Fig. 5: Antitumor effect of Au@MPN after intratumoral injection.

A Schematic illustration of the antitumor process of Au@MPN intratumoral injection. B–D Individual tumor growth curves from mice treated with PBS, AuNPs, and Au@MPN. E Relative tumor volumes from mice after the indicated treatments. F Photos of tumors extracted from mice receiving the indicated treatments. G The weights of tumor tissues from mice receiving the indicated treatments. H Representative H&E staining images of tumor tissues and major organs collected from mice with the indicated treatments.