聚己内酯-透明质酸静电纺丝膜联合间充质干细胞修复子宫内膜损伤

背景:人子宫内膜间充质干细胞能够直接修复受损的子宫内膜,促进血管生成、恢复子宫形态结构,然而将干细胞直接注入受损子宫内膜后的细胞存活率低、滞留时间短,修复效果有限。目的:观察聚己内酯-透明质酸静电纺丝膜复合人子宫内膜间充质干细胞修复大鼠子宫内膜损伤的效果。方法:①细胞实验:采用胶原酶消化法提取人子宫内膜间充质干细胞,静电纺丝技术制备聚己内酯-透明质酸静电纺丝膜。将人子宫内膜间充质干细胞分别接种于聚苯乙烯培养板与聚己内酯-透明质酸静电纺丝膜上,通过DNA定量分析、WST-1细胞活性实验、鬼笔环肽染色、扫描电镜观察细胞的增殖与黏附能力,qRT-PCR检测静电纺丝膜上细胞CD90、Meflin的mRNA表达。②动物实验:取27只处于动情期的雌性SD大鼠,通过机械搔刮法建立宫腔粘连模型后随机分为3组,每组9只:空白对照组不进行任何治疗,对照组将聚己内酯-透明质酸静电纺丝膜植入宫腔损伤部位,实验组将聚己内酯-透明质酸静电纺丝膜/人子宫内膜间充质干细胞补片植入宫腔损伤部位。术后第3,7,14天取材,采用苏木精-伊红染色观察子宫形态结构及腺体数量,qRT-PCR和免疫荧光染色观察子宫组织CD31、血管内皮生长因子的表达。结果与结论:①细胞实验:与聚苯乙烯培养板相比,聚己内酯-透明质酸静电纺丝膜可促进人子宫内膜间充质干细胞的增殖与黏附,并且聚己内酯-透明质酸静电纺丝膜支持人子宫内膜间充质干细胞基因CD90和Meflin的表达;②动物实验:苏木精-伊红染色显示,聚己内酯-透明质酸静电纺丝膜/人子宫内膜间充质干细胞补片可促进子宫内膜损伤后形态结构的恢复,术后第14天的内膜厚度与腺体数量均多于空白对照组、对照组(P<0.05);qRT-PCR和免疫荧光染色检测显示,实验组术后第7,14天的CD31、血管内皮生长因子mRNA与蛋白表达均高于空白对照组、对照组(P<0.05);③结果表明:聚己内酯-透明质酸静电纺丝膜可以提高干细胞的存活率、延长干细胞与受损组织的接触时间,二者复合移植可更好地修复受损子宫内膜组织。

基于微流控芯片评估富血小板血浆促进子宫内膜细胞的增殖

背景:富血小板血浆可促进薄型子宫内膜细胞的增殖,但存在剂量难以控制、取样困难等问题。微流控芯片具有高通量、低消耗、操作简便等优点,为模拟子宫内膜细胞在体微环境提供了新途径。目的:利用三通道微流控芯片构建富血小板血浆促进子宫内膜细胞增殖的研究模型。方法:从1名女性外周静脉血中提取富血小板血浆。采用含不同浓度[0%(对照),0.5%,1%,2%]富血小板血浆的无血清细胞培养基培养人子宫内膜间质细胞,采用划痕实验检测细胞迁移,CCK-8法检测细胞增殖。利用聚二甲基硅氧烷胶制备微流控芯片,该微流控芯片设计有3个通道,中间通道为细胞外基质水凝胶通道,左右两侧分别为人子宫内膜间质细胞及富血小板血浆通道,3个通道之间保存有可以相互沟通以及实现物质交换的面积,实验组两侧通道分别加入人子宫内膜间质细胞(绿色荧光蛋白GFP标记)和含0.5%富血小板血浆的无血清培养基,对照组两侧通道分别加入人子宫内膜间质细胞(绿色荧光蛋白GFP标记)和无血清细胞培养基,共培养48 h后,采用Ki67免疫荧光染色观察细胞增殖与迁移。结果与结论:(1)细胞划痕实验和CCK-8检测结果显示,与对照组相比,0.5%,1%,2%浓度的富血小板血浆可促进人子宫内膜间质细胞的迁移与增殖(P <0.05),并且0.5%浓度富血小板血浆的促进细胞迁移与增殖作用强于其他2个浓度(P <0.05);(2)Ki67免疫荧光染色结果显示,与对照组相比,实验组人子宫内膜间质细胞的增殖和迁移能力更强;(3)实验证实通过三通道微流控芯片可以模拟子宫内膜细胞的微环境,同时利用该系统验证了富血小板血浆可显著促进子宫内膜间质细胞的增殖与迁移。

