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https://www.readbyqxmd.com/read/29343445/development-regulation-metabolism-and-function-of-bone-marrow-adipose-tissues
#1
Ziru Li, Julie Hardij, Devika P Bagchi, Erica L Scheller, Ormond A MacDougald
Most adipocytes exist in discrete depots throughout the body, notably in well-defined white and brown adipose tissues. However, adipocytes also reside within specialized niches, of which the most abundant is within bone marrow. Whereas bone marrow adipose tissue (BMAT) shares many properties in common with white adipose tissue, the distinct functions of BMAT are reflected by its development, regulation, protein secretion, and lipid composition. In addition to its potential role as a local energy reservoir, BMAT also secretes proteins, including adiponectin, RANK ligand, dipeptidyl peptidase-4, and stem cell factor, which contribute to local marrow niche functions and which may also influence global metabolism...
January 14, 2018: Bone
https://www.readbyqxmd.com/read/29342317/osteoblast-like-mc3t3-e1-cells-prefer-glycolysis-for-atp-production-but-adipocyte-like-3t3-l1-cells-prefer-oxidative-phosphorylation
#2
Anyonya R Guntur, Akos A Gerencser, Phuong T Le, Victoria E DeMambro, Sheila A Bornstein, Shona A Mookerjee, David E Maridas, David E Clemmons, Martin D Brand, Clifford J Rosen
Mesenchymal stromal cells (MSCs) are early progenitors that can differentiate into osteoblasts, chondrocytes and adipocytes. We hypothesized that osteoblasts and adipocytes utilize distinct bioenergetic pathways during MSC differentiation. To test this hypothesis, we compared the bioenergetic profiles of pre-osteoblast MC3T3-E1 cells and calvarial osteoblasts with pre-adipocyte 3T3L1 cells, before and after differentiation. Differentiated MC3T3-E1 osteoblasts met ATP demand mainly by glycolysis with minimal reserve glycolytic capacity, whereas non-differentiated cells generated ATP through oxidative phosphorylation...
January 17, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29338788/high-throughput-immunophenotypic-characterization-of-bone-marrow-and-cord-blood-derived-mesenchymal-stromal-cells-reveals-common-and-differentially-expressed-markers-identification-of-angiotensin-converting-enzyme-cd143-as-a-marker-differentially-expressed
#3
Eliana Amati, Omar Perbellini, Gianluca Rotta, Martina Bernardi, Katia Chieregato, Sabrina Sella, Francesco Rodeghiero, Marco Ruggeri, Giuseppe Astori
BACKGROUND: Mesenchymal stromal cells (MSC) are a heterogeneous population of multipotent progenitors used in the clinic because of their immunomodulatory properties and their ability to differentiate into multiple mesodermal lineages. Although bone marrow (BM) remains the most common MSC source, cord blood (CB) can be collected noninvasively and without major ethical concerns. Comparative studies comprehensively characterizing the MSC phenotype across several tissue sources are still lacking...
January 16, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29338385/does-the-mesenchymal-stem-cell-source-influence-smooth-muscle-regeneration-in-tissue-engineered-urinary-bladders
#4
Marta Pokrywczynska, Arkadiusz Jundzill, Karolina Warda, Lukasz Buchholz, Marta Rasmus, Jan Adamowicz, Magdalena Bodnar, Andrzej Marszalek, Anna Helmin-Basa, Jacek Michalkiewicz, Maciej Gagat, Alina Grzanka, Malgorzata Frontczak-Baniewicz, Agata Magdalena Gastecka, Tomasz Kloskowski, Maciej Nowacki, Camillo Ricordi, Tomasz Drewa
A variety of tissue engineering techniques utilizing different cells and biomaterials are currently being explored to construct urinary bladder walls de novo, but so far no approach is clearly superior. The aim of this study was to determine whether mesenchymal stem cells (MSCs) isolated from different sources, (bone marrow [BM-MSCs] and adipose tissue [ADSCs]), differ in their potential to regenerate smooth muscles in tissue-engineered urinary bladders and to determine an optimal number of MSCs for urinary bladder smooth muscle regeneration...
November 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29336130/comparison-of-three-types-of-mesenchymal-stem-cells-bone-marrow-adipose-tissue-and-umbilical-cord-derived-as-potential-sources-for-inner-ear-regeneration
#5
REVIEW
Mohammad-Reza Mahmoudian-Sani, Ameneh Mehri-Ghahfarrokhi, Morteza Hashemzadeh-Chaleshtori, Masoud Saidijam, Mohammad-Saeid Jami
In this review, we compared the potential of mesenchymal stem cells derived from bone marrow, adipose tissue and umbilical cord as suitable sources for regeneration of inner ear hair cells and auditory neurons. Our intensive literature search indicates that stem cells in some of adult mammalian tissues, such as bone marrow, can generate new cells under physiological and pathological conditions. Among various types of stem cells, bone marrow-derived mesenchymal stem cells are one of the most promising candidates for cell replacement therapy...
