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Statins Inhibit Growth of Human Theca-Interstitial Cells in PCOS and Non-PCOS Tissues Independently of Cholesterol Availability

机译:他汀类药物独立于胆固醇的可用性抑制PCOS和非PCOS组织中人体Theca-Intritiens细胞的生长

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Context: Polycystic ovary syndrome (PCOS) is associated with ovarian enlargement, prominent theca-interstitial hyperplasia, and excessive androgen production. Recent clinical trials have demonstrated that statins, 3-hydroxy-3-methyl-glutaryl-CoA reductase inhibitors, decrease androgen levels in women with PCOS.Objective: The present study evaluated the effect of statins on proliferation of human ovarian theca-interstitial cells.Design and Settings: In vitro experiments were performed in the university research laboratory.Patients: Human theca-interstitial cells were isolated from ovaries of PCOS (n = 4) and non-PCOS (n = 4) patients.Main Outcome Measures: The cells were incubated for 48 h without additives (control) or with simvastatin (3–30 μm), mevastatin (3–30 μm), and/or the cell- and mitochondrion-permeable form of cholesterol (22-hydroxycholesterol; 10 μm). To determine whether the effects of statins could be affected by leukocytes, the experiment was carried out on cells not purified of leukocytes and cells purified using anti-CD-45 immunomagnetic beads. The effect of statins on proliferation was evaluated by determination of DNA synthesis using radiolabeled thymidine-incorporation assay and by quantification of viable cells using 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenil)-2 H -tetrazolium assay.Results: Statins induced an inhibition of DNA synthesis in both the absence and the presence of 22-hydroxycholesterol; furthermore, 22-hydroxycholesterol alone also inhibited DNA synthesis. These effects of statins and 22-hydroxycholesterol were confirmed by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenil)-2 H -tetrazolium assay. Comparable inhibition of proliferation was observed in cells obtained from women with and without PCOS and in cell preparations treated and not treated with anti-CD-45 immunomagnetic beads.Conclusions: Statins inhibit proliferation of human theca-interstitial cells irrespective of the availability of cholesterol and independently of leukocytes both in normal and PCOS ovaries.
机译:背景:多囊卵巢综合征(PCOS)与卵巢肿大,突出的Theca - 间质增生和过度雄激素产生有关。最近的临床试验表明,三种羟基-3-甲基 - 谷氨酸-CoA还原酶抑制剂,降低妇女的雌激素水平。目前的研究评估了他汀类药物对人卵巢卵巢癌间质细胞增殖的影响。设计和设置:在大学研究实验室进行体外实验。患者:人类的患者 - 间质细胞从PCOS(n = 4)和非PCOS(n = 4)患者的卵巢中分离出来.AIN结果措施:细胞在没有添加剂(对照)或用辛伐他汀(3-30μm),兆汀(3-30μm)和/或细胞和线粒体渗透形式的胆固醇(22-羟基胆固醇;10μm)孵育48小时。为了确定他汀类药物的影响是否可能受白细胞影响,实验在未纯化白细胞和使用抗CD-45免疫磁珠纯化的细胞上进行的实验。通过使用放射性标记的胸苷掺入测定和使用3-(4,5-二甲基噻ol-2-基)-5-(3-羧甲氧基氧基苯基)-2-(3-羧甲氧基苯基)-2-通过测定活细胞的DNA合成来评估他汀类药物对增殖的影响。 (4-磺酚素)-2 h -tetrozolium assay.results:他汀类药物在缺乏和存在22-羟基胆固醇的存在下诱导DNA合成;此外,单独的22-羟基胆固醇还抑制DNA合成。通过3-(4,5-二甲基噻唑-2-基)-5-(3-羧甲氧基氧基苯基)-2-(4-磺胺苯酚)-2H-一点测定来证实他汀类药物和22-羟基胆粒醇的这些效果。在用抗CD-45免疫磁珠治疗的妇女和不治疗的细胞中获得的细胞中观察到增殖的相当抑制。结论:他汀类药物无论胆固醇的可用性如何抑制人类血栓间细胞的增殖在正常和PCOS卵巢中独立于白细胞。

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