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.
Copyright © 2011 Elsevier Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Antigens, Viral / immunology
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CD8-Positive T-Lymphocytes / immunology*
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Cell Differentiation
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Common Variable Immunodeficiency / immunology*
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Common Variable Immunodeficiency / pathology
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Cytomegalovirus / immunology*
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Cytomegalovirus Infections / blood
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Cytomegalovirus Infections / immunology
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Epstein-Barr Virus Infections / blood
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Epstein-Barr Virus Infections / immunology
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Female
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Granuloma / etiology
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Granuloma / immunology
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Herpesvirus 4, Human / immunology*
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Histocompatibility Antigens Class I / immunology
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Humans
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Immunodominant Epitopes / immunology
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Immunophenotyping
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Lymphatic Diseases / etiology
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Lymphatic Diseases / immunology
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Male
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Middle Aged
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Oligopeptides / immunology
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Orthomyxoviridae / immunology*
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Peptide Fragments / immunology
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Phosphoproteins / immunology
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T-Cell Antigen Receptor Specificity*
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T-Lymphocyte Subsets / immunology*
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Viral Matrix Proteins / immunology
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Viremia / immunology
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Young Adult
Substances
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Antigens, Viral
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Histocompatibility Antigens Class I
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Immunodominant Epitopes
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Oligopeptides
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Peptide Fragments
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Phosphoproteins
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Viral Matrix Proteins
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cytomegalovirus matrix protein 65kDa
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glycyl-leucyl-cysteinyl-threonyl-leucyl-valyl-alanyl-methionyl-leucine
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influenza matrix peptide (58-66)