Supramolecular Self-assembly of EGCG-selenomethionine Nanodrug for Treating Osteoarthritis

Overview

Journal Bioact Mater

Specialty Biomedical Engineering

Date 2023 Oct 12

PMID 37822916

Authors

Haichao Yu

Zelong Song

Jie Yu

Boyuan Ren

Yuan Dong

Yonggang You

Zhen Zhang

Chengqi Jia

Yunpeng Zhao

Xuhui Zhou

Haifeng Sun

Xuesong Zhang

Affiliations

Soon will be listed here.

Abstract

Osteoarthritis (OA) has emerged as a significant health concern among the elderly population, with increasing attention paid to ferroptosis-induced OA in recent years. However, the prolonged use of nonsteroidal anti-inflammatory drugs or corticosteroids can lead to a series of side effects and limited therapeutic efficacy. This study aimed to employ the Mannich condensation reaction between epigallocatechin-3-gallate (EGCG) and selenomethionine (SeMet) to efficiently synthesize polyphenol-based nanodrugs in aqueous media for treating OA. Molecular biology experiments demonstrated that EGCG-based nanodrugs (ES NDs) could effectively reduce glutathione peroxidase 4 (GPX4) inactivation, abnormal Fe accumulation, and lipid peroxidation induced by oxidative stress, which ameliorated the metabolic disorder of chondrocytes and other multiple pathological processes triggered by ferroptosis. Moreover, imaging and histopathological analysis of the destabilization of the medial meniscus model in mice confirmed that ES NDs exhibiting significant therapeutic effects in relieving OA. The intra-articular delivery of ES NDs represents a promising approach for treating OA and other joint inflammatory diseases.

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