Immunohistochemical Localization of Estrogen and Progesterone Receptorin Decidua and Villi of Human Early Pregnancy

Imtnunohistochemical assessment of estrogen recceptor(ER) and progesterone receptors(PR) were performed using monoetonat antibodies to the receptors. A totalof 81 samples. from pregnant women at 5-13 weeks of gestation were immunostained by peroxidase anti-peroxidase method (PAP). hnmunostaining pattern of PR in early pregnant decidua was similar to that of the late luteal phase of normal endometrium characterized by little reaction in supecfieiat glandular epithelia and retatively intense in stroma. Positive stainig was atsa revealed in structure of blood vessels including pericyte and smooth muscle cells. An interesting finding is that endothelial cells Of the vessels expressed PR which has not been reported in normal cyclic endometrium. The endothelial nature of their PR partitive cell was further confirmed by immunostaining of specific endothelial marker, Factor VⅢ. The trophoblast population in villi anddecidua also showed positive reaction inctnding villous trophoblast, column andinterstitial trophobtast. In eontrast to PR, little ER were revealed in deteected tissue.     

Similarity between Spatial-temporal Expression Patterning of HOXA11 and Progesterone Receptor in Human Endometrium

Objective To study HOXA 11 expression and its correlation with that of the progesterone receptor (PR) gene in human endometrium Methods In situ hybridization and semi-quantitative RT-PCR were used. Results HOXA 11 mRNA was detected in both stromal and glandular cells of normal endometrium by in situ hybridization. But the expression levels in the glandular cells had a dramatic decline or even disappearance at mid-secretory stage. Semi-quantitative RT-PCR analysis, however, demonstrated that the total expression levels of HOXA 11 mRNA were markedly increased in the mid-secretory endometrium, which suggested that there was an increased expression in stromal cells. Similar results were obtained for PR gene expression in human endometrium by in situ hybridization and semi-quantitative RT-PCR analysis, Conclusion HOXA 11 gene spatial and temporal e.vpression patterns were similar to that of PR gene in endometrium across menstrual cycle, and HOXA 11 was closely related to the endometrial proliferation and differentiation during menstrual cycle, especially the establishment of receptive status in implantation.     

Impact of luteinized unruptured follicles on endometrial receptivity

This study examined the impact of luteinized unruptured follicle (LUF) on endometrial receptivity. The menstrual cycle of 17 LUF patients (LUF group) and 13 ovulatory women (control group) was monitored by measuring LH level in urine and by ultrasonic examination. An endometrial biopsy at the sixth to tenth day after LH surge was taken in all the patients. The expressions of endometrial ER, PR and integrin ανβ3 were immunohistochemically determined. At the same time, the serum levels of E2 and P were detected by chemiluminescence. The results exhibited that (1) The mean serum P level in LUF group (7.32±2.56 ng/mL) was significantly lower than that in control group (11.17±3.17 ng/mL) (P<0.01). But there was no significant difference in the mean serum E2 levels between LUF group (179.35±81.60 pg/mL) and the control group (198.58±75.23 pg/mL) (P>0.05); (2) The mean expression intensities of ER, PR in endometrium of LUF group (183.86±2.43, 167.94±3.04) were significantly higher than those in control group (109.35±6.31, 105.98±4.07) (P<0.01); (3) The mean expression intensities of integrin ανβ3 in endomtrium of LUF patients (114.90±11.38) were significantly lower than those in control group (191.34±1.82) (P<0.01); (4) The change profile of integrin ανβ3 expression in the endometrium of LUF patients was in positive relation with serum P level (r=0.77, P<0.01), but bore no significant relationship with serum E2 level (r=0.01, P>0.05). It was concluded that the depression of serum P levels in LUF patients was closely related to the failure of the down-regulation of ER and PR, and the low expressions of integrin ανβ3 also suggested that the delayed implantation and the impaired endometrial receptivity had impact on embryonic implantation.     

