Fig. 1

Identification of the extracted exosomes. Exosomes were extracted from dendritic cells infected with T. gondii (RH strain) for 28 h or uninfected cells. a Transmission electron microscopy was used to analyze the morphological structure of the exosomes obtained from the infected (Tg-DC-Exo) or uninfected dendritic cells (DC-Exo). Particle size and concentration of Tg-DC-Exo (b) and DC-Exo (c) were detected with nanoparticle tracking analysis (NTA). d Exosome-specific proteins TSG101, CD9, and CD81 and heat-shock protein HSP70 were detected in DC-Exo (1) or Tg-DC-Exo (2) using western blot