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Fat derived stem cell

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https://www.readbyqxmd.com/read/27921032/the-collection-of-adipose-derived-stem-cells-using-water-jet-assisted-lipoplasty-for-their-use-in-plastic-and-reconstructive-surgery-a-preliminary-study
#1
Valeria Purpura, Elena Bondioli, Davide Melandri, Pier C Parodi, Luca Valenti, Michele Riccio
The graft of autologous fat for the augmentation of soft tissue is a common practice frequently used in the field of plastic and reconstructive surgery. In addition, the presence of adipose derived stem cells (ASCs) in adipose tissue stimulates the regeneration of tissue in which it is applied after the autologous fat grafting improving the final clinical results. Due to these characteristics, there is an increasing interest in the use of ASCs for the treatment of several clinical conditions. As a consequence, the use of clean room environment is required for the production of cell-based therapies...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27920882/paroxetine-can-enhance-neurogenesis-during-neurogenic-differentiation-of-human-adipose-derived-stem-cells
#2
Maliheh Jahromi, Shahnaz Razavi, Nushin Amirpour, Zahra Khosravizadeh
BACKGROUND: Some antidepressant drugs can promote neuronal cell proliferation in vitro as well as hippocampal neurogenesis in human and animal models. Furthermore, adipose tissue is an available source of adult stem cells with the ability to differentiate in to multiple lineages. Therefore, human Adipose-Derived Stem Cells (hAD-SCs) may be a suitable source for regenerative medical applications. Since there is no evidence for the effect of Paroxetine as the most commonly prescribed antidepressant drug for neurogenic potential of hADSCs, an attempt was made to determine the effect of Paroxetine on proliferation and neural differentiation of hADSCs...
October 2016: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/27906881/stem-cells-and-clinical-practice-new-advances-and-challenges-at-the-time-of-emerging-problems-with-induced-pluripotent-stem-cell-therapies
#3
Mariusz Z Ratajczak, Kamila Bujko, Wojciech Wojakowski
Humans, like other species that reproduce sexually, originate from a fertilized oocyte (zygote), which is a totipotent stem cell giving rise to an adult organism. During the process of embryogenesis, stem cells at different levels of the developmental hierarchy establish all 3 germ layers and give rise to tissue‑committed stem cells, which are responsible for rejuvenation of a given tissue or organ. The robustness of the stem cell compartment is one of the major factors that directly impact life quality as well as lifespan...
November 10, 2016: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/27906056/umbilical-cord-blood-derived-non-hematopoietic-stem-cells-retrieved-and-expanded-on-bone-marrow-derived-extracellular-matrix-display-pluripotent-characteristics
#4
Junjie Wu, Yun Sun, Travis J Block, Milos Marinkovic, Zhi-Liang Zhang, Richard Chen, Yixia Yin, Juquan Song, David D Dean, Zhongding Lu, Xiao-Dong Chen
BACKGROUND: Umbilical cord blood (UCB) not only contains hematopoietic stem cells (HSCs), but also non-hematopoietic stem cells (NHSCs) that are able to differentiate into a number of distinct cell types. Based on studies published to date, the frequency of NHSCs in UCB is believed to be very low. However, the isolation of these cells is primarily based on their adhesion to tissue culture plastic surfaces. METHODS AND RESULTS: In the current study, we demonstrate that this approach overlooks some of the extremely immature NHSCs because they lack the ability to adhere to plastic...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27895151/high-fat-diet-promotes-mammary-gland-myofibroblast-differentiation-through-mir-140-downregulation
#5
Benjamin Wolfson, Yongshu Zhang, Ramkishore Gernapudi, Nadire Duru, Yuan Yao, Pang-Kuo Lo, Qun Zhou
Human breast adipose tissue is a heterogonous cell population consisting of mature white adipocytes, multipotent mesenchymal stem cells, committed progenitor cells, fibroblasts, endothelial cells, and immune cells. Dependent on external stimulation, adipose derived stem cells differentiate along diverse lineages into adipocytes, chondrocytes, osteoblasts, fibroblasts, and myofibroblasts. It is currently not fully understood how high-fat diet reprograms adipose-derived stem cells into myofibroblasts. In our study, we use regular-diet and high-fat diet induced obesity mouse models to investigate the role of dietary fat on myofibroblast differentiation in the mammary stromal microenvironment...
