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Characterization and profiling of immunomodulatory genes of equine mesenchymal stromal cells from non-invasive sources

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Abstract
Introduction: Mesenchymal stromal cells (MSCs) have been extensively studied for their promising capabilities in regenerative medicine. Although bone marrow is the best-known source for isolating equine MSCs, non-invasive alternative sources such as umbilical cord blood (UCB), umbilical cord matrix (UCM), and peripheral blood (PB) have also been reported. Methods: Equine MSCs from three non-invasive alternative sources were isolated from six individual mares (PB) and their foals (UCB and UCM) at parturition. To minimize inter-horse variability, the samples from the three sources were matched within the same mare and for UCB and UCM even within the same foal from that specific mare. The following parameters were analyzed: (i) success rate of isolation, (ii) proliferation capacity, (iii) tri-lineage differentiation ability, (iv) immunophenotypical protein, and (v) immunomodulatory mRNA profiles. Linear regression models were fit to determine the association between the source of MSCs (UCB, UCM, PB) and (i) the moment of first observation, (ii) the moment of first passage, (iii) cell proliferation data, (iv) the expression of markers related to cell immunogenicity, and (v) the mRNA profile of immunomodulatory factors, except for hepatocyte growth factor (HGF) as no normal distribution could be obtained for the latter variable. To evaluate the association between the source of MSCs and the mRNA expression of HGF, the non-parametric Kruskal-Wallis test was performed instead. Results: While equine MSCs could be isolated from all the UCB and PB samples, isolation from UCM was successful in only two samples because of contamination issues. Proliferation data showed that equine MSCs from all three sources could be easily expanded, although UCB-derived MSCs appeared significantly faster in culture than PB- or UCM-derived MSCs. Equine MSCs from both UCB and PB could be differentiated toward the osteo-, chondro-, and adipogenic lineage, in contrast to UCM-derived MSCs in which only chondro-and adipogenic differentiation could be confirmed. Regardless of the source, equine MSCs expressed the immunomodulatory genes CD40, CD80, HGF, and transforming growth factor-beta (TGF beta). In contrast, no mRNA expression was found for CD86, indoleamine 2,3-dioxygenase (IDO), and tumor necrosis factor-alpha (TNF alpha). Conclusions: Whereas UCM seems less feasible because of the high contamination risks and low isolation success rates, UCB seems a promising alternative MSC source, especially when considering allogeneic MSC use.
Keywords
REAL-TIME PCR, UMBILICAL-CORD BLOOD, STEM-CELLS, BONE-MARROW, PERIPHERAL-BLOOD, ADIPOSE-TISSUE, ADULT, DIFFERENTIATION, REGENERATION, EXPRESSION

