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. 2021 May 10;12:679602. doi: 10.3389/fphar.2021.679602

FIGURE 2.

FIGURE 2

Schematic presentation of strategies of different MP-based cancer vaccines. (A) Antigens and adjuvants are released in a controlled manner from the MPs and then taken up by the immature DCs. (B) DC-targeting MPs can release antigens and adjuvants within the DCs after being taken up by the immature DCs. (C) MP-based artificial DCs or mini DCs can present T-cell activation signals to activate T cells or directly expand primary T cells.