Fig. 4From: NK cell-derived exosomes improved lung injury in mouse model of Pseudomonas aeruginosa lung infectionNK cell-derived exosomes detection. a The shape of exosomes was confirmed by transmission electron microscope. The yellow arrows were used to indicate NK cell-derived exosomes. Scale bar = 50 nm. b The expression of surface markers of exosome, including CD63 and CD9, was determined by western blot. NK-Exo: NK cell-derived exosomeBack to article page