子宫内膜异位症患者子宫内膜IL-18表达的研究

目的 :研究子宫内膜异位症患者子宫在位内膜和异位内膜IL 18的表达 ,探讨IL 18在内异症发病机制中的意义。方法 :用免疫组化和半定量逆转录聚合酶链反应法检测对照组子宫内膜、子宫腺肌症患者子宫内膜和内异症患者的子宫在位内膜与异位内膜IL 18蛋白的表达位置及其mRNA表达水平。结果 :各组标本IL 18蛋白和mRNA的表达均阳性 ,内异症患者子宫在位内膜与异位内膜的IL 18mRNA表达水平分别为 1.0 5±0 .4 0、0 .77± 0 .39,均低于对照组子宫内膜 (1.6 5± 0 .6 4) ,差异有显著性 (P <0 .0 5 ) ;子宫腺肌症组IL 18mRNA表达水平为 1.6 3± 0 .6 0 ,与对照组子宫内膜IL 18mRNA表达水平差异无显著性。结论 :IL 18可能参与了子宫内膜异位症的发病 ,IL 18mRNA在内异症患者在位和异位内膜的低水平表达 ,可能是影响内异症形成和发展的重要因素之一。     

TWEAK在子宫内膜异位症在位和异位内膜上的表达

目的:探讨肿瘤坏死因子样凋亡的微弱诱导剂(TWEAK)在子宫内膜异位症(EMs)发病的关系。方法:采用实时定量逆转录-聚合酶链反应(Real-time RT-PCR)和免疫组化、Western Blot方法检测EMs患者在位内膜、异位病灶中TWEAK mRNA和蛋白的表达,并与正常对照子宫内膜比较。结果:TWEAK蛋白表达于子宫内膜的腺上皮细胞和间质细胞的胞浆内。与正常对照组内膜和在位组内膜相比,TWEAK mRNA和蛋白在异位内膜上表达量下调(P<0.05),且无论是EMs在位内膜还是对照组内膜,其增生期TWEAK mRNA表达明显低于分泌期(P<0.05)。结论:TWEAK在子宫内膜中表达,表达量在分泌期明显升高。EMs患者异位子宫内膜TWEAK表达降低,可能导致子宫内膜细胞的凋亡水平下降,参与EMs的发生发展过程。     

白细胞介素1α、β及γ干扰素mRNA在子宫内膜异位症患者异位和在位子宫内膜巨噬细胞中的表达

目的探讨白细胞介素(IL)1α、β mRNA和γ干扰素(IFN-γ)mRNA在子宫内膜异位症(内异症)患者异位和在位内膜巨噬细胞中的表达变化及意义.方法采用原位杂交技术检测40例内异症患者(内异症组)异位和在位内膜(增生期18例,分泌期22例)和15例子宫肌瘤患者(对照组)的内膜(增生期8例,分泌期7例)巨噬细胞中IL-1α、β和IFN-γmRNA表达水平.结果(1)内异症组患者异位、在位内膜及对照组内膜巨噬细胞中IL-1α mRNA阳性表达率分别为70%(28/40)、38%(15/40)和20%(3/15),表达水平分别为3.12±0.32、2.65±0.34、1.32±0.23;IL-1βmRNA阳性表达率分别为75%(30/40)、40%(16/40)和20%(3/15),表达水平分别为3.45±0.43、2.74±0.39、1.45±0.18;内异症组IL-1α、β mRNA的表达水平较对照组明显升高,内异症组异位内膜较在位内膜的表达水平也明显升高,差异均有统计学意义(P＜0.05).(2)内异症组在位内膜和对照组内膜巨噬细胞中IL-1α、β mRNA表达分泌期高于增生期,差异也有统计学意义(P＜0.05).(3)内异症组内膜巨噬细胞中IFN-γmRNA的表达水平与对照组比较,差异无统计学意义(P＞0.05),且无周期性变化.结论内异症患者在位内膜和异位内膜巨噬细胞IL-1表达明显增强,而IFN-γ表达则无明显变化,推测内膜巨噬细胞及其分泌的细胞因子,可能参与了内异症的发生、发展过程.     

