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ABCB1 polymorphism as prognostic factor in breast cancer patients treated with docetaxel and doxorubicin neoadjuvant chemotherapy

Cited 56 time in Web of Science Cited 68 time in Scopus
Authors

Kim, Hee-Jun; Im, Seock-Ah; Keam, Bhumsuk; Ham, Hye Seon; Lee, Kyung Hun; Kim, Tae Yong; Kim, Yu Jung; Oh, Do-Youn; Kim, Jee Hyun; Han, Wonshik; Jang, In-Jin; Kim, Tae-You; Park, In Ae; Noh, Dong Young

Issue Date
2015-01
Publisher
Oxford University Press
Citation
Cancer Science, Vol.106 No.1, pp.86-93
Abstract
Expression of the adenosine triphosphate-binding cassette B1 (ABCB1) transporter and P-glycoprotein are associated with resistance to anticancer drugs. The purpose of this study was to investigate the role of single nucleotide polymorphism in the ABCB1 and CYP3A genes in breast cancer patients who were treated with neoadjuvant chemotherapy. Stage II/III breast cancer patients were treated with three cycles of neoadjuvant, after which the patients received curative surgery and adjuvant chemotherapy. The polymorphisms of ABCB1 and CYP3A were genotyped. The correlation of polymorphism of ABCB1, CYP3A, and clinical outcomes was analyzed. Among the 216 patients, ABCB1 3435TT genotype had a longer overall survival (OS). than CC/CT. Multivariate analyses demonstrated that good PS, invasive ductal carcinoma, non-triple negative phenotype and initial operable stage were significantly associated with a lower death risk. ABCB1 3435TT genotype had a higher AUC than CC/CT for docetaxel. These higher AUCs in the C3435TT was associated with increased toxicities of neutropenia and diarrhea. This study showed that the genetic polymorphism of ABCB1 C3435T might be associated with a longer OS. Our results also suggest that the prediction of docetaxel toxicity might be possible for C3435T polymorphism. This study results provides valuable information on individualized therapy according to genotypes.
ISSN
1347-9032
URI
https://hdl.handle.net/10371/177271
DOI
https://doi.org/10.1111/cas.12560
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  • Department of Medicine
Research Area Clinical Medicine

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