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  • High-resolution membrane capacitance measurements for the study of exocytosis and endocytosis
    Rituper, Boštjan ...
    In order to understand exocytosis and endocytosis, it is necessary to study these processes directly. An elegant way to do this is by measuring plasma membrane capacitance (Cm), a parameter ... proportional to cell surface area, the fluctuations of which are due to fusion and fission of secretory and other vesicles. Here we describe protocols that enable high-resolution Cm measurements in macroscopic and microscopic modes. Macroscopic mode, performed in whole-cell configuration, is used for measuring bulk Cm changes in the entire membrane area, and it enables the introduction of exocytosis stimulators or inhibitors into the cytosol through the patch pipette. Microscopic mode, performed in cell-attached configuration, enables measurements of Cm with attofarad resolution and allows characterization of fusion pore properties. Although we usually apply these protocols to primary pituitary cells and astrocytes, they can be adapted and used for other cell types. After initial hardware setup and culture preparation, several Cm measurements can be performed daily.
    Vir: Nature protocols. - ISSN 1754-2189 (Vol. 8, no. 6, 2013, str. 1169-1183)
    Vrsta gradiva - članek, sestavni del
    Leto - 2013
    Jezik - angleški
    COBISS.SI-ID - 30613977
    DOI

vir: Nature protocols. - ISSN 1754-2189 (Vol. 8, no. 6, 2013, str. 1169-1183)
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