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Mutations in the non-coding RNA gene RNU4ATAC are associated with growth restriction and complications related to antibody deficiency. Here, we report that innate immune dysfunction is a previously unrecognised feature of this disorder. In particular, painful chilblain-like lesions are common in RNU4ATAC patients and are linked to dysregulated type I interferon signalling.
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http://dx.doi.org/10.1002/eji.202451518 | DOI Listing |
Eur J Immunol
May 2025
MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.
Mutations in the non-coding RNA gene RNU4ATAC are associated with growth restriction and complications related to antibody deficiency. Here, we report that innate immune dysfunction is a previously unrecognised feature of this disorder. In particular, painful chilblain-like lesions are common in RNU4ATAC patients and are linked to dysregulated type I interferon signalling.
View Article and Find Full Text PDFmedRxiv
January 2025
Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA.
RNA-sequencing has improved the diagnostic yield of individuals with rare diseases. Current analyses predominantly focus on identifying outliers in single genes that can be attributed to cis-acting variants within the gene locus. This approach overlooks causal variants with trans-acting effects on splicing transcriptome-wide, such as variants impacting spliceosome function.
View Article and Find Full Text PDFClin Genet
January 2025
Center of Medical Genetics, Antwerp University Hospital/University of Antwerp, Antwerp, Belgium.
ESC Heart Fail
October 2023
Advanced Heart Failure and Transplant, Memorial Healthcare System, Hollywood, FL, USA.
Roifman syndrome is a rare congenital disorder characterized by growth retardation, cognitive delay, spondyloepiphyseal dysplasia, immunodeficiency, and retinal dystrophy. However, very rarely, with only one case reported to date, a patient with Roifman syndrome may develop cardiomyopathy in their lifetime. We reported a case with underdiagnosed Roifman syndrome confirmed by whole genome sequencing, manifested as non-ischaemic cardiomyopathy, which has broadened the association between non-ischaemic cardiomyopathy and the genetic disorder Roifman syndrome.
View Article and Find Full Text PDFEye (Lond)
December 2023
Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, ON, Canada.
Purpose: To characterize the retinal phenotype in RNU4ATAC-associated Roifman syndrome.
Methods: Ten patients (including 8 males) with molecularly confirmed Roifman syndrome underwent detailed ophthalmologic evaluation including fundus imaging, fundus autofluorescence (FAF) imaging, spectral-domain optical coherence tomography (SD-OCT), and electroretinography (ERG). Six patients had follow-up eye exams.