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https://www.readbyqxmd.com/read/27934660/ezh2-deletion-in-early-mesenchyme-compromises-postnatal-bone-microarchitecture-and-structural-integrity-and-accelerates-remodeling
#1
Sarah Hemming, Dimitrios Cakouros, John Codrington, Kate Vandyke, Agneiszka Arthur, Andrew Zannettino, Stan Gronthos
In this study, we examined the functional importance of EZH2 during skeletal development and homeostasis using the conditional deletion of Ezh2 (Ezh2(fl/fl)) in early mesenchyme with the use of a Prrx-1-cre driver mouse (Ezh2(+/+)). Heterozygous (Ezh2(+/-)) newborn and 4-wk-old mice exhibited increased skeletal size, growth plate size, and weight when compared to the wild-type control (Ezh2(+/+)), whereas homozygous deletion of Ezh2 (Ezh2(-/-)) resulted in skeletal deformities, reduced skeletal size, growth plate size, and weight in newborns, and 4-wk-old mice...
December 1, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27924617/cxcl12-sdf-1-dependent-retinal-migration-of-endogenous-bone-marrow-derived-stem-cells-improves-visual-function-after-pharmacologically-induced-retinal-degeneration
#2
Volker Enzmann, Stéphanie Lecaudé, Anna Kruschinski, Axel Vater
Mobilized bone marrow-derived stem cells (BMSC) have been discussed as an alternative strategy for endogenous repair. Thereby, different approaches for BMSC mobilization have been pursued. Herein, the role of a newly discovered oligonucleotide for retinal homing and regeneration capability of BMSCs was investigated in the sodium iodate (NaIO3) model of retinal degeneration. Mobilization was achieved in GFP-chimera with NOX-A12, a CXC-motif chemokine ligand 12 (CXCL12)/stromal cell-derived factor 1 (SDF-1)-neutralizing L-aptamer...
December 6, 2016: Stem Cell Reviews
https://www.readbyqxmd.com/read/27922691/microarray-expression-profiles-of-genes-in-lung-tissues-of-rats-subjected-to-focal-cerebral-ischemia-induced-lung-injury-following-bone-marrow-derived-mesenchymal-stem-cell-transplantation
#3
Yue Hu, Liu-Lin Xiong, Piao Zhang, Ting-Hua Wang
Ischemia-induced stroke is the most common disease of the nervous system and is associated with a high mortality rate worldwide. Cerebral ischemia may lead to remote organ dysfunction, particular in the lungs, resulting in lung injury. Nowadays, bone marrow-derived mesenchymal stem cells (BMSCs) are widely studied in clinical trials as they may provide an effective solution to the treatment of neurological and cardiac diseases; however, the underlying molecular mechanisms remain unknown. In this study, a model of permanent focal cerebral ischemia-induced lung injury was successfully established and confirmed by neurological evaluation and lung injury scores...
December 6, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27917821/optimizing-cell-sourcing-for-clinical-translation-of-tissue-engineered-ears
#4
Kerry A Morrison, Benjamin P Cohen, Ope Asanbe, Xue Dong, Alice Harper, Lawrence J Bonassar, Jason A Spector
: Background . Currently, the major impediment to clinical translation of our previously described platform for the fabrication of high fidelity, patient-specific tissue engineered ears is the development of a clinically optimal cell sourcing strategy. A limited autologous auricular chondrocyte (AuC) supply in conjunction with rapid chondrocyte de-differentiation during in vitro expansion currently makes clinical translation more challenging. Mesenchymal stem cells (MSCs) offer significant promise due to their inherent chondrogenic potential, and large availability through minimally invasive procedures...
December 5, 2016: Biofabrication
https://www.readbyqxmd.com/read/27894122/b-cell-lymphoma-2-modified-bone-marrow-derived-mesenchymal-stem-cells-transplantation-for-the-treatment-of-diabetes-mellitus-induced-erectile-dysfunction-in-a-rat-model
#5
Xiang Sun, Long-Hua Luo, Liang Feng, Dong-Shui Li, Ke-Zhao Zhong
OBJECTIVE: The study aimed to explore the effects of B cell lymphoma-2 (Bcl-2)-modified bone marrow-derived mesenchymal stem cells (BMSCs) transplantation for the treatment of diabetes mellitus-induced erectile dysfunction (DMED) in a rat model. METHODS: The DMED rat model was successfully established. Thirty-six DMED rats were assigned into the Bcl-2-BMSCs, null-BMSCs, BMSCs and phosphate buffered saline (PBS) groups. Meanwhile, 9 normal rats injected with PBS were taken as the normal control group...
