Cell-assisted lipotransfer in the clinical treatment of facial soft tissue deformity

Ma, Li; Wen, Huicai; Jian, Xueping; Liao, Huaiwei; Sui, Yun‐Peng; Liu, Yanping; Guizhen, Xu

doi:10.4172/plastic-surgery.1000926

Cited by 5 publications

(4 citation statements)

References 52 publications

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“…Another major issue with fat grafting is its absence of reproducibility 16 . This could be attributed to variability in fat harvesting and processing methods 3 and patient factors.…”

Section: Discussionmentioning

confidence: 99%

“…26,44 High expression levels of VEGF-A, CD31, and v-WF in the ASCs and their high expression of NANOG and OCT4 transcription factors confirmed the cells adipose tissue-derived origin and their pluripotency, consistent with the findings of Domenis et al 45 Another major issue with fat grafting is its absence of reproducibility. 16 This could be attributed to variability in fat harvesting and processing methods 3 and patient factors. These can include decreased proliferation and differentiation potential of ASCs with age, BMI, diabetes mellitus, and exposure to radiotherapy and tamoxifen.…”

Section: Discussionmentioning

confidence: 99%

“…One of the main concerns in autologous fat grafting is the unpredictable resorption after transplantation 3 . In fact, the rate of resorption over time in the grafted site may range from 20% to 90% of the filled volume 15,16 . This could be attributed to the fact that the aspirated fat is poor in quality and has low number of adipose-derived stem cells (ASCs) 17 .…”

mentioning

confidence: 99%

“…3 In fact, the rate of resorption over time in the grafted site may range from 20% to 90% of the filled volume. 15,16 This could be attributed to the fact that the aspirated fat is poor in quality and has low number of adipose-derived stem cells (ASCs). 17 Therefore, optimizing methods of harvesting adipose tissue is of maximal importance 18,19 as it can have a significant impact on the yield and viability of isolated cells.…”

mentioning

confidence: 99%

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High-Quality Lipoaspirate Following 1470-nm Radial Emitting Laser-Assisted Liposuction

et al. 2022

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Background: Laser-assisted liposuction (LAL) has been used to maximize viable adipocyte yields in lipoaspirates, although optimizing tissue processing methods is still a challenge. A high-quality lipoaspirate has been a key factor for extended graft longevity. Objective: To assess the viability and potency of stromal vascular fraction (SVF) cells and adipose-derived stem cells (ASCs) in fat samples from lipoaspirates harvested with a novel 1470-nm diode, radial emitting LAL platform. Two processing methods, enzymatic and nonenzymatic, were compared. Methods: Laser-assisted liposuction lipoaspirates harvested from 10 subjects were examined for cell viability after processing by enzymatic or nonenzymatic methods. Isolated SVF cells were cultured with an ASC-permissive medium to assess their viability and proliferation capacity by cell proliferation assay. Flow cytometric analysis with ASC-specific markers, gene expression levels, and immunofluorescence for ASC transcription factors were also conducted. Results: Lipoaspirates showed high SVF cell viability of 97% ± 0.02% and 98% ± 0.01%, averaged SVF cell count of 8.7 Â 10 6 ± 3.9 Â 10 6 and 9.4 Â 10 6 ± 4.2 Â 10 6 cells per mL, and averaged ASC count of 1 Â 10 6 ± 2.2 Â 10 5 and 1.2 Â 10 6 ± 5 Â 10 5 cells per mL in nonenzymatic and enzymatic methods, respectively. The ASC-specific markers, gene expression levels, and immunofluorescence for ASC transcription factors confirmed the adipose origin of the cells. Conclusions: The laser lipoaspirates provide a high yield of viable and potent SVF cells and ASCs through both nonenzymatic and enzymatic processes. Improved purity of the harvested lipoaspirate and high ASC content are expected to result in extended graft longevity. Furthermore, eliminating enzymatic digestion may provide advantages, such as reducing process time, cost, and regulatory constraints.

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“…Another major issue with fat grafting is its absence of reproducibility 16 . This could be attributed to variability in fat harvesting and processing methods 3 and patient factors.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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High-Quality Lipoaspirate Following 1470-nm Radial Emitting Laser-Assisted Liposuction

et al. 2022

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Effects of EGF on apoptosis of adipose derived stem cells by regulating miRNA-21

et al. 2016

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1470‐nm Radial fiber‐assisted liposuction for body contouring and facial fat grafting

Heller

Menashe

Plonski

et al. 2022

J of Cosmetic Dermatology

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Background Laser‐assisted liposuction using 1470‐nm radial fiber emits light energy preferentially absorbed by water, yielding a rapid and localized contouring and tightening effect, with minimal scarring. When collected under appropriate conditions, extracted fat samples can be exploited as autologous filling material in liposculpturing procedures. Objectives To assess the 6‐month contouring efficacy of 1470 radial fiber‐assisted liposuction and the volumetric enhancement effect of the harvested tissue in facial fat grafting. Methods Twenty subjects underwent liposuction (BeautiFill, Alma Lasers, Inc.) of lower abdominal or outer thigh fat. In seven subjects, harvested samples were grafted into facial regions. Treatment safety, body weight, blinded evaluator‐assessed aesthetic improvements, and subject‐rated satisfaction were monitored for 6 months. Abdominal and facial fat thickness were assessed by magnetic resonance imaging (n = 5) within 3 months of treatment. Results One‐month posttreatment, most subjects ranked improvements good/excellent (88%) and skin tightening satisfactory/very satisfactory (92%), with >70% of subjects providing similar scores 6‐month posttreatment. Blinded evaluators noted improved/very much improved aesthetic appearance (87%). Harvested tissue injected as a facial filler (21.0 ± 5.2 ml) led to a 0.63 ± 0.12 mm increase in facial fat thickness, observed by MRI, within 3 months. Six months postfilling, the majority of subjects (83%) were satisfied with the outcome. All procedures were well‐tolerated. Conclusions A single 1470 nm radial fiber‐assisted abdominal and thigh liposuction session provided for effective and durable reduction of adipose tissue deposits, with appreciable skin tightening and aesthetic improvements. The gentle harvesting method yielded viable filler material, which was well‐retained in facial regions for up to 6 months.

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Cell-assisted lipotransfer in the clinical treatment of facial soft tissue deformity

Cited by 5 publications

References 52 publications

High-Quality Lipoaspirate Following 1470-nm Radial Emitting Laser-Assisted Liposuction

High-Quality Lipoaspirate Following 1470-nm Radial Emitting Laser-Assisted Liposuction

Effects of EGF on apoptosis of adipose derived stem cells by regulating miRNA-21

1470‐nm Radial fiber‐assisted liposuction for body contouring and facial fat grafting

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