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Stromal vascular fraction

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https://www.readbyqxmd.com/read/28086781/effects-of-the-intradiscal-implantation-of-stromal-vascular-fraction-plus-platelet-rich-plasma-in-patients-with-degenerative-disc-disease
#1
Comella Kristin, Silbert Robert, Parlo Michelle
BACKGROUND: Stromal vascular fraction (SVF) can easily be obtained from a mini-lipoaspirate procedure of fat tissue and platelet rich plasma (PRP) can be obtained from peripheral blood. The SVF contains a mixture of cells including ADSCs and growth factors and has been depleted of the adipocyte (fat cell) population. We evaluated the safety and efficacy of administering SVF and PRP intra-discally into patients with degenerative disc disease. METHODS: A total of 15 patients underwent a local tumescent liposuction procedure to remove approximately 60 ml of fat tissue...
January 13, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28053001/cancer-cachexia-differentially-regulates-visceral-adipose-tissue-turnover
#2
Felipe de Oliveira Franco, Magno Alves Lopes, Felipe Dos Santos Henriques, Rodrigo X Neves, Cesário Bianchi Filho, Miguel Luiz Batista Júnior
Cancer cachexia (CC) is a progressive metabolic syndrome that is marked by severe body weight loss. Metabolic disarrangement of fat tissues is a very early event in CC, followed by adipose tissue (AT) atrophy and remodelling. However, there is little information regarding the possible involvement of cellular turnover in this process. Thus, we evaluated the effect of CC on AT turnover of mesenteric (ME) and retroperitoneal (RP) AT depots as possible factors that contribute to AT atrophy. CC was induced by a subcutaneous injection of Walker tumour cells (2x10(7)) in Wistar rats...
January 4, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28052909/naturally-adipose-stromal-cell-enriched-fat-graft-comparative-polychromatic-flow-cytometry-study-of-fat-harvested-by-barbed-or-blunt-multihole-cannula
#3
Alessio Caggiati, Antonia Germani, Anna Di Carlo, Giovanna Borsellino, Maurizio C Capogrossi, Mario Picozza
BACKGROUND: Fat grafts enriched with cells of the stromal vascular fraction (SVF), especially adipose-derived stromal cells (ASCs), exhibit significantly improved retention over non enriched, plain fat. Different types of liposuction cannulae may yield lipoaspirates with different subpopulations of cells. Moreover, preparation of adipose tissue for transplantation typically involves centrifugation, which creates a density gradient of fat. OBJECTIVES: The authors sought to determine whether liposuction with a barbed or smooth cannula altered the enrichment of the SVF, and specifically ASCs, in low-density (LD) and high-density (HD) fractions of centrifuged adipose tissue...
January 3, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28040462/comparison-between-pediatric-and-adult-adipose-mesenchymal-stromal-cells
#4
Olivier Abbo, Marion Taurand, Paul Monsarrat, Isabelle Raymond, Emmanuelle Arnaud, Sandra De Barros, Françoise Auriol, Philippe Galinier, Louis Casteilla, Valerie Planat-Benard
BACKGROUND: Adipose-derived mesenchymalstromal cells (ASC) are currently tested in regenerative medicine to promote tissue reconstruction after injury. Regardingautologous purpose, the possible loss of therapeutic function and cell properties during aging have been questioned in adults. To date no reliable information is available concerning ASC from pediatric patients and a better knowledge is required for clinical applications. METHODS: Subcutaneous adipose tissue was collected from 27 donors (0-1 years old) and 50 donors (1-12 years old) and compared with adult ASC for in vitro characteristics...
December 28, 2016: Cytotherapy
https://www.readbyqxmd.com/read/28018432/adipose-derived-mesenchymal-stem-cells-viability-and-differentiating-features-for-orthopaedic-reparative-applications-banking-of-adipose-tissue
#5
Ilaria Roato, Daniela Alotto, Dimas Carolina Belisario, Stefania Casarin, Mara Fumagalli, Irene Cambieri, Raimondo Piana, Maurizio Stella, Riccardo Ferracini, Carlotta Castagnoli
Osteoarthritis is characterized by loss of articular cartilage also due to reduced chondrogenic activity of mesenchymal stem cells (MSCs) from patients. Adipose tissue is an attractive source of MSCs (ATD-MSCs), representing an effective tool for reparative medicine, particularly for treatment of osteoarthritis, due to their chondrogenic and osteogenic differentiation capability. The treatment of symptomatic knee arthritis with ATD-MSCs proved effective with a single infusion, but multiple infusions could be also more efficacious...
