Mesenchymal Stem Cell-derived Pleiotropic Factors(Chinese People's Liberation Army General Hospital)

Chronic wounds do not heal for prolonged periods of time with the significant financial burden on the healthcare system. It has become increasingly essential to improve our clinical treatments. The most promising potential treatment options rely on stem cell-based therapies. A large body of evidence indicates that mesenchymal stem cells can promote wound closure of chronic wounds in animal models and in preclinical studies. MSCs efficacy depends mostly on their paracrine activity. All the bioactive factors and cytokines in MSCs secretions constitute can be collected in the conditioned medium. In here, stem cell-derived conditioned medium was further made into a lyophilized powder. Patients with chronic wounds were enrolled. The wounds in control group treated with fibroblast growth factor commonly used in clinical practice. The wounds in experimental group treated with lyophilized powder. The effectiveness and safety of lyophilized powder will evaluate for chronic wounds.

Skin grafting is a standard treatment for deep wounds, but care of the donor site after transplantation is very important. The means of accelerating wound healing can increase overall patient satisfaction. In recent years, cytokine therapy has been an important strategy to promote tissue repair.Mesenchymal stem cells (MSC) have been considered the star cells that promote tissue repair. It works mainly through paracrine. Many biological effectors, including IGF-1, vascular endothelial growth factor (VEGF), TGF-β1, and hepatocyte growth factor (HGF), have been found and reported in various MSC conditioned media (MSC-CM), And play a role in promoting tissue repair and regeneration. In here, we aim to explore the MSC-CM-derived pleiotropic factor in treating donor sites and further evaluate its safety and effectiveness