乙酰肝素酶基因在子宫内膜异位症患者在位与异位子宫内膜组织中的表达

目的　研究乙酰肝素酶基因在子宫内膜异位症发病中的作用。方法　应用原位杂交技术 ,检测腹腔镜手术中证实为子宫内膜异位症患者 (EM组 ,2 3例 )的在位和异位子宫内膜组织乙酰肝素酶mRNA的表达 ,并与正常妇女 (对照组 ,2 5例 )子宫内膜组织比较。结果　 ( 1)EM组在位与异位子宫内膜乙酰肝素酶mRNA阳性表达率一致 ,但异位子宫内膜组织中 ,阳性细胞着色较深。在位子宫内膜腺上皮细胞较间质细胞胞浆染色深 ,异位子宫内膜腺上皮细胞与间质细胞胞浆着色基本一致 ;EM组增生期与分泌期子宫内膜均有乙酰肝素酶mRNA的表达 ,增生期阳性表达率为 83 3%( 10 / 12 ) ;分泌期为 72 7% ( 8/ 11) ,两者比较 ,差异也无显著性 (P >0 0 5 ) ;( 2 )对照组增生期子宫内膜乙酰肝素酶mRNA的阳性表达率为 4 1 7% ( 5 / 12 ) ,分泌期子宫内膜阳性表达率为 7 7% ( 1/ 13) ,两者比较 ,差异有显著性 (P <0 0 5 )。 ( 3)EM组子宫内膜乙酰肝素酶mRNA阳性表达率为 78 3% ( 18/2 3) ;对照组为 2 4 0 % ( 6 / 2 5 ) ,两者比较 ,差异也有显著性 (P <0 0 5 )。结论　乙酰肝素酶基因的表达与子宫内膜异位症的发病相关 ,其可能成为子宫内膜异位症治疗的一个有价值的靶点。     

紧密连接蛋白claudin-4在子宫内膜异位症患者在位与异位内膜组织中的表达

目的 检测紧密连接蛋白claudin-4在正常子宫内膜、子宫内膜异位症(内异症)患者的在位和异位内膜组织中的表达,评价elaudin-4在内异症发病中的作用.方法 选择35例内异症患者的卵巢异位内膜组织(异位内膜组),其中27例内异症患者的在位子宫内膜(在位内膜组)和35例非内异症良性卵巢、子宫疾病患者(对照组)的子宫内膜组织.透射电镜观察各组内膜组织中紧密连接的形态学变化;免疫组化和免疫印迹法检测elaudin-4蛋白的表达量,RT-PCR技术检测claudin-4 mRNA的表达量.结果 (1)透射电镜下,异位内膜组内膜组织中紧密连接结构消失,胶原组织丰富;在位内膜组内膜组织中紧密连接的结构与对照组内膜组织相似,未见明显变化.(2)免疫组化检测结果显示,clandin-4蛋白的阳性染色主要定位于子宫内膜腺上皮细胞膜,异位内膜组织中claudin-4的阳性染色很弱甚至缺失;在对照组、在位内膜组和异位内膜组内膜组织中,claudin-4蛋白表达量分别为89±24、84±22、27±14;claudin-4 mRNA表达量分别为14.5±6.8、13.8±9.5、2.6±2.5.异位内膜组内膜组织中claudin-4 mRNA和蛋白的表达量均低于在位内膜组和对照组内膜,差异有统计学意义(P<0.05).在位内膜组和对照组内膜组织中claudin-4 mRNA和蛋白的表达量分别比较,差异均无统计学意义(P>0.05).结论 异位子宫内膜组织中clandin-4的低表达可能参与了内异症的发病.     

