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- W2040256929 abstract "<h3>Abstract</h3> Adenosine 5’ triphosphate (ATP) is an extracellular signaling molecule involved in numerous physiological and pathological processes. Yet, <i>in situ</i> characterization of the spatiotemporal dynamic of extracellular ATP is still challenging due to the lack of sensor with appropriate specificity, sensitivity and kinetics. Here we report the development of biosensors based on the fusion of cation permeable ATP receptors (P2X) to genetically encoded calcium sensors (GECI). By combining the features of P2X receptors with the high signal to noise ratio of GECIs, we generated ultrasensitive green and red fluorescent sniffers that detect nanomolar ATP concentrations <i>in situ</i> and also enable the tracking of P2X receptor activity. We provide the proof of concept that these sensors can dynamically track ATP release evoked by neuronal depolarization or by extracellular hypotonicity. Targeting these P2X-based biosensors to diverse cell types should advance our knowledge of extracellular ATP dynamics <i>in vivo</i>." @default.
- W2040256929 created "2016-06-24" @default.
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- W2040256929 date "1997-01-01" @default.
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- W2040256929 title "Neurogenetics and Primary Care" @default.
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- W2040256929 doi "https://doi.org/10.1212/wnl.48.1.2" @default.
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