Albumin-mediated "Unlocking" of supramolecular prodrug-like nanozymes toward selective imaging-guided phototherapy.

ABSTRACT: Construction of an activatable photosensitizer and integration into an adaptive nanozyme during phototherapy without producing off-target toxicity remains a challenge. Herein, we have fabricated a prodrug-like supramolecular nanozyme based on a metallic-curcumin and cyanine co-assembly. The albumin-mediated phenol AOH group transformation of nanozyme changes its adjustable oxygen stress from negative superoxide dismutase-like activity of ROS-scavenging to positive photo oxidase activity with an ROS-amplifying capacity. It further increases the depth penetration of a nanozyme in a tumor spheroid, selectively targeting tumorous phototherapy. It also triggers a signal in targeted tumor cells and helps increase cancer cell ablation. This work suggests new options for development of activatable

SUBMITTER: Han J 

PROVIDER: S-EPMC9258398 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature