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Comparative analyses of immunosuppressive characteristics of bone-marrow, wharton's jelly, and adipose tissue-derived human mesenchymal stem cells

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Date

2017

Author

Karaöz, Erdal
Demircan, Pinar Cetinalp
Erman, Gulay
Sun Gungorurler, Eda
Sariboyaci, Ayla Eker

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Citation

Karaöz, E., Demircan, P. Ç., Erman, G., Güngörürler, E., & Sarıboyacı, A. E. (2017). Comparative analyses of immunosuppressive characteristics of bone-marrow, Wharton’s jelly, and adipose tissue-derived human mesenchymal stem cells. Turkish Journal of Hematology, 34(3), 213.

Abstract

Objective: Mesenchymal stem cells (MSCs), which possess immunosuppressive characteristics on induced T-cells, were shown to be applicable in prevention and treatment of graft-versus-host disease. However, knowledge of effective cell sources is still limited. In this study, MSCs from different human tissues, i.e. bone marrow (BM), Wharton's jelly (WJ), and adipose tissue, were isolated, and the immune suppression of stimulated T cells was analyzed comparatively. Materials and Methods: MSCs were co-cultured with phytohemagglutinin-induced T-cells with co-culture techniques with and without cell-to-cell contact. After co-culture for 24 and 96 h, the proliferation rate of T cells was estimated by carboxyfluorescein succinimidyl ester and apoptosis by annexin V/PI methods. Both T cells and MSCs were analyzed with respect to gene expressions by real-time polymerase chain reaction and their specific protein levels by ELISA. Results: The results showed that all three MSC lines significantly suppressed T-cell proliferation; BM-MSCs were most effective. Similarly, T-cell apoptosis was induced most strongly by BM-MSCs in indirect culture. In T cells, the genes in NFkB and tumor necrosis factor pathways were silenced and the caspase pathway was induced after co-culture. These results were confirmed with the measurement of protein levels, like transforming growth factor beta 1, IL-6, interferon-gamma, interleukin (IL)-2, and tumor necrosis factor-alpha. Additionally, IL-17A was detected in high levels in WJ-MSC co-cultures. We showed that IL-17A-producing Tregs are the key mediators in the treatment of graft-versus-host disease. Conclusion: BM-MSCs, which have been used in clinical applications for a while, showed the greatest immunosuppressive effect compared to other MSCs. However, a promising cell source could also be WJ, which is also effective in suppression with fewer ethical concerns. We described the molecular mechanism of WJ-MSCs in allogenic transplants for the first time.

Source

Turkish Journal of Hematology

Volume

34

Issue

3

URI

https://doi.org/10.4274/tjh.2016.0171
https://hdl.handle.net/20.500.12713/881

Collections

  • PubMed İndeksli Yayınlar Koleksiyonu [1162]
  • Scopus İndeksli Yayınlar Koleksiyonu [1924]
  • Temel Tıp Bilimleri Bölümü Makale Koleksiyonu [235]
  • WoS İndeksli Yayınlar Koleksiyonu [2043]



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