MISC

2012年8月

The rs150311303 polymorphism in FcγRIIa enhances IgG binding capacity

Scandinavian Journal of Immunology

76
2
開始ページ
167
終了ページ
174
記述言語
英語
掲載種別
DOI
10.1111/j.1365-3083.2012.02715.x

Fc gamma receptor (FcγR) provides an important link between humoral and cellular immune responses. FcγRIIa-H131R polymorphism has been associated with differential binding to IgG subclasses and susceptibility to severe malaria phenotypes among different populations in the malaria endemic world. In this study, the effect of FCGR2A gene polymorphisms on susceptibility to symptomatic malaria among Ghanaian cohort children was investigated. Blood samples from four hundred and 29 (429) healthy Ghanaian children were genotyped for FCGR2A polymorphisms by direct DNA sequencing. Attributable and relative risks to symptomatic malaria were calculated for the polymorphic variants. Two major FCGR2A polymorphisms, rs1801274A/G (FcγRIIa-H131R) and rs150311303 (FcγRIIa-ins170L), were identified in the study population, and assessment of their risks did not show significant association with susceptibility to symptomatic malaria. The functional significance of these polymorphisms was also examined by evaluating their binding abilities to IgG subclasses using flow cytometric analysis of HEK cells transfected with the FcγRIIa haplotype variants. The binding assay revealed the rs150311303, which was observed only among carriers of the FcγRIIa-131RR genotype for the rs1801274 to consistently enhance binding capacities to all IgG subclasses. Thus, of the three FcγRIIa haplotype variants observed in this study population, the FcγRIIa RL haplotype variant was observed to have the highest binding ability to IgG1, IgG3 and IgG4. © 2012 The Authors. Scandinavian Journal of Immunology © 2012 Blackwell Publishing Ltd.

Web of Science ® 被引用回数 : 5

リンク情報
DOI
https://doi.org/10.1111/j.1365-3083.2012.02715.x
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/22540264
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000306902300013&DestApp=WOS_CPL
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84864299233&origin=inward
ID情報
  • DOI : 10.1111/j.1365-3083.2012.02715.x
  • ISSN : 0300-9475
  • PubMed ID : 22540264
  • SCOPUS ID : 84864299233
  • Web of Science ID : WOS:000306902300013

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