华西口腔医学杂志 ›› 2018, Vol. 36 ›› Issue (6): 623-627.doi: 10.7518/hxkq.2018.06.008

• 基础研究 • 上一篇    下一篇

干扰素调节因子6基因致病的Van der Woude综合征的家系调查和遗传特点分析

杜新雅1,李晓宇1,武斌1,谢春1,田卫东2,3()   

  1. 1. 深圳市龙华区人民医院口腔科,深圳 518000
    2. 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院创伤与整形外科
    3. 口腔再生医学国家地方联合工程实验室(四川大学),成都 610041
  • 收稿日期:2018-01-27 修回日期:2018-09-27 出版日期:2018-12-01 发布日期:2018-12-12
  • 通讯作者: 田卫东 E-mail:drtwd@sina.com
  • 作者简介:杜新雅,副主任医师,博士,E-mail: 5759924@qq.com
  • 基金资助:
    深圳市科创委基层研究项目(JCYJ20170307141759582)

Clinical and genetic features of Chinese kindreds with Van der Woude syndrome caused by interferon regulatory factor 6 mutation

Xinya Du1,Xiaoyu Li1,Bin Wu1,Chun Xie1,Weidong Tian2,3()   

  1. 1. Dept. of Stomotology, The People’s Hospital of Longhua, Shenzhen 518000, China;
    2. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Trauma and Plastic Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
    3. National Engineering Laboratory for Oral Regenerative Medicine, Sichuan University, Chengdu 610041, China
  • Received:2018-01-27 Revised:2018-09-27 Online:2018-12-01 Published:2018-12-12
  • Contact: Weidong Tian E-mail:drtwd@sina.com
  • Supported by:
    Shenzhen Science and Technology Commission Basic Research Project(JCYJ20170307141759582)

摘要:

目的 探讨中国人Van der Woude综合征(VWS)的临床表型及遗传学特点。方法 先证者法收集14个VWS家系并进行口腔专科检查、家系调查及基因突变分析,分析不同VWS家系个体或同一家系不同个体的临床表型,绘制家系图谱,明确遗传方式及致病基因,计算表型分布频率和表型基因频率。结果 VWS家系基本符合常染色体显性遗传特征,患者多数表现为典型的VWS,致病基因为干扰素调节因子6(IRF6)。VWS表型分布频率为:唇瘘91.9%,唇腭裂73.0%,牙畸形8.1%。不同家系个体和同一家系的不同个体临床表型存在明显差异。结论 收集的家系均为常染色体显性遗传,表现度变异大。中国人群VWS致病基因为IRF6,为Ⅰ型VWS。

关键词: Van der Woude综合征, 临床表型, 唇腭裂, 干扰素调节因子6, 遗传特征

Abstract:

Objective This study aimed to investigate the clinical phenotype and genetic characteristics of Chinese families with Van der Woude syndrome (VWS).Methods Clinical manifestations between 14 families and within each family were recorded. Possible inheritance modes and pathogenic genes were analyzed. Phenotypic distribution and gene frequencies were calculated.Results Of the pedigrees investigated, an autosomal dominant inheritance pattern was suggested. All patients had typical symptoms. The pathogenic gene was interferon regulatory factor 6 (IRF6). Phenotypic distribution frequencies were as follows: lip pits (91.9%), cleft lip and/or palate (73.0%), and hyperdontia (8.1%). There were significant differences in clinical phenotypes among individuals of different families and individuals of the same family.Conclusion VWS in a Chinesepopulation was dominantly inherited with high penetrance and variable expressivity. The pathogenic gene was IRF6. VWS in a Chinese population was genotyped as VWS1.

Key words: Van der Woude syndrome, clinical phenotype, cleft lip and/or palate, interferon regulatory factor 6, genetic characteristic

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