November 29, 2016: Urologia Internationalis
https://www.readbyqxmd.com/read/27888629/inhibition-of-bcr-signaling-using-the-syk-inhibitor-tak-659-prevents-stroma-mediated-signaling-in-chronic-lymphocytic-leukemia-cells
#6
Noelia Purroy, Júlia Carabia, Pau Abrisqueta, Leire Egia, Meritxell Aguiló, Cecilia Carpio, Carles Palacio, Marta Crespo, Francesc Bosch
Proliferation and survival of chronic lymphocytic leukemia (CLL) cells depend on microenvironmental signals coming from lymphoid organs. One of the key players involved in the crosstalk between CLL cells and the microenvironment is the B-cell receptor (BCR). Syk protein, a tyrosine kinase essential for BCR signaling, is therefore a rational candidate for targeted therapy in CLL. Against this background, we tested the efficacy of the highly specific Syk inhibitor TAK-659 in suppressing the favorable signaling derived from the microenvironment...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27885959/bone-marrow-stromal-cell-sheets-may-promote-axonal-regeneration-and-functional-recovery-with-suppression-of-glial-scar-formation-after-spinal-cord-transection-injury-in-rats
#7
Akinori Okuda, Noriko Horii-Hayashi, Takayo Sasagawa, Takamasa Shimizu, Hideki Shigematsu, Eiichiro Iwata, Yasuhiko Morimoto, Keisuke Masuda, Munehisa Koizumi, Manabu Akahane, Mayumi Nishi, Yasuhito Tanaka
OBJECTIVE Transplantation of bone marrow stromal cells (BMSCs) is a theoretical potential as a therapeutic strategy in the treatment of spinal cord injury (SCI). Although a scaffold is sometimes used for retaining transplanted cells in damaged tissue, it is also known to induce redundant immunoreactions during the degradation processes. In this study, the authors prepared cell sheets made of BMSCs, which are transplantable without a scaffold, and investigated their effects on axonal regeneration, glial scar formation, and functional recovery in a completely transected SCI model in rats...
November 25, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27877865/three-dimensional-printed-macroporous-polylactic-acid-hydroxyapatite-composite-scaffolds-for-promoting-bone-formation-in-a-critical-size-rat-calvarial-defect-model
#8
Haifeng Zhang, Xiyuan Mao, Zijing Du, Wenbo Jiang, Xiuguo Han, Danyang Zhao, Dong Han, Qingfeng Li
We have explored the applicability of printed scaffold by comparing osteogenic ability and biodegradation property of three resorbable biomaterials. A polylactic acid/hydroxyapatite (PLA/HA) composite with a pore size of 500 μm and 60% porosity was fabricated by three-dimensional printing. Three-dimensional printed PLA/HA, β-tricalcium phosphate (β-TCP) and partially demineralized bone matrix (DBM) seeded with bone marrow stromal cells (BMSCs) were evaluated by cell adhesion, proliferation, alkaline phosphatase activity and osteogenic gene expression of osteopontin (OPN) and collagen type I (COL-1)...
2016: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/27859595/recipient-bone-marrow-derived-stromal-cells-prolong-graft-survival-in-a-rat-hind-limb-allotransplantation-model
#9
Ryosuke Ikeguchi, Ryosuke Kakinoki, Souichi Ohta, Hiroki Oda, Hirofumi Yurie, Yukitoshi Kaizawa, Hiroto Mitsui, Tomoki Aoyama, Junya Toguchida, Shuichi Matsuda
BACKGROUND: Recent studies have indicated that bone marrow-derived stromal cells (BMSCs) have immunomodulatory properties that suppress the T cell responses that cause graft rejection. The purpose of this study is to evaluate the effect of recipient BMSCs intravenous infusion for immunomodulation in a rat vascularized composite allotransplantation model. METHODS: A total of nine Wistar (WIS) rats and thirty Lewis (LEW) rats were used. BMSCs were harvested from three LEW rats...
November 17, 2016: Microsurgery
https://www.readbyqxmd.com/read/27858286/hypoxic-preconditioning-augments-the-therapeutic-efficacy-of-bone-marrow-stromal-cells-in-a-rat-ischemic-stroke-model
#10
Jin Chen, Yuanyuan Yang, Lihua Shen, Wensen Ding, Xiang Chen, Erbing Wu, Kefu Cai, Guohua Wang
Transplantation of bone marrow stromal cells (BMSCs) is a promising therapy for ischemic stroke, but the poor oxygen environment in brain lesions limits the efficacy of cell-based therapies. Here, we tested whether hypoxic preconditioning (HP) could augment the efficacy of BMSC transplantation in a rat ischemic stroke model and investigated the underlying mechanism of the effect of HP. In vitro, BMSCs were divided into five passage (P0, P1, P2, P3, and P4) groups, and HP was applied to the groups by incubating the cells with 1% oxygen for 0, 4, 8, 12, and 24 h, respectively...
