ArticleJournal of clinical immunology2025
Genetics in a Danish Common Variable Immunodeficiency Cohort.
Article in Journal of clinical immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Genetic Heterogeneity of Inborn Errors of Immunity Revealed by Whole-Genome Sequencing: Insights from a Russian Patient Cohort.International journal of molecular sciences · 2026Article
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11 authors.
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Abstract
purposeGenetics of Common Variable Immunodeficiency (CVID) is complex and not fully elucidated. This study presents the clinical and genetic findings of a Danish CVID cohort and investigate whether initial genetic findings can be re-classified upon re-evaluation years later in time.
methodsFrom 2016 to 2021, individuals with CVID or a CVID-like-phenotype were examined using whole exome or whole genome sequencing in combination with comprehensive gene-panels. The results were re-evaluated to ensure up-to-date American College of Medical Genetics and Genomics (ACMG) classification after a median of 3.9 years. Further, a clinical-interpretation-algorithm is proposed.
resultsOf 69 enrolled individuals, 57 met the current ESID-CVID-criteria of whom 29 (51%) had a genetic find. In total 67 ACMG class 3 to 5 variants were detected in 39 different genes. Class 3 variants (variants of uncertain significance (VUS)) accounted for 81% in the initial analysis. Upon re-evaluation 17 of 54 (31%) of the originally reported VUS were re-classified to a different ACMG-class or excluded. The developed clinical-interpretation-algorithm demonstrated high interobserver-agreement. A “definite/probable” disease causing (or contributing) genetic variant was found in 19% of the CVID-cohort and a “possible” in 18%.
conclusionA genetic cause of CVID could be identified in a minority of CVID-individuals, whereas the majority had no or uncertain genetic findings. Re-evaluation of genetic results over time is recommended, though VUS remain a significant challenge in CVID-genetics. Therefore, continued research in both CVID-genetics and in non-genetic causes of CVID is needed.
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