Expression of Nuclear Factor-κB in Mouse Uterus during Peri-implantation

To investigate the expression of the subunit p65 of NF-κB and inhibitor kappa B alpha (IκBα) in mouse uterus during peri-implantation, thereby investigating whether transient activation of nuclear factor-κB (NF-κB) takes place during embryo implantation in mice. Immunohistochemical technique was used to examine the expression and localization of p65 in endometrium or deciduas, and Western blot analysis was employed to detect the levels of IκBα protein in mouse endometrium or deciduas. P65 protein was detected in stromal cells, epithelial cells of endometrium as well as in myometrium. Staining was predominately seen in the cytoplasm of the cells. Staining intensity for p65 was stronger in the epithelial compartment than the stromal compartment and myometrium. Staining intensity increased slightly during pregnancy, and it reached a high level on pregnancy day 5 and day 8. In contrast to p65, the level of IκBα protein was lowest on pregnancy day 5 in all groups. Our results suggested that NF-κB may regulate embryo implantation by its transient activation in mice.     

Increased expression of stathmin in eutopic endometrium of patients with endometriosis

Background Stathmin was identified as an endometriosis-related protein by comparative proteomics in our previous study.As a microtubule-destablizing factor, stathmin was shown to participate in the relay and integration of diverse intracellular signaling pathways involved in cell proliferation, differentiation, and many other cellular activities.To investigate whether stathmin is involved in the pathogenesis of endometriosis, we examined the expression of stathmin in eutopic endometrium of women with or without endometriosis.Methods Eutopic endometrium samples were collected from thirty-six patients who were diagnosed as endometriosis and the nineteen age-matched patients who were confirmed to be free of endometriosis surgically and histologically.The expression of stathmin mRNA was detected by real-time PCR, and its protein was detected by Western blotting and immunohistochemistry.Results Stathmin was overexpressed in eutopic endometrium of women with endometriosis detected by real-time PCR in mRNA levels and by Western blotting in protein levels, without significant difference between proliferative and 0secretory phase.Immunohistochemistry showed that stathmin protein was localized in both endometrial glandular and stromal cells throughout the menstrual cycle.Conclusions Stathmin is overexpressed in endometrium of patients with endometriosis and may play a role in the pathogenesis of endometriosis.     

Effects of ＂Caulis Sargentodoxae Formula＂ on Experimental Endometriosis in Rat

Objective To study the drug effects of ＂Caulis Sargentodoxae Formula＂ which dears away heat and blood clot on experimental endometriosis in rat, and to compare this effect with Danazol＇s effects. Method The model of endometriosis rat was induced by transplanting with endometrium surgically The rats were divided into 6 groups randomly： the non-treatment group, the castrate group, Danazol group（80 mg/kg）, ＂Caulis Sargentodoxae Formula＂ group （110 g/kg）, the medium dose group（77.5 g/kg） and the low dose group（55 g/kg）. After 3 weeks＇ treatment, the volume ofendometrium was detected by cutting the rats＇ belly open, drawing the materials from endometrium for tissue section, and doing the quantity analysis of endometrium by semiautomatic image analysis machine. Results There was no significant difference of the endometrium volumes between the low dose group and the non-treatment group（P〉O.05）, other groups＇ endometrium volumes were significantly lower than those of the non-treatment group（P〈0. 05）. And apart from the low dose group, all other groups＇ heights of the endometrium epithelia were significantly lower than that of the non-treatment group（p〈0.01）. Conclusion ＂Caulis Sargentodoxae Formula＂ can refrain the growth of the endometrium, and the effects are better than that of Danazol＇s.     

Expression of TWEAK on the Ectopic and Eutopic Endometrium from Women with Endometriosis

Objective To investigate the relationship between Tumor necrosis factor （TNF）-like weak inducer of apoptosis（TWEAK） and endometriosis.
Methods TWEAK mRNA and protein concentrations in paired samples of eutopic endometrial tissue from women with and without endometriosis, and also of ectopic endometrial tissue from women with endometriosis were measured by Real-time PCR, immunohistochemistry and Western blotting, respectively.
Results Compared with control endometrium from women without endometriosis and eutopic endometrium from women with endometriosis, TWEAK expressions were reduced on the ectopic endometrium （P〈O.05）. Moreover, the expressions of TWEAK mRNA on eutopic endometrium and control endometrium in proliferative phase were much lower than those in secretory phase. TWEAK protein was expressed in the cytoplasm of glandular cells and stromal cells of endometrium.
Conclusion TWEAK is expressed on the endometrium of reproductive women, and its concentration rises in secretory phase, compared with that in proliferative phase. Patients with endometriosis had a lower expression of TWEAK on ectopic endometrium, which may lead to a decreased level of apoptosis on endometrial cells. Consequently, endometrial cells were able to survive outside uterus helping the development of endometriosis.     

