A novel LAMA3 mutation in a newborn with junctional epidermolysis bullosa herlitz type

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Abstract

The case of a male neonate of 41 weeks' gestation who developed blistering of the skin immediately after birth is described. His parents were consanguineous Tunisians. Electron microscopy of a cutaneous biopsy showed skin cleavage within the lamina lucida and immunoepitope mapping revealed a complete absence of laminin 332 expression. These findings referred to the diagnosis of junctional epidermolysis bullosa (JEB) Herlitz type. The neonate died at 3 months of age due to sepsis. Molecular analysis of laminin 332 chain genes LAMA3, LAMB3 and LAMC2 disclosed a novel homozygous nonsense mutation in LAMA3 (p.Y955X). Clinical and laboratory analyses are essential for the diagnosis of JEB subtypes, and molecular analysis screening is crucial to manage a new pregnancy in families with suspected cases of JEB.

Original languageEnglish
Pages (from-to)188-191
Number of pages4
JournalNeonatology
Volume99
Issue number3
DOIs
Publication statusPublished - Mar 2011

Keywords

  • Junctional epidermolysis bullosa Herlitz type
  • LAMA 3 mutation

ASJC Scopus subject areas

  • Developmental Biology
  • Pediatrics, Perinatology, and Child Health

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