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Burns represent one of the worldwide leading causes of injury. Burn wounds are associated with increased mortality and morbidity, especially the impaired quality of life due to hypertrophic scarring, scar pain and itching, paresthesia, and contractures. To properly influence the burn wound healing, it is important to establish a correct classification of the acute injury and to understand the main phase of burn wound healing process. There are various local and systemic factors that can be influenced to obtain proper healing. The most important factors include local necrosis and infection, increased local pressure and edema, anemia, hypoxia, hypotension, the presence of important chronic disease and medication, immunosuppression, nutritional status, age, and body constitution. After adequate fluid resuscitation and patient stabilization, the main step is represented by the detachment of the devitalized tissues and rapid coverage of the lesion. There are various methods to be used, like autologous or allogenic skin grafting, the use of skin substitutes, or tissue bioengineering. Knowing all these aspects, allows clinicians to properly define a therapeutic management for patients presenting severe burns. [ABSTRACT FROM AUTHOR]

Upper extremities are frequently involved in fire burns due to the natural protective reflexes. The presence of bilateral Dupuytrenʼs disease and COVID-19 disease in patients with circumferential upper extremity burns can negatively impact the outcome, through severe contracture and a tendency to hypoxia or infections, which affects normal wound healing. Enzymatic debridement with a concentrate of proteolytic enzymes enriched in bromelain prevents compartment syndrome development in such patients, reduces blood loss, surgery duration, and appears to favor a more rapid recovery. [ABSTRACT FROM AUTHOR]

Adipose-derived mesenchymal stromal cells (ADSC) are a promising source for cellular therapy of chronic wounds. However, the limited life span during in vitro expansion impedes their extensive use in clinical applications and basic research. We hypothesize that by introduction of an ectopic expression of telomerase into ADSC, the cells' lifespans could be significantly extended. To test this hypothesis, we aimed at engineering an immortalized human ADSC line using a lentiviral transduction with human telomerase (hTERT). ADSC were transduced with a third-generation lentiviral system and a hTERT codifying plasmid (pLV-hTERT-IRES-hygro). A population characterized by increased hTERT expression, extensive proliferative potential and remarkable (potent) multilineage differentiation capacity was selected. The properties for wound healing of this immortalized ADSC line were assessed after 17 passages. Their secretome induced the proliferation and migration of keratinocytes, dermal fibroblasts, and endothelial cells similarly to untransduced ADSC. Moreover, they sustained the complete re-epithelialization of a full thickness wound performed on a skin organotypic model. In summary, the engineered immortalized ADSC maintain the beneficial properties of parent cells and could represent a valuable and suitable tool for wound healing in particular, and for skin regenerative therapy in general. [ABSTRACT FROM AUTHOR]

The development of stem cell technology in combination with advances in biomaterials has opened new ways of producing engineered tissue substitutes. In this study, we investigated whether the therapeutic potential of an acellular porous scaffold made of type I collagen can be improved by the addition of a powerful trophic agent in the form of mesenchymal stromal cells conditioned medium (MSC‐CM) in order to be used as an acellular scaffold for skin wound healing treatment. Our experiments showed that MSC‐CM sustained the adherence of keratinocytes and fibroblasts as well as the proliferation of keratinocytes. Moreover, MSC‐CM had chemoattractant properties for keratinocytes and endothelial cells, attributable to the content of trophic and pro‐angiogenic factors. Also, for the dermal fibroblasts cultured on collagen scaffold in the presence of MSC‐CM versus serum control, the ratio between collagen III and I mRNAs increased by 2‐fold. Furthermore, the gene expression for α‐smooth muscle actin, tissue inhibitor of metalloproteinase‐1 and 2 and matrix metalloproteinase‐14 was significantly increased by approximately 2‐fold. In conclusion, factors existing in MSC‐CM improve the colonization of collagen 3D scaffolds, by sustaining the adherence and proliferation of keratinocytes and by inducing a pro‐healing phenotype in fibroblasts. [ABSTRACT FROM AUTHOR]

Hydrotherapy represents the use of water for medical purpose, being involved in burn wound care since the 17th century. Burn wound cleansing, performed daily, twice a day, or as needed, as part of standard care, should be scheduled by a burn surgeon and supervised by proper specialists. It can be performed by various methods, like shower, immersion, bedside irrigation or wiping. Due to the high risk of cross-contamination, immersion is no longer recommended. Tap water seems to be superior to saline solution in burn wound care, and adjuvants can be added, especially chlorhexidine, povidone-iodine, or special detergents. Disposable plastic sheets use during showering and the following of cleaning protocols for washing areas have decreased the risk of infection. Apart from the wound-cleansing role, hydrotherapy reduces itching and pain, improves wound healing, favours early mobilization and increases patients’ comfort. Controversy persists around the optimal method and appropriate solutions for cleaning burn injuries and clinical studies are further required to solve this matter. In the absence of standardized recommendations, most burn centers are guided by experience. [ABSTRACT FROM AUTHOR]