首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 156 毫秒
1.
To investigate the immunophenotypings of malignant epithelial mesothelioma (MEM),and to seek the valuable markers in distinguishing peritoneal MEM from peritoneal metastatic ovari-an adenocarcinoma (OA) and colorectal adenocarcinoma (CA), immunohistochemical SP method was used to detect expressions of HBME-1, E-cadherin, CA19-9, MOC-31 and CK7 in paraffin-embedded tissues of 18 cases of MEM, 20 OA and 20 CA. The results showed that there was a sig-nificant difference in the expressions of E-cadherin, CA19-9 and MOC-31 between MEM and OA group (P<0.05). Similarly, the difference in the expression of HBME-1, E-cadherin, CA19-9,MOC-31 and CK7 between MEM and CA groups is significant (P<0.05). These results indicate that HBME-1 could be used as a positive marker in distinguishing MEM from CA. E-cadherin,CA19-9 and MOC-31 are considered to be useful negative markers in diagnostic distinction between MEM and metastatic adenocarcinomas, including OA and CA. CK7 is the best positive marker in distinguishing MEM from CA, but this marker appears to be valueless in discriminating MEM from OA.  相似文献   

2.
Most members of metastasis-associated geneshave been identified since1994.Alot of evidenceshowed that the expression of MTA1were elevatedin human metastatic breast cell lines and metastaticcancer tissues,such as breast,colorectal,gastric,and esophageal carcinomas.MTA2,which is ho-mologous to MTA1,is a component of the NuRDATP-dependent chromatin remodeling and histonedeacetylase complex.Specifically,MTA2modu-lates the enzymatic activity of the histone deacety-lase core complext[1].Altho…  相似文献   

3.
人肝癌中IGF—2表达与基因印迹异常调控的关系   总被引:8,自引:0,他引:8  
研究人肝癌中IGF-2表达特性及与其“基因印迹”状态变化的关系。方法采用Norhernblot限制性片段长度多态性结合PCR、RPA等方法对17例HCC和6例HCC细胞系进行了IGF-2基因表达,启动子特异性等位基因的表达和IGF-2“基因印迹”状态变化的研究。结果HCC中IGF-2表达的多样性(低表达,近似正常表达和过度表达)和胚胎性(启动子P3、P4重新活化和表达);1例HCC中IGF-2双等  相似文献   

4.
探讨抗凋亡基因BcL2 和原癌基因Cfos 在卵巢上皮性肿瘤发生发展中的作用及其临床意义,采用单克隆抗体免疫组化技术对42 例卵巢上皮组织进行BcL2 和Cfos 蛋白表达的检测。8 例正常卵巢组织均未检测出二基因产物的表达。BcL2 和Cfos 在良、恶性卵巢肿瘤组织中检出率分别为20% (2/10)、59-4% ;30% (3/10)、46-9% 。BcL2 阳性在良性恶性组织间差异显著(P<0-05)。二基因产物表达均随病理分级升高而增加,高中分化与低分化比较差异均极显著(P<0-01)。BcL2 阳性提示较好的预后(P<0-01)。Cfos 阳性预后欠佳(P<0-05)。二基因产物表达无相关性。结果表明,BcL2 和Cfos 在卵巢上皮性肿瘤的发生、发展、分化中起作用。BcL2 过表达预后较好,Cfos 过表达预后差,二基因产物表达可作为临床预后评估指标。  相似文献   

5.
To study the expression of p63 and cyclooxygenase-2 (cox-2) in skin tumors and evalu- ate the correlation between p63 and cox-2, the expressions of cox-2 and p63 were measured by streptavidin-peroxidase complex immunohistochemical technique in 17 cases of skin squamous cell carcinoma(SCC), 19 cases of Bowen's disease(Bowen), 11 cases of actinic keratosis(AK), 12 cases of seborreic keratosis(SK) and 13 specimens of normal skin. Our results showed that the expression of p63 in skin squamous cell carcinoma, Bowen's disease and actinic keratosis were significantly higher than that in seborreic keratosis, while the expression of p63 in seborreic keratosis was sig- nificantly higher than that in normal skin. The expression of cox-2 in skin squamous cell carcinoma, Bowen's disease and actinic keratosis were significantly higher than that in seborreic keratosis, while no statistical difference was noted in the expression of cox-2 between seborreic keratosis and normal skin. Cox-2 expression was positively correlated with the high p63 expression in malignant skin tu- mors. The increased expression of cox-2 and p63 may play an important role in the development of skin tumors and work synergetically in malignant skin tumors.  相似文献   

