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Bone marrow stromal cells

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https://www.readbyqxmd.com/read/29784000/the-homing-of-bone-marrow-stem-cells-is-differentially-activated-in-ischemic-and-valvular-heart-diseases-and-influenced-by-beta-blockers
#1
Melissa Kristocheck, Lucinara D Dias, Carine Ghem, Bruna Eibel, Renato A K Kalil, Melissa M Markoski
BACKGROUND: Cell homing is the mechanism by which an injury releases signaling molecules that cause recruitment, proliferation, migration and differentiation of progenitor cells. Stromal derived factor-1 (SDF-1) and its receptor CXCR4 are key molecules involved in homing and little is known about their activation in cardiopathies. Here, we assessed the homing activation status of bone marrow cells (BMC) concerning the SDF-1 and CXCR4 expression in ischemic (IHD) and valvular (VHD) heart diseases...
May 21, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29783118/placenta-derived-mesenchymal-stromal-cells-and-their-exosomes-exert-therapeutic-effects-in-duchenne-muscular-dystrophy
#2
Ariel Bier, Peter Berenstein, Noam Kronfeld, Daria Morgoulis, Amotz Ziv-Av, Hodaya Goldstein, Gila Kazimirsky, Simona Cazacu, Rinat Meir, Rachela Popovtzer, Amir Dori, Chaya Brodie
Duchenne muscular dystrophy (DMD) is a degenerative lethal, X-linked disease of skeletal and cardiac muscles caused by mutations in the dystrophin gene. Cell therapy using different cell types, including mesenchymal stromal cells (MSCs), has been considered as a potential approach for the treatment of DMD. MSCs can be obtained from autologous sources such as bone marrow and adipose tissues or from allogeneic placenta and umbilical cord. The safety and therapeutic impact of these cells has been demonstrated in pre-clinical and clinical studies and their functions are attributed to paracrine effects that are mediated by secreted cytokines and extracellular vesicles...
May 3, 2018: Biomaterials
https://www.readbyqxmd.com/read/29782940/defining-osteoblast-and-adipocyte-lineages-in-the-bone-marrow
#3
J L Pierce, D L Begun, J J Westendorf, M E McGee-Lawrence
Bone is a complex endocrine organ that facilitates structural support, protection to vital organs, sites for hematopoiesis, and calcium homeostasis. The bone marrow microenvironment is a heterogeneous niche consisting of multipotent musculoskeletal and hematopoietic progenitors and their derivative terminal cell types. Amongst these progenitors, bone marrow mesenchymal stem/stromal cells (BMSCs) may differentiate into osteogenic, adipogenic, myogenic, and chondrogenic lineages to support musculoskeletal development as well as tissue homeostasis, regeneration and repair during adulthood...
May 18, 2018: Bone
https://www.readbyqxmd.com/read/29782852/atp6v1h-regulates-the-growth-and-differentiation-of-bone-marrow-stromal-cells
#4
Lin Li, Shaoqing Yang, Yanli Zhang, Dongrui Ji, Zuolin Jin, Xiaohong Duan
ATP6V1H encodes subunit H of vacuolar ATPase (V-ATPase) and may regulate osteoclastic function. The deficiency of ATP6V1H caused bone loss in human, mouse and zebrafish. In this report, we identified the mechanisms by which ATP6V1H regulates proliferation and differentiation of bone marrow stromal cells (BMSCs). We found that ATP6V1H was expressed in BMSCs, andAtp6v1h+/- BMSCs exhibited the lower proliferation rate, cell cycle arrest and reduced osteogenic differentiation capacity, as well as the increased adipogenic potentials...
May 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29777577/autologous-bone-marrow-mesenchymal-stem-cells-improve-the-quality-and-stability-of-vascularized-flap-surgery-of-irradiated-skin-in-pigs
#5
Christine Linard, Michel Brachet, Carine Strup-Perrot, Bruno L'homme, Elodie Busson, Claire Squiban, Valerie Holler, Michel Bonneau, Jean-Jacques Lataillade, Eric Bey, Marc Benderitter
Cutaneous radiation syndrome has severe long-term health consequences. Because it causes an unpredictable course of inflammatory waves, conventional surgical treatment is ineffective and often leads to a fibronecrotic process. Data about the long-term stability of healed wounds, with neither inflammation nor resumption of fibrosis, are lacking. In this study, we investigated the effect of injections of local autologous bone marrow-derived mesenchymal stromal cells (BM-MSCs), combined with plastic surgery for skin necrosis, in a large-animal model...