趋化因子受体6在子宫内膜异位症在位内膜及异位灶中的表达

目的分析趋化因子受体6(chemokine receptor,CCR6)在子宫内膜异位症(内异症)患者的在位内膜及异位内膜中的表达水平,以探讨其在发病中的作用。方法采用免疫组化技术检测内异症患者在位内膜及异位灶CCR6的表达。结果对照组子宫内膜中CCR6的表达分泌期明显强于增殖期(P0.05);内异症患者在位子宫内膜间质和腺体CCR6的表达比较,差异无统计学意义(P0.05),但其表达强度高于对照组(P0.05),异位灶CCR6的表达明显高于对照组(P0.05),略高于在位子宫内膜,但无统计学意义(P0.05)。结论CCR6的表达具有周期特异性,可能受雌/孕激素调节,参与子宫内膜异位症的发生和进展。     

Altered expression of interleukin-18 in the peritoneal fluid of women with endometriosis

OBJECTIVE: Peritoneal fluid (PF) inflammatory factors may participate in the pathogenesis of endometriosis. The aim of this study was to investigate PF interleukin (IL)-18 levels in women with and without endometriosis. DESIGN: Controlled clinical study. SETTING: Women undergoing laparoscopy at a university hospital. PATIENT(S): Fifty women with previously untreated endometriosis, 8 women on GnRH agonists for endometriosis, and 18 control women with normal pelvic anatomy who were undergoing tubal ligation. INTERVENTION(S): Peritoneal fluid IL-18 levels as measured by ELISA. MAIN OUTCOME MEASURE(S): Peritoneal fluid IL-18 levels. RESULT(S): Peritoneal fluid IL-18 levels were significantly higher in women with previously untreated endometriosis (mean +/- SEM, 91.1 +/- 6.5 pg/mL) than in control women (59.4 +/- 2.0 pg/mL). Interestingly, women with superficial (100.0 +/- 10.2 pg/mL) and deep peritoneal implants (94.0 +/- 10.8 pg/mL) had significantly higher PF IL-18 levels than did women with endometriomas (57.8 +/- 1.8 pg/mL). Similarly, women with stage I-II endometriosis (97.3 +/- 8.0 pg/mL), but not women with stage III-IV endometriosis (74.9 +/- 9.9 pg/mL), had significantly higher PF IL-18 levels than did control women. Peritoneal fluid IL-18 levels were significantly higher in the luteal phase than in the follicular phase but did not discriminate between women with pelvic pain or infertility. CONCLUSION(S): Peritoneal fluid IL-18 is elevated in women with peritoneal, minimal- to mild-stage endometriosis.     

Increased expression of endoglin in the eutopic endometrium of women with endometriosis.

OBJECTIVE: To compare the angiogenic activities of endothelial cells in the eutopic endometrium of women with and without endometriosis. DESIGN: Vessels with active angiogenesis were identified using the monoclonal antibody to endoglin. SETTING: University department of obstetrics and gynecology. PATIENT(S): Twenty women with histologically confirmed endometriosis after laparotomy or laparoscopy. Women with carcinoma in situ of uterine cervix, but no evidence of endometriosis (n = 20), served as control subjects. INTERVENTION(S): Formalin-fixed, paraffin-embedded archival tissues were sectioned and stained. MAIN OUTCOME MEASURE(S): Number of vessels stained with monoclonal antibody to endoglin. RESULT(S): For all menstrual phases, the mean number of vessels with endoglin expression was significantly greater in patients with endometriosis compared with control subjects. In each menstrual phase, a significant difference was observed only during the late secretory phase. Within the group with endometriosis, the mean numbers of vessels with endoglin expression in stages I and II were not different from the numbers in stages III and IV. CONCLUSION(S): This study shows the expression of endoglin in the eutopic endometrium of women with endometriosis is significantly increased and the increase is observed only in the late secretory phase. It is suggested from these findings that activation of angiogenesis in the eutopic endometrium might be a key factor in the pathogenesis of endometriosis.     

