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Adipose derived stem cell

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https://www.readbyqxmd.com/read/28922324/biological-properties-and-therapeutic-value-of-cryopreserved-fat-tissue
#1
Takanobu Mashiko, Szu-Hsien Wu, Koji Kanayama, Rintaro Asahi, Takako Shirado, Masanori Mori, Ataru Sunaga, Shunji Sarukawa, Hirokazu Uda, Kotaro Yoshimura
BACKGROUND: Fat grafting frequently requires multiple treatments and thus repeated liposuction to achieve treatment goals. The purpose of this study is to evaluate whether cryopreservation of adipose tissue may facilitate future fat grafting. METHODS: Lipoaspirates were harvested from six adult females and preserved using two cryopreservation methods: 1) simple cooling to -80˚C (cryo-1); or 2) programmed cooling to -190˚C (cryo-2). Fresh fat, cryo-1 fat, and cryo-2 fat were analyzed both in vitro and in vivo...
September 14, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28922323/face-graft-scaffold-production-in-a-rat-model
#2
Jérôme Duisit, Hadrien Amiel, Giuseppe Orlando, Adeline Dedriche, Catherine Behets, Pierre Gianello, Benoît Lengelé
BACKGROUND: As a route towards face bioengineering, our group previously reported the production of a complete scaffold production by perfusion-decellularization of a porcine ear subunit graft and partial recellularization. In order to extend the scaffold to the whole face and to down-scale it, we applied our findings to a rodent hemi-facial graft model. METHODS: After euthanasia, seven full-thickness rat hemi-face grafts were harvested with the CCA and the EJV as pedicle, and cannulated...
September 14, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28922143/leukocyte-reduced-platelet-rich-plasma-stimulates-the-in-vitro-proliferation-of-adipose-tissue-derived-mesenchymal-stem-cells-depending-on-pdgf-signaling
#3
Siegmund Lang, Marietta Herrmann, Christian Pfeifer, Gero Brockhoff, Johannes Zellner, Michael Nerlich, Peter Angele, Lukas Prantl, Sebastian Gehmert, Markus Loibl
BACKGROUND: Platelet-rich Plasma (PRP) is suggested as xenoprotein-free cell-culture medium replacement for animal-derived supplements. OBJECTIVE: The aim of this study was to investigate PRP-triggered signaling in adipose derived mesenchymal stem cells (ASCs). METHODS: PRP was obtained from 4 male patients. We incubated ASCs in α-MEM with different Platelet derived growth factor (PDGF) subtypes or 10% or 20% pooled PRP or 20% fetal calf serum (FCS) prior to determination of the S-phase fraction (SPF)...
September 11, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28921810/bones-morphogenic-protein-4-and-retinoic-acid-combined-treatment-comparative-analysis-for-in-vitro-differentiation-potential-of-murine-mesenchymal-stem-cells-derived-from-bone-marrow-and-adipose-tissue-into-germ-cells
#4
Maryam H Shirzeily, Neda Khanlarkhani, Fardin Amidi, Farshad H Shirzeily, Fereydoon S Aval, Aligholi Sobhani
Nowadays, infertility is no longer considered as an unsolvable disorder due to progresses in germ cells derived from stem lineage with diverse origins. Technical and ethical challenges push researchers to investigate various tissue sources to approach more efficient gametes. The purpose of the current study is to investigate the efficacy of a combined medium, retinoic acid (RA) together with Bone Morphogenic Protein-4 (BMP4), on differentiation of Bone Marrow Mesenchymal Stem Cells (BMMSCs) and adipose-derived mesenchymal stem cells (ADMSCs) into germ cells...
