1. Influence of MTHFR C677T Polymorphism on High-Dose Methotrexate-Related Toxicity in Patients With Primary Central Nervous System Diffuse Large B-Cell Lymphoma
- Author
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Yunxiu Zhang, Yixian Guo, Ronghua Hu, Wuhan Hui, Li Su, Xiaoli Chang, Hong Zhao, and Wan-Ling Sun
- Subjects
Adult ,Male ,0301 basic medicine ,Cancer Research ,medicine.medical_specialty ,Polymorphism, Single Nucleotide ,Gastroenterology ,Nephrotoxicity ,Central Nervous System Neoplasms ,03 medical and health sciences ,0302 clinical medicine ,immune system diseases ,Internal medicine ,Genotype ,medicine ,Humans ,Genetic Predisposition to Disease ,Prospective Studies ,Methylenetetrahydrofolate Reductase (NADPH2) ,Aged ,Dose-Response Relationship, Drug ,biology ,business.industry ,Homozygote ,Hematology ,Odds ratio ,Acute Kidney Injury ,Middle Aged ,medicine.disease ,Lymphoma ,Methotrexate ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,Methylenetetrahydrofolate reductase ,Toxicity ,biology.protein ,Lymphoma, Large B-Cell, Diffuse ,Chemical and Drug Induced Liver Injury ,business ,Diffuse large B-cell lymphoma ,medicine.drug - Abstract
BACKGROUND Primary central nervous system diffuse large B-cell lymphoma (PCNS-DLBCL) is a relatively rare and aggressive neoplasm. High-dose methotrexate (HD-MTX) is an effective regimen for the treatment of PCNS-DLBCL, but MTX-related toxicity remains a problem. The aim of this analysis study was to investigate the influence of the methylenetetrahydrofolate reductase (MTHFR) gene C677T polymorphism on HD-MTX-related toxicity in patients with PCNS-DLBCL. MATERIAL/METHODS A prospective, observational study was conducted to analyze 148 MTX courses in 32 patients with PCNS-DLBCL. RESULTS The delayed MTX clearance was observed in 53 cycles (35.8%). The patients carrying the homozygous variant genotype had a higher risk of developing nephrotoxicity than those carrying the wild-type genotype (odds ratio [OR] 13.08; 95% confidence interval [CI], 1.65-103.86; P = .002) or heterozygous variant genotype (OR 8.43; 95% CI, 2.31-30.70; P < .001). Significant differences were observed in hepatotoxicity (OR 9.33; 95% CI, 2.54-34.27; P < .001) and hematologic toxicity (OR 3.09; 95% CI, 1.18-8.07; P = .024) in addition to nephrotoxicity between the homozygous variant genotype and the wild-type genotype. CONCLUSION The homozygous mutation of C to T at nucleotide 677 increases the risk on HD-MTX-related toxicity. The MTHFR C677T polymorphism can be used to predict HD-MTX-related toxicity for patients with PCNS-DLBCL.
- Published
- 2021