血管内皮生长因子受体KDRmRNA和flt-1mRNA与子宫内膜异位症相关性研究

目的探讨血管内皮生长因子受体(VEGFR)中的fms样酪氨酸激酶受体(flt-1)和胎肝激酶受体(KDR)在子宫内膜异位症(内异症)患者异位及在位子宫内膜组织中的表达及其意义.方法采用RT-PCR技术,从核酸水平检测53例内异症患者(44例卵巢子宫内膜异位囊肿,30例内异症在位子宫内膜组织)中的VEGF受体KDRmRNA、flt-1mRNA的阳性表达率及相对表达强度,以40例正常子宫内膜组织作为对照.结果与对照组比较,研究组KDRmRNA和flt-1mRNA的阳性表达率高于对照组,差异有显著性(P＜0.05);研究组在位内膜增殖期与分泌期的阳性表达率、相对表达强度高于对照组子宫内膜组织,差异有显著性(P＜0.05);不同月经周期在位内膜组织KDRmRNA和flt-1mRNA的表达、两组增殖期KDRmRNA相对表达强度高于分泌期flt-1mRNA,而flt-1mRNA分泌期相对表达强度高于KDRmRNA.结论VEGF受体KDRmRNA和flt-1mRNA在内异症中有明显表达并呈周期依赖性.VEGF受体在内异症血管生成中的作用,可能与内异症远处转移、侵袭、种植相关.     

Spontaneous Apoptosis of Endometrial Tissue is Impaired in Women with Endometriosis

Objective: To evaluate spontaneous apoptosis in single-cell suspensions of eutopic and ectopic endometrium from women with endometriosis and in eutopic endometrium from fertile controls without endometriosis.

Design: Paired specimens of eutopic and ectopic endometrial tissue from patients with endometriosis and eutopic endometrium from controls were assessed for spontaneous apoptosis.

Setting: Institute for the Study and Treatment of Endometriosis and university-based research laboratories.

Patient(s): Fertile controls (n = 10) and women with untreated endometriosis (n = 16).

Intervention(s): None.

Main Outcome Measure(s): Spontaneous apoptosis assessed with an ELISA-based cell death detection kit.

Result(s): Spontaneous apoptosis (monitored by absorbance) of eutopic endometrium from patients with endometriosis and fertile controls was 0.63 ± 0.1 and 1.43 ± 0.11, respectively. Among patients with endometriosis, spontaneous apoptosis of ectopic endometrium was 0.26 ± 0.06. Decreased apoptosis of ectopic versus eutopic endometrium was observed independent of cycle phase.

Conclusion(s): The susceptibility of endometrial tissue to spontaneous apopoptosis is significantly lower in women with endometriosis than in fertile controls. We suggest that decreased susceptibility of endometrial tissue to apoptosis contributes to the etiology or pathogenesis of endometriosis.     

乙酰肝素酶和促血管生成素2与子宫内膜异位症发病的关系

目的探讨乙酰肝素酶（Hpa）和促血管生成素2（Ang-2）基因在子宫内膜异位症（内异症）发生、发展中的作用.方法采用逆转录PCR（RT-PCR）技术,检测86例内异症患者（内异症组,其中Ⅰ～Ⅱ期内异症患者25例,Ⅲ～Ⅳ期内异症患者61例）的异位和在位内膜组织及30例非内异症患者（对照组）的子宫内膜组织中Hpa mRNA和Ang-2 mRNA表达.结果（1）内异症组异位和在位内膜组织中,Hpa mRNA阳性表达率分别为62%（53/86）和55%（47/86）,两者比较,差异无统计学意义（P＞0.05）;对照组内膜组织中Hpa mRNA阳性表达率为27%（8/30）,明显低于内异症组,两组比较,差异有统计学意义（P＜0.05）.（2）内异症组异位和在位内膜组织中Ang-2 mRNA的阳性表达率分别为71%（61/86）和65%（56/86）,两者比较,差异无统计学意义（P＞0.05）;对照组内膜组织中Ang-2 mRNA的阳性表达率为33%（10/30）,明显低于内异症组,两组比较,差异有统计学意义（P＜0.05）.（3）Ⅰ～Ⅱ期内异症患者的异位及在位内膜组织中Hpa mRNA阳性表达率分别为44%（11/25）和32%（8/25）,明显低于Ⅲ～Ⅳ期内异症患者异位与在位内膜组织的阳性表达率[69%（42/61）和64%（39/61）],两者比较,差异有统计学意义（P＜0.05）.（4）Ⅰ～Ⅱ期内异症患者的异位及在位内膜组织中Ang-2 mRNA阳性表达率分别为60%（15/25）和64%（16/25）;Ⅲ～Ⅳ期患者异位与在位内膜组织的阳性表达率分别为75%（46/61）和66%（40/61）,不同期别内异症患者异位及在位内膜Ang-2 mRNA阳性表达率比较,差异无统计学意义（P＞0.05）.（5）内异症组的异位内膜组织中Hpa mRNA与Ang-2 mRNA的表达呈显著正相关（P＜0.05）.结论内异症患者异位和在位内膜组织中Hpa mRNA和Ang-2 mRNA均呈高表达,且二者呈正相关关系;推测Hpa和Ang-2可能与内异症的发生和发展有密切关系.     

