Analysis of bulk and virus-specific CD8+ T cells reveals advanced differentiation of CD8+ T cells in patients with common variable immunodeficiency

Clin Immunol. 2011 Nov;141(2):177-86. doi: 10.1016/j.clim.2011.07.006. Epub 2011 Aug 5.

Abstract

Common variable immunodeficiency (CVID) is a heterogeneous antibody deficiency syndrome with alterations in T cell regulation and function in a subgroup of patients. We assessed phenotype and function of bulk and virus-specific CD8+ T cells of a cohort of 34 HLA-A2+ CVID patients by pentamer technology and flow cytometry in relationship to their immunological and clinical phenotypes. Bulk CD8+ T cells displayed a shift toward a more antigen experienced and activated differentiation state. The advanced differentiation pattern was mainly found in a subgroup of CVID patients with lymphadenopathy and granulomatous disease. This effect existed independently of the patients' CMV status even so CMV-associated immunosenescence was more evident in CVID patients than in CMV-positive immunocompetent controls. As the phenotype and function of virus-specific CD8+ T cells were normal in CVID the induction of antiviral immunity by prophylactic immunization appears to be a logical and desirable aim for this group of patients.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antigens, Viral / immunology
  • CD8-Positive T-Lymphocytes / immunology*
  • Cell Differentiation
  • Common Variable Immunodeficiency / immunology*
  • Common Variable Immunodeficiency / pathology
  • Cytomegalovirus / immunology*
  • Cytomegalovirus Infections / blood
  • Cytomegalovirus Infections / immunology
  • Epstein-Barr Virus Infections / blood
  • Epstein-Barr Virus Infections / immunology
  • Female
  • Granuloma / etiology
  • Granuloma / immunology
  • Herpesvirus 4, Human / immunology*
  • Histocompatibility Antigens Class I / immunology
  • Humans
  • Immunodominant Epitopes / immunology
  • Immunophenotyping
  • Lymphatic Diseases / etiology
  • Lymphatic Diseases / immunology
  • Male
  • Middle Aged
  • Oligopeptides / immunology
  • Orthomyxoviridae / immunology*
  • Peptide Fragments / immunology
  • Phosphoproteins / immunology
  • T-Cell Antigen Receptor Specificity*
  • T-Lymphocyte Subsets / immunology*
  • Viral Matrix Proteins / immunology
  • Viremia / immunology
  • Young Adult

Substances

  • Antigens, Viral
  • Histocompatibility Antigens Class I
  • Immunodominant Epitopes
  • Oligopeptides
  • Peptide Fragments
  • Phosphoproteins
  • Viral Matrix Proteins
  • cytomegalovirus matrix protein 65kDa
  • glycyl-leucyl-cysteinyl-threonyl-leucyl-valyl-alanyl-methionyl-leucine
  • influenza matrix peptide (58-66)