Journal
PURINERGIC SIGNALLING
Volume 12, Issue 3, Pages 411-426Publisher
SPRINGER
DOI: 10.1007/s11302-016-9509-4
Keywords
Guanine-based purines; Guanosine; Neuroprotection; Neurotrophic; Purinergic system
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Funding
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) of the Brazilian Federal Government [403120/2012-8]
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Guanosine is a purine nucleoside thought to have neuroprotective properties. It is released in the brain under physiological conditions and even more during pathological events, reducing neuroinflammation, oxidative stress, and excitotoxicity, as well as exerting trophic effects in neuronal and glial cells. In agreement, guanosine was shown to be protective in several in vitro and/or in vivo experimental models of central nervous system (CNS) diseases including ischemic stroke, Alzheimer's disease, Parkinson's disease, spinal cord injury, nociception, and depression. The mechanisms underlying the neurobiological properties of guanosine seem to involve the activation of several intracellular signaling pathways and a close interaction with the adenosinergic system, with a consequent stimulation of neuroprotective and regenerative processes in the CNS. Within this context, the present review will provide an overview of the current literature on the effects of guanosine in the CNS. The elucidation of the complex signaling events underlying the biochemical and cellular effects of this nucleoside may further establish guanosine as a potential therapeutic target for the treatment of several neuropathologies.
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