Karyotype and age in acute myeloid leukemia. Are they linked?
Moorman, Anthony V., Roman, Eve, Willett, Eleanor V., Dovey, Gareth J., Cartwright, Raymond A. and Morgan, Gareth J. (2001) Karyotype and age in acute myeloid leukemia. Are they linked? Cancer Genetics and Cytogenetics, 126, (2), 155-161. (doi:10.1016/S0165-4608(00)00414-3).
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A novel hierarchical cytogenetic classification for acute myeloid leukemia (AML) has been developed. Patients with successful cytogenetics and a diagnosis of AML were categorized into four mutually exclusive karyotype groups: normal, translocation, deletion and trisomy. Patients with more than one chromosomal abnormality were classified using the hierarchy: established translocation>established deletion>established trisomy>non-established translocation>non-established deletion>non-established trisomy. A total of 593 AML patients from a large population-based case-control study of acute leukemia were classified according to their diagnostic karyotype. The four karyotype groups showed different age distributions. Overall the frequency of patients increased with age as did the frequency of patients with a deletion, trisomy or normal karyotype. Although the increase of patients with age was much sharper for patients with a deletion. In contrast, the distribution of patients with a translocation was roughly constant with age. We concluded that there was a link between karyotype and the age of the patient at diagnosis. Furthermore, two karyotype groups, translocations and deletions, may define disease entities with different etiologies. This novel cytogenetic classification will allow other studies to examine whether AML cases with very different types of chromosomal abnormality have the same etiology.
|Subjects:||R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)|
|Divisions:||University Structure - Pre August 2011 > School of Medicine > Cancer Sciences
|Date Deposited:||12 Apr 2006|
|Last Modified:||06 Aug 2015 02:27|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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