ArticleThe Journal of physiology2013
Taurine activates delayed rectifier Kv channels via a metabotropic pathway in retinal neurons.
Article in The Journal of physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 14 citations in OpenAlex.
- Taming fatty liver: can taurine combat metabolic dysfunction in MASLD?Cell communication and signaling : CCS · 2025Review
- Maternal taurine as a modulator of ClFrontiers in cellular neuroscience · 2023Review
- Activity-dependent endogenous taurine release facilitates excitatory neurotransmission in the neocortical marginal zone of neonatal rats.Frontiers in cellular neuroscience · 2014Article
- Neuroprotective Mechanisms of Taurine against Ischemic Stroke.Brain sciences · 2013Article
- Deletion of TRAAK potassium channel affects brain metabolism and protects against ischemia.PloS one · 2012Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
Taurine is one of the most abundant amino acids in the retina, throughout the CNS, and in heart and muscle cells. In keeping with its broad tissue distribution, taurine serves as a modulator of numerous basic processes, such as enzyme activity, cell development, myocardial function and cytoprotection. Despite this multitude of functional roles, the precise mechanism underlying taurine's actions has not yet been identified. In this study we report findings that indicate a novel role for taurine in the regulation of voltage-gated delayed rectifier potassium (K(V)) channels in retinal neurons by means of a metabotropic receptor pathway. The metabotropic taurine response was insensitive to the Cl(-) channel blockers, picrotoxin and strychnine, but it was inhibited by a specific serotonin 5-HT(2A) receptor antagonist, MDL11939. Moreover, we found that taurine enhanced K(V) channels via intracellular protein kinase C-mediated pathways. When 5-HT(2A) receptors were expressed in human embryonic kidney cells, taurine and AL34662, a non-specific 5-HT(2) receptor activator, produced a similar regulation of K(IR) channels. In sum, this study provides new evidence that taurine activates a serotonin system, apparently via 5-HT(2A) receptors and related intracellular pathways.
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