Related Experiment Video
Updated: Jul 10, 2026

Paired Cisterna Magna Nanoinjection and Laser Speckle Contrast Imaging Assay to Study Cerebral Blood Flow Regulation In Vivo
Published on: July 8, 2025
Interleukin-6 upregulates neuronal adenosine A1 receptors: implications for neuromodulation and neuroprotection
Knut Biber1, A Pinto-Duarte, M C Wittendorp
1Department of Medical Physiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands. k.p.h.biber@med.umcg.nl
Abstract:
The immunological response in the brain is crucial to overcome neuropathological events. Some inflammatory mediators, such as the immunoregulatory cytokine interleukin-6 (IL-6) affect neuromodulation and may also play protective roles against various noxious conditions. However, the fundamental mechanisms underlying the long-term effects of IL-6 in the brain remain unclear. We now report that IL-6 increases the expression and function of the neuronal adenosine A1 receptor, with relevant consequences to synaptic transmission and neuroprotection. IL-6-induced amplification of A1 receptor function enhances the responses to readily released adenosine during hypoxia, enables neuronal rescue from glutamate-induced death, and protects animals from chemically induced convulsing seizures. Taken together, these results suggest that IL-6 minimizes the consequences of excitotoxic episodes on brain function through the enhancement of endogenous adenosinergic signaling.
Related Concept Videos
Drugs Affecting Neurotransmitter Synthesis
Ligand-Gated Ion Channel Receptor: Gating Mechanism
Drugs Affecting Neurotransmitter Release or Uptake
Neural Regulation
Indirect-Acting Cholinergic Agonists: Pharmacological Actions
At the neuromuscular junction, these agents work by inhibiting the breakdown of acetylcholine, allowing it to remain bound to the receptor and bind to nearby receptors. This process leads to repetitive firing of the endplate, causing muscle...
Neurotransmitters