ArticleAllergy2025
Comprehensive αβ T-Cell Receptor Repertoire Analysis Reveals a Unique CD8+ TCR Landscape in DOCK8-Deficient Patients.
Article in Allergy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Comprehensive Profiling of T- and B-Cell Receptor Repertoires Demonstrates Impaired Developmental and Activation of Adaptive Immunity in DOCK8 Deficiency.Journal of clinical immunology · 2026Article
- DOCK8 in immune cells: roles and mechanisms.Frontiers in immunology · 2026Review
Corrections and comments
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Authors and funding
27 authors.
Funding
Abstract
backgroundDedicator of cytokinesis protein 8 (DOCK8) is a guanine nucleotide exchange factor highly expressed in, and critical for, the function of various innate and adaptive immune cells. DOCK8 deficiency leads to combined immunodeficiency characterized by susceptibility to infections, autoimmunity, and a severe Th2-type immune response. While dysfunction in various T cell subsets has been implicated in these phenotypes, a comprehensive analysis of the T-cell receptor (TCR) repertoire in these patients has not yet been documented. This study investigates the αβ TCR repertoire in DOCK8-deficient patients to identify features related to disease pathogenesis and explore the potential role of TCR repertoire alterations in disease development.
methodsWe compared immune repertoire profiles determined by high-throughput TCR sequencing of circulating CD4+ and CD8+ T cells from patients with DOCK8 deficiency (n = 10) to healthy controls (n = 7) and patients with ataxia-telangiectasia (AT) (n = 5).
resultsDifferent diversity analyses revealed a restricted TRA and TRB repertoire in both CD4+ and CD8+ T cells from DOCK8-deficient patients, with the restriction being more pronounced in CD8+ T cells. Skewed usage of individual variable (V) and joining (J) genes and potentially self-reactive CD8+ T cell clones, as determined by hydrophobicity and cysteine indices, were identified in DOCK8-deficient patients.
conclusionOur study represents the most comprehensive immune repertoire analysis in DOCK8 deficiency. The identification of a significantly restricted αβ TCR repertoire, along with the detection of potentially autoreactive clones, highlights the crucial role of immune repertoire profiling in elucidating the pathogenesis of DOCK8 deficiency.
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