DQ-Red BSA Trafficking Assay in Cultured Cells to Assess Cargo Delivery to Lysosomes.
Abstract
Lysosomes are the terminal end of the endocytic pathway having acidic environment required for active hydrolases that degrade the cargo delivered to these compartments. This process of cargo delivery and degradation by endo-lysosomes is a tightly regulated process and important for maintaining cellular homeostasis. Cargos like EGF (Epidermal Growth Factor), Dil-LDL (3,3'-Dioctadecylindocarbocyanine-Low Density Lipoprotein), Dextran, DQ-BSA (Dye Quenched-Bovine Serum Albumin) etc., are routinely used by researchers to analyze the role of various proteins in endocytic pathway. Trafficking of DQ-BSA in cells depleted of or over-expressing the gene of interest is a useful assay for identifying the role of various proteins in endocytic trafficking pathway. The protocol describes the DQ-Red BSA trafficking assay that can be used to study endocytic trafficking in various cell types.
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