6.
目的:探讨C-erbB-2在卵巢癌发生和发展中的作用。方法:应用免疫组化S-P法检测了C-erbB-2在58例卵巢浆液性囊腺癌,10例交界性浆液性囊腺瘤,13例浆液性囊腺瘤中的表达情况,结果:C-erbB-2的表达在良性瘤和癌之间差异显著(P<0.001),而在放巢癌中的表达与组织分化和临床分期有关(P<0.05,P<0.001)。结论:C-erbB-2在卵巢癌的形成和发展中发挥着一定的作用,其检测对卵巢肿瘤的良恶性鉴别、 预后判断和指导治疗均有积极的意义。  相似文献   

7.
Effects of luwinizing hormone releasing hormone ( LHRH), estradiot benzoate (EB), prostaglandin (PGF2α) and the age of animals on the development of ovarian follicles in immature and mature guinea pigs were studied. Administration of 5ng LHRH / hr, 10 times a day, starting from 20-30 days Of age induced the flrst vaginal opening within 4 days, and 5 of the 10 animals had first ovulation. Tire results also show that appropriate doses of EB facilitated the development of ovary. The granulosa cells of guinea pigs at different ages were cocuttured with the pituitart, glands of mature ones in vitro. Results indicate that the responsiveness of granulosa cells of 20-day-guinea prgs to gonadotropins was similar to that of the matured ones. Effects of gonadotrophin on ovulation in hysterectomized and PGF2α or saline-treated animals were tested. Results demonstrate that when PGF2α was given simultaneously with hCG or FSH, 80% of the guinea pigs ovulawd and had fresh, healthy looking corpus tuteum. It is concluded that increased LHRH release from hypothatamus may be the key factor for tire onset of puberty in guinea prgs. EB and PGF2α can influence the development of the ovary.  相似文献   

8.
应用免疫组化方法,检测54例卵巢良性、交界性及恶性肿瘤组织中的CerbB2癌基因、P21蛋白(ras癌基因产物)、P53抑癌基因的表达状况,并分析其过度表达与肿瘤预后等诸因素间的关系。结果表明,CerbB2、P21、P53的表达率从良性、交界性至恶性肿瘤呈梯度升高,三者在卵巢恶性肿瘤组织中的过度表达率与其在良性肿瘤组织中比较,有极显著差异;与交界性肿瘤组织比较,亦有显著差异。三者的表达率在卵巢原发性和转移性恶性肿瘤中均无显著性差异。CerbB2的表达与卵巢恶性肿瘤患者的临床分期及淋巴结转移无关,而与病理分级有显著相关性。P21和P53的表达与卵巢恶性肿瘤患者的临床分期、病理分级及淋巴结转移均无显著相关性,但P53的过度表达均见于期别较晚、分化较差、淋巴结有转移的晚期肿瘤。提示CerbB2、P21和P53三种基因可能在卵巢肿瘤恶变过程中起重要作用,可作为早期诊断的检测指标之一。而CerbB2和P53的表达亦可能作为预后评价指标  相似文献   

9.
Isolated ovarian tissues from the common carp,Cyprinus carpio were incubated in vitro to obtain a discrete effect of four common toxicants of industrial origin,namely phenol,sulfide, mercuric chloride and cadmium chloride,on gonadotropin-induced alteration of nonesterified and esterified cholesterol and steroidogenic enzymes,△^5-3β-HSD and 17β-HSD activity.Stage Ⅱ ovarian tissue containing 30-40% mature oocytes were shown to be most responsive to gonadotropins in depleting only nonesterified cholesterol moiety and stimulating the activity of both.Safe doses of above mentioned toxicants when added separaetely to stage Ⅱ ovarian tissue with oLH(1μg/incubation)gonadotropin-induced depletion of nonesterified cholesterol and gonadotropin-induced stimulation of the activity of both enzymes was significantly inhibited.Esterified cholesterol remained almost unaltered,Findings clearly indicate the impairment of gonadotropin induced fish ovarian steroidogenesis by the four toxicants separately.  相似文献   

