4.7 Article

Mesenchymal Stem Cells and Myeloid-Derived Suppressor Cells Interplay in Adjuvant-Induced Arthritis Rat Model

Journal

INTERNATIONAL IMMUNOPHARMACOLOGY
Volume 120, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.intimp.2023.110300

Keywords

Adjuvant Induced Arthritis; Mesenchymal Stem Cells; Myeloid-Derived Suppressor Cells; Flow cytometry

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There is limited research on the biological relationship between myeloid-derived suppressor cells (MDSCs) and mesenchymal stem cells (MSCs). This study examined their cooperation in a rat model of adjuvant-induced arthritis (AIA). Results showed that MDSCs played various roles in autoimmunity and MSCs administration improved cytokine levels, suggesting their potential application in immunotherapy for arthritis.
There has not been much researchs on the biological relationship between myeloid-derived suppressor cells (MDSCs) and mesenchymal stem cells (MSCs). The goal of the current work is to examine how these cells cooperate with one another in a rat model of adjuvant-induced arthritis (AIA). Three groups of equal numbers of rats were created; the first group served as the control. Complete Freund's adjuvant (CFA) was injected into the second group to induce AIA. The third group underwent MSCs treatment. Three weeks later, ANA, IL-1 beta, IL-4, IL-6, IL-10, TNF-alpha, IFN-gamma, M CSF, iNOS and Arg-1 were determined using ELISA. Flowcytometric studies for MDSCs using CD11bc + and His48 + antibodies were performed. Current results showed significantly higher levels of WBCs, ANA, IL-1, IL-4, IL-6, IL-10, TNF-alpha, M CSF, iNOS and Arg-1 along with a significant rise in MDSCs % in the AIA group compared to the control group. As opposed to AIA animals, MSCs administration resulted in a considerable improvement in cytokine levels, supporting the immunomodulation function of MSCs. Histological examination of the joints in the AIA group revealed articular cartilage degradation as well as infiltration of inflammatory cells and fibroplasia. These several evidences suggested that MDSCs may perform various roles in autoimmunity. Understanding how MDSCs and MSCs contribute to arthritis may help their prospective application in immunotherapy. Therefore, the reciprocal collaboration of MSCs and MDSCs must therefore be the subject of new investigations, which can offer new platforms for the development of more effective and individualized therapies for the treatment of immunological illnesses.

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