子宫内膜异位症在位、异位内膜淋巴细胞亚群分布的研究

目的探讨子宫内膜异位症（内异症）在位和异位内膜淋巴细胞的分布及意义。方法采用免疫组织化学碱性磷酸酶抗碱性磷酸酶法,对43例内异症患者和19例子宫肌瘤等非内异症患者(对照组)的在位内膜和异位内膜中淋巴细胞及巨噬细胞亚群的数量、比例进行测定。结果内异症患者的增殖期异位内膜局部CD+3、CD+8、CD+68T淋巴细胞含量分别为（67.2±13.5）个/5HP（±s,下同）、（45.0±14.6）个/5HP、（37.2±10.6）个/5HP,明显多于在位内膜的（52.4±11.3）个/5HP（P<0.01）、（32.5±10.0）个/5HP（P<0.05）、（30.7±10.3）个/5HP,以及对照组内膜的（52.1±14.9）个/5HP（P<0.05）、（28.9±12.7）个/5HP（P<0.01）、（26.3±9.3）个/5HP（P<0.05）;分泌期CD+8T淋巴细胞/CD+4T淋巴细胞比值、CD+68T淋巴细胞含量分别为3.5±1.2、（40.3±12.2）个/5HP,高于对照组内膜的3.2±0.8（P<0.05）、（28.6±10.6）个/5HP（P<0.01）;巨噬细胞含量也明显增高。异位内膜中淋巴细胞无明显周期性改变。结论内异症病变局部淋巴细胞和巨噬细胞的大量侵润,与内异症的病理形成有关。在较晚期的内异症,淋巴细胞和巨噬细胞不能清除异位内膜,反之,可刺激其生长。     

Integrin expression in eutopic and ectopic endometrium

The significance of retrograde menstruation as a risk factor for endometriosis has been confirmed by numerous clinical observations. Integrins mediate both cell-cell and cell-matrix adhesion, and it is therefore suspected that integrins are involved in the development of endometriosis. Using immunohistochemistry, integrin expression in eutopic and ectopic endometrium is examined in endometriosis patients and control individuals. In nearly all cases, the glandular epithelial cells in the endometrium showed expression of alpha (2-), alpha (3)-, alpha (6)- and alpha (v)- integrin and a low percentage of expression of alpha (1)-, alpha (4)-, and alpha (5)-integrin. In comparison with eutopic endometrium, ectopic endometrium shows reduced expression of alpha (2)- and alpha (v)-integrin. Since no differences in alpha (2)- and alpha (v)-integrin expression were observed in eutopic endometrium between endometriosis patients and control individuals, it may be suspected that the reduced expression of these in ectopic endometrium is explained by influences in the altered environment -- e. g., in the peritoneal fluid -- on the ectopic endometrium.     

Aberrant expression of glutathione peroxidase in eutopic and ectopic endometrium in endometriosis and adenomyosis

OBJECTIVE:To determine the expression of glutathione peroxidase (GPx) in the eutopic and ectopic endometria during the menstrual cycle in endometriosis and adenomyosis. DESIGN:Immunohistochemical identification of GPx in endometrial tissues identified using the polyclonal antibody. SETTING:Department of obstetrics and gynecology in a university hospital. PATIENT(S):One hundred fourteen women divided into three groups: 33 patients with endometriosis, 34 patients with adenomyosis, and 47 fertile control subjects. INTERVENTION(S):Endometrium biopsied throughout the menstrual cycle. MAIN OUTCOME MEASURE(S):Endometrial cells: semiquantitative immunostaining (evaluation nomogram) score. RESULT(S):The analyses revealed phase-dependent changes of GPx expression in the surface and glandular epithelia in the eutopic endometrium during the menstrual cycle in the fertile controls, i.e., the expression was weak in the early proliferative phase, gradually increased, was most marked in the early secretory phase, and decreased thereafter. The expression of GPx in the eutopic endometrium in endometriosis lost the variation during the menstrual cycle. The expression of GPx in adenomyosis was persistently marked over the control levels throughout the menstrual cycle. CONCLUSION(S):The aberrant expression of GPx in the eutopic endometrium throughout the cycle suggests a pathological role in endometriosis and adenomyosis.     