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MLA
De Schauwer, Catharina, et al. “Characterization and Profiling of Immunomodulatory Genes of Equine Mesenchymal Stromal Cells from Non-Invasive Sources.” STEM CELL RESEARCH & THERAPY, vol. 5, 2014, doi:10.1186/scrt395.
APA
De Schauwer, C., Goossens, K., Piepers, S., Hoogewijs, M., Govaere, J., Smits, K., … Van de Walle, G. (2014). Characterization and profiling of immunomodulatory genes of equine mesenchymal stromal cells from non-invasive sources. STEM CELL RESEARCH & THERAPY, 5. https://doi.org/10.1186/scrt395
Chicago author-date
De Schauwer, Catharina, Karen Goossens, Sofie Piepers, Maarten Hoogewijs, Jan Govaere, Katrien Smits, Evelyne Meyer, Ann Van Soom, and Gerlinde Van de Walle. 2014. “Characterization and Profiling of Immunomodulatory Genes of Equine Mesenchymal Stromal Cells from Non-Invasive Sources.” STEM CELL RESEARCH & THERAPY 5. https://doi.org/10.1186/scrt395.
Chicago author-date (all authors)
De Schauwer, Catharina, Karen Goossens, Sofie Piepers, Maarten Hoogewijs, Jan Govaere, Katrien Smits, Evelyne Meyer, Ann Van Soom, and Gerlinde Van de Walle. 2014. “Characterization and Profiling of Immunomodulatory Genes of Equine Mesenchymal Stromal Cells from Non-Invasive Sources.” STEM CELL RESEARCH & THERAPY 5. doi:10.1186/scrt395.
Vancouver
1.
De Schauwer C, Goossens K, Piepers S, Hoogewijs M, Govaere J, Smits K, et al. Characterization and profiling of immunomodulatory genes of equine mesenchymal stromal cells from non-invasive sources. STEM CELL RESEARCH & THERAPY. 2014;5.
IEEE
[1]
C. De Schauwer et al., “Characterization and profiling of immunomodulatory genes of equine mesenchymal stromal cells from non-invasive sources,” STEM CELL RESEARCH & THERAPY, vol. 5, 2014.
@article{4351758,
  abstract     = {{Introduction: Mesenchymal stromal cells (MSCs) have been extensively studied for their promising capabilities in regenerative medicine. Although bone marrow is the best-known source for isolating equine MSCs, non-invasive alternative sources such as umbilical cord blood (UCB), umbilical cord matrix (UCM), and peripheral blood (PB) have also been reported.
Methods: Equine MSCs from three non-invasive alternative sources were isolated from six individual mares (PB) and their foals (UCB and UCM) at parturition. To minimize inter-horse variability, the samples from the three sources were matched within the same mare and for UCB and UCM even within the same foal from that specific mare. The following parameters were analyzed: (i) success rate of isolation, (ii) proliferation capacity, (iii) tri-lineage differentiation ability, (iv) immunophenotypical protein, and (v) immunomodulatory mRNA profiles. Linear regression models were fit to determine the association between the source of MSCs (UCB, UCM, PB) and (i) the moment of first observation, (ii) the moment of first passage, (iii) cell proliferation data, (iv) the expression of markers related to cell immunogenicity, and (v) the mRNA profile of immunomodulatory factors, except for hepatocyte growth factor (HGF) as no normal distribution could be obtained for the latter variable. To evaluate the association between the source of MSCs and the mRNA expression of HGF, the non-parametric Kruskal-Wallis test was performed instead.
Results: While equine MSCs could be isolated from all the UCB and PB samples, isolation from UCM was successful in only two samples because of contamination issues. Proliferation data showed that equine MSCs from all three sources could be easily expanded, although UCB-derived MSCs appeared significantly faster in culture than PB- or UCM-derived MSCs. Equine MSCs from both UCB and PB could be differentiated toward the osteo-, chondro-, and adipogenic lineage, in contrast to UCM-derived MSCs in which only chondro-and adipogenic differentiation could be confirmed. Regardless of the source, equine MSCs expressed the immunomodulatory genes CD40, CD80, HGF, and transforming growth factor-beta (TGF beta). In contrast, no mRNA expression was found for CD86, indoleamine 2,3-dioxygenase (IDO), and tumor necrosis factor-alpha (TNF alpha).
Conclusions: Whereas UCM seems less feasible because of the high contamination risks and low isolation success rates, UCB seems a promising alternative MSC source, especially when considering allogeneic MSC use.}},
  articleno    = {{6}},
  author       = {{De Schauwer, Catharina and Goossens, Karen and Piepers, Sofie and Hoogewijs, Maarten and Govaere, Jan and Smits, Katrien and Meyer, Evelyne and Van Soom, Ann and Van de Walle, Gerlinde}},
  issn         = {{1757-6512}},
  journal      = {{STEM CELL RESEARCH & THERAPY}},
  keywords     = {{REAL-TIME PCR,UMBILICAL-CORD BLOOD,STEM-CELLS,BONE-MARROW,PERIPHERAL-BLOOD,ADIPOSE-TISSUE,ADULT,DIFFERENTIATION,REGENERATION,EXPRESSION}},
  language     = {{eng}},
  pages        = {{13}},
  title        = {{Characterization and profiling of immunomodulatory genes of equine mesenchymal stromal cells from non-invasive sources}},
  url          = {{http://doi.org/10.1186/scrt395}},
  volume       = {{5}},
  year         = {{2014}},
}

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