November 28, 2016: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/27893630/a-comprehensive-in-vitro-comparison-of-preparation-techniques-for-fat-grafting
#6
Libor Streit, Josef Jaros, Veronika Sedlakova, Miroslava Sedlackova, Lubos Drazan, Michal Svoboda, Jakub Pospisil, Tomas Vyska, Jiri Vesely, Ales Hampl
BACKGROUND: Lipomodelling is a technique that uses patient's own fat for tissue regeneration and augmentation. The extent of regenerative effect is reported to be determined by the numbers of adipose tissue-derived stem cells (ASCs) and the viability of cells in processed adipose tissue, which, together with other factors, influence the degree of graft retention. This study addresses whether differences exist in properties of fat graft obtained by three commonly used techniques. METHODS: Adipose tissue harvested from the hypo-gastric regions of 14 patients was processed by decantation, centrifugation, and membrane-based tissue filtration...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27893580/the-effects-of-adipose-derived-stem-cell-differentiated-adipocytes-on-skin-burn-wound-healing-in-rats
#7
Yu-Wen Chen, Tabita Timeea Scutaru, Nicolae Ghetu, Eugen Carasevici, Cristian Dumitru Lupascu, Dan Ferariu, Dragos Pieptu, Corneliu-George Coman, Mihai Danciu
Both adipose-derived stem cells (ADSCs) and fat grafting promote burn wound healing, but whether adipogen-derived cells using various inducers such as 3-isobutyl-1-methylxanthine (IBMX) and insulin affect wound healing is unknown. Herein, ADSC-differentiated adipogenic lineages were used in rat burn wounds to evaluate wound healing potential. ADSCs were cultivated using six different adipogenic differentiation conditions (IBMX ± insulin, IBMX for 5 days, high and low Dulbecco's modified Eagle's medium) and in vitro morphological changes and cell proliferations during adipogenic differentiation were recorded...
November 11, 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/27887867/evaluation-of-function-and-recovery-of-adipose-derived-stem-cells-after-exposure-to-paclitaxel
#8
William M Harris, Ping Zhang, Michael Plastini, Telisha Ortiz, Nikolas Kappy, Jefferson Benites, Edward Alexeev, Shaohua Chang, Ross Brockunier, Jeffrey P Carpenter, Spencer A Brown
BACKGROUND AIMS: Adipose-derived stem cells (ASCs) are considered to play a positive role in wound healing as evidenced by their increasing use in breast reconstructive procedures. After chemotherapy for breast cancer, poor soft tissue wound healing is a major problem. In the present study, the functional capabilities and recovery of ASCs after exposure to chemotherapeutic agent paclitaxel (PTX) using in vitro and ex vivo models were demonstrated. METHODS: Human ASCs were isolated from periumbilical fat tissue and treated with PTX at various concentrations...
November 22, 2016: Cytotherapy
https://www.readbyqxmd.com/read/27859461/gene-expression-profiles-of-human-subcutaneous-and-visceral-adipose-derived-stem-cells
#9
Boyun Kim, Boram Lee, Mi-Kyung Kim, Seung Pyo Gong, Noh Hyun Park, Hyun Hoon Chung, Hee Seung Kim, Jae Hong No, Woong Yang Park, Ae Kyung Park, Jeong Mook Lim, Yong Sang Song
Subcutaneous and visceral adipose tissues show a different risk effect on metabolic disorders because they have distinct cellular properties. We isolated stem cells from the separate human adipose tissues to investigate that subcutaneous and visceral fat depots have metabolic differences. Adipose-derived stem cells (ASCs) were characterized by immunophenotype and differentiation potentials into adipogenic, osteogenic, and chondrogenic lineages. Although subcutaneous and visceral ASCs (S-ASC and V-ASC) express same surface markers (CD31(-) , CD34(-) , CD45(-) , CD73(+) , CD90(+) , and CD105(+) ) and have differentiation potentials, S-ASCs had higher capacity to proliferate and to differentiate into adipogenic lineage than V-ASCs...
November 17, 2016: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/27855539/mouse-p2y4-nucleotide-receptor-is-a-negative-regulator-of-cardiac-adipose-derived-stem-cell-differentiation-and-cardiac-fat-formation
#10
Anne Lemaire, Marion Vanorlé, Michael Horckmans, Larissa di Pietrantonio, Sophie Clouet, Bernard Robaye, Jean-Marie Boeynaems, Didier Communi
Cardiac adipose-derived stem cells (cASCs) have the ability to differentiate into multiple cell lineages giving them a high potential for use in regenerative medicine. Cardiac fat tissue still raises many unsolved questions related to its formation and features. P2Y nucleotide receptors have already been described as regulators of differentiation of bone-marrow derived stem cells but remain poorly investigated in cASCs. We defined here the P2Y4 nucleotide receptor as a negative regulator of cardiac fat formation and cASC differentiation...
