Circulating exosomal miR-17-92 cluster serves as a novel noninvasive diagnostic marker for patients with gastric cancer

Figure 1 Characterization of exosomes derived from the serum of patients with gastric cancer and healthy controls. A: Transmission electron microscopy (TEM) images of serum exosomes; B: The size distribution of the exosomes was examined through nanoparticle tracking analysis; C: The exosome samples were derived from patients with gastric cancer (GC) and healthy controls; D: Western blot analysis of exosomal protein markers, including CD9 and CD81, in the exosome-depleted supernatant (EDS) and exosomes from the serum of patients with GC and healthy controls. ^aP < 0.05; EDS: Exosome-depleted supernatant; E-GC: Exosomes from the serum of patients with gastric cancer; E-Ctrl: Exosomes from the serum of healthy controls.