Netherton syndrome: Mutation analysis of two Taiwanese families

Shuan Pei Lin, Shu Yi Huang, Mei Eng Tu, Yu Hung Wu, Cheng Yueh Lin, Hsiang Yu Lin, Guey Jen Lee-Chen

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Netherton syndrome (NS) is a severe autosomal recessive skin disorder characterized by congenital ichthyosiform erythroderma, hair shaft abnormalities, and atopic diathesis. Recently, pathogenic mutations were identified in serine protease inhibitor Kazal-type 5 (SPINK5), the gene that encodes lympho-epithelial Kazal-type related inhibitor (LEKTI), a type of serine protease inhibitor involved in the regulation of skin barrier formation and immunity. In the present report, we describe the mutation analysis of two Taiwanese patients with NS. Patient 1 has heterozygous mutations; the maternal allele has novel T808I (C-T transition in codon 808) and the paternal allele has recurrent R790X (C-T transition in codon 790). Patient 2 is homozygous for a novel polymorphism R267Q (G-A transition in codon 267). The change was not detected in the patient's father. Haplotype analysis revealed that the patient was homozygous for the 5 single nucleotide polymorphisms in the genomic sequence of SPINK5 as well as the flanking (GT)17 and D5S413, in addition to the discrepancy of R267Q. Nevertheless real-time quantitative PCR analysis revealed no microdeletion in the genomic sequence of SPINK5. Thus uniparental disomy of maternal SPINK5 allele was indicated.

Original languageEnglish
Pages (from-to)145-150
Number of pages6
JournalArchives of Dermatological Research
Volume299
Issue number3
DOIs
Publication statusPublished - 2007 Jun 1

    Fingerprint

Keywords

  • LEKTI
  • Mutation
  • Netherton syndrome
  • Taiwanese

ASJC Scopus subject areas

  • Dermatology

Cite this