Value of T cell receptor gamma alternate reading frame protein and keratin 5 in endometrial carcinoma

Background Tumors with different gene expression develop and progress in different ways. To deepen our understanding of the progression in endometrial cancer, and provide a useful tool for accurate diagnosis and prognosis assessment, we identified the new molecular prognostic markers in endometrial carcinoma and analyzed the relationship of them with clinical and pathological features of endometrial carcinoma. Methods Ninety-four cases of endometrial endometrioid adenocarcinoma with complete data from the Peking University People＇s Hospital from 2000 to 2008 and 40 cases of normal endometrium were enrolled. Among these, 30 endometrial endometrioid adenocarcinoma samples of different International Federation of Gynecology and Obstetrics （FIGO） stage were selected for further Agilent genome-wide microarray analysis. Significance analysis of microarrays （SAM） was used to identify genes that are significantly associated with tumor progress. Immunohistochemistry was utilized to identify the genes of interest in endometrial carcinoma and normal endometrium. The relationship between the genes and the age, clinical stage, histological grade, myometrium invaded depth, lymph node metastasis status, and the expression of ER, PR, P53, and PTEN were analyzed by X2 test. Results Analysis between FIGO 1988 stage I and stage III identified a 362-gene ＂progress signature＂; 171 downregulated and 191 up-regulated genes. Among the alterative genes, TARP （T cell receptor gamma alternate reading frame protein） and KRT5 （keratin 5） decreased 3.57 fold and 5.8 fold in FIGO stage III patients. The expression of TARP in endometrial carcinoma increased compared to normal endometrium, while that of KRT5 decreased （P〈0.05）. The expression of TARP and KRT5 decreased when stage, histological grading, myometrium invaded depth increased （P〈0.05）. In the cases with lymph node metastasis, the expression of TARP decreased, while the expression of KRT5 did not differ （both P〈0.05） both. The expression of P53 had a negative relationship with the expression of KRT5 （P〈0.05）, but not with the expression of TARP （P〉0.05）. There was no correlation between the expression of TARP and KRT5 and the expression of ER, PR, PTEN （all P〉0.05）. There was no significant difference in TARP and KRT5 expression in patients aged 50 or younger and patients older than 50 （P〉0.05）. Conclusion The expression of TARP and KRT5 was correlated with the progress of endometrial cancer and their role needs further study.     

Clinical significance of survivin in the diagnosis and prognosis of endometrial carcinoma

Objective： To investigate the clinical significance of survivin in endometrial carcinoma and to investigate the relationship between the expression of survivin and Ki-67. Methods： Immunohistochemical S-P （streptavidin-biotin-peroxidase complex）method was performed to detect the expression of survivin and Ki-67 antigen in 15 cases of normal endometrium, 21 cases of endometrial simple and complex hyperplasia, 22 cases of endometrial atypical hyperplasia, and 61 cases of endometrial carcinoma. Results： Survivin was hardly detected in some normal endometrium in the proliferative phase and in the secretory phase. However, the level of survivin expression in atypical hyperplasia endometrium（72.73%）was higher than that in normal en- dometrium （7.14%）（P 〈 0.05）, including simple and complex hyperplasia （42.38%）（P 〈 0.01 ）, and was lower than that in endometrial carcinoma（90.17%）（P 〈 0.05）. Moreover, significant correlation was present between the expression of survivin and the characteristics of endometrial carcinoma, including clinical stage, histological grade and the presence of invasion to myometrium （P 〈 0.05）. In addition, Ki-67 antigen expression was positively correlated with survivin expression in all specimen. Ki-67 labeled indexes （LIs）in hyperplasia endometrium were significantly lower than those in atypical hyperplasia endometrium and endometrial carcinoma （P 〈 0.01 ）, while there was no significant difference in Ki-67 LIs between atypical hyperplasia endometrium and endometrial carcinoma（P 〉 0.05）. There was no significant relationship between Ki-67 LIs and the characteristics of endometrial carcinoma, including histological grade, clinical stage or the invasion to myometrium（P 〉 0.05）. Conclusion： Survivin may participate in the onset and progression of endometrial carcinoma through inhibiting apoptosis and promoting proliferation. Survivin expression is correlated with the malignant degree and prognosis of tumor. Ki-67 is also associated with carcinogenesis and progression of endometrial carcinoma. The results suggest that survivin could be a diagnostic and prognostic marker for endometrial carcinoma and might provide pathways to treat the patients with recurrent or refractory or rudimental endometrial carcinoma.     

