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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Characterization of the T cell receptor repertoire in patients with common variable immunodeficiency: oligoclonal expansion of CD8(+) T cells.

Common variable immunodeficiency is characterized by an impairment in antibody production of at least two immunoglobulin isotypes, and abnormalities of both B and T cells have also been described. In this study, a profound alteration of the T cell receptor repertoire was noted, especially in CD8(+) T cells, in CVID patients when compared to a control group. However, the higher number of oligoclonally expanded populations seen in the patient group was not dependent on age, whereas in the control group an age-related accumulation of these populations was noted. Expansion of CD8(+) CD28(-) T cells in these patients is strongly correlated with T cell receptor repertoire restriction. Furthermore, analysis of cytokine production showed a statistically significant increase in IFN-gamma secretion in the patient group. Lastly, CD94 and perforin were expressed at increased frequencies on CD8(+) T cells in the patient group when compared to the control group. We speculate that these findings support the concept that CD8(+) T cells may play an important regulatory role in CVID.[1]

References

  1. Characterization of the T cell receptor repertoire in patients with common variable immunodeficiency: oligoclonal expansion of CD8(+) T cells. Serrano, D., Becker, K., Cunningham-Rundles, C., Mayer, L. Clin. Immunol. (2000) [Pubmed]
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