Additional Airyscan immunofluorescence images. (A) Airyscan microscopy of endogenous La with DAPI counterstain from MDA-MB-231 WT cells permeabilized with either 0.1% TX-100 or 0.02% saponin. Green: La; cyan: DAPI. Scale bar: 10 µm. (B) Airyscan microscopy of endogenous La and CD63 from MDA-MB-231 WT cells permeabilized with 0.02% saponin. Green: La; magenta: CD63. Scale bar: 10 µm. (C) Airyscan microscopy of endogenous La, CD63, and p62 from MDA-MB-231 cells permeabilized with 0.02% saponin. Green: La; magenta: CD63; blue: p62. Scale bar: 10 µm. (D) Airyscan microscopy of endogenous LC3, CD63, and p62 from MDA-MB-231 cells permeabilized with 0.02% saponin. Green: LC3; magenta: CD63; blue: p62. Scale bar: 10 µm.