used in this study are as follows.
Anti-extracellular part: mouse anti-human CD9 (MAB1880, R&D),
rabbit anti-human CD63 (MAB5048, R&D), mouse anti-human CD41b
(555468, BD), mouse anti-human CD81 (MAB4165, R&D), mouse anti-human
CD82 (MAB4616, R&D), mouse anti-human E-cadherin (AB8993, Abcam),
and mouse anti-human EpCAM (MAB9601, R&D). Anti-intracellular
part: rabbit anti-human CD9 N-term (AP1482a, Abgent), rabbit anti-human
CD81 C-term (AP6631b, Abgent), anti-CD82 C-term (AB66400, Abcam),
and mouse anti-human E-cadherin C-term (AB76055, Abcam). Anti-mouse
IgG (557273, BD Biosciences), mouse anti-human MET (5631, Cell Signaling),
and HRP-conjugated secondary antibodies (Jackson Immunoresearch) were
also used.