Image Credit:J Cell Mol Anesth
Outline
Human Umbilical Cord Mesenchymal Stem Cells-Derived Exosomes Can Alleviate the Proctitis Model Through TLR4/NF-Kb Pathway
Authors
Abstract
Background: Proctitis is a significant concern of inflammatory bowel diseases, especially ulcerative colitis. Exosomes are a new method for treating many diseases by their immunosuppressive and tissue-repairing potential. Here, we tried Mesenchymal stem cells (MSCs)-derived Exosomes for treating the proctitis model of rats. Materials and Methods: Rats were assigned into four groups: sham, control group, rectal, and intraperitoneal exosome injection. The proctitis model was induced by rectal administration of 4% acetic acid. The exosome was derived from human MSCs isolated from human umbilical cords. After seven days, rectum samples were assessed for histopathological, IHC, and PCR analysis. Results: The histopathologic scores, collagen deposition, and the expression of NF-?B, TLR4, TNF?, IL-6, and TGF? were decreased in intraperitoneal exosome compared to controls. The result was not promising for the rectal administration of exosomes. Conclusion: Exosomes can suppress the inflammatory response in the proctitis model and improve the rectum's healing process. Exosomes can inhabit the NF-?B/TLR4 pathway and downstream pro-inflammatory cytokines. This study implicates the therapeutic benefits of exomes in treating proctitis.
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Copyright
© 2023, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.
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