Epidermolysis bullosa simplex is an autosomal dominant inherited skin blistering disorder caused by mutations in the genes KRT5 or KRT14 coding for the basal epidermal keratins 5 and 14, respectively. We describe a novel heterozygous pathogenic missense mutation (KRT5:c.596A>T, p.Lys199Met) in a Hindoestan male with early onset localized epidermolysis bullosa simplex that segregated with the phenotype in the family. We also found a new heterozygous amino acid substitution polymorphism in the variable keratin 14 N-terminal head domain (KRT14:c.88C>T, p.Arg30Cys), that did not segregate with the phenotype.
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http://dx.doi.org/10.1684/ejd.2010.0804 | DOI Listing |
Clin Exp Dermatol
January 2025
St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, UK.
Background: In recessive dystrophic epidermolysis bullosa (RDEB), complications like oesophageal strictures, hand contractures, cardiomyopathy and cutaneous squamous cell carcinoma (SCC) may develop, necessitating procedures such as oesophageal dilatation (OD), gastrostomy tube placement and hand surgery.
Objectives: To determine prevalence and age of onset of milestone events by RDEB subtype, specifically dysphagia, first OD, first gastrostomy tube, first hand surgery, cardiomyopathy, first SCC and death.
Methods: The Prospective Epidermolysis Bullosa Longitudinal Evaluation Study (PEBLES) is a register study of individuals with RDEB which records comprehensive EB- and non-EB-related health information.
Clin Cosmet Investig Dermatol
January 2025
Department of Dermatology, Candidate Branch of National Clinical Research Centre for Skin and Immune Diseases, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, People's Republic of China.
Dystrophic epidermolysis bullosa (DEB) is a heterogeneous and rare genetic skin disease caused by mutations in the gene, which encodes Type VII collagen. The absence or dysfunction of Type VII collagen can cause the dense lower layer of the basal membrane zone of the skin to separate from the dermis, leading to blister formation and various complications. In different DEB subtypes, the severity of the phenotype is associated, to some extent, with the outcome of Type VII collagen caused by mutations in the gene, which may be reduced in expression, remarkably reduced, or completely absent.
View Article and Find Full Text PDFJ Invest Dermatol
January 2025
Department of Pediatrics, New York Medical College, Valhalla, NY 10595, USA. Electronic address:
J Dermatol
January 2025
Department of Dermatology and Allergology, EB House Austria, Research Program for Molecular Therapy of Genodermatoses, University Hospital of the Paracelsus Medical University Salzburg, Salzburg, Austria.
Recessive dystrophic epidermolysis bullosa (RDEB) is caused by mutations in COL7A1, leading to loss or dysfunction of type-VII collagen (C7), a protein essential for skin stability. Clinically, patients suffer from severe skin blistering, chronic or recurrent wounds, and scarring, which predispose to early onset of aggressive squamous cell carcinoma. Previous studies showed that RDEB-keratinocytes (RDEB-KC) express high levels of matrix-metalloproteinase 9 (MMP-9), a molecule known to play a crucial role in wound chronification if dysregulated.
View Article and Find Full Text PDFJ Control Release
January 2025
Charles Institute of Dermatology, School of Medicine, University College Dublin, Dublin, Ireland. Electronic address:
Gene editing technologies, particularly clustered regularly interspersed short palindromic repeats (CRISPR) and CRISPR-associated (Cas) proteins, have revolutionized the ability to modify gene sequences in living cells for therapeutic purposes. Delivery of CRISPR/Cas ribonucleoprotein (RNP) is preferred over its DNA and RNA formats in terms of gene editing effectiveness and low risk of off-target events. However, the intracellular delivery of RNP poses significant challenges and necessitates the development of non-viral vectors.
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