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Adipocyte stem cells

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https://www.readbyqxmd.com/read/29678576/aging-impairs-beige-adipocyte-differentiation-of-mesenchymal-stem-cells-via-the-reduced-expression-of-sirtuin-1
#1
Vuong Cat Khanh, Amin Firman Zulkifli, Chiho Tokunaga, Toshiharu Yamashita, Yuji Hiramatsu, Osamu Ohneda
In the body, different types of adipose tissue perform different functions, with brown and beige adipose tissues playing unique roles in dissipating energy. Throughout life, adipocytes are regenerated from progenitors, and this process is impaired by aging. One of the progenitors of adipocytes are mesenchymal stem cells (MSCs), which have recently become a promising tool for stem cell therapy. However, whether or not aging impairs the brown/beige adipocyte differentiation of adipose tissue-derived MSCs (AT-MSCs) remains unclear...
April 17, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29675492/endometrial-mesenchymal-stem-stromal-cells-in-mature-and-immature-sheep-an-in-vitro-study
#2
Farnaz Ghobadi, Farhad Rahmanifar, Davood Mehrabani, Amin Tamadon, Mehdi Dianatpour, Shahrokh Zare, Iman Razeghian Jahromi
Background: Endometrial mesenchymal stem stromal cells (EnMSCs) are critical for uterine function, repair, and regeneration. Objective: This study introduced isolation technique of EnMSCs and compared the characteristics of EnMSCs in mature and immature ewes. Materials and Methods: Endometrial tissue samples from the uterus of 10 ewes were collected from the slaughterhouse. Endometrial cells were isolated from tissue using cold incubation and then chopping and treating was performed with collagenase type I...
February 2018: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29673856/2-3-7-8-tetrachlorodibenzo-p-dioxin-dose-dependently-increases-bone-mass-and-decreases-marrow-adiposity-in-juvenile-mice
#3
Kelly A Fader, Rance Nault, Sandi Raehtz, Laura R McCabe, Timothy R Zacharewski
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and other aryl hydrocarbon receptor (AhR) agonists have been shown to regulate bone development and remodeling in a species-, ligand-, and age-specific manner, however the underlying mechanisms remain poorly understood. In this study, we characterized the effect of 0.01-30 μg/kg TCDD on the femoral morphology of male and female juvenile mice orally gavaged every 4 days for 28 days and used RNA-Seq to investigate gene expression changes associated with the resultant phenotype...
April 16, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29666189/single-cell-rna-seq-reveals-cell-heterogeneity-and-hierarchy-within-mouse-mammary-epithelia
#4
Heng Sun, Zhengqiang Miao, Xin Zhang, Un In Chan, Sek Man Su, Sen Guo, Chris Koon Ho Wong, Xiaoling Xu, Chu-Xia Deng
The mammary gland is very intricately and well organized into distinct tissues, including epithelia, endothelia, adipocytes, and stromal and immune cells. Many mammary gland diseases, such as breast cancer arise from abnormalities in the mammary epithelium, which is mainly composed of two distinct lineages, the basal and luminal cells. Because of the limitation of traditional transcriptome analysis of bulk mammary cells, the hierarchy and heterogeneity of mammary cells within these two lineages remain unclear...
