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Adipose stem cells

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https://www.readbyqxmd.com/read/28339498/enhancement-of-osteogenic-differentiation-of-rat-adipose-tissue-derived-mesenchymal-stem-cells-by-zinc-sulphate-under-electromagnetic-field-via-the-pka-erk1-2-and-wnt-%C3%AE-catenin-signaling-pathways
#1
Ezzatollah Fathi, Raheleh Farahzadi
Zinc ion as an essential trace element and electromagnetic fields (EMFs) has been reported to be involved in the regulation of bone metabolism. The aim of this study was to elucidate the effects of zinc sulphate (ZnSO4) on the osteogenic differentiation of adipose tissue-derived mesenchymal stem cells (ADSCs) in the presence of EMF as a strategy in osteoporosis therapy. Alkaline phophatase (ALP) activity measurement, calcium assay and expression of several osteoblastic marker genes were examined to assess the effect of ZnSO4 on the osteogenic differentiation of ADSCs under EMF...
2017: PloS One
https://www.readbyqxmd.com/read/28335232/the-influence-of-modified-silica-nanomaterials-on-adult-stem-cell-culture
#2
Luigi Tarpani, Francesco Morena, Marta Gambucci, Giulia Zampini, Giuseppina Massaro, Chiara Argentati, Carla Emiliani, Sabata Martino, Loredana Latterini
The preparation of tailored nanomaterials able to support cell growth and viability is mandatory for tissue engineering applications. In the present work, silica nanoparticles were prepared by a sol-gel procedure and were then functionalized by condensation of amino groups and by adsorption of silver nanoparticles. Transmission electron microscopy (TEM) imaging was used to establish the morphology and the average dimensions of about 130 nm, which were not affected by the functionalization. The three silica samples were deposited (1 mg/mL) on cover glasses, which were used as a substrate to culture adult human bone marrow-mesenchymal stem cells (hBM-MSCs) and human adipose-derived stem cells (hASCs)...
June 4, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335186/ex-vivo-tissues-engineering-modeling-for-reconstructive-surgery-using-human-adult-adipose-stem-cells-and-polymeric-nanostructured-matrix
#3
Francesco Morena, Chiara Argentati, Eleonora Calzoni, Marino Cordellini, Carla Emiliani, Francesco D'Angelo, Sabata Martino
The major challenge for stem cell translation regenerative medicine is the regeneration of damaged tissues by creating biological substitutes capable of recapitulating the missing function in the recipient host. Therefore, the current paradigm of tissue engineering strategies is the combination of a selected stem cell type, based on their capability to differentiate toward committed cell lineages, and a biomaterial, that, due to own characteristics (e.g., chemical, electric, mechanical property, nano-topography, and nanostructured molecular components), could serve as active scaffold to generate a bio-hybrid tissue/organ...
March 31, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28334693/fabrication-of-human-hair-keratin-jellyfish-collagen-eggshell-derived-hydroxyapatite-osteoinductive-biocomposite-scaffolds-for-bone-tissue-engineering-from-waste-to-regenerative-medicine-products
#4
Yavuz Emre Arslan, Tugba Sezgin Arslan, Burak Derkus, Emel Emregul, Kaan C Emregul
In the present study, we aimed at fabricating an osteoinductive biocomposite scaffold using keratin obtained from human hair, jellyfish collagen and eggshell-derived nano-sized spherical hydroxyapatite (nHA) for bone tissue engineering applications. Keratin, collagen and nHA were characterized with the modified Lowry method, free-sulfhydryl groups and hydroxyproline content analysis, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), attenuated total reflectance-fourier transform infrared spectroscopy (ATR-FTIR) and thermal gravimetric analysis (TGA) which confirmed the success of the extraction and/or isolation processes...
March 18, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28333993/integrated-transcriptomic-and-proteomic-analysis-of-the-molecular-cargo-of-extracellular-vesicles-derived-from-porcine-adipose-tissue-derived-mesenchymal-stem-cells
#5
Alfonso Eirin, Xiang-Yang Zhu, Amrutesh S Puranik, John R Woollard, Hui Tang, Surendra Dasari, Amir Lerman, Andre J van Wijnen, Lilach O Lerman
BACKGROUND: Mesenchymal stromal/stem cell (MSC) transplantation is a promising therapy for tissue regeneration. Extracellular vesicles (EVs) released by MSCs act as their paracrine effectors by delivering proteins and genetic material to recipient cells. To assess how their cargo mediates biological processes that drive their therapeutic effects, we integrated miRNA, mRNA, and protein expression data of EVs from porcine adipose tissue-derived MSCs. METHODS: Simultaneous expression profiles of miRNAs, mRNAs, and proteins were obtained by high-throughput sequencing and LC-MS/MS proteomic analysis in porcine MSCs and their daughter EVs (n = 3 each)...
