Ambient Temperature Affects the Temperature Threshold for TRPM8 Activation through Interaction of Phosphatidylinositol 4,5-Bisphosphate

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Ambient temperature affects the temperature threshold for TRPM8 activation through interaction of phosphatidylinositol 4,5-bisphosphate.

Cold sensation is an important and fundamental sense for animals and it is known to be affected by ambient temperature. Transient Receptor Potential Melastatin 8 (TRPM8), a nonselective cation channel expressed in a subset of peripheral afferent fibers, acts as a cold sensor, having an activation threshold of ∼28°C. Although the cold temperature threshold of TRPM8 is affected by menthol or pH, ...

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Functional control of cold- and menthol-sensitive TRPM8 ion channels by phosphatidylinositol 4,5-bisphosphate.

Cold is detected by a small subpopulation of peripheral thermoreceptors. TRPM8, a cloned menthol- and cold-sensitive ion channel, has been suggested to mediate cold transduction in the innocuous range. The channel shows a robust response in whole-cell recordings but exhibits markedly reduced activity in excised membrane patches. Here we report that phosphatidylinositol 4,5-bisphosphate (PIP2) i...

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ژورنال

عنوان ژورنال: Journal of Neuroscience

سال: 2013

ISSN: 0270-6474,1529-2401

DOI: 10.1523/jneurosci.5672-12.2013