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The Immunomodulatory Effects of Adipose-Derived Mesenchymal Stem Cells and Mesenchymal Stem Cells-Conditioned Medium in Chronic Colitis Publisher Pubmed



Heidari M1 ; Pouya S1 ; Baghaei K2 ; Aghdaei HA2 ; Namaki S1 ; Zali MR3 ; Hashemi SM1, 4
Authors
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Authors Affiliations
  1. 1. Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Basic and Molecular Epidemiology of Gastrointestinal Disorder Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Science, Tehran, Iran
  3. 3. Gastroenterology and Liver Disease Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Science, Tehran, Iran
  4. 4. Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Source: Journal of Cellular Physiology Published:2018


Abstract

Inflammatory bowel disease (IBD) as a chronic recurrent disorder is characterized by mucosal immune response dysregulation, which is more prevalent in the youth. Adipose-derived mesenchymal stem cells (ADMSCs) are the multipotent cells that can be effective in immune response regulation via cell–cell interaction and their secretions. In this study, the effects of ADMSCs and mesenchymal stem cell-conditioned medium (MSC-CM) were evaluated on dextran sulfate sodium (DSS)-induced colitis in mice. Chronic colitis was induced in female C57BL/6 mice using 2% DSS in drinking water for three cycles; there were 4 days of DSS-water administration that was followed by 7 days of DSS-free water, in a cycle. ADMSCs, 106 cells per mouse, were injected intraperitoneally (IP), whereas the MSC-CM injection was also performed six times from the last day of DSS in Cycle 1. Clinical symptoms were recorded daily. The colon pathological changes, cytokine levels, and regulatory T (Treg) cell percentages were then analyzed. After receiving ADMSCs and MSC-CM in colitis mice, the clinical symptoms and disease activity index were improved and the survival rate was increased. The histopathological examination also showed tissue healing in comparison with the nontreated group. In addition, the increased level of transforming growth factor beta, increased percentage of Treg cells, increased level of interleukin (IL)-10, and decreased level of IL-17 were observed after the treatment. This study showed the regulatory effects of ADMSCs and MSC-CM on inflammatory responses. Therefore, the use of ADMSCs and MSC-CM can be introduced as a new and effective therapeutic approach for patients with colitis. © 2018 Wiley Periodicals, Inc.
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