ArticleThe Journal of allergy and clinical immunology2023
Autoimmunity and immunodeficiency associated with monoallelic LIG4 mutations via haploinsufficiency.
Article in The Journal of allergy and clinical immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 16 citations in OpenAlex.
- Article
- Non-syndromic premature ovarian insufficiency associated with monoallelic LIG4 mutation via haploinsufficiency.Journal of ovarian research · 2026Article
- Comprehensive characterization of V(D)J recombination from long-read transcriptomic data with VDJcraft.bioRxiv : the preprint server for biology · 2026Article
- A novel SPI1 variant (c.566T > C (p.Ile189Thr)) possibly associated with autosomal dominant agammaglobulinemia in a Chinese girl.BMC pediatrics · 2026Article
- Inborn errors of immunity with DNA repair disorders: at the interface of immune deficiency, immune dysregulation, and malignancy.Frontiers in immunology · 2026Review
- Review
- 13q Deletion Syndrome Presenting with Lymphopenia Detected Through Newborn Screening for Primary Immunodeficiencies.International journal of molecular sciences · 2025Article
- SIV-specific neutralizing antibody induction following selection of a PI3K drive-attenuatedeLife · 2025Article
- Ultrarare Variants in DNA Damage Repair Genes in Pediatric Acute-Onset Neuropsychiatric Syndrome or Acute Behavioral Regression in Neurodevelopmental Disorders.Developmental neuroscience · 2025Article
- Case Report: Hypomorphic Ligase 4 deficiency - a paradigm of immunodysregulation.Frontiers in immunology · 2025Article
Corrections and comments
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Authors and funding
37 authors at 13 institutions in 7 countries.
Funding
Abstract
backgroundBiallelic mutations in LIG4 encoding DNA-ligase 4 cause a rare immunodeficiency syndrome manifesting as infant-onset life-threatening and/or opportunistic infections, skeletal malformations, radiosensitivity and neoplasia. LIG4 is pivotal during DNA repair and during V(D)J recombination as it performs the final DNA-break sealing step.
objectivesThis study explored whether monoallelic LIG4 missense mutations may underlie immunodeficiency and autoimmunity with autosomal dominant inheritance.
methodsExtensive flow-cytometric immune-phenotyping was performed. Rare variants of immune system genes were analyzed by whole exome sequencing. DNA repair functionality and T-cell-intrinsic DNA damage tolerance was tested with an ensemble of in vitro and in silico tools. Antigen-receptor diversity and autoimmune features were characterized by high-throughput sequencing and autoantibody arrays. Reconstitution of wild-type versus mutant LIG4 were performed in LIG4 knockout Jurkat T cells, and DNA damage tolerance was subsequently assessed.
resultsA novel heterozygous LIG4 loss-of-function mutation (p.R580Q), associated with a dominantly inherited familial immune-dysregulation consisting of autoimmune cytopenias, and in the index patient with lymphoproliferation, agammaglobulinemia, and adaptive immune cell infiltration into nonlymphoid organs. Immunophenotyping revealed reduced naive CD4
conclusionsThis study provides evidence that certain monoallelic LIG4 mutations may cause human immune dysregulation via haploinsufficiency.
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