What is the function of exosomes?

Exosomes play an important role in intracellular communication during normal development and homeostasis, enabling the transfer of biologically active components (DNAs, RNAs, and proteins) between cells. Exosomes have also been implicated in disease states, including cancer, infectious disease and neurodegenerative disorders. Due to the ready availability of exosomes in bodily fluids, exosomes are being studied as both disease markers and as a way to understand disease progression.