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Potential therapeutic role of microvesicles derived from mesenchymal stem cells and platelet-rich plasma in murine burn wound healing: scar regulation and antioxidant mechanism
- Department of Anatomy and Embryology, Faculty of Medicine, Cairo University, Egypt
- Anatomy and Embryology Department, Faculty of Medicine, Ain Shams University, Egypt
open access
Abstract
Background: Microvesicles (MVs) derived from mesenchymal stem cells exhibited
an emerging promising therapy in many animal model diseases. Post-burn scars
represent one of the significant challenges in wound healing processes. The present
study investigated the possible role of MVs derived from mesenchymal stem cells
vs. platelet-rich plasma (PRP) in murine burn wound healing.
Materials and methods: Wistar rats (n = 40) were assigned into four equal
groups (control, burn, burn + PRP, burn + MVs). Small-sized burns were induced,
morphologically followed for 3 weeks, then rats were sacrificed and skin lesions
were analysed biochemically and immunohistochemically.
Results: Both MVs and PRP modulated the burn healing process with better results
in the MVs group than in PRP. MVs significantly (p < 0.05) accelerated burn
wound size healing and dramatically modulated tissue interleukin (IL)-10, IL-6, and
hyaluronidase. Both MVs and PRP significantly downregulated gene expression of
miRNA203 and alpha smooth muscle actin and immunoblotting analysis of matrix
metalloproteinases 3 and transforming growth factor beta compared with the
burn group. The immune-staining intensity of tumour necrosis factor alpha was
dramatically reversed in the MVs group compared with the burn group, whereas
that of connective tissue growth factor, collagen I and III was significantly reduced
in both groups. The antioxidant Nrf2 immune-staining intensity had been dramatically
enhanced particularly in MVs.
Conclusions: Microvesicles derived from mesenchymal stem cells and PRP may
improve burn wound healing via regulating scar formation and antioxidant mechanism.
Abstract
Background: Microvesicles (MVs) derived from mesenchymal stem cells exhibited
an emerging promising therapy in many animal model diseases. Post-burn scars
represent one of the significant challenges in wound healing processes. The present
study investigated the possible role of MVs derived from mesenchymal stem cells
vs. platelet-rich plasma (PRP) in murine burn wound healing.
Materials and methods: Wistar rats (n = 40) were assigned into four equal
groups (control, burn, burn + PRP, burn + MVs). Small-sized burns were induced,
morphologically followed for 3 weeks, then rats were sacrificed and skin lesions
were analysed biochemically and immunohistochemically.
Results: Both MVs and PRP modulated the burn healing process with better results
in the MVs group than in PRP. MVs significantly (p < 0.05) accelerated burn
wound size healing and dramatically modulated tissue interleukin (IL)-10, IL-6, and
hyaluronidase. Both MVs and PRP significantly downregulated gene expression of
miRNA203 and alpha smooth muscle actin and immunoblotting analysis of matrix
metalloproteinases 3 and transforming growth factor beta compared with the
burn group. The immune-staining intensity of tumour necrosis factor alpha was
dramatically reversed in the MVs group compared with the burn group, whereas
that of connective tissue growth factor, collagen I and III was significantly reduced
in both groups. The antioxidant Nrf2 immune-staining intensity had been dramatically
enhanced particularly in MVs.
Conclusions: Microvesicles derived from mesenchymal stem cells and PRP may
improve burn wound healing via regulating scar formation and antioxidant mechanism.
Keywords
microvesicles, stem cells, platelet-rich plasma, burn, miRNA203, rats
Title
Potential therapeutic role of microvesicles derived from mesenchymal stem cells and platelet-rich plasma in murine burn wound healing: scar regulation and antioxidant mechanism
Journal
Issue
Article type
Original article
Pages
656-667
Published online
2022-06-22
Page views
1260
Article views/downloads
900
DOI
Pubmed
Bibliographic record
Folia Morphol 2023;82(3):656-667.
Keywords
microvesicles
stem cells
platelet-rich plasma
burn
miRNA203
rats
Authors
R. A. Imam
M. M. Amer
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