April 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29665934/-effect-of-regulating-ppar%C3%AE-by-mtor-signaling-on-adipogenesis-of-bone-marrow-mesenchymal-stem-cells-from-aplastic-anemia
#5
Fang Wei, Wei-Huan Zhang, Xiu-Lian Zhang, Xiao-Jing Ge, Shu-Qin Zhang
OBJECTIVE: To study the effect and mechanism of mTOR signaling on adipogenesis of bone marrow mesenchymal stem cells(BM-MSCs) from aplastic anemia (AA) patients through regulation of PPARγ. METHODS: BM-MSCs were isolated from 24 newly diagnosed AA patients and 24 healthy controls. The surface antigen expression of BM-MSCs was identified by flow cytometry. The capacity of adipogenic differentiation of BM-MSCs was determined by lipid droplets based on Oil Red O staining and by the expression of FABP4 based on Western blot...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29662535/adipose-tissue-stem-cells-in-regenerative-medicine
#6
REVIEW
Vanesa Verónica Miana, Elio A Prieto González
Adipose tissue-derived stem cells (ADSCs) are mesenchymal cells with the capacity for self-renewal and multipotential differentiation. This multipotentiality allows them to become adipocytes, chondrocytes, myocytes, osteoblasts and neurocytes among other cell lineages. Stem cells and, in particular, adipose tissue-derived cells, play a key role in reconstructive or tissue engineering medicine as they have already proven effective in developing new treatments. The purpose of this work is to review the applications of ADSCs in various areas of regenerative medicine, as well as some of the risks associated with treatment with ADSCs in neoplastic disease...
2018: Ecancermedicalscience
https://www.readbyqxmd.com/read/29652604/an-engineered-human-adipose-collagen-model-for-in-vitro-breast-cancer-cell-migration-studies
#7
Robert David Hume, Lorraine Berry, Stefanie Reichelt, Michael D'Angelo, Jenny Gomm, Ruth Elizabeth Cameron, Christine Watson
Adipocytes are one of the major stromal cell components of the human breast. These cells play a key role in the development of the gland and are implicated in breast tumorigenesis. Frequently, directional stromal collagen I fibres are found surrounding aggressive breast tumours. These fibres enhance breast cancer cell migration and are associated with poor patient prognosis. We sought to recapitulate these stromal components in vitro to provide a 3D model comprising human adipose tissue and anisotropic collagen fibres...
March 8, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29626795/growth-hormone-facilitates-5-azacytidine-induced-myogenic-but-inhibits-5-azacytidine-induced-adipogenic-commitment-in-c3h10t1-2-mesenchymal-stem-cells
#8
Dan Jia, Weijiang Zheng, Honglin Jiang
The C3H10T1/2 cells are considered mesenchymal stem cells (MSCs) because they can be induced to become the progenitor cells for myocytes, adipocytes, osteoblasts, and chondrocytes by the DNA methyltransferase inhibitor 5'-azacytidine. In this study, we determined the effect of growth hormone (GH) on the myogenic and adipogenic lineage commitment in C3H10T1/2 cells. The C3H10T1/2 cells were treated with recombinant bovine GH in the presence or absence of 5'-azacytidine for 4 days. The myogenic commitment in C3H10T1/2 cells was assessed by immunostaining them for MyoD, the marker for myoblasts, and by determining their capacity to differentiate into the multinucleated myotubes...
March 28, 2018: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29617719/platelet-rich-plasma-adipose-tissue-and-scar-modulation
#9
Lohrasb R Sayadi, Zaidal Obagi, Derek A Banyard, Mary E Ziegler, Jordyne Prussak, Luke Tomlinson, Gregory R D Evans, Alan D Widgerow
In developed countries, over 100 million people per year form scars, of which 30% become hypertrophic. These scars are defined histologically by the presence of persistently contractile myofibroblasts. Recent in vitro research suggests that certain bone morphogenic proteins (BMP) can induce scar myofibroblast dedifferentiation and reprogramming into adipocytes. Since platelets contain BMPs within their granules, it is possible that platelet-rich plasma (PRP) can act as a vehicle to deliver BMP to sites of scarring or potential scarring...
