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Glycine receptors and glycine transporters: targets for novel analgesics?

Type of publication Peer-reviewed
Publikationsform Review article (peer-reviewed)
Author Zeilhofer Hanns Ulrich, Acuña Mario A, Gingras Jacinthe, Yévenes Gonzalo E,
Project Dorsal Horn Neuronal Circuits Processing Itch
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Review article (peer-reviewed)

Journal Cellular and molecular life sciences : CMLS
Title of proceedings Cellular and molecular life sciences : CMLS
DOI 10.1007/s00018-017-2622-x

Open Access

Abstract

Glycinergic neurotransmission has long been known for its role in spinal motor control. During the last two decades, additional functions have become increasingly recognized-among them is a critical contribution to spinal pain processing. Studies in rodent pain models provide proof-of-concept evidence that enhancing inhibitory glycinergic neurotransmission reduces chronic pain symptoms. Apparent strategies for pharmacological intervention include positive allosteric modulators of glycine receptors and modulators or inhibitors of the glial and neuronal glycine transporters GlyT1 and GlyT2. These prospects have led to drug discovery efforts in academia and in industry aiming at compounds that target glycinergic neurotransmission with high specificity. Available data show promising analgesic efficacy. Less is currently known about potential unwanted effects but the presence of glycinergic innervation in CNS areas outside the nociceptive system prompts for a careful evaluation not only of motor function, but also of potential respiratory impairment and addictive properties.
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