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adipose progenitors

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https://www.readbyqxmd.com/read/28611394/identification-of-the-ectoenzyme-cd38-as-a-marker-of-committed-preadipocytes
#1
A Carrière, Y Jeanson, J-A Côté, C Dromard, A Galinier, S Menzel, C Barreau, S Dupuis-Coronas, E Arnaud, A Girousse, V Cuminetti, J Paupert, B Cousin, C Sengenes, F Koch-Nolte, A Tchernof, L Casteilla
BACKGROUND/OBJECTIVES: Characterization of the adipocyte cellular lineage is required for a better understanding of white adipose tissue homeostasis and expansion. While several studies have focused on the phenotype of the most immature adipocyte progenitors, very few tools exist to identify committed cells. In haematopoiesis, the CD38 ectoenzyme is largely used to delineate various stages of stem cell lineage commitment. We hypothesize that this marker could be used to identify committed preadipocytes...
June 14, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28598385/the-roles-of-long-non-protein-coding-rnas-in-osteo-adipogenic-lineage-commitment
#2
REVIEW
Hirotaka Yoshioka, Yuji Yoshiko
Osteoblasts and adipocytes share a common mesenchymal progenitor in the bone marrow. This implies that a reciprocal relationship exists between osteogenic and adipogenic differentiation. Further, cells of osteoblast lineage transdifferentiate into adipocytes under some circumstances. Dysregulation of osteo-adipogenic fate-determination leads to bone diseases such as osteoporosis, accompanied by an increase in bone marrow adipose tissue. Thus, the fine-tuning of osteo-adipogenesis is necessary for bone homeostasis...
June 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28593712/human-adipose-tissue-derived-tenomodulin-positive-subpopulation-of-stem-cells-a-promising-source-of-tendon-progenitor-cells
#3
A I Gonçalves, P M Gershovich, M T Rodrigues, R L Reis, M E Gomes
Cell-based therapies are of particular interest for tendon and ligament regeneration given the low regenerative potential of these tissues. Adipose tissue is an abundant source of stem cells, which may be employed for the healing of tendon lesions. However, human adult multipotent adipose-derived stem cells (hASCs) isolated from the stromal vascular fraction (SVF) of adipose tissue originate highly heterogeneous cell populations that hinder their use in specific tissue-oriented applications. In this study, distinct subpopulations of hASCs were immunomagnetic separated and their tenogenic differentiation capacity evaluated in the presence of several growth factors (GFs), namely EGF, bFGF, TGF-β1 and PDGF-BB, that are well-known regulators of tendon development, growth and healing...
June 7, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28592814/impairment-of-the-activin-a-autocrine-loop-by-lopinavir-reduces-self-renewal-of-distinct-human-adipose-progenitors
#4
Christophe Ravaud, Martin Paré, Stéphane Azoulay, Christian Dani, Annie Ladoux
Maintenance of the adipose tissue requires a proper balance between self-renewal and differentiation of adipose progenitors (AP). Any deregulation leads either to fat overexpansion and obesity or fat loss and consequent lipodystrophies. Depending on the fat pad location, APs and adipocytes are heterogeneous. However, information on the pharmacological sensitivity of distinct APs to drugs known to alter the function of adipose tissue, especially HIV protease inhibitors (PIs) is scant. Here we show that PIs decreased proliferation and clonal expansion of APs, modifying their self-renewal potential...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28589682/expansion-of-adipose-tissue-derived-stromal-cells-at-physiologic-hypoxia-attenuates-replicative-senescence
#5
Andrey Ratushnyy, Margarita Lobanova, Ludmila B Buravkova
Multipotent mesenchymal stromal cells are considered as a perspective tool in cell therapy and regenerative medicine. Unfortunately, autologous cell therapy does not always provide positive outcomes in elder donors, perhaps as a result of the alterations of stem cell compartments. The mechanisms of stem and progenitor cell senescence and the factors engaged are investigated intensively. In present paper, we elucidated the effects of tissue-related O2 on morphology, functions, and transcriptomic profile of adipose tissue-derived stromal cells (ASCs) in replicative senescence in vitro model...
