MTHFR与FPGS基因多态性对急性淋巴细胞白血病患儿大剂量甲氨蝶呤毒性反应及排泄延迟的影响

Journal of Diseases Monitor & Control(2022)

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Abstract
目的 研究急性淋巴细胞白血病(ALL)患儿MTHFRrs1801133与FPGSrs1544105基因多态性与大剂量甲氨蝶吟(HDMTX)所致严重毒性反应及甲氨蝶吟(MTX)排泄延迟的相关性.方法 收集HDMTX化疗发生严重毒性反应的42例ALL患儿血清标本,检测MTX血药浓度及MTX代谢相关基因亚甲基四氢叶酸还原酶(MTHFR)与叶酰多聚谷氨酸合成酶(FPGS)基因分型并分析结果.结果 42例HDMTX化疗后发生严重毒性反应ALL患儿中,MTHFRrs1801133位点发生纯合突变(TT)者16例(38.1%,16/42),发生杂合突变(CT)者17例(40.5%,17/42);FPGSrs1544105位点发生纯合突变(AA)者11例(26.2%,11/42),发生杂合突变(AG)者24例(57.1%,24/42);发生MTX排泄延迟者32例(76.2%,32/42).MTHFR与FPGS基因突变者与野生型相比,HDMTX化疗后排泄延迟发生率更高.结论 MTHFR与FPGS基因多态性与ALL患儿MTX严重毒性反应及排泄延迟可能具有相关性.
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Key words
Genetic polymorphisms,High-dose methotrexate,Children with acute lymphoblastic leukemia,Toxic reaction,Delayed elimination
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