September 18, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28919746/in-vitro-and-in-vivo-studies-of-a-novel-bacterial-cellulose-based-acellular-bilayer-nanocomposite-scaffold-for-the-repair-of-osteochondral-defects
#5
Jyoti V Kumbhar, Sachin H Jadhav, Dhananjay S Bodas, Amruta Barhanpurkar-Naik, Mohan R Wani, Kishore M Paknikar, Jyutika M Rajwade
Bacterial cellulose (BC) is a naturally occurring nanofibrous biomaterial which exhibits unique physical properties and is amenable to chemical modifications. To explore whether this versatile material can be used in the treatment of osteochondral defects (OCD), we developed and characterized novel BC-based nanocomposite scaffolds, for example, BC-hydroxyapatite (BC-HA) and BC-glycosaminoglycans (BC-GAG) that mimic bone and cartilage, respectively. In vitro biocompatibility of BC-HA and BC-GAG scaffolds was established using osteosarcoma cells, human articular chondrocytes, and human adipose-derived mesenchymal stem cells...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28919507/tissue-engineered-magnetic-cell-sheet-patches-for-advanced-strategies-in-tendon-regeneration
#6
Ana I Gonçalves, Márcia T Rodrigues, Manuela E Gomes
Tendons are powerful 3D biomechanically structures combining a few cells in an intrincated and highly hierarchical niche environment. When tendon homeostasis is compromised, restoration of functionality upon injury is limited and requires alternatives to current augmentation or replacement strategies. Cell sheet technologies are a powerful tool for the fabrication of living extracellular-rich patches towards regeneration of tenotopic defects. Thus, we originally propose the development of magnetically responsive tenogenic patches through magnetic cell sheet (magCSs) technology that enable the remote control upon implantation of the tendon-mimicking constructs...
September 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28916299/non-canonical-wnt-mediated-neurogenic-differentiation-of-human-bone-marrow-derived-mesenchymal-stem-cells
#7
Sujeong Jang, Hyong-Ho Cho, Jong-Seong Park, Han-Seong Jeong
Bone marrow-derived mesenchymal stem cells (BM-MSCs), which are characterized by multipotency and self-renewal, are responsible for tissue regeneration and repair. We have previously reported in adipose tissue-derived MSCs that only Wnt5a is enhanced at neurogenic differentiation, and the mechanism of differentiation is dependent on the Wnt5a/JNK pathway; however, the role of Wnt/MAPK pathway is yet to be investigated in neurogenic differentiation in BM-MSCs. We compared the transcriptional expression of Wnt in neurogenic induced-hBM-MSCs (NI-hBM-MSCs) with that in primary hBM-MSCs, using RT-PCR, qPCR, and western blotting...
September 12, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28916182/erratum-to-overcoming-the-bottleneck-of-platelet-lysate-supply-in-large-scale-clinical-expansion-of-adipose-derived-stem-cells-a-comparison-of-fresh-versus-three-types-of-platelet-lysates-from-outdated-buffy-coat-derived-platelet-concentrates-cytotherapy-2017
#8
Peter V Glovinski, Mikkel Herly, Anders B Mathiasen, Jesper D Svalgaard, Rehannah Borup, Maj-Lis M Talman, Jens J Elberg, Stig-Frederikt Kølle, Krzysztof T Drzewiecki, Anne Fischer-Nielsen
No abstract text is available yet for this article.
October 2017: Cytotherapy
https://www.readbyqxmd.com/read/28914634/cellular-therapy-with-human-autologous-adipose-derived-adult-stem-cells-for-advanced-keratoconus
#9
Pragnya R Donthineni, Bhupesh Bagga, Vivek Singh, Sachin Shukla
No abstract text is available yet for this article.
September 12, 2017: Cornea
https://www.readbyqxmd.com/read/28912813/silicone-substrate-with-collagen-and-carbon-nanotubes-exposed-to-pulsed-current-for-msc-osteodifferentiation
#10
Daniyal Jamal, Roche C de Guzman
Autologous human adipose tissue-derived mesenchymal stem cells (MSCs) have the potential for clinical translation through their induction into osteoblasts for regeneration. Bone healing can be driven by biophysical stimulation using electricity for activating quiescent adult stem cells. It is hypothesized that application of electric current will enhance their osteogenic differentiation, and addition of conductive carbon nanotubes (CNTs) to the cell substrate will provide increased efficiency in current transmission...