Characterization of periostin expression in human endometrium and endometriotic lesions

Objective(s): To investigate the expression of periostin in the eutopic and ectopic endometrium of women diagnosed as endometriosis and evaluate the role of periostin in the pathogenesis of endometriosis. Study design: In this study, the expression of periostin was evaluated in the endometrial specimens from 35 women diagnosed as endometriosis and from 30 healthy women. To assess the presence and localization of periostin throughout the menstrual cycle in both eutopic and ectopic endometrium of women with endometriosis, microscopic evaluation was conducted. It was also subsequently compared with normal endometrium. Results: In the eutopic and ectopic endometrium of women with endometriosis, immunoreactivities of periostin increased compared with those of normal endometrium. We also observed a cyclic variation in the eutopic stromal periostin immunoreactivity throughout their menstrual cycle because higher H score values were observed in the proliferative phase than those in the secretory phase. Conclusion(s): These findings indicated that periostin may be involved in the pathophysiology of endometriosis.     

miRNA-135a对子宫内膜异位症HOXA10基因表达的调控的研究

目的:探讨miRNA-135a对子宫内膜异位症(EMs)中HOXA10基因表达的调控作用。方法:选取2013年1月到12月在天津市中心妇产科医院因EMs和单纯卵巢囊肿行腹腔镜手术的患者各80例。留取EMs患者的宫腔内膜组织(EMs在位内膜组)和异位内膜组织(EMs异位内膜组)以及单纯卵巢囊肿患者的宫腔内正常内膜组织。分别采用转染技术、实时荧光定量PCR技术检测miRNA-135a和HOXA10 mRNA的表达。结果:miRNA-135a和HOXA10 mRNA在不同月经周期表达水平不同。增殖期和分泌中期,EMs在位和异位内膜组织中miRNA-135a表达水平显著高于正常内膜,HOXA10 mRNA表达水平显著低于正常内膜,差异均有统计学意义(P0.01);EMs在位和异位内膜组织比较,差异均无统计学意义(P0.05)。经miRNA-135a、miRNA-135a抑制剂转染后,子宫内膜间质细胞中HOXA10 mRNA表达水平显著下降和升高,差异均有统计学意义(P0.01)。结论:EMs患者子宫内膜中HOXA10异常表达受miRNA-135a调控,miRNA-135a高表达抑制了HOXA10基因表达。     

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.     

Matrix metalloproteinase-9 and tissue inhibitor of metalloproteinase-3 mRNA expression in ectopic and eutopic endometrium in women with endometriosis: a rationale for endometriotic invasiveness

OBJECTIVE: To investigate mRNA expression of metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-3 (TIMP-3) in ectopic endometriosis tissue and uterine endometrium from women with and without endometriosis throughout the menstrual cycle. DESIGN: Molecular studies in human tissue. SETTING: Department of Gynecology and Obstetrics, Reproductive Immunology Laboratory, Stanford University Medical Center. PATIENT(S): Fifty-three premenopausal woman (23 women with endometriosis and 30 women without endometriosis undergoing laparoscopic surgery). Endometrium and ectopic endometriosis tissue were obtained at the time of surgery. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): mRNA expression from eutopic and ectopic endometrium was analyzed by quantitative, competitive PCR. RESULT(S): Both uterine endometrium and ectopic endometriotic tissue from women with endometriosis expressed significantly (P<.05) lower levels of TIMP-3 than endometrium from normal women. Also, ectopic endometrium expressed higher levels of MMP-9 and a higher ratio of MMP-9/TIMP-3 than eutopic endometrium from normal and endometriosis patients. CONCLUSION(S): These results suggest that ectopic and eutopic endometrium from endometriosis patients may be more invasive and prone to peritoneal implantation because of greater MMP and less TIMP-3 mRNA expression than endometrium from women without endometriosis. Thus, increased proteolytic activity may be one of the reasons for the invasive properties of the endometrium, resulting in the development of endometriosis.     