March 30, 2018: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29615915/application-of-mesenchymal-stem-cells-for-therapeutic-agent-delivery-in-anti-tumor-treatment
#10
REVIEW
Daria S Chulpanova, Kristina V Kitaeva, Leysan G Tazetdinova, Victoria James, Albert A Rizvanov, Valeriya V Solovyeva
Mesenchymal stem cells (MSCs) are non-hematopoietic progenitor cells, which can be isolated from different types of tissues including bone marrow, adipose tissue, tooth pulp, and placenta/umbilical cord blood. There isolation from adult tissues circumvents the ethical concerns of working with embryonic or fetal stem cells, whilst still providing cells capable of differentiating into various cell lineages, such as adipocytes, osteocytes and chondrocytes. An important feature of MSCs is the low immunogenicity due to the lack of co-stimulatory molecules expression, meaning there is no need for immunosuppression during allogenic transplantation...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29611648/phenotypic-characteristics-of-feline-adipose-derived-stem-cells-affected-by-cell-passage-number
#11
S Panasophonkul, P Samart, K Kongon, A Sathanawongs
In this study we evaluated the influence of passage number on the phenotypic characteristics of feline adipose-derived stem cells (ASCs) in order to develop a broader understanding of their dynamics. Feline ASCs were individually isolated from five domestic cats and subjected to proliferative culture at passage (P) 2, 6 and 10. The cells at each sub-passage were examined in regard to their phenotypic properties associated with multipotent mesenchymal stem cells (MSCs), such as morphology, proliferation kinetics, self-renewal, and expression of MSCs-specific surface markers...
December 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29606893/first-in-man-intravenous-implantation-of-stromal-vascular-fraction-in-psoriasis-a-case-study
#12
Kristin Comella, Michelle Parlo, Rosemary Daly, Kellie Dominessy
Background: Stromal vascular fraction (SVF) is a mixture of adipose-derived stem cells/mesenchymal stem cells, endothelial/progenitors, pericytes, fibroblasts, and other cells obtained from fat tissue. A small sample of fat or adipose tissue can be obtained under local anesthesia using a cannula. After an enzymatic digestion and centrifugation, the adipocytes (fat cells) are removed to obtain an SVF. Here, we describe the rationale and, to our knowledge, the first clinical implementation of SVF intravenously in a patient with severe psoriasis...
2018: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/29606342/what-can-brown-ing-do-for-you
#13
REVIEW
Amar M Singh, Stephen Dalton
Human stem cell-based models of thermogenic adipocytes provide an opportunity for the establishment of new therapeutics, modeling of disease mechanisms, and understanding of development. Pluripotent stem cells, adipose-derived stem cells/preadipocytes, and programming-reprogramming-based approaches have been used to develop cell-based platforms for drug screening and transplantable therapeutics in the metabolic disease arena. Here we provide a detailed overview of these approaches, the latest advances in this field, and the opportunities and shortcomings they present...
March 29, 2018: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/29605806/actin-depolymerization-enhances-adipogenic-differentiation-in-human-stromal-stem-cells
#14
Li Chen, Huimin Hu, Weimin Qiu, Kaikai Shi, Moustapha Kassem
Human stromal stem cells (hMSCs) differentiate into adipocytes that play a role in skeletal tissue homeostasis and whole body energy metabolism. During adipocyte differentiation, hMSCs exhibit significant changes in cell morphology suggesting changes in cytoskeletal organization. Here, we examined the effect of direct modulation of actin microfilament dynamics on adipocyte differentiation. Stabilizing actin filaments in hMSCs by siRNA-mediated knock down of the two main actin depolymerizing factors (ADFs): Cofilin 1 (CFL1) and Destrin (DSTN) or treating the cells by Phalloidin reduced adipocyte differentiation as evidenced by decreased number of mature adipocytes and decreased adipocyte specific gene expression (ADIPOQ, LPL, PPARG, FABP4)...
March 18, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29604386/applications-of-inflammation-derived-gingival-stem-cells-for-testing-the-biocompatibility-of-dental-restorative-biomaterials
#15
A Soancă, M Lupse, M Moldovan, E Pall, M Cenariu, A Roman, O Tudoran, P Surlin, O Șorițău
BACKGROUND: Normal or inflamed gingival tissues are regarded as a source of mesenchymal stem cells (MSCs) abundant and easily accessible through minimally invasive dental procedures. Due to the proximity of dental resin composites to gingival tissues and to the possible local cytotoxic effect of the eluted components, gingiva-derived MSCs could be used to investigate the biocompatibility of dental biomaterials. PURPOSE: The present research aimed to isolate (MSCs) from inflamed and normal gingiva, to fully characterize them and to observe their behavior in relation with some commercial resin composite materials and one experimental material...
