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http://purl.uniprot.org/citations/12760263http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/12760263http://www.w3.org/2000/01/rdf-schema#comment"

Background

The t (8;21) (q22;q22), which produces the fusion gene AML1/ETO, is associated with relatively good prognosis and, in particular, with a good response to cytosine arabinoside. Analysis of t (8;21) positive leukemic blasts has shown characteristic morphological and immunological features. We performed this study to investigate the incidence of AML1/ETO rearrangement in adult acute myelogenous leukemia (AML), especially in M2 subtype, to make a comparison of clinical, morphological and immunophenotypic characteristics between AML1/ETO rearrangement positive and negative group in patients with AML and to analyze the correlation with other biological parameters.

Methods

From May 1995 to Sept. 2000, fifty-nine patients with AML, including twenty-nine AML-M2, were studied. RNAs were extracted from leukemic cells and reverse transcriptase mediated polymerase chain reaction (RT-PCR) for AML1/ETO fusion transcript was done. Chromosome study, immunophenotypic and clinical characteristics were analyzed and statistical analysis was done.

Results

The incidence of AML1/ETO fusion transcripts was 22.0% in AML and 44.8% in AML-M2. The morphologic finding of bone marrow in AML-M2 showed higher incidence of Auer rods, large blast with prominent golgi and abnormal granules in AML1/ETO positive patients. There was no significant difference of immunophenotype. AML patients with AML1/ETO had a tendency of higher complete remission rate (81.8% vs 56.6%, p = 0.13). The overall survival (median; 82.2 weeks vs 34.4 weeks, p = 0.02) and progression free survival (median; 50.9 weeks vs 20.4 weeks, p = 0.02) of AML1/ETO positive group were longer than those of the negative group in AML. AML-M2 patients with AML1/ETO rearrangement had also a tendency of longer overall survival and progression free survival, although there was no significant difference between both groups.

Conclusion

Our data suggest that AML1/ETO rearrangement is detected frequently in AML, especially M2, and is a favorable prognostic factor. Thus, molecular diagnostic approaches should be used routinely to identify patients with this gentic subtype of AML."xsd:string
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http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Lee J.H."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Seo Y.H."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Ahn J.Y."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Park P.W."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Bang S.M."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Cho E.K."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Shin D.B."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/author"Yoo S.M."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/date"2003"xsd:gYear
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/name"Korean J Intern Med"xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/pages"13-20"xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/title"Prognostic value of AML 1/ETO fusion transcripts in patients with acute myelogenous leukemia."xsd:string
http://purl.uniprot.org/citations/12760263http://purl.uniprot.org/core/volume"18"xsd:string
http://purl.uniprot.org/citations/12760263http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/12760263
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