Extended Data Fig. 1: Flow cytometry-based evaluation of cell death in the 14 cell lines upon serum-starvation.

a, Plots show Annexin V and 7-AAD co-staining in serum-starved cells and in the positive control spiked with apoptotic cells. The double positive population is shown in the top right quadrant. b, Quantifications of apoptotic cells (Annexin V + and 7-AAD + ) in the parental cells upon serum-starvation for exosome production. Bar graph shows mean ± s.e.m, individual data points refer to three biological replicates.