Netherton Syndrome with a Novel Likely Pathogenic Variant c.420del (p.Ser141ProfsTer5) in SPINK5 Gene: A Case Report

Bibliographic Details
Title: Netherton Syndrome with a Novel Likely Pathogenic Variant c.420del (p.Ser141ProfsTer5) in SPINK5 Gene: A Case Report
Authors: Katya Kovacheva, Zornitza Kamburova, Preslav Vasilev, Ivelina Yordanova
Source: Case Reports in Dermatology, Vol 16, Iss 1, Pp 47-54 (2024)
Publisher Information: Karger Publishers, 2024.
Publication Year: 2024
Collection: LCC:Dermatology
Subject Terms: netherton syndromе, spink5 gene mutation, trichorrhexis invaginata, acitretin, case report, Dermatology, RL1-803
More Details: Introduction: Netherton syndrome (NS) is a rare autosomal recessive genodermatosis in the group of congenital ichthyosis. The clinical manifestations of the syndrome vary from a very mild clinical manifestation occurring with the picture of ichthyosis linearis circumflexa to exfoliative erythroderma. It can be fatal in the first days of a newborn’s life due to dehydration, hypothermia, weight loss, respiratory infections, and sepsis. A specific anomaly of the hair trichorrexis invaginata is considered pathognomonic for the syndrome. Genetic testing of SPINK5 gene is key to confirming the diagnosis and starting early treatment. Case Presentation: We present a case report of NS in a 6-year-old boy who suffered from generalized erythroderma and desquamation of the skin from birth. The patient has atopic diathesis, recurrent skin infections, increased levels of IgE, and delayed physical development. Two genetic variants in SPINK5 gene with clinical significance were identified. The first detected variant is a nonsense mutation, predicted to cause loss of normal protein function either by protein truncation or by nonsense-mediated mRNA decay. The second variant is a likely pathogenic frameshift mutation that truncates the protein in 5 amino acids. The child was treated with acitretin, without satisfactory effect. Conclusion: The genetic variant we have described correlates with a severe clinical phenotype of NS. The second genetic variant of the SPINK5 gene, inherited from the father in our case, is novel and has never been published in the literature.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1662-6567
Relation: https://beta.karger.com/Article/FullText/536083; https://doaj.org/toc/1662-6567
DOI: 10.1159/000536083
Access URL: https://doaj.org/article/764115ca868d4d28b32263aaf8002cd5
Accession Number: edsdoj.764115ca868d4d28b32263aaf8002cd5
Database: Directory of Open Access Journals
More Details
ISSN:16626567
DOI:10.1159/000536083
Published in:Case Reports in Dermatology
Language:English