Analyses of circRNA profiling during the development from pre-receptive to receptive phases in the goat endometrium

Background: Recent studies have revealed that noncoding RNAs play important regulatory roles in the formation of endometrial receptivity.Circular RNAs(circRNAs) are a universally expressed noncoding RNA species that have been recently proposed to act as miRNA sponges that directly regulate expression of target genes or parental genes.Results: We used Illumina Solexa technology to analyze the expression profiles of circRNAs in the endometrium from three goats at gestational day 5(pre-receptive endometrium,PE) and three goats at gestational day 15(receptive endometrium,RE).Overall,21,813 circRNAs were identified,of which 5,925 circRNAs were specific to the RE and 9,078 were specific to the PE,which suggested high stage-specificity.Further analysis found 334 differentially expressed circRNAs in the RE compared with PE(P < 0.05).The analysis of the circRNA-miRNA interaction network further supported the idea that circRNAs act as miRNA sponges to regulate gene expression.Moreover,some circRNAs were regulated by estrogen(E2)/progesterone(P4) in endometrial epithelium cell lines(EECs) and endometrial stromal cell line(ESCs),and each circRNA molecule exhibited unique regulation characteristics with respect to E2 and P4.Conclusions: These data provide an endometrium circRNA expression atlas corresponding to the biology of the goat receptive endometrium during embryo implantation.

Endometrial mesenchymal stem cells as a cell based therapy for pelvic organ prolapse

Pelvic organ prolapse(POP) occurs when the pelvic organs(bladder, bowel or uterus) herniate into the vagina, causing incontinence, voiding, bowel and sexual dysfunction, negatively impacting upon a woman's quality of life. POP affects 25% of all women and results from childbirth injury. For 19% of all women, surgical reconstructive surgery is required for treatment, often augmented with surgical mesh. The surgical treatment fails in up to 30% of cases or results in adverse effects, such as pain and mesh erosion into the bladder, bowel or vagina. Due to these complications the Food and Drug Administration cautioned against the use of vaginal mesh and several major brands have been recently been withdrawn from market. In this review we will discuss new cell-based approaches being developed for the treatment of POP. Several cell types have been investigated in animal models, including a new source of mesenchymal stem/stromal cells(MSC) derived from human endometrium. The unique characteristics of endometrial MSC, methods for their isolation and purification and steps towards their development for good manufacturing practice production will be described. Animal models that could be used to examine the potential for this approach will also be discussed as will a rodent model showing promise in developing an endometrial MSC-based therapy for POP. The development of a preclinical large animal model for assessing tissue engineering constructs for treating POP will also be mentioned.

Comparison on In-Vitro Culture Methods of Yak Endometrial Gland Epithelial Cells

[ Objective] To develop in-vitro culture methods of yak endometrial gland epithelial cells. [Method] The gland epithelial cells were isolated from yak endometrium by explant culture method and digestion culture method, respectively. [ Result] In the first method, the cells isolated from the endometrium explant could merge into monolayer after 8-d culture, and they could be purified by gradation digestion with trypsin. In the second method, the endometrium explant were first digested by collagenase II by incubation at 37℃ for 2.5 h and then further digested in fresh 2 g/L colla- genase II for another 2.5 h. The cell suspension was leached through 74 pm filter and centrifuged at 400 r/min for 5 min. Then the cell pellet was re-suspended, followed by natural sedimentation to collect purified gland epithelial cells. The isolated cells were cytokeratin-positive as detected by immunocytochemical staining, and the positive rate could reach 95%. [Conclusion] The yak endometrial gland epithelial cells can be isolated and purified by both the explant culture method and digestion culture method.

