Cytokine production from stimulated whole blood cultures in rheumatoid arthritis patients treated with various TNF blocking agents
Calin Popa1,2, Pilar Barrera2, Leo A. B. Joosten1,2,3, Piet L. C. M. van Riel2, Bart-Jan Kullberg1,3, Jos W. M. van der Meer1,3, Mihai G. Netea1,3
European Cytokine Network, Vol.20, No.2, pp. 88-83, 2009, DOI:10.1684/ecn.2009.0150
Abstract Infectious complications are not rare in rheumatoid arthritis (RA), and the susceptibility to infec-tions
is increased during treatment with TNF blocking agents. As a possible mechanism contributing to that, we
assessed the modulation of cytokine production induced by TNF neutralization. Methods. Whole blood cultures
from six healthy volunteers and 13 RA patients starting therapy with either adalimumab (n = 7) or etanercept
(n = 6) were stimulated with heat-killed Salmonella typhimurium, Staphylococcus aureus or with S. typhimurium
lipopolysaccharide (LPS). The production of interleukin (IL)-1β, IL-6, IL10, IL-17, TNF, IL-8 and IFN-γ was
measured by specific immunoassays. Results. Stimulation … More >