Metal-phenolic capsules with ROS scavenging reshape the oxidative microenvironment of atherosclerosis

Nanomedicine. 2023 Sep:53:102700. doi: 10.1016/j.nano.2023.102700. Epub 2023 Aug 5.

Abstract

Arterial injury makes the tissue in a state of high oxidative stress. At the same time, abnormal lipid metabolism can further lead to bleeding and thrombosis. Therefore, the anti-inflammatory and anti-oxidant polyphenol, EGCG was organically complexed with Fe3+ to form a metal-phenolic framework carrier. And the antihyperlipidemic drug, atorvastatin (ATV) was loaded into the carrier to enhance the bioavailability, and simultaneously alleviate the oxidative stress of the inflammatory site and abnormal lipid metabolism. The results confirmed that the obtained material EGCG-Fe-ATV had good biocompatibility and biosafety effect. In addition, EGCG-Fe-ATV showed outstanding anti-inflammatory, anti-oxidant and lipid-lowering properties. These therapeutic outcomes of EGCG-Fe-ATV were achieved by reducing systemic and local oxidative stress and inflammation, alleviating inflammatory cell infiltration in plaques, and modulating lipid synthesis and transferase to alter cholesterol transport. In conclusion, the combination of metal-phenolic capsules with ATV provides a new strategy for reshaping the oxidative microenvironment of atherosclerosis.

Keywords: Anti-inflammation; Anti-oxidant; Atherosclerosis; Metal-phenolic framework; ROS scavenging.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Inflammatory Agents / pharmacology
  • Antioxidants* / pharmacology
  • Atherosclerosis* / drug therapy
  • Atorvastatin / pharmacology
  • Atorvastatin / therapeutic use
  • Capsules
  • Humans
  • Oxidative Stress
  • Reactive Oxygen Species / metabolism

Substances

  • Antioxidants
  • Reactive Oxygen Species
  • Capsules
  • Atorvastatin
  • Anti-Inflammatory Agents