Wound healing assays (migration capability and proliferation capability) of AGS and MKN45 after treatment with GRP78-containing exosomes. (A) Typical pictures 24 h later of wound healing assays for AGS after application of exosomes derived from AGS mock and GRP78-OE cells. For control experiments, PBS was used instead of GRP78-containing exosomes. Scale bars, 100 μm. (B) Typical pictures 24 h later of wound healing assays for MKN45 after application of exosomes derived from MKN45 mock and GRP78-OE cells. For control experiments, PBS was used instead of GRP78-containing exosomes. Scale bars, 100 μm. (C,D) Summarized data for (A) and (B), respectively. n = 3 each.