2017: International Journal of Biomaterials
https://www.readbyqxmd.com/read/28906099/one-dimension-hydroxyapatite-nanostructures-with-tunable-length-for-efficient-stem-cell-differentiation-regulation
#11
Baojin Ma, Shan Zhang, Feng Liu, Jiazhi Duan, Shicai Wang, Jing Han, Yuanhua Sang, Xiaoqiang Yu, Dong Li, Wei Tang, Shaohua Ge, Hong Liu
It is well-accepted that most osteogenic differentiation processes do need growth factors assistance to improve efficiency. As a material cue, hydroxyapatite (HAp) can promote osteogenic differentiation of stem cells only in a way. Up to now, rare work related to the relationship between HAp nanostructures and stem cells in osteogenic differentiation process without the assistance of growth factors has been reported. In this study, one dimension (1D) HAp nanostructures with tunable length were synthesized by an oleic acid assisted solvothermal method by adjusting the alcohol/water ratio (η)...
September 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28905449/lull-pgm-system-a-suitable-technique-to-improve-the-regenerative-potential-of-autologous-fat-grafting
#12
Paolo G Morselli, Federico A Giorgini, Claudia Pazzini, Claudio Muscari
Autologous fat grafting and methods of purification of harvested tissue have become one of the most current themes in regenerative medicine. The aim of this study was to evaluate the in vitro regenerative potential of abdomen lipoaspirates subjected to a combined washing-decantation purifying procedure, the Lull pgm System (Lull). Blood cells and stromal-vascular fraction (SVF) cells contained in the aspirates were investigated and compared with those obtained through more conventional fat-processing methods, i...
September 14, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28904532/the-use-of-adipose-derived-stem-cells-in-selected-skin-diseases-vitiligo-alopecia-and-nonhealing-wounds
#13
REVIEW
Agnieszka Owczarczyk-Saczonek, Anna Wociór, Waldemar Placek, Wojciech Maksymowicz, Joanna Wojtkiewicz
The promising results derived from the use of adipose-derived stem cells (ADSCs) in many diseases are a subject of observation in preclinical studies. ADSCs seem to be the ideal cell population for the use in regenerative medicine due to their easy isolation, nonimmunogenic properties, multipotential nature, possibilities for differentiation into various cell lines, and potential for angiogenesis. This article reviews the current data on the use of ADSCs in the treatment of vitiligo, various types of hair loss, and the healing of chronic wounds...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28902341/bilateral-retinal-detachments-after-intravitreal-injection-of-adipose-derived-stem-cells-in-a-patient-with-exudative-macular-degeneration
#14
Steven S Saraf, Matthew A Cunningham, Ajay E Kuriyan, Sarah P Read, Philip J Rosenfeld, Harry W Flynn, Thomas A Albini
A 77-year-old woman with exudative macular degeneration underwent bilateral intravitreal injections of "stem cells" at a clinic in Georgia. One month and 3 months after injection, she developed retinal detachments in the left and right eyes, respectively. Increased awareness within the medical community of such poor outcomes is critical so that clinics offering untested practices that have been shown to be potentially harmful to patients can be identified and brought under U.S. Food and Drug Administration oversight...
September 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28901689/prevascularization-of-3d-printed-bone-scaffolds-by-bioactive-hydrogels-and-cell-co-culture
#15
Mitchell A Kuss, Shaohua Wu, Ying Wang, Jason B Untrauer, Wenlong Li, Jung Yul Lim, Bin Duan
Vascularization is a fundamental prerequisite for large bone construct development and remains one of the main challenges of bone tissue engineering. Our current study presents the combination of 3D printing technique with a hydrogel-based prevascularization strategy to generate prevascularized bone constructs. Human adipose derived mesenchymal stem cells (ADMSC) and human umbilical vein endothelial cells (HUVEC) were encapsulated within our bioactive hydrogels, and the effects of culture conditions on in vitro vascularization were determined...
