PMID- 21872828 OWN - NLM STAT- MEDLINE DCOM- 20111021 LR - 20110829 IS - 2210-7762 (Print) VI - 204 IP - 7 DP - 2011 Jul TI - Absence of TCR loci chromosomal translocations in cutaneous T-cell lymphomas. PG - 405-9 LID - 10.1016/j.cancergen.2011.05.004 [doi] AB - Chromosomal aberrations involving T-cell receptor (TCR) gene loci have been described in several T-cell malignancies. In primary cutaneous T-cell lymphomas (CTCL), the frequency of these aberrations has not yet been well established. We analyzed TCR gene loci (TCRAD, TCRB, and TCRG) status in CTCLs by fluorescence in situ hybridization (FISH). Twenty-five patients with CTCLs were included in the study: 13 Sezary syndromes (SS), six tumoral stage mycosis fungoides (MFt), and six primary cutaneous anaplastic large cell lymphomas CD30(+) (cALCL-CD30(+)). FISH was performed with three break-apart probes flanking TCRAD (14q11), TCRB (7q34), and TCRG (7p14) loci in each case. TCR gene chromosomal rearrangements were not detected in any of the analyzed cases. Gains of TCRB and TCRG genes were observed in 23% (3 of 13) of SS and 50% (3 of 6) of MFt, reflecting the presence of trisomy and/or tetrasomy of chromosome 7 already detected by conventional cytogenetics and array comparative genetic hybridization techniques. TCR loci rearrangements are not frequent in CTCLs; however, we cannot exclude a pathogenic role in these malignancies. CI - Copyright (c) 2011 Elsevier Inc. All rights reserved. FAU - Salgado, Rocio AU - Salgado R AD - Laboratori de Citogenetica Molecular, Laboratori de Citologia Hematologica, Servei de Patologia, Hospital del Mar-Parc de Salut Mar, IMIM-Institut de Recerca de l'Hospital del Mar, Programa de Recerca en Cancer, GRETNHE, Barcelona, Spain. FAU - Gallardo, Fernando AU - Gallardo F FAU - Servitje, Octavio AU - Servitje O FAU - Estrach, Teresa AU - Estrach T FAU - Garcia-Muret, Maria Pilar AU - Garcia-Muret MP FAU - Romagosa, Vicente AU - Romagosa V FAU - Florensa, Lourdes AU - Florensa L FAU - Serrano, Sergi AU - Serrano S FAU - Salido, Marta AU - Salido M FAU - Sole, Francesc AU - Sole F FAU - Pujol, Ramon M AU - Pujol RM FAU - Espinet, Blanca AU - Espinet B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cancer Genet JT - Cancer genetics JID - 101539150 RN - 0 (Receptors, Antigen, T-Cell) RN - 0 (Receptors, Antigen, T-Cell, alpha-beta) RN - 0 (Receptors, Antigen, T-Cell, gamma-delta) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Chromosomes, Human, Pair 7/genetics MH - Female MH - *Genes, T-Cell Receptor MH - Genetic Loci MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Mycosis Fungoides/*genetics/metabolism MH - Receptors, Antigen, T-Cell/genetics/metabolism MH - Receptors, Antigen, T-Cell, alpha-beta/genetics MH - Receptors, Antigen, T-Cell, gamma-delta/genetics MH - Retrospective Studies MH - Sezary Syndrome/*genetics/pathology MH - Skin Neoplasms/*genetics/pathology MH - *Tetrasomy MH - *Translocation, Genetic EDAT- 2011/08/30 06:00 MHDA- 2011/10/22 06:00 CRDT- 2011/08/30 06:00 PHST- 2011/03/04 00:00 [received] PHST- 2011/05/05 00:00 [revised] PHST- 2011/05/11 00:00 [accepted] PHST- 2011/08/30 06:00 [entrez] PHST- 2011/08/30 06:00 [pubmed] PHST- 2011/10/22 06:00 [medline] AID - S2210-7762(11)00121-9 [pii] AID - 10.1016/j.cancergen.2011.05.004 [doi] PST - ppublish SO - Cancer Genet. 2011 Jul;204(7):405-9. doi: 10.1016/j.cancergen.2011.05.004.