May 18, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29776486/refractory-knee-osteoarthritis-adipose-derived-stromal-cells-versus-bone-marrow-aspiration-concentrate
#6
EDITORIAL
Gerard A Malanga, Samuel Dona, Joanne Borg-Stein, Michael Auriemma, Jaspal R Singh
No abstract text is available yet for this article.
May 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29775645/mesenchymal-stromal-cells-induce-a-permissive-state-in-the-bone-marrow-that-enhances-g-csf-induced-hematopoietic-stem-cell-mobilization-in-mice
#7
Evert-Jan F M de Kruijf, Rob Zuijderduijn, Marjolein C Stip, Willem E Fibbe, Melissa van Pel
Mesenchymal stromal cells (MSC) support hematopoietic stem cells (HSC) in vivo and enhance HSC engraftment and hematopoietic recovery upon co-transplantation with HSC. These data have led to the hypothesis that MSC may impact the HSC niche, leading to changes in HSC retention and trafficking. We studied the effect of MSC administration on the HSC compartment in the bone marrow (BM) in mice. Following injection of MSC, HSC numbers in the BM were decreased coinciding with an increased cell cycle activity compared to PBS-injected controls...
May 15, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29775636/epithelial-proliferation-in-inflammatory-skin-disease-is-regulated-by-ttc7-in-fibroblasts-and-lymphocytes
#8
Ursina Nüesch, Andrea A Mauracher, Lennart Opitz, Benjamin Volkmer, Katarzyna Michalak-Mićka, Jivko Kamarachev, Tom Hartwig, Ernst Reichmann, Burkhard Becher, Stefano Vavassori, Jana Pachlopnik Schmid
BACKGROUND: Mutations in tetratricopeptide repeat domain 7A (TTC7A) and its mouse orthologue Ttc7 result in a multisystemic disease, mostly affecting epithelial barriers and the immune system. Despite successful hematopoietic stem cell transplantation, ongoing progression of gastrointestinal manifestations can be life-threatening in TTC7A-deficient patients. OBJECTIVE: To identify whether TTC7A mutations dysregulate epithelial cells only, or whether a cell-intrinsic defect in lymphocytes or other cells contributes to disease manifestations...
May 15, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29774441/bst2-promotes-cell-proliferation-migration-and-induces-nf-%C3%AE%C2%BAb-activation-in-gastric-cancer
#9
Weiyu Liu, Yong Cao, Yadi Guan, Changqing Zheng
OBJECTIVES: To investigate the functional roles of bone marrow stromal cell antigen 2 (BST2) in gastric cancer (GC) cells and its implications in the development of GC patients. RESULTS: BST2 was frequently overexpressed in GC tissues compared with the adjacent non-tumorous tissues, and high BST2 expression was correlated with tumor stage and lymphatic metastasis. Furthermore, in vitro experiments demonstrated that knockdown of BST2 by siRNA inhibited cell proliferation, induced apoptosis and repressed cell motility in GC cells...
May 17, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29773599/tgf%C3%AE-1-mediated-functional-inhibition-of-mesenchymal-stromal-cells-in-myelodysplastic-syndromes-and-acute-myeloid-leukemia
#10
Stefanie Geyh, Manuel Rodríguez-Paredes, Paul Jäger, Annemarie Koch, Felix Bormann, Julian Gutekunst, Christoph Zilkens, Ulrich Germing, Guido Kobbe, Frank Lyko, Rainer Haas, Thomas Schroeder
Mesenchymal stromal cells are involved in the pathogenesis of myelodysplastic syndromes and acute myeloid leukemia, but the underlying mechanisms are incompletely understood. To further characterize the pathological phenotype we performed RNA sequencing of mesenchymal stromal cells from patients with myelodysplastic syndromes and acute myeloid leukemia revealing a specific molecular signature of genes commonly deregulated in myelodysplastic syndromes and acute myeloid leukemia. Pathway analysis showed a strong enrichment of genes related to osteogenesis, senescence, inflammation and inhibitory cytokines thereby reflecting the structural and functional deficits of mesenchymal stromal cells in myelodysplastic syndromes and acute myeloid leukemia on a molecular level...
