Ring chromosome 8 and translocation t(8;21) in a patient with acute myeloblastic leukemia |
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Authors: | Berger Roland Busson Maryvonne |
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Institution: | Inserm U 434 and SD 401 No. 434 CNRS, Institut de Génétique Moléculaire, 27, rue Juliette Dodu, 75010 Paris, France. berger@cephb.fr |
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Abstract: | Recurrent translocation t(8;21)(q22;q22) acute myeloid leukemia (AML) is often associated with secondary chromosome changes of which the clinical significance is not clear since they do not seem to impair the prognosis. Uncommon chromosome changes may lead to the identification of leukemogenetic factors associated with t(8;21) since the AML1/RUNX1-ETO fusion gene resulting from the translocation is thought to be unable alone to induce leukemia. We here report a patient with AML, t(8;21) and ring chromosome 8 resulting in partial chromosome 8 deletion. Another patient with partial 8q deletion has been previously reported. It is suggested that more attention be paid to the genes located in distal 8q in relation to leukemogenesis. |
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Keywords: | AML t(8 21) ring chromosome |
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