AF10 regulates progressive H3K79 methylation and HOX gene expression in diverse AML subtypes.
AF10 regulates progressive H3K79 methylation and HOX gene expression in diverse AML subtypes.
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DOI:
10.1016/j.ccell.2014.10.009
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发表时间:
2014-12-08
期刊:
影响因子:
50.3
通讯作者:
Armstrong SA
中科院分区:
文献类型:
--
作者:
Deshpande AJ;Deshpande A;Sinha AU;Chen L;Chang J;Cihan A;Fazio M;Chen CW;Zhu N;Koche R;Dzhekieva L;Ibáñez G;Dias S;Banka D;Krivtsov A;Luo M;Roeder RG;Bradner JE;Bernt KM;Armstrong SA
Homeotic (HOX) genes are dysregulated in multiple malignancies including several AML subtypes. We demonstrate that H3K79 dimethylation (H3K79me2) is converted to mono-methylation (H3K79me1) at HOX loci as hematopoietic cells mature thus coinciding with a decrease in HOX gene expression. We show that H3K79 methyltransferase activity as well as H3K79me1 to H3K79me2 conversion is regulated by the DOT1L co-factor AF10. AF10 inactivation reverses leukemia-associated epigenetic profiles, precludes abnormal HOXA gene expression and impairs the transforming ability of MLL-AF9, MLL-AF6 or NUP98-NSD1 fusions – mechanistically distinct HOX-activating oncogenes. Furthermore, NUP98-NSD1 transformed cells are sensitive to small-molecule inhibition of DOT1L. Our findings demonstrate that pharmacological inhibition of the DOT1L/AF10 complex may provide therapeutic benefit in an array of malignancies with abnormal HOXA gene expression.
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影响因子:
16.8
作者:
Deshpande AJ;Bradner J;Armstrong SA
通讯作者:
Armstrong SA
影响因子:
3.7
作者:
Chamorro-Garcia R;Cervera M;Arredondo JJ
通讯作者:
Arredondo JJ
影响因子:
16
作者:
Cecere, Germano;Hoersch, Sebastian;Jensen, Morten B.;Dixit, Shiv;Grishok, Alla
通讯作者:
Grishok, Alla
影响因子:
20.3
作者:
Martinez-Garcia, Eva;Popovic, Relja;Licht, Jonathan D.
通讯作者:
Licht, Jonathan D.
DOI:
10.1073/pnas.93.10.4804
发表时间:
1996-05-14
影响因子:
11.1
作者:
Dreyling, MH;MartinezCliment, JA;Bohlander, SK
通讯作者:
Bohlander, SK