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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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                                     1, 4
                                                        1, 4 #
                                               1, 4
                            3
          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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                                                1, 4
          ZHAO Danqi ,LI Miao ,SHI Zhengyuan ,XU Xiqiao ,WANG Shumei (1.  Dept.  of  Pharmacy,  Beijing
                      1, 2
                                                                              1, 4
                                                             1, 4
          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
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