November 17, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27855196/age-related-changes-in-the-regenerative-potential-of-adipose-derived-stem-cells-isolated-from-the-prominent-fat-pads-in-human-lower-eyelids
#11
Xinhai Ye, Caihe Liao, Guangpeng Liu, Yipin Xu, Jian Tan, Zhenshun Song
The existence of multipotent adipose-derived stem cells isolated from human orbital fat (OF) tissue has shown great therapeutic potential in tissue engineering and regenerative medicine. But the use of stem cells for therapeutic applications is influenced by their proliferative and differentiation potentials, which may be affected by the age of the donor. So far there is little knowledge about the effects of donor age on the biological properties of human orbital adipose-derived stem cells (OASCs). The intraorbital fat protrusion in the lower eyelids occurs as an aging process, and the protruded fat is routinely removed during aesthetic surgeries...
2016: PloS One
https://www.readbyqxmd.com/read/27844208/sirtuins-1-7-expression-in-human-adipose-derived-stem-cells-from-subcutaneous-and-visceral-fat-depots-influence-of-obesity-and-hypoxia
#12
Stefania Mariani, Giuliana Di Rocco, Gabriele Toietta, Matteo A Russo, Elisa Petrangeli, Luisa Salvatori
The sirtuin family comprises seven NAD(+)-dependent deacetylases which control the overall health of organisms through the regulation of pleiotropic metabolic pathways. Sirtuins are important modulators of adipose tissue metabolism and their expression is higher in lean than obese subjects. At present, the role of sirtuins in adipose-derived stem cells has not been investigated yet. Therefore, in this study, we evaluated the expression of the complete panel of sirtuins in adipose-derived stem cells isolated from both subcutaneous and visceral fat of non-obese and obese subjects...
November 14, 2016: Endocrine
https://www.readbyqxmd.com/read/27842906/metformin-preconditioned-adipose-derived-mesenchymal-stem-cells-is-a-better-option-for-the-reversal-of-diabetes-upon-transplantation
#13
Nitya Shree, Ramesh R Bhonde
Metformin is used worldwide as an insulin sensitizer. Adipose derived mesenchymal stem cells have shown promising results in the reducing hyperglycemia. We examined whether preconditioning of adipose derived mesenchymal stem cells (ASCs) with metformin could have a better therapeutic value for the reversal of type 2 diabetes. We compared the effect of metformin, ASCs and metformin preconditioned ASCs (MetASCs) in high fat diet induced C57BL/6 mice by injecting the cells intramuscularly only once where as metformin was given at a concentration of 300mg per kg body weight orally daily...
November 11, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27810224/the-utility-of-adipose-derived-stem-cells-and-stromal-vascular-fraction-for-oncologic-soft-tissue-reconstruction-is-it-safe-a-matter-for-debate
#14
Shaun S Tan, Weiliang Loh
Autologous free-fat grafting (AFG) has emerged as an attractive proposition for soft-tissue reconstruction of various contour defects because it obviates more complex reconstructive options and reduces operative times and donor-site morbidity. Nonetheless, a common complication of this procedure is the resorption of the engrafted fat. Cell-assisted lipotransfer (CAL) is now a well-regarded technique where adipose-derived stem cell (ASC)-rich stromal vascular fraction is admixed with lipoaspirate, increasing the volumetric outcome of fat grafts in light of its potent angiogenic and adipogenic properties...
November 1, 2016: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/27790299/effect-of-adipose-tissue-derived-stem-cell-injection-in-a-rat-model-of-urethral-fibrosis
#15
Premsant Sangkum, Faysal A Yafi, Hogyoung Kim, Mostafa Bouljihad, Manish Ranjan, Amrita Datta, Sree Harsha Mandava, Suresh C Sikka, Asim B Abdel-Mageed, Wayne J G Hellstrom
INTRODUCTION: We sought to evaluate the therapeutic effect of adi-pose tissue-derived stem cells (ADSCs) in a rat model of urethral fibrosis. METHODS: Eighteen (18) male Sprague-Dawley rats (300‒350 g) were divided into three groups: (1) sham (saline injection); (2) urethral fibrosis group (10 μg transforming growth factor beta 1 (TGF-β1) injection); and (3) ADSCs group (10 μg TGF-β1 injection plus 2 × 10(5) ADSCs). Rat ADSCs were harvested from rat inguinal fat pads...
