Chromosomal translocations involving the MLL gene:: Molecular mechanisms

被引:46
作者
Aplan, Peter D. [1 ]
机构
[1] NCI, Genet Branch,Ctr Canc Res, NIH, Natl Naval Med Ctr, Bethesda, MD 20889 USA
关键词
MLL; chromosomal translocation; infant leukemia; DNA topoisomerase II; non-homologous end joining;
D O I
10.1016/j.dnarep.2006.05.034
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
A wide array of recurrent, non-random chromosomal translocations are associated with hematologic malignancies; experimental models have clearly demonstrated that many of these translocations are causal events during malignant transformation. Tyanslocations involving the MLL gene are among the most common of these non-random translocations. Leukemias with MLL translocations have been the topic of intense interest because of the unusual, biphenotypic immunophenotype of these leukemias, because of the unique clinical presentation of some MLL translocations (infant leukemia and therapy-related leukemia), and because of the large number of different chromosomal loci that partner with MLL in these translocations. This review is focused on the potential mechanisms that lead to MLL translocations, and will discuss aberrant VDJ recombination, Alv.-mediated recombination, non-homologous end joining, as well as the effect of DNA topoisomerase II poisons and chromatin structure. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1265 / 1272
页数:8
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