2017: PloS One
https://www.readbyqxmd.com/read/28333339/platelet-rich-plasma-augments-adipose-derived-stem-cell-growth-and-differentiation
#6
Robert P Gersch, Joshua Glahn, Michael G Tecce, Anthony J Wilson, Ivona Percec
Background: Adipose-derived stem cells (ASCs) are a powerful tool for cosmetic surgery and regenerative medicine. The use of autologous platelet rich plasma (PRP), particularly in combination with ASC-based therapy, has significantly expanded in recent years. Unfortunately, the mechanisms and optimal dosing responsible for the beneficial effects of PRP remain poorly understood. Here we investigate the effect of PRP on ASC growth and differentiation. Objectives: To assess the impact of different PRP feeding and cryopreservation protocols on ASC isolation, expansion, and differentiation...
February 22, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28333322/commentary-on-platelet-rich-plasma-augments-adipose-derived-stem-cell-growth-and-differentiation
#7
Afshin Mosahebi
No abstract text is available yet for this article.
February 22, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28332151/blockade-of-neuroglobin-reduces-protection-of-conditioned-medium-from-human-mesenchymal-stem-cells-in-human-astrocyte-model-t98g-under-a-scratch-assay
#8
Eliana Baez-Jurado, Gina Guio Vega, Gjumrakch Aliev, Vadim V Tarasov, Paula Esquinas, Valentina Echeverria, George E Barreto
Previous studies have indicated that paracrine factors (conditioned medium) increase wound closure and reduce reactive oxygen species in a traumatic brain injury in vitro model. Although the beneficial effects of conditioned medium from human adipose tissue-derived mesenchymal stem cells (hMSCA-CM) have been previously suggested for various neurological diseases, their actions on astrocytic cells are not well understood. In this study, we have explored the effect of hMSCA-CM on human astrocyte model (T98G cells) subjected to scratch assay...
March 22, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28330431/fabrication-and-characterization-of-biphasic-silk-fibroin-scaffolds-for-tendon-ligament-to-bone-tissue-engineering
#9
Sònia Font Tellado, Walter Bonani, Elizabeth Rosado Balmayor, Peter Föhr, Antonella Motta, Claudio Migliaresi, Martijn van Griensven
Tissue engineering is an attractive strategy for tendon/ligament-to-bone interface repair. The structure and extracellular matrix composition of the interface are complex and allow for a gradual mechanical stress transfer between tendons/ligaments and bone. Thus, scaffolds mimicking the structural features of the native interface may be able to better support functional tissue regeneration. In this study, we fabricated biphasic silk fibroin scaffolds designed to mimic the gradient in collagen molecule alignment present at the interface...
March 23, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28327460/comprehensive-proteomic-characterization-of-stem-cell-derived-extracellular-matrices
#10
Héloïse Ragelle, Alexandra Naba, Benjamin L Larson, Fangheng Zhou, Miralem Prijić, Charles A Whittaker, Amanda Del Rosario, Robert Langer, Richard O Hynes, Daniel G Anderson
In the stem-cell niche, the extracellular matrix (ECM) serves as a structural support that additionally provides stem cells with signals that contribute to the regulation of stem-cell function, via reciprocal interactions between cells and components of the ECM. Recently, cell-derived ECMs have emerged as in vitro cell culture substrates to better recapitulate the native stem-cell microenvironment outside the body. Significant changes in cell number, morphology and function have been observed when mesenchymal stem cells (MSC) were cultured on ECM substrates as compared to standard tissue-culture polystyrene (TCPS)...
