Proinflammatory cytokines seem to be only partly involved in the pathophysiology of CRPS1, as indicated by the lack of coherence between TNF-alpha and IL-6 levels and the signs and symptoms of inflammation and disease duration.
CB2-receptor stimulation attenuates TNF-alpha-induced human endothelial cell activation, transendothelial migration of monocytes, and monocyte-endothelial adhesion.
These results are in agreement with the hypothesis that the synthesis of adipose tissue TNFalpha and leptin could induce the production of interleukin-6, CRP, and other acute-phase reactants, thus contributing to the maintenance of chronic low-grade inflammation state involved in the progression of obesity and its associated comorbidities.
Overall, our results clearly demonstrate that adenosine selectively suppresses TNF-induced NF-kappaB activation, which may contribute to its role in suppression of inflammation and of the immune system.
We found that blockade of TNF-alpha reduced inflammation and intestinal damage in amebic infection, while inhibition of IL-1 reduced cytokine production but had less marked effects on inflammation and disease.