Exome-first Approach Identified Novel Homozygous Dedicator of Cytokinesis 8 (DOCK8) Mutations in Three Unrelated Iranian Pedigrees Suspected with Hyper-IgE Syndrome.

Exome-first Approach Identified Novel Homozygous Dedicator of Cytokinesis 8 (DOCK8) Mutations in Three Unrelated Iranian Pedigrees Suspected with Hyper-IgE Syndrome. Iran J Allergy Asthma Immunol. 2020 Apr 16;19(2):193-199 Authors: Aghebati-Maleki A, Shahani T, Momen T, Alyasin S, Changi-Ashtiani M, Biglari A, Shahrooei M, Javanian AS, Amini S, Bossuyt X, Rokni-Zadeh H Abstract The prevalence of primary immunodeficiency (PID) is rather high in Iran compared to the world average, mainly due to the high rate of consanguineous marriage. Despite that, little genetic information is available about primary immunodeficiencies in Iran. Autosomal recessive hyper IgE syndrome (AR-HIES) is a severe type of immunodeficiency, mainly caused by mutations in the dedicator of cytokinesis 8 (DOCK8). Rapid and precise diagnoses of patients suffering from AR-HIES can help to manage the patients and reach properly the treatment decision. However, in regions with low financial resources and limited expertise, deep phenotyping is uncommon. Therefore, an exome-first approach is helpful to make a genetic-based diagnosis. In the present study, whole-exome sequencing (WES) was applied to detect causative mutations in three unrelated primary immunodeficient patients with poor clinical information. One of the cases was a deceased patient with suspected hyper IgE syndrome (HIES) whose parents were subjected to WES. As a result, three novel pathogenic variants wer...
Source: Iranian Journal of Allergy, Asthma and Immunology - Category: Allergy & Immunology Authors: Tags: Iran J Allergy Asthma Immunol Source Type: research