scholarly journals Applications of Bone Marrow Mesenchymal Stem Cell and Bioscaffolds in Skin Wound Healing

2021 ◽  
Vol 7 (1) ◽  
pp. 29-37
Author(s):  
Farzaneh Chehelcheraghi ◽  

Introduction: Skin wound healing is a multi-step process. It involves coordinated interactions between growth factors, matrix, microenvironment around the wound, and various cells. Patients' quality of life in chronic wounds is affected because, in addition to sequential treatments, they incur significant medical costs. This review study aims to summarize the evidence and report current knowledge about tissue engineering, skin wound healing, and therapeutic strategies using bone marrow mesenchymal stem cells were performed. Methods: Thus, much effort has been focused on developing novel therapeutic approaches for wound treatment. Stem cell-based therapeutic strategies have been proposed to treat these wounds. They have shown significant potential for improving the speed and quality of wound healing and skin regeneration. A set of published data on the use of mesenchymal stem cells and a variety of biological scaffolds in wound healing is presented. Besides, we discussed different perspectives. Conclusion: We concluded that by activating bone marrow mesenchymal stem cells on a biological scaffold, the condition of the wound healing process can be improved. Keywords: Humans, Mesenchymal Stem Cells, Quality of Life, Tissue Engineering, Wound Healing, Skin, Stem Cells.

2020 ◽  
pp. 088532822096392
Author(s):  
Salma Abolgheit ◽  
Sally Abdelkader ◽  
Moustafa Aboushelib ◽  
Enas Omar ◽  
Radwa Mehanna

Background Over the past ten years, regenerative medicine has focused on the regeneration and the reconstruction of damaged, diseased, or lost tissues and organs. Skin, being the largest organ in the human body, had attained a good attraction in this field. Delayed wound healing is one of the most challenging clinical medicine complications. This study aimed to evaluate the collagen chitosan scaffold’s effect alone, or enriched with either bone marrow-derived mesenchymal stem cells (BM-MSCs) or their secreted extracellular vesicles (EVs) on the duration and quality of skin wound healing. Methods A full-thickness skin wound was induced on the back of 32 adult male Sprague-Dawley rats. The wounds were either covered with collagen chitosan scaffolds alone, scaffolds enriched with stem cells, or extracellular vesicles. Unprotected wounds were used as control. Healing duration, collagen deposition and alignment, CD 68+ macrophage count, and functional tensile strength of healed skin were assessed (α = 0.05, n = 8). Results The rate of skin healing was significantly accelerated in all treated groups compared to the control. Immuno-histochemical assessment of CD68+ macrophages showed enhanced macrophages count, in addition to higher collagen deposition and better collagen alignment in EVs and BM-MSCs treated groups compared to the control group. Higher tensile strength values reflected the better collagen deposition and alignment for these groups. EVs showed higher amounts of collagen deposition and better alignment compared to MSCs treated group. Conclusion The collagen chitosan scaffolds enriched with MSCs or their EVs improved wound healing and improved the quantity and remodeling of collagen with a better assignment to EVs.


2018 ◽  
Vol 90 ◽  
pp. 159-167 ◽  
Author(s):  
Zhang Lei ◽  
Gurankit Singh ◽  
Zhang Min ◽  
Chen Shixuan ◽  
Kaige Xu ◽  
...  

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Ling Guo ◽  
Juan Du ◽  
Dan-feng Yuan ◽  
Ya Zhang ◽  
Shu Zhang ◽  
...  

Abstract Background The transplantation of bone marrow mesenchymal stem cells (BMSCs) is a promising therapeutic strategy for wound healing. However, the poor migration capacity and low survival rate of transplanted BMSCs in wounds weaken their potential application. Objective To identify the optimal protocol for BMSCs preconditioned with H2O2 and improve the therapeutic efficacy using H2O2-preconditioned BMSCs in wound healing. Methods Mouse BMSCs were exposed to various concentrations of H2O2, and the key cellular functional properties were assessed to determine the optimal precondition with H2O2. The H2O2-preconditioned BMSCs were transplanted into mice with full-thickness excisional wounds to evaluate their healing capacity and tissue engraftment. Results Treatment BMSCs with 50 μM H2O2 for 12 h could significantly enhance their proliferation, migration, and survival by maximizing the upregulation of cyclin D1, SDF-1, and its receptors CXCR4/7 expressions, and activating the PI3K/Akt/mTOR pathway, but inhibiting the expression of p16 and GSK-3β. Meanwhile, oxidative stress-induced BMSC apoptosis was also significantly attenuated by the same protocol pretreatment with a decreased ratio of Bax/Bcl-2 and cleaved caspase-9/3 expression. Moreover, after the identification of the optimal protocol of H2O2 precondition in vitro, the migration and tissue engraftment of transfused BMSCs with H2O2 preconditioning were dramatically increased into the wound site as compared to the un-preconditioned BMSCs. The increased microvessel density and the speedy closure of the wounds were observed after the transfusion of H2O2-preconditioned BMSCs. Conclusions The findings suggested that 50 μM H2O2 pretreated for 12 h is the optimal precondition for the transplantation of BMSCs, which gives a considerable insight that this protocol may be served as a promising candidate for improving the therapeutic potential of BMSCs for wound healing.


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