Ontology type: schema:ScholarlyArticle Open Access: True
2001-10-01
AUTHORSM Renedo, B Martinez-Delgado, E Arranz, MJ Garcia, M Urioste, A Martinez-Ramirez, C Rivas, JC Cigudosa, J Benitez
ABSTRACTT cell non-Hodgkin's lymphomas are a heterogeneous group of lymphomas with poor prognosis, and whose genetic alterations are not well understood. Comparative genomic hybridization (CGH) is a technique that allows the identification of DNA imbalances without cytogenetic studies. We have studied 37 samples from 29 T cell non-Hodgkin's lymphomas (25 peripheral and four lymphoblastic lymphomas) by CGH in order to detect DNA sequence copy number changes of putative importance in the biology and prognosis of these neoplasms. We detected abnormal CGH profiles in 16/27 (59%) of samples at diagnosis, a ratio that increased to 66% (23/37) when we included the relapsed samples. The most common recurrent changes were gains related to the X chromosome, either the whole chromosome or partially the Xq26–27 bands (19%). Other recurrent changes included gains of bands 9q34, gains of chromosomes 17, 19, and 20, and complete or partial deletions of chromosome 13 (10%). Cancer-related genes located at Xq26–28 region were analyzed by Southern blot and fluorescence in situ hybridization (FISH). Low level amplification of some of these genes was detected by this technique confirming the results obtained by CGH in this region. The detection of abnormal CGH profiles in these T cell lymphomas could have clinical implications. Patients with abnormal CGH profiles showed significant associations with advanced stage of disease, overexpression of P53, and higher proliferative index. More... »
PAGES1627-1632
http://scigraph.springernature.com/pub.10.1038/sj.leu.2402248
DOIhttp://dx.doi.org/10.1038/sj.leu.2402248
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/11587222
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