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Nat Gene:发现新的人类急性白血病抑癌基因—SETD2

2014-02-13 佚名 新华网

我国科学家近期主导研究发现了一个在急性白血病病人中有较常见突变的抑癌基因,且揭示其功能异常与多种不同致癌基因之间的协同作用,因而为研发白血病新的治疗方法提供了重要基础。 这项白血病抑癌基因新成果10日在国际著名学术期刊《自然·遗传》上发表。该研究是在国家自然科学基金委、科技部、中科院以及天津市科委多个重点基金资助下,由中国医学科学院血液学研究所教授程涛、竺晓凡和中国科

我国科学家近期主导研究发现了一个在急性白血病病人中有较常见突变的抑癌基因,且揭示其功能异常与多种不同致癌基因之间的协同作用,因而为研发白血病新的治疗方法提供了重要基础。【原文下载】

这项白血病抑癌基因新成果10日在国际著名学术期刊《自然·遗传》上发表。该研究是在国家自然科学基金委、科技部、中科院以及天津市科委多个重点基金资助下,由中国医学科学院血液学研究所教授程涛、竺晓凡和中国科学院北京基因组研究所研究员王前飞等率领的多个团队合作完成的。他们通过对一个混合谱系白血病(MLL)患者及其正常同卵双胞胎的血细胞进行全基因组测序,发现了罕见的功能性MLL-NRIP3致癌基因和H3K36三甲基化的组蛋白甲基转移酶SETD2的遗传突变。

程涛说,MLL白血病发生率占婴儿白血病的70%、急性髓系白血病的10%以上,带有MLL重排基因的病人预后差别较大。通常认为这与除MLL融合基因以外的变异基因有较大关系。该研究表明SETD2是白血病的新抑癌基因,而且SETD2-H3K36 me3通路的功能破坏是白血病发生发展的一种新的表观遗传机制。

程涛介绍,当前癌症研究的主要挑战之一就是多种致癌基因或机制如何协同导致细胞恶变。他们的发现将促进对白血病乃至其它癌症发病机制的认识,有助于临床药物开发。

原始出处:

Zhu X1, He F2, Zeng H1, Ling S2, Chen A3, Wang Y4, Yan X5, Wei W4, Pang Y4, Cheng H4, Hua C4, Zhang Y6, Yang X7, Lu X7, Cao L8, Hao L8, Dong L8, Zou W8, Wu J8, Li X7, Zheng S7, Yan J8, Zhou J8, Zhang L7, Mi S8, Wang X4, Zhang L4, Zou Y4, Chen Y4, Geng Z9, Wang J10, Zhou J9, Liu X11, Wang J4, Yuan W4, Huang G5, Cheng T4, Wang QF8.Identification of functional cooperative mutations of SETD2 in human acute leukemia.Nat Genet. 2014 Feb 9. doi: 10.1038/ng.2894. 【原文下载】

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    2014-07-17 liye789132251
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    2014-09-27 cy0324
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    2014-03-27 zutt
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