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Blood, 15 December 2006, Vol. 108, No. 13, pp. 4198-4201. Prepublished online as a Blood First Edition Paper on August 22, 2006; DOI 10.1182/blood-2006-07-032953. This Article Full Text Full Text (PDF) Supplemental Tables and Figures All Versions of this Article: blood-2006-07-032953v1 108/13/4198    most recent Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Rights and Permissions Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Su, X.-Y. Articles by Penard-Lacronique, V. Search for Related Content PubMed PubMed Citation Articles by Su, X.-Y. Articles by Penard-Lacronique, V. Related Collections Neoplasia Gene Expression Social Bookmarking                   What's this?  Previous Article  |  Table of Contents  |  Next Article  NEOPLASIA Brief report HOX11L2/TLX3 is transcriptionally activated through T-cell regulatory elements downstream of BCL11B as a result of the t(5;14)(q35;q32) Xin-Ying Su, Véronique Della-Valle, Isabelle Andre-Schmutz, Claudie Lemercier, Isabelle Radford-Weiss, Paola Ballerini, Michel Lessard, Marina Lafage-Pochitaloff, Francine Mugneret, Roland Berger, Serge P. Romana, Olivier A. Bernard, and Virginie Penard-Lacronique From the Institut National de la Santé et de la Recherche Médicale (INSERM), E0210, Paris, France; University René Descartes, Paris, France; INSERM, U768, Paris, France; INSERM, U548, Grenoble, France; CEA-DRDC-laboratoire "Immunochimie," Grenoble, France; Assistance Publique–Hôpitaux de Paris (AH-HP), Laboratoire de Cytogénétique, Hop Necker-Enfants Malades, Paris, France; AP-HP, Service d'Hematologie Biologique, Hop Trousseau, Paris, France; Laboratoire d'Hématologie, Hop de Hautepierre, Strasbourg, France; Laboratoire de Cytogénétique, Institut Paoli-Calmettes, Marseille, France; Université de la Méditerranée, Marseille, France; and Laboratoire de cytogénétique, CHU de Dijon, Dijon, France. The t(5;14)(q35;q32) chromosomal translocation is specifically observed in up to 20% of childhood T-cell acute lymphoblastic leukemia (T-ALL). It affects the BCL11B/CTIP2 locus on chromosome 14 and the RANBP17-TLX3/HOX11L2 region on chromosome 5. It leads to ectopic activation of TLX3/HOX11L2. To investigate the reasons of the association between t(5;14) and T-ALL, we isolated the translocation breakpoints in 8 t(5;14) patients. Sequence analyses did not involve recombinase activity in the genesis of the translocation. We used DNAse1 hypersensitive experiments to locate transcriptional regulatory elements downstream of BCL11B. By transient transfection experiments, 2 of the 6 regions demonstrated cis-activation properties in T cells and were also effective on the TLX3 promoter. Our data indicate that the basis of the specific association between t(5;14) and T-ALL lies on the juxtaposition of TLX3 to long-range cis-activating regions active during T-cell differentiation. CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: X. Su, V. Della-Valle, E. Delabesse, Z. Azgui, R. Berger, H. Merle-Beral, O. A Bernard, and F. Nguyen-Khac Transcriptional activation of the cardiac homeobox gene CSX1/NKX2-5 in a B-cell chronic lymphoproliferative disorder Haematologica, July 1, 2008; 93(7): 1081 - 1085. [Abstract] [Full Text] [PDF] C. C. Tydell, E.-S. David-Fung, J. E. Moore, L. Rowen, T. Taghon, and E. V. Rothenberg Molecular Dissection of Prethymic Progenitor Entry into the T Lymphocyte Developmental Pathway J. Immunol., July 1, 2007; 179(1): 421 - 438. [Abstract] [Full Text] [PDF]

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