基质金属蛋白酶9及其组织抑制剂1在子宫内膜异位症组织中的表达

目的探讨基质金属蛋白酶9(MMP-9)及其组织抑制剂1(TTMP-1)在子宫内膜异位症(内异症)患者异位内膜及在位内膜中的表达,及其在内异症发病中的作用。方法选取38例根据美国生育学会修订的内异症分期法,诊断为内异症患者的卵巢内膜异位囊肿标本38份、腹膜红色病变标本16份及同期在位内膜35份组织作为研究组,以及非内异症患者的子宫内膜标本20份作为对照组。采用RT-PCR半定量技术,检测上述不同组织中MMP-9mRNA及TIMP-1mRNA的表达率及表达强度。结果两组所有标本均有TIMP-1mRNA表达,部分标本有MMP-9mRNA表达。研究组中,卵巢异位囊肿及腹膜红色病变组织MMP-9mRNA表达率分别为45%及56%,表达强度分别为0·46±0·22及0·33±0·12;同期在位内膜MMP-9mRNA表达率为57%,表达强度为0·49±0·28。卵巢异位囊肿、腹膜红色病变及同期在位内膜组织TIMP-1mRNA表达强度分别为1·67±0·79、1·45±0·68及2·31±1·21,前两者与后者比较,差异有统计学意义(P<0·05)。研究组在位内膜及对照组MMP-9的表达率分别为57%及45%;表达强度分别为0·49±0·28及0·29±0·12,两组比较,差异有统计学意义(P<0·05)。研究组在位内膜及对照组TIMP-1mRNA的表达强度分别为2·31±1·21及2·40±0·89。结论内异症患者在位内膜MMP-9mRNA的表达增强,促进了内膜的异位种植。异位内膜TIMP-1mRNA的表达减弱,可促使内异症病变的发展。     

血管内皮生长因子及血小板反应素在异位子宫内膜组织中的表达

目的：探讨血管内皮生长因子（VEGF）和血小板反应素（TSP）－1在子宫内膜异位症（内异症）患者异位及在位子宫内膜组织中的表达及其意义。方法：采用逆转录聚合酶链反应（RT－PCR）和Northern杂交法,检测38例内异症患者52份异位子宫内膜组织（腹膜红色病变12份,卵巢子宫内膜异位囊肿32份,宫骶韧带结节8份）,及30份在位子宫内膜组织（研究组）中VEGF mRNA及TSP－1 mRNA的阳性表达率,以25例非内异症患者的25份子宫内膜组织作为内异症患者在位内膜的对照（对照组）,结果：腹膜红色病变VEGF mRNA表达水平较高,TSP－1mRNA表达水平较低;卵巢子宫内膜异位囊肿VEGF mRNA表达水平较低,而TSP－1 mRNA表达水平较高,与对照组比较,研究组子宫内膜VEGF mRNA表达水平较高,而TSP－1mRNA表达水平较低。结论：内异症患者的异位子宫内膜中VEGF及TSP－1的表达,可能与其血管化程度有关,在位子宫内膜组织中VEGF及TSP－1表达水平的失衡,可能与内异症的生物学行为及发病有关。     

细胞间粘附分子-1在子宫内膜异位症在位内膜、腹腔液及异位灶中的表达及分析

目的:探讨ICAM 1与子宫内膜异位症的关系。方法:收集子宫内膜异位症患者(研究组)腹腔液30份、在位子宫内膜2 1份、异位病灶组织8份及非子宫内膜异位症患者中正常盆腔(对照组)腹腔液2 5份、子宫内膜2 0份。应用酶联免疫吸附试验双抗体夹心法测定腹腔液sICAM 1和免疫组化方法测定在位内膜、异位灶内膜ICAM 1表达。结果:子宫内膜异位症患者腹腔液中sICAM 1水平明显高于对照组(P <0 .0 1 ) ,子宫内膜的ICAM 1表达低于对照组同期子宫内膜的表达(P <0 .0 5 ) ,异位灶组织ICAM 1表达明显高于其在位内膜(P <0 .0 1 )及对照组内膜(P <0 .0 5 )。结论:子宫内膜异位症患者子宫内膜、腹腔液、异位灶内膜细胞间粘附分子的异常表达可能与子宫内膜异位症的发生发展关系密切。     

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。     

孕激素受体亚型在卵巢子宫内膜异位囊肿组织的表达

目的:探讨内异症治疗中“孕激素耐受”影响疗效的可能机制。方法:选取30例卵巢子宫内膜异位囊肿患者的巧克力囊肿组织,其中6例同时行子宫切除术患者的在位内膜组织和13例正常内膜组织,采用RT-PCR技术半定量检测子宫内膜异位症(EMs)组织中孕激素受体亚型hPR-A+B和hPR-B的基因表达。结果:巧克力囊肿组织中总PR和PR-BmRNA表达明显低于正常内膜组织和EMs患者在位内膜组织,差异有统计学意义;巧克力囊肿组织中PR-B/PR-A+BmRNA的比值低于正常子宫内膜组织,差异有统计学意义。结论:PR和PR-B/PR-A+BmRNA的比值降低可能与EM治疗中“孕激素耐受”相关。     

