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Treated macrophages with miRNA-loaded exosomes exert antitumor activity. a Monitoring of tumor growth at the indicated time points. b Measurement of the final volume. c Histologic observation using hematoxylin and eosin staining. d Evaluation of immune response by measurement of TNF-α, IL-10, and TGF-β concentration. *P < 0.05, **P < 0.01
