Dissecting the role of aberrant DNA methylation in human leukaemia.

Dissecting the role of aberrant DNA methylation in human leukaemia.
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DOI:
10.1038/ncomms8091
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发表时间:
2015-05-22
影响因子:
16.6
通讯作者:
Tenen, Daniel G.
Tenen, Daniel G.
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Amabile, Giovanni;Di Ruscio, Annalisa;Mueller, Fabian;Welner, Robert S.;Yang, Henry;Ebralidze, Alexander K.;Zhang, Hong;Levantini, Elena;Qi, Lihua;Martinelli, Giovanni;Brummelkamp, Thijn;Le Beau, Michelle M.;Figueroa, Maria E.;Bock, Christoph;Tenen, Daniel G.

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慢性髓系白血病(CML)是一种以编码bcr-abl融合癌基因的t(9;22)(q34;q11.2)基因易位为特征的骨髓增殖性疾病。然而,许多疾病进展的分子机制仍然知之甚少。越来越多的证据表明,表观遗传异常与慢性粒细胞白血病的酪氨酸激酶抵抗有关,导致白血病克隆逃逸和疾病传播。在这里,我们表明,通过对原代CML细胞应用细胞重编程,异常的DNA甲基化有助于疾病的演变。重要的是,使用BCR-ABL可诱导的小鼠模型,我们证明了单个致癌病变触发DNA甲基化变化,这反过来又在白血病进展中起到沉淀事件的作用。
Chronic Myeloid Leukemia (CML) is a myeloproliferative disorder characterized by the genetic translocation t(9;22)(q34;q11.2) encoding for the BCR-ABL fusion oncogene. However, many molecular mechanisms of the disease progression still remain poorly understood. A growing body of evidence suggests that epigenetic abnormalities are involved in tyrosine kinase resistance in CML, leading to leukemic clone escape and disease propagation. Here we show that, by applying cellular reprogramming to primary CML cells, aberrant DNA methylation contributes to the disease evolution. Importantly, using a BCR-ABL inducible murine model, we demonstrate that a single oncogenic lesion triggers DNA methylation changes which in turn act as a precipitating event in leukemia progression.
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发表时间: 2012-07-11
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影响因子: 12.3
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