November 18, 2016: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/27857759/stem-cell-ophthalmology-treatment-study-scots-improvement-in-serpiginous-choroidopathy-following-autologous-bone-marrow-derived-stem-cell-treatment
#11
Jeffrey N Weiss, Susan C Benes, Steven Levy
We report results in a 77-year-old male patient with visual loss from long-standing serpiginous choroidopathy treated with bone marrow derived stem cells (BMSC) within the Stem Cell Ophthalmology Treatment Study (SCOTS). SCOTS is an Institutional Review Board approved clinical trial and the largest ophthalmology stem cell study registered at the National Institutes of Health to date (ClinicalTrials.gov Identifier: NCT01920867). Eight months after treatment by a combination of retrobulbar, subtenon, intravitreal and intravenous injection of BMSC, the patient's best corrected Snellen acuity improved from 20/80(-) to 20/60(+1) in the right eye and from 20/50(-) to 20/20(-3) in the left eye...
September 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27857727/cell-transplantation-for-the-treatment-of-spinal-cord-injury-bone-marrow-stromal-cells-and-choroid-plexus-epithelial-cells
#12
REVIEW
Chizuka Ide, Norihiko Nakano, Kenji Kanekiyo
Transplantation of bone marrow stromal cells (BMSCs) enhanced the outgrowth of regenerating axons and promoted locomotor improvements of rats with spinal cord injury (SCI). BMSCs did not survive long-term, disappearing from the spinal cord within 2-3 weeks after transplantation. Astrocyte-devoid areas, in which no astrocytes or oligodendrocytes were found, formed at the epicenter of the lesion. It was remarkable that numerous regenerating axons extended through such astrocyte-devoid areas. Regenerating axons were associated with Schwann cells embedded in extracellular matrices...
September 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27855713/microrna-29-facilitates-transplantation-of-bone-marrow-derived-mesenchymal-stem-cells-to-alleviate-pelvic-floor-dysfunction-by-repressing-elastin
#13
Minfei Jin, Yuelin Wu, Jun Wang, Weiping Ye, Lei Wang, Peipei Yin, Wei Liu, Chenhao Pan, Xiaolin Hua
BACKGROUND: Pelvic floor dysfunction (PFD) is a condition affecting many women worldwide, with symptoms including stress urinary incontinence (SUI) and pelvic organ prolapse (POP). We have previously demonstrated stable elastin-expressing bone marrow-derived mesenchymal stem cells (BMSCs) attenuated PFD in rats, and aim to further study the effect of microRNA-29a-3p regulation on elastin expression and efficacy of BMSC transplantation therapy. METHODS: We inhibited endogenous microRNA-29a-3p in BMSCs and investigated its effect on elastin expression by RT-PCR and Western blot...
November 17, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27847404/neuroprotective-effects-of-bone-marrow-mesenchymal-stem-cells-on-bilateral-common-carotid-arteries-occlusion-model-of-cerebral-ischemia-in-rat
#14
Bagher Pourheydar, Sara Soleimani Asl, Mostafa Azimzadeh, Adel Rezaei Moghadam, Asghar Marzban, Mehdi Mehdizadeh
Cell therapy is the most advanced treatment of the cerebral ischemia, nowadays. Herein, we discuss the neuroprotective effects of bone marrow mesenchymal stem cells (BMSCs) on rat hippocampal cells following intravenous injection of these cells in an ischemia-reperfusion model. Adult male Wistar rats were divided into 5 groups: control, sham (surgery without blockage of common carotid arteries), ischemia (common carotid arteries were blocked for 30 min prior to reperfusion), vehicle (7 days after ischemia PBS was injected via the tail vein), and treatment (injections of BMSC into the tail veins 7 days after ischemia)...
2016: Behavioural Neurology
https://www.readbyqxmd.com/read/27847384/parathyroid-hormone-induced-bone-marrow-mesenchymal-stem-cell-chondrogenic-differentiation-and-its-repair-of-articular-cartilage-injury-in-rabbits
#15
Yushu Chen, Yi Chen, Shujiang Zhang, Xiufan Du, Bo Bai
BACKGROUND We explored the effect of parathyroid hormone (PTH)-induced bone marrow stem cells (BMSCs) complexed with fibrin glue (FG) in the repair of articular cartilage injury in rabbits. MATERIAL AND METHODS Forty-eight rabbits randomized into four groups were subjected to articular surgery (cartilage loss). The PTH and non-PTH intervention groups included transplantation with PTH/BMSC/FG xenogeneic and BMSC/FG xenogeneic complexes, respectively, into the injured area. The injured group contained no transplant while the control group comprised rabbits without any articular injury...