May 17, 2018: Haematologica
https://www.readbyqxmd.com/read/29773597/hematopoietic-stem-cell-loss-and-hematopoietic-failure-in-severe-aplastic-anemia-is-driven-by-macrophages-and-aberrant-podoplanin-expression
#11
Amanda McCabe, Julianne N P Smith, Angelica Costello, Jackson Maloney, Divya Katikaneni, Katherine C MacNamara
Severe aplastic anemia results from profound hematopoietic stem cell loss. T cells and interferon gamma have long been associated with severe aplastic anemia, yet the underlying mechanisms driving hematopoietic stem cell loss remain unknown. Using a mouse model of severe aplastic anemia, we demonstrate that interferon gamma-dependent hematopoietic stem cell loss required macrophages. Interferon gamma was necessary for bone marrow macrophage persistence, despite loss of other myeloid cells and hematopoietic stem cells...
May 17, 2018: Haematologica
https://www.readbyqxmd.com/read/29773592/investigating-chemoresistance-to-improve-sensitivity-of-childhood-t-cell-acute-lymphoblastic-leukemia-to-parthenolide
#12
Benjamin C Ede, Rafal R Asmaro, John P Moppett, Paraskevi Diamanti, Allison Blair
Current therapies for childhood T cell acute lymphoblastic leukemia have increased survival rates to above 85% in developed countries. Unfortunately, some patients fail to respond to therapy and many suffer from serious side effects, highlighting the need to investigate other agents to treat this disease. Parthenolide, a nuclear factor kappa B inhibitor and reactive oxygen species inducer, has been shown to have excellent anti-cancer activity in pediatric leukemia xenografts, with minimal effects on normal hemopoietic cells...
May 17, 2018: Haematologica
https://www.readbyqxmd.com/read/29772235/autophagy-mediates-enhancement-of-proangiogenic-activity-by-hypoxia-in-mesenchymal-stromal-stem-cells
#13
Seul-Gi Lee, Young Ae Joe
Mesenchymal stromal/stem cells (MSCs) have been promising source for regenerative cell therapy in ischemic diseases. To improve efficacy of MSC therapy, various priming methods have been developed, and hypoxic priming has been reported to enhance therapeutic efficacy of MSCs by increasing secretion level of growth factors and cytokines. Recently, it has been reported that bone marrow MSCs primed with hypoxic condition show an increase of autophagy. Here, we addressed whether proangiogenic activity increased by hypoxic condition is associated with autophagy...
May 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29771444/low-level-laser-irradiation-promotes-the-differentiation-of-bone-marrow-stromal-cells-into-osteoblasts-through-the-apn-wnt-%C3%AE-catenin-pathway
#14
R-F Zhang, Q Wang, A-A Zhang, J-G Xu, L-D Zhai, X-M Yang, X-T Liu
OBJECTIVE: The relationship between adiponectin (APN) pathway and Wnt pathway was explored through BMSCs, and the effect of low-level laser irradiation (LLLI) on bone marrow stromal cells (BMSCs) and its mechanism were further studied. MATERIALS AND METHODS: 3-week-old Sprague-Dawley (SD) rats were selected, and mesenchymal stem cells were separately cultured and purified. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to analyze cell proliferation...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29769706/red-algal-extracts-from-plocamium-lyngbyanum-and-ceramium-secundatum-stimulate-osteogenic-activities-in-vitro-and-bone-growth-in-zebrafish-larvae
#15
Matthew A Carson, John Nelson, M Leonor Cancela, Vincent Laizé, Paulo J Gavaia, Margaret Rae, Svenja Heesch, Eugene Verzin, Christine Maggs, Brendan F Gilmore, Susan A Clarke
Through the current trend for bioprospecting, marine organisms - particularly algae - are becoming increasingly known for their osteogenic potential. Such organisms may provide novel treatment options for osteoporosis and other musculoskeletal conditions, helping to address their large healthcare burden and the limitations of current therapies. In this study, extracts from two red algae - Plocamium lyngbyanum and Ceramium secundatum - were tested in vitro and in vivo for their osteogenic potential. In vitro, the growth of human bone marrow stromal cells (hBMSCs) was significantly greater in the presence of the extracts, particularly with P...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769543/the-cytokine-secretion-profile-of-mesenchymal-stromal-cells-is-determined-by-surface-structure-of-the-microenvironment
#16
Daniëlle G Leuning, Nick R M Beijer, Nadia A du Fossé, Steven Vermeulen, Ellen Lievers, Cees van Kooten, Ton J Rabelink, Jan de Boer
