检验医学 ›› 2016, Vol. 31 ›› Issue (12): 1093-1096.DOI: 10.3969/j.issn.1673-8640.2016.12.018

• 病例报道·论著 • 上一篇    下一篇

高通量全外显子测序诊断2A型肢带型肌营养不良1例

胡娟1, 申春梅1, 王剑2, 李牛2   

  1. 1. 复旦大学附属上海市第五人民医院检验科,上海 200240
    2. 上海交通大学医学院附属上海儿童医学中心儿科转化医学研究所,上海 200127
  • 收稿日期:2015-09-15 出版日期:2016-12-25 发布日期:2016-12-29
  • 作者简介:null

    作者简介:胡 娟,女,1984年生,学士,技师,主要从事临床微生物致病基因研究。

    通讯作者:李 牛,联系电话:021-38625559。

Diagnosis of a case with type 2A of limb-girdle muscular dystrophy by high-throughput sequencing

HU Juan1, SHEN Chunmei1, WANG Jian2, LI Niu2   

  1. 1. Department of Clinical Laboratory,the Fifth People's Hospital of Shanghai,Fudan University,Shanghai 200240,China
    2. Institute of Pediatric Translational Medicine,Shanghai Children's Medical Center,Shanghai Jiaotong University School of Medicine,Shanghai 200127,China
  • Received:2015-09-15 Online:2016-12-25 Published:2016-12-29

摘要:

目的 对1例患有肌营养不良的中国籍汉族男孩进行临床分子诊断。方法 运用高通量测序技术对1例已排除杜氏/贝氏进行性肌营养不良(DMD/BMD)的患儿进行外周血有核细胞基因全外显子组测序(WES),并使用Sanger测序对WES发现的基因相关突变进行验证。结果 WES发现钙蛋白酶3基因(CAPN3)存在复合杂合突变,其中3号外显子区域发现1个杂合的无义突变c.439C>T,p.Arg147*,而13号外显子存在1个杂合的错义突变c.1621C>T,p. Arg541Trp。结论 借助高通量DNA测序技术,该患者最终被诊断为2A型肢带型肌营养不良(LGMD)。

关键词: 肢带型肌营养不良症, 钙蛋白酶3, 全外显子测序, 基因突变

Abstract:

Objective To perform the clinical molecular diagnosis in a Chinese Han boy with muscular dystrophy.Methods This boy had been diagnosed to exclude Duchenne and Becker muscular dystrophy(DMD/BMD). The whole exome sequencing(WES) was performed for his peripheral blood genomic DNA,and the relevant mutations identified by WES were verified by Sanger sequencing. Results WES results revealed that calpin 3 gene(CAPN3) existed 2 compound heterozygous mutations. One is a heterozygous nonsense mutation c.439C>T,p.Arg147* in exon 3,while exon 13 had another heterozygous missense mutation c.1621C>T, p. Arg541Trp. Conclusions By high-throughput sequencing,the patient is eventually diagnosed as type 2A of limb-girdle muscular dystrophy(LGMD).

Key words: Limb-girdle muscular dystrophy, Calpin 3, Whole exome sequencing, Gene mutation

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