November 16, 2016: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/27833584/in-vitro-differentiation-of-bone-marrow-mesenchymal-stem-cells-into-neuron-like-cells-by-cerebrospinal-fluid-improves-motor-function-of-middle-cerebral-artery-occlusion-rats
#16
Ying Ye, Yi-Ran Peng, Shu-Qun Hu, Xian-Liang Yan, Juan Chen, Tie Xu
Bone marrow mesenchymal stem cells (BMSCs) represent a promising tool for stem cell-based therapies. However, the majority of BMSC transplants only allow for limited recovery of the lost functions. We previously found that human cerebrospinal fluid (hCSF) is more potent than growth factors in differentiating human BMSCs into neuron-like cells in vitro. In this study, we studied the effect of transplantation of rat BMSC-derived neuron-like cells (BMSC-Ns) induced by hCSF into rat brain with middle cerebral artery occlusion (MCAO)...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27806759/-evaluation-of-biocompatibility-of-ti-6al-4v-scaffolds-fabricated-by-electron-beam-melting
#17
H Wang, B J Zhao, R Z Yan, C Wang, C C Luo, M Hu
Objective: To investigate the biocompatibility of Ti-6Al-4V scaffolds fabricated by electron beam melting(EBM). Methods: Bone marrow mesenchymal stem cells(BMSC) co-cultured with Ti-6Al-4V specimens fabricated with EBM was prepared as experimental group and the regular cells culture was employed as control. The biocompatibility was detected using CCK-8 and cytoskeleton staining. The osteogenic differentiation ability was assessed using mineralization nodule formation. A 24 mm defect was created on the right mandibular body in 12 beagles...
November 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27804974/mesenchymal-stem-cells-combined-with-hepatocyte-growth-factor-therapy-for-attenuating-ischaemic-myocardial-fibrosis-assessment-using-multimodal-molecular-imaging
#18
Huizhu Chen, Rui Xia, Zhenlin Li, Lizhi Zhang, Chunchao Xia, Hua Ai, Zhigang Yang, Yingkun Guo
Clinically, myocardial fibrosis is increasingly being recognized as a new therapeutic target for ischaemic heart diseases. The aim of this study was to investigate whether noninvasive multimodal molecular imaging could be used to dynamically assess whether the combination of bone marrow mesenchymal stem cells (BMSCs) and hepatocyte growth factor (HGF) therapy can synergistically attenuate myocardial fibrosis after myocardial infarction (MI). MI was induced in 28 rats by coronary ligation with subsequent injection of BMSCs/HGF, BMSCs, HGF, or saline into the border zone under echocardiography guidance...
November 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27803667/wedelolactone-enhances-osteoblastogenesis-but-inhibits-osteoclastogenesis-through-sema3a-nrp1-plexina1-pathway
#19
Yan-Qiu Liu, Xiao-Fei Han, Jun-Xia Bo, Hui-Peng Ma
Bone remodeling balance is maintained by tight coupling of osteoblast-mediated bone formation and osteoclast-mediated bone resorption. Thus, agents with the capacity to regulate osteoblastogenesis and osteoclastogenesis have been investigated for therapy of bone-related diseases such as osteoporosis. In this study, we found that wedelolactone, a compound isolated from Ecliptae herba, and a 9-day incubation fraction of conditioned media obtained from wedelolactone-treated bone marrow mesenchymal stem cell (BMSC) significantly inhibited tartrate-resistant acid phosphatase (TRAP) activity in RANKL-stimulated osteoclastic RAW264...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27788708/-role-of-neutrophils-in-treatment-of-rats-with-d-galactosamine-induced-acute-liver-failure-with-bone-marrow-mesenchymal-stem-cells
#20
X Zhao, X L Shi, Z H Zhang, H C Ma, X W Yuan, Y T Ding
Objective: To investigate the therapeutic effect of bone marrow mesenchymal stromal cell (BMSC) transplantation on D-galactosamine-induced acute liver failure in Sprague-Dawley (SD) rats, as well as the mechanism of neutrophils in this process. Methods: A total of 39 male SD rats were divided into control group (8 rats, intraperitoneal injection of isotonic saline), model group (10 rats, intraperitoneal injection of D-galactosamine), solvent group (9 rats, tail vein injection of isotonic saline at 2 hours after intraperitoneal injection of D-galactosamine), and treatment group (12 rats, tail vein injection of MSCs at 2 hours after intraperitoneal injection of D-galactosamine)...
August 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
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