Polydopamine-Modified Zeolite Imidazole Framework Drug Delivery System for Photothermal Chemotherapy of Hepatocellular Carcinoma.
Qinglian HuLiwang XuXiaoyu HuangYuxuan DuanDongchang SunZhengwei FuYunfen GePublished in: Biomacromolecules (2023)
Metal-organic frameworks (MOFs) are promising drug-delivering platforms for their intrinsic capability of loading and releasing different cargoes. To further extend their biomedical practices, the development of collaborative MOF systems with good biocompatibility and synergistic efficacy is essential. Herein, the near-infrared and pH dual-response collaborative zeolitic imidazolate framework-8 (ZIF-8) platform SOR@ZIF-8@PDA (SZP) was constructed, in which the chemotherapeutic drug sorafenib (SOR) was encapsulated in ZIF-8 and via polydopamine (PDA) coating on ZIF-8 by hierarchical self-assembly. PDA coating serves as a photothermal agent for PPT while reducing the toxicity of ZIF-8. SZP achieves intelligent release of therapeutic drugs by responding to the lower pH of the tumor microenvironment and thermal stimulation generated by near-infrared light irradiation. In addition, under light irradiation, SZP could effectively realize treatment of cancer cells through synergistic chemo-photothermal therapy, as evidenced by the enhanced cell apoptosis, inhibited tumor cell proliferation and migration. This collaborative MOFs system showed excellent biocompatibility and antitumor ability in vivo on a mouse HepG2 tumor model. Our results demonstrated that PDA-modified MOFs exhibited a fantastic good development prospect in biomedical applications.
Keyphrases
- metal organic framework
- cancer therapy
- photodynamic therapy
- quality improvement
- drug delivery
- healthcare
- primary care
- drug release
- cell proliferation
- oxidative stress
- emergency department
- stem cells
- combination therapy
- current status
- drug induced
- radiation therapy
- magnetic nanoparticles
- tissue engineering
- bone marrow
- electronic health record