Effects of mesenchymal stromal cells on regulatory T cells: Current understanding and clinical relevance
Open accessAbstract
The immunomodulatory potential of mesenchymal stromal cells (MSCs) and regulatory T cells (T-reg) is well recognized by translational scientists in the field of regenerative medicine and cellular therapies. A wide range of preclinical studies as well as a limited number of human clinical trials of MSC therapies have not only shown promising safety and efficacy profiles but have also revealed changes in T-reg frequency and function. However, the mechanisms underlying this potentially important observation are not well understood and, consequently, the optimal strategies for harnessing MSC/T-reg cross-talk remain elusive. Cell-to-cell contact, production of soluble factors, reprogramming of antigen presenting cells to tolerogenic phenotypes, and induction of extracellular vesicles (“exosomes”) have emerged as possible mechanisms by which MSCs produce an immune-modulatory milieu for T-reg expansion. Additionally, these two cell types have the potential to complement each other's immunoregulatory functions, and a combinatorial approach may exert synergistic effects for the treatment of immunological diseases. In this review, we critically assess recent translational research related to the outcomes and mechanistic basis of MSC effects on T-reg and provide a perspective on the potential for this knowledge base to be further exploited for the treatment of autoimmune disorders and transplants.
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Through IL-10, PD-1, and PGE2, mesenchymal stem cells prevent T cell development into T helper 1 and T helper 17 (pro-inflammatory) cells.
“Through IL-10, PD-1, and PGE2, MSCs prevent T cell development into T helper (Th)1 and Th17 (pro-inflammatory) cells [85, 86].”
From Mesenchymal stromal cells in bone marrow niche of patients with multiple myeloma: a double-edged sword (2025) · cites this paper as [86]
In “Potential mechanisms for MSC-mediated effects on T-reg” (page unavailable), the review reports that MSC coculture increased regulatory T cells and decreased Th17 cell numbers, with PGE2 among the factors produced. It also describes suppression of other T-cell subsets more generally, but does not establish that IL-10, PD-1, and PGE2 together prevent differentiation into both Th1 and Th17 cells. (LLM, conf=0.85)
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- Authors
- Negi, N., & Griffin, M. D.
- Affiliations
- Ollscoil na Gaillimhe – University of Galway (IE)
- Corresponding author
- Griffin, Matthew D.
- Venue
- Stem Cells
- Publisher
- Oxford University Press (OUP)
- Published
- 2020-02-03
- Volume
- 38
- Issue
- 5
- Pages
- 596-605
- ISSN
- 1066-5099 (ISSN-L)
- 1549-4918
- PMC
- PMC7217190
- OpenAlex
- W3003706822
- Cited by
- 118
- References
- 88
- Citations by year
- 2026: 13 · 2025: 22 · 2024: 16 · 2023: 17 · 2022: 12 · 2021: 20 · 2020: 17 · 2019: 1
- FWCI
- 8.54
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Stem Cells (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- ARAN (University of Galway Research Repository) (Ollscoil na Gaillimhe – University of Galway) (acceptedVersion, cc-by-nc-nd)
- Arrow@dit (Dublin Institute of Technology) (acceptedVersion)
- ARAN (University of Galway Research Repository) (Ollscoil na Gaillimhe – University of Galway) (submittedVersion, cc-by)
- Funders
- European Regional Development Fund (None)
- FP7 Health (602470)
- H2020 Health (634086)
- H2020 Marie Skłodowska-Curie Actions (713690)
- Science Foundation Ireland (09/SRC/B1794, 13/RC/2073)
- Topics
- Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
- Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
- Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
- Keywords
- mesenchymal stem cells, regulatory T cells, immunomodulation, exosomes, cell-cell contact, soluble factors, autoimmune disease, transplantation, cell therapy
- MeSH terms
- Animals, Humans, Immunotherapy, Models, Animal, T-Lymphocytes, Regulatory, Mice, Mesenchymal Stem Cells
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