scholarly journals The therapeutic potential of MSC-EVs as a bioactive material for wound healing

2022 ◽  
Author(s):  
Yachen Hou ◽  
Jingan Li ◽  
Shaokang Guan ◽  
Frank Witte
Keyword(s):  
Wound Healing ◽  
Therapeutic Potential ◽  
Bioactive Material

Evaluation of Potential Application of Wharton’s Jelly-Derived Human Mesenchymal Stromal Cells and its Conditioned Media for Dermal Regeneration using Rat Wound Healing Model

2021 ◽  
pp. 1-14
Author(s):  
Caroline Mathen ◽  
Mrunal Ghag Sawant ◽  
Raghubansh Gupta ◽  
Wilfrid Dsouza ◽  
Shilpa G. Krishna
Keyword(s):  
Wound Healing ◽  
Mesenchymal Stromal Cells ◽  
Stromal Cells ◽  
Therapeutic Potential ◽  
Wound Care ◽  
Free Cell ◽  
Conditioned Media ◽  
Human Umbilical Cord ◽  
Human Mscs ◽  
Wound Model

Mesenchymal stromal cells and the derived conditioned media represent an area of tremendous medical interest and, among other clinical applications, are currently being extensively explored for wound healing. The aim of this study was to comparatively evaluate the wound healing potential of xeno-free human umbilical cord-derived mesenchymal stromal cells (MSCs) and the conditioned media (CM) in a full-thickness excision wound model in rats. The evaluation parameters included rate of wound healing, serum cytokine analyses, collagen content, histopathology, and hyperspectral imaging as an independent qualitative and quantitative tool. Both the cell-based and cell-free approaches scored better in lower inflammation, as evidenced in lower IL-10 and stable IL-6 levels, and improved rate of wound healing (<i>p</i> &#x3c; 0.0001). More importantly, no adverse reaction or rejection was observed although human MSCs and CM were used in a xenogeneic model. The presence of hFGF, hHGF, hGCSF, hIL-1Ra, hVEGF, and hIL-6 in the secretome may elucidate the regenerative potential of the xeno-free cell-based and cell-free approaches which have translational value for advanced wound care. The results revealed the therapeutic potential of both the cell-based and cell-free approaches for wound healing.

scholarly journals A Comprehensive Review on Therapeutic Potential on Euphorbia hirta Lin

2021 ◽  
pp. 713-718
Author(s):  
Vaishnavi Kalode ◽  
Manish Gagarani ◽  
Devyani Awari ◽  
Swapnali Mankar ◽  
Ashwini Armarkar ◽  
...  
Keyword(s):  
Wound Healing ◽  
Traditional Medicine ◽  
Muscle Relaxant ◽  
Therapeutic Potential ◽  
Comprehensive Review ◽  
Euphorbia Hirta ◽  
Respiratory Problems ◽  
Annual Herb ◽  
Plant Components

Euphorbia hirta Linn, a representative of the Euphorbiaceae family, is a widespread annual herb found in wastelands in humid conditions. The plant is high in phytochemicals such as tannin, quercetin, and phytosterol, however there are few phytopharmacological investigations on it. Plant components are normally employed in traditional medicine to treat respiratory problems, gastrointestinal issues, wound healing, and other ailments. The steroid of E. hirta was found to have CNS depressive and muscle relaxant effects, as well as a sub-maximal anti-stress and anxiolytic impact.

scholarly journals Salivary Trefoil Factor Family (TFF) Peptides and Their Roles in Oral and Esophageal Protection: Therapeutic Potential

2021 ◽  
Vol 22 (22) ◽  
pp. 12221
Author(s):  
Werner Hoffmann
Keyword(s):  
Wound Healing ◽  
Therapeutic Potential ◽  
Artificial Saliva ◽  
Human Saliva ◽  
Immune Defense ◽  
Protective Effects ◽  
Trefoil Factor Family ◽  
Tff Peptides ◽  
Antimicrobial Barrier

