Immunomodulatory Effects of Human Umbilical Cord Wharton’s Jelly-Derived Mesenchymal Stem Cells on Differentiation, Maturation and Endocytosis of Monocyte-Derived Dendritic Cells

Autor: Mohsen Saeidi, Ahmad Masoud, Yadollah Shakiba, Jamshid Hadjati, Mandana Mohyeddin Bonab, Mohammad Hossein Nicknam, Mostafa Latifpour, Behrooz Nikbin
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Iranian Journal of Allergy, Asthma and Immunology, Vol 12, Iss 1 (2013)
Druh dokumentu: article
ISSN: 1735-1502
1735-5249
Popis: The Wharton’s jelly of the umbilical cord is believed to be a source of mesenchymal stem cells (MSCs) which can be therapeutically applied in degenerative diseases. In this study, we investigated the immunomodulatory effect of umbilical cord derived- mesenchymal stem cells (UC-MSCs) and bone marrow-derived-mesenchymal stem cells (BM-MSCs) on differentiation, maturation, and endocytosis of monocyte-derived dendritic cells in a transwell culture system under laboratory conditions. Monocytes were differentiated into immature dendritic cells (iDCs) in the presence of GM-CSF and IL-4 for 6 days and then differentiated into mature dendritic cells (mDCs) in the presence of TNF-α for 2 days. In every stage of differentiation, immature and mature dendritic cells were separately co- cultured with UC-MSCs and BM-MSCs. The findings showed that UC-MSCs and BM-MSCs inhibited strongly differentiation and maturation of dendritic cells at higher dilution ratios (1:1). The BM-MSCs and UC-MSCs showed more inhibitory effect on CD1a, CD83, CD86 expression, and dendritic cell endocytic activity, respectively. On the other hand, these cells severely up-regulated CD14 marker expression. We concluded that UC-MSCs and BM-MSCs could inhibit differentiation, maturation and endocytosis in monocyte-derived DCs through the secreted factors and free of any cell- cell contacts under laboratory conditions. As DCs are believed to be the main antigen presenting cells for naïve T cells in triggering immune responses, it would be logical that their inhibitory effect on differentiation, maturation and function can decrease or modulate immune and inflammatory responses.
Databáze: Directory of Open Access Journals
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