Paternal Uniparental Isodisomy of Chromosome 6 Causing a Complex Syndrome Including Complete IFN-gamma Receptor 1 Deficiency

Carolina Prando, Stephanie Boisson-Dupuis, Audrey V. Grant, Xiao-Fei Kong, Jacinta Bustamante, Jacqueline Feinberg, Ariane Chapgier, Yoann Rose, Lucile Janniere, Elena Rizzardi, Qiuping Zhang, Catherine M. Shanahan, Louis Viollet, Stanislas Lyonnet, Laurent Abel, Ezia Maria Ruga, Jean-Laurent Casanova

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

Mendelian susceptibility to mycobacterial disease (MSMD) is a rare primary immunodeficiency associated with clinical disease caused by weakly virulent mycobacterial species. Interferon gamma receptor 1 (IFN-gamma R1) deficiency is a genetic etiology of MSMD. We describe the clinical and genetic features of a 7-year-old Italian boy suffering from MSMD associated with a complex phenotype, including neonatal hyperglycemia, neuromuscular disease, and dysmorphic features. The child also developed necrotizing pneumonia caused by Rhodococcus equi. The child is homozygous for a nonsense mutation in exon 3 of IFNGR1 as a result of paternal uniparental disomy (UPD) of the entire chromosome 6. This is the first reported case of uniparental disomy resulting in a complex phenotype including MSMD. (C) 2010 Wiley-Liss, Inc.
Original languageEnglish
Pages (from-to)622 - 629
Number of pages8
JournalAmerican Journal of Medical Genetics. Part A
Volume152A
Issue number3
DOIs
Publication statusPublished - Mar 2010

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