Human saliva is a complex body fluid with more than 3000 different identified proteins. Besides rheological and lubricating properties, saliva supports wound healing and acts as an antimicrobial barrier. TFF peptides are secreted from the mucous acini of the major and minor salivary glands and are typical constituents of normal saliva; TFF3 being the predominant peptide compared with TFF1 and TFF2. Only TFF3 is easily detectable by Western blotting. It occurs in two forms, a disulfide-linked homodimer (Mr: 13k) and a high-molecular-mass heterodimer with IgG Fc binding protein (FCGBP). TFF peptides are secretory lectins known for their protective effects in mucous epithelia; the TFF3 dimer probably has wound-healing properties due to its weak motogenic effect. There are multiple indications that FCGBP and TFF3-FCGBP play a key role in the innate immune defense of mucous epithelia. In addition, homodimeric TFF3 interacts in vitro with the salivary agglutinin DMBT1gp340. Here, the protective roles of TFF peptides, FCGBP, and DMBT1gp340 in saliva are discussed. TFF peptides are also used to reduce radiotherapy- or chemotherapy-induced oral mucositis. Thus, TFF peptides, FCGBP, and DMBT1gp340 are promising candidates for better formulations of artificial saliva, particularly improving wound healing and antimicrobial effects even in the esophagus.

scholarly journals Bioactive Agent-Loaded Electrospun Nanofiber Membranes for Accelerating Healing Process: A Review

Membranes ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 702
Author(s):  
Seyyed-Mojtaba Mousavi ◽  
Zohre Mousavi Nejad ◽  
Seyyed Alireza Hashemi ◽  
Marjan Salari ◽  
Ahmad Gholami ◽  
...  
Keyword(s):  
Wound Healing ◽  
Chronic Wounds ◽  
Therapeutic Potential ◽  
Healing Process ◽  
Wound Dressings ◽  
Future Research ◽  
Wound Healing Process ◽  
Nanofiber Membranes ◽  
Bioactive Agents ◽  
Bioactive Agent

Despite the advances that have been achieved in developing wound dressings to date, wound healing still remains a challenge in the healthcare system. None of the wound dressings currently used clinically can mimic all the properties of normal and healthy skin. Electrospinning has gained remarkable attention in wound healing applications because of its excellent ability to form nanostructures similar to natural extracellular matrix (ECM). Electrospun dressing accelerates the wound healing process by transferring drugs or active agents to the wound site sooner. This review provides a concise overview of the recent developments in bioactive electrospun dressings, which are effective in treating acute and chronic wounds and can successfully heal the wound. We also discuss bioactive agents used to incorporate electrospun wound dressings to improve their therapeutic potential in wound healing. In addition, here we present commercial dressings loaded with bioactive agents with a comparison between their features and capabilities. Furthermore, we discuss challenges and promises and offer suggestions for future research on bioactive agent-loaded nanofiber membranes to guide future researchers in designing more effective dressing for wound healing and skin regeneration.

scholarly journals Adipose Stem Cells from Type 2 Diabetic Mice Exhibit Therapeutic Potential in Wound Healing

2020 ◽  
Author(s):  
Yongfa Sun ◽  
Lili Song ◽  
Yong Zhang ◽  
Hongjun Wang ◽  
Xiao Dong
Keyword(s):  
Wound Healing ◽  
Growth Factor ◽  
Transforming Growth Factor ◽  
Therapeutic Potential ◽  
Diabetic Patients ◽  
Therapeutic Effects ◽  
Skin Damage ◽  
Impaired Wound Healing ◽  
Collagen Iii

Abstract BACKGROUND: Diabetic patients suffer from impaired wound healing. Mesenchymal stem cell (MSC) therapy represents a promising approach toward improving skin wound healing through release of soluble growth factors and cytokines that stimulate new vessel formation and modulate inflammation. Whether adipose-derived MSCs (ASCs) from type 2 diabetes donors are suitable for skin damage repair remains largely unknown. METHODS: In this study, we compared the phenotype and functionality of ASCs harvested from high fat diet (HFD) and streptozotocin (STZ)-induced T2D or control mice, and assessed their abilities to promote wound healing in an excisional wound splinting mouse model with T2D. RESULTS: T2D ASCs expressed similar cellular markers as control ASCs, but secreted less hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), and transforming growth factor β (TGF-β). T2D ASCs were somewhat less effective in promoting healing of the wound, as manifested by slightly reduced re-epithelialization, cutaneous appendage regeneration, and collagen III deposition in wound tissues. In vitro, T2D ASCs promoted proliferation and migration of skin fibroblasts to a comparable extent as control ASCs via suppression of inflammation and macrophage infiltration. CONCLUSIONS: From these findings, we conclude that, although ASCs from T2D mice are marginally inferior to control ASCs, they possess comparable therapeutic effects in wound healing.

