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https://www.readbyqxmd.com/read/29775452/the-effects-of-a-pulsed-electromagnetic-field-on-the-proliferation-and-osteogenic-differentiation-of-human-adipose-derived-stem-cells
#1
Yukun Yin, Ping Chen, Qiang Yu, Yan Peng, ZeHao Zhu, Jing Tian
BACKGROUND A low frequency pulsed electromagnetic field (PEMF) has been confirmed to play an important role in promoting the osteogenic differentiation of human bone marrow stem cells (BMSCs). Adipose-derived stem cells (ASCs) possess some attractive characteristics for clinical application compared to BMSCs, such as abundant stem cells from lipoaspirates, faster growth, less discomfort and morbidity during surgery. ASCs can become adipocytes, osteoblasts, chondrocytes, myocytes, neurocytes, and other cell types...
May 18, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29775181/porous-lithium-doped-hydroxyapatite-scaffold-seeded-with-hypoxia-preconditioned-bone-marrow-mesenchymal-stem-cells-for-bone-tissue-regeneration
#2
Donghai Li, Huifang Liu, Jinhai Zhao, Zhouyuan Yang, Xiaowei Xie, Zhun Wei, Dongzhe Li, Pengde Kang
Hydroxyapatite (HA) is a commonly used biomaterial in bone-tissue engineering, but pure HA is deficient in osteoinduction. In this study, we fabricated scaffolds of lithium-doped HA (Li-HA) and assess the bone generation enhancement of Li-HA scaffolds seeded with hypoxia-preconditioned bone-marrow mesenchymal stem cells (BMMSCs). We found that 1.5%Li-HA obtained optimal cell proliferation activity in vitro. In an in vivo study, Li-HA/BMSCs enhanced new bone formation, reducing the GSK-3β and increasing the β-catenin, but the angiogenic effect was not modified significantly...
May 18, 2018: Biomedical Materials
https://www.readbyqxmd.com/read/29774455/semaphorin-3a-promotes-osteogenic-differentiation-of-bmsc-from-type-2-diabetes-mellitus-rats
#3
Qiao Qiao, Xiaoru Xu, Yingliang Song, Shuang Song, Wenzhong Zhu, Fenglan Li
Bone regeneration is impaired in patients with type 2 diabetes mellitus (T2DM), which leads to non-healing after bone loss. The decreased osteogenic capacity of bone mesenchymal stem cells (BMSCs) might be a main reason. Sema3A, as a powerful protein promoting osteocyte differentiation, shows potential for bone regeneration treatment. BMSCs may be a therapeutic solution. In this study, we divided BMSCs from T2DM rats (BMSCs-D) and normal rats (BMSCs-N), identified their ability to differentiate into different cell types...
May 17, 2018: Journal of Molecular Histology
https://www.readbyqxmd.com/read/29772189/comparison-of-intraoral-bone-regeneration-with-iliac-and-alveolar-bmscs
#4
F Wang, Y Zhou, J Zhou, M Xu, W Zheng, W Huang, W Zhou, Y Shen, K Zhao, Y Wu, D Zou
This study compared the osteogenic potential of bone marrow mesenchymal stem cells (BMSCs) of iliac and alveolar origins (I-BMSCs and Al-BMSCs, respectively), which were transplanted in combination with β tricalcium phosphate (β-TCP) in peri-implant bone defects to investigate the osseointegration between dental implants and tissue-engineered bone in dogs. Specifically, I-BMSCs and Al-BMSCs were cultured, characterized, and seeded on β-TCP and subjected to immunoblotting analyses and alkaline phosphatase activity assays...
May 1, 2018: Journal of Dental Research
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
#5
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/29770951/requirement-of-tgf%C3%AE-signaling-for-effect-of-fluoride-on-osteoblastic-differentiation
#6
Jingmin Zhang, Ningning Jiang, Haolan Yu, Xiuhua Yu, Fengyang Guo, Zhitao Zhao, Hui Xu
Research focused on transforming growth factor β (TGFβ) signaling in osteoblast is gradually increasing, whereas literature is rare in terms of fluorosis. This work aimed to investigate how TGFβ signaling participated in regulation of the osteoblast by different doses of fluoride treatment. Bone marrow stem cells (BMSCs) were developed into osteoblastic cells and exposed to 1, 4, and 16 mg/L F- with and without 10 ng/mL of TGFβ. Cell viability and differentiation state of osteoblast under different settings were measured by means of cell counting kit and analysis of alkaline phosphatase (ALP) activity as well as formation of mineral nodules...