Norplant使用者子宫内膜形态与性激素受体变化的研究

为探讨Ｎｏｒｐｌａｎｔ埋植后不规则出血的内膜与性激素受体的相关性，对正常月经周期和Ｎｏｒｐｌａｎｔ埋植６个月、１年有不规则出血的人子宫内膜进行形态学与免疫组织化学ＥＲ和ＰＲ的观察。结果证明不规则子宫出血的内膜无典型周期性变化；部分内膜血管断裂，雌激素受体（ＥＲ）和孕激素受体（ＰＲ）有不同程度的减少。提示Ｎｏｒｐｌａｎｔ可抑制子宫内膜ＥＲ和ＰＲ的生成，从而抑制了雌激素（Ｅ）和孕激素（Ｐ）的生物活性，其中血管壁生长不良是不规则子宫出血的主要原因之一     

绝经前、后EP中ER、PR、Bcl-2、Ki-67蛋白表达特点

目的:探讨绝经前、绝经后子宫内膜息肉(EP)中雌激素受体(ER)、孕激素受体(PR)、B-细胞淋巴瘤基因蛋白(Bcl-2)、细胞核相关抗原(Ki-67)的表达,为研究EP形成机制提供思路。方法:随机选取绝经前、绝经后EP标本各15例,及绝经前正常增生期子宫内膜和绝经后正常萎缩型子宫内膜各10例,共50例标本。用生物素蛋白免疫组化法(SP法)检测各组织上EP、PR、Bcl-2、Ki-67的表达情况,并进行统计分析。结果:①绝经前组:PR在EP腺体和间质的表达均低于其在正常增生期子宫内膜中的表达(P<0.05),Bcl-2在EP腺体和间质的表达均高于其在正常增生期子宫内膜中的表达(P<0.05),ER、Ki-67在EP和正常增殖期子宫内膜中的表达无差异(P>0.05);②绝经后组:ER、PR、Bcl-2在EP间质和腺体中的表达均高于三者在绝经后正常萎缩型子宫内膜中的表达(P<0.05),Ki-67在EP和绝经后正常萎缩型内膜中的表达没有差异;③PR在绝经后EP腺体及间质的表达显著高于其在绝经前EP中的表达(P<0.05),ER、Bcl-2、Ki-67在绝经前、后EP中的表达没有显著性差异(P>0.05)。结论:子宫内膜局部ER、PR的分布不均和功能改变在EP的形成中可能起到一定作用;局部细胞凋亡的异常在EP的形成中可能起到一定作用。     

雌、孕激素受体及表皮生长因子受体在EP中的表达和宫腔镜对EP的诊治价值

目的： 探讨雌激素受体（ER）、孕激素受体（PR）、表皮生长因子受体（EGFR）在子宫内膜息肉（EP）中的表达及宫腔镜对EP的诊断和治疗价值.方法： 360例EP患者中56例行经宫颈EP电切术（TCRP）,对30例EP患者息肉组织、息肉旁内膜组织和10例正常子宫内膜中EGFR、ER、PR的表达进行检测,并对各组织间质、腺体中EGFR、ER、PR的表达进行比较. 结果：56例行TCRP的EP患者中,2例病理诊断为高分化子宫内膜腺癌,行全子宫切除术,随访6个月～1年,患者预后良好.宫腔镜手术后3个月随访,除4例患者宫腔底部有轻度粘连外,余患者宫腔形态正常,症状明显改善.（3）子宫息肉组织间质和腺体中ER、PR、EGFR的表达均明显高于息肉旁组织及正常内膜的表达（P〈0.05）;息肉旁内膜组织腺体和间质中ER、PR及间质中EGFR的表达与正常子宫内膜组织差异无统计学意义（P〉0.05）;息肉旁内膜组织腺体EGFR的表达明显高于正常内膜的表达（P〈0.05）;息肉组织腺体ER的表达明显高于间质的表达（P〈0.05）,息肉组织腺体EGFR的表达明显高于间质的表达（P〈0.01）.结论：（1）EP的临床特征以不规则阴道出血为主,绝经期则以绝经后出血为主;（2）EP的发生与EGFR、ER、PR协同作用有关;（3）绝经后妇女体内仍有雌激素持续作用;（4）宫腔镜是EP诊断和治疗的首选方法,切除息肉同时息肉旁内膜也应酌情切除.     

