IL-6 treatment increases the survival of retinal ganglion cells in vitro: The role of adenosine A1 receptor

AbstractIL-6 is a pleiotropic cytokine classically denominated pro-inflammatory. It has been already demonstrated that IL-6 can increase the survival of retinal ganglion cells (RGC) in culture. In this work, we show that the trophic effect of IL-6 is mediated by adenosine receptor (A1R) activation. The neutralization of extracellular BDNF abolished the IL-6 effect and the treatment with IL-6 and CHA (an agonist of A1R) modulated BDNF expression as well as pCREB and pTrkB levels