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Regulation of hormonal therapy resistance by cellcycle machinery

机译:细胞周期机对激素治疗耐药性的调节

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Estrogen Receptor (ER) plays a central role in the development and progression of breast cancer. Hormonal therapy substantially improves disease-free survival of ER+ve breast tumors, however acquired resistance to endocrine therapies frequently occur. Emerging data implicate growth factor signaling pathways and their cross talk with ER as major cause of resistance. Both these pathways have been recently shown to use cell cycle machinery as downstream effectors in mediating therapy resistance. Several studies have demonstrated deregulation of cell cycle regulators and their cross talk with ER in therapy resistant tumors. The objective of this article is to review the underlying mechanisms by which tumor cells use cell cycle machinery to override hormonal therapy and to explore cell cycle machinery components as novel therapy targets for overcoming hormonal therapyresistance.
机译:雌激素受体(ER)在乳腺癌的发生和发展中起着核心作用。激素疗法可显着改善ER + ve乳腺肿瘤的无病生存期,但是经常发生内分泌疗法的耐药性。新兴数据暗示了生长因子信号通路及其与内质网的串扰是耐药的主要原因。最近显示这两种途径都将细胞周期机制用作介导治疗耐药性的下游效应子。几项研究表明,在治疗耐药性肿瘤中,细胞周期调节因子的失控及其与ER的相互作用。本文的目的是综述肿瘤细胞利用细胞周期机制来超越激素治疗的潜在机制,并探索细胞周期机制成分作为克服激素治疗耐药性的新型治疗靶标。

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