左炔诺孕酮对无排卵型功能失调性子宫出血患者子宫内膜血管内皮细胞生长因子、雌激素受体、孕激素受体及血清激素的影响

目的探讨左炔诺孕酮对无排卵型功能失调性子宫出血（功血）患者子宫内膜血管内皮细胞生长因子（VEGF）、雌激素受体（ER）、孕激素受体（PR）及血清激素的影响。方法选取2011年3月～2012年7月采用妈富隆进行治疗的28例无排卵型功血患者为对照组,同期采用左炔诺孕酮进行治疗的28例患者为观察组。将两组患者治疗前与治疗后1、3、6个月的子宫内膜腺体及间质中的VEGF、ER、PR、血清激素水平及相关检测指标进行比较。结果观察组治疗后1、3、6个月的子宫内膜腺体及间质中的VEGF分别为64.29%、71.43%、78.57%和57.14%、64.29%、75.00%,血清孕酮（P）为（3.49±0.26）、（3.80±0.29）ng/mL和（3.93±0.32）ng/mL,均高于对照组;ER、PR及血清雌二醇（E2）均低于对照组,差异均有统计学意义（均P〈0.05）。而垂体分泌卵泡刺激素（FSH）及促黄体生成激素（LH）则无明显差异（均P〉0.05）,且患者的子宫内膜厚度小于对照组,血红蛋白水平高于对照组,PBAC评分低于对照组,不良反应发生率也低于对照组,差异均有统计学意义（均P〈0.05）。结论左炔诺孕酮对无排卵型功血子宫内膜VEGF、ER、PR及血清E2、P的影响较大,并有效改善了疾病的其他相关评估指标。     

米非司酮药物流产后子宫内膜雌激素和孕激素受体亚型观察

目的 研究药物流产(简称药流)、手术人工流产(简称人流)后妇女子宫内膜雌激素受体(ER)、孕激素受体(PR)各亚型表达,探讨各亚型的表达与出血的关系,为防治出血副反应提供理论依据。方法 取药物流产和手术人工流产后子宫出血时间≥16d妇女各15例及手术人工流产后子宫出血时间≤10d 15例妇女的子宫内膜,应用免疫组化链霉素标记生物素过氧化物酶法(SP法)测定子宫内膜ER、PR各亚型的表达及定位情况,对药流组、人流出血组、对照组等3组ER、PR各亚型表达进行组织学积分测定。结果 3组子宫内膜：ERα、ERβ、PR—A、PR—B组织学积分分别如下：药流组为166．7(88．5)、161．5(84)、180．0(109)、136．5(119．0),对照组为306．7(45．9)、230．0(75．0)、224．．2(57)、389．6(106．6)。人流出血组为109．4(114．6)、225．0(120．0)、175．5(225)、50．0(89．0)。药流组ERα、ERβ、PR—B比对照组低,人流出血组ERα、PR—B比对照组低,但ERβ的组织学积分人流出血组与对照组相比差异无显著性意义。3组子宫内膜ERα、ERβ、PR—A和PR—B腺体／间质组织学积分比值差异无显著性意义。结论 子宫内膜ERα、PR—B、ERβ表达降低可能与米非司酮药物流产后子宫出血时间长有关。负压吸引人流后妇女子宫内膜ERα、PR-B表达降低,可能与子宫出血时间过长有关。人流后子宫内膜腺体和间质亚型的表达变化是同步发生的。     

雌孕激素受体在子宫内膜癌、子宫内膜不典型增生及正常子宫内膜中不同表达的临床意义

为探讨子宫内膜雌激素受体（ER）、孕激素受体（PR）检测的方法及意义,用抗ER、PR单克隆抗体免疫组化SP法检测了26例子宫内膜癌、23例子宫内膜不典型增生、22例正常子宫内膜石蜡切片ER、PR的表达,结果显示,免疫组化SP法检测ER,PR阳性率在正常子宫内膜、不典型增生子宫内膜、子宫内膜癌组织中的分布不同。内膜癌ER、PR含量明显低于正常子宫内膜及不典型增生子宫内膜,正常内膜与不典型增生内膜ER、PR的表达无统计学差异,正常内膜与内膜癌、不典型增生与内膜癌ER、PR表达有统计学差异,反映了肿瘤的生物学行为。免疫组化ER、PR含量SP法测定对临床预后判断,指导治疗有一定的意义。     

