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Afferent output in type II taste cells is mediated by ATP liberated through ion channels. It is widely accepted that pannexin 1 (Panx1) channels are responsible for ATP release in diverse cell types, including taste cells. While biophysical evidence implicates slow deactivation of ion channels following ATP release in taste cells, recombinant Panx1(More)
It was shown that physiological processes in taste buds (peripheral sensory gustatory organs in vertebrates) are realized with the involvement of several signal systems. In these structures, a number of “classical” neurotransmitters, including glutamate, serotonin, GABA, ATP, noradrenaline, and others, as well as receptors to these agents, were identified.(More)
Taste cells of type I express the polymodal receptor CASR previously found in a heterologous system to recognize bitter denatonium as a ligand. Here we studied responsiveness of the type I cells to a variety of sapid compounds using Ca2+ imaging. Taste cells were isolated from mouse CV papillae and loaded with Ca2+ dye Fluo-4. Type I cells were identified(More)
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