数字农科院2.0

Repair of Mechanical Cartilage Damage Using Exosomes Derived from Deer Antler Stem Cells

文献类型： 外文期刊

作者： Zhou, Jue;Zhao, Jianwei;Wang, Yimin;Jiang, Yidi;Li, Xunsheng;Wang, Datao;Yue, Zhigang;Lv, Jinpeng;Sun, Hongmei

作者机构：

关键词： deer antler stem cells;exosomes;cartilage regeneration;cartilage defects

期刊名称： FRONTIERS IN BIOSCIENCE-LANDMARK

ISSN： 2768-6701

年卷期： 2024 年 29 卷 8 期

页码：

收录情况： SCIE（2024版）

摘要： Background: Articular cartilage has limited self-repair capacity, and current clinical treatment options for cartilage defects are inadequate. However, deer antler cartilage possesses unique regenerative properties, with the ability to rapidly repair itself. This rapid self-repair process is closely linked to the paracrine factors released by deer antler stem cells. These findings present potential for the development of cell-free therapies for cartilage defects in clinical settings. The aim of this study was to investigate a novel method for repairing cartilage. Methods: A rat model with articular cartilage defects was established through surgery. Hydrogels loaded with exosomes (Exos) derived from antler stem cells (ASC-Exos) were implanted into the rat cartilage defects. The extent of cartilage damage repair was assessed using histological methods. The effects of ASC-Exos on chondrocytes and rat bone marrow mesenchymal stem cells (BMSCs) were evaluated using cell viability assays, proliferation assays, and scratch assays. Additionally, the maintenance of the chondrocyte phenotype by ASC-Exos was assessed using real-time fluorescence quantitative PCR (qPCR) and western blot analysis. The protein components contained of the Exos were identified using data-independent acquisition (DIA) mass spectrometry. Results: ASC-Exos significantly promoted the repair of cartilage tissue damage. The level of cartilage repair in the experimental group (ASC-Exos) was higher than that in the positive control (human adipose-derived stem cells, hADSC-Exos) and negative control (dulbecco's modified eagle medium) groups (p < 0.05). In vitro experiments demonstrated that ASC-Exos significantly enhanced the proliferation abilities of chondrocytes and the proliferation abilities and the migration abilities of BMSCs (p < 0.05). ASC-Exos up-regulated the expression levels of Aggrecan, Collagen II (COLII), and Sox9 mRNA and proteins in chondrocytes. Analysis of ASC-Exos protein components revealed the presence of active components such as Serotransferrin (TF), S100A4, and Insulin-like growth factor-binding protein 1 (IGF1). Conclusions: ASC-Exos have a significant effect on cartilage damage repair, which may be attributed to their promotion of chondrocyte and BMSCs proliferation and migration, as well as the maintenance of chondrocyte phenotype. This effect may be mediated by the presence of TF, S100A4, and IGF1.

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