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ETO在白血病发病机制中的研究进展 被引量:4

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摘要 血液系统恶性肿瘤常伴随相关的非随机染色体的异常,这种遗传学异常在白血病的发病、进展中起重要作用。AML中t(8;21)易位是最常见的核型异常之一,形成AML1-ETO融合蛋白。目前认为此融合蛋白主要是通过ETO基因的多个结构域与核受体转录共抑制物(N-COR)/组蛋白去乙酰化酶(HDAC)复合体作用以显性负模式阻滞AML1的转录激活,从而阻滞造血细胞的分化,在t(8;21)白血病中起重要作用。此外,AML1-ETO还能抑制PLZF的功能,使得正常情况下被PLZF抑制的基因解除抑制而表达。还能激活癌基因BCL-2的转录,有可能通过抗凋亡途径参与M2b型白血病的发病。这些都离不开AML1的伙伴基因ETO的作用。本文即是以AML1-ETO为例探讨ETO基因在白血病发病中的可能作用机制。
作者 潘勤 陈赛娟
出处 《国外医学(遗传学分册)》 2004年第2期85-89,93,共6页 Foreign Medical Sciences(Section of Genetics )
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参考文献23

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同被引文献13

  • 1郭霞,李强.急性白血病发病机制研究进展[J].实用儿科临床杂志,2005,20(7):690-693. 被引量:17
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  • 6Yah M, Kanbe E, Peterson LF, et al. A previously unidentified alternatively spliced isoform of t(8 ;21 ) transcript promotes leuke- mogenesis. Nature Medicine, 2006,12:945-959.
  • 7Yan M,Burel SA,Peterson LF,et al.Deletion of an AML1-ETO Cterminal NcoRSMRT-interacting region strongly induces leukemia development.Proc Natl Acad Sci U S A,2004,101:17186-17191.
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  • 10曾慧敏,郭晔,竺晓凡.t(8;21)急性髓系白血病发病机制的研究进展[J].中国实验血液学杂志,2010,18(6):1632-1637. 被引量:3

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