December 1, 2017: International Tinnitus Journal
https://www.readbyqxmd.com/read/29336053/specific-modulation-of-vertebral-marrow-adipose-tissue-by-physical-activity
#6
Daniel L Belavy, Matthew J Quittner, Nicola D Ridgers, Adnan Shiekh, Timo Rantalainen, Guy Trudel
Marrow adipose tissue (MAT) accumulation with normal aging impacts the bone, hemopoiesis, and metabolic pathways. We investigated whether exercise was associated with lower MAT, as measured by vertebral marrow fat fraction (VFF) on magnetic resonance imaging. A total of 101 healthy individuals (54 females) aged 25 to 35 years without spine or bone disease but with distinct exercise histories were studied. Long-distance runners (67 km/wk, n = 25) exhibited lower mean lumbar VFF (27.9% [8.6%] versus 33...
January 16, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29333574/unique-metabolic-activation-of-adipose-tissue-macrophages-in-obesity-promotes-inflammatory-responses
#7
Lily Boutens, Guido J Hooiveld, Sourabh Dhingra, Robert A Cramer, Mihai G Netea, Rinke Stienstra
AIMS/HYPOTHESIS: Recent studies have identified intracellular metabolism as a fundamental determinant of macrophage function. In obesity, proinflammatory macrophages accumulate in adipose tissue and trigger chronic low-grade inflammation, that promotes the development of systemic insulin resistance, yet changes in their intracellular energy metabolism are currently unknown. We therefore set out to study metabolic signatures of adipose tissue macrophages (ATMs) in lean and obese conditions...
January 14, 2018: Diabetologia
https://www.readbyqxmd.com/read/29331301/marrow-adipose-tissue-imaging-in-humans
#8
Vibha Singhal, Miriam A Bredella
Bone strength is affected not only by bone mineral density (BMD) and bone microarchitecture but also its microenvironment. Recent studies have focused on the role of marrow adipose tissue (MAT) in the pathogenesis of bone loss. Osteoblasts and adipocytes arise from a common mesenchymal stem cell within bone marrow and many osteoporotic states, including aging, medication use, immobility, over - and undernutrition are associated with increased marrow adiposity. Advancements in imaging technology allow the non-invasive quantification of MAT...
January 10, 2018: Bone
https://www.readbyqxmd.com/read/29324934/stem-cells-therapy-the-future-in-the-management-of-systemic-sclerosis-a-case-report
#9
Jung In Song, Silvanie Volz, Maria Eirini Liodaki, Peter Mailänder, Konstantinos Kalousis
OBJECTIVE: Systemic sclerosis (SSc) is a connective tissue disorder of unknown etiology, with heterogeneous clinical manifestations and chronic and often progressive course. The diffuse cutaneous form of SSc (dcSSc) is characterized by thickening of the skin (scleroderma) and distinctive involvement of multiple internal organs. Patients with limited cutaneous SSc (lcSSc) generally have long-standing Raynaud's phenomenon before other manifestations of SSc appear. Over the last decade the Interest of adipose-derived cell therapy in regenerative medicine has increased continuously...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29323335/tanshinol-alleviates-impaired-bone-formation-by-inhibiting-adipogenesis-via-klf15-ppar%C3%AE-2-signaling-in-gio-rats
#10
Ya-Jun Yang, Zhu Zhu, Dong-Tao Wang, Xin-le Zhang, Yu-Yu Liu, Wen-Xiu Lai, Yu-Lin Mo, Jin Li, Yan-Long Liang, Zhuo-Qing Hu, Yong-Jie Yu, Liao Cui
Glucocorticoid (GC)-induced osteoporosis (GIO) is characterized by impaired bone formation, which can be alleviated by tanshinol, an aqueous polyphenol isolated from Salvia miltiorrhiza Bunge. In this study we investigated the molecular mechanisms underlying GC-induced modulation of osteogenesis as well as the possibility of using tanshinol to interfere with GIO. Female SD rats aged 4 months were orally administered distilled water (Con), prednisone (GC, 5 mg·kg-1·d-1), GC plus tanshinol (Tan, 16 mg·kg-1·d-1) or GC plus resveratrol (Res, 5 mg·kg-1·d-1) for 14 weeks...