May 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/27789947/effects-of-nanoporous-anodic-titanium-oxide-on-human-adipose-derived-stem-cells
#16
Katarzyna Malec, Joanna Góralska, Magdalena Hubalewska-Mazgaj, Paulina Głowacz, Magdalena Jarosz, Pawel Brzewski, Grzegorz D Sulka, Marian Jaskuła, Iwona Wybrańska
The aim of current bone biomaterials research is to design implants that induce controlled, guided, successful, and rapid healing. Titanium implants are widely used in dental, orthopedic, and reconstructive surgery. A series of studies has indicated that cells can respond not only to the chemical properties of the biomaterial, but also, in particular, to the changes in surface topography. Nanoporous materials remain in focus of scientific queries due to their exclusive properties and broad applications. One such material is nanostructured titanium oxide with highly ordered, mutually perpendicular nanopores...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27786293/comparative-proteomic-analysis-of-extracellular-vesicles-isolated-from-porcine-adipose-tissue-derived-mesenchymal-stem-stromal-cells
#17
Alfonso Eirin, Xiang-Yang Zhu, Amrutesh S Puranik, John R Woollard, Hui Tang, Surendra Dasari, Amir Lerman, Andre J van Wijnen, Lilach O Lerman
Extracellular vesicles (EVs) isolated from mesenchymal stem/stromal cells (MSCs) contribute to recovery of damaged tissue. We have previously shown that porcine MSC-derived EVs transport mRNA and miRNA capable of modulating cellular pathways in recipient cells. To identify candidate factors that contribute to the therapeutic effects of porcine MSC-derived EVs, we characterized their protein cargo using proteomics. Porcine MSCs were cultured from abdominal fat, and EVs characterized for expression of typical MSC and EV markers...
October 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27783699/association-of-17-%C3%AE-estradiol-with-adipose-derived-stem-cells-new-strategy-to-produce-functional-myogenic-differentiated-cells-with-a-nano-scaffold-for-tissue-engineering
#18
Chunxiang Feng, Jinqian Hu, Chang Liu, Shiliang Liu, Guiying Liao, Linjie Song, Xiaoyong Zeng
The increased incidence of stress urinary incontinence (SUI) in postmenopausal women has been proposed to be associated with a reduction in the level of 17-β estradiol (E2). E2 has also been shown to enhance the multi-differentiation ability of adipose-derived stem cells (ASCs) in vitro. However, studies on the potential value of E2 for tissue engineering in SUI treatment are rare. In the present study, we successfully fabricated myogenically differentiated ASCs (MD-ASCs), which were seeded onto a Poly(l-lactide)/Poly(e-caprolactone) electrospinning nano-scaffold, and incorporated E2 into the system, with the aim of improving the proliferation and myogenic differentiation of ASCs...
2016: PloS One
https://www.readbyqxmd.com/read/27781068/chondrogenic-potency-analyses-of-donor-matched-chondrocytes-and-mesenchymal-stem-cells-derived-from-bone-marrow-infrapatellar-fat-pad-and-subcutaneous-fat
#19
John Garcia, Claire Mennan, Helen S McCarthy, Sally Roberts, James B Richardson, Karina T Wright
Autologous chondrocyte implantation (ACI) is a cell-based therapy that has been used clinically for over 20 years to treat cartilage injuries more efficiently in order to negate or delay the need for joint replacement surgery. In this time, very little has changed in the ACI procedure, but now many centres are considering or using alternative cell sources for cartilage repair, in particular mesenchymal stem cells (MSCs). In this study, we have tested the chondrogenic potential of donor-matched MSCs derived from bone marrow (BM), infrapatellar fat pad (FP), and subcutaneous fat (SCF), compared to chondrocytes...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27777108/conditional-tenomodulin-overexpression-favors-tenogenic-lineage-differentiation-of-transgenic-mouse-derived-cells
#20
Yuan Shi, Yao Xiong, Yongkang Jiang, Zhiyong Zhang, Guangdong Zhou, Wenjie Zhang, Yilin Cao, Jing He, Wei Liu
Tenomodulin (TNMD) is a type II transmembrane protein that is widely expressed in a variety of avascular connective tissues and fat tissue. Its function remains largely unknown except for a marker for mature tenocytes. This study reports the generation of tetracycline (Tet)-on driven conditional TNMD overexpressing mice and thus to provide a tool for systemic investigation of its role in regulating functions of various tissues. The current study focuses on in vitro comparison of tenogenic differentiation potentials induced by doxycycline (Dox) treatment among bone marrow derived stem cells (BMSCs), adipose derived stem cells (ASCs), dermal fibroblasts (DFs) and tenocytes (TCs) of the same transgenic mice...
October 21, 2016: Gene
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