Journal: Cancers
Article Title: Exo70 Promotes the Invasion of Pancreatic Cancer Cells via the Regulation of Exosomes
doi: 10.3390/cancers16020336
Figure Lengend Snippet: Knockdown of Exo70 caused intracellular aggregation of MVBs. ( A , B ) Transmission electron microscopy images of MVEs in PC cells (A818-4 and PANC-1) stably expressing control or Exo70 knockdown or in cells treated with DMSO or ES2. Scale bars = 5 μm. Black arrows indicate MVEs. Dashed rectangles indicate regions zoomed in the respective lower panels. ( C , D ) Quantification of the number of MVEs and the ILV numbers of each MVE in PC cells (A818-4 and PANC-1). ( E , F ) Immunofluorescence staining of CD63 in PC cells (A818-4 and PANC-1) stably expressing the control or Exo70knockdown. Scale bars = 5 μm. * p < 0.05, ** p < 0.01, **** p < 0.0001.
Article Snippet: The following antibodies and reagents were used for this study: anti-β-actin (Sigma-Aldrich, St. Louis, MO, USA, cat#a3854), anti-ALIX (Abcam, Cambridge, UK, cat#ab186429), anti-CD63 (Santa Cruz Biotechnology, Inc., Santa Cruz, CA, USA, cat#sc-5275), anti-CD81 (Proteintech, Wuhan, China, cat#66866-1-lg), anti-CD9 (Proteintech, cat#60232-1-lg), anti-Tsg101 (Abcam, cat#ab133586), anti-Exo70 (Abcam, cat#ab118792), anti-F-actin (Cytoskeleton, Inc., Denver, CO, USA; cat#PHDR1), anti-PD-L1 (Cell Signaling, Danvers, MA, USA, cat# 13684), Endosidin2 (ES2) (Cayman Chemical, Ann Arbor, MI, USA, cat#21888) and PKH67 (Sigma-Aldrich, cat#MINI67).
Techniques: Knockdown, Transmission Assay, Electron Microscopy, Stable Transfection, Expressing, Control, Immunofluorescence, Staining