10.
Peroxisome proliferators(POPs),such as hypolipidemic drugs or industrial phthalate ester plasticizers,are widely known as non-genotoxic hepatocarcinogens in rodents.As one of the possible mechanisms of POP-induced carcinogenesis,the“Oxidative Stress” theory has bee postulated.In this review,in order to reconsider the significance of “Oxidative Stress”to POP-induced carcinogenesis,we focus on in vivo studies examining formation of 8-hydroxydeoxyguanosine(8-OH-dG),a marker of oxidative DNA damage with mutagenic potential,after treatment of rodents with POPs.Some studies clearly demonstrated that 8-OH-dG levels in the liver DNA were increased by OPO-treatments.Thee findings suggest that“Oxidative Stress could contribute as one factor to POP-induced carcinogenesis.Furthermore,we refer to other multiple biological changes caused by POP-treatment presumably contributing to the carcinogenic mechanisms,and consider possible roles of “Oxidative Stress” in the carcinogenesis process.  相似文献   

11.
目的:探讨卵巢上皮性肿瘤组织中Skp2和p27表达的意义以及Skp2和p27表达的相关性。方法:用免疫组化法分别检测卵巢腺瘤(n=20),交界性卵巢腺瘤(n=20),卵巢腺癌(n=50)标本Skp2和p27的表达。以年龄、病理分级、临床分期、病理类型和淋巴结转移作为卵巢腺癌的独立因素进行分析。结果:卵巢腺癌Skp2表达率与卵巢腺瘤和交界性卵巢腺瘤相比显著增高(P<0.01,P<0.01)。卵巢腺癌p27表达率与卵巢腺瘤和交界性卵巢腺瘤相比显著降低(P<0.01,P<0.01)。卵巢腺癌病理分级为Ⅱ~Ⅲ级者Skp2表达显著高于Ⅰ级者(P<0.05),临床分期Ⅲ~Ⅳ期者显著高于Ⅰ~Ⅱ期者(P<0.001)。卵巢腺癌病理分级为Ⅱ~Ⅲ级者p27表达显著低于Ⅰ级者(P<0.01),临床分期Ⅲ~Ⅳ期者显著低于Ⅰ~Ⅱ期者(P<0.05)。与无淋巴结转移者比较,有淋巴结转移者Skp2表达率较高(P<0.001),p27表达较低(P<0.05)。结论:卵巢腺癌Skp2呈高表达和p27呈低表达,卵巢腺癌中Skp2和p27表达呈负相关。Skp2的高表达和p27的低表达分别在人卵巢上皮癌的发生,发展中可能起一定的作用,并与预后相关。  相似文献   

12.
目的 研究粘蛋白MUC1在卵巢上皮性肿瘤的表达与临床病理参数之间的关系及其临床意义。方法 应用免疫组织化学SP法检测卵巢上皮性肿瘤 (良性、交界性、恶性 )中的MUC1的表达。结果 ①粘蛋白MUC1在卵巢良性、交界性、恶性上皮性肿瘤中的表达依次为 4 0 %、90 %、84 % ,交界性与恶性肿瘤明显高于良性肿瘤 (P =0 .0 0 0 1 )。②粘蛋白MUC1在恶性卵巢上皮性肿瘤的表达与WHO病理分级、FIGO临床分期、大网转移相关 (P <0 .0 5 )。③ 5 0例恶性上皮性肿瘤生存分析中 ,只有FIGO临床分期和MUC1的表达具有独立的预后意义。结论 粘蛋白MUC1在恶性卵巢上皮性肿瘤中呈高表达 ,其表达强度与WHO病理分级、FIGO临床分期、大网转移相关 ,因此 ,MUC1的表达可作为卵巢上皮性肿瘤的良、恶性的检测指标。  相似文献   

