Abstract
Liver fibrosis is a chronic disease that lacks effective drug treatment. Chronic damage and inflammation lead to the formation of collagen and fibrous scars. However, the excessive accumulation of collagen I significantly hinders the delivery of drugs into liver tissue. Therefore, this study developed a quercetin-loaded melanin nanoparticle codecorated collagenase (MNP-QUE-COL) for the treatment of liver fibrosis. These results showed that MNP-QUE-COL degraded excessive collagen I, thereby efficiently delivering melanin and quercetin into the liver tissue. MNP-QUE-COL exhibited optimal PA/MRI dual-mode imaging ability. In addition, the synergistic anti-inflammatory and reactive oxygen species scavenging function of quercetin and melanin was achieved by regulation of M1-M2 macrophage polarization and inhibition of pro-inflammatory cytokine release, reshaping the imbalanced extracellular interstitial inflammatory environment. The results of this research suggest that MNP-QUE-COL is a safe and efficient therapeutic nanoplatform for liver fibrosis, showing promise as a potential therapeutic strategy for liver fibrosis and associated diseases.
Published Version
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