May 16, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29765415/human-recombinant-peptide-sponge-enables-novel-less-invasive-cell-therapy-for-ischemic-stroke
#7
Michiyuki Miyamoto, Kentaro Nakamura, Hideo Shichinohe, Tomohiro Yamauchi, Masaki Ito, Hisayasu Saito, Masahito Kawabori, Toshiya Osanai, Tasuku Sasaki, Kiyohiro Houkin, Satoshi Kuroda
Bone marrow stromal cell (BMSC) transplantation has the therapeutic potential for ischemic stroke. However, it is unclear which delivery routes would yield both safety and maximal therapeutic benefits. We assessed whether a novel recombinant peptide (RCP) sponge, that resembles human collagen, could act as a less invasive and beneficial scaffold in cell therapy for ischemic stroke. BMSCs from green fluorescent protein-transgenic rats were cultured and Sprague-Dawley rats were subjected to permanent middle cerebral artery occlusion (MCAo)...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765408/the-interaction-between-bmal1-and-per2-in-mouse-bmsc-osteogenic-differentiation
#8
Haiya Zhuo, Yuhong Wang, Qing Zhao
The circadian clock is a system that controls endogenous time of organisms, and it regulates the physiology and behavior of bodies. The transcription factors Brain and Muscle ARNT-like Protein 1 (BMAL1) and Period2 (Per2) are components of the circadian clock, and they play vital roles in circadian clock function. Both Bmal1-/- mice and Per2-/- mice display obvious bone volume changes. In this study, we inhibited the expression of Bmal1 in bone marrow-derived mesenchymal stem cells (BMSCs) using a lentiviral vector harboring RNAi sequences, which increased the osteogenic differentiation capability of BMSCs...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765406/the-differentiation-balance-of-bone-marrow-mesenchymal-stem-cells-is-crucial-to-hematopoiesis
#9
REVIEW
Jiang Wu, Weiwei Zhang, Qian Ran, Yang Xiang, Jiang F Zhong, Shengwen Calvin Li, Zhongjun Li
Bone marrow mesenchymal stem cells (BMSCs), the important component and regulator of bone marrow microenvironment, give rise to hematopoietic-supporting stromal cells and form hematopoietic niches for hematopoietic stem cells (HSCs). However, how BMSC differentiation affects hematopoiesis is poorly understood. In this review, we focus on the role of BMSC differentiation in hematopoiesis. We discussed the role of BMSCs and their progeny in hematopoiesis. We also examine the mechanisms that cause differentiation bias of BMSCs in stress conditions including aging, irradiation, and chemotherapy...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29765377/neutrophils-inhibit-synthesis-of-mineralized-extracellular-matrix-by-human-bone-marrow-derived-stromal-cells-in-vitro
#10
Okan W Bastian, Michiel Croes, Jacqueline Alblas, Leo Koenderman, Luke P H Leenen, Taco J Blokhuis
Although controlled local inflammation is essential for adequate bone regeneration, several studies have shown that hyper-inflammatory conditions after major trauma are associated with impaired fracture healing. These hyper-inflammatory conditions include the trauma-induced systemic inflammatory response to major injury, open fractures, and significant injury to the surrounding soft tissues. The current literature suggests that increased or prolonged influx of neutrophils into the fracture hematoma may mediate impairment of bone regeneration after hyper-inflammatory conditions...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29763908/connexin-43-modulates-osteogenic-differentiation-of-bone-marrow-stromal-cells-through-gsk-3beta-beta-catenin-signaling-pathways
#11
Fei-Xiang Lin, Gui-Zhou Zheng, Bo Chang, Rong-Chun Chen, Qi-Hao Zhang, Peng Xie, Da Xie, Guo-Yong Yu, Qin-Xiao Hu, De-Zhong Liu, Shi-Xin Du, Xue-Dong Li
BACKGROUND/AIMS: Bone marrow stromal cells (BMSCs) are multipotent precursors that give rise to osteoblasts, and contribute directly to bone formation. Connexin 43 (Cx43) is the most ubiquitous gap junction protein expressed in bone cell types, and plays crucial roles in regulating intercellular signal transmission for bone development, differentiation and pathology. However, the precise role and mechanism of Cx43 in BMSCs are less known. Here, we investigate the function of Cx43 in osteogenic differentiation of BMSCs in vitro...