子宫内膜异位症患者异位和在位子宫内膜ER和PR的表达

目的　研究雌激素受体 (ER)和孕激素受体 (PR)在子宫内膜异位症 (EM)患者的异位和在位内膜中的表达。　方法　采用免疫组织化学 SP法分别检测 4 5例 EM(研究组 )的异位和在位内膜及 32例子宫肌瘤 (对照组 )的在位内膜中 ER、PR的表达。利用图像分析仪测定相应密度代表其表达强度。　结果　研究组异位内膜中ER、PR、ER/PR和在位内膜中 ER/PR的表达显著低于对照组 (P<0 .0 5 ) ,且均发生于增殖期。异位内膜中 ER、PR及在位内膜中 ER丧失周期性变化规律。　结论　异位内膜 ER、PR、ER/PR和在位内膜 ER/PR的低表达及异位内膜 ER、PR和在位内膜 ER丧失周期性变化规律特点可能与 EM的发生发展有关     

多囊卵巢综合征患者子宫内膜性激素受体表达对妊娠结局的影响

目的：探讨多囊卵巢综合征（PCOS）患者子宫内膜性激素受体的表达与妊娠结局的关系。方法：选择2011-03～2012-03在我院行体外受精一胚胎移植（IVF—ET）的PCOS患者78例作为病例组。来我院因输卵管因素不孕而要求（IVF—ET）的正常妇女34例作为对照组。两组研究对象均于植入窗期应用宫腔吸管取出部分内膜组织后行胚胎移植,测定内膜雌,孕激素受体（ER,PR）的表达,统计两组妊娠率,生化妊娠率,早期流产率进行分析。结果：正常组与病例组的妊娠率,生化妊娠率,早期流产率具有统计学差异（P〈0．05）。病例组子宫内膜间质和腺体上ER表达在生化妊娠组、早期流产组、未妊娠组均明显高于正常组,PR的表达则较正常组降低差异均有统计学差异（P〈0．05）。妊娠组的ER、PR表达与正常组比较无统计学差异。病例组中妊娠组与非妊娠组子宫内膜间质和腺体上ER,PR的表达具有统计学差异（P〈0．05）。结论：PCOS患者子宫内膜的性激素受体异常表达影响子宫内膜容受性,降低患者的妊娠率。     

ER、PR在子宫腺肌病组织中的表达及临床意义研究

目的:探讨子宫腺肌病组织中雌激素受体(ER)、孕激素受体(PR)的表达及其临床意义。方法:应用免疫组化SP法检测40例子宫腺肌病患者子宫标本的在位内膜、异位内膜、腺肌病灶周边组织、正常肌层组织及40例正常子宫内膜组织正位内膜中ER、PR的表达。结果:子宫腺肌病患者异位内膜腺上皮ER、PR的阳性表达率分别为82.5%、80%,均低于其在在位内膜组织中的表达率97.5%、95%(P<0.05),而高于正常子宫内膜组织中的表达率57.5%、60%(P<0.05);子宫腺肌病病灶周边组织ER、PR的阳性表达率分别为47.5%、52.5%,均高于正常肌层组织的表达率25%、27.5%(P<0.05),而低于异位内膜组织的表达率82.5%、80%(P<0.05)。结论:子宫腺肌病是性激素依赖性疾病,其发病可能与ER、PR有关;子宫腺肌病病灶周边组织ER、PR的高水平表达可能是子宫腺肌病复发的重要原因之一。     

子宫内膜异位症组织中ER、PR和E-cad表达及其意义研究

目的检测雌激素受体（ER）、孕激素受体（PR）和上皮型钙粘蛋白（E-cad）在子宫内膜异位症（EMS）病人异位内膜和在位内膜中的表达,探讨2者在EMS发生发展中的作用。方法采用免疫组织化学法分别检测36例EMS病人的异位内膜和36例EMS病人的在位内膜组织中ER、PR和E-cad的表达,以24例子宫肌瘤病人正常子宫内膜作对照。结果EMS异位内膜组织中ER、PR的表达明显低于正常内膜组织和EMS在位内膜组织,差异均有统计学意义（P〈0.05）,而EMS在位内膜组织ER、PR表达明显高于正常内膜组织,差异亦均有显著性（P〈0.05）。上皮型钙粘蛋白的表达水平明显低于在位内膜（P〈0.05）,且其异位内膜的表达水平低于对照组（P〈0.05）。结论ER、PR和E-cad在EMS异位内膜和在位内膜中的异常表达,可能与EMS的发生发展有关。