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机构地区:[1]华中科技大学同济医学院附属同济医院生殖中心,武汉430030
出 处:《生殖医学杂志》2007年第1期35-39,共5页Journal of Reproductive Medicine
摘 要:目的通过体外实验研究雌激素、孕激素、肝素结合表皮生长因子(HB-EGF)对Ishikawa细胞中HOXA10基因表达的调节,探讨HOXA10基因在胚胎种植中的意义。方法体外培养高分化子宫内膜癌细胞Ishikawa,按实验目的分别加入雌激素、孕激素、雌孕激素联合、雌孕激素RU486联合、HB-EGF刺激48 h后,采用免疫荧光、逆转录聚合酶链反应、免疫印迹三种方法测定各个条件下Ishikawa细胞中HOXA10基因的表达。结果雌、孕激素单独或联合作用48 h后都可以显著提高Ishikawa细胞中HOXA10基因的表达(P<0.05),同时加RU486后HOXA10基因表达的上调趋势减弱。加HB-EGF刺激48 h后HOXA10基因的表达量增高(P<0.05)。结论雌、孕激素、HB-EGF对HOXA10基因的表达具有上调作用,RU486能够抑制孕激素的上调作用。Objective: To investigate the regulatory effect of multifactors (estrogen, progestin, and heparin-binding epidermal growth factor) on the HOXA10 gene expression in Ishikawa cells. Methods: The highly differentiated endometrial adenocarcinoma cells (Ishikawa cell line) were incubated with 17-beta estradiol (E2) (10^-8 mol/L), medroxyprogesterone acetate (MPA) (10^-6 mol/L), E2 (10^-8 mol/L) combined with MPA (10^-6 mol/L), E2 (10^-8 mol/L) combined with MPA (10^-6 mol/L) plus RU486 (10^-8mol/L), and HB-EGF(10 ng/ml) for 48 hours, respectively. The expression of HOXA10 gene was detected by immunofluorescence, reverse transcriptase-polymerase chain reaction (RT-PCR) and Western blotting. Results: Either estrogen alone, progestin alone or progestin combined with estrogen could significantly increase the expression of HOXA10 gene after 48 hours of treatment (P〈0.05). The up-regulation of HOXA10 gene expression by estrogen combined with progestin was inhibited by RU486. HB-EGF could elevate the expression level of HOXA10 gene after 48 hours of treatment (P〈0. 05). Conclusions: (1) Both estrogen and progestin can up-regulate the expression of HOXA10 gene in Ishikawa cells, but this up-regulation can be inhibited by RU486. (2) HB-EGF can elevate the level of HOXA10 gene.
关 键 词:HOXA10 ISHIKAWA细胞 调节 胚胎着床
分 类 号:R339.2[医药卫生—人体生理学]
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