Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studies
The biological activities of human IgG antibodies predominantly rely on a family of receptors for the Fc portion of IgG, FcγRs: FcγRI, FcγRIIA, FcγRIIB, FcγRIIC, FcγRIIIA, FcγRIIIB, FcRL5, FcRn and TRIM21. All FcγRs bind IgG at the cell surface, except FcRn and TRIM21 that bind IgG once internalized...
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doaj-5fe3eea1e5754066bf7fabaaeb17e4932020-11-24T23:12:21ZengFrontiers Media S.A.Frontiers in Immunology1664-32242014-05-01510.3389/fimmu.2014.0025489310Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studiesCaitlin Margaret Gillis0Caitlin Margaret Gillis1Aurélie eGouel-Chéron2Aurélie eGouel-Chéron3Aurélie eGouel-Chéron4Friederike eJönsson5Friederike eJönsson6Pierre eBruhns7Pierre eBruhns8Institut PasteurINSERM U760Institut PasteurINSERM U760Hospital of Bichat-Claude Bernard, Public Assistance-Hospitals of ParisInstitut PasteurINSERM U760Institut PasteurINSERM U760The biological activities of human IgG antibodies predominantly rely on a family of receptors for the Fc portion of IgG, FcγRs: FcγRI, FcγRIIA, FcγRIIB, FcγRIIC, FcγRIIIA, FcγRIIIB, FcRL5, FcRn and TRIM21. All FcγRs bind IgG at the cell surface, except FcRn and TRIM21 that bind IgG once internalized. The affinity of FcγRs for IgG is determined by polymorphisms of human FcγRs and ranges from 2x10e4 M-1 to 8x10e7 M-1. The biological functions of FcγRs extend from cellular activation or inhibition, IgG-internalization/endocytosis/phagocytosis to IgG transport and recycling.This review focuses on human FcγRs and intends to present an overview of the current understanding of how these receptors may contribute to various pathologies. It will define FcγRs and their polymorphic variants, their affinity for human IgG subclasses, and review the associations found between FcγR polymorphisms and human pathologies. It will also describe the human FcγR-transgenic mice that have been used to study the role of these receptors in autoimmune, inflammatory and allergic disease models.http://journal.frontiersin.org/Journal/10.3389/fimmu.2014.00254/fullAnaphylaxisAutoimmune DiseasesIgG receptorsTransgenic miceGenetic polymorphisms and disease association.human IgG receptors |
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language |
English |
format |
Article |
sources |
DOAJ |
author |
Caitlin Margaret Gillis Caitlin Margaret Gillis Aurélie eGouel-Chéron Aurélie eGouel-Chéron Aurélie eGouel-Chéron Friederike eJönsson Friederike eJönsson Pierre eBruhns Pierre eBruhns |
spellingShingle |
Caitlin Margaret Gillis Caitlin Margaret Gillis Aurélie eGouel-Chéron Aurélie eGouel-Chéron Aurélie eGouel-Chéron Friederike eJönsson Friederike eJönsson Pierre eBruhns Pierre eBruhns Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studies Frontiers in Immunology Anaphylaxis Autoimmune Diseases IgG receptors Transgenic mice Genetic polymorphisms and disease association. human IgG receptors |
author_facet |
Caitlin Margaret Gillis Caitlin Margaret Gillis Aurélie eGouel-Chéron Aurélie eGouel-Chéron Aurélie eGouel-Chéron Friederike eJönsson Friederike eJönsson Pierre eBruhns Pierre eBruhns |
author_sort |
Caitlin Margaret Gillis |
title |
Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studies |
title_short |
Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studies |
title_full |
Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studies |
title_fullStr |
Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studies |
title_full_unstemmed |
Contribution of human FcγRs to disease with evidence from human polymorphisms and transgenic animal studies |
title_sort |
contribution of human fcγrs to disease with evidence from human polymorphisms and transgenic animal studies |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Immunology |
issn |
1664-3224 |
publishDate |
2014-05-01 |
description |
The biological activities of human IgG antibodies predominantly rely on a family of receptors for the Fc portion of IgG, FcγRs: FcγRI, FcγRIIA, FcγRIIB, FcγRIIC, FcγRIIIA, FcγRIIIB, FcRL5, FcRn and TRIM21. All FcγRs bind IgG at the cell surface, except FcRn and TRIM21 that bind IgG once internalized. The affinity of FcγRs for IgG is determined by polymorphisms of human FcγRs and ranges from 2x10e4 M-1 to 8x10e7 M-1. The biological functions of FcγRs extend from cellular activation or inhibition, IgG-internalization/endocytosis/phagocytosis to IgG transport and recycling.This review focuses on human FcγRs and intends to present an overview of the current understanding of how these receptors may contribute to various pathologies. It will define FcγRs and their polymorphic variants, their affinity for human IgG subclasses, and review the associations found between FcγR polymorphisms and human pathologies. It will also describe the human FcγR-transgenic mice that have been used to study the role of these receptors in autoimmune, inflammatory and allergic disease models. |
topic |
Anaphylaxis Autoimmune Diseases IgG receptors Transgenic mice Genetic polymorphisms and disease association. human IgG receptors |
url |
http://journal.frontiersin.org/Journal/10.3389/fimmu.2014.00254/full |
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