SEARCH:   Advanced

Blood, 15 April 2008, Vol. 111, No. 8, pp. 4329-4337. Prepublished online as a Blood First Edition Paper on February 13, 2008; DOI 10.1182/blood-2007-10-119230. This Article Full Text Full Text (PDF) Supplemental Tables and Figures All Versions of this Article: blood-2007-10-119230v1 111/8/4329    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 Google Scholar Articles by Lugthart, S. Articles by Delwel, R. PubMed PubMed Citation Articles by Lugthart, S. Articles by Delwel, R. Related Collections Oncogenes and Tumor Suppressors Clinical Trials and Observations Neoplasia Social Bookmarking                   What's this?  Previous Article  |  Table of Contents  |  Next Article  NEOPLASIA High EVI1 levels predict adverse outcome in acute myeloid leukemia: prevalence of EVI1 overexpression and chromosome 3q26 abnormalities underestimated Sanne Lugthart1, Ellen van Drunen2, Yvette van Norden3, Antoinette van Hoven1, Claudia A. J. Erpelinck1, Peter J. M. Valk1, H. Berna Beverloo2, Bob Löwenberg1, and Ruud Delwel1 Departments of1 Hematology, 2 Clinical Genetics, and 3 Trials and Statistics, Erasmus University Medical Center, Rotterdam, The Netherlands Inappropriate expression of EVI1 (ecotropic virus integration-1), in particular splice form EVI1-1D, through chromosome 3q26 lesions or other mechanisms has been implicated in the development of high-risk acute myeloid leukemia (AML). To validate the clinical relevance of EVI1-1D, as well as of the other EVI1 splice forms and the related MDS1/EVI1 (ME) gene, real-time quantitative polymerase chain reaction was performed in 534 untreated adults with de novo AML. EVI1-1D was highly expressed in 6% of cases (n = 32), whereas 7.8% were EVI1+ (n = 41) when all splice variants were taken into account. High EVI1 predicted a distinctly worse event-free survival (HR = 1.9; P = .002) and disease-free survival (HR = 2.1, P = .006) following multivariate analysis. Importantly, we distinguished a subset of EVI1+ cases that lacked expression of ME (EVI1+ME–; n = 17) from cases that were ME+ (EVI1+ME+; n = 24). The atypical EVI1+ME– expression pattern exhibited cytogenetically detectable chromosomal 3q26 breakpoints in 8 cases. Fluorescence in situ hybridization revealed 7 more EVI1+ME– cases that carried cryptic 3q26 breakpoints, which were not found in the EVI1+ME+ group. EVI1+ME– expression predicts an extremely poor prognosis distinguishable from the general EVI1+ AML patients (overall survival [OS]: P < .001 and event-free survival [EFS]: P = .002). We argue that EVI1/ME quantitative expression analysis should be implemented in the molecular diagnostic procedures of AML. CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: K. Dohner and H. Dohner Molecular characterization of acute myeloid leukemia Haematologica, July 1, 2008; 93(7): 976 - 982. [Full Text] [PDF] B. Lowenberg Diagnosis and Prognosis in Acute Myeloid Leukemia -- The Art of Distinction N. Engl. J. Med., May 1, 2008; 358(18): 1960 - 1962. [Full Text] [PDF]

	Blood Online is supported in part by Genentech BioOncology and Biogen Idec
	Copyright © 2008 by American Society of Hematology         Online ISSN: 1528-0020