January 11, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29321630/engineered-mesenchymal-stem-cell-sheets-patches-prevents-postoperative-pancreatic-leakage-in-a-rat-model
#11
Seong-Ryong Kim, Hye-Jin Yi, Yu Na Lee, Ji Yoon Park, Robert M Hoffman, Teruo Okano, In Kyong Shim, Song Cheol Kim
Post-operative pancreatic fistula (POPF) following pancreatic resection is a life-threatening surgical complication. Cell sheets were prepared and harvested using temperature-responsive culture dishes and transplanted as patches to seal POPF. Two different mesenchymal stem cell (MSC) sheets were compared in terms of the preventative ability for pancreatic leakage in a rat model. Both rat adipose-derived stem cell (rADSC) and bone marrow-derived stem cell (rBMSC) sheets were transplanted. Those rADSC and rBMSC sheets are created without enzymes and thus maintained their cell-cell junctions and adhesion proteins with intact fibronectin on the basal side, as well as characteristics of MSCs...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321172/modest-decreases-in-endogenous-all-trans-retinoic-acid-produced-by-a-mouse-rdh10-heterozygote-provoke-major-abnormalities-in-adipogenesis-and-lipid-metabolism
#12
Di Yang, Marta G Vuckovic, Carolyn P Smullin, Myeongcheol Kim, Christabel Pui-See Lo, Emily Devericks, Hong Sik Yoo, Milena Tintcheva, Yinghua Deng, Joseph L Napoli
Pharmacological dosing of all-trans-retinoic acid (atRA) controls adiposity in rodents by inhibiting adipogenesis and inducing fatty acid oxidation. Retinol dehydrogenases (Rdh) catalyze the first reaction that activate retinol into atRA. This study examined post-natal contributions of Rdh10 to atRA biosynthesis and physiological functions of endogenous atRA. Embryonic fibroblasts from Rdh10 heterozygote hypomorphs or with a total Rdh10 knockout exhibit decreased atRA biosynthesis and escalated adipogenesis...
January 10, 2018: Diabetes
https://www.readbyqxmd.com/read/29320711/anatomical-physiological-and-functional-diversity-of-adipose-tissue
#13
REVIEW
Rachel K Zwick, Christian F Guerrero-Juarez, Valerie Horsley, Maksim V Plikus
Adipose tissue depots can exist in close association with other organs, where they assume diverse, often non-traditional functions. In stem cell-rich skin, bone marrow, and mammary glands, adipocytes signal to and modulate organ regeneration and remodeling. Skin adipocytes and their progenitors signal to hair follicles, promoting epithelial stem cell quiescence and activation, respectively. Hair follicles signal back to adipocyte progenitors, inducing their expansion and regeneration, as in skin scars. In mammary glands and heart, adipocytes supply lipids to neighboring cells for nutritional and metabolic functions, respectively...
January 9, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29311024/-stem-cells-searching-predisposition-to-cardiac-commitment-by-surface-markers-expression
#14
Luis A Lara-Martínez, Ingrid Gutiérrez-Villegas, Victor M Arenas-Luna, Salomón Hernández-Gutierrez
It is well-known that cardiovascular diseases are the leading cause of death worldwide, and represent an important economic burden to health systems. In an attempt to solve this problem, stem cell therapy has emerged as a therapeutic option. Within the last 20 years, a great variety of stem cells have been used in different myocardial infarction models. Up until now, the use of cardiac stem cells (CSCs) has seemed to be the best option, but the inaccessibility and scarcity of these cells make their use unreliable...
January 5, 2018: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/29306094/simultaneous-three-dimensional-visualization-of-mineralized-and-soft-skeletal-tissues-by-a-novel-microct-contrast-agent-with-polyoxometalate-structure
#15
Greet Kerckhofs, Steve Stegen, Nick van Gastel, Annelies Sap, Guillaume Falgayrac, Guillaume Penel, Marjorie Durand, Frank P Luyten, Liesbet Geris, Katleen Vandamme, Tatjana Parac-Vogt, Geert Carmeliet
Biological tissues have a complex and heterogeneous 3D structure, which is only partially revealed by standard histomorphometry in 2D. We here present a novel chemical compound for contrast-enhanced microfocus computed tomography (CE-CT), a Hafnium-based Wells-Dawson polyoxometalate (Hf-POM), which allows simultaneous 3D visualization of mineralized and non-mineralized skeletal tissues, such as mineralized bone and bone marrow vasculature and adipocytes. We validated the novel contrast agent, which has a neutral pH in solution, by detailed comparison with (immuno)histology on murine long bones as blueprint, and showed that Hf-POM-based CE-CT can be used for virtual 3D histology...
