 .卵巢恶性、交界性及良性肿瘤中C erbB2的阳性率依次为 5 6 .9%、4 1.6 7%、14.2 8%。恶性及交界性肿瘤阳性率明显高于良性肿瘤 ,差异有显著性。C erbB2阳性表达在组织分化差及期别晚的肿瘤中较分化好、期别早者高 ;3.卵巢恶性、交界性、良性肿瘤中bcl 2的阳性表达率依次为 6 3.89%、5 0 %、2 8.5 %。恶性及交界性肿瘤与良性肿瘤之间的表达差异有显著性。组织分化差、期别早的肿瘤中bcl 2的阳性率较分化好、期别晚者高 ;4 .两种及两种以上基因同时表达率 (5 1.4 % )显著高于单基因表达 (2 7.79% )。CyclinD1与C erbB2基因表达呈负相关。结论 :CyclinD1、C erbB2及bcl 2基因在卵巢癌发生、发展中起重要作用 ,表明细胞?     

Type IV collagen and CD44v6 expression in benign, malignant primary and metastatic ovarian tumors: correlation with Ki-67 and p53 immunoreactivity

OBJECTIVE: Loss of basement membrane (BM) components, such as type IV collagen has been demonstrated in ovarian cancer, but the associations with other molecules like CD44v6, involved in metastatic process of ovarian carcinoma, have not been fully analyzed. This study investigates the expression of type IV collagen, CD44v6 molecule in correlation with p53 and Ki-67 presence in primary and metastatic lesion of ovarian carcinoma to define their role in metastases of ovarian carcinoma. METHODS: The expression of type IV collagen, CD44v6, p53, and Ki-67 was evaluated on frozen tissue sections from primary ovarian tumors (malignant n = 37, benign n = 16), metastatic lesions (n = 29) and ascitic fluid cells (n = 28). Protein expression of all studied biomarkers was evaluated in a subset of specimens using immunohistochemistry (IHC). RESULTS: Type IV collagen expression in the primary ovarian carcinoma was positively correlated with International Federation of Gynecology and Obstetrics (FIGO) stage and tumor grade. Significant difference was observed for type IV collagen immunoreactivity in carcinoma cells in effusions when compared to corresponding primary tumors (P < 0.001) and metastatic lesions (P < 0.001). Likewise down-regulation of type IV collagen expression was seen in primary ovarian carcinomas (P = 0.01), ascitic fluid cells (P < 0.001), and metastases (P = 0.003) when compared to benign ovarian neoplasms. CD44v6 expression was detected in a comparable percentage of primary carcinomas (51%) and metastatic lesions (52%). In cells isolated from ascitic fluid, CD44v6 immunopositivity was observed in 43% of cases. A comparative analysis of primary and metastatic tumors and carcinoma cells in effusion did not reveal differences in expression of CD44v6. Positivity of CD44v6 was found in 2/16 (12%) of benign ovarian neoplasms. There were no significant differences between CD44v6 expression in benign neoplasms compared to primary malignant tumors and metastases (P > 0.05). CD44v6 expression in primary ovarian carcinomas was associated with higher tumor grade (P = 0.01) and histological type of tumors (P = 0.01). An inverse relationship of type IV collagen expression with p53 and CD44v6 positivity in benign and malignant ovarian tumors was found (P > 0.01). Type IV collagen expression was inversely correlated with p53 status (P = 0.03) in metastatic lesions. A slight trend toward an inverse correlation between Ki-67 and type IV collagen expression was observed in both benign and malignant ovarian tumors and metastases. CONCLUSIONS: Our data suggest that observed inverse correlation of type IV collagen expression with p53, CD44v6, and slight with Ki-67 positivity in primary benign and malignant tumors indicates that these molecules may cooperate in the invasion and progression of ovarian carcinomas.     

血小板反应素-1在卵巢上皮癌组织的表达及与p53肿瘤抑制蛋白和肿瘤血管形成的关系

目的：检测血小板反应素-1（TSP-1）和p53肿瘤抑制蛋白在卵巢上皮癌的表达，并探讨其表达与肿瘤血管形成及患者预后的关系。方法：用免疫组化法检测57例原发性卵巢上皮癌组织和22例正常卵巢组织中TSP-1和p53蛋白的表达，并用CD34抗体免疫染色后对微血管密度（MVD）计数。结合随诊资料，回顾分析上述指标与卵巢上皮癌临床病理特征及3年存活率之间的关系。结果：卵巢上皮癌组织中TSP-1的阳性表达率低于正常卵巢组织（分别为47．4％和72．7％，P=0．042），且多为弱阳性表达；卵巢上皮癌组织中p53的阳性率为61．4％，正常卵巢组织未检测到p53蛋白。TSP一1表达和p53蛋白阳性与卵巢上皮癌的手，术病理分期、大网膜转移和癌性腹水相关。卵巢上皮癌组织的MVD高于正常卵巢组织（分别30．3土8．5和20．1±8．1，P=0．014）。TSP-1表达与MVD呈负相关（P〈0．001），p53蛋白阳性与MVD呈正相关（P〈0．001）。TSP-1表达与患者的3年存活率呈正相关（P=0．001），p53蛋白阳性与3年存活率呈负相关（P=0．002）。TSP-1阴性而p53蛋白阳性组患者的3年存活率明显低于TSP-1阳性而p53蛋白阴性组（分别为13．6％和78．6％，P〈0．001）。结论：卵巢上皮癌组织TSP-1和p53蛋白的表达与肿瘤血管形成有关，对上述分子的检测有助于临床判断卵巢上皮癌的生物学行为。     