September 13, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28901186/recipient-adipose-derived-stem-cells-enhance-recipient-cell-engraftment-and-prolong-allotransplant-survival-in-a-miniature-swine-hind-limb-model
#16
Yur-Ren Kuo, Chien-Chang Chen, Yen-Chou Chen, Ching-Ming Chien
Donor mesenchymal stem cells (MSCs) could prolong vascularized composite allotransplantation (VCA) survival in our previous studies. However, recipient adipose tissue is easier to harvest than donor tissue for preconditioning modulation. Hence, this study investigated the efficacy of recipient autologous adipose-derived stem cells (rADSCs) for VCA survival. The heterotopic hind-limb transplantation from female donor to male recipient was performed in outbred miniature swine. Group I ( n = 6) was untreated controls...
August 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28900631/single-cell-phosphospecific-flow-cytometric-analysis-of-canine-and-murine-adipose-derived-stem-cells
#17
Harumichi Itoh, Shimpei Nishikawa, Tomoya Haraguchi, Yu Arikawa, Masato Hiyama, Toshie Iseri, Yoshiki Itoh, Munekazu Nakaichi, Yasuho Taura, Kenji Tani, Kazuhito Itamoto
This study aimed to demonstrate single-cell phosphospecific flow cytometric analysis of canine and murine adipose-derived stem/stromal cells (ADSCs). ADSCs were obtained from clinically healthy laboratory beagles and C57BL/6 mice. Cell differentiation into adipocytes, osteocytes, and chondrocytes was observed for the cultured canine ADSCs (cADSCs) and murine ADSCs (mADSCs) to determine their multipotency. We also performed single-cell phosphospecific flow cytometric analysis related to cell differentiation and stemness...
2017: Journal of veterinary medicine
https://www.readbyqxmd.com/read/28899664/implant-for-autologous-soft-tissue-reconstruction-using-an-adipose-derived-stem-cell-colonized-alginate-scaffold
#18
Tobias Hirsch, Christine Laemmle, Bjoern Behr, Marcus Lehnhardt, Frank Jacobsen, Dirk Hoefer, Maximilian Kueckelhaus
BACKGROUND: Adipose-derived stem cells represent an interesting option for soft tissue replacement as they are easy to procure and can generate their own blood supply through the production of angiogenic factors. We seeded adipose-derived stem cells on a bioresorbable, biocompatible polymer alginate scaffold to generate autologous soft tissue constructs for repair. MATERIALS AND METHODS: We built and optimized an alginate scaffold and tested its biocompatibility using the MTT assay and its hydration capacity...
August 16, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28895862/immunomodulatory-effects-of-soluble-factors-secreted-by-feline-adipose-tissue-derived-mesenchymal-stem-cells
#19
Hyung-Kyu Chae, Woo-Jin Song, Jin-Ok Ahn, Qiang Li, Bo-Yeon Lee, Kyeong Kweon, Sang-Chul Park, Hwa-Young Youn
Mesenchymal stem cells (MSCs) have immunomodulatory functions and differentiation capacity, and their clinical use is increasing in veterinary species. Although MSCs have been applied in the treatment in various inflammatory diseases, mechanistic research on feline MSCs is lacking. Accordingly, in this study, we aimed to investigate the immunomodulatory mechanisms of MSCs isolated from feline adipose tissue (fATMSCs). fATMSCs from healthy cats were cultured in an appropriate manner and cocultured with transwell-separated allogeneic feline peripheral blood mononuclear cells (fPBMCs) and RAW264...
September 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28894451/inflammatory-conditions-dictate-the-effect-of-mesenchymal-stem-or-stromal-cells-on-b-cell-function
#20
Franka Luk, Laura Carreras-Planella, Sander S Korevaar, Samantha F H de Witte, Francesc E Borràs, Michiel G H Betjes, Carla C Baan, Martin J Hoogduijn, Marcella Franquesa
The immunomodulatory capacity of mesenchymal stem or stromal cells (MSC) makes them a promising tool for treatment of immune disease and organ transplantation. The effects of MSC on B cells are characterized by an abrogation of plasmablast formation and induction of regulatory B cells (Bregs). It is, however, unknown how MSC interact with B cells under inflammatory conditions. In this study, adipose tissue-derived MSC were pretreated with 50 ng/ml IFN-γ for 96 h (MSC-IFN-γ) to simulate inflammatory conditions...
2017: Frontiers in Immunology
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