TNF<i>α</i>and IL1<i>β</i>Stimulate Differential Gene Expression in Endometrial Stromal Cells

The purpose of this study was to test the hypothesis that specific macrophage-secreted cytokines cause gene expression changes in endometrial stromal cells that reproduce the effects of macro-phages in the development of endometriosis. Telomerase-immortalized human endometrial stromal cells (T-HESC) were treated with tumor necrosis factor α (TNFα, 5 ng/ml) and interleukin 1β (IL1β, 1 ng/ml). Differential expression of 249 genes was identified by DNA microarray. Ontologies such as peptidases, cell adhesion, cell death/cell cycle, growth factors, cytoskeletal organization, defense/immune system, signal transduction, and transcriptional regulation which are related to the development of endometriosis were represented by these genes. The up-regulation of interleukin 8 (IL8), interleukin 6 (IL6), IL1β and matrix metallopro-teinase 3 (MMP3) in response to TNFα ± ILIβ in T-HESC cells was confirmed by real time RT-PCR. TNFα ± ILIβ did not affect the migration or invasion of T-HESC cells. This study reinforces our previous investigations on communication between cells of the immune system and endometrial stromal cells and their potential role in the development of endometriosis.

Effect of deforolimus and VEGF on angiogenesis in endometrial stromal cells following three-dimensional culture

The presence of endometrial tissue outside of the uterine cavity is named endometriosis and is the most common gynecologic disorder in women. Determining the inhibitory effect of a Deforolimus on angiogenesis in a three-dimensional (3-D) culture of human endometrial stromal cells (hEnCs) in vitro. The important mechanism in the pathogenesis of endometriosis is angiogenesis, and deforolimus has been shown to have anti-angiogenic activity. This was an in vitro study of human endometrial stromal cells in 3-D culture of fibrin matrix. Endometrial stromal cells isolated and placed in a 3-D fibrin matrix culture system for angiogenesis with VEGF and inhibit angiogenesis by deforolimus. Finally these cells analyzed by CD31 antibodies. After 3 weeks, in cells treated with VEGF, endothelial cell branching was observed and rudimentary capillary-like structures formed. In the presence of 5μM of deforolimus, angiogenesis was reduced. The deforolimus were shown to be effective in inhibiting the mechanisms of angiogenesis.

Stimulation of decidua development by transplantation of endometrial stem cells

On all terms of pregnancy, insolvency of decidual reaction of endometrial cells is one of the reasons of miscarriages and fetal growth delay. The insufficient decidualization of endometrum leads to infertility in such pathologies, as Asherman’s syndrome and an endometrium atrophy. However, there are data on successful application of autologous bone marrow MSCs for Asherman’s syndrome treatment. The aim of this work was to assay the effect of endometrial mesenchymal stem cell (eMSC) transplantation for decidualization process in pseudopregnant rat. Our study showed that injection of human eMSC suspension into the uterine lumen of pseudopregnant rats facilitated more intensive development of decidua in comparison with phosphate buffed saline (PBS) injection in the control uterine horn. Histological analysis of decidua sections did not reveal any alterations in cell differentiation or tissue structure. In conclusion, we demonstrated for the first time that eMSC transplantation assists the development of all decidual tissue elements. It opens the possibility that eMSCs may be applied for cell therapy of infertility associated with decidualzation insufficiency.