P53-status in primary ovarian carcinomas, ovarian metastases of neoplasms in other sites and benign ovarian tumors: predictive value in comparison to histopathological parameters

OBJECTIVE: The purpose of this study was to determine whether the tumor suppressor gene p53 can be used as a prognosis factor to assess individual patient risk in primary ovarian carcinoma. MATERIALS AND METHODS: The concentration of the mutated, as well as the wild type p53 was examined in 98 cases of ovarian carcinoma. Among 98 ovarian tumors examined, 77 were primary carcinomas, 14 tumors were metastasis of foreign tumors, and 7 were benign ovarian tumors. The pan-53 ELISA from Fa. Dianova was used to test for the p53 protein. RESULTS: The p53 protein concentration exhibited a wide range in the different tissue samples. Benign tumors contained significantly lower p53 concentrations than malignant tumors. After the data was analyzed using Kaplan-Meier, a p53 concentration of 507.1 pg/ml was established as cut-off point for assessing cancer prognosis as good or poor. Patients exhibiting p53 concentrations over 507.1 pg/ml had a median life expectancy of 20 months, and patients exhibiting lower tumor concentrations of p53 had a life expectancy of over 70 months. A significant relationship between patient life expectancy could also be shown for tumor stage and type, whereas not for tumor grading. CONCLUSIONS: Based on the results of this study, the routine measurement of p53 may allow for a better prognostic assessment of life expectancy of patients with primary ovarian carcinoma.     

HPV and p53 expression in epithelial ovarian carcinoma

OBJECTIVES: Human papillomavirus is the causal factor for cervical cancer. However, the role of HPV infection in ovarian cancer is unclear. This study aimed to determine the presence of human papillomavirus (HPV) in ovarian cancer tissues along with the expression of tumor suppressor gene p53. We also investigated any possible association of HPV with p53 gene mutations in ovarian carcinoma. METHODS: Archived human ovarian cancer tissues (n = 40 cases of epithelial ovarian cancer) embedded in paraffin blocks were used. Controls were 32 non-malignant ovarian tumor tissue blocks. In situ hybridization (ISH) and immunohistochemistry (IHC) were used to detect the presence of HPV and p53 expression, respectively. RESULTS: Of the total, 37.5% (n = 15) of malignant and 28.1% (n = 9) of benign ovarian tumors were positive for HPV (OR: 1.5 CI: 0.5-4.1, p = 0.4). The difference was not statistically significant. However, p53 was detected in 72.5% (n = 29) of malignant cases compared to 37.5% (n = 12) of benign cases (OR: 4.3 CI: 1.6-11.9, p = 0.003). Furthermore, a positive correlation between HPV and p53 expressions in ovarian cancer tissue samples was detected (r = 0.47, p = 0.001). CONCLUSIONS: HPV does not seem to be a major component in the development of ovarian carcinoma, nevertheless HPV positivity seems to contribute to the pathogenesis in at least some ovarian carcinoma cases by way of interaction with tumor suppressor p53.     

上皮性卵巢肿瘤cyclin B1和p27的表达及其意义

目的:探讨cyclin B1和p27在上皮性卵巢肿瘤发生、发展及预后中的作用。方法:应用免疫组化S-P法检测正常卵巢(20例)、良性上皮性卵巢肿瘤(20)及恶性上皮性卵巢肿瘤(20例)中cyclin B1和p27的表达,分析其表达水平与肿瘤恶性程度、临床分期及淋巴转移间的关系。结果:cyclin B1在恶性上皮性卵巢肿瘤中的表达水平高于正常卵巢和良性肿瘤,差异有显著性(P<0.05);p27在正常卵巢、良性肿瘤和恶性肿瘤中的阳性表达呈显著性递减趋势(P<0.05);cyclin B1表达与肿瘤的临床分期及淋巴转移显著相关(P<0.05)。结论:cyclin B1高表达和p27低表达,可能与卵巢肿瘤的发生、发展密切相关。     