December 22, 2017: Biomaterials
https://www.readbyqxmd.com/read/29299496/effects-of-human-adipose-derived-stem-cells-and-platelet-rich-plasma-on-healing-response-of-canine-alveolar-surgical-bone-defects
#16
Reihaneh Shafieian, Maryam Moghaddam Matin, Amin Rahpeyma, Alireza Fazel, Hamideh Salari Sedigh, Ariane Sadr Nabavi, Halimeh Hassanzadeh, Alireza Ebrahimzadeh-Bideskan
Background: Due to the known disadvantages of autologous bone grafting, tissue engineering approaches have become an attractive method for ridge augmentation in dentistry. To the best of our knowledge, this is the first study conducted to evaluate the potential therapeutic capacity of PRP-assisted hADSCs seeded on HA/TCP granules on regenerative healing response of canine alveolar surgical bone defects. This could offer a great advantage to alternative approaches of bone tissue healing-induced therapies at clinically chair-side procedures...
November 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29297135/stem-cell-factor-supports-migration-in-canine-mesenchymal-stem-cells
#17
Nathaly Enciso, Luciana L K Ostronoff, Guillermo Mejías, Leticia G León, María Luisa Fermín, Elena Merino, Cristina Fragio, Luis Avedillo, Concepción Tejero
Adult Mesenchymal Stem Cells (MSC) are cells that can be defined as multipotent cells able to differentiate into diverse lineages, under appropriate conditions. These cells have been widely used in regenerative medicine, both in preclinical and clinical settings. Initially discovered in bone marrow, MSC can now be isolated from a wide spectrum of adult and foetal tissues. Studies to evaluate the therapeutic potential of these cells are based on their ability to arrive to damaged tissues. In this paper we have done a comparative study analyzing proliferation, surface markers and OCT4, SOX9, RUNX2, PPARG genes expression in MSC cells from Bone marrow (BMMSC) and Adipose tissue (ASC)...
January 3, 2018: Veterinary Research Communications
https://www.readbyqxmd.com/read/29296822/bone-marrow-sites-differently-imprint-dormancy-and-chemoresistance-to-t-cell-acute-lymphoblastic-leukemia
#18
Xavier Cahu, Julien Calvo, Sandrine Poglio, Nais Prade, Benoit Colsch, Marie-Laure Arcangeli, Thierry Leblanc, Arnaud Petit, Frederic Baleydier, Andre Baruchel, Judith Landman-Parker, Christophe Junot, Jerome Larghero, Paola Ballerini, Eric Delabesse, Benjamin Uzan, Francoise Pflumio
T-cell acute lymphoblastic leukemia (T-ALL) expands in various bone marrow (BM) sites of the body. We investigated whether different BM sites could differently modulate T-ALL propagation using in vivo animal models. We observed that mouse and human T-ALL develop slowly in the BM of tail vertebrae compared with the BM from thorax vertebrae. T-ALL recovered from tail BM displays lower cell-surface marker expression and decreased metabolism and cell-cycle progression, demonstrating a dormancy phenotype. Functionally, tail-derived T-ALL exhibit a deficient short-term ex vivo growth and a delayed in vivo propagation...
September 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29285145/comparison-of-bone-marrow-vs-adipose-tissue-derived-mesenchymal-stem-cells-for-attenuating-liver-fibrosis
#19
Tianpao Hao, Jingfeng Chen, Shaoce Zhi, Qiyu Zhang, Gang Chen, Fuxiang Yu
Mesenchymal stem cell (MSC) therapy has emerged as a potential novel method of treating liver fibrosis. To date, bone marrow-derived MSCs (BM-MSCs) and adipose tissue-derived MSCs (AD-MSCs) have not been analyzed with respect to their ability to combat liver fibrosis. The present study aimed to compare the capabilities of BM-MSCs and AD-MSCs in the treatment of liver fibrosis. BM-MSCs and AD-MSCs were taken from male Sprague-Dawley rats and cultured. Hepatic stellate cells (HSCs) were co-cultured with either BM-MSCs or AD-MSCs, and the effects of BM-MSCs or AD-MSCs on the proliferation, activation and apoptosis of HSCs were determined...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29280310/osteogenic-stimulation-of-human-adipose-derived-mesenchymal-stem-cells-using-a-fungal-metabolite-that-suppresses-the-polycomb-group-protein-ezh2
#20
Rebekah M Samsonraj, Amel Dudakovic, Bushra Manzar, Buer Sen, Allan B Dietz, Simon M Cool, Janet Rubin, Andre J van Wijnen
Strategies for musculoskeletal tissue regeneration apply adult mesenchymal stem/stromal cells (MSCs) that can be sourced from bone marrow- and lipo-aspirates. Adipose tissue-derived MSCs are more easily harvested in the large quantities required for skeletal tissue-engineering approaches, but are generally considered to be less osteogenic than bone marrow MSCs. Therefore, we tested a new molecular strategy to improve their osteogenic lineage-differentiation potential using the fungal metabolite cytochalasin D (CytoD)...
December 27, 2017: Stem Cells Translational Medicine
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