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Effect of mesenchymal stem cells on human Th1 cells by flow cytometry / 中国实验血液学杂志
Journal of Experimental Hematology ; (6): 697-702, 2012.
Article Dans Chinois | WPRIM | ID: wpr-263320
ABSTRACT
This study was aimed to investigate the effect of fetal bone marrow-derived mesenchymal stem cells (FBM-MSC) on the development of human Th1 cells. FBM-MSC were isolated, cultured and expanded in vitro. The cells were identified by their phenotype profiles and differential capacity. Human CD4(+) T cells from healthy donors were cultured alone or co-cultured with FBM-MSC (FBM-MSC/CD4). In these two cultures, the quantities of Th1 cells (interferon-γ(+)) were analyzed by flow cytometry. The results indicated that the immunophenotype and multilineage differentiation of FBM-MSC satisfied the generally accepted criteria. FBM-MSC played an inhibitory role in the development of Th1 cells. Flow cytometry analysis showed that the percentage of Th1 cells in FBM-MSC/CD4 was significantly lower than that in CD4(+) T cells cultured alone. The protein level of IFN-γ in FBM-MSC/CD4 detected by ELISA was also lower than that in CD4(+) T cells cultured alone. It was also demonstrated that the expression level of IL-6 in FBM-MSC/CD4 was much higher than that in CD4(+) T cells cultured alone or FBM-MSC. The neutralizing antibody of IL-6 could increase the quantities of Th1 cells and the expression levels of IFN-γ. It is concluded that FBM-MSC may play an inhibitory role in the development of human Th1 cells, and the IL-6 pathway may be one of mechanisms involved in the inhibitory role.
Sujets)
Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Cellules de la moelle osseuse / Différenciation cellulaire / Immunophénotypage / Interleukine-6 / Lymphocytes auxiliaires Th1 / Biologie cellulaire / Cellules souches mésenchymateuses / Cytométrie en flux / Métabolisme Type d'étude: Étude pronostique Limites du sujet: Humains langue: Chinois Texte intégral: Journal of Experimental Hematology Année: 2012 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Cellules de la moelle osseuse / Différenciation cellulaire / Immunophénotypage / Interleukine-6 / Lymphocytes auxiliaires Th1 / Biologie cellulaire / Cellules souches mésenchymateuses / Cytométrie en flux / Métabolisme Type d'étude: Étude pronostique Limites du sujet: Humains langue: Chinois Texte intégral: Journal of Experimental Hematology Année: 2012 Type: Article