June 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28575969/li-activated-nanohydroxyapatite-doped-with-eu-3-ions-enhances-proliferative-activity-and-viability-of-human-stem-progenitor-cells-of-adipose-tissue-and-olfactory-ensheathing-cells-further-perspective-of-nhap-li-eu-3-application-in-theranostics
#6
Krzysztof Marycz, Paulina Sobierajska, Agnieszka Smieszek, Monika Maredziak, Katarzyna Wiglusz, Rafal J Wiglusz
Spinal cord injuries (SCI) often require simultaneous regeneration of nerve tissue and bone. Hydroxyapatites are described as bioresorbable materials with proper biocompatibility and osteoconductivity, therefore its application for spinal surgery is considered. In this paper, we present repeatable method for developing nanocrystalline calcium hydroxyapatites structurally modified with Li(+) ions (nHAP:Li(+)). Obtained biomaterials were profoundly characterized in terms of their physicochemical properties. Moreover, we have shown that nHAP:Li(+) doped with europium (Eu(3+)) may serve as a theranostic agent, what additionally extend its potential usage for SCI treatment...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28573141/c-kit-positive-adipose-tissue-derived-mesenchymal-stem-cells-promote-the-growth-and-angiogenesis-of-breast-cancer
#7
Wenjie Li, Haiqian Xu, Cheng Qian
BACKGROUND: Adipose tissue-derived mesenchymal stem cells (ASCs) improve the regenerative ability and retention of fat grafts for breast reconstruction in cancer patients following mastectomy. However, ASCs have also been shown to promote breast cancer cell growth and metastasis. For the safety of ASC application, we aimed to identify specific markers for the subpopulation of ASCs that enhance the growth of breast cancer. METHODS: ASCs and bone marrow-derived vascular endothelial progenitor cells (EPCs) were isolated from Balb/c mice...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28562647/impact-of-adipose-tissue-or-umbilical-cord-derived-mesenchymal-stem-cells-on-the-immunogenicity-of-human-cord-blood-derived-endothelial-progenitor-cells
#8
Kefang Tan, Ke Zheng, Daiye Li, Haiyuan Lu, Siqi Wang, Xuan Sun
The application of autologous endothelial progenitor cell (EPC) transplantation is a promising approach in therapeutic cardiovascular diseases and ischemic diseases. In this study, we compared the immunogenicity of EPCs, adipose tissue (AD)-derived mesenchymal stem cells (MSCs) and umbilical cord (UC)-derived MSCs by flow cytometry and the mixed lymphocyte reaction. The impact of AD-MSCs and UC-MSCs on the immunogenicity of EPCs was analyzed by the mixed lymphocyte reaction and cytokine secretion in vitro and was further tested by allogenic peripheral blood mononuclear cell (PBMC) induced immuno-rejection on a cell/matrigel graft in an SCID mouse model...
2017: PloS One
https://www.readbyqxmd.com/read/28549249/cd146-mcam-in-human-cs-dlk1-cs-cd34-adipose-stromal-progenitor-cells
#9
Susanne Hörl, Asim Ejaz, Sebastian Ernst, Monika Mattesich, Andreas Kaiser, Brigitte Jenewein, Marit E Zwierzina, Sarina Hammerle, Carina Miggitsch, Maria C Mitterberger-Vogt, Claudia Krautgasser, Gerhard Pierer, Werner Zwerschke
To precisely characterize CD146 in adipose stromal/progenitor cells (ASCs) we sorted the stromal vascular faction (SVF) of human abdominal subcutaneous white adipose tissue (sWAT) according to cell surface (cs) expression of CD146, DLK1 and CD34. This test identified three main SVF cell populations: ~50% cs-DLK1(-)/cs-CD34(+)/cs-CD146(-) ASCs, ~7.5% cs-DLK1(+)/cs-CD34(dim/+)/cs-CD146(+) and ~7.5% cs-DLK1(+)/cs-CD34(dim/+)/cs-CD146(-) cells. All cells contained intracellular CD146. Whole mount fluorescent IHC staining of small vessels detected CD146(+) endothelial cells (CD31(+)/CD34(+)/CD146(+)) and pericytes (CD31(-)/CD34(-)/CD146(+) ASCs)...