Xanthine oxidase in eutopic and ectopic endometrium in endometriosis and adenomyosis

OBJECTIVE: To investigate the expression of xanthine oxidase in eutopic and ectopic endometrium in endometriosis and adenomyosis. DESIGN: Immunohistochemical identification of xanthine oxidase in endometrial tissues by using polyclonal antibody. SETTING: University hospital. PATIENT(S): Thirty-four women with endometriosis, 34 women with adenomyosis, and 44 fertile control women. INTERVENTION(S): Biopsy samples were obtained from the endometrium throughout the menstrual cycle. MAIN OUTCOME MEASURE(S): Semiquantitative immunostaining (evaluation nomogram) score of endometrial cells. RESULT(S): The level of xanthine oxidase expression in the glandular epithelium of control varied according to menstrual phase, but no such variation in expression was seen in endometriosis. Variation in xanthine oxidase expression was observed during the menstrual cycle in patients with adenomyosis; this variation differed completely from that in controls. Xanthine oxidase expression was found in ectopic endometrial tissue in all cases. The mean evaluation nomogram levels in the glandular epithelium in adenomyosis tissue were as high as those in the early secretory phase in the eutopic endometrium. CONCLUSION(S): Aberrant expression of xanthine oxidase in eutopic and ectopic endometrium appears to play a pathologic role in endometriosis and adenomyosis.     

plastin在子宫内膜异位症在位内膜及异位内膜中的表达及意义

目的探讨子宫内膜异位症(内异症)患者在位内膜及异位内膜中plastin(T亚型及L亚型)的表达在内异症发生和发展中的作用。方法采用原位杂交方法检测2007年5月至12月中国医科大学附属盛京医院妇产科收治的内异症患者(36例,研究组)在位内膜及异位内膜和非内异症、证实盆腔结构正常的妇女(22例,对照组)在位内膜中T-plastin及L-plastin的mRNA表达,并对其表达水平与月经周期进行相关性分析。结果(1)在内异症患者在位内膜中T-plastin的表达水平(0.1519±0.0267)与正常在位内膜(0.1535±0.0299)比较差异无统计学意义(P>0.05),但其两者中T-plastin的表达水平均显著高于在内异症患者异位内膜中(0.1153±0.0151)的表达(P<0.01);研究组在位内膜及异位内膜中L-plastin的表达水平(分别为0.1610±0.0126和0.1869±0.0268)显著高于对照组(0.1396±0.0088)(P<0.01),且异位内膜中显著高于在位内膜中(P<0.01)。(2)在研究组及对照组中,增殖期与分泌期T-plastin的表达水平差异均无统计学意义(P>0...     

子宫内膜异位症淋巴细胞亚群分布研究

目的:本研究检测子宫内膜异位症(EMs)患者在位和异位内膜组织中CD45RO,CD4和CD8阳性的T淋巴细胞数量表达,探讨免疫细胞在EMs中的作用,为免疫治疗提供依据.方法:采用CD45RO,CD4和CD8单克隆抗体,应用免疫组织化学法标记EMs患者的在位和异位子宫内膜组织中CD45RO,CD4和CD8阳性细胞,观察其分布特点并计数其密度,并与正常妇女子宫内膜对照.结果:EMs组和正常对照组的增殖期与分泌期子宫内膜组织中均存在CD45RO,CD4和CD8阳性的淋巴细胞,EMs组在位和异位内膜中CD45RO,CD8阳性细胞数量均高于对照组,差异有统计学意义(P＜0.05),且在异位内膜中的表达较在位内膜升高,差异具有统计学意义(P＜0.05);在位和异位内膜中CD4阳性细胞较对照组略有升高,差异无统计学意义(P＞0.05);在位和异位内膜中CD4/CD8的比值均较对照组降低,差异有统计学意义(P＜0.05);在位和异位内膜之间比较CD4阳性细胞、CD4/CD8的比值无明显变化,差异无统计学意义(P＞0.05).在位内膜的CD45RO,CD4和CD8阳性细胞表现为由增殖期到分泌期增加的趋势,但差异无统计学意义(P＞0.05);异位内膜中CD45RO,CD4及CD8阳性细胞无明显增殖期与分泌期的改变(P＞0.05);对照组中CD45RO及CD4阳性细胞从增殖期到分泌期有增多的趋势,但差异无统计学意义(P＞0.05).EMs组异位和在位内膜Ⅰ～Ⅱ期病例和Ⅲ～Ⅳ期病例之间CD45RO,CD4和CD8阳性细胞未发现明显变化,差异无统计学意义(P＞0.05).结论:EMs患者在位和异位内膜中T淋巴细胞亚群分布的改变为EMs的发生提供条件,并对EMs的发生、发展和维持起重要作用.     

