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English Abstract
Journal Article
[Comparison of the regenerative cytokine profile of adipose-derived stromal cells (ASCs) harvested via abdominoplasty, suction-assisted liposuction (SAL) and ultrasound-assisted liposuction (UAL)].
INTRODUCTION: Mesenchymal stem cells are already used in numerous areas of medicine. In the field of plastic surgery, the main focus of recent research has been to utilise adipose-derived stromal cells (ASCs), mainly harvested via liposuction. The ability to release regenerative cytokines is supposed to be the key mechanism for the therapeutic efficacy of ASCs. There are currently a variety of methods and devices in clinical use for harvesting lipoaspirate and consequently ASCs. For most of these devices, the effect on the regenerative cytokine profile of ASCs is unknown. The aim of this study is to compare the expression of key regenerative cytokines of ASCs derived by three standard procedures of plastic surgery: abdominoplasty, suction-assisted liposuction (SAL) and ultrasound-assisted liposuction (UAL).
PATIENTS AND METHODS: UAL and SAL lipoaspirates were obtained from 3 healthy female volunteers before abdominoplasty was performed in the same patients. ASCs were isolated from UAL and SAL lipoaspirates as well as from abdominoplasty resections and RNA expression of important regenerative cytokines (HGF (hepatocyte growth factor), FGF-2 (basic fibroblast growth factor), MCP-1 (monocyte chemotactic protein 1), SDF-1 (stromal cell-derived factor 1) and VEGF (vascular endothelial growth factor) was compared.
RESULTS: There was no difference in the expression of HGF, FGF-2, SDF-1 and VEGF between the individual samples, but we were able to demonstrate significantly increased expression of MCP-1 in ASCs obtained from UAL lipoaspirate.
CONCLUSION: UAL and SAL lipoaspirates are suitable for obtaining functional ASCs and are comparable to minimally manipulated cells from abdominoplasty resections.
PATIENTS AND METHODS: UAL and SAL lipoaspirates were obtained from 3 healthy female volunteers before abdominoplasty was performed in the same patients. ASCs were isolated from UAL and SAL lipoaspirates as well as from abdominoplasty resections and RNA expression of important regenerative cytokines (HGF (hepatocyte growth factor), FGF-2 (basic fibroblast growth factor), MCP-1 (monocyte chemotactic protein 1), SDF-1 (stromal cell-derived factor 1) and VEGF (vascular endothelial growth factor) was compared.
RESULTS: There was no difference in the expression of HGF, FGF-2, SDF-1 and VEGF between the individual samples, but we were able to demonstrate significantly increased expression of MCP-1 in ASCs obtained from UAL lipoaspirate.
CONCLUSION: UAL and SAL lipoaspirates are suitable for obtaining functional ASCs and are comparable to minimally manipulated cells from abdominoplasty resections.
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