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A schematic drawing of chondrocyte-derived exosomal miR-195 entering osteosarcoma (OS) cells.
miR-195 is wrapped in chondrocyte-derived exosomes and then delivered to OS cells. In OS cells, highly expressed miR-195 inhibits OS cell proliferation and promotes their apoptosis by inhibiting kinesin superfamily protein 4A (KIF4A)
