Umbilical Cord Mesenchymal Stem Cells for Inhibiting the Fibrosis and Autoimmune Development in HOCl-Induced Systemic
Xin Jin1,2, Jiali Hou1,2, Ke Zheng1,2
1Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Sciences, Central South University, Changsha, China.
Background And Objectives:
Systemic scleroderma (SSc) is a rare and serious connective tissue disease, an autoimmune disease, and a rare refractory disease. In this study, preventive effect of single systemic human umbilical cord mesenchymal stem cells (UC-MSCs) transfusion on SSc was preliminarily explored.
Methods And Results:
SSc mouse model was established by daily intradermal injection of Hypochlorite (HOCl). SSc mice were treated by single transfusion of UC-MSCs at 0.625×105, 2.5×105 and 1×106 respectively. At the 42nd day of intradermal injection of HOCl, the symptoms showed up by skin and alveolar wall thickening, lymphocytic infiltration, increased collagen in skin/lung, and the increased proportion of CD3＋CD4＋CD25＋FoxP3＋ cells (a Treg subset) in spleen. After UC-MSCs transfusion, the degree of skin thickening, alveolar wall thickening and lymphocyte infiltration were decreased, the collagen sedimentation in skin/lung was decreased, and the proportion of CD3＋CD4＋CD25＋ FoxP3＋ cells was decreased.
Conclusions:
UC-MSC can achieve a preventive effect in SSc mice by fibrosis attenuation and immunoregulation.
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