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Waardenburg综合征Ⅱ型一家系基因突变研究 被引量：3

A Genetic Mutation Study in a Pedigree with Type Ⅱ Waardenburg Syndrome
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摘要 目的研究Waardenburg Syndrome(瓦登伯格综合征)Ⅱ型一个家系病例的分子病因,丰富对Waardenburg综合征Ⅱ型(WS2型)的基因诊断及遗传咨询的认识。方法采集1个Waardenburg综合征Ⅱ型家系,问卷式调查留取临床资料,签署知情同意书获得先证者及一级亲属血样。提取血基因组DNA,聚合酶链反应扩增MITF、SNAI2、EDNRB、EDN3、SOX10、PAX3基因编码区全部外显子,在ABI自动测序仪上双向测序,利用GeneTool软件及生物信息学网站判读分析数据。结果在一个Waardenburg综合征Ⅱ型家系中未找到已知WS2型相关基因MITF、SNAI2、EDNRB、EDN3、SOX10、PAX3的病理性突变。结论 Waardenburg综合征Ⅱ型还存在新的致病基因,下一步需要利用全外显子组测序技术对本家系进行致病基因的研究。 Objective To study the molecular etiology in a family affected with type Ⅱ Waardenburg syndrome （WS2 ） to increase our knowledge for improved genetic analysis and counseling for WS2. Methods A patient with type Ⅱ WS was inter-viewed with questionnaires. Genomic DNA of the patient and his family members was extracted. Complete coding exons of the MITF, SNAI2, EDNRB, EDN3, SOX10 and PAX3 genes were amplified and sequenced to identify mutations. The raw data were analyzed with the GeneTool software and information from molecular biological websites. Results No pathological muta-tions with a clear relationship to WS2 was found in the WS2 relevant genes of MITF, SNAI2, EDNRB, EDN3, SOX10 and PAX3. Conclusion We speculate that there are other new causative genes for WS2, which need to be further studied with whole exome sequencing （WES）.
作者 高紫璇 李金红 卢宇 王燕飞 程静 袁慧军 马芙蓉
机构地区 北京大学第三医院耳鼻喉科 解放军总医院耳鼻咽喉科研究所
出处 《中华耳科学杂志》 CSCD 北大核心 2014年第2期271-274,共4页 Chinese Journal of Otology
基金 国家自然科学基金面上项目申请代码H1305
关键词 Waardenburg综合征Ⅱ型 基因诊断 遗传咨询 NGS Waardenburg syndrome type Ⅱ Genetic diagnosis Genetic counseling WES
分类号 R349.8 [医药卫生—基础医学]
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参考文献17

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同被引文献19

  • 1罗耀俊,王合群.Waardenburg综合征一家系[J].中华医学遗传学杂志,1993,10(8):188.
  • 2Pingault V, Ente D, Dastot-Le Moal F, et al. Review and update of mutations causing Waardenburg syndrome[J]. Hum Murat, 2010,31(4) :391-406. 13OI:10. 1002/humu. 21211.
  • 3Farrer LA, Arnos KS, Asher JH Jr, et al. Locus heterogeneity for Waardenburg syndrome is predictive of clinical subtypes[J]. Am J Hum Genet, 1994,55(4) :728-737.
  • 4Hughes AE, Newton VE, Liu XZ, et al. A gene for Waardenburg syndrome type 2 maps close to the human homologue of the microphthalmia gene at chromosome 3p12-p14.1[J]. Nat Genet, 1994,7(4) :509-512.
  • 5Hodgkinson CA, Moore KJ, Nakayama A, et al. Mutations at the mouse microphthalmia locus are associated with defects in a gene encoding a novel basic-helix-loop-helix-zipper protein[J]. Cell, 1993,74(2) :395-404.
  • 6Steingrimsson E, Copeland NG, Jenkins NA. Melanocytes and the mierophthalmia transcription factor network[J]. Ann Rev Genet, 2004, 38: 365-411. DOI: 10. 1146/annurev. genet. 38. 072902. 092717.
  • 7Cao Y, Wang C. The COOH-terminal transactivation domain plays a key role in regulating the in vitro and in vivo function of Pax3 homeodomain[J]. J Biol Chem, 2000,275(13) :9854-9862. DOI: 10. 1007/s00606-008-0057-4.
  • 8Tassabehji M, Newton VE, Read AP. Waardenburg syndrome type 2 caused by mutations in the human microphthalmia (MITF) gene[J]. Nat Genet, 1994,8(3) :251-255.
  • 9Pingault V,Ente D,Dastot-Le Moal F,et al.Renew and update of mutations causing Waardenburg syndrome[J].Hum Mutat,2010,31(4):391-406.
  • 10Pardono E,Van Bever Y,Van den Ende J,et al.Waardenburg syndrome:Clinical differentiation between typesⅠandⅡ[J].Am J Med Genet A,2003,117A(3):223-235.

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中华耳科学杂志
2014年 第2期

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