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  • Title: Flowcytometric phenotyping of common variable immunodeficiency.
    Author: Warnatz K, Schlesier M.
    Journal: Cytometry B Clin Cytom; 2008 Sep; 74(5):261-71. PubMed ID: 18561200.
    Abstract:
    BACKGROUND: Common variable immunodeficiency (CVID) comprises heterogeneous antibody deficiency disorders. To classify this heterogeneous syndrome, clinical as well as immunologic parameters have been combined. Flowcytometric analysis of circulating T and B lymphocyte subpopulations has become an important tool in this endeavor of disease classification. METHODS: Multicolor flowcytometric analysis of circulating lymphocytes. RESULTS: The flowcytometric analysis of B and T cell subpopulations in the blood of CVID patients has contributed significantly to the identification of separate groups within the CVID population. In addition, the flowcytometric analysis of the inducible costimulator on activated T cells, CD19 and BAFF-R on B cells are valid screening methods for three of the four known genetic defects associated with CVID. Only TACI deficiency can not be sufficiently detected by flowcytometric measures. CONCLUSIONS: Flowcytometric classification of patients with CVID has become a standard procedure during the diagnostic work up. This should be performed according to common guidelines to guarantee world wide comparability between different immunodeficiency centers.
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