May 17, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28536316/-adipose-stem-cell-system
#10
Yumiko Oishi, Ichiro Manabe
Adipose tissues are the major organ that controls systemic energy metabolism and maintain homeostasis by storing lipids, dissipating them as heat, and producing various adipokines. There are two major classes of adipocytes: white and brown adipocytes. White adipocytes store and release lipids, while brown adipocytes burn substrates to produce heat. In addition to classical brown adipose tissues consisting of brown adipocytes, cold exposure and β3 stimulation induce development of brown cell-like "beige" adipocytes in white adipose tissues...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28532226/novel-biological-therapies-for-the-treatment-of-diabetic-foot-ulcers
#11
Jennifer Adeghate, Syed Nurulain, Kornélia Tekes, Erzsébet Fehér, Huba Kalász, Ernest Adeghate
The number of people with diabetes mellitus (DM) is estimated to exceed 640 million by the year 2040. Diabetic foot ulcer (DFU) is a debilitating illness that affects more than 2% of DM patients. DFU is caused by DM-induced neural and vascular lesions leading to a reduced sensation and microcirculation. The increase in the prevalence of DFU has prompted researchers to find new therapies for the management of DFU. Areas covered: This review presents the current status of novel biological therapies used in the treatment of DFU...
June 1, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28529943/the-complexity-of-pdgfr-signaling-regulation-of-adipose-progenitor-maintenance-and-adipocyte-myofibroblast-transition
#12
EDITORIAL
Christian Dani, Alexander Pfeifer
No abstract text is available yet for this article.
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28526415/lnk-deficiency-aggregates-palmitate-induced-preadipocyte-apoptosis
#13
Jie-Yi Du, Chen-Chen Jin, Guo-Hao Wang, Xiong-Qing Huang, Jian-Ding Cheng, Xue-Jun Wen, Xiao-Miao Zhao, Guan-Lei Wang
LNK (SH2B3) is an intracellular adaptor protein that negatively regulates cellular proliferation or self-renewal of hematopoietic stem cells and some other progenitor cells. LNK is also recognized as a key regulator of insulin resistance and inflammatory responses in several tissues and organs. It is unknown the function of LNK in adipose tissue. We previously demonstrated that type 2 diabetes mellitus (T2DM) mouse model had elevated serum free fatty acids (FFAs) levels and increased preadipocyte apoptosis in visceral fat tissue, showing the occurrence of lipotoxicity...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28489940/isolation-and-characterization-of-canine-perivascular-stem-stromal-cells-for-bone-tissue-engineering
#14
Aaron W James, Xinli Zhang, Mihaela Crisan, Winters R Hardy, Pei Liang, Carolyn A Meyers, Sonja Lobo, Venu Lagishetty, Martin K Childers, Greg Asatrian, Catherine Ding, Yu-Hsin Yen, Erin Zou, Kang Ting, Bruno Peault, Chia Soo
For over 15 years, human subcutaneous adipose tissue has been recognized as a rich source of tissue resident mesenchymal stem/stromal cells (MSC). The isolation of perivascular progenitor cells from human adipose tissue by a cell sorting strategy was first published in 2008. Since this time, the interest in using pericytes and related perivascular stem/stromal cell (PSC) populations for tissue engineering has significantly increased. Here, we describe a set of experiments identifying, isolating and characterizing PSC from canine tissue (N = 12 canine adipose tissue samples)...
2017: PloS One
https://www.readbyqxmd.com/read/28482121/cell-therapy-for-stress-urinary-incontinence-present-day-frontiers
#15
REVIEW
Andrey Vinarov, Anthony Atala, James Yoo, Roman Slusarenco, Marat Zhumataev, Alexey Zhito, Denis Butnaru
CONTEXT: Stress urinary incontinence (SUI) significantly diminishes the quality of patients' lives. Currently available surgical and nonsurgical therapies remain far from ideal. At present advancements in cellular technologies have stirred growing interest in the use of autologous cell treatments aimed to regain urinary control. OBJECTIVE: To conduct a review of the literature and analyze preclinical and clinical studies dedicated to various cell therapies for SUI, assessing their effectiveness, safety, and future prospects...
