Gene therapy2002; 9(1); 12-20; doi: 10.1038/sj.gt.3301608

Treatment of experimental equine osteoarthritis by in vivo delivery of the equine interleukin-1 receptor antagonist gene.

Abstract: Osteoarthritis in horses and in humans is a significant social and economic problem and continued research and improvements in therapy are needed. Because horses have naturally occurring osteoarthritis, which is similar to that of humans, the horse was chosen as a species with which to investigate gene transfer as a potential therapeutic modality for the clinical treatment of osteoarthritis. Using an established model of equine osteoarthritis that mimics clinical osteoarthritis, the therapeutic effects resulting from intra-articular overexpression of the equine interleukin-1 receptor antagonist gene through adenoviral-mediated gene transfer were investigated. In vivo delivery of the equine IL-IRa gene led to elevated intra-articular expression of interleukin-1 receptor antagonist for approximately 28 days, resulting in significant improvement in clinical parameters of pain and disease activity, preservation of articular cartilage, and beneficial effects on the histologic parameters of synovial membrane and articular cartilage. Based on these findings, gene transfer of interleukin-1 receptor antagonist is an attractive treatment modality for the equine patient and also offers future promise for human patients with osteoarthritis.
Publication Date: 2002-02-19 PubMed ID: 11850718DOI: 10.1038/sj.gt.3301608Google Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The study explores the potential of gene therapy in treating equine osteoarthritis by delivering the horse variant of the interleukin-1 receptor antagonist (IL-1Ra) gene. The experiment led to a significant improvement in pain and disease activity, preservation of cartilage, and beneficial effects on the synovial membrane and articular cartilage, upholding the promise for future application to human osteoarthritis treatment.

Objective of the Research

  • The primary goal of this research is to investigate the therapeutic potential of gene transfer for the treatment of osteoarthritis in horses. Given similarities between equine and human osteoarthritis, the horse was chosen as an ideal model to test this therapy potentially for future application on humans.

Methodology

  • Researchers used an established model of equine osteoarthritis to study the therapeutic effects of gene transfer.
  • The gene in question was the equine interleukin-1 receptor antagonist gene (IL-1Ra), transferred using an adenoviral vector. This gene and its product play a significant role in the regulation of inflammation, a critical component of osteoarthritis pathology.
  • The gene was delivered in vivo (“inside the body”) directly into the arthritic joint, leading to its overexpression in the local environment.

Results and Findings

  • Intra-articular overexpression of the equine IL-1Ra gene led to elevated local levels of the interleukin-1 receptor antagonist for about 28 days.
  • Most importantly, this increased gene expression resulted in significant improvements in pain and disease activity, effectively slowing the progression of the osteoarthritic condition.
  • Additionally, beneficial effects were observed in the synovial membrane and articular cartilage, tissues often affected in osteoarthritis. This suggests a level of ‘disease-modifying’ impact, beyond just symptom relief.

Implications and Future Promise

  • The results propose gene transfer of interleukin-1 receptor antagonist as an attractive treatment modality for equine patients, with a prospect for application in the treatment for human osteoarthritis.
  • Present day treatments for osteoarthritis often target symptom relief rather than altering disease progression, and thus this research offers significant promise for future improvement in osteoarthritis therapy.

Cite This Article

APA
Frisbie DD, Ghivizzani SC, Robbins PD, Evans CH, McIlwraith CW. (2002). Treatment of experimental equine osteoarthritis by in vivo delivery of the equine interleukin-1 receptor antagonist gene. Gene Ther, 9(1), 12-20. https://doi.org/10.1038/sj.gt.3301608

Publication

ISSN: 0969-7128
NlmUniqueID: 9421525
Country: England
Language: English
Volume: 9
Issue: 1
Pages: 12-20

Researcher Affiliations

Frisbie, D D
  • Equine Orthopaedic Research Laboratory, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
Ghivizzani, S C
    Robbins, P D
      Evans, C H
        McIlwraith, C W

          MeSH Terms

          • Adenoviridae / genetics
          • Analysis of Variance
          • Animals
          • Gene Expression
          • Genetic Therapy / methods
          • Genetic Vectors / administration & dosage
          • Horse Diseases / therapy
          • Horses
          • Injections, Intra-Articular
          • Models, Animal
          • Osteoarthritis / therapy
          • Osteoarthritis / veterinary
          • Receptors, Interleukin-1 / antagonists & inhibitors
          • Transduction, Genetic / methods

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