13.
目的 初步探讨卵巢上皮性肿瘤神经内分泌分化及其机制.方法 应用免疫组织化学SP法、双重免疫组织化学SAP法检测79例卵巢上皮性肿瘤和22例人正常卵巢组织嗜铬素A(CgA)、突触素(Syn)及CgA/上皮细胞膜抗原(EMA)表达,应用图像分析仪定量分析其表达情况.结果 (1)卵巢上皮性肿瘤中CgA表达阳性率59.4%,Syn表达阳性率65.36%,在恶性肿瘤其表达与临床分期及组织分级有关(P<0.01);明显高于正常卵巢组(P=0.000,<0.01),正常卵巢组织见少量的神经内分泌细胞(NECs),卵巢上皮性肿瘤NECs数量及染色强度均高于正常卵巢组(P<0.05);(2)卵巢上皮性肿瘤组织中可见CgA/EMA双重表达的细胞.结论 卵巢上皮性肿瘤的神经内分泌分化是肿瘤异质性的表现之一,卵巢上皮性肿瘤中存在着可向上皮和/或向神经内分泌分化的"多向分化细胞",提示卵巢上皮性肿瘤的神经内分泌分化可能是上皮细胞恶性转化过程中多向分化的结果.  相似文献   

14.
Study on tumor angiogenesis in epithelial ovarian carcinoma   总被引:1,自引:0,他引:1  
The tumor angiogenesis has been recognized asthe neovascularization induced by tumor cells, and finally the formation of capillary network to supply thetumor mass. Recently, it has been shown that thetumor angiogenesis played a key role in the occurrence, development, metastasis and prognosis of tumor. Several studies about epithelial ovarian tumorangiogenesis have been reported abroad, but their results are in controversy['J.' The purpose of this studywas to investigate tumor angiogenesis in …  相似文献   

15.
基质金属蛋白酶2及CD147在卵巢上皮性肿瘤中的表达   总被引:10,自引:4,他引:6  
贺书云  辛晓燕  王健 《医学争鸣》2001,22(5):435-438
目的:了解基质金属蛋白酶(MMP-2)及CD147在卵巢良、恶性上皮性肿瘤中的表达,探讨其与卵巢癌转移发生的关系。方法用免疫组化SP法对47例卵巢癌组织、19例交界性上皮性卵巢肿、17良性上性卵巢肿瘤组织中MMP-2及CD147的表达情况进行了检测。结果MMP-2在恶性及交界性上皮性卵巢肿瘤中的强阳性表达率分别为59%,42%,明显高于良性组织阳性表达率30%(P<0.05),在卵巢癌中MMP-2的表达与卵巢癌的临床分期有关,Ⅲ=-Ⅳ期卵巢癌强阳性表达率71%,明显高于Ⅰ-Ⅱ期卵巢癌强阳性表达率375(P<0.05),与分化程度无明显关联,但有淋巴细胞转移的病例强阳性表达率87%,明显高于无淋巴结转移组,CD147在恶性及交界卵巢上皮性肿瘤中的强阳性表达率分别为为64%,57%,而良性组则未见CD147的表达,在卵巢癌中,CD147的强旨性表达率与临床分期有前,Ⅲ-Ⅳ期的癌组织强阳性表达率74%,明显高于Ⅰ-Ⅱ期强阳性表达率45%,在不同分化程度卵巢癌组织中CD147的强阳性率无明显差异,有无淋巴结转移的卵巢癌组织中CD147强阳性表达率差异显著,结论MMP-2及CD147均与卵巢癌的分期及淋巴结转移有关,CD147与MMP-2的产生关系密切。  相似文献   