May 8, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28470788/cd36-is-a-marker-of-human-adipocyte-progenitors-with-pronounced-adipogenic-and-triglyceride-accumulation-potential
#16
Hui Gao, Fanny Volat, Lakshmi Sandhow, Jean Galitzky, Thuy Nguyen, David Esteve, Gaby Åström, Niklas Mejhert, Severine Ledoux, Claire Thalamas, Peter Arner, Jean-Claude Guillemot, Hong Qian, Mikael Rydén, Anne Bouloumié
White adipose tissue (WAT) expands in part through adipogenesis, a process involving fat cell generation and fatty acid (FA) storage into triglycerides (TGs). Several findings suggest that inter-individual and regional variations in adipogenesis are linked to metabolic complications. We aimed to identify cellular markers that define human adipocyte progenitors (APs) with pronounced adipogenic/TG storage ability. Using an unbiased single cell screen of passaged human adipose-derived stromal cells (hADSCs) we identified cell clones with similar proliferation rates but discordant capabilities to undergo adipogenic differentiation...
May 4, 2017: Stem Cells
https://www.readbyqxmd.com/read/28464274/association-between-echocardiographic-epicardial-fat-thickness-and-circulating-endothelial-progenitor-cell-level-in-patients-with-stable-angina-pectoris
#17
Ting-Yung Chang, Chien-Yi Hsu, Chun-Chih Chiu, Ruey-Hsing Chou, Hsin-Lei Huang, Chin-Chou Huang, Hsin-Ban Leu, Po-Hsun Huang, Jaw-Wen Chen, Shing-Jong Lin
BACKGROUND: Epicardial adipose tissue is associated with coronary artery disease (CAD). Circulating endothelial progenitor cell (EPC) level represents a marker of endothelial dysfunction and vascular health. However, the relationship between epicardial fat and circulating EPC remains unknown. This study aimed to investigate association between echocardiographic epicardial fat thickness (EFT) and circulating EPC level. HYPOTHESIS: Epicardial fat causes inflammation and contributes to progression of CAD...
May 2, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28462460/combined-administration-of-ascs-and-bmp-12-promotes-an-m2-macrophage-phenotype-and-enhances-tendon-healing
#18
Richard H Gelberman, Stephen W Linderman, Rohith Jayaram, Anna D Dikina, Shelly Sakiyama-Elbert, Eben Alsberg, Stavros Thomopoulos, Hua Shen
BACKGROUND: Outcomes after intrasynovial tendon repair are highly variable. An intense inflammatory cascade followed by a delayed healing response can cause adhesion formation and repair-site failure that severely impair the function of repaired digits. No effective remedies exist to fully address these issues. Cell- and growth factor-based therapies have been shown to modulate inflammation and improve cell proliferation and matrix synthesis and therefore are promising treatment approaches for intrasynovial tendon repair...
May 1, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28460416/the-skeletal-cell-derived-molecule-sclerostin-drives-bone-marrow-adipogenesis
#19
Heather Fairfield, Carolyne Falank, Elizabeth Harris, Victoria Demambro, Michelle McDonald, Jessica A Pettitt, Sindhu T Mohanty, Peter Croucher, Ina Kramer, Michaela Kneissel, Clifford J Rosen, Michaela R Reagan
The bone marrow niche is a dynamic and complex microenvironment that can both regulate, and be regulated by the bone matrix. Within the bone marrow (BM), mesenchymal stromal cell (MSC) precursors reside in a multi-potent state and retain the capacity to differentiate down osteoblastic, adipogenic, or chondrogenic lineages in response to numerous biochemical cues. These signals can be altered in various pathological states including, but not limited to, osteoporotic-induced fracture, systemic adiposity, and the presence of bone-homing cancers...
April 29, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28452591/donor-dependent-variances-of-human-adipose-derived-stem-cells-in-respect-to-the-in-vitro-endothelial-cell-differentiation-capability
#20
Jascha Ell, Sybille Regn, Anna-Maria Buchberger, Achim von Bomhard, Thomas Stark, Jan-Thorsten Schantz, Katharina Storck
Human adipose-derived stem cells (ASC) have been shown to differentiate into mature adipocytes and to play an important role in creating the vasculature, necessary for white adipose tissue to function. To study the stimulatory capacity of ASC on endothelial progenitor cells we used a commercially available co-culture system (V2a - assay). ASC, isolated from lipoaspirates of 18 healthy patients, were co-cultured for 13 d on endothelial progenitor cells. Using anti CD31 immunostaining, cells that had undergone endothelial differentiation were quantified after the defined co-cultivation period...
January 2, 2017: Adipocyte
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