March 28, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29599975/exosomes-as-a-novel-pathway-for-regulating-development-and-diseases-of-the-skin
#16
Ying Liu, Haidong Wang, Juan Wang
Exosomes are one of the most potent intercellular communicators, which are able to communicate with adjacent or distant cells. Exosomes deliver various bioactive molecules, including membrane receptors, proteins, mRNA and microRNA, to target cells and serve roles. Recent studies have demonstrated that exosomes may regulate the functions and diseases of the skin, which is the largest organ of the human body. The abnormal functions of the skin lead to the progression of scleroderma, melanoma, baldness and other diseases...
March 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29593567/kisspeptin-receptor-gpr54-promotes-adipocyte-differentiation-and-fat-accumulation-in-mice
#17
Tongtong Wang, Xueqin Cui, Ling Xie, Roumei Xing, Panpan You, Yongliang Zhao, Yiqing Yang, Yongqian Xu, Li Zeng, Huaqing Chen, Mingyao Liu
GPR54, Kisspeptin-1 receptor (KISS1R), a member of rhodopsin family, plays a critical role in puberty development and has been proposed to be involved in regulation of energy metabolism. This study aims to explore the function of GPR54 in adipogenesis, lipid metabolism, and obesity in addition to its effect through hormones. Results showed that when fed a high-fat diet, the weight growth of castrated or ovariectomized Gpr54 -/- mice was significantly slower than that of WT control, together with a lower triglyceride concentration...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29573183/label-free-quantitative-chemical-imaging-and-classification-analysis-of-adipogenesis-using-mouse-embryonic-stem-cells
#18
Francesco Masia, Adam Glen, Phil Stephens, Wolfgang Langbein, Paola Borri
Stem cells have received much attention recently for their potential utility in regenerative medicine. The identification of their differentiated progeny often requires complex staining procedures, and is challenging for intermediary stages which are a priori unknown. In this work, the ability of label-free quantitative coherent anti-Stokes Raman scattering micro-spectroscopy to identify populations of intermediate cell states during the differentiation of murine embryonic stem cells into adipocytes is assessed...
March 23, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29571958/transplantation-of-dedifferentiated-fat-cell-derived-micromass-pellets-contributed-to-cartilage-repair-in-the-rat-osteochondral-defect-model
#19
Manabu Shimizu, Taro Matsumoto, Shinsuke Kikuta, Munenori Ohtaki, Koichiro Kano, Hiroaki Taniguchi, Shu Saito, Masahiro Nagaoka, Yasuaki Tokuhashi
BACKGROUND: Mature adipocyte-derived dedifferentiated fat (DFAT) cells possesses the ability to proliferate effectively and the potential to differentiate into multiple linages of mesenchymal tissue; similar to adipose-derived stem cells (ASCs). The purpose of this study is to examine the effects of DFAT cell transplantation on cartilage repair in a rat model of osteochondral defects. METHODS: Full-thickness osteochondral defects were created in the knees of Sprague-Dawley rats bilaterally...
March 20, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29569543/effect-of-nutritional-supplement-on-bone-marrow-derived-mesenchymal-stem-cells-from-aplastic-anaemia
#20
Shihua Luo, Yinghai Chen, Lifen Zhao, Xia Qi, Xiaoyan Miao, Huimin Zhou, Li Jia
Aplastic anaemia (AA) is characterised by pancytopenia resulting from a marked reduction in haemopoietic stem cells (HSC). The regulation of haemopoiesis depends on the interaction between HSC and various cells of the bone marrow (BM) microenvironment, including BM-derived mesenchymal stromal cells (BMSC). The purpose of this study was to analyse the biological effect of nutritional supplement (NS), a dietary supplement consisting of thirty-six compounds: amino acids, nucleotides, vitamins and micronutrients on the BMSC of AA rats...
April 2018: British Journal of Nutrition
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