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https://www.readbyqxmd.com/read/28636235/stem-cell-based-tooth-and-periodontal-regeneration
#1
Lei Hu, Yi Liu, Songlin Wang
Currently regeneration of tooth and periodontal damage still remains great challenge. Stem cell-based tissue engineering raised novel therapeutic strategies for tooth and periodontal repair. Stem cells for tooth and periodontal regeneration include dental pulp stem cells (DPSCs), periodontal ligament stem cells (PDLSCs), stem cells from the dental apical papilla (SCAPs), and stem cells from human exfoliated deciduous teeth (SHEDs), dental follicle stem cells (DFSCs), dental epithelial stem cells (DESCs), bone marrow mesenchymal stem cells (BMMSCs), adipose-derived stem cells (ADSCs), embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs)...
June 21, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28628602/procoagulant-activity-of-human-mesenchymal-stem-cells
#2
Barbara A Christy, Maryanne C Herzig, Robbie K Montgomery, Christopher Delavan, James A Bynum, Kristin M Reddoch, Andrew P Cap
BACKGROUND: Allogeneic mesenchymal stem cells (MSCs) show great potential for the treatment of military and civilian trauma based on their reduced immunogenicity and ability to modulate inflammation and immune function in the recipient. Although generally considered to be safe, MSCs express tissue factor (TF), a potent activator of coagulation. In the current study, we evaluated multiple MSC populations for tissue factor expression and procoagulant activity to characterize safety considerations for systemic use of MSCs in trauma patients who may have altered coagulation homeostasis...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28622604/tissue-engineered-hypertrophic-chondrocyte-grafts-enhanced-long-bone-repair
#3
Jonathan Bernhard, James Ferguson, Bernhard Rieder, Patrick Heimel, Thomas Nau, Stefan Tangl, Heinz Redl, Gordana Vunjak-Novakovic
Bone has innate ability to regenerate following injury. However, large and complex fractures exceed bone's natural repair capacity and result in non-unions, requiring external intervention to facilitate regeneration. One potential treatment solution, tissue-engineered bone grafts, has been dominated by recapitulating intramembranous ossification (bone formation by osteoblasts), although most serious bone injuries heal by endochondral ossification (bone formation by remodeling of hypertrophic cartilaginous anlage)...
September 2017: Biomaterials
https://www.readbyqxmd.com/read/28619045/human-adipose-derived-mesenchymal-stem-cells-alleviate-obliterative-bronchiolitis-in-a-murine-model-via-ido
#4
Guoping Zheng, Guanguan Qiu, Menghua Ge, Jianping He, Lanfang Huang, Ping Chen, Wei Wang, Qi Xu, Yaoqin Hu, Qiang Shu, Jianguo Xu
BACKGROUND: Long-term survival of lung transplantation is hindered by the development of obliterative bronchiolitis (OB). Adipose-derived stem cells (ASCs) were documented to have more potent immunosuppressive ability than mesenchymal stem cells (MSCs) from bone marrow and placenta. The goal of our study is to evaluate the effect of repeated administration of ASCs on OB and the involvement of indoleamine 2,3-dioxygenase (IDO) mediating the protective effect of ASCs in a heterotopic tracheal transplantation (HTT) model...
June 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28598385/the-roles-of-long-non-protein-coding-rnas-in-osteo-adipogenic-lineage-commitment
#5
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/28595566/a-systemic-review-of-the-sources-of-adult-mesenchymal-stem-cells-and-their-suitability-in-musculoskeletal-applications
#6
Rhiannon Nancarrow-Lei, Pouya Mafi, Reza Mafi, Wasim Khan
Background: Adult mesenchymal stem cells (MSCs) were first isolated from bone marrow by Friedenstein in 1976. These cells were clonogenic, non-haematopoietic, and able to replicate extensively in vitro. The fields of regenerative medicine and tissue engineering have grown dramatically since their inception. In the decades since, MSCs have been identified from mesoderm-, endoderm- and ectoderm-derived tissues. In light of our ageing population, the need for effective cell-based therapies for tissue repair and regeneration is ever-expanding...
