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Human Adipose-derived Stem Cells Upregulate IGF-1 and Alleviate Osteoarthritis in a Two-stage Rabbit Osteoarthritis Model

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Date 2024 Jan 9
PMID 38192148
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Abstract

Objective: In recent times, it has been recognized that mesenchymal stem cells (MSCs) possess the capability to address osteoarthritis (OA). The objective of this research was to examine the impact of injecting human adipose-derived stem cells (hADSCs) into a novel rabbit osteoarthritis model with dual damage.

Methods: The OA model was established surgically first by medial collateral ligament and anterior cruciate ligament transection and medial meniscectomy, then by articular cartilage full-thickness defect. Enhanced Green Fluorescence Protein expressing lentivirus FG12 was used to label hADSCs, which were then injected into the knee joints. Every single rabbit was sacrificed after 4 and 8 weeks following the surgical procedure. Macroscopic examination, immunohistochemistry staining, magnetic resonance imaging, qRT-PCR, and ELISA analysis were utilized for the assessments.

Results: After 4 and 8 weeks, the injection of hADSCs resulted in reduced cartilage loss, minimal fissures and cracks, and a decrease in the volume of joint effusion and cartilage defect as measured by MRI. Moreover, the application of ELISA and qRT-PCR techniques revealed that the administration of hADSCs resulted in an elevation in the IGF-1 concentration.

Conclusions: Based on our findings, it can be inferred that the transplantation of hADSCs facilitates the healing of articular cartilage in the osteoarthritis model of rabbits with double damage. The upregulated IGF-1 may play a crucial part in the process of cartilage repair using hADSCs. The use of hADSC transplantation could potentially be appropriate for clinical implementation in managing osteoarthritis.

Citing Articles

Roles of Microenvironment on Mesenchymal Stem Cells Therapy for Osteoarthritis.

Zhang H, Jin C, Hua J, Chen Z, Gao W, Xu W J Inflamm Res. 2024; 17:7069-7079.

PMID: 39377043 PMC: 11457791. DOI: 10.2147/JIR.S475617.

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