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. 2020 Jun 3;8:525. doi: 10.3389/fbioe.2020.00525

FIGURE 1.

FIGURE 1

The biogenesis of exosomes. the plasma membrane invaginated to produced endocytic vesicles, which are further transformed into MVBs. MVBs then move and touch to the plasma membrane to secrete vesicles into the extracellular environment, at which point the vesicles are defined as exosomes.