中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (20): 3208-3215.doi: 10.3969/j.issn.2095-4344.2017.20.016

• 组织构建基础实验 basic experiments in tissue construction • 上一篇    下一篇

基于HLA组特异性单倍体全长测序方法对模棱两可结果的准确定型

王宋兴1,阳 辉2,何柳媚1,洪文旭1,邹红岩1,徐筠娉1   

  1. 1深圳市血液中心输血医学研究所,广东省深圳市  518035;2深圳市晋百慧生物有限公司,广东省深圳市   518035
  • 修回日期:2017-05-18 出版日期:2017-07-18 发布日期:2017-07-28
  • 通讯作者: 邹红岩,主任技师,深圳市血液中心输血医学研究所,广东省深圳市 518035; 并列通讯作者:徐筠娉,博士,副主任技师,深圳市血液中心输血医学研究所,广东省深圳市 518035
  • 作者简介:王宋兴,1987年生,广东省揭西县人,汉族,2010年南方医科大学毕业,主管技师,主要从事组织配型与免疫遗传学研究。
  • 基金资助:

    广东省医学科研基金(A2016222);深圳市战略新兴产业发展专项资金(JSGG20160328103642937);深圳市科技研发资金(JCYJ20160427172335974);深圳市卫生计生系统科研项目(201401077)

Accurate determination of HLA ambiguous results based on group-specific haploid full-length sequencing

Wang Song-xing1, Yang Hui2, He Liu-mei1, Hong Wen-xu1, Zou Hong-yan1, Xu Yun-ping1   

  1. 1Institute of Transfusion Medicine of Shenzhen Blood Center, Shenzhen 518035, Guangdong Povince, China; 2Shenzhen Jin Baihui Biological Co., Ltd., Shenzhen 518035, Guangdong Province, China
  • Revised:2017-05-18 Online:2017-07-18 Published:2017-07-28
  • Contact: Zou Hong-yan, Chief technician, Institute of Transfusion Medicine of Shenzhen Blood Center, Shenzhen 518035, Guangdong Povince, China; Xu Yun-ping, M.D., Associate chief technician, Institute of Transfusion Medicine of Shenzhen Blood Center, Shenzhen 518035, Guangdong Povince, China
  • About author:Wang Song-xing, Technician-in-charge, Institute of Transfusion Medicine of Shenzhen Blood Center, Shenzhen 518035, Guangdong Povince, China
  • Supported by:

    the Medical Research Foundation of Guangdong Province, No. A2016222; the Special Foundation for Strategic Emerging Industries Development in Shenzhen, No. JSGG20160328103642937; the Science and Technology Research and Development Foundation of Shenzhen, No. JCYJ20160427172335974; the Research Project of Shenzhen Health and Family Planning System, No. 201401077

摘要:

文章快速阅读:

文题释义:
单倍体全长测序方法:
根据HLA-A、-B、-C、-DRB1和-DQB1基因的组特异性分类,分别设计基因全长单倍型组特异性扩增引物对HLA-A、-B、-C、-DRB1和-DQB1基因需要分型的外显子及内含子区域进行PCR扩增;完成扩增后,为每个基因设计一套通用正反向全长测序引物对HLA基因所有外显子及内含子进行测序。
模棱两可结果:所谓的HLA模棱两可结果产生的原因可分为两类,一是等位基因的差异碱基位于测序范围之外;二是测序范围内不同等位基因碱基序列的组合可以获得相同的杂合序列。本文中的低分辨结果HLA-A*02杂合HLA-A*11就属于第一类,而HLA-C*08杂合HLA-C*07∶373就属于第二类。

 

摘要
背景:
传统的HLA测序分型技术都是对父系母系双倍体进行扩增,由于HLA多样性高,产生了大量的模棱两可难题,而采用基于组特异性单倍体全长测序分型方法来解决模棱两可结果的确认定型鲜有报道。
目的:分析基于组特异性单倍体全长测序分型方法对HLA基因分型模棱两可结果准确定型的效果。
方法:对2例模棱两可结果标本以低分辨率分型方法结果作为参考起点,通过组特异性扩增分离,基于等位基因全长单倍体的Sanger测序(PCR-SBT)分型。
结果与结论:①2例模棱两可分型结果分别为A*02∶03∶01及C*07:02∶01∶01杂合新等位基因;②A*02∶03∶01杂合新等位基因与A*11∶01∶01∶01全长比较,在NT817由C发生突变为T;③C*07∶02∶01∶01杂合新等位基因与C*08∶01∶01比较,在NT879由A发生突变为G;④结果表明,以低分辨率分型方法结果作为参考起点,通过组特异性扩增分离,基于组特异性单倍体全长测序分型方法能准确定型HLA基因分型模棱两可结果并发现新等位基因。

 

 

ORCID: 0000-0001-5064-7917(邹红岩)

关键词: 组织构建, 组织工程, 基因多态性, HLA, 特异性扩增, 单倍体全长测序, 模棱两可结果

Abstract:

BACKGROUND: Due to the polymorphism of HLA, a large number of ambiguities have been generated by conventional HLA typing techniques, and confirmed stereotypes of ambiguous results based on group-specific haploid full-length typing are rarely reported.

OBJECTIVE: To analyze the accuracy of HLA-typing ambigulity based on group-specific haploid full-length sequencing.
METHODS: The low-resolution results were used as the starting point for two ambiguous samples. Sanger sequencing (PCR-SBT) based on haploid full-length was performed after group-specific amplification.

RESULTS AND CONCLUSION: One case showed a new A*02:03:01 allele, which was found a mutation in NT817 from C to T in comparison with A*11:01:01:01. The other case indicated another new C*07:02:01:01, which was found a mutation in NT879 from A to G in comparison with C*08:01:01. In conclusion, these results indicate that the group-specific haploid full-length sequencing method can be used to accurately classify HLA alleles and to discover new alleles.

 

 

Key words: HLA Antigens, Genes, Tissue Engineering

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