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This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted 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 Raimondi, S. C. Articles by Williams, D. L. Search for Related Content PubMed PubMed Citation Articles by Raimondi, S. C. Articles by Williams, D. L. Social Bookmarking                   What's this?  Previous Article  |  Table of Contents  |  Next Article  7q32-q36 translocations in childhood T cell leukemia: cytogenetic evidence for involvement of the T cell receptor beta-chain gene SC Raimondi, CH Pui, FG Behm and DL Williams Blast cell chromosomal rearrangements involving the long arm of chromosome 7 were identified in eight of 197 cases of childhood acute lymphoblastic leukemia (ALL). Breakpoints were variable but tended to cluster in either the proximal or the terminal 7q region, depending on the immunophenotype of the cells. The 7q32-q36 region, the locus of the T cell receptor beta-chain gene, was the site of breakpoints in four of 31 cases of T cell ALL but was not involved in any of the 166 cases originating from B cell precursors (P less than .0004). In three of the four T cell cases it was possible to identify the chromosomal segment that had been translocated to the 7q32-q36 region: 1p32, 2p21, and 6p21. The 1p32 and 6p21 bands are particularly interesting, as they contain the sites of two known protooncogenes, c-L-myc and hpim, respectively. Our findings suggest that the locus of the beta-chain gene of the T cell receptor is a preferential site for certain chromosomal rearrangements in leukemic T lymphoblasts, analogous to the T cell receptor alpha-chain gene on human chromosome 14. Translocation of proto-oncogenes to a site near the beta-chain regulatory sequences provides a potential mechanism for oncogene activation. Volume 69, Issue 1, pp. 131-134, 01/01/1987 Copyright © 1987 by The American Society of Hematology CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: F. M. Uckun, M. G. Sensel, L. Sun, P. G. Steinherz, M. E. Trigg, N. A. Heerema, H. N. Sather, G. H. Reaman, and P. S. Gaynon Biology and Treatment of Childhood T-Lineage Acute Lymphoblastic Leukemia Blood, February 1, 1998; 91(3): 735 - 746. [Full Text] [PDF]

	Copyright © 1987 by American Society of Hematology         Online ISSN: 1528-0020