May 10, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29763517/novel-engineered-tendon-fibrocartilage-bone-composite-with-cyclic-tension-for-rotator-cuff-repair
#12
Qian Liu, Taku Hatta, Jun Qi, Haoyu Liu, Andrew R Thoreson, Peter C Amadio, Steven L Moran, Scott P Steinmann, Anne Gingery, Chunfeng Zhao
Surgical repair of rotator cuff tears presents a significant clinical challenge with high failure rates and inferior functional outcomes. Graft augmentation improves repair outcomes, however currently available grafting materials have limitations. While cell-seeded decellularized tendon slices may facilitate cell infiltration, promote tendon incorporation and preserve original mechanical strength, the unique fibrocartilage zone is yet to be successfully reestablished. In this study, we investigated the biological and mechanical properties of an engineered tendon-fibrocartilage-bone composite (TFBC) with cyclic tension (3% strain, 0...
May 15, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29758548/stromal-cell-derived-factor-sdf-1-alpha-overexpression-promotes-bone-regeneration-by-osteogenesis-and-angiogenesis-in-osteonecrosis-of-the-femoral-head
#13
Fan Yang, Feng Xue, Junjie Guan, Zeng Zhang, Jimin Yin, Qingling Kang
BACKGROUND/AIMS: Osteonecrosis of the femoral head (ONFH) is a devastating orthopedic disease. Previous studies suggested that stromal-cell-derived factor (SDF)-1 was involved in osteogenesis and angiogenesis. However, whether SDF-1 potentiates the angiogenesis and osteogenesis of bone marrow-derived stromal stem cells (BMSCs) in ONFH is not clear. METHODS: BMSCs were transfected with green fluorescent protein (GFP) or the fusion gene encoding GFP and SDF-1α, and transgenic efficacy was monitored by immunofluorescence...
May 7, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29758019/ginkgo-biloba-l-extract-reduces-h2o2-induced-bone-marrow-mesenchymal-stem-cells-cytotoxicity-by-regulating-mitogen-activated-protein-kinase-mapk-signaling-pathways-and-oxidative-stress
#14
Ao Wang, Qiwei Yang, Qiuju Li, Xiaonan Wang, Shuhong Hao, Jincheng Wang, Ming Ren
BACKGROUND The oxidative stress environment of pathological tissue has an adverse effect on the survival of bone marrow mesenchymal stem cells (BMSCs) transplantation. Ginkgo biloba L. extract (EGB) has a potent antioxidant effect. In this research, we assessed the protective effects of EGB and EGB-Containing Serum (EGB CS) on BMSCs against injury induced by hydrogen peroxide (H2O2). MATERIAL AND METHODS BMSCs were pretreated with EGB or EGB CS and treated with H2O2. The cell counting kit-8 (CCK-8) method was utilized to detect cell viability...
May 14, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29757659/bone-marrow-derived-mesenchymal-stem-cells-promoted-cutaneous-wound-healing-by-regulating-keratinocyte-migration-via-the-%C3%AE-2-adrenergic-receptor-signaling
#15
Jiahui Huo, Sujing Sun, Zhijun Geng, Wei Sheng, Runkai Chen, Kui Ma, Xiaoyan Sun, Xiaobing Fu
Mesenchymal stem cells (MSCs) play an important role in the cutaneous wound healing; however, the functional mechanisms involved in the healing process are poorly understood. A series of studies indicate that keratinocytes which migrate into the wound bed rely on an epithelial-mesenchymal transition (EMT)-like process to initiate re-epithelialization. We therefore examined whether bone marrow-derived MSCs (BMSCs) could affect biological behavior and induce EMT-like characteristics in the human epidermal keratinocytes (HEKs) and in the immortalized human keratinocyte cell line HaCaT cells; and we investigated the signaling pathways of BMSC-mediated phenotypic changes...
May 14, 2018: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29757436/continuous-pth-in-male-mice-causes-bone-loss-because-it-induces-serum-amyloid-a-saa
#16
Shilpa Choudhary, Elizabeth Santone, Yee Sui-Pok, Joseph Lorenzo, Douglas J Adams, Alexandra Goetjen, Mary Beth McCarthy, Augustus D Mazzocca, Carol Pilbeam
Increased bone resorption is considered to explain why intermittent PTH is anabolic for bone but continuous PTH is catabolic. However, when cyclooxygenase-2 (COX2) is absent in mice, continuous PTH becomes anabolic without decreased resorption. In murine bone marrow stromal cells (BMSCs), SAA3, induced in the hematopoietic lineage by the combination of COX2-produced prostaglandin and receptor activator of nuclear factor-κB ligand (RANKL), suppresses PTH-stimulated osteoblast differentiation. To determine if SAA3 inhibits the anabolic effects of PTH in vivo, wild-type (WT) and SAA3 knockout (KO) mice were infused with PTH...
