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Clin Immunol. 2009 Apr;131(1):50-9. doi: 10.1016/j.clim.2008.11.008. Epub 2009 Jan 21.

Memory B-cells in healthy and antibody-deficient children.

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1
Department of Pediatric Oncology, Hematology and Clinical Immunology, Centre for Child and Adolescent Health, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany.

Erratum in

  • Clin Immunol. 2009 Nov;133(2):285.

Abstract

Recently it has become clear that a reduction of IgD-CD27+ memory B-cells in adult CVID patients correlates with clinical aspects of the disease. However, little is known about B-cell dysregulation in pediatric antibody deficiency. Reference values are essential for the interpretation of B-cell subpopulations in children. We present the clinical and immunophenotypical characterization of 16 children and adolescents with CVID and hypogammaglobulinemia. Reference values for IgD+CD27-, IgD+CD27+ and IgD-CD27+ B-cells in healthy children were established for five age groups. In healthy controls we found a continuous increase in IgD-CD27+ B-cell percentage with age from 1.35-5% of B-cells in the second year of life to 4.1-18.7% in adolescents. Interestingly, in 12/14 antibody-deficient patients memory B-cells are significantly below the age-related 10th percentile. We conclude that the reduction of memory B-cells is a useful additional marker for the detection of children with CVID hypogammaglobulinemia and may contribute to the early presentation.

PMID:
19162556
DOI:
10.1016/j.clim.2008.11.008
[Indexed for MEDLINE]
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