Oligoclonal expansion of atypical Vdelta2(-) gammadelta T cells in Good's Syndrome
Journal Title
Nature Communications
Abstract
Good's syndrome is a rare adult-onset immunodeficiency characterized by thymoma, hypogammaglobulinemia, B-cell lymphopenia, and T-cell dysfunction. Despite well-characterized defects in conventional immune subsets, the impact of this disorder on unconventional T cells, including gammadelta T cells, remains largely unexplored. In this study, we analyse gammadelta T cells in 10 patients with Good's syndrome using immunophenotyping, functional assays, and T-cell receptor (TCR)delta repertoire profiling of peripheral blood and thymoma tissue. Our analyses reveal a pronounced expansion of the Vdelta2(-) gammadelta T-cell compartment, composed primarily of Vdelta1(+), Vdelta3(+) and the exceptionally rare Vdelta8(+) subsets. The Vdelta2(-) cells are characterized by an activated and effector phenotype and a private and oligoclonal TCRdelta repertoire. The thymoma tissue contains distinct clonotypes compared to circulation, suggesting clonal focusing in response to the tumor. Together, our findings show that gammadelta T-cell perturbations are integral characteristics of Good's syndrome and broaden our understanding of immune dysregulation in this acquired immunodeficiency.
Publisher
Springer Nature
Keywords
Humans; *Receptors, Antigen, T-Cell, gamma-delta/immunology/metabolism/genetics; *Thymoma/immunology/pathology; Female; Male; Adult; Middle Aged; Thymus Neoplasms/immunology; Immunophenotyping; *Agammaglobulinemia/immunology/genetics; *Immunologic Deficiency Syndromes/immunology/genetics; *T-Lymphocytes/immunology; *T-Lymphocyte Subsets/immunology; Lymphopenia/immunology
Research Division(s)
Immunology
PubMed ID
42277046
Open Access at Publisher's Site
https://doi.org/10.1038/s41467-026-74273-9
Terms of Use/Rights Notice
Refer to copyright notice on published article.


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