May 10, 2018: Endocrinology
https://www.readbyqxmd.com/read/29754170/cardiac-support-device-asd-delivers-bone-marrow-stem-cells-repetitively-to-epicardium-has-promising-curative-effects-in-advanced-heart-failure
#17
Shizhong Yue, Muhammad Naveed, Wang Gang, Dingding Chen, Zhijie Wang, Feng Yu, Xiaohui Zhou
Ventricular restraint therapy is a non-transplant surgical option for the management of advanced heart failure (HF). To augment the therapeutic applications, it is hypothesized that ASD shows remarkable capabilities not only in delivering stem cells but also in dilated ventricles. Male SD rats were divided into four groups (n = 6): normal, HF, HF + ASD, and HF + ASD-BMSCs respectively. HF was developed by left anterior descending (LAD) coronary artery ligation in all groups except normal group. Post-infarcted electrocardiography (ECG) and brain natriuretic peptide (BNP) showed abnormal heart function in all model groups and HF + ASD-BMSCs group showed significant improvement as compared to other HF, HF + ASD groups on day 30...
May 12, 2018: Biomedical Microdevices
https://www.readbyqxmd.com/read/29753427/gelfoam-haemostatic-agent-with-or-without-autologous-bone-marrow-derived-stem-cells-for-the-regeneration-of-critical-size-mandibular-defects-in-the-rabbit
#18
A A Ashour, M Zaghloul, W Mahmoud, M E Helal, M E Grawish
This study evaluated the effect of Gelfoam sponge with and without autologous bone marrow-derived stem cells (BMSCs) on bone regeneration in critical-size mandibular defects. The study involved 56 New Zealand rabbits assigned to four groups (14 in each). The osseous defects in group I were irrigated with normal saline, those in group II were grafted with autogenous tibial bone, and those in group III were filled with Gelfoam sponge. Group IV defects were treated as for group III, but the interface between the Gelfoam sponge and bone surface was injected with BMSCs...
May 9, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29752623/catalpol-promotes-the-survival-and-vegf-secretion-of-bone-marrow-derived-stem-cells-and-their-role-in-myocardial-repair-after-myocardial-infarction-in-rats
#19
Xing'ai Ju, Degang Xue, Tongyi Wang, Baiping Ge, Yu Zhang, Zhanquan Li
Bone mesenchymal stem cells (BMSCs) transplantation has been recognized as an effective method for the treatment of myocardial infarction (MI). However, its efficacy is always restricted by the low survival of transplanted BMSCs in the ischemic myocardium. The aim of this study was to investigate the effect of catalpol pre-treatment on the survival and vascular endothelial growth factor (VEGF) secretion of BMSCs under oxygen glucose deprivation (OGD) condition and their role in myocardial repair in a rat model of MI...
May 11, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29749549/enhanced-proliferation-and-differentiation-of-ho-1-gene-modified-bone-marrow-derived-mesenchymal-stem-cells-in-the-acute-injured-kidney
#20
Nanmei Liu, Huiling Wang, Guofeng Han, Jin Cheng, Weifeng Hu, Jinyuan Zhang
The aim of the present study was to investigate the effect of heme oxygenase-1 (HO-1) overexpression on the survival and differentiation ability of bone marrow‑derived mesenchymal stem cells (BMSCs) in the acute kidney injury (AKI) microenvironment. HO-1-BMSCs and enhanced green fluorescent protein (eGFP)-BMSCs were constructed. Rat ischemia/reperfusion (I/R)‑AKI-kidney homogenate supernatant was prep-ared to treat the BMSCs, eGFP-BMSCs and HO-1-BMSCs in vitro. In the AKI microenvironment, the HO-1-BMSCs exhibited a smaller proportion of cells at the G0/G1 phase, and a larger proportion of cells expressing proliferating cell nuclear antigen (PCNA) and cytokeratin 18 (CK18)...
May 11, 2018: International Journal of Molecular Medicine
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