June 8, 2017: Current Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28585212/lipotoxicity-related-hematological-disorders-in-obesity
#7
Ibrahim Celalettin Haznedaroglu, Umit Yavuz Malkan
Lipotoxicity can mediate endothelial dysfunction in obesity. Altered endothelial cell phenotype during the pathobiological course of the lipotoxicity may lead to the hemostatic abnormalities, which is a hallmark of several hematological disorders. Impaired hemostasis could also be directly related to the numerous metabolic diseases such as hypertension, diabetes and atherosclerosis. On the other hand, local hematopoietic bone marrow (BM) renin-angiotensin system (RAS) contributes to the development of atherosclerosis via acting on the lipotoxicity processes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28584815/from-human-mesenchymal-stem-cells-to-insulin-producing-cells-comparison-between-bone-marrow-and-adipose-tissue-derived-cells
#8
Mahmoud M Gabr, Mahmoud M Zakaria, Ayman F Refaie, Engy A Abdel-Rahman, Asmaa M Reda, Sameh S Ali, Sherry M Khater, Sylvia A Ashamallah, Amani M Ismail, Hossam El-Din A Ismail, Nagwa El-Badri, Mohamed A Ghoneim
The aim of this study is to compare human bone marrow-derived mesenchymal stem cells (BM-MSCs) and adipose tissue-derived mesenchymal stem cells (AT-MSCs), for their differentiation potentials to form insulin-producing cells. BM-MSCs were obtained during elective orthotopic surgery and AT-MSCs from fatty aspirates during elective cosmetics procedures. Following their expansion, cells were characterized by phenotyping, trilineage differentiation ability, and basal gene expression of pluripotency genes and for their metabolic characteristics...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28580233/connecting-bone-and-fat-the-potential-role-for-sclerostin
#9
Heather Fairfield, Clifford J Rosen, Michaela R Reagan
Sclerostin (SOST), a protein secreted from mature osteocytes in response to mechanical unloading and other stimuli, inhibits the osteogenic Wnt/β-catenin pathway in mesenchymal stem cells (MSCs) impeding their ability to differentiate into mineralizing osteoblasts. PURPOSE: This review summarizes the crosstalk between adipose tissue and bone. It also reviews the origin, regulation, and role of SOST in osteogenesis and brings attention to an emerging role of this protein in the regulation of adipogenesis...
June 2017: Current Molecular Biology Reports
https://www.readbyqxmd.com/read/28577302/ip6k1-reduces-mesenchymal-stem-stromal-cell-fitness-and-potentiates-high-fat-diet-induced-skeletal-involution
#10
Siddaraju V Boregowda, Sarbani Ghoshal, Cori N Booker, Veena Krishnappa, Anutosh Chakraborty, Donald G Phinney
Mesenchymal stem/stromal cells (MSCs) are the predominant source of bone and adipose tissue in adult bone marrow and play a critical role in skeletal homeostasis. Age-induced changes in bone marrow favor adipogenesis over osteogenesis leading to skeletal involution and increased marrow adiposity so pathways that prevent MSC aging are potential therapeutic targets for treating age-related bone diseases. Here, we show that inositol hexakisphosphate kinase 1 (Ip6k1) deletion in mice increases MSC yields from marrow and enhances cell growth and survival ex vivo...
June 2, 2017: Stem Cells
https://www.readbyqxmd.com/read/28575686/adipocytes-at-the-core-of-bone-function
#11
Gerald Grandl, Christian Wolfrum
Marrow adipose tissue (MAT) is a specialized adipose tissue with endocrine function found in bone marrow. In this issue of Cell Stem Cell, Ambrosi et al. (2017) identify a stem cell population in the bone marrow that can give rise to both osteogenic and adipogenic MAT precursors and is regulated by diet and aging and affects bone functionality.
June 1, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28574591/bone-marrow-adipocytes-support-haematopoietic-stem-cell-survival
#12
Domenico Mattiucci, Giulia Maurizi, Valerio Izzi, Lorenzo Cenci, Marco Ciarlantini, Stefania Mancini, Emanuela Mensà, Raffaele Pascarella, Marco Vivarelli, Attilio Olivieri, Pietro Leoni, Antonella Poloni
In bone marrow (BM), haematopoietic elements are mingled with adipocytes (BM-A), which are the most abundant stromal component in the niche. BM-A progressively increase with ageing, eventually occupying up to 50% of BM cavities. In this work, the role played by BM-A was explored by studying primary human BM-A isolated from hip surgery patients at the molecular level, through microarray analysis, and at the functional level, by assessing their relationship with primary human haematopoietic stem cells (HSC) by the long-term culture initiating cell (LTC-IC) assay...
June 2, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28573141/c-kit-positive-adipose-tissue-derived-mesenchymal-stem-cells-promote-the-growth-and-angiogenesis-of-breast-cancer
#13
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/28571551/application-of-bone-marrow-stem-cell-based-therapy-in-bone-loss-diseases
#14
Nan Xiao
Hematopoietic bone marrow stem cell transplantation has been regularly used in clinical practice for over 40 years. Further research indicates that bone marrow stromal cells are also stem cells that are capable of self-renewal, proliferation and differentiation. With appropriate induction, the bone marrow stromal cells can differentiate into bone, cartilage, tendon, adipose tissue and fibrous tissue, which would potentially be applied for treating bone loss diseases. This review outlines research in understanding role of bone marrow stem cells and stem cells from other origins in bone repair, and highlight the current and potential stem cell based treatment for bone loss diseases in the future...