March 7, 2017: Biomaterials
https://www.readbyqxmd.com/read/28326727/-development-and-characterization-of-oriented-scaffolds-derived-from-cartilage-extracellular-matrix
#11
Li Kun, Zhao Yanhong, Xu Chen, Wang Lianyong, Yang Qiang, Li Hongfa, Teng Binhong
OBJECTIVE: This study aimed to prepare oriented scaffolds derived from a cartilage extracellular matrix (CECM) and to investigate their physicochemical property and compatibility with adipose-derived stem cells (ADSCs). METHODS: A fresh porcine articular cartilage was cut into pieces. Cartilage nanofibers with diameters of 50-500 nm were collected through homogenization and centrifugation. These nanofibers were then decellularized by using Triton X-100 to produce 6% CECM...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28325151/adipose-tissue-derived-pericytes-for-cartilage-tissue-engineering
#12
Jin Xin Zhang, Chun Yan Du, Wei Min Guo, Pan Li, Shu Yun Liu, Zhi Guo Yuan, Jian Hua Yang, Xun Sun, He Yong Yin, Quan Yi Guo, Chen Fu Zhou
Mesenchymal stem cells (MSCs) represent a promising alternative source for cartilage tissue engineering. However, MSC culture is labor-intensive, so these cells cannot be applied immediately to regenerate cartilage for clinical purposes. Risks during the ex vivo expansion of MSCs, such as infection and immunogenicity, can be a bottleneck in their use in clinical tissue engineering. As a novel stem cell source, pericytes are generally considered to be the origin of MSCs. Pericytes do not have to undergo time-consuming ex vivo expansion because they are uncultured cells...
March 21, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28323901/characterization-of-stromal-vascular-fraction-and-adipose-stem-cells-from-subcutaneous-preperitoneal-and-visceral-morbidly-obese-human-adipose-tissue-depots
#13
Karina Ribeiro Silva, Isis Côrtes, Sally Liechocki, João Regis Ivar Carneiro, Antônio Augusto Peixoto Souza, Radovan Borojevic, Clarissa Menezes Maya-Monteiro, Leandra Santos Baptista
BACKGROUND/OBJECTIVES: The pathological condition of obesity is accompanied by a dysfunctional adipose tissue. We postulate that subcutaneous, preperitoneal and visceral obese abdominal white adipose tissue depots could have stromal vascular fractions (SVF) with distinct composition and adipose stem cells (ASC) that would differentially account for the pathogenesis of obesity. METHODS: In order to evaluate the distribution of SVF subpopulations, samples of subcutaneous, preperitoneal and visceral adipose tissues from morbidly obese women (n = 12, BMI: 46...
2017: PloS One
https://www.readbyqxmd.com/read/28323211/metabolic-pathway-of-4-pyridone-3-carboxamide-1%C3%AE-d-ribonucleoside-and-its-effects-on-cellular-energetics
#14
Iwona Pelikant-Malecka, Ewa Kaniewska-Bednarczuk, Sylwia Szrok, Alicja Sielicka, Maciej Śledziński, Czesława Orlewska, Ryszard T Smolenski, Ewa M Słomińska
4-Pirydone-3-carboxamide-1β-D-ribonucleoside (4PYR) is an endogenous nucleoside that could be converted to triphosphates, diphosphates, monophosphates and an analogue of NAD - 4PYRAD. Elevated level of these compounds were observed in chronic renal failure, cancer and active HIV infection. However, little is known about the effect on cell functionality and the metabolic pathways. This study tested effects of 4PYR in different cell types on nucleotide and energy metabolism and clarified enzymes that are involved in conversions of 4PYR...