16.
目的检测精子相关抗原9(SPAG9)在卵巢浆液性上皮肿瘤中的表达,初步探讨其在卵巢浆液性上皮肿瘤术前诊断中的意义。方法应用免疫组织化学SP法,检测良性组24例、交界性组27例、恶性组32例中SPAG9的表达,采用酶标记免疫吸附测定法(ELISA)检测卵巢浆液性上皮肿瘤患者血清中SPAG9的表达水平,与对应的血清CA125表达水平进行相关性分析,并用受试者工作特征(ROC)曲线评价两指标的诊断价值。结果①SPAG9在卵巢上皮性恶性肿瘤组织中的表达高于交界性组及良性组,并与恶性肿瘤的细胞分化程度相关(P<0.05);②卵巢浆液性上皮性肿瘤患者血清中SPAG9有表达,恶性组高于良性组,其血清学水平与CA125呈正相关(P<0.01),ROC曲线分析提示SPAG9对卵巢上皮性恶性肿瘤有较高的诊断意义,但并不优于CA125。结论SPAG9的表达与卵巢上皮性肿瘤的恶性程度相关,在卵巢上皮性恶性肿瘤中表达较高,可作为卵巢上皮性肿瘤术前诊断和术后治疗监测新的生物学指标。  相似文献   

17.
目的:比较卵巢良性上皮肿瘤?早期及晚期恶性上皮肿瘤的血脂水平,探讨血脂变化在卵巢上皮肿瘤发生发展过程中可能的作用?方法:采用病例-对照研究,共纳入200例研究对象,按手术后病理结果分为良性组100例?早期恶性组和晚期恶性组各50例,收集各组血脂,主要观察总胆固醇(total cholesterol,TC)?甘油三酯(triglycerides,TG)?高密度脂蛋白胆固醇(highdensity lipoprotein cholesterol,HDL-c)?低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-c)?脂蛋白a[lipoprotein (a)]等血脂指标与卵巢上皮性肿瘤的相关关系?结果:恶性组TC及HDL-c水平明显低于良性组,差异具有统计学意义(P < 0.05),恶性组LP(a)水平也较良性组有升高的趋势(P=0.061)而LDL-c较良性组有降低趋势(P=0.061)?良性组?早期组及晚期组间TC?HDL-c?LDL-c及LP(a)水平方差分析结果均显示差异具有统计学意义(P值均 < 0.05)?其中良性组较早期组的HDL-c水平明显降低(P < 0.001);晚期组较良性组TC?HDL-c?LDL-c明显下降(P值均<0.05),而晚期组LP(a)水平较良性组明显升高(P=0.013);晚期组与早期组相比,两组之间各项指标均无明显差异,而只有LP(a)呈升高趋势(P=0.052)?将TC?TG?HDL-c,LDL-c及LP(a)作为自变量,卵巢肿瘤的病变程度作为因变量,进行Logistic分析:HDL-c(P < 0.01)及LP(a)(P = 0.02)与卵巢肿瘤的发展程度有关,差异性具有统计学意义;根据指南标准分别对其进行赋值后,再次进行Logistic回归分析:HDL-c(P < 0.01)及LDL-c(P = 0.01)与肿瘤的病变程度有关,差异性具有统计学意义?结论:HDL-c?LDL-c及LP(a)与卵巢肿瘤的发展程度有关,卵巢恶性肿瘤的期别越晚,HDL-c及LDL-c的值越低,而LP(a)值越高?  相似文献   

