ArticleJournal of clinical immunology2025
DOCK2 Deficiency and GATA2 Haploinsufficiency Can Underlie Critical Coronavirus Disease 2019 (COVID-19) Pneumonia.
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 5 papers.
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Who cites it
5 citing papers in PubMed.
- Functional Annotation of GWAS Loci Using Public Transcriptome and Epigenome Datasets Reveals Non-Coding Genes and Regulatory Elements Which May Contribute to BMI.International journal of molecular sciences · 2026Article
- Association of the Dedicator of Cytokinesis 2 (DOCK2) Gene Polymorphisms with COVID-19 and Plasma LDH, AST, ALT, and Ferritin Levels.Biomolecules · 2026Article
- Bi-allelic TPP1 variants in neuronal ceroid lipofuscinosis 2: clinical findings from an Iranian cohort of 20 patients, founder effect, and in silico analyses.Human genetics · 2026Article
- Zygosity-Dependent Phenotypic Spectrum ofHuman mutation · 2026Article
- Hemophagocytic Lymphohistiocytosis Gene Variants in Severe COVID-19 Cytokine Storm Syndrome.Viruses · 2025Article
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Authors and funding
26 authors.
Funding
Abstract
The life-threatening coronavirus disease 2019 (COVID-19) affects about 1 in 1,000 healthy people under 50 without underlying conditions. Among patients with critical COVID-19 pneumonia, rare germline variants at genes controlling type I IFN immunity have been reported in up to 5% of patients. Causal etiologies in 80-85% of cases are still unknown. We analyzed two families with hypoxemic COVID-19 pneumonia for known single-gene inborn errors of immunity. In Family 1, two siblings with critical COVID-19 were homozygous for a DOCK2 variant, c.3624+5G>A. DOCK2 deficiency is a known T-cell disorder underlying severe viral diseases. The variant resulted in skipping exon 35, which was predicted to produce a frameshift truncated protein (p.L1157Ifs*12). The proband showed markedly decreased blood CD4 T-helper cell counts, impaired T lymphocyte transformation test, and increased serum IgG, IgA, and IgE levels, as documented in other DOCK2-deficient patients. In Family 2, the proband had lethal COVID-19 and HPV-2-associated multiple recalcitrant warts. She was heterozygous for a deletion in GATA2:c.1075_1102del28, p.W360Sfs*18. GATA2 haploinsufficiency is a known cause of severe viral diseases due to a lack of plasmacytoid dendritic cell (pDC) development. The proband had monocytopenia and a lack of circulating pDCs, as reported in other patients with GATA2 haploinsufficiency. Overall, both DOCK2 deficiency and GATA2 haploinsufficiency are associated with critical and often fatal COVID-19 pneumonia.
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