Prognostic role of glutathione S-transferase polymorphisms in acute myeloid leukemia.

Prognostic role of glutathione S-transferase polymorphisms in acute myeloid leukemia. Research Abstract Details 

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Prognostic role of glutathione S-transferase polymorphisms in acute myeloid leukemia. Abstract Text:

Glutathione S-transferases (GSTs) are phase II detoxification enzymes involved in the metabolism of carcinogens and anticancer drugs, known also to interact with kinase complexes during oxidative or chemical stress-induced apoptosis. We were interested whether their polymorphic variants may account for differences in outcome of patients with acute myeloid leukemia (AML) following chemotherapy. We studied the prognostic role of polymorphisms in three GST genes (GSTP1/M1/T1) in a large patient cohort of the German Austrian Acute Myeloid Leukemia Study Group, treated according to prospective multicenter clinical trials (AML HD98A: 254 patients; AML HD98-B: 100 patients), with a median follow-up of 46 months. Looking at short-term adverse drug reactions, homozygous carriers of the GSTP1*105 Val allele had a faster neutrophil and platelet recovery (P=0.002 and 0.02, respectively) and a reduced need of red cell and platelet transfusions (P=0.01 and 0.03, respectively). Response to induction chemotherapy did not vary according to GST polymorphisms. Multivariable Cox regression models revealed a significant better relapse-free (RFS) and overall survival for the GSTP1(*)105 Val (P=0.003 and 0.03, respectively), whereas GSTT1 and GSTM1 genotypes had no significant impact. The favorable impact of GSTP1(*)105 Val on RFS seems to be restricted to the subgroup of patients exhibiting a normal karyotype.Leukemia (2008) 22, 1685-1691; doi:10.1038/leu.2008.169; published online 26 June 2008.

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Prognostic role of glutathione S-transferase polymorphisms in acute myeloid leukemia. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Leukemia : official journal of the Leukemia Societ

VOLUME: 22

Page Numbers: 1685-91

Journal Abbreviation: Leukemia

ISSN: 1476-5551

DAY: 26

MONTH: 06

YEAR: 2008

Prognostic role of glutathione S-transferase polymorphisms in acute myeloid leukemia. Information

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LANGUAGE: eng

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AFFILIATION: 1Istituto di Ematologia, Universita' Cattolica del Sacro Cuore, Rome, Italy.

Country: England

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MEDLINETA: Leukemia

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