2016: Stem Cells International
https://www.readbyqxmd.com/read/28017585/evaluation-of-the-stromal-vascular-fraction-of-adipose-tissue%C3%A2-as-the-basis-for-a-stem-cell-based-tissue-engineered-vascular-graft
#6
Jeffrey T Krawiec, Han-Tsung Liao, LaiYee Lily Kwan, Antonio D'Amore, Justin S Weinbaum, J Peter Rubin, William R Wagner, David A Vorp
OBJECTIVE: One of the rate-limiting barriers within the field of vascular tissue engineering is the lengthy fabrication time associated with expanding appropriate cell types in culture. One particularly attractive cell type for this purpose is the adipose-derived mesenchymal stem cell (AD-MSC), which is abundant and easily harvested from liposuction procedures. Even this cell type has its drawbacks, however, including the required culture period for expansion, which could pose risks of cellular transformation or contamination...
December 22, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28002902/bone-marrow-concentrated-cells-and-stromal-vascular-fraction-cells-injections-for-osteoarthritis-treatment-a-systematic-review
#7
G Vadalà, R Papalia, L La Verde, F Russo, V Denaro, M A Rosa
The aim of this systematic review is to examine current clinical evidences supporting the intraarticular injection of bone marrow concentrate cells (BMC) and adipose-derived stromal vascular fraction cells (SVF) for the treatment of osteoarthritis (OA). The research was performed on PubMed (Medline), EMBASE and Cochrane Library considering the English literature. Only clinical trials have been included. The systematic research identified twelve clinical trials. Articles included in the study, were one of level II, four of level III, six of level IV and one level V...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28002250/adipose-extracellular-matrix-stromal-vascular-fraction-gel-a-novel-adipose-tissue-derived-injectable-for-stem-cell-therapy
#8
Yao Yao, Ziqing Dong, Yunjun Liao, Pan Zhang, Jingjing Ma, Jianhua Gao, Feng Lu
BACKGROUND: Adipose-derived stem cells (ASCs) and other stromal vascular fraction (SVF) cells were used more often for stem cell therapy, even though limitations such as poor cell retention rate, complicated and expensive isolation processes, and the use of specific laboratory equipment need to be overcome. METHODS: Here, we developed a novel but simple method for generating an injectable mixture of SVF cells and native adipose extracellular matrix (ECM). It is a purely mechanical process in which lipoaspirate is processed into an "ECM/SVF-gel"...
December 19, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28002249/phenotypic-analysis-of-stromal-vascular-fraction-after-mechanical-shear-reveals-stress-induced-progenitor-populations
#9
Benoit Chaput, Jerome Laloze, Jean-Louis Grolleau, Nicolas Espagnolle, Nicolas Bertheuil, Audrey Varin
No abstract text is available yet for this article.
December 19, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28002241/response-letter-to-the-editor-phenotypic-analysis-of-stromal-vascular-fraction-after-mechanical-shear-reveals-stress-induced-progenitor-populations
#10
Derek A Banyard, Alan D Widgerow
No abstract text is available yet for this article.
December 19, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27999947/comparison-of-in-vivo-immune-responses-following-transplantation-of-vascularized-and-non-vascularized-human-dermo-epidermal-skin-substitutes
#11
Agnes S Klar, Thomas Biedermann, Claudia Simmen-Meuli, Ernst Reichmann, Martin Meuli
PURPOSE: Autologous bio-engineered dermo-epidermal skin substitutes (DESS) represent an alternative therapeutic option for a definitive treatment of skin defects in human patients. Largely, the interaction of host immune cells with transplanted DESS is considered to be essential for the granulation tissue formation, graft take, and its functionality. The aim of this study was to compare the spatiotemporal distribution and density of host-derived monocytes/macrophages and granulocytes in vascularized (vascDESS) versus non-vascularized DESS (non-vascDESS) in a rat model...
