Ultrastructure abnormalities of collagen and elastin in Arab patients with arterial tortuosity syndrome

Autor:	Muhammad Faiyaz‐Ul‐Haque, Mohammed Mubarak, Atqah AbdulWahab, Ammar C. AlRikabi, Abbas H. Alsaeed, Maram Al‐Otaiby, Zafar Nawaz, Syed H. E. Zaidi, Sulman Basit
Rok vydání:	2022
Předmět:	Joint Instability Histology Vascular Malformations Humans Skin Diseases Genetic Ehlers-Danlos Syndrome Dermatology Arteries Collagen Pathology and Forensic Medicine Arabs Elastin
Zdroj:	Journal of cutaneous pathologyREFERENCES. 49(7)
ISSN:	1600-0560
Popis:	Arterial tortuosity syndrome (ATS) is a rare autosomal recessive disease characterized by elongation and tortuosity of the large- and medium-sized arteries. ATS patients display features that are also found in Ehlers-Danlos syndrome (EDS) patients. ATS is caused by pathogenic mutations in the SLC2A10 gene, which encodes for the glucose transporter, GLUT10. This study aimed at examining the ultrastructure of skin for abnormalities that can explain the loose skin and arterial phenotypes of Arab patients with the p.S81R mutation in SLC2A10. Forty-eight patients with SLC2A10 mutation were recruited for this study. Skin biopsy specimens from three children with ATS and a healthy child were examined by electron microscopy to determine the ultrastructure of collagen and elastin. Histopathologic staining of sections from tissue biopsy specimens was also performed. Large spaces were observed among the collagen fibrils in the skin biopsy specimens obtained from ATS patients, suggesting disorganization of the collagen structures. Furthermore, elastin fiber contents and their thickness are reduced in the skin. In small muscular arteries in the skin from ATS patients, discontinuous internal elastic lamina, lack of myofilaments, and disorganized medial smooth muscle cells with vacuolated cytoplasm are present. The disorganization of collagen fibrils and reduced elastin contents in the skin may explain the loose skin phenotype of ATS patients similar to the EDS patients. The lack of elastin in small muscular arteries may have contributed to the development of arterial tortuosity in these patients.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d04260a4f033b830fe74042e0e69587d https://pubmed.ncbi.nlm.nih.gov/35302653 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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