The effect of Chinese herbal medicine“heche assisted pregnancy recipe”on endometrial estrogen and progesterone receptor,proliferating cell nuclear antigen and vascular endothelial growth factor in the patients with infertility

Objectives:To investigate the effect of Chinese herbal medicine"heche assisted preg-nancy recipe (HCAPR)" on estrogen receptor(ER), progesterone receptor (PR), pro-lifierating cell nuclear antigen(PCNA) and vascular endothelial growth factor (VEGF)in endometrium of infertile women.Methods: The S-P immunohistochemical assay was used to observe expression ofER, PR , PCNA and VEGF in late proliferative phase before and after the HCAPR treat-ment.Results: After the treatment, the expression of ER,PR,PCNA and VEGF in nucleiof glandular epithelium and stromal cells was significantly stronger (all P＜0. 001) re-spectively than that before treatment , especially the expression of PCNA and VEGF.Conclusions: These results suggest that traditional Chinese medicine HCAPR oftonifying kidney and regulating menstruation increased the synthesis of ER,PR, PCNAand VEGF, which may promote normal growth and development of the endometrium ,improve the micro-environment of the endometrium, and enhance uterine receptivity.The evidence may provide theoretical basis for therapy infertility with Chinese herbalmedicine.

<i>In vivo</i>effect of 17-β-estradiol, progesterone, hCG and expression of P53 and P21 in endometrial Ishikawa cells

The following article has been retracted due to the investigation of complaints received against it. The Editorial Board found that the first author published the paper without other authors’ consent and approval. The scientific community takes a very strong view on this matter, and the OJOG treats such behavior seriously. This paper published in Vol. 3 No. 1, 105-110 (pages), 2013, has been removed from this site.

THE EXPRESSION OF p16 AND CYCLIN D_1 IN PROLIFERATIVE ENDOMETRIUM AND ENDOMETRIAL CARCINOMA

Objective To study the role of p16 and cyclin D 1 in the genesis and development of endometrial carcinoma.Methods 12 cases of normal endometrium,22 cases of proliferative endometrium and 41 cases of endometrial carcinoma were detected for the expression of p16 and cyclin D 1 by means of immunohistochemical S P. Results In normal endometrium p16 was expressed while cyclin D 1 was almost negative in the proliferative phase,but both of them were negative in the secretory phase.Among the groups of the simple and compound hyperplasia, the atypical hyperplasia and the endometrial carcinoma,the expression of p16 showed a descending tendency, while the expression of cyclin D 1 showed an ascending tendency.In endometrial carcinomas the expression of p16 was significantly lower than that of normal endometrium and proliferative endometrium( P <0.01, P <0.05).However, the expression of cyclin D 1 in proliferate endometrium and endometrial carcinoma was significantly higher than that in normal endometrium ( P<0.05,P<0.01) .The overexpression of cyclin D 1 in the atypical hyperplasia group was obviously different from that in the simple and compound hyperplasia group ( P <0.01).In endometrial carcinoma,the expression of p16 was decreasing with the descending of cell differentiate degree, on the opposite, the expression of cyclin D 1 was increased and there existed a negative correlation between them.It was also observed that the overexpression of cyclin D 1 was significant different between G 1 and G 2,G 3(P<0.01).Conclusion p16 is a negative regulating factor of cell cycle in endometrial carcinoma, while cyclin D 1 is a positive one.Both of them are important in the genesis and development of endometrial carcinoma.The low expression of p16 and the overexpression of cyclin D 1 are related with the malicious biological behaviors of endometrial carcinoma and maybe play an important role in the judgement of prognosis.Overexpression of cyclin D 1 may be an earlier molecular event in the genesis of endometrial carcinoma.

