检验医学 ›› 2022, Vol. 37 ›› Issue (7): 646-651.DOI: 10.3969/j.issn.1673-8640.2022.07.010

• 技术研究与评价·论著 • 上一篇    下一篇

PCR结合熔解曲线在高血压药物相关基因突变检测中的应用

万长春1, 杨辉2, 庄学伟3()   

  1. 1.金湖县人民医院检验科,江苏 金湖 211600
    2.中日友好医院检验科,北京 100029
    3.山东省立第三医院检验科,山东 济南 250000
  • 收稿日期:2021-04-23 修回日期:2022-01-09 出版日期:2022-07-30 发布日期:2022-08-26
  • 通讯作者: 庄学伟
  • 作者简介:庄学伟,E-mail: zy708910614@163.com
    万长春,男,1972年生,硕士,副主任技师,主要从事感染性疾病及药物基因诊断相关工作。
  • 基金资助:
    山东省自然科学基金资助项目(ZR2020MH321)

Application of polymerase chain reaction melting curve method in determining hypertensive drug-related gene mutations

WAN Changchun1, YANG Hui2, ZHUANG Xuewei3()   

  1. 1. Department of Clinical Laboratory,Jinhu People's Hospital,Jinhu 211600,Jiangsu,China
    2. Department of Clinical Laboratory,China-Japan Friendship Hospital,Beijing 100029,China
    3. Department of Clinical Laboratory,Shandong Provincial Third Hospital,Jinan 250000,Shandong,China
  • Received:2021-04-23 Revised:2022-01-09 Online:2022-07-30 Published:2022-08-26
  • Contact: ZHUANG Xuewei

摘要:

目的 评价聚合酶链反应(PCR)结合熔解曲线(简称溶解曲线法)在高血压药物相关基因突变检测中的应用价值。方法 采用PCR熔解曲线法检测100例高血压患者5个高血压药物相关基因的单核苷酸多态性(SNP)位点[细胞色素P450同工酶2D6(CYP2D6)rs1065852、细胞色素P450同工酶2C9(CYP2C9)rs1057910、β1肾上腺素受体(ADRB1)rs1801253、血管紧张素Ⅱ受体1(AGTR1)rs5186、血管紧张素转换酶(ACE)rs1799752],并与DNA测序结果进行比对。对PCR熔解曲线法的准确性、重复性、抗干扰能力进行评价。结果 PCR熔解曲线法与测序法对100例高血压患者的检测结果均一致,符合率为100%;检测5个基因位点Tm值的极值(R)均<0.5 ℃。血红蛋白(Hb)≤2 g/L、胆红素(Bil)≤342 μmol/L、三酰甘油(TG)≤37 mmol/L对PCR熔解曲线法均无影响,Tm值的变异系数(CV)均≤5%。100例高血压患者中,AGTR1(c.1166A>C)及CYP2C9*3(c.1075A>C)纯合突变型各1例,CYP2D6*10基因型频率为39.5%,CYP2C9*3基因型频率为5.5%,ADRB1基因突变型C等位基因频率为62.0%,AGTR1基因突变型C等位基因频率为5.0%,ACE缺失型D等位基的频率为35.0%。结论 PCR熔解曲线法操作简便,对设备要求低,可作为检测降压药物相关基因突变的常规方法。

关键词: 聚合酶链反应熔解曲线法, 高血压药物相关基因, 单核苷酸多态性

Abstract:

Objective To assess the clinical application of polymerase chain reaction(PCR) melting curve method in determining hypertensive drug-related gene mutations. Methods Totally,100 hypertension patients were enrolled,and the single nucleotide polymorphism(SNP) sites of hypertensive drug-related gene mutations,including cytochrome P450 2D6(CYP2D6)rs1065852,cytochrome P450 2C9(CYP2C9)rs1057910,betal-adrenergic receptor-1(ADRB1)rs1801253,angiotensin Ⅱ receptor 1(AGTR1)rs5186 and angiotensin-converting enzyme(ACE)rs1799752,were determined. DNA sequencing was performed. The accuracy,repeatability,anti-interference and the genotype frequency of PCR melting curve method were evaluated. Results The consistency of PCR melting curve method and DNA sequencing was 100%. The extremum values(R) of the Tm about 5 gene sites were all <0.5 ℃. Hemoglobin(Hb)≤2 g/L,bilirubin(Bil)≤342 μmol/L,triglyceride(TG)≤37 mmol/L had no effect on PCR melting curve method. The coefficient of variation(CV)of Tm was ≤5%. In 100 hypertension patients,there was 1 case of AGTR1(c.1166A>C) and 1 case of CYP2C9*3(c.1075A>C)homozygous mutations. The genotype frequencies of CYP2D6*10 and CYP2C9*3 were 39.5% and 5.5%,respectively. The genotype frequencies of C allele of mutant ADRB1,C allele of mutant AGTR1 and D allele of ACE deletion were 62.0%,5.0% and 35.0%,respectively. Conclusions PCR melting curve method is simple and has low requirements for equipments,and it can be used as a routine method for determining anti-hypertensive drug-related gene mutations.

Key words: Polymerase chain reaction melting curve method, Hypertensive drug-related gene, Single nucleotide polymorphism

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