MicroRNA Regulates Estrogen Receptor Alpha in Breast Cancer Metastasis

R. Kumar, Xiu Jin, Yuan-huan Zhen, Pingsheng Hu
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引用次数: 5

Abstract

Breast cancer (BCa) is a common endocrine disorder among postmenopausal women and estradiol (E2) known causative agent for metastasis. During previous decade, tiny microRNAs (miRNAs) become a potential mediator of tumor suppressor or tumorigenic factor. Numerous miRNA regulates nuclear receptor ERα under the influence of estradiol (E2) such as miR101, miR-21 whereas miR145, miR-29a, miR-206, let-7 potentiates ERα proliferating activity. MiR-221/222 have established in hormone refractory condition after long exposure of Selective Estrogen Receptor Modulators (SERMs) or Selective Estrogen Receptor Down Regulator (SERDs). The target genes and the role of miRNAs in ERα mediated tumor progression is a challenging area of research that will open new clinical values as novel biomarkers in diagnosis and therapy.
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MicroRNA调控雌激素受体α在乳腺癌转移中的作用
乳腺癌(BCa)是绝经后妇女常见的内分泌紊乱,雌二醇(E2)是已知的转移的诱因。在过去的十年中,微小的microRNAs (miRNAs)成为肿瘤抑制因子或致瘤因子的潜在介质。许多miRNA在雌二醇(E2)的影响下调控核受体ERα,如miR101、miR-21,而miR145、miR-29a、miR-206、let-7则增强ERα的增殖活性。在长期暴露于选择性雌激素受体调节剂(SERMs)或选择性雌激素受体下调调节剂(SERDs)后,MiR-221/222在激素难治性条件下建立。靶基因和mirna在ERα介导的肿瘤进展中的作用是一个具有挑战性的研究领域,它将作为新的生物标志物在诊断和治疗中开辟新的临床价值。
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