Mutations in the UGT1A1 gene have been implicated in Gilbert syndrome, which shows mild hyperbilirubinemia, and a more aggressive childhood subtype, Crigler–Najjar syndrome. To date, more than 100 variants have been found in the UGT1A1 gene. Among them, UGT1A1*28 and UGT1A1*6 have been reported to be associated with severe toxicities in patients treated with irinotecan-based chemotherapy by increasing the dose of SN-38 (7-ethyl- 10-hydroxycamptothecin), an active form of irinotecan. Many association studies and metaanalyses have demonstrated the contribution of UGT1A1*28 and UGT1A1*6 polymorphisms to the toxicities caused by irinotecan-based therapy. The aim of this review was to evaluate the impact of these variants upon the toxicities and the efficacy of irinotecan-based chemotherapy.
CITATION STYLE
Takano, M., & Sugiyama, T. (2017, February 28). UGTIAI polymorphisms in cancer: Impact on irinotecan treatment. Pharmacogenomics and Personalized Medicine. Dove Medical Press Ltd. https://doi.org/10.2147/PGPM.S108656
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