(i-l) Cells with indicated treatments were subjected to immunostaining with indicated antibodies (i,k). DNA was stained with DAPI (blue). Amount of aggregated proteins was quantified (j; n=10). Co-localization between LAMP1 and LC3 was quantified (l; n=4). Boxed areas in fluorescence images are magnified in right-most panels (i,k). Scale bar, 10 μm (a), 20 μm (c), 5 μm (i,k). All data are shown as mean±s.e.m. *P0.05, **P0.01, ***P0.001 (Student's t-test). Molecular weight markers are indicated in kDa. 