Fig. 2

Serum-derived exosomes can be taken up by CD8+ T cells. A Representative TEM images of purified exosomes from sera of patients with HPC. Scale: 200 nm. B Immunoblotting of CD63 expression in whole cell lysates and purified exosomes. C The exosomes were identified by TEM. D The exosomes could be taken up by CD8+ T cells. The exosomes were stained with PKH-69 (green), and the nuclei were stained with DAPI (blue). The red arrow indicates the exosomes. Scale: 50 nm