TITLE

Apoptosis-Related Gene Expression Profile in Chronic Myeloid Leukemia Patients after Imatinib Mesylate and Dasatinib Therapy

AUTHOR(S)
Ferreira, aline Fernanda; de Oliveira, Gislane L.V.; Tognon, Raquel; Collassanti, Maria Dulce S.; Zanichelli, Maria aparecida; Hamerschlak, Nelson; de Souza, ana Maria; Covas, Dimas Tadeu; Kashima, Simone; de Castro, Fabiola attie
PUB. DATE
May 2015
SOURCE
Acta Haematologica;May2015, Vol. 133 Issue 4, p354
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background/Aims: We investigated the effects of tyrosine kinase inhibitors (TKIs) on the expression of apoptosis-related genes (BCL-2 and death receptor family members) in chronic myeloid leukemia (CML) patients. Methods: Peripheral blood mononuclear cells from 32 healthy subjects and 26 CML patients were evaluated before and after treatment with imatinib mesylate (IM) and dasatinib (DAS) by quantitative PCR. Results: Anti-apoptotic genes (c-FLIP and MCL-1) were overexpressed and the pro-apoptotic BIK was reduced in CML patients. Expression of BMF, A1, c-FLIP, MCL-1, CIAP-2 and CIAP-1 was modulated by DAS. In IM-resistant patients, expression of A1, c-FLIP, CIAP-1 and MCL-1 was upregulated, and BCL-2, CIAP-2, BAK, BAX, BIK and FASL expression was downregulated. Conclusion: Taken together, our results point out that, in CML, DAS interferes with the apoptotic machinery regulation. In addition, the data suggest that apoptosis-related gene expression profiles are associated with primary resistance to IM. © 2015 S. Karger AG, Basel
ACCESSION #
102814887

 

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