کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2811660 1569269 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A Homozygous Nonsense Mutation in the Human Desmocollin-3 (DSC3) Gene Underlies Hereditary Hypotrichosis and Recurrent Skin Vesicles
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی ژنتیک
پیش نمایش صفحه اول مقاله
A Homozygous Nonsense Mutation in the Human Desmocollin-3 (DSC3) Gene Underlies Hereditary Hypotrichosis and Recurrent Skin Vesicles
چکیده انگلیسی

Desmosomes are the major players in epidermis and cardiac muscles and contribute to intercellular binding and maintenance of tissue integrity. Two important constituents of desmosomes are transmembrane cadherins named desmogleins and desmocollins. The critical role of these desmosomal proteins in epithelial integrity has been illustrated by their disruption in mouse models and human diseases. In the present study, we have investigated a large family from Afghanistan in which four individuals are affected with hereditary hypotrichosis and the appearance of recurrent skin vesicle formation. All four affected individuals showed sparse and fragile hair on scalp, as well as absent eyebrows and eyelashes. Vesicles filled with thin, watery fluid were observed on the affected individuals' scalps and on most of the skin covering their bodies. A scalp-skin biopsy of an affected individual showed mild hair-follicle plugging. Candidate-gene-based homozygosity linkage mapping assigned the disease locus to 8.30 cM (8.51 Mbp) on chromosome 18q12.1. A maximum multipoint LOD score of 3.30 (θ = 0.00) was obtained at marker D18S877. Sequence analysis of four desmoglein and three desmocollin genes, contained within the linkage interval, revealed a homozygous nonsense mutation (c.2129T>G [p.Leu710X]) in exon-14 of the desmocollin-3 (DSC3) gene.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 85, Issue 4, 9 October 2009, Pages 515–520
نویسندگان
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