2011
DOI: 10.1016/j.imlet.2010.09.006
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Opposing effect of mesenchymal stem cells on Th1 and Th17 cell polarization according to the state of CD4+ T cell activation

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Cited by 71 publications
(66 citation statements)
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References 23 publications
(33 reference statements)
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“…However, at lower ratios (i.e., 1:10), differences in IL-10 induction between MAPCs and MSCs were not apparent (data not shown). Although IL-10 induction and Th1 cytokine suppression are regarded as consensus properties for MSCs, suppression of Th17 cells remains more contentious, with discordant reports proposing that MSCs can enhance or inhibit Th17 expansion (42)(43)(44)(45)(46)(47)(48). It was suggested that this may reflect the influence of a network of interdependent variables, such as donor, cell type, licensing, T cell activation status, level of contact, and balance in Th17-enhancing (i.e., TGF-b/IL-6) versus inhibitory (e.g., IDO, PGE 2 ) factors (3,41).…”
Section: Discussionmentioning
confidence: 99%
“…However, at lower ratios (i.e., 1:10), differences in IL-10 induction between MAPCs and MSCs were not apparent (data not shown). Although IL-10 induction and Th1 cytokine suppression are regarded as consensus properties for MSCs, suppression of Th17 cells remains more contentious, with discordant reports proposing that MSCs can enhance or inhibit Th17 expansion (42)(43)(44)(45)(46)(47)(48). It was suggested that this may reflect the influence of a network of interdependent variables, such as donor, cell type, licensing, T cell activation status, level of contact, and balance in Th17-enhancing (i.e., TGF-b/IL-6) versus inhibitory (e.g., IDO, PGE 2 ) factors (3,41).…”
Section: Discussionmentioning
confidence: 99%
“…As to IFN-g concentrations they were very similar in all culture conditions. Discussion BM-derived MSCs display, in vitro and in vivo, immunosuppressive activity on activated T cells [28], dendritic cells [29,30], and NK cells [31], whereas a direct immunomodulatory effect of MSCs on B cells is still a matter of controversy [9,11,26,32,33]. Similar experimental set-ups, from independent laboratories, using cocultures of MSCs and purified/sorted B cells stimulated with CpG, CD40L, anti-Ig antibodies, IL-2, IL-4, and IL-10 gave conflicting results for what concerns B-cell proliferation and antibody production [8,9,11].…”
Section: The Role Of Cell Contact and Soluble Factorsmentioning
confidence: 99%
“…For example, in one study MSCs exhibited their typical suppressive phenotype when added early to cell cultures in the presence of CD4(+) T cell polarizing stimuli. However, once T cell activation had occurred, MSCs showed an opposite stimulating effect on Th17 cells, while leaving T regulatory (Treg) IL-10-producing cells unchanged [34]. These results suggest that the therapeutic use of MSCs in vivo might exert opposing effects on disease activity, according to the time of therapeutic application and the level of effector T cell activation, especially in autoimmune disease models [34].…”
Section: Msc Time Of Administrationmentioning
confidence: 99%