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。     

黏附分子VCAM-1和ICAM-1在子宫内膜异位症中的表达及意义

目的:探讨血管细胞黏附分子(VCAM-1)和细胞间黏附分子(ICAM-1)在子宫内膜异位症(EMT)发病中的作用及意义。方法:采用荧光定量聚合酶链反应技术(Real-Time PCR)和免疫印迹法(Western-Blot)分别检测EMT(15例)患者异位内膜、在位内膜和对照组(15例)子宫内膜中VCAM-1、ICAM-1mRNA及蛋白的表达情况。采用双抗夹心酶联免疫吸附实验(ELISA)检测EMT组(44例)与对照组(28例)中可溶性VCAM-1(s VCAM-1)和可溶性ICAM-1(s ICAM-1)的水平,并对VCAM-1、ICAM-1在不同组中的mRNA、蛋白及血清中的表达行相关性分析。结果:1EMT异位内膜组VCAM-1、ICAM-1mRNA的表达均明显高于在位内膜组及对照组(P0.01);在位内膜组VCAM-1、ICAM-1mRNA的表达与对照组差异无统计学意义(P0.05)。2EMT异位内膜组VCAM-1、ICAM-1蛋白的表达明显高于在位内膜组及对照组(P0.01),在位内膜组VCAM-1蛋白表达高于对照组(P0.01);EMT在位内膜组ICAM-1蛋白的表达与对照组比较差异无统计学意义(P0.05)。3EMT患者血清中s VCAM-1和s ICAM-1水平均明显高于对照组(P0.01),Ⅲ、Ⅳ期患者血清中s ICAM-1水平较Ⅰ、Ⅱ期患者明显升高(P0.01)。4EMT异位内膜组组织中VCAM-1与ICAM-1在mRNA、蛋白表达及血清中的水平均无相关性(P0.05)。结论:异位内膜的VCAM-1和ICAM-1的表达异常可能在EMT的发生发展中具有重要作用,但ICAM-1与VCAM-1在EMT中可能具有各自的信号通路及蛋白表达的途径。     

PTN和MK在子宫内膜异位症中的表达及意义

目的:探讨pleiotrophin(PTN)和midkine(MK)mRNA在子宫内膜异位症(EMs)中的表达及意义。方法:采用病例对照研究方法,以35例EMs患者在位和异位子宫内膜(研究组)以及25例非EMs妇女子宫内膜(对照组)为样本,应用半定量逆转录聚合酶链反应(RT-PCR)检测PTN、MK mRNA的表达。结果:研究组在位内膜中PTN和MK表达均明显高于对照组(P<0.01);异位内膜PTN mRNA表达高于对照组(P<0.05),差异有统计学意义。EMs在位内膜中PTN、MK mRNA表达与内异症的临床期别呈正相关。无论增殖期或分泌期,EMs在位内膜中PTN、MK表达均高于对照组(均P<0.05)。结论:EMs患者在位子宫内膜组织中PTN和MK表达的变化可能与子宫内膜异位症的发生、发展有关。     

Apoptosis and expression of Bcl-2 and Bax in eutopic endometrium from women with endometriosis

OBJECTIVE: To evaluate and compare spontaneous apoptosis and Bcl-2 and Bax expression in eutopic endometrium from women with and without endometriosis. DESIGN: Apoptosis and Bcl-2 and Bax expression were examined in eutopic endometrium from women with and without endometriosis. SETTING: Instituto de Biología y Medicina Experimental-CONICET, Department of Gynecology and Department of Gynecological Pathology, Clínicas University Hospital, Buenos Aires, Argentina. PATIENT(S): Women with untreated endometriosis (n = 14) and controls (n = 16). INTERVENTION(S): Collection of endometrial samples during diagnostic or therapeutic laparoscopy. MAIN OUTCOME MEASURE(S): Apoptotic cells were detected with use of the dUTP nick-end labeling (TUNEL) assay; Bcl-2 and Bax expressions were assessed with use of immunohistochemical techniques. RESULT(S): Spontaneous apoptosis was significantly lower in eutopic endometrium from patients with endometriosis, compared with healthy controls (2.26 +/- 0.53 and 9.37 +/- 1.69 apoptotic cells/field, respectively) and was independent of cycle phase. An increased expression of Bcl-2 protein was found in proliferative eutopic endometrium from patients with endometriosis. Bax expression was absent in proliferative endometrium, whereas there was an increase in its expression in secretory endometrium from both patients and controls. CONCLUSION(S): Women with endometriosis show decreased number of apoptotic cells in eutopic endometrium. The abnormal survival of endometrial cells may result in their continuing growth into ectopic locations.     

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.