首页> 外文期刊>Journal of clinical neuroscience: official journal of the Neurosurgical Society of Australasia >Effects of an estrogen receptor antagonist on proliferation, prolactin secretion and growth factor expression in the MMQ pituitary prolactinoma cell line.
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Effects of an estrogen receptor antagonist on proliferation, prolactin secretion and growth factor expression in the MMQ pituitary prolactinoma cell line.

机译:雌激素受体拮抗剂对MMQ垂体泌乳素瘤细胞系中增殖,催乳素分泌和生长因子表达的影响。

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The aim of this study was to investigate the functional role of estrogen receptor alpha (ERalpha) in MMQ pituitary prolactinoma cells in the absence of estrogen with respect to proliferation, prolactin (PRL) secretion, and expression of growth factors. MMQ cells were treated with the ERalpha antagonist fulvestrant, then proliferation and PRL secretion were measured using MTS and enzyme-linked immunosorbent assays. Levels of ERalpha, vascular endothelial growth factor (VEGF), matrix metalloproteinase-9 (MMP-9) and B cell leukemia/lymphoma-2 (BCL-2) were measured using quantitative polymerase chain reaction and western blot analysis. Fulvestrant acted as a potent inhibitor of ERalpha expression, and significantly inhibited cell proliferation (by up to 57.6+/-2.2%) and PRL secretion (by up to 81.0%). Fulvestrant also significantly altered the expression levels of VEGF, MMP-9 and BCL-2. We conclude that ERalpha plays an important functional role in pituitary prolactinomas and is also involved in the expression of particular growth factors, even in the absence of estrogen. Fulvestrant treatment may be an effective therapy for such tumors.
机译:这项研究的目的是研究在雌激素不存在的情况下,MMQ垂体催乳素瘤细胞中雌激素受体α(ERalpha)在增殖,催乳素(PRL)分泌和生长因子表达方面的功能。 MMQ细胞用ERalpha拮抗剂fulvestrant处理,然后使用MTS和酶联免疫吸附测定法测量增殖和PRL分泌。使用定量聚合酶链反应和蛋白质印迹分析来测量ERalpha,血管内皮生长因子(VEGF),基质金属蛋白酶9(MMP-9)和B细胞白血病/淋巴瘤2(BCL-2)的水平。 Fulvestrant充当ERalpha表达的有效抑制剂,并显着抑制细胞增殖(高达57.6 +/- 2.2%)和PRL分泌(高达81.0%)。 Fulvestrant还可以显着改变VEGF,MMP-9和BCL-2的表达水平。我们得出的结论是,即使在没有雌激素的情况下,ERalpha在垂体催乳素瘤中也起着重要的功能作用,并且还参与了特定生长因子的表达。溶剂型治疗可能是此类肿瘤的有效治疗方法。

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