ArticleAesthetic plastic surgery2025
Constructing the Well Regenerated Decellularized Adipose Tissue Using External Volume Expansion Device.
Article in Aesthetic plastic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
Funding
Abstract
backgroundExternal volume expansion (EVE) devices has been demonstrated to enhance the survival of fat grafts. Decellularized adipose tissue (DAT) serves as a promising scaffold for adipose regeneration; however, the effectiveness of adipose regeneration in DAT remains limited, and the underlying mechanisms of its regeneration require further investigation.
objectiveThis study explores the potential of EVE technology to enhance DAT-mediated adipogenesis by facilitating cellular recruitment and establishing a microenvironment conducive to adipose tissue regeneration.
methodsDAT was injected into the dorsal area of rats, followed by daily treatment with an EVE suction device for 10 hours per day over 14 days. Control groups underwent transplantation without suction. After the treatment period, tissue samples were collected and analyzed. This included volume measurement, H&E staining, immunofluorescence staining for CD34, CD90, CD68, CD31, and perilipin, electron microscopy for microscopic analysis, and ELISA analysis for IL1, TNFα, CCL2, and CXCL12.
resultsFourteen days post-transplantation, the volume of DAT significantly increased in the EVE group compared to the control group. Histological H&E staining revealed a higher peripheral region in the EVE group. Electron microscopy examination showed that EVE suction led to increased porosity in the DAT material, with a greater number of cells adhering to the material. Immunofluorescence staining for CD34/CD90 adipose-derived stem cells also showed a significant increase in the EVE group. The presence of CD68-positive macrophages increased after EVE suction. Evaluation of vascularization using CD31 staining showed a higher level of vascularization in the EVE group compared to the control group. ELISA analysis of IL-1, TNF-α, CCL2, and CXCL12 levels demonstrated that the EVE group effectively increased the levels of adipogenic factors within the DAT.
conclusionEVE enhances DAT-mediated adipogenesis by promoting stem cell recruitment, macrophage activation, and adipogenesis-related cytokine expression, ultimately improving the regeneration of functional adipose tissue. LEVEL OF EVIDENCE I: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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