Potential regulatory effects of stem cell exosomes on inflammatory response in ischemic stroke treatment

Figure 3 Exosomes. Extracellular vesicles are classified into three types: Apoptotic bodies, microvesicles, and exosomes (Exos). Apoptotic bodies are ≥ 1000 nm, microvesicles are 100–1000 nm, and Exos are 30–100 nm in diameter. The contents carried by the Exos are mainly DNA, mRNA, microRNA, functional proteins, and other active substances. The membrane structure can express a variety of antigens and antibody molecules. The surface markers of the Exos mainly include CD63, CD81, CD9, and heat shock protein 70. By Figdiaw. MSCs: Mesenchymal stem cells.