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A new potential oncogenic mutation in the FERM domain of JAK2 in BCR-ABL1 negative and V617F negative chronic myeloproliferative neoplasms (CMPNs) revealed by a comprehensive screening of 17 tyrosine kinase coding genes
Authors: Aranaz, P. (Paula)
Ormazábal, C. (Cristina)
Hurtado, C. (Cristina)
Erquiaga, I. (Ignacio)
Calasanz, M.J. (María José)
García-Delgado, M. (Marina)
Novo, F.J. (Francisco Javier)
Vizmanos, J.L. (José Luis)
Issue Date: 1-May-2010
Publisher: Elsevier Inc.
Publisher version: http://bit.ly/LeQkre
ISSN: 0165-4608
Citation: Paula Aranaz, Cristina Ormazábal, Hurtado C, Erquiaga I, Calasanz MJ, Marina García-Delgado, et al. Original article: A new potential oncogenic mutation in the FERM domain of JAK2 in BCR/ABL1-negative and V617F-negative chronic myeloproliferative neoplasms revealed by a comprehensive screening of 17 tyrosine kinase coding genes. Cancer Genet Cytogenet. 2010;199:1-8.
Abstract
BCR/ABL1-negative chronic myeloproliferative neoplasms (CMPNs) are a heterogeneous group of clonal hematological malignancies. Over recent years, some genetic events in tyrosine kinase (TK) genes have been described as causal events of these diseases. To identify new genetic aberrations underlying these diseases, we used denaturing high performance liquid chromatography and fluorescence in situ hybridization (FISH) to analyze 17 genes from two receptor-TK families (III and IV) and from three cytoplasmic-TK families (Syk, Abl, and Jak) on samples from 44 BCR/ABL1-negative and JAK2(V617F)-negative CMPN patients with different clinical phenotypes. Although screening by FISH did not reveal novel chromosomal aberrations, several sequence changes were detected. None of them were frequent events, but we identified a new potential activating mutation in the FERM domain of JAK2(R340Q). None of the germline JAK2(V617F) single-nucleotide polymorphisms detected differed in distribution between patients and control subjects. In summary, data presented here show that these genes are not frequently mutated or rearranged in CMPNs, suggesting that molecular events causing these disorders must be located in other genes.
Permanent link: http://hdl.handle.net/10171/7308
Appears in Collections:DA - Ciencias - Genética - Artículos de revista

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