18.
VEGF和EG-VEGF在卵巢上皮性肿瘤组织中的表达及意义   总被引:1,自引:0,他引:1  
目的探讨血管内皮生长因子(VEGF)和内分泌腺来源的血管内皮生长因子(EG—VEGF)在卵巢上皮性肿瘤组织中的表达情况并分析其意义,为卵巢癌的防治提供理论依据。方法应用免疫组织化学SP法和形态定量学方法检测85例卵巢上皮性肿瘤(良性25例,FIGOⅠ、Ⅱ期卵巢癌27例,FIGOⅢ、Ⅳ期卵巢癌33例)和20例正常卵巢(除外卵巢疾病的绝经前患者)组织中VEGF、EG-VEGF表达的阳性率及积分光密度值(IOD)。结果VEGF在卵巢上皮性肿瘤组织中表达的阳性率及IOD值恶性组明显高于良性组及对照组(P〈0.01),其中晚期(FIGOⅢ、Ⅳ期)卵巢癌明显高于早期(FIGOⅠ、Ⅱ期)(P〈0.05);EG—VEGF在正常卵巢组织表达的阳性率及IOD值明显高于卵巢上皮性肿瘤,其中恶性卵巢上皮性肿瘤组织中EG-VEGF表达阳性率及IOD值高于良性上皮性肿瘤(P〈0.01),但晚期(FIGOⅢ、Ⅳ期)卵巢癌的EG-VEGF阳性表达率及IOD值低于早期(FIGOⅠ、Ⅱ期)卵巢癌(P〈0.05)。结论VEGF可作为衡量卵巢上皮性肿瘤的良恶性,判断其预后的一个指标。在卵巢上皮性肿瘤组织中EG-VEGF在血管生成方面和VEGF互为补充,推测以EG-VEGF为靶位点的卵巢癌的治疗方法只在早期发挥作用。  相似文献   

19.
目的:探讨p53和survivin在交界性上皮性卵巢肿瘤中的表达及其意义以及二者的相互关系。方法:采用免疫组织化学EliVision法检测上皮性卵巢癌30例、卵巢上皮性交界性肿瘤30例和上皮性良性卵巢肿瘤30例组织中p53和survivin。结果:在良性、交界性、恶性上皮性卵巢肿瘤组织中,survivin的阳性率分别为13.33%、43.33%和86.67%,差异均有统计学意义(P〈0.05);p53的阳性率分别为23.33%、36.67%和73.33%,恶性上皮性卵巢肿瘤组织中阳性率与良性和交界性比较差异有统计学意义(P〈0.05~P〈0.01),而良性和交界性卵巢肿瘤组织中阳性率差异无统计学意义(P〉0.05);p53和survivin在交界性卵巢肿瘤组织中表达有相关性。结论:survivin与p53表达水平增高可能与交界性卵巢肿瘤的发生、发展有关,可为卵巢交界性肿瘤的诊断及预后判断提供依据,且二者在上皮性交界性卵巢肿瘤的癌变中可能存在协同作用。  相似文献   

20.
卵巢上皮性肿瘤组织中EphA2和E-钙黏素测定   总被引:1,自引:0,他引:1  
目的:探讨卵巢上皮性肿瘤组织中EphA2和E-钙黏素的表达及其与临床病理特性、预后的关系.方法:采用免疫组织化学SP法检测60例卵巢恶性上皮性肿瘤(浆液性乳头状囊腺癌36例,黏液性乳头状囊腺癌15例,子宫内膜样癌6例,透明细胞癌3例;FIGO分期Ⅰ期4例,Ⅱ期5例,Ⅲ期23例,Ⅳ28例;组织学分级G1 15例,G27例,G3 38例)、14例卵巢交界性上皮性肿瘤、25例卵巢良性上皮性肿瘤及10例正常卵巢组织中EphA2及E-钙黏素蛋白的表达情况.结果:在正常卵巢、卵巢上皮性良性肿瘤、卵巢交界性上皮性肿瘤和卵巢恶性上皮性肿瘤组织中,EphA2蛋白的阳性表达率分别为10.0%(1/10)、20.0%(5/25)、57.1%(8/14)、85.0%(51/60),差异有统计学意义(P<0.01);E-钙黏素蛋白的阳性表达率分别为20.0%(2/10)、88.0%(22/25)、71.4%(10/14)、36.7%(22/60),差异有统计学意义(P<0.001).随着卵巢肿瘤恶性程度的增高,EphA2的阳性表达率呈递增趋势,E-钙黏素的阳性表达率呈递减趋势,2者呈负相关(r=-0.396).EphA2和E-钙黏素的蛋白过表达均与卵巢恶性上皮性肿瘤FIGO分期、组织学分级及有无腹膜转移密切相关.结论:在卵巢恶性肿瘤的发生发展过程中EphA2起一定的作用,其过表达可导致细胞的恶性转化.E-钙黏素与EphA2的联合检测可作为评价卵巢恶性上皮性肿瘤患者生存及预后的指标.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号