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Embryonic Structures Commons

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2013

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Full-Text Articles in Embryonic Structures

The Dn2 Myeloid-T (Dn2mt) Progenitor Is A Target Cell For Leukemic Transformation By The Tlx1 Oncogene, Lynnsey A. Zweier-Renn, Irene Riz, Teresa S. Hawley, Robert G. Hawley Jan 2013

The Dn2 Myeloid-T (Dn2mt) Progenitor Is A Target Cell For Leukemic Transformation By The Tlx1 Oncogene, Lynnsey A. Zweier-Renn, Irene Riz, Teresa S. Hawley, Robert G. Hawley

Anatomy and Regenerative Biology Faculty Publications

Introduction: Inappropriate activation of the TLX1 (T-cell leukemia homeobox 1) gene by chromosomal translocation is a recurrent event in human T-cell Acute Lymphoblastic Leukemia (T-ALL). Ectopic expression of TLX1 in murine bone marrow progenitor cells using a conventional retroviral vector efficiently yields immortalized cell lines and induces T-ALL-like tumors in mice after long latency.

Methods: To eliminate a potential contribution of retroviral insertional mutagenesis to TLX1 immortalizing and transforming function, we incorporated the TLX1 gene into an insulated self-inactivating retroviral vector.

Results: Retrovirally transduced TLX1-expressing murine bone marrow progenitor cells had a growth/survival advantage and readily gave rise to immortalized …