期刊
ANNALS OF DERMATOLOGY
卷 33, 期 1, 页码 11-17出版社
KOREAN DERMATOLOGICAL ASSOC
DOI: 10.5021/ad.2021.33.1.11
关键词
Epidermolysis bullosa simplex; Keratin 5; Mutation
类别
资金
- Natural Science Foundation of China [81201181]
- Zhejiang provincial & Ministry of Health research fund for medical sciences [WKJ2013-2-023]
This study identified a novel genetic mutation in a Chinese family with localized EBS, expanding the mutational spectrum of EBS and providing valuable insights for prenatal screening, gene diagnosis, and gene therapy for localized EBS.
Background: Epidermolysis bullosa (EB) is a rare genetic disease with widely different clinical manifestations, but the relationship between genotype and phenotype is not fully understood. In the present study, we recruited a Chinese family in which two members had been diagnosed with localized EB simplex (EBS), with clinical manifestation, including blisters and erosions on the soles of the feet since infancy. Objective: To identify and confirm the genetic variation in a Chinese family diagnosed as localized EBS. Methods: Our study included two patients, other healthy members of the family, and 100 normal controls. Genomic DNA samples were isolated from each participant, and then polymerase chain reaction (PCR) direct sequencing was performed. Results: The results of PCR direct sequencing revealed a novel heterozygous missense mutation in codon 461 of exon 7 of KRT5 (c.1382T>C), which led to an amino acid change (p.L461P) in the patients with EBS but was absent in unaffected family members and 100 unrelated control samples. Conclusion: The present study broadens the mutational spectrum of EBS, and this knowledge could be harnessed for prenatal screening, gene diagnosis, and gene therapy for localized EBS.
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