Interleukin-10 Production in Response to Amyloid-beta Differs between Slow and Fast Decliners in Patients with Alzheimer's Disease
Résumé
We investigated IL-10 and IL-6 production in amyloid-beta (A beta) stimulated peripheral blood mononuclear cells (PBMCs) in twenty Alzheimer's disease (AD) patients with slow progression, eleven with fast progression, and twenty age-matched controls. Promoter polymorphisms in IL-10 (position -592, -819, -1082), IL-6 (-174), transforming growth factor-beta 1 (TGF-beta 1) (-10, -25), interferon-beta (IFN-gamma) (-874), and tumor necrosis factor-alpha (TNF-alpha) (-308) genes were analyzed. IL-10 production after A beta stimulation was high in PBMCs from slow decliners and almost completely abrogated in fast decliners. Association between AA IFN-gamma low-producing genotype and fast progression was demonstrated. Investigations in a larger sample will clarify these findings.