Publication protocol
Autophagy was evaluated using the FlowCellect™ Autophagy LC3 Antibody-based Assay kit (Merck Millipore) according to manufacturer’s instructions46. In brief, discrimination between cytosolic- and autophagosome associated LC3 is achieved by monitoring the translocation of LC3 using flow cytometry. Because autophagy is a constitutive cellular degradation process, pre-treatment with lysosomal inhibitor is required for 30 min prior to treatment of the 72-h-cultured sample with anti-LC3 FITC to prevent lysosomal degradation of LC3. Quantification of fluorescence can then be performed using anti-LC3 FITC. Cytosolic and autophagosomic populations are differentiated by washing cells to remove cytosolic LC3-I and retaining only membrane-bound LC3-II prior to staining.
Cellular autophagic flux (turnover) was also monitored using a Cyto-ID autophagy detection kit (Enzo Life Sciences, Farmingdale, NY, USA) according to the manufacturer’s instructions28,47. In brief, the 488-nm excitable Cyto-ID green autophagy detection reagent supplied with the kit becomes brightly fluorescent in vesicles produced during autophagy serving as a convenient tool to detect autophagy at a cellular level. Following treatment, the cells were washed in phosphate buffered saline, and resuspended in 1000× dilution of the detection reagent. After 30 min of incubation at 37 °C, the cells were washed and analysed by flow cytometry.
Full paper
Login or
join for free to view the full paper.
Videos
Check out videos that might be relevant for performing Autophagy assay cell type - HT29 using CYTO-ID® Autophagy detection kit from Enzo Life Sciences. Please note that these videos are representative and steps or experiment specific processes must be kept in mind to expect desired results.
We haven't found any additional videos for this experiment / product combination yet.