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·药物与临床·
MTRR 基因多态性与颅内肿瘤患儿甲氨蝶呤血药浓度及不良反
应的相关性研究
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赵丹琪 1, 2* ,李 苗 ,时正媛 ,续茜桥 ,王淑梅 (1. 首都医科大学附属北京世纪坛医院药学部,北京
100038;2.首都医科大学药学院临床药学系,北京 100069;3.首都医科大学附属北京世纪坛医院儿科,北京
100038;4.临床合理用药生物特征谱学评价北京市重点实验室,北京 100038)
中图分类号 R969 文献标志码 A 文章编号 1001-0408(2024)21-2646-06
DOI 10.6039/j.issn.1001-0408.2024.21.12
摘 要 目的 考察颅内肿瘤患儿甲硫氨酸合成酶还原酶(MTRR)rs10380 C>T基因多态性对甲氨蝶呤(MTX)血药浓度、不良反
应和预后的影响。方法 收集颅内肿瘤患儿的外周血,提取基因组 DNA,用基质辅助激光解吸电离-飞行时间质谱法分析 MTRR
rs10380 C>T基因型,分析MTRR rs10380 C>T基因多态性与MTX血药浓度和剂量之间的比值(C/D比值)、不良反应、肿瘤复发
和转移的相关性。基于生物信息学分析探索rs10380基因型与MTRR基因表达的关系及其可能机制。结果 研究共纳入患儿75
例,rs10380 野生 CC 基因型和 C 等位基因的分布频率分别为 62.67% 和 81.33%,变异 CT 基因型和 T 等位基因的分布频率分别为
37.33%和18.67%,符合Hardy-Weinberg平衡(P>0.05)。CC基因型患儿的电解质紊乱发生率(51.06%)和肿瘤转移率(57.45%)显
著高于CT基因型患儿(P<0.05)。两种基因型患儿的24 h和42 h C/D比值、复发率差异无统计学意义(P>0.05)。生信分析结果
显示,MTRR 蛋白主要与 MMAA 等 10 种蛋白协同发挥作用,并参与了含硫氨基酸生物合成等多种生物过程。结论 MTRR
rs10380 CC基因型可能是颅内肿瘤患儿MTX化疗后电解质紊乱和肿瘤转移的危险因素。
关键词 颅内肿瘤;甲氨蝶呤;甲硫氨酸合成酶还原酶;基因多态性;不良反应;预后
Associations of MTRR gene polymorphism and methotrexate plasma concentration and adverse drug
reaction in children with intracranial tumors
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ZHAO Danqi ,LI Miao ,SHI Zhengyuan ,XU Xiqiao ,WANG Shumei (1. Dept. of Pharmacy, Beijing
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Shijitan Hospital, Capital Medical University, Beijing 100038, China;2. Dept. of Clinical Pharmacy, School of
Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China;3. Dept. of Pediatrics, Beijing
Shijitan Hospital, Capital Medical University, Beijing 100038, China;4. Beijing Key Laboratory of Bio-
characteristic Profiling for Evaluation of Rational Drug Use, Beijing 100038, China)
ABSTRACT OBJECTIVE To investigate the impact of the methionine synthase reductase (MTRR) rs10380 C>T gene
polymorphism on methotrexate (MTX) plasma concentration, adverse drug reaction, and prognosis in children with intracranial
tumors. METHODS Peripheral blood was collected from children with intracranial tumors, and genomic DNA was extracted. The
MTRR rs10380 C>T genotype was analyzed using matrix-assisted laser desorption/ionization-time of flight-mass spectrometry. The
association of the MTRR rs10380 C>T gene polymorphism with the ratio of MTX plasma concentration to dose (C/D ratio),
adverse drug reaction, tumor recurrence, and metastasis was analyzed. Bioinformatics analysis was used to explore the association
of the rs10380 genotype and MTRR gene expression and its possible mechanisms. RESULTS A total of 75 children were included
in the study. The distribution frequencies of the wild-type CC genotype and C allele of rs10380 were 62.67% and 81.33%,
respectively, while the distribution frequencies of the variant CT genotype and T allele were 37.33% and 18.67%, respectively,
which were in accordance with Hardy-Weinberg equilibrium
Δ 基金项目 国家自然科学基金项目(No.81872926);临床合理用
药生物特征谱学评价北京市重点实验室项目(No.BZ0439);首都医科 (P>0.05). The incidence of electrolyte disorders (51.06%)
大学附属北京世纪坛医院科研基金项目(No.2023-c01);首都医科大学 and tumor metastasis rate (57.45%) in children with the CC
附属北京世纪坛医院青年基金项目(No.2022-q19) genotype were significantly higher than those with the CT
*第一作者 硕士研究生。研究方向:神经系统疾病临床药学。
genotype (P<0.05). No significant differences were observed
E-mail:celeste_2937@163.com
# 通信作者 主任药师,硕士生导师,博士。研究方向:临床药理学 in the 24-hour and 42-hour C/D ratios and recurrence rates
和遗传药理学。电话:010-63926368。E-mail:13811830809@126.com between the two genotypes of children (P>0.05).
· 2646 · China Pharmacy 2024 Vol. 35 No. 21 中国药房 2024年第35卷第21期