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Extracellular vesicles (EVs) play an integral role in intercellular communication. (a) EVs are often classified into subtypes based on their mechanisms of biogenesis from source cells. (b) Various classes of biomolecules are present in the membranes and cargo of secreted EVs and contribute to their functions in cell signalling. (c) Secreted EVs can interact with cells through several mechanisms in order to elicit a response or transfer their cargo into recipient cells.