Mesenchymal stromal cells (MSC) secrete factors that contribute to organ homeostasis and repair in a tissue specific manner. For instance, kidney perivascular mesenchymal stromal cells (kPSCs) can facilitate renal epithelial repair through secretion of hepatocyte growth factor (HGF) while the secretome of bone marrow MSCs gives rise to immunosuppression. Stromal cells function in a complex 3-dimensional (3D) connective tissue architecture that induces conformational adaptation. Here we tested the hypothesis that surface topography and associated cell adaptations dictate stromal cell function through tuning of the cytokines released...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29767474/mesenchymal-stromal-cells-from-shwachman-diamond-syndrome-patients-fail-to-recreate-a-bone-marrow-niche-in-vivo-and-exhibit-impaired-angiogenesis
#17
Donatella Bardelli, Erica Dander, Cristina Bugarin, Claudia Cappuzzello, Alice Pievani, Grazia Fazio, Paolo Pierani, Paola Corti, Piero Farruggia, Carlo Dufour, Simone Cesaro, Marco Cipolli, Andrea Biondi, Giovanna D'Amico
Shwachman-Diamond syndrome (SDS) is a rare multi-organ recessive disease mainly characterised by pancreatic insufficiency, skeletal defects, short stature and bone marrow failure (BMF). As in many other BMF syndromes, SDS patients are predisposed to develop a number of haematopoietic malignancies, particularly myelodysplastic syndrome and acute myeloid leukaemia. However, the mechanism of cancer predisposition in SDS patients is only partially understood. In light of the emerging role of mesenchymal stromal cells (MSCs) in the regulation of bone marrow homeostasis, we assessed the ability of MSCs derived from SDS patients (SDS-MSCs) to recreate a functional bone marrow niche, taking advantage of a murine heterotopic MSC transplant model...
May 16, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29767463/mechanical-and-biological-properties-of-a-biodegradable-mg-zn-ca-porous-alloy
#18
Yong-Qiang Zhang, Yang Li, Huan Liu, Jing Bai, Ni-Rong Bao, Yue Zhang, Peng He, Jian-Ning Zhao, Li Tao, Feng Xue, Guang-Xin Zhou, Gen-Tao Fan
OBJECTIVES: As promising alternative to current metallic biomaterials, the porous Mg scaffold with a 3-D open-pore framework has drawn much attention in recent years due to its suitable biodegradation, biocompatibility, and mechanical properties for human bones. This experiment's aim is to study the mechanical properties, biosafety, and osteogenesis of porous Mg-Zn alloy. METHODS: A porous Mg-2Zn-0.3Ca (wt%) alloy was successfully prepared by infiltration casting, and the size of NaCl particles was detected by a laser particle size analyzer...
May 16, 2018: Orthopaedic Surgery
https://www.readbyqxmd.com/read/29766760/osteoinduction-by-ex-vivo-bone-morphogenetic-protein-gene-delivery-is-independent-of-cell-type
#19
Loek Loozen, Moyo C Kruyt, Angela Vandersteen, Angela H M Kragten, Michiel Croes, F Cumhur Oner, Jacqueline Alblas
Ex vivo non-viral gene delivery of bone-inductive factors has the potential to heal bone defects. Due to their inherent role in new bone formation, multipotent stromal cells (MSCs) have been studied as the primary target cell for gene delivery in a preclinical setting. The relative contribution of autocrine and paracrine mechanisms, and the need of osteogenic cells, remains unclear. This study investigates the contribution of MSCs as producer of transgenic BMPs and to what extent the seeded MSCs participate in actual osteogenesis...
May 16, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29766671/point-of-care-treatment-of-focal-cartilage-defects-with-selected-chondrogenic-mesenchymal-stromal-cells-an-in-vitro-proof-of-concept-study
#20
Oliver Petters, Christian Schmidt, Christian Thuemmler, Frank Peinemann, Matthias Zscharnack, Jeremy S Somerson, Ronny M Schulz
Due to the poor self-healing capacities of cartilage, innovative approaches are a major clinical need. The use of in vitro expanded MSCs in a two-stage approach is accompanied by cost, time and personnel-intensive GMP production. A one-stage intra-operative procedure could overcome these drawbacks. The aim was to prove the feasibility of a point-of-care concept for the treatment of cartilage lesions using defined MSC subpopulations in a collagen hydrogel without prior MSC monolayer expansion. We tested four single marker candidates (MSCA-1, W4A5, CD146, CD271) for their effectiveness of separating colony-forming units of ovine MSCs via magnetic cell separation...
May 15, 2018: Journal of Tissue Engineering and Regenerative Medicine
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