桂楼复方对子宫腺肌病异位内膜细胞迁移和侵袭的影响研究

背景子宫腺肌病(AM)是妇科常见的疑难病,但其具体机制尚未明确。中医药治疗AM有一定优势,前期研究显示,桂楼复方宫内缓释系统可明显降低AM模型大鼠子宫内膜细胞增殖、侵袭能力。目的探讨桂楼复方对子宫腺肌病异位内膜细胞(AMDC)迁移、侵袭的影响,并研究其对Rho/ROCK信号通路的影响。方法本研究于2021年10月—2023年4月在山东中医药大学附属医院实验中心完成。使用CCK-8法检测AMDC细胞活力并筛选最佳药物浓度。设置空白组,使用桂楼复方(50、100 mg/L)处理AMDC,划痕实验检测细胞迁移能力,Transwell实验检测细胞侵袭能力,免疫印迹法Western Blotting)/实时荧光定量PCR(RT-qPCR)法检测RhoA、RhoB、RhoC、ROCK1、ROCK2在蛋白和mRNA水平的表达情况。Rescue实验中使用激动剂U-46619(1μmol/L)和桂楼复方(100 mg/L)处理AMDC,Western Blotting法检测RhoA、RhoB、RhoC、ROCK1、ROCK2的蛋白表达改变情况。结果与空白组比较,100 mg/L桂楼复方干预后AMDC细胞存活率未明显降低,差异无统计学意义(P>0.05),是不影响细胞活性的最佳药物浓度。选取50、100 mg/L桂楼复方进行后续实验。与空白组比较,桂楼复方50 mg/L、100 mg/L组AMDC迁移、侵袭能力受到抑制(P<0.001),RhoA、RhoC、ROCK1、ROCK2的蛋白及mRNA表达水平下调(P<0.001),U-466191μmol/L组RhoA、RhoC、ROCK1、ROCK2的蛋白表达上调(P<0.001)。与U-466191μmol/L组比较,U-466191μmol/L联合桂楼复方100 mg/L组RhoA、RhoC、ROCK1、ROCK2的蛋白表达下调(P<0.001)。空白组与桂楼复方50 mg/L、100 mg/L组RhoB的蛋白及mRNA表达水平差异均无统计学意义(P>0.05)。结论桂楼复方可有效抑制AMDC的迁移、侵袭能力,不影响细胞活性的最佳药物浓度为100 mg/L,桂楼复方可下调RhoA、RhoC、ROCK1、ROCK2的蛋白及mRNA表达水平,并可逆转U-46619对RhoA、RhoC、ROCK1、ROCK2蛋白表达水平的上调作用,从而抑制AM病局部异位病灶的持续进展,其作用可能与调控Rho/ROCK通路密切相关。

H9胚胎干细胞源细胞外囊泡促进子宫内膜损伤修复的研究

目的:探究H9人胚胎干细胞(H9-hESCs)细胞外囊泡(EVs)对子宫内膜损伤修复的影响。方法:从H9-hESCs培养上清中提取EVs并鉴定。建立小鼠子宫内膜损伤模型,将其双侧子宫分为EVs实验组和PBS对照组,分别进行EVs和PBS注射,HE染色观察子宫内膜组织病理学变化、免疫组化法分析增殖细胞核抗原(PCNA)表达情况。通过EdU法、Western blot法评估EVs对人子宫内膜基质细胞(hEndoSCs)增殖的影响。结果:H9-hESCs-EVs是粒径为(144.7±2.1)nm并且具有膜结构的纳米小体,表达CD63和TSG101特征蛋白。与PBS组相比,EVs实验组子宫内膜组织形态完整、厚度及腺体数量增加,EVs实验组PCNA表达的平均光密度较PBS组显著升高(P<0.05)。EdU、Western blot检测结果显示H9-hESCs-EVs促进hEndoSCs增殖,且与EVs呈现蛋白浓度正相关(P<0.05)。结论:H9-hESCs-EVs通过提高子宫内膜基质细胞增殖促进子宫内膜损伤修复。

