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SNPs in genes coding for ROS metabolism and signalling in association with docetaxel clearance
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2010 (English)In: The Pharmacogenomics Journal, ISSN 1470-269X, E-ISSN 1473-1150, Vol. 10, no 6, 513-523 p.Article in journal (Refereed) Published
Abstract [en]

The dose of docetaxel is currently calculated based on body surface area and does not reflect the pharmacokinetic, metabolic potential or genetic background of the patients. The influence of genetic variation on the clearance of docetaxel was analysed in a two-stage analysis. In step one, 583 single-nucleotide polymorphisms (SNPs) in 203 genes were genotyped on samples from 24 patients with locally advanced non-small cell lung cancer. We found that many of the genes harbour several SNPs associated with clearance of docetaxel. Most notably these were four SNPs in EGF, three SNPs in PRDX4 and XPC, and two SNPs in GSTA4, TGFBR2, TNFAIP2, BCL2, DPYD and EGFR. The multiple SNPs per gene suggested the existence of common haplotypes associated with clearance. These were confirmed with detailed haplotype analysis. On the basis of analysis of variance (ANOVA), quantitative mutual information score (QMIS) and Kruskal-Wallis (KW) analysis SNPs significantly associated with clearance of docetaxel were confirmed for GSTA4, PRDX4, TGFBR2 and XPC and additional putative markers were found in CYP2C8, EPHX1, IGF2, IL1R2, MAPK7, NDUFB4, TGFBR3, TPMT (2 SNPs), (P<0.05 or borderline significant for all three methods, 14 SNPs in total). In step two, these 14 SNPs were genotyped in additional 9 samples and the results combined with the genotyping results from the first step. For 7 of the 14 SNPs, the results are still significant/borderline significant by all three methods: ANOVA, QMIS and KW analysis strengthening our hypothesis that they are associated with the clearance of docetaxel..

Place, publisher, year, edition, pages
2010. Vol. 10, no 6, 513-523 p.
Keyword [en]
SNPs, docetaxel, clearance, pharmacogenetics, cytochrome P450 system
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-130555DOI: 10.1038/tpj.2010.6ISI: 000284835600005PubMedID: 20157331OAI: oai:DiVA.org:uu-130555DiVA: diva2:349895
Available from: 2010-09-09 Created: 2010-09-09 Last updated: 2017-12-12Bibliographically approved

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Syvänen, Ann-Christine

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