{"title":"Synergistic effects of amniotic membrane and human milk exosomes on burn wound healing","authors":"Ferda Işık , Elif Tufan , Güzin Göksun Sivas , Esin Ak , Aleyna Muhan , Göksel Şener , Tugba Tunali-Akbay","doi":"10.1016/j.burns.2025.107622","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Thermal burns are one of the most common burns. Studies are ongoing to develop synthetic or biological wound dressings to ensure painless and scarless healing of burn wounds.</div></div><div><h3>Objectives</h3><div>This study aimed to combine the human amniotic membrane with breast milk-based exosomes and investigate their effects on burn wound healing.</div></div><div><h3>Methods</h3><div>24 Wistar Albino rats weighing 200–250 g and of both genders were used. Rats were divided into control, burn, burn+human amniotic membrane (hAM) and burn+hAM+Exosomes (hAM+Exo) groups. Burn injury was induced by exposing the back of rats to 90 °C water for 10 s. Rats were treated with hAM and hAM+ Exo for seven days after injury. At the end of the 7th day, the skin samples were taken and analyzed biochemically and histologically. TNF-<span><math><mi>α</mi></math></span>, IL-1<span><math><mi>β</mi></math></span>, type III collagen, malondialdehyde (MDA), glutathione (GSH), total protein, superoxide dismutase (SOD), and tissue factor (TF) activity were determined in skin samples.</div></div><div><h3>Results</h3><div>In the burn group, skin TNF- <span><math><mi>α</mi></math></span> levels increased, IL-1<span><math><mi>β</mi></math></span> and type III collagen levels decreased. Wound healing therapy reversed these results. In the hAM+Exo group, the TNF<em>-</em> <span><math><mi>α</mi></math></span> level was lower, and IL-1<span><math><mi>β</mi></math></span> and type III collagen levels were higher than in the hAM group. MDA and total protein levels increased, and GSH, tissue factor, and SOD activities decreased in the burn group. In hAM and hAM+Exo groups, MDA levels decreased, and GSH and SOD activity increased compared to the burn group. The GSH levels were significantly higher in the hAM+Exo group compared to the hAM group.</div></div><div><h3>Conclusion</h3><div>In conclusion, combining exosomes and amniotic membrane induced changes consistent with better wound healing than amniotic membrane alone.</div></div>","PeriodicalId":50717,"journal":{"name":"Burns","volume":"51 7","pages":"Article 107622"},"PeriodicalIF":3.2000,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Burns","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0305417925002517","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CRITICAL CARE MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Thermal burns are one of the most common burns. Studies are ongoing to develop synthetic or biological wound dressings to ensure painless and scarless healing of burn wounds.
Objectives
This study aimed to combine the human amniotic membrane with breast milk-based exosomes and investigate their effects on burn wound healing.
Methods
24 Wistar Albino rats weighing 200–250 g and of both genders were used. Rats were divided into control, burn, burn+human amniotic membrane (hAM) and burn+hAM+Exosomes (hAM+Exo) groups. Burn injury was induced by exposing the back of rats to 90 °C water for 10 s. Rats were treated with hAM and hAM+ Exo for seven days after injury. At the end of the 7th day, the skin samples were taken and analyzed biochemically and histologically. TNF-, IL-1, type III collagen, malondialdehyde (MDA), glutathione (GSH), total protein, superoxide dismutase (SOD), and tissue factor (TF) activity were determined in skin samples.
Results
In the burn group, skin TNF- levels increased, IL-1 and type III collagen levels decreased. Wound healing therapy reversed these results. In the hAM+Exo group, the TNF- level was lower, and IL-1 and type III collagen levels were higher than in the hAM group. MDA and total protein levels increased, and GSH, tissue factor, and SOD activities decreased in the burn group. In hAM and hAM+Exo groups, MDA levels decreased, and GSH and SOD activity increased compared to the burn group. The GSH levels were significantly higher in the hAM+Exo group compared to the hAM group.
Conclusion
In conclusion, combining exosomes and amniotic membrane induced changes consistent with better wound healing than amniotic membrane alone.
期刊介绍:
Burns aims to foster the exchange of information among all engaged in preventing and treating the effects of burns. The journal focuses on clinical, scientific and social aspects of these injuries and covers the prevention of the injury, the epidemiology of such injuries and all aspects of treatment including development of new techniques and technologies and verification of existing ones. Regular features include clinical and scientific papers, state of the art reviews and descriptions of burn-care in practice.
Topics covered by Burns include: the effects of smoke on man and animals, their tissues and cells; the responses to and treatment of patients and animals with chemical injuries to the skin; the biological and clinical effects of cold injuries; surgical techniques which are, or may be relevant to the treatment of burned patients during the acute or reconstructive phase following injury; well controlled laboratory studies of the effectiveness of anti-microbial agents on infection and new materials on scarring and healing; inflammatory responses to injury, effectiveness of related agents and other compounds used to modify the physiological and cellular responses to the injury; experimental studies of burns and the outcome of burn wound healing; regenerative medicine concerning the skin.