COMPARATIVE STUDY
JOURNAL ARTICLE

Comparative analysis of human mesenchymal stem cells from fetal-bone marrow, adipose tissue, and Warton's jelly as sources of cell immunomodulatory therapy

Qiushi Wang, Qiaoni Yang, Zhe Wang, Haixia Tong, Liangyan Ma, Yi Zhang, Fengping Shan, Yiming Meng, Zhengwei Yuan
Human Vaccines & Immunotherapeutics 2016, 12 (1): 85-96
26186552
To characterize different tissue MSCs as sources of cell immunomodulatory therapy. Examined the effects of IFN-γ on WJ-MSC and their immunomodulatory function characteristics. We compared human fetal bone marrow (F-BM), adipose tissue (AT), and Warton's Jelly-derived MSCs (WJ-MSCs) for surface antigen expression, differentiation ability, proliferation capacity, clonality, tolerance for aging, gene expression, and whether IFN-γ affected WJ-MSC gene expression, as determined by real time quantitative PCR. Fifteen geneswere examined. We further assess WJ-MSCs-mediated immunomodulatory on peripheral blood mononuclear, stimulated by PHA, IL-2 and CD3Ab after 5 days of co-cultured in a 5:1 ratio (PBMC:MSCs). Examined the effect of WJ-MSCs on the Th1, Th2, Th17 cytokines production and Treg augument. MSCs from different tissues have similar levels of cell surface antigen expression and differentiation ability, while F-BM-MSCs and WJ-MSC had higher rates of cell proliferation and clonality than AD-MSCs. All 15 genes were expressed at similar levels in WJ-MSCs and AD-MSCs (P > 0.05). 9 genes were upregulated in WJ-MSCFor F-MSC, including IL-6, CXCL9, CXCL10, CXCL11, ICAM-1, IDO1, HLA-G5, SDF1A, and NOTCH were down expression, but VCAM-1 was lower expressionin WJ-MSCS. After IFN-γ treatment, 7 genes were upregulated in WJ-MSC, including chemokine ligands CXCL9, CXCL10 and CXCL11, and the adhesion protein VCAM1and ICAM1. Additionally, immunosuppressive factors, such as HLA-G and IDO were both increased. When cocultured with peripheral blood mononuclear, WJ-MSCs showed an immunosuppressive function by inhibit the proliferative response of Th1 and Th17 but augment Th2 and Treg. Primed WJ-MSCs by IFNγ caused a greater reduction in IFNγ and TNFα than untreated WJ-MSCs, also the effect on augument in Treg and inhibit Th17 (P < 0.01). Our results demonstrate that primitive F-BM-MSCs and WJ-MSCs have biological advantages as compared to adult cells, WJ-MSCs have a gene expression pattern similar to AT-MSCs but not F-BM MSCs, and that inflammatory stimuli regulate gene expression in WJ-MSCs. WJ-MSC showed the immunosuppressive function in co-cultured system with PBMC, and IFNγ can promoted the immunosuppressive function.

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