Abstract
Mesenchymal stem cell derived (MSC) exosomes are extracellular vesicles with a diameter of about 50-200 nm. Exosomes contain a large number of biologically active substances including mRNAs, miRNAs, cytokines, chemokines, proteins, lipids, etc. MSC exosomes exert biological effects through paracrine and endocrine pathways in vivo. Uncontrolled inflammation and multiple organ dysfunction are the key roles in the progression of sepsis, moreover, heart, lungs, kidneys and brain are the general target organs to be damaged. MSC exosomes regulate the expression of cytokines, the production of inflammatory cell, the levels of inflammatory response and the recovery of damaged tissues or organ function. Therefore, studying the application of MSC exosomes is significant for the clinical treatment of sepsis. This article reviews the systemic inflammation regulation by MSC exosomes and its protective function on targeted organs such as heart, lungs, kidneys, brain, liver, etc. to provide evidences for the treatment of sepsis.
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