薄型子宫内膜的病理生理特征和治疗的研究进展

良好的子宫内膜容受性对成功妊娠至关重要,子宫内膜过薄会导致内膜容受性受损,造成不良妊娠结局。如何治疗薄型子宫内膜、改善内膜容受性、提高胚胎种植率是生殖领域亟需解决的问题。研究薄型子宫内膜的病理生理特征能使临床治疗更具针对性。上皮细胞和巨噬细胞等增殖受损、卵巢类固醇激素及其受体表达减少、细胞外基质过度沉积和细胞衰老等共同参与了薄型子宫内膜的发生和发展。临床治疗薄型子宫内膜的方式较多,如使用雌激素、阿司匹林、他莫昔芬等辅助药物,盆底神经肌肉电刺激,干细胞移植,宫腔灌注粒细胞集落刺激因子和富血小板血浆等,但仍有部分顽固性难治性薄型子宫内膜患者对这些治疗方式反应不佳。现对薄型子宫内膜的病理生理特征及临床治疗进展进行综述。

人脐带间充质干细胞培养上清对米非司酮处理的人子宫内膜基质细胞存活、凋亡和子宫内膜容受性的影响

目的:探讨人脐带间充质干细胞培养上清(hUCMSCs-Sup)对米非司酮(Ms)处理的人子宫内膜基质细胞(hEndoSCs)增殖、凋亡和子宫内膜容受性的影响,并阐明其可能的作用机制。方法:体外培养hEndoSCs,分为对照组和40、60、80及100μmol·L-1 Ms组,MTT法检测各组细胞存活率。hEndoSCs分为对照组、40μmol·L-1 Ms组和60μmol·L-1 Ms组,流式细胞术检测各组细胞凋亡率,Western blotting法检测各组细胞中凋亡相关蛋白B细胞淋巴瘤2 (Bcl-2)和Bcl-2相关X蛋白(Bax)蛋白表达水平并计算Bcl-2/Bax比值。hUCMSCs-Sup作用后,hEndoSCs分为对照组、Ms组、Ms+hUCMSCs-Sup组和Ms+hUCMSCs-Sup+3-甲基腺嘌呤(3-MA)组,MTT法检测各组细胞存活率,流式细胞术检测各组细胞凋亡率,Western blotting法检测各组细胞中微管相关蛋白1轻链3B-Ⅱ(LC3B-Ⅱ)和微管相关蛋白1轻链3B-Ⅰ(LC3B-Ⅰ)蛋白表达水平并计算LC3B-Ⅱ/LC3B-Ⅰ比值,实时荧光定量PCR (RT-qPCR)法检测各组细胞中子宫内膜容受性标志分子mRNA表达水平。结果:与对照组比较,40、60、80和100μmol·L-1 Ms组细胞存活率明显降低(P<0.05),且具有时间和剂量依赖性。与对照组比较,40和60μmol·L-1 Ms组细胞凋亡率明显升高(P<0.05),细胞中Bcl-2/Bax比值明显降低(P<0.05)。hUCMSCs-Sup作用后,与对照组比较,Ms组细胞存活率和细胞中LC3B-Ⅱ/LC3B-Ⅰ比值明显降低(P<0.05),细胞凋亡率明显升高(P<0.05),细胞中同源框基因A10 (HOXA10)、白血病抑制因子(LIF)和整合素亚基β3 (ITGB3) mRNA表达水平明显降低(P<0.05);与Ms组比较,Ms+hUCMSCs-Sup组细胞存活率和细胞中LC3B-Ⅱ/LC3B-Ⅰ比值明显升高(P<0.05),细胞凋亡率明显降低(P<0.05),细胞中HOXA10、LIF和ITGb3 mRNA表达水平表达明显升高(P<0.05);与Ms+hUCMSCs-Sup组比较,Ms+hUCMSCs-Sup+3-MA组细胞存活率和细胞中LC3B-Ⅱ/LC3B-Ⅰ比值明显降低(P<0.05)。结论:hUCMSCs-Sup可提高Ms处理后hEndoSCs的存活率,降低其凋亡率,提高子宫内膜容受性,其机制可能与hUCMSCs-Sup激活hEndoSCs自噬有关。

