Molecular insights into genodermatoses: Genetic findings from 43 patients.

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Tác giả: Ayda Acar, Tahir Atik, Enise Avci Durmusalioglu, Yusuf Can Dogan, Nilay Duman, Esra Isik, Arzu Deniz Sama, Mehmet Mert Topaloglu, Turkan Turkut Tan

Ngôn ngữ: eng

Ký hiệu phân loại: 633.14 *Rye

Thông tin xuất bản: Germany : Archives of dermatological research , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 741511

Genodermatoses, a group of inherited skin disorders, are characterized by significant genetic heterogeneity and clinical variability, often posing diagnostic and therapeutic challenges. Advances in next-generation sequencing (NGS) technologies, such as whole exome sequencing (WES) and clinical exome sequencing (CES), have transformed the diagnostic landscape by enabling comprehensive genetic analysis. This study aimed to investigate the molecular spectrum and clinical relevance of genetic findings in 43 patients diagnosed with genodermatoses. Demographic, clinical, and molecular data were collected, and genetic testing was performed using the MGI-Seq platform. Variants were analyzed for pathogenicity, zygosity, and novelty. Neurofibromatosis Type 1 (27.9%) and Epidermolysis Bullosa (23.2%) were the most common diagnoses, followed by Ichthyosis (16.2%) and Oculocutaneous Albinism (13.9%). Less frequent conditions included Ectodermal Dysplasia (6.9%) and single cases of Palmoplantar Keratoderma, PTEN Hamartoma Syndrome, Rothmund-Thomson Syndrome, Xeroderma Pigmentosum, and Megaconial Congenital Muscular Dystrophy (each 2.3%). Molecular findings underscored the genetic complexity of genodermatoses, with 42 distinct variants identified across 19 genes. Of these, 13 variants (31%) were novel, expanding the known molecular spectrum. The novel variants were detected in genes including NF1, COL7A1, ITGB4, COL17A1, NIPAL4, ALOX12B, KRT10, ST14, OCA2, and PTEN, highlighting the diagnostic value of comprehensive genetic analysis. The mean age at diagnosis varied significantly among conditions, reflecting the diagnostic challenges and clinical variability of genodermatoses. This study emphasizes the critical role of WES and CES in diagnosing genodermatoses and understanding their molecular basis, which enhances diagnostic accuracy and supports personalized management strategies.
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