Intravenous Immunoglobulin Controls Th17 Cell-Mediated Osteoclastogenesis

Uses of intravenous immunoglobulin

Adjuvant high dose IVIgs are being used increasingly in a range of immune-mediated and auto-immune diseases. Although numerous immunomodulatory mechanisms have been suggested, the exact mechanisms of action are poorly understood. The efficacy of IVIg in certain diseases has been proven in clinical trials, in so far as IVIg is approved as the therapy of choice for Kawasaki syndrome and idiopathi...

N-acetyl-l-cysteine controls osteoclastogenesis through regulating Th17 differentiation and RANKL in rheumatoid arthritis.

Background/Aims This study aimed to determine the regulatory role of N-acetyl-l-cysteine (NAC), an antioxidant, in interleukin 17 (IL-17)-induced osteoclast differentiation in rheumatoid arthritis (RA). Methods After RA synovial fibroblasts were stimulated by IL-17, the expression and production of receptor activator of nuclear factor κ-B ligand (RANKL) was determined by real-time polymerase ...

Th17 cell function and Th17-mediated autoimmune disease

© 2008 Pappu et al. The Rockefeller University Press $30.00 J. Exp. Med. Vol. 205 No. 5 1049-1062 www.jem.org/cgi/doi/ 1049 10.1084/jem.20071364 After activation, CD4 + Th cells diff erentiate into distinct eff ector subsets that are characterized by their unique cytokine expression and immunoregulatory function ( 1, 2 ). A novel Th subset — termed Th IL-17 , Th17, or infl ammatory Th — has bee...

High-dose intravenous immunoglobulin modifies complement-mediated in vivo clearance.

The mechanism of effect of high-dose intravenous immunoglobulin (IVIG) therapy in immune cytopenias is incompletely known. One of the leading theories ascribes the short-term effects of IVIG to the competition of infused IVIG for Fc receptors, thereby inhibiting IgG-mediated clearance. Using a system independent of IgG-Fc receptor interactions, we examined another potential mechanism of IVIG ac...

Mechanism of action of intravenous immunoglobulin in immune-mediated cytopenias.