Elsevier

Autoimmunity Reviews

Volume 7, Issue 4, February 2008, Pages 309-312
Autoimmunity Reviews

Common variable immune deficiency (CVID) presenting as an autoimmune disease: role of memory B cells

https://doi.org/10.1016/j.autrev.2007.11.024Get rights and content

Abstract

Common variable immunodeficiency (CVID) is a clinically heterogeneous disorder. Most often patients present with recurrent sinopulmonary infections, although it may present with autoimmune manifestations. Immune cytopenias, particularly thrombocytopenia and hemolytic anemia, are the most commonly observed. While the pathophysiology of CVID remains elusive, in many patients it may be due to an intrinsic B cell defect. Memory B cells (CD27+) in particular, have been noted to correlate with certain aspects of the disease. High numbers of IgM+ memory B cells appear to correlate with the presence of infections, whereas decreased numbers of switched memory B cells correlate with lower serum IgG levels and increased rates of autoimmune features. Because of these defects in the memory B cell compartment, there is a greater potential risk for infection and related complications. Review of the literature suggests that splenectomy should be avoided in patients with immune cytopenia and CVID and that serum immunoglobulins should be obtained in patients presenting with immune cytopenias to screen for CVID.

Section snippets

Take home messages

  • CVID is the most common symptomatic primary immunodeficiency

  • CVID may present with autoimmune disease, most commonly an immune cytopenia

  • Decreased numbers of IgM+ memory cells and anti-pneumococcal antibodies may correlate with increased risk for infections

  • Decreased numbers of switched memory cells may correlate best with autoimmunity

  • Splenectomy in CVID patients with immune cytopenias poses a potential greater risk of infection from encapsulated bacteria

  • Serum immunoglobulins should be checked

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