Abstract
Fusion of vesicles with the plasma membrane and liberation of their contents is a multistep process involving several proteins. Correctly assigning the role of specific proteins and reactions in this cascade requires a measurement method with high temporal resolution. Patch-clamp recordings of cell membrane capacitance in combination with calcium measurements, calcium uncaging, and carbon-fiber amperometry allow for the accurate determination of vesicle pool sizes, their fusion kinetics, and their secreted oxidizable content. Here, we will describe this method in a model system for neurosecretion, the adrenal chromaffin cells, which secrete adrenaline.
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Houy, S., Martins, J.S., Mohrmann, R., Sørensen, J.B. (2021). Measurements of Exocytosis by Capacitance Recordings and Calcium Uncaging in Mouse Adrenal Chromaffin Cells. In: Niedergang, F., Vitale, N., Gasman, S. (eds) Exocytosis and Endocytosis. Methods in Molecular Biology, vol 2233. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1044-2_16
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DOI: https://doi.org/10.1007/978-1-0716-1044-2_16
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