PMID- 17764583 OWN - NLM STAT- MEDLINE DCOM- 20080403 LR - 20181113 IS - 1478-6362 (Electronic) IS - 1478-6354 (Print) IS - 1478-6354 (Linking) VI - 9 IP - 4 DP - 2007 TI - Activating and inhibitory Fc gamma receptors in rheumatoid arthritis: from treatment to targeted therapies. PG - 106 AB - Fc gamma receptors (Fc gammaRs) bind the constant Fc region of IgG molecules. IgG/antigen-containing immune complexes elicit a variety of effector functions in cells that express activating Fc gammaRs. Because activating Fc gammaRs are present on cells from the innate immune system, such as dendritic cells, monocytes/macrophages and granulocytes, these IgG receptors form a crucial link between the innate and the acquired immune systems. Recently, the ability to detect the inhibitory Fc gammaRIIb on cells has indicated an imbalance between activating and inhibitory Fc gammaRs in rheumatoid arthritis. This progress offers an opportunity to study modulation of Fc gammaR balance and could stimulate development of Fc gammaR-directed immunotherapy. FAU - van Roon, Joel A G AU - van Roon JA LA - eng PT - Comment PT - Editorial PL - England TA - Arthritis Res Ther JT - Arthritis research & therapy JID - 101154438 RN - 0 (Receptors, IgG) SB - IM CON - Arthritis Res Ther. 2007;9(3):R51. PMID: 17521421 MH - Arthritis, Rheumatoid/drug therapy/immunology/*metabolism MH - Dendritic Cells/immunology/metabolism MH - Drug Delivery Systems MH - Granulocytes/immunology/metabolism MH - Humans MH - Immunotherapy MH - Macrophages/immunology/metabolism MH - Monocytes/immunology/metabolism MH - Receptors, IgG/immunology/*metabolism PMC - PMC2206374 EDAT- 2007/09/04 09:00 MHDA- 2008/04/04 09:00 PMCR- 2007/08/20 CRDT- 2007/09/04 09:00 PHST- 2007/09/04 09:00 [pubmed] PHST- 2008/04/04 09:00 [medline] PHST- 2007/09/04 09:00 [entrez] PHST- 2007/08/20 00:00 [pmc-release] AID - ar2224 [pii] AID - 10.1186/ar2224 [doi] PST - ppublish SO - Arthritis Res Ther. 2007;9(4):106. doi: 10.1186/ar2224.