Component A-labeled vesicles are induced by starvation in HeLa cells.

Hela cells were incubated in a regular DMEM medium as control (A) or in a serum-depleted medium as autophagy treatment (B) for 16 hours. Both control cells and starved cells were incubated with component A for 30 minutes in a 37°C, 5% CO₂ incubator, and then washed four times with wash buffer. Cells were imaged immediately under a fluorescence microscope with a DAPI channel. Autophagy is indicated by bright blue dot staining of autophagic vacuoles (B).