Abstract: Synovitis is present before and during osteoarthritis in horses and can result in performance-limiting lameness. Twenty-four horses with lameness localized to the metacarpo-/metatarsophalangeal joint or a single joint of the carpus were enrolled in this study. We evaluated the response of intra-articular injection with 10 million activated (aMSC) or non-activated (naMSC) allogeneic equine umbilical cord blood-derived mesenchymal stromal cells (MSCs). Subjective and objective lameness was assessed on Days 0, 1, 21, and 42. The treatment injection was randomly assigned and performed following the baseline assessment on Day 0. naMSC-treated horses had straight-line lameness scores that were significantly lower on Day 21 (1.0 ± 1.15) and Day 42 (1.13 ± 1.00) than on Day 0 ( = 0.0098 and = 0.0418, respectively). aMSC-treated horses had straight-line lameness scores that were significantly lower on Day 21 (0.96 ± 1.03) and Day 42 (0.79 ± 1.05) than on Day 0 ( = 0.0011 and < 0.0001, respectively). There was no significant difference between the treatment groups for any parameter at any timepoint. In conclusion, both aMSC and naMSC allogeneic MSCs resulted in significantly improved subjective lameness scores in horses when compared to baseline lameness scores.
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The research evaluates whether the injection of activated and non-activated mesenchymal stromal cells derived from horse umbilical cord blood can help reduce lameness caused by synovitis in horses.
Study Design and Participants
The study was conducted on 24 horses suffering from lameness localized to the metacarpo-/metatarsophalangeal joint or a single joint of the carpus. The lameness was a result of synovitis, a condition that can lead to osteoarthritis and greatly affect the horse’s performance.
The treatment for every horse was determined randomly and was administered after an initial assessment on Day 0.
Treatments and Measurements
The researchers used two types of mesenchymal stromal cells (MSCs), one type was activated (aMSC), and the other type was non-activated (naMSC).
10 million of these cells were injected intra-articularly (inside the affected joint) into the horses.
The efficacy of the treatment was evaluated based on the changes in the horses’ lameness. Objective and subjective lameness assessments were carried out on Days 0, 1, 21, and 42 from the start of the treatment.
Treatment Results
The naMSC treatment resulted in significantly lower lameness scores on Day 21 and Day 42, as compared to Day 0.
The aMSC treatment also caused a significant decrease in lameness scores on Day 21 and Day 42 from Day 0.
There was no significant difference observed between the effects of the aMSC treatment and the naMSC treatment at any given point in time.
Conclusions
The study concluded that both activated and non-activated allogeneic MSCs decreased the lameness scores in horses, indicating an improvement in their condition.
The results suggest the safety and efficacy of these cells in treating synovitis in horses, presenting a potential treatment option for dealing with this condition.
Cite This Article
APA
Seabaugh K, Rao S, Koenig JB, Pezzanite L, Dow S, Koch TG, Russell KA, Mehrpouyan S, Alizadeh AH, Goodrich LR.
(2024).
A Pilot Study to Assess the Safety and Efficacy of Umbilical Cord Blood-Derived Mesenchymal Stromal Cells for the Treatment of Synovitis in Horses.
Animals (Basel), 14(23), 3406.
https://doi.org/10.3390/ani14233406
Orthopaedic Research Center, Translational Medicine Institute, Colorado State University, Fort Collins, CO 80523, USA.
Rao, Sangeeta
Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
Koenig, Judith B
Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON N1G2W1, Canada.
Pezzanite, Lynn
Orthopaedic Research Center, Translational Medicine Institute, Colorado State University, Fort Collins, CO 80523, USA.
Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
Dow, Steven
Orthopaedic Research Center, Translational Medicine Institute, Colorado State University, Fort Collins, CO 80523, USA.
Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
Koch, Thomas G
eQcell Inc., University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.
Russell, Keith A
eQcell Inc., University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.
Mehrpouyan, Sahar
eQcell Inc., University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.
Alizadeh, A Hamed
eQcell Inc., University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.
Goodrich, Laurie R
Orthopaedic Research Center, Translational Medicine Institute, Colorado State University, Fort Collins, CO 80523, USA.
Grant Funding
na / eQcell, Inc
Conflict of Interest Statement
Koch is the Founder and CEO of eQcell and a member of eQcell’s Board of Directors and Scientific Advisory Board. Russell, Mehrpouyan, and Alizadeh are eQcell employees. Goodrich, Dow, and Koenig are members of the Scientific Advisory Board for eQcell, Inc., and Goodrich is a Shareholder in eQcell, Inc. The remaining authors declare no conflicts of interest. The funders of this project, eQcell, Inc., did play a role in the design of this study, in that they chose the two treatments and provided the treatments free of charge. eQcell had no role in the collection, analysis, or interpretation of data or the decision to publish the results.
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