Open Access

Distribution of uridine diphosphate glucuronosyltransferase 1A polymorphisms and their role in irinotecan‑induced toxicity in patients with cancer

  • Authors:
    • Yang Wang
    • Cuihua Yi
    • Yawei Wang
    • Hui Li
    • Bei Li
    • Dan Wang
    • Jintong Du
    • Lian Liu
    • Xiuwen Wang
  • View Affiliations

  • Published online on: September 14, 2017     https://doi.org/10.3892/ol.2017.6933
  • Pages: 5743-5752
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Uridine diphosphate glucuronosyltransferase 1A (UGT1A1), which affects irinotecan metabolism, has been associated with severe adverse reactions in patients with cancer treated with irinotecan. However, neither large‑scale analysis of the distribution of UGT1A1 polymorphisms, nor standardized assessment of how UGT1A1 polymorphisms affect irinotecan treatment has been performed in China. The aim of the present study was to investigate the distribution of UGT1A1 polymorphisms (*28 and *6) in 2,093 Chinese patients with cancer who were treated with irinotecan from more than 15 hospitals in Shandong, to examine how the coexistence of UGT1A1*6 and UGT1A1*28 alleles may be able to predict toxicities induced by irinotecan in 105 of the patients, and to search for other relevant risk factors. The distribution of the genotypes was as follows: TA6/TA6 (1,601, 76.5%), TA6/TA7 (463, 22.1%) and TA7/TA7 (29, 1.4%) for UGT1A1*28 (n=2,093); and G/G (286, 66.4%), G/A (124, 28.8%) and A/A (21, 4.9%) for UGT1A1*6 (n=431). The most frequent severe hematological toxicity was neutropenia, and the predominant non‑hematological toxicities were diarrhea and cholinergic syndrome. In toxicity comparisons, grade 3‑4 leukopenia and neutropenia were significantly higher in TA6/TA7 compared with TA6/TA6 (P<0.05). The UGT1A1*6 polymorphism was associated with a higher risk of severe diarrhea and total adverse drug reactions (P<0.05). Logistic regression showed that the UGT1A1*6 genotype was an independent predictor of severe diarrhea. These findings suggested that the UGT1A1*28 and UGT1A1*6 genotypes may be associated with irinotecan‑induced severe toxicity, and clarified the clinical importance of UGT1A1 polymorphisms, particularly UGT1A1*6, regarding irinotecan therapy in Chinese patients.
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November-2017
Volume 14 Issue 5

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Wang Y, Yi C, Wang Y, Li H, Li B, Wang D, Du J, Liu L and Wang X: Distribution of uridine diphosphate glucuronosyltransferase 1A polymorphisms and their role in irinotecan‑induced toxicity in patients with cancer. Oncol Lett 14: 5743-5752, 2017.
APA
Wang, Y., Yi, C., Wang, Y., Li, H., Li, B., Wang, D. ... Wang, X. (2017). Distribution of uridine diphosphate glucuronosyltransferase 1A polymorphisms and their role in irinotecan‑induced toxicity in patients with cancer. Oncology Letters, 14, 5743-5752. https://doi.org/10.3892/ol.2017.6933
MLA
Wang, Y., Yi, C., Wang, Y., Li, H., Li, B., Wang, D., Du, J., Liu, L., Wang, X."Distribution of uridine diphosphate glucuronosyltransferase 1A polymorphisms and their role in irinotecan‑induced toxicity in patients with cancer". Oncology Letters 14.5 (2017): 5743-5752.
Chicago
Wang, Y., Yi, C., Wang, Y., Li, H., Li, B., Wang, D., Du, J., Liu, L., Wang, X."Distribution of uridine diphosphate glucuronosyltransferase 1A polymorphisms and their role in irinotecan‑induced toxicity in patients with cancer". Oncology Letters 14, no. 5 (2017): 5743-5752. https://doi.org/10.3892/ol.2017.6933