Aberrant activation of the GIMAP enhancer by oncogenic transcription factors in T-cell acute lymphoblastic leukemia.
Aberrant activation of the GIMAP enhancer by oncogenic transcription factors in T-cell acute lymphoblastic leukemia.
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DOI:
10.1038/leu.2016.392
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发表时间:
2017-08
期刊:
影响因子:
11.4
通讯作者:
Sanda T
中科院分区:
文献类型:
--
作者:
Liau WS;Tan SH;Ngoc PCT;Wang CQ;Tergaonkar V;Feng H;Gong Z;Osato M;Look AT;Sanda T
The transcription factor TAL1/SCL is one of the most prevalent oncogenes in T-cell acute lymphoblastic leukemia (T-ALL), a malignant disorder resulting from leukemic transformation of thymus T-cell precursors. TAL1 is normally expressed in hematopoietic stem cells (HSCs) but is silenced in immature thymocytes. We hypothesize that TAL1 contributes to leukemogenesis by activating genes that are normally repressed in immature thymocytes. Herein, we identified a novel TAL1-regulated super-enhancer controlling the GIMAP locus, which resides within an insulated chromosomal locus in T-ALL cells. The GIMAP genes are expressed in HSCs and mature T-cells but are downregulated during the immature stage of thymocyte differentiation. The GIMAP enhancer is activated by TAL1, RUNX1 and GATA3 in human T-ALL cells but is repressed by E-proteins. Overexpression of human GIMAP genes in immature thymocytes alone does not induce tumorigenesis but accelerates leukemia development in zebrafish. Our results demonstrate that aberrant activation of the GIMAP enhancer contributes to T-cell leukemogenesis.
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影响因子:
64.8
作者:
Kwiatkowski, Nicholas;Zhang, Tinghu;Rahl, Peter B.;Abraham, Brian J.;Reddy, Jessica;Ficarro, Scott B.;Dastur, Anahita;Amzallag, Arnaud;Ramaswamy, Sridhar;Tesar, Bethany;Jenkins, Catherine E.;Hannett, Nancy M.;McMillin, Douglas;Sanda, Takaomi;Sim, Taebo;Kim, Nam Doo;Look, Thomas;Mitsiades, Constantine S.;Weng, Andrew P.;Brown, Jennifer R.;Benes, Cyril H.;Marto, Jarrod A.;Young, Richard A.;Gray, Nathanael S.
通讯作者:
Gray, Nathanael S.
DOI:
10.4049/jimmunol.0903164
发表时间:
2010-04-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Barnes MJ;Aksoylar H;Krebs P;Bourdeau T;Arnold CN;Xia Y;Khovananth K;Engel I;Sovath S;Lampe K;Laws E;Saunders A;Butcher GW;Kronenberg M;Steinbrecher K;Hildeman D;Grimes HL;Beutler B;Hoebe K
通讯作者:
Hoebe K
影响因子:
30.5
作者:
通讯作者:
--
影响因子:
64.5
作者:
Hnisz D;Abraham BJ;Lee TI;Lau A;Saint-André V;Sigova AA;Hoke HA;Young RA
通讯作者:
Young RA
影响因子:
64.5
作者:
Dowen JM;Fan ZP;Hnisz D;Ren G;Abraham BJ;Zhang LN;Weintraub AS;Schujiers J;Lee TI;Zhao K;Young RA
通讯作者:
Young RA