“Domino” cascade reactor based on DNA hydrogel for synergistic treatment of malignant tumor

  • Impact factors: 7
  • Publication: Journal of Animal Science and Biotechnology
  • Author:Ma Xinhao, Yang Xinran, Zhang Dianqi, Zhang Wenzhen, Wang Xiaoyu, Xie Kuncheng, He Jie, Mei Chugang, Zan Linsen
  • DOI citation-doi:10.1186/s40104-022-00820-1
  • Date:2023-02-03T00:00:00.000Z

The action pathways of starvation therapy and photodynamic therapy (PDT) do not exist in isolation and are usually related to tumor cell metabolism and immune regulation, which are of great significance in the treatment of malignant tumors. Here, a cancer-targeted “domino” cascade reactor is constructed for synergistic starvation therapy and amplifies photodynamic therapy by assembling hemin and glucose oxidase (GOx) into DNA hydrogel load with hypoxia-inducible factor 1α (HIF-1α) and photosensitizer chlorin e6 (Ce6). The cascade reactor has excellent biocompatibility and tumor targeting, which promotes PDT by reducing HIF-1α. At the same time, the G-quadruplex of AS1411 combined with hemin (AH) catalyzes the generation of oxygen from hydrogen peroxide to further improve the efficiency of PDT. The synergistic therapeutic effect of the cascade reactor is evaluated through in vivo and in vitro experiments, indicating that this cascade reactor has great potential advantages in the synergistic treatment of cancer.

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