scholarly journals Optimal H2O2 preconditioning to improve BMSCs’ engraftment  in wounds healing

2020 ◽  
Author(s):  
Ling Guo ◽  
Ya Zhang ◽  
Juan Du ◽  
Dan Feng Yuan ◽  
Shu Zhang ◽  
...  
Keyword(s):  
Wound Healing ◽  
Therapeutic Strategy ◽  
Wound Closure ◽  
Therapeutic Potential ◽  
Caspase 9 ◽  
Promising Candidate ◽  
Optimal Protocol ◽  
Marrow Mesenchymal Stem Cells ◽  
Gsk 3Β ◽  
Migration Capacity

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. The optimal protocol for BMSCs preconditioned with H2O2 was investigated, and the therapeutic efficacy of preconditioned BMSCs in wounds was evaluated. Methods. Mouse BMSCs were exposed to various concentrations of H2O2, and their functions were assessed; The H2O2-preconditioned BMSCs were transplanted into mice with full-thickness excisional wounds. Wound analysis was performed to assess the transplantation efficacy. Results. Treatment BMSCs with 50 µM H2O2 for 12 h could enhance their proliferation, migration and survival by maximizing up-regulation the 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-BMSCs apoptosis was significantly attenuated by an obviously decreased ratio of Bax/Bcl-2 and cleaved caspase-9/3 expression. After transplantation of BMSCs, the migration of H2O2 preconditioned-BMSCs into the wounds was dramatically increased compared to un-preconditioned-BMSCs, and had an increased microvessel density and wound closure speed. Conclusions. The findings suggested that 50 µM H2O2 pretreated for 12 h is the optimal precondition for the transplantation of BMSC, 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.

scholarly journals MFG-E8 accelerates wound healing in diabetes by regulating “NLRP3 inflammasome-neutrophil extracellular traps” axis

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Wei Huang ◽  
Jinyu Jiao ◽  
Ju Liu ◽  
Meng Huang ◽  
Yanyan Hu ◽  
...  
Keyword(s):  
Wound Healing ◽  
Lupus Erythematosus ◽  
Nlrp3 Inflammasome ◽  
Milk Fat ◽  
Therapeutic Potential ◽  
Neutrophil Extracellular Traps ◽  
Skin Wound ◽  
Diabetic Patients ◽  
High Dose ◽  
Extracellular Traps

Abstract Sustained activation of NLRP3 inflammasome and release of neutrophil extracellular traps (NETs) impair wound healing of diabetic foot ulcers (DFUs). Our previous study reported that milk fat globule epidermal growth factor VIII (MFG-E8) attenuates tissue damage in systemic lupus erythematosus. However, the functional effect of MFG-E8 on “NLRP3 inflammasome-NETs” inflammatory loop in wound healing of diabetes is not completely elucidated. In this study, neutrophils from DFU patients are susceptible to undergo NETosis, releasing more NETs. The circulating levels of NET components neutrophil elastase and proteinase 3 and inflammatory cytokines IL-1β and IL-18 were significantly elevated in DFU patients compared with healthy controls or diabetic patients, in spite of higher levels of MFG-E8 in DFU patients. In Mfge8−/− diabetic mice, skin wound displayed exaggerated inflammatory response, including leukocyte infiltration, excessive activation of NLRP3 inflammasome (release of higher IL-1β, IL-18, and TNF-α), largely lodged NETs, resulting in poor angiogenesis and wound closure. When stimulated with high-dose glucose or IL-18, MFG-E8-deficient neutrophils release more NETs than WT neutrophils. After administration of recombinant MFG-E8, IL-18-primed NETosis of WT or Mfge8−/− neutrophils was significantly inhibited. Furthermore, NET and mCRAMP (component of NETs, the murine equivalent of cathelicidin LL-37 in human)-mediated activation of NLRP3 inflammasome and production of IL-1β/IL-18 were significantly elevated in Mfge8−/− macrophages compared with WT macrophages, which were also significantly dampened by the administration of rmMFG-E8. Therefore, our study demonstrated that as inhibitor of the “NLRP3 inflammasome-NETs” inflammatory loop, exogenous rMFG-E8 improves angiogenesis and accelerates wound healing, highlighting possible therapeutic potential for DFUs.

Sign in / Sign up

Export Citation Format

Share Document