Adenosine receptor A2a blockade by caffeine increases IFN–gamma production in Th1 cells from patients with rheumatoid arthritis. - Gloyer, L; Golumba-Nagy, V; Meyer, A; Yan, S; Schiller, J; Breuninger, M; Jochimsen, D; Kofler, DM (Scandinavian Journal of Rheumatology, 2022)