May 31, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28553357/human-adipose-derived-stem-cells-exhibit-enhanced-proliferative-capacity-and-retain-multipotency-longer-than-donor-matched-bone-marrow-mesenchymal-stem-cells-during-expansion-in-vitro
#15
Kimberley L Burrow, Judith A Hoyland, Stephen M Richardson
Bone marrow-derived mesenchymal stem cells (MSCs) and adipose-derived multipotent/mesenchymal stem cells (ASCs) have been proposed as the ideal cell types for a range of musculoskeletal tissue engineering and regenerative medicine therapies. However, extensive in vitro expansion is required to generate sufficient cells for clinical application and previous studies have demonstrated differences in the proliferative capacity and the impact of expansion on differentiation capacity of both MSCs and ASCs. Significantly, these studies routinely use cells from different donors, making direct comparisons difficult...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28526089/adipose-derived-mesenchymal-stem-cells-from-liposuction-and-resected-fat-are-feasible-sources-for-regenerative-medicine
#16
Sandra Schneider, Marina Unger, Martijn van Griensven, Elizabeth R Balmayor
BACKGROUND: The use of mesenchymal stem cells (MSCs) in research and in regenerative medicine has progressed. Bone marrow as a source has drawbacks because of subsequent morbidities. An easily accessible and valuable source is adipose tissue. This type of tissue contains a high number of MSCs, and obtaining higher quantities of tissue is more feasible. Fat tissue can be harvested using different methods such as liposuction and resection. First, a detailed isolation protocol with complete characterization is described...
May 19, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28514897/biomaterials-and-bioactive-agents-in-spinal-fusion
#17
Rui M Duarte, Pedro Varanda, Rui L Reis, Ana Rita C Duarte, Jorge Correia-Pinto
Management of degenerative spine pathologies frequently leads to the need for spinal fusion, where bone growth is induced towards stabilization of the interventioned spine. Autologous bone graft (ABG) remains the gold standard inducer, while new bone graft substitutes attempt to achieve effective de novo bone formation and solid fusion. Limited fusion outcomes have driven motivation for more sophisticated and multidisciplinary solutions, involving new biomaterials and/or biologics, through innovative delivery platforms...
May 17, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28499241/pathophysiology-mechanisms-and-applications-of-mesenchymal-stem-cells-for-the-treatment-of-spinal-cord-injury
#18
REVIEW
Pravin Shende, Muna Subedi
Spinal Cord Injury (SCI) is a serious devastating condition associated to the high chances of morbidity and mortality. It involves a primary and a secondary injury, former cause damages to both lower and upper motor neurones and disrupts sensory, motor and autonomic functions while the latter involves various stages of molecular plus cellular incidents which elaborate the original injury. In the treatment of SCI, stem cells possess a good therapeutic potential. Bone marrow, adipose tissue, placenta, amniotic fluid and umbilical cord are the good sources for mesenchymal stem cells...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28498891/adipose-tissue-depots-and-inflammation-effects-on-plasticity-and-resident-mesenchymal-stem-cell-function
#19
Lina Badimon, Judit Cubedo
Adipose tissue (AT) is a highly heterogeneous organ. Beside the heterogeneity associated to different tissue types (white, brown and "brite") and its location-related heterogeneity (subcutaneous, visceral, epicardial, and perivascular, etc), AT composition, structure and functionality is highly dependent on individual-associated factors. As such, the pro-inflammatory state associated to the presence of obesity and other cardiovascular risk factors directly affects AT metabolism. Furthermore, the adipose-derived stem cells (ASCs) that reside in the stromal vascular fraction (SVF) of AT, besides being responsible for most of the plasticity attributed to AT, is an additional source of heterogeneity...
May 11, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28485099/ectopic-bone-formation-by-aggregated-mesenchymal-stem-cells-from-bone-marrow-and-adipose-tissue-a-comparative-study
#20
Eelco M Fennema, Laurent A H Tchang, Huipin Yuan, Clemens A van Blitterswijk, Ivan Martin, Arnaud Scherberich, Jan de Boer
Tissue engineered constructs (TECs) based on spheroids of bone marrow mesenchymal stromal cells (BM-MSCs) combined with calcium phosphate (CaP) micro-particles and enveloped in a platelet-rich-plasma (PRP) hydrogel showed that aggregation of MSCs improves their ectopic bone formation potential. The stromal vascular fraction (SVF) and adipose-derived MSCs (ASCs) have been recognized as interesting MSC source for bone tissue engineering but their ectopic bone formation is limited. We investigated whether aggregation of ASCs could similarly improve ectopic bone formation by ASCs and SVF cells...
May 9, 2017: Journal of Tissue Engineering and Regenerative Medicine
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