Supplementary Figure 2: Identification of exomeres and exosome subpopulations released by multiple cancer cell lines.

Shown are AF4 profiles (a) and representative TEM images (b) of unfractionated input samples and pooled fractions of exomeres, Exo- S and Exo-L that derived from various cancer cell lines, including AsPC-1, Pan02, MDA-MB-231-4175, and 4T1. Multiple independent experiments were conducted with similar results for (a) (repeated times: AsPC-1, 9x; Pan02, 16x; 4175, 17x; 4T1, 10x) and (b) (AsPC-1, 3x; Pan02, 2x; 4175, 1x; 4T1, 4x). Scale bar, 200 nm. x- axis, time (min); y-axis (scale) and black dots, hydrodynamic radius (nm); Red and blue lines illustrate the QELS (DLS) intensity and UV absorbance (shown on a relative scale), respectively.