Memory B cells in common variable immunodeficiency : clinical associations and sex differences

Common variable immunodeficiency (CVID) is a heterogeneous syndrome characterized by impaired antibody responses, recurrent infections, inflammatory, autoimmune and malignancy-related conditions. We evaluated the relationship between memory B cell phenotype, sex, age at diagnosis, immunologic and cl...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 128(2008), 3 vom: 01. Sept., Seite 314-21
1. Verfasser: Sánchez-Ramón, Silvia (VerfasserIn)
Weitere Verfasser: Radigan, Lin, Yu, Joyce E, Bard, Susan, Cunningham-Rundles, Charlotte
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Antibodies Immunoglobulin A Immunoglobulin G Pneumococcal Vaccines
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520 |a Common variable immunodeficiency (CVID) is a heterogeneous syndrome characterized by impaired antibody responses, recurrent infections, inflammatory, autoimmune and malignancy-related conditions. We evaluated the relationship between memory B cell phenotype, sex, age at diagnosis, immunologic and clinical conditions in 105 CVID subjects from one medical center. Reduced numbers of switched memory B cells (cutoff <or=0.55% of B cells) were an independent risk factor of granulomas, autoimmune diseases and splenomegaly (p<0.001). Not previously noted, CVID females had significantly more switched memory cells (p=0.007) than males. Splenectomized subjects did not have fewer IgM memory B cells and these numbers were not related to the development of lung disease, as previously proposed. Lower baseline serum IgG was an independent predictor of pneumonia (p=0.007) and severe infections (p=0.001). We conclude that outcomes in CVID depend on an interplay of factors including sex, numbers of switched memory B cells, and baseline serum IgG and IgA levels 
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700 1 |a Yu, Joyce E  |e verfasserin  |4 aut 
700 1 |a Bard, Susan  |e verfasserin  |4 aut 
700 1 |a Cunningham-Rundles, Charlotte  |e verfasserin  |4 aut 
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