December 20, 2016: Pediatric Surgery International
https://www.readbyqxmd.com/read/27995483/assessing-tumor-vascularization-as-a-potential-biomarker-of-imatinib-resistance-in-gastrointestinal-stromal-tumors-by-dynamic-contrast-enhanced-magnetic-resonance-imaging
#12
Lorena Consolino, Dario Livio Longo, Marianna Sciortino, Walter Dastrù, Sara Cabodi, Giovanni Battista Giovenzana, Silvio Aime
BACKGROUND: Most metastatic gastrointestinal stromal tumors (GISTs) develop resistance to the first-line imatinib treatment. Recently, increased vessel density and angiogenic markers were reported in GISTs with a poor prognosis, suggesting that angiogenesis is implicated in GIST tumor progression and resistance. The purpose of this study was to investigate the relationship between tumor vasculature and imatinib resistance in different GIST mouse models using a noninvasive magnetic resonance imaging (MRI) functional approach...
December 19, 2016: Gastric Cancer
https://www.readbyqxmd.com/read/27995034/adipose-derived-human-stem-stromal-cells-comparative-organ-specific-mitochondrial-bioenergy-profiles
#13
Alice S Ferng, Katherine M Marsh, Jamie M Fleming, Renee F Conway, David Schipper, Naing Bajaj, Alana M Connell, Tia Pilikian, Kitsie Johnson, Ray Runyan, Stephen M Black, John A Szivek, Zain Khalpey
BACKGROUND: Adipose-derived stem/stromal cells (ASCs) isolated from the stromal vascular fraction are a source of mesenchymal stem cells that have been shown to be beneficial in many regenerative medicine applications. ASCs are an attractive source of stem cells in particular, due to their lack of immunogenicity. This study examines differences between mitochondrial bioenergetic profiles of ASCs isolated from adipose tissue of five peri-organ regions: pericardial, thymic, knee, shoulder, and abdomen...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27984756/non-reconstructable-peripheral-vascular-disease-of-the-lower-extremity-in-ten-patients-treated-with-adipose-derived-stromal-vascular-fraction-cells
#14
Michael H Carstens, Arturo Gómez, Ronald Cortés, Elizabeth Turner, Cecilia Pérez, Marlon Ocon, Diego Correa
We present a series of ten patients with non-reconstructable peripheral vascular disease (PVD), secondary to arteriosclerosis (AS) and/or diabetes mellitus (DM), treated with local injection of non-expanded autologous, adipose-derived stromal vascular fraction (SVF) cells for the purposes of enhancing neovascularization and chronic wound healing. Adipose tissue was surgically harvested and processed to yield the heterogeneous SVF cells for immediate point-of-care injection. The gastrocnemius muscles and ulcers or wounds where present were locally injected with the resulting SVF...
January 2017: Stem Cell Research
https://www.readbyqxmd.com/read/27943660/clinical-scale-expansion-of-adipose-derived-stromal-cells-starting-from-stromal-vascular-fraction-in-a-single-use-bioreactor-proof-of-concept-for-autologous-applications
#15
Mélanie Gadelorge, Marion Bourdens, Nicolas Espagnolle, Clémence Bardiaux, Julie Murrell, Lenaig Savary, Sylvain Ribaud, Benoît Chaput, Luc Sensebe
Adipose derived stromal cells (ASC) are adult multipotent cells increasingly used for cell therapy due to their differentiation potential, their paracrine effect and their convenience. ASC are currently selected from stromal vascular fraction (SVF) of adipose tissue and expanded in 2D flasks following Good Manufacturing Practices. This process is limited in surface area, labor-intensive and expensive, especially for autologous applications requiring selection and expansion steps for every patient. Closed and automated bioreactors offer an alternative for scalable and cost-effective production of ASCs...
