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Schematic illustration of the cell uptake and in vivo experiment.
Notes: The drugs or NPs were incubated with RAW 264.7 cells for 12 hours. The drugs/NPs-loaded macrophages were injected into the tumor-bearing mice through the tail vein to deliver drugs/NPs to the tumor cells.
Abbreviations: NPs, nanoparticles; TAM, tumor-associated macrophage.
