Intramuscular Transplantation of Allogeneic Mesenchymal Stromal Cells Derived from Equine Umbilical Cord.
Abstract: Mesenchymal stromal cells (MSCs) have great therapeutic potential, particularly in the process of tissue repair and immunomodulation through the secretion of biomolecules. Thus, the aim of this study was to evaluate the hypothesis that intramuscular transplantation of allogeneic MSCs obtained from equine umbilical cord (UC-MSCs) is safe, demonstrating that this is a suitable source of stem cells for therapeutic use. Results: For this, UC-MSCs were cultured, characterized and cryopreserved for future transplantation in six healthy mares. On day 0, transplantation of three million UC-MSCs diluted in Hank's Balanced Solution (HBSS) was performed on right and left sides of the rump muscle. As a control, HBSS injections were performed caudally in the same muscle. Muscle biopsies were obtained as a control 30 days before transplantation (D-30). The biopsies were collected again on day 2 (left side) and day 7 (right side) post transplantation and examined histologically. All procedures were preceded by ultrasound examination and blood sampling. Hematologic evaluation remained within normal limits and no differences were observed between time points (p>0.05). Ultrasound examination was suggestive of inflammation 48 hours after transplantation in both groups (control and treated). At histological evaluation it was found only discrete inflammation signals between D-30×D2 (p 0.05) between the groups at different time points. Conclusions: Equine UC-MSCs under the experimental conditions did not promote severe inflammation that causes tissue damage or lead to its rejection by the host organism and therefore has a good potential for clinical use.
Publication Date: 2016-08-31 PubMed ID: 27572709PubMed Central: PMC5155720DOI: 10.15283/ijsc16011Google Scholar: Lookup
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- Journal Article
Summary
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This research explores the use of Mesenchymal stromal cells (MSCs) derived from horse umbilical cords for tissue repair and immunomodulation. The researchers aimed to confirm if MSC transplantation via intramuscular injection is safe and a viable source of stem cells for therapeutic use. The study established that the procedure did not cause severe inflammation or tissue damage and is potentially suitable for clinical applications.
Methodology and Experimental Setup
- The study started by culturing, characterising and cryopreserving MSCs obtained from equine umbilical cords for future transplantation into six healthy mares.
- The researchers conducted the transplant on Day 0, injecting three million UC-MSCs into both sides of the rump muscle of each mare.
- As a control, they also performed injections of Hank’s Balanced Solution (HBSS), an isotonic cell culture solution, into the same muscle area.
- Muscle biopsies were taken as a control 30 days before transplantation (D-30) and again on day 2 (left side) and day 7 (right side) after transplantation for histological examination. The hematologic evaluation was also conducted, and ultrasound was used to monitor the procedure.
Findings and Conclusion
- The hematologic evaluation showed no significant variation and remained within the normal limits, implying that the transplant procedure did not result in abnormal blood conditions or reactions.
- An ultrasound examination revealed possible inflammation 48 hours after transplantation in both groups. However, on histological examination, only mild inflammation was observed between D-30 and D2 in the treatment group.
- No statistical differences were noted in inflammation levels between the control and treatment groups at different times, suggesting that the transplantation of equine UC-MSCs did not significantly increase inflammation.
- The overall findings illustrate that the transplantation of equine UC-MSCs did not trigger severe inflammation, tissue damage, or induce rejection by the host organism. This suggests that it could be a safe and effective method for therapeutic applications.
Cite This Article
APA
Dias MC, Landim-Alvarenga FD, de Moraes CN, da Costa LD, Geraldini CM, de Vasconcelos Machado VM, Maia L.
(2016).
Intramuscular Transplantation of Allogeneic Mesenchymal Stromal Cells Derived from Equine Umbilical Cord.
Int J Stem Cells, 9(2), 239-249.
https://doi.org/10.15283/ijsc16011 Publication
Researcher Affiliations
- Department of Animal Reproduction and Veterinary Radiology, College of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, SP, Brazil.
- Department of Animal Reproduction and Veterinary Radiology, College of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, SP, Brazil.
- Department of Animal Reproduction and Veterinary Radiology, College of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, SP, Brazil.
- Department of Veterinary Pathology, College of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, SP, Brazil.
- Department of Animal Reproduction and Veterinary Radiology, College of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, SP, Brazil.
- Department of Animal Reproduction and Veterinary Radiology, College of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, SP, Brazil.
- Department of Animal Reproduction and Veterinary Radiology, College of Veterinary Medicine and Animal Science, São Paulo State University, UNESP, Botucatu, SP, Brazil.
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Citations
This article has been cited 1 times.- MacDonald ES, Barrett JG. The Potential of Mesenchymal Stem Cells to Treat Systemic Inflammation in Horses. Front Vet Sci 2019;6:507.
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