临床儿科杂志 ›› 2016, Vol. 34 ›› Issue (8): 618-.doi: 10.3969/j.issn.1000-3606.2016.08.014

• 综合报道 • 上一篇    下一篇

Apert 综合征 1 例临床特征与基因类型分析

陆妹, 傅美娇, 谢辉   

  1. 厦门市妇幼保健院儿科(福建厦门 361003)
  • 收稿日期:2016-08-15 出版日期:2016-08-15 发布日期:2016-08-15
  • 通讯作者: 陆妹 E-mail:lm800529@126.com

Genotype-phenotype analysis in Apert syndrome

LU Mei, FU Meijiao, XIE Hui   

  1. Department of Pediatrics, Xiamen Maternal and Child Health Hospital, Xiamen 361003, Fujian, China
  • Received:2016-08-15 Online:2016-08-15 Published:2016-08-15

摘要: 目的 分析Apert综合征(AS)临床特征与基因类型。方法 回顾1例AS患儿的临床资料及患儿和其父亲 FGFR2基因测序结果,并复习相关文献。结果 男性患儿, 1岁1个月,扁头,突眼,眼距宽,耳位低,下颌小,高腭弓,无腭裂, 双手五指并指并挛缩,双足五趾并趾。FGFR2基因外显子7 c.758C >? G,p.P253R杂合变异,父亲未检测到相关基因突变, 支持Apert综合征诊断。文献检索到AS个案24例,22例明显颅面部畸形, 1例轻微畸形, 1例无畸形;均有手足并指/趾畸形。 基因类型为S252W 13例,P253R 3例,Alu元件插入3例,基因缺失2例,杂合突变2例,序列变异1例。结论 AS患儿颅 面部畸形及手足并指/趾明显,FGFR2基因以S252W、P253R突变为主。

Abstract: Objectives  To analyze the clinical features and gene types of Apert syndrome (AS). Methods The clinical data of one boy with AS were retrospectively revisited and FGFR2 of the boy and his father were analyzed with PCR  amplification and gene sequencing. The relevant literatures were reviewed. Results The boy was one year and one month  old, with brachycephaly, exophthalmos, hypertelorism, low set ears, micrognathia, high-vaulted arch, without cleft palate, and  with syndactyly of both fingersⅠ-Ⅴ and toesⅠ-Ⅴ. A heterozygous mutation (c.758C?>?G,p.P253R) in exon 7 of FGFR2 was  detected in the boy, supporting the diagnosis of AS. The relevant gene mutation was not detected in his father. Among the 24 cases  of AS retrieved from literature, 22 cases were with obvious craniofacial malformations, one with mild craniofacial malformations  and one without craniofacial malformations. All cases were with syndactyly of both fingers and toes. Thirteen cases of FGFR2 were with S252W mutation, 3 cases with P253R , 3 cases with Alu insertion, one with 1.93-kb deletion, removing exon IIIc and  substantial portions of the flanking introns, one case with a heterozygous 1372 bp deletion between FGFR2 exons IIIb and IIIc,  2 cases with (c.756_758delGCCinsCTT) in the IgIIe-IgIIIa linker region and one case with sequence variant T78.501A in intron 8.  Conclusions Apert syndrome present with craniofacial malformations and syndactyly of hands and feet, S252W and P253R  are main mutations of AS.