ICOS deficiency in patients with common variable immunodeficiency

Common variable immunodeficiency (CVID) is the most frequent clinically significant primary antibody deficiency in man, predisposing to recurrent bacterial infections. Recently, we showed that the homozygous loss of the inducible costimulator (ICOS) on activated T cells may result in an adult onset...

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Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 113(2004), 3 vom: 12. Dez., Seite 234-40
1. Verfasser: Salzer, Ulrich (VerfasserIn)
Weitere Verfasser: Maul-Pavicic, Andrea, Cunningham-Rundles, Charlotte, Urschel, Simon, Belohradsky, Bernd H, Litzman, Jiri, Holm, Are, Franco, José Luis, Plebani, Alessandro, Hammarstrom, Lennart, Skrabl, Andrea, Schwinger, Wolfgang, Grimbacher, Bodo
Format: Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Antigens, Differentiation, T-Lymphocyte ICOS protein, human Immunoglobulins Inducible T-Cell Co-Stimulator Protein
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245 1 0 |a ICOS deficiency in patients with common variable immunodeficiency 
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520 |a Common variable immunodeficiency (CVID) is the most frequent clinically significant primary antibody deficiency in man, predisposing to recurrent bacterial infections. Recently, we showed that the homozygous loss of the inducible costimulator (ICOS) on activated T cells may result in an adult onset form of CVID with autosomal recessive inheritance (AR-CVID). We screened 181 sporadic CVID patients and 13 CVID patients from nine families with AR-CVID for mutations in ICOS by genomic DNA sequencing. In the AR-CVID families, the genomic integrity of the ligand for ICOS (ICOS-L) was also evaluated. In two of the nine AR-CVID families, we identified five individuals with ICOS deficiency, carrying the identical large genomic deletion of ICOS as previously described. In the remaining seven AR-CVID families, we subsequently sequenced the coding region of the ICOS ligand but found no mutations. The incidence of ICOS deficiency among patients with CVID is less than 5%. Worldwide, there are now a total of nine patients diagnosed with ICOS deficiency most likely due to a common founder. ICOS-L deficiency could not be identified in families with AR-CVID 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, P.H.S. 
650 7 |a Antigens, Differentiation, T-Lymphocyte  |2 NLM 
650 7 |a ICOS protein, human  |2 NLM 
650 7 |a Immunoglobulins  |2 NLM 
650 7 |a Inducible T-Cell Co-Stimulator Protein  |2 NLM 
700 1 |a Maul-Pavicic, Andrea  |e verfasserin  |4 aut 
700 1 |a Cunningham-Rundles, Charlotte  |e verfasserin  |4 aut 
700 1 |a Urschel, Simon  |e verfasserin  |4 aut 
700 1 |a Belohradsky, Bernd H  |e verfasserin  |4 aut 
700 1 |a Litzman, Jiri  |e verfasserin  |4 aut 
700 1 |a Holm, Are  |e verfasserin  |4 aut 
700 1 |a Franco, José Luis  |e verfasserin  |4 aut 
700 1 |a Plebani, Alessandro  |e verfasserin  |4 aut 
700 1 |a Hammarstrom, Lennart  |e verfasserin  |4 aut 
700 1 |a Skrabl, Andrea  |e verfasserin  |4 aut 
700 1 |a Schwinger, Wolfgang  |e verfasserin  |4 aut 
700 1 |a Grimbacher, Bodo  |e verfasserin  |4 aut 
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