Original Article

Immunomodulatory Effect of Human Umbilical Cord Blood-derived Mesenchymal Stem Cells on Activated T-lymphocyte


Many studies have been performed about regenerative and immunomodulatory properties of mesenchymal stem cells (MSCs) and their application in different treatment approaches. The present study aimed to investigate the immunomodulatory effect of umbilical cord blood-derived mesenchymal stem cells (UCB-MSCs) on the gene expression profile of cytokines in stimulated T-lymphocytes.
For this purpose, MSCs were isolated from umbilical cord blood samples and cultured in Dulbecco's Modified Eagle Medium supplemented with 10% fetal bovine serum. The nature of MSCs was identified by flow cytometry analysis and differentiation to the adipocyte and osteocyte lineage. Moreover, to investigate the immunomodulatory effects of MSCs on T cells, a co-culture system was designed and expression levels of interleukin (IL)-2, IL-4, IL-6, IL-10, IL-13, interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), and transforming growth factor-beta (TGF-β) genes were measured; using the real-time polymerase chain reaction (RT-PCR) technique.
Our results demonstrated the ability of MSCs to differentiate into adipocyte and osteocyte lineages. Further investigation also displayed that although UCB-MSCs could significantly reduce the expression of pro-inflammatory cytokines like IL-2, IL-6, IFN-γ, and TNF-α in activated T-lymphocytes, they noticeably potentiated the expression levels of IL-4, IL-10, IL-13, and TGF-β in the co-culture setting.
In conclusion, UCB-MSCs have immunomodulatory effects on activated T-lymphocytes in favor of anti-inflammatory responses.

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IssueVol 20 No 6 (2021) QRcode
SectionOriginal Article(s)
DOI https://doi.org/10.18502/ijaai.v20i6.8022
Cytokines Immunomodulation Mesenchymal stem cells T-lymphocytes

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How to Cite
Lotfinejad P, Shamsasenjan K, Baradaran B, Safarzadeh E, Kazemi T, Movassaghpour AA. Immunomodulatory Effect of Human Umbilical Cord Blood-derived Mesenchymal Stem Cells on Activated T-lymphocyte. Iran J Allergy Asthma Immunol. 2021;20(6):711-720.