December 11, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27941495/evaluation-of-2-purification-methods-for-isolation-of-human-adipose-derived-stem-cells-based-on-red-blood-cell-lysis-with-ammonium-chloride-and-hypotonic-sodium-chloride-solution
#16
Sheng-Hong Li, Xuan Liao, Tian-En Zhou, Li-Ling Xiao, Yuan-Wen Chen, Fan Wu, Jing-Ru Wang, Biao Cheng, Jian-Xing Song, Hong-Wei Liu
BACKGROUND: The present study was conducted to compare 2 purification methods for isolation of human adipose-derived stromal vascular fraction or stem cells (ADSCs) based on red blood cell (RBC) lysis with 155 mM ammonium chloride (NH4Cl) and hypotonic sodium chloride (NaCl) solution, and try to develop a safe, convenient, and cost-effective purification method for clinical applications. METHODS: Adipose-derived stem cells and RBC were harvested from the fatty and fluid portions of liposuction aspirates, respectively...
January 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/27913088/effect-of-suction-pressures-on-cell-yield-and-functionality-of-the-adipose-derived-stromal-vascular-fraction
#17
Yuan-Wen Chen, Jing-Ru Wang, Xuan Liao, Sheng-Hong Li, Li-Ling Xiao, Biao Cheng, Guang-Hui Xie, Jian-Xing Song, Hong-Wei Liu
OBJECTIVE: The present study was performed to explore the effect of suction pressures on the cell yield of adipose-derived stromal vascular fraction (SVF) and the functionality of adipose-derived stem cells (ADSCs), situated in the SVF, and to develop optimal parameters of harvesting SVF for clinical use. METHODS: Adipose tissue was harvested from the lower abdomen of 10 patients by suction-assisted lipoplasty. Suction pressure was either -30 ± 5 kPa or -55 ± 5 kPa...
November 11, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27902740/extensive-characterization-and-comparison-of-endothelial-cells-derived-from-dermis-and-adipose-tissue-potential-use-in-tissue-engineering
#18
Hanneke N Monsuur, Ester M Weijers, Frank B Niessen, Amit Gefen, Pieter Koolwijk, Susan Gibbs, Lenie J van den Broek
Tissue-engineered constructs need to become quickly vascularized in order to ensure graft take. One way of achieving this is to incorporate endothelial cells (EC) into the construct. The adipose tissue stromal vascular fraction (adipose-SVF) might provide an alternative source for endothelial cells as adipose tissue can easily be obtained by liposuction. Since adipose-EC are now gaining more interest in tissue engineering, we aimed to extensively characterize endothelial cells from adipose tissue (adipose-EC) and compare them with endothelial cells from dermis (dermal-EC)...
2016: PloS One
https://www.readbyqxmd.com/read/27886006/semi-automated-extraction-and-characterization-of-stromal-vascular-fraction-using-a-new-medical-device
#19
Alexander Hanke, Lukas Prantl, Carina Wenzel, Michael Nerlich, Gero Brockhoff, Markus Loibl, Sebastian Gehmert
INTRODUCTION: The stem cell rich Stromal Vascular Fraction (SVF) can be harvested by processing lipo-aspirate or fat tissue with an enzymatic digestion followed by centrifugation. To date neither a standardised extraction method for SVF nor a generally admitted protocol for cell application in patients exists. A novel commercially available semi-automated device for the extraction of SVF promises sterility, consistent results and usability in the clinical routine. The aim of this work was to compare the quantity and quality of the SVF between the new system and an established manual laboratory method...
November 23, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27882150/effect-of-stromal-cell-derived-factor-1-on-myocardial-apoptosis-and-cardiac-function-recovery-in-rats-with-acute-myocardial-infarction
#20
Yuanyuan Liu, Songtao Gao, Zheng Wang, Yan Yang, Hong Huo, Xuefeng Tian
The aim of the study was to investigate the effect of stromal cell-derived factor-1 (SDF-1) on myocardial apoptosis and cardiac function recovery in rats with acute myocardial infarction (AMI) and the mechanism of the Toll-like receptor (TLR)-4/nuclear factor-κB (NF-κB) signaling pathway. A total of 64 healthy male F344 rats were randomly divided into the sham operation, model, SDF-1 intervention and SDF-1 antibody groups, with 16 rats in each group. The method of Olivette was used to establish the AMI model by ligation of the left anterior descending artery...
November 2016: Experimental and Therapeutic Medicine
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