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Polymorphisms in the ABCB1 gene and effect on outcome and toxicity in childhood acute lymphoblastic leukemia
KTH, School of Biotechnology (BIO), Gene Technology. KTH, Centres, Science for Life Laboratory, SciLifeLab. Division of Drug Research, Department of Medical and Health Sciences, Linköpings Universitet, Linköping, Sweden.
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2015 (English)In: The Pharmacogenomics Journal, ISSN 1470-269X, E-ISSN 1473-1150, Vol. 15, no 4, 372-379 p.Article in journal (Refereed) Published
Abstract [en]

The membrane transporter P-glycoprotein, encoded by the ABCB1 gene, influences the pharmacokinetics of anti-cancer drugs. We hypothesized that variants of ABCB1 affect outcome and toxicity in childhood acute lymphoblastic leukemia (ALL). We studied 522 Danish children with ALL, 93% of all those eligible. Risk of relapse was increased 2.9-fold for patients with the 1199GA variant versus 1199GG (P = 0.001), and reduced 61% and 40%, respectively, for patients with the 3435CT or 3435TT variants versus 3435CC (overall P = 0.02). The degree of bone marrow toxicity during doxorubicin, vincristine and prednisolone induction therapy was more prominent in patients with 3435TT variant versus 3435CT/3435CC (P = 0.01/P < 0.0001). We observed more liver toxicity after high-dose methotrexate in patients with 3435CC variant versus 3435CT/TT ( P = 0.03). In conclusion, there is a statistically significant association between ABCB1 polymorphisms, efficacy and toxicity in the treatment of ALL, and ABCB1 1199G > A may be a new possible predictive marker for outcome in childhood ALL.

Place, publisher, year, edition, pages
2015. Vol. 15, no 4, 372-379 p.
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Genetics
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URN: urn:nbn:se:kth:diva-172707DOI: 10.1038/tpj.2014.81ISI: 000358448500012PubMedID: 25582575Scopus ID: 2-s2.0-84937815554OAI: oai:DiVA.org:kth-172707DiVA: diva2:850025
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Swedish Cancer SocietySwedish Research CouncilScience for Life Laboratory - a national resource center for high-throughput molecular bioscience
Note

QC 20150831

Available from: 2015-08-31 Created: 2015-08-27 Last updated: 2017-12-04Bibliographically approved

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