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Stem cells and development2017; 26(7); 503-511; doi: 10.1089/scd.2016.0266

Autologous and Allogeneic Equine Mesenchymal Stem Cells Exhibit Equivalent Immunomodulatory Properties In Vitro.

Abstract: The use of allogeneic bone marrow-derived mesenchymal stem cells (BMDMSCs) may provide an effective alternative to autologous BMDMSCs for treatment of equine musculoskeletal injuries. However, concerns have been raised regarding the potential safety and effectiveness of allogeneic BMDMSCs. We conducted studies to assess the immunological properties of equine allogeneic BMDMSCs compared with those of autologous BMDMSCs. For assessment of inherent immunogenicity, the relative ability of allogeneic and autologous BMDMSCs to stimulate spontaneous proliferation of equine lymphocytes was compared. The immunosuppressive activity of the two cell types was evaluated by adding autologous or allogeneic BMDMSCs to activated lymphocytes and assessing suppression of lymphocyte proliferation and IFNγ production. Fifty-six allogeneic and 12 autologous combinations were evaluated. Studies were also done to elucidate mechanisms by which equine mesenchymal stem cells (MSCs) suppress lymphocyte function. Potential mechanisms evaluated included production of prostaglandin E (PGE), nitric oxide, transforming growth factor-beta, and indoleamine 2,3-dioxygenase. We found that autologous and allogeneic BMDMSCs both induced mild but equivalent levels of spontaneous lymphocyte activation in vitro. In in vitro assays assessing the ability of BMDMSCs to suppress activated lymphocytes, both allogeneic and autologous BMDMSCs suppressed T cell proliferation and IFNγ production to an equal degree. The primary mechanism of equine BMDMSC suppression of T cells was mediated by PGE. We concluded that allogeneic and autologous BMDMSCs are equivalent in terms of their immunomodulatory properties, and stimulated peripheral blood mononuclear cells appear to trigger the immunosuppressive properties of MSCs. Therefore, both cell types appear to have equal potency in modulating inflammatory processes related to acute or chronic musculoskeletal injuries in the horse.
Publication Date: 2017-01-12 PubMed ID: 27958776DOI: 10.1089/scd.2016.0266Google Scholar: Lookup
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  • Journal Article

Summary

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The research paper analyses the inflammatory responses of equine mesenchymal stem cells, both allogeneic and autologous types, in relation to the treatment of musculoskeletal injuries in horses. Results show that both types of stem cells exhibit equal response and effectiveness in treating horse injuries, debunking previous concerns on the safety and efficacy of allogeneic stem cells.

Introduction and Objective

  • The research aimed to discern the immunological properties of equine bone marrow-derived mesenchymal stem cells (BMDMSCs), specifically comparing allogeneic (from a different individual of the same species) and autologous (from the same individual) BMDMSCs.
  • The goal was to ascertain whether allogeneic BMDMSCs could be a viable alternative to autologous ones for treating equine musculoskeletal injuries.

Methodology

  • Tested the cells’ inherent immunogenicity, that is, their ability to stimulate spontaneous expansion of equine lymphocytes (white blood cells).
  • Analyzed the immunosuppressive activity of both allogeneic and autologous BMDMSCs by introducing them to activated lymphocytes and measuring the suppression of lymphocyte proliferation and IFNγ (a protein associated with immune response) production.
  • Explored the mechanisms of how mesenchymal stem cells (MSCs) suppress lymphocyte function, focusing on the production of prostaglandin E (PGE), nitric oxide, transforming growth factor-beta, and indoleamine 2,3-dioxygenase.

Results and Findings

  • The results showed that both autologous and allogeneic BMDMSCs induced mild but equivalent levels of spontaneous lymphocyte activation.
  • Both allogeneic and autologous BMDMSCs also suppressed T cell proliferation and IFNγ production equivalently in vitro assays.
  • The primary mechanism for BMDMSC suppression of T cells was found to be through PGE.

Conclusion and Implications

  • It was concluded that allogeneic and autologous BMDMSCs have equivalent immunomodulatory properties, indicating that allogeneic BMDMSCs could be a safe and effective alternative for treating musculoskeletal injuries in horses.
  • This suggests that allogeneic and autologous BMDMSCs have equal potential in modulating inflammatory processes related to acute or chronic musculoskeletal injuries in horses.

Cite This Article

APA
Colbath AC, Dow SW, Phillips JN, McIlwraith CW, Goodrich LR. (2017). Autologous and Allogeneic Equine Mesenchymal Stem Cells Exhibit Equivalent Immunomodulatory Properties In Vitro. Stem Cells Dev, 26(7), 503-511. https://doi.org/10.1089/scd.2016.0266

Publication

ISSN: 1557-8534
NlmUniqueID: 101197107
Country: United States
Language: English
Volume: 26
Issue: 7
Pages: 503-511

Researcher Affiliations

Colbath, Aimée C
  • 1 Orthopaedic Research Center, Colorado State University , Fort Collins, Colorado.
Dow, Steven W
  • 2 Clinical Sciences, Colorado State University , Fort Collins, Colorado.
Phillips, Jennifer N
  • 1 Orthopaedic Research Center, Colorado State University , Fort Collins, Colorado.
McIlwraith, C Wayne
  • 1 Orthopaedic Research Center, Colorado State University , Fort Collins, Colorado.
Goodrich, Laurie R
  • 1 Orthopaedic Research Center, Colorado State University , Fort Collins, Colorado.
  • 2 Clinical Sciences, Colorado State University , Fort Collins, Colorado.

MeSH Terms

  • Autoantigens / immunology
  • Bone Marrow Cells / cytology
  • Bone Marrow Cells / immunology
  • Cell Proliferation / physiology
  • Cells, Cultured
  • Humans
  • Leukocytes, Mononuclear / immunology
  • Lymphocyte Activation / physiology
  • Lymphokines / immunology
  • Mesenchymal Stem Cells / cytology
  • Mesenchymal Stem Cells / immunology
  • T-Lymphocytes / immunology

Citations

This article has been cited 27 times.
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