干细胞治疗薄型子宫内膜的研究进展

子宫容受性的一个公认标志是子宫内膜的厚度,过薄的子宫内膜不仅会造成女性月经不规律,还会降低育龄期女性的胚胎着床率和活产率,也是导致辅助生殖周期取消的重要原因之一。目前有许多方法可用于治疗薄型子宫内膜,但尚未有明确的共识或指南。近些年来,干细胞因其具有无限自我更新和增殖分化为多种细胞类型的能力成为多学科研究的热点。利用干细胞修复受损的子宫内膜成为一种新的选择。移植经血、骨髓、脐带、胎盘及脂肪等不同来源的干细胞可以有效促进子宫内膜再生和恢复,改善子宫内膜的功能。本文对近年来干细胞治疗薄型子宫内膜的应用进展以及干细胞临床治疗的优缺点进行了分析,旨在为未来的临床治疗及科研创新提供思路。

Apelin在女性生殖健康中的研究进展

Apelin是一种脂肪因子,包括Apelin-13、Apelin-36等多种亚型,通过参与免疫调节、氧化应激、糖脂代谢、细胞凋亡等调节生理功能。Apelin与多囊卵巢综合征、卵巢癌等女性生殖系统疾病密切相关,有望为此类疾病的进一步研究及治疗提供靶点与方向。

子宫内膜腺上皮及基质细胞分离、培养作为子宫内膜异位症体外细胞模型的探索

目的 :探索在位子宫内膜腺上皮及基质细胞的分离、培养作为子宫内膜异位症 (EMs)的体外细胞模型。方法 :通过酶解、系列过滤、沉降及贴壁纯化等技术 ,分离、纯化及培养 15份EMs患者的在位子宫内膜腺上皮细胞及其基质细胞 ,并拟传代。结果 :11份标本获得成功 ;每 1g新鲜子宫内膜组织可得到 (8～ 12 )× 10 6个原代基质细胞及 (4～ 8)× 10 6个原代腺上皮细胞 ;基质细胞纯度率可达 95 %以上 ,腺上皮细胞的纯度率约为90 %。基质细胞可以有限的传代 ,腺上皮细胞不能传代。通过改良步骤 ,可提高基质细胞的产量。结论 :在位子宫内膜腺上皮及其基质细胞的分离、培养可作为EMs的体外细胞模型之一。

人子宫内膜细胞培养及形态学观察

１３例妇女的子宫内膜组织标本经酶消化分离成腺体及单个细胞后在体外培养。通过光镜及电镜观察可鉴别三种形态特征的细胞，一种为上皮细胞，细胞之间可见连接复合体，免疫组化角蛋白（ｋｅｒａｔｉｎ）染色呈阳性反应。第二种为子宫内膜间质细胞。第三种是成纤维细胞。后两种细胞无细胞间连接结构，角蛋白染色均呈阴性反应，而纤维连接素（ｆｉｂｒｏｎｅｃｔｉｎ），系间质细胞的一种特异性蛋白质）染色呈阳性。上述三种细胞均能在体外培养并传代。

山羊子宫内膜基质细胞的分离培养及鉴定

对山羊子宫内膜基质细胞进行分离与体外培养,研究其生长特性,并对其进行免疫细胞化学染色鉴定。结果表明,山羊子宫内膜在37℃条件下,以2 g／L的胶原酶Ⅰ型消化3～4 h效果最好;采用过滤—低速离心—沉降相结合的方法分离山羊子宫内膜基质细胞效果较好,所得细胞在培养后0．5 h开始贴壁,培养12 h后,可见梭形和多角形2种形态的细胞,3～4 d呈网状铺满皿底,有明显的重叠生长现象;免疫细胞化学染色显示这2种形态的细胞均表达波形蛋白,阳性率可达95％以上,不表达角蛋白。说明采用本文所述的消化和分离方法可获得高纯度的子宫内膜基质细胞。