Inhibition of lymphocyte proliferation: An ability shared by murine mesenchymal stem cells, dermal fibroblasts and chondrocytes

Transplant Immunology
Shang ZhangChanglin Liu

Abstract

It has been demonstrated that mesenchymal stem cells (MSCs) have potent immunosuppressive capacities. But it is controversial whether differentiated mature stromal cells (SCs) share the immunosuppressive capacities. A previous study examined the ability of SCs from different human tissue sites to inhibit the proliferation of lymphocytes. The results are all positive but the mechanism isn't clear, and few mouse data have been published on this topic. Using an efficient mixed cell culture assay, our in vitro data show that the anti-proliferative ability of murine MSCs on lymphocytes is shared by mature murine SCs, i.e. chondrocytes and fibroblasts. Though conflicting results have been published, our results suggest that nitric oxide and IFN-γ are critical to the immunosuppressive effect. We also demonstrate that murine MSCs cultivated in chondrogenic differentiation medium still possess the anti-proliferative capacities on lymphocytes in vitro.

Citations

Apr 8, 2020·Experimental and Therapeutic Medicine·Chengcheng ZhengZuyue Sun

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