March 17, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28321424/cell-based-meniscus-repair-and-regeneration-at-the-brink-of-clinical-translation-a-systematic-review-of-preclinical-studies
#15
Jasmijn V Korpershoek, Tommy S de Windt, Michella H Hagmeijer, Lucienne A Vonk, Daniel B F Saris
BACKGROUND: Meniscus damage can be caused by trauma or degeneration and is therefore common among patients of all ages. Repair or regeneration of the menisci could be of great importance not only for pain relief or regaining function but also to prevent degenerative disease and osteoarthritis. Current treatment does not offer consistent long-term improvement. Although preclinical research focusing on augmentation of meniscal tear repair and regeneration after meniscectomy is encouraging, clinical translation remains difficult...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28321259/evaluation-of-three-devices-for-the-isolation-of-the-stromal-vascular-fraction-from-adipose-tissue-and-for-asc-culture-a-comparative-study
#16
Jonathan Rodriguez, Anne-Sophie Pratta, Nacira Abbassi, Hugo Fabre, Fanny Rodriguez, Cyrille Debard, Jacqueline Adobati, Fabien Boucher, Frédéric Mallein-Gerin, Céline Auxenfans, Odile Damour, Ali Mojallal
Adipose-derived stem/stromal cells (ASCs) reside in the stromal vascular fraction (SVF) of adipose tissue (AT) and can be easily isolated. However, extraction of the SVF from lipoaspirate is a critical step in generating ASC, and semiautomated devices have been developed to enhance the efficacy and reproducibility of the outcomes and to decrease manipulation and contamination. In this study, we compared the reference method used in our lab for SVF isolation from lipoaspirate, with three medical devices: GID SVF-1™, Puregraft™, and Stem...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28320483/human-and-feline-adipose-derived-mesenchymal-stem-cells-have-comparable-phenotype-immunomodulatory-functions-and-transcriptome
#17
Kaitlin C Clark, Fernando A Fierro, Emily Mills Ko, Naomi J Walker, Boaz Arzi, Clifford G Tepper, Heather Dahlenburg, Andrew Cicchetto, Amir Kol, Lyndsey Marsh, William J Murphy, Nasim Fazel, Dori L Borjesson
BACKGROUND: Adipose-derived mesenchymal stem cells (ASCs) are a promising cell therapy to treat inflammatory and immune-mediated diseases. Development of appropriate pre-clinical animal models is critical to determine safety and attain early efficacy data for the most promising therapeutic candidates. Naturally occurring diseases in cats already serve as valuable models to inform human clinical trials in oncologic, cardiovascular, and genetic diseases. The objective of this study was to complete a comprehensive side-by-side comparison of human and feline ASCs, with an emphasis on their immunomodulatory capacity and transcriptome...
March 20, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28319827/immunophenotypical-characterization-of-canine-mesenchymal-stem-cells-from-perivisceral-and-subcutaneous-adipose-tissue-by-a-species-specific-panel-of-antibodies
#18
Ana Ivanovska, Stefano Grolli, Paolo Borghetti, Francesca Ravanetti, Virna Conti, Elena De Angelis, Francesca Macchi, Roberto Ramoni, Paolo Martelli, Ferdinando Gazza, Antonio Cacchioli
Immunophenotypical characterization of mesenchymal stem cells is fundamental for the design and execution of sound experimental and clinical studies. The scarce availability of species-specific antibodies for canine antigens has hampered the immunophenotypical characterization of canine mesenchymal stem cells (MSC). The aim of this study was to select a panel of species-specific direct antibodies readily useful for canine mesenchymal stem cells characterization. They were isolated from perivisceral and subcutaneous adipose tissue samples collected during regular surgeries from 8 dogs...
February 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28316259/the-adipose-stromal-vascular-fraction-as-a-complex-cellular-source-for-tissue-engineering-applications
#19
Venkat M Ramakrishnan, Nolan L Boyd
A major challenge in tissue engineering is the generation of sufficient volumes of viable tissue for organ transplant. The development of a stable, mature vasculature is required to sustain the metabolic and functional activities of engineered tissues. Adipose stromal vascular fraction (SVF) cells are an easily accessible, heterogeneous cell system comprised of endothelial cells, macrophages, pericytes, and various stem cell populations. Collectively, SVF has been shown to spontaneously form vessel-like networks in vitro and robust, patent, and functional vasculatures in vivo...
March 19, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28316169/-advances-in-the-research-of-basic-study-and-clinical-application-of-adipose-derived-mesenchymal-stem-cells
#20
S J Cao, L F Wang, T Ba, Z D Rong, G L Hu, B Zhou, Q Li
Since the discovery of adipose-derived mesenchymal stem cell (ADSC) in more than ten years, a great progress has been made from its basic research to clinical application. Compared with bone marrow mesenchymal stem cells, ADSCs are more abundant in reserve, easier to obtain with fewer injuries and less complications. These cells have multiple differentiation potential and can differentiate into adipocytes, chondrocytes and osteoblasts with the influence of different inducing factors. Early studies of ADSCs mainly focused on the ability of multi-directional differentiation, espe-cially on the regeneration of bone defects and cartilage tissue...
March 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
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