MTHFR gene polymorphisms and methotrexate toxicity in adult patients with hematological malignancies: a meta-analysis

作者:Zhao, Ming*; Liang, Liang; Ji, Liwei; Chen, Di; Zhang, Yatong; Zhu, Yuanchao; Ongaro, Alessia
来源:Pharmacogenomics, 2016, 17(9): 1005-1017.
DOI:10.2217/pgs-2016-0004

摘要

Background: MTHFR gene polymorphisms has been shown to be associated with methotrexate (MTX) toxicity in adult hematological malignancies; however, the results remain inconclusive. Materials & methods: To examine the role of common MTHFR variants in MTX toxicity prediction, we performed a meta-analysis via identifying relevant studies for quantitative data pooling. Results: Our results showed a significant association between MTHFR C677T polymorphism and increased risk of MTX-induced all-grade (grade 1-4) and severe (grade 3-4) hepatic and gastrointestinal toxicities in Caucasian independent of MTX dosage. MTHFR 677T allele increased risk of severe mucositis and all-grade hematological toxicity. MTHFR A1298C polymorphism was not significantly associated with hepatic and hematological toxicity, whereas perhaps having a protective effect on mucositis and gastrointestinal toxicity. Conclusion: MTHFR C677T polymorphism may be a good predictor for MTX toxicity in adult hematological malignancies.