Abstract
Morphology of Golgi apparatus changes frequently and diversely depending on various cellular conditions and these changes correlate with the balance between membrane inflow and outflow at the Golgi via vesicular transports. In a previous study, we introduced a semi-intact cell system suitable for the reconstitution of morphological changes that organelles undergo as well as the vesicular transport between them. Semi-intact cells are cells that have undergone plasma membrane permeabilization by the cholesterol-dependent pore-forming cytolysin, streptolysin O (SLO). Permeabilization enables the introduction of various molecules into the cells, as well as the substitution of the original cytosol with an exogenously made cytosol prepared from cells in various stages of cell cycle, differentiation, and disease progression. Coupled with a green fluorescent protein(GFP)-visualization technique, this cell-based system enables the analysis of the molecular mechanisms underlying biological processes that are highly dependent on the integrity of the intracellular architecture. In this chapter, we present a variety of reconstitution assays concerning biological reactions pertaining to the Golgi apparatus.
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