Expression and localization of aquaporin-5 in the epithelial ovarian tumors

OBJECTIVE: To investigate the expression and localization of aquaporin-5 (AQP5) in epithelial ovarian tumors and its clinic significance. METHODS: The expression of AQP5 protein and mRNA in 65 cases epithelial ovarian tumors and 13 cases normal tissue were measured by immunohistochemical technique, Western blotting and RT-PCR, respectively. RESULTS: AQP5 is mainly localized in the basolateral membranes of benign tumor cells, the apical and basolateral membrane of borderline cells and scattered in the membrane of malignant cells and almost no or weak staining in normal ovarian epithelium. The AQP5 expression in ovarian malignant and borderline tumors was significantly higher than that of benign tumors (P < 0.05) and normal tissue (P < 0.05). Of all the epithelial ovarian malignant tumors, the AQP5 expression in cases with ascites volume more than 1000 ml was higher than that of ascites volume less than 500 ml (P < 0.05). Increased AQP5 protein level was associated with lymph node metastasis (P < 0.05). There is a positive correlation between ascites amount and the expression of AQP5 protein and mRNA (P < 0.05), as well as lymph node metastasis and the expression of AQP5 protein and mRNA (P < 0.05). The AQP5 expression was not related with FIGO stage, grade and histological type (P > 0.05). CONCLUSION: The data suggest that overexpression of AQP5 play an important role in tumorigenesis of epithelial ovarian tumors, which may be related to the ascites formation of ovarian carcinoma.     

卵巢癌中p27kip1和Cyclin D1的表达与预后因素的相关性研究

目的　探讨 p2 7kip1、CyclinD1在卵巢癌发生、发展方面的意义。 方法　应用免疫组化染色及半定量分析的方法 ,检测 5 0例卵巢癌、19例卵巢良性上皮肿瘤、13例正常卵巢组织中的p2 7kip1、CyclinD1表达 ,及它们与上皮组织的良恶性、病理组织分级、临床分期的相关性。结果　正常卵巢组和卵巢良性肿瘤组间 ,p2 7、CyclinD1表达无明显差异 ;p2 7在正常卵巢组织和卵巢良性上皮肿瘤中高表达 ,在卵巢癌中表达降低 (P <0 0 5 ) ,且随着肿瘤分级、分期增高 (恶性程度增高 ) ,阳性表达率逐渐下降 ;而CyclinD1的表达则相反 ;两者在肿瘤中的表达呈负相关。结论　p2 7kip1表达下降、CyclinD1过表达可能在卵巢癌的发生发展中起重要作用 ,检测 p2 7kip1、CyclinD1在卵巢癌中的表达可预测该肿瘤生物学行为特征 ,可以作为预后指标     

膜联蛋白A8在卵巢上皮性浆液性肿瘤中的表达及临床意义

目的:检测膜联蛋白A8(Annexin A8,ANXA8)在卵巢组织中的表达,探讨其表达与卵巢上皮性浆液性恶性肿瘤患者临床病理参数及预后的相关性。方法:采用免疫组织化学法检测75例卵巢组织(正常卵巢组织组11例、卵巢浆液性良性肿瘤组13例、卵巢浆液性交界性肿瘤组17例、卵巢浆液性恶性肿瘤组34例)中ANXA8的表达,分析其与卵巢癌患者临床病理参数及疾病预后的关系。结果:ANXA8主要定位于细胞膜及细胞质,ANXA8在卵巢浆液性恶性肿瘤组中的高表达率(23/34,67.65%)明显高于正常卵巢组织组(1/11,9.09%)、卵巢浆液性良性肿瘤组(3/13,23.08%)及卵巢浆液性交界性肿瘤组(5/17,29.41%),差异有统计学意义(P分别为0.001、0.006、0.010)。在34例卵巢浆液性恶性肿瘤患者中,FIGOⅢ~Ⅳ期患者的ANXA8的高表达率(21/24,87.5%)明显高于FIGOⅠ~Ⅱ期患者(2/10,20.0%),差异具有统计学意义(P<0.001);盆腹腔残余病灶直径>1 cm患者的ANXA8高表达率(15/17,88.2%)明显高于残余病灶≤1 cm患者(8/17,41.2%),差异有统计学意义(P=0.010)。Kaplan-Meier生存分析表明,FIGO分期、淋巴转移、残余病灶、ANXA8的表达都是影响总生存期(OS)的重要因素(均P<0.05)。Cox多元回归分析表明ANXA8的高表达是影响卵巢浆液性恶性肿瘤患者预后的独立危险因素(P=0.019,HR=11.465,95%CI:1.498~87.757)。结论:ANXA8在卵巢上皮性浆液性恶性肿瘤组织中表达升高,且与卵巢癌不良预后有关,可用于临床监测卵巢上皮性浆液性恶性肿瘤患者病情变化。