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ATP-gated P2X3 receptors are specialised sensors of the extracellular environment

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P2X3 receptors are ion channels expressed by autonomic and sensory nerves and specialised in transducing extracellular ATP signals. Structural data, together with functional and biochemical studies, suggest that conformational changes of P2X3 receptors upon agonist binding influence downstream intracellular molecular mechanisms relevant for neuronal responses. Activity of P2X3 receptors is implicated in pain, itch, asthma, cardiovascular dysfunction and other pathologies. The study of these receptors has therefore a large potential in the field of drug development and interdisciplinary efforts could clarify molecular mechanisms controlling P2X3 receptor function in different physiological or pathological contexts.




Fabbretti, E. (2017). ATP-gated P2X3 receptors are specialised sensors of the extracellular environment. In Advances in Experimental Medicine and Biology (Vol. 1051, pp. 7–16). Springer New York LLC.

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