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Fig. 3 | BMC Biology

Fig. 3

From: Q&A: What are exosomes, exactly?

Fig. 3

Exosome uptake by recipient cells. Fusion of MVBs with the cell surface releases ILVs as exosomes. In order for exosomes to elicit a response from recipient cells they might either fuse with plasma membrane (a) or be taken up whole via endocytosis (b), following which the exosome must be delivered to the cytosol, for example, via a back-fusion event (c). Alternatively, exosomes may attach to the surface of recipient cells to elicit a signalling response (d)

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