Chemical and electrical synaptic interactions among taste bud cells.

Chemical and electrical synaptic interactions among taste bud cells.
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DOI:
10.1016/j.cophys.2020.12.004
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发表时间:
2021-04
影响因子:
2.5
通讯作者:
Roper SD
Roper SD
中科院分区:
其他
文献类型:
--
作者:
Roper SD

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味觉细胞之间的化学突触是基于鱼类味蕾的电子显微镜首次提出的。随后,研究人员在鱼类、两栖动物和可能的哺乳动物味蕾中发现了大量的电耦合证据。舌片和分离的细胞制剂的发展允许详细调查细胞间的相互作用,化学和电气,在味蕾。5-羟色胺和ATP作为味觉神经递质的鉴定将注意力集中在味觉细胞之间的化学突触相互作用上。对电耦合的研究逐渐消失。Ca 2+成像、电生理学和分子生物学的研究结果表明,几种神经递质,包括ATP、5-羟色胺、GABA、乙酰胆碱和去甲肾上腺素,由味觉细胞分泌,并在味蕾中发挥旁分泌相互作用。大多数工作都是关于II型和III型味觉细胞之间的相互作用。本文简要回顾了味蕾细胞间相互作用的研究进展,从最初的超微结构观察到最近的光遗传学操作。
Chemical synapses between taste cells were first proposed based on electron microscopy of fish taste buds. Subsequently, researchers found considerable evidence for electrical coupling in fish, amphibian, and possibly mammalian taste buds. The development of lingual slice and isolated cell preparations allowed detailed investigations of cell-cell interactions, both chemical and electrical, in taste buds. The identification of serotonin and ATP as taste neurotransmitters focused attention onto chemical synaptic interactions between taste cells. Research on electrical coupling faded. Findings from Ca2+ imaging, electrophysiology, and molecular biology indicate that several neurotransmitters, including ATP, serotonin, GABA, acetylcholine, and norepinephrine, are secreted by taste cells and exert paracrine interactions in taste buds. Most work has been done on interactions between Type II and Type III taste cells. This brief review follows the trail of studies on cell-cell interactions in taste buds, from the initial ultrastructural observations to the most recent optogenetic manipulations.
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