Deletion of the RNA-binding proteins ZFP36L1 and ZFP36L2 leads to perturbed thymic development and T lymphoblastic leukemia

被引:170
作者
Hodson, Daniel J. [1 ]
Janas, Michelle L. [1 ]
Galloway, Alison [1 ]
Bell, Sarah E. [1 ]
Andrews, Simon [2 ]
Li, Cheuk M. [1 ]
Pannell, Richard [3 ]
Siebel, Christian W. [4 ]
MacDonald, H. Robson [5 ]
De Keersmaecker, Kim [6 ]
Ferrando, Adolfo A. [6 ,7 ,8 ]
Grutz, Gerald [9 ,10 ]
Turner, Martin [1 ]
机构
[1] Babraham Inst, Lab Lymphocyte Signalling & Dev, Cambridge, England
[2] Babraham Inst, Bioinformat Grp, Cambridge, England
[3] MRC, Mol Biol Lab, Cambridge CB2 2QH, England
[4] Genentech Inc, Dept Mol Biol, San Francisco, CA 94080 USA
[5] Univ Lausanne, Ludwig Inst Canc Res, Lausanne Branch, CH-1066 Epalinges, Switzerland
[6] Columbia Univ, Med Ctr, Inst Canc Genet, New York, NY USA
[7] Columbia Univ, Dept Pathol, Med Ctr, New York, NY USA
[8] Columbia Univ, Dept Pediat, Med Ctr, New York, NY 10027 USA
[9] Charite, Inst Med Immunol, D-13353 Berlin, Germany
[10] GKSS, Ctr Biomat Dev, Polymer Res Inst, Teltow, Germany
基金
英国医学研究理事会; 英国生物技术与生命科学研究理事会; 美国国家卫生研究院;
关键词
AU-RICH ELEMENT; PRE-TCR SIGNALS; THYMOCYTE DIFFERENTIATION; CELL DEVELOPMENT; BETA-SELECTION; MESSENGER-RNAS; KINASE-B; NOTCH; TRISTETRAPROLIN; MICE;
D O I
10.1038/ni.1901
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
ZFP36L1 and ZFP36L2 are RNA-binding proteins (RBPs) that interact with AU-rich elements in the 3' untranslated region of mRNA, which leads to mRNA degradation and translational repression. Here we show that mice that lacked ZFP36L1 and ZFP36L2 during thymopoiesis developed a T cell acute lymphoblastic leukemia (T-ALL) dependent on the oncogenic transcription factor Notch1. Before the onset of T-ALL, thymic development was perturbed, with accumulation of cells that had passed through the beta-selection checkpoint without first expressing the T cell antigen receptor beta-chain (TCR beta). Notch1 expression was higher in untransformed thymocytes in the absence of ZFP36L1 and ZFP36L2. Both RBPs interacted with evolutionarily conserved AU-rich elements in the 3' untranslated region of Notch1 and suppressed its expression. Our data establish a role for ZFP36L1 and ZFP36L2 during thymocyte development and in the prevention of malignant transformation.
引用
收藏
页码:717 / U84
页数:9
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