A novel role for Lef-1, a central transcription mediator of Wnt signaling, in leukemogenesis.
A novel role for Lef-1, a central transcription mediator of Wnt signaling, in leukemogenesis.
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LEF-1的新作用,LEF-1是Wnt信号传导的中央转录介质,在白血病发生中。
DOI:
10.1084/jem.20071875
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发表时间:
2008-03-17
影响因子:
15.3
通讯作者:
Buskel, Christian
中科院分区:
文献类型:
--
作者:
Petropoulos, Konstantin;Arseni, Natalia;Schessl, Christina;Stadler, Christiane R.;Rawat, Vijay P. S.;Deshpande, Aniruddha J.;Heilmeier, Bernhard;Hiddemann, Wolfgang;Quintanilla-Martinez, Leticia;Bohlander, Stefan K.;Feuring-Buske, Michaela;Buskel, Christian
Canonical Wnt signaling is critically involved in normal hematopoietic development and the self-renewal process of hematopoietic stem cells (HSCs). Deregulation of this pathway has been linked to a large variety of cancers, including different subtypes of leukemia. Lef-1 is a major transcription factor of this pathway and plays a pivotal role in lymphoid differentiation as well as in granulopoiesis. Here, we demonstrate Lef-1 expression in murine HSCs as well as its expression in human leukemia. Mice transplanted with bone marrow retrovirally transduced to express Lef-1 or a constitutive active Lef-1 mutant showed a severe disturbance of normal hematopoietic differentiation and finally developed B lymphoblastic and acute myeloid leukemia (AML). Lef-1–induced AMLs were characterized by immunoglobulin (Ig) DH-JH rearrangements and a promiscuous expression of lymphoid and myeloid regulatory factors. Furthermore, single cell experiments and limiting dilution transplantation assays demonstrated that Lef-1–induced AML was propagated by a leukemic stem cell with lymphoid characteristics displaying Ig DH-JH rearrangements and a B220+ myeloid marker− immunophenotype. These data indicate a thus far unknown role of Lef-1 in the biology of acute leukemia, pointing to the necessity of balanced Lef-1 expression for an ordered hematopoietic development.
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影响因子:
5.3
作者:
Ross, DA;Kadesch, T
通讯作者:
Kadesch, T
影响因子:
64.8
作者:
Reya, T;Duncan, AW;Weissman, IL
通讯作者:
Weissman, IL
影响因子:
56.9
作者:
He, TC;Sparks, AB;Kinzler, KW
通讯作者:
Kinzler, KW
影响因子:
64.8
作者:
Reya, T;Clevers, H
通讯作者:
Clevers, H
影响因子:
30.5
作者:
Kirstetter, Peggy;Anderson, Kristina;Nerlov, Claus
通讯作者:
Nerlov, Claus