乙酰肝素酶mRNA在子宫内膜异位症和子宫腺肌病中表达的研究

目的:检测子宫内膜异位症和子宫腺肌病在位及异位子宫内膜组织中乙酰肝素酶(heparanase,Hpa)mRNA的表达,探讨Hpa在子宫内膜异位症和子宫腺肌病发生发展中的作用及意义。方法:采用逆转录-聚合酶链反应(RT-PCR)技术检测50例子宫内膜异位症患者和42例子宫腺肌病患者的异位及在位内膜中Hpa mRNA的表达,并与30例妇女的正常子宫内膜进行比较。结果:(1)子宫内膜异位症组和子宫腺肌病组患者的异位及在位内膜中Hpa mRNA表达差异无显著性(P>0.05)。对照组正常子宫内膜中Hpa mRNA表达明显低于两组患者异位及在位内膜的阳性表达率(P<0.05);(2)Ⅰ~Ⅱ期子宫内膜异位症的异位及在位内膜中Hpa mRNA表达明显低于Ⅲ~Ⅳ期的异位与在位内膜表达(P<0.05)。结论:(1)Hpa与子宫内膜异位症和子宫腺肌病发病有关;(2)Hpa与子宫内膜异位症病情进展有关,是促进子宫内膜异位症病情进展的一个因素。     

子宫内膜异位症淋巴细胞亚群分布研究

目的:本研究检测子宫内膜异位症(EMs)患者在位和异位内膜组织中CD45RO,CD4和CD8阳性的T淋巴细胞数量表达,探讨免疫细胞在EMs中的作用,为免疫治疗提供依据。方法:采用CD45RO,CD4和CD8单克隆抗体,应用免疫组织化学法标记EMs患者的在位和异位子宫内膜组织中CD45RO,CD4和CD8阳性细胞,观察其分布特点并计数其密度,并与正常妇女子宫内膜对照。结果:EMs组和正常对照组的增殖期与分泌期子宫内膜组织中均存在CD45RO,CD4和CD8阳性的淋巴细胞,EMs组在位和异位内膜中CD45RO,CD8阳性细胞数量均高于对照组,差异有统计学意义(P<0.05),且在异位内膜中的表达较在位内膜升高,差异具有统计学意义(P<0.05);在位和异位内膜中CD4阳性细胞较对照组略有升高,差异无统计学意义(P>0.05);在位和异位内膜中CD4/CD8的比值均较对照组降低,差异有统计学意义(P<0.05);在位和异位内膜之间比较CD4阳性细胞、CD4/CD8的比值无明显变化,差异无统计学意义(P>0.05)。在位内膜的CD45RO,CD4和CD8阳性细胞表现为由增殖期到分泌期增加的趋势,但差异无统计学意义(P>0.05);异位内膜中CD45RO,CD4及CD8阳性细胞无明显增殖期与分泌期的改变(P>0.05);对照组中CD45RO及CD4阳性细胞从增殖期到分泌期有增多的趋势,但差异无统计学意义(P>0.05)。EMs组异位和在位内膜Ⅰ～Ⅱ期病例和Ⅲ～Ⅳ期病例之间CD45RO,CD4和CD8阳性细胞未发现明显变化,差异无统计学意义(P>0.05)。结论:EMs患者在位和异位内膜中T淋巴细胞亚群分布的改变为EMs的发生提供条件,并对EMs的发生、发展和维持起重要作用。