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https://www.readbyqxmd.com/read/28926108/bone-morphogenetic-protein-7-inhibits-endothelial-mesenchymal-transition-in-pulmonary-artery-endothelial-cell-under-hypoxia
#1
Hongyue Zhang, Ying Liu, Lixin Yan, Wei Du, Xiaodan Zhang, Min Zhang, He Chen, Yafeng Zhang, Jianqiu Zhou, Hanliang Sun, Daling Zhu
Pulmonary artery hypertension (PAH) is characterized by structural changes in pulmonary arteries. Increased numbers of cells expressing α-smooth muscle actin (α-SMA) is a nearly universal finding in the remodeled artery. It has been confirmed endothelial-to-mesenchymal transition (EndoMT) may be a source of those α-SMA-expressing cells. In addition, the EndoMT is reversible. Here, we show that under hypoxia, the expression of bone morphogenetic protein 7 (BMP-7) was decreased both in vivo and in vitro. We also found that under normoxia, BMP-7 deficiency induced spontaneous EndoMT and cell migration...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28923783/bmp7-induced-pten-inhibits-akt-and-prevents-renal-fibrosis
#2
Debra F Higgins, Leah Ewart, Enda Masterson, Sadhbh Tennant, Gleb Grebnev, Marco Prunotto, Sylvia Pomposiello, Karin Conde-Knape, Finian M Martin, Catherine Godson
Bone morphogenetic protein-7 (BMP-7) counteracts pro-fibrotic effects of TGFβ1 in cultured renal cells and protects from fibrosis in acute and chronic renal injury models. Using the unilateral ureteral obstruction (UUO) model of chronic renal fibrosis, we investigated the effect of exogenous-rhBMP-7 on pro-fibrotic signaling pathways mediated by TGFβ1 and hypoxia. Mice undergoing UUO were treated with vehicle or rhBMP-7 (300μg/kg i.p.) every other day for eight days and kidneys analysed for markers of fibrosis and SMAD, MAPK, and PI3K signaling...
September 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28885620/oxidative-stress-induced-s100b-accumulation-converts-myoblasts-into-brown-adipocytes-via-an-nf-%C3%AE%C2%BAb-yy1-mir-133-axis-and-nf-%C3%AE%C2%BAb-yy1-bmp-7-axis
#3
Giulio Morozzi, Sara Beccafico, Roberta Bianchi, Francesca Riuzzi, Ilaria Bellezza, Ileana Giambanco, Cataldo Arcuri, Alba Minelli, Rosario Donato
Muscles of sarcopenic people show hypotrophic myofibers and infiltration with adipose and, at later stages, fibrotic tissue. The origin of infiltrating adipocytes resides in fibro-adipogenic precursors and nonmyogenic mesenchymal progenitor cells, and in satellite cells, the adult stem cells of skeletal muscles. Myoblasts and brown adipocytes share a common Myf5(+) progenitor cell: the cell fate depends on levels of bone morphogenetic protein 7 (BMP-7), a TGF-β family member. S100B, a Ca(2+)-binding protein of the EF-hand type, is expressed at relatively high levels in myoblasts from sarcopenic humans and exerts anti-myogenic effects via NF-κB-dependent inhibition of MyoD, a myogenic transcription factor acting upstream of the essential myogenic factor, myogenin...
September 8, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28885597/hypoxia-is-a-critical-parameter-for-chondrogenic-differentiation-of-human-umbilical-cord-blood-mesenchymal-stem-cells-in-type-i-iii-collagen-sponges
#4
Tangni Gómez-Leduc, Mélanie Desancé, Magalie Hervieu, Florence Legendre, David Ollitrault, Claire de Vienne, Michel Herlicoviez, Philippe Galéra, Magali Demoor
Umbilical cord blood (UCB) is an attractive alternative to bone marrow for isolation of mesenchymal stem cells (MSCs) to treat articular cartilage defects. Here, we set out to determine the growth factors (bone morphogenetic protein 2 (BMP-2) and transforming growth factor-β (TGF-β1)) and oxygen tension effects during chondrogenesis of human UCB-MSCs for cartilage engineering. Chondrogenic differentiation was induced using 3D cultures in type I/III collagen sponges with chondrogenic factors in normoxia (21% O₂) or hypoxia (<5% O₂) for 7, 14 and 21 days...
September 8, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28859537/nutrients-removal-from-the-secondary-effluents-of-municipal-domestic-wastewater-by-oscillatoria-tenuis-and-subsequent-co-digestion-with-pig-manure
#5
Qunpeng Cheng, Fang Deng, Hongxia Li, ZhenHua Qin, Mei Wang, Jianfen Li
Batch experiments were carried out to investgate the performance of Oscillatoria tenuis to remove nitrogen, phosphorus and COD (chemical oxygen demand) from secondary effluents of municipal domestic wastewater (SEMDW). Meanwhile the potential of biogas production by collected Oscillatoria tenuis co-digested with pig manure was also investigated. Oscillatoria tenuis had a biomass productivity of 150 mg L(-1)·d(-1), a removal rate of NH4(+)-N (96.1%), TP (82.9%) and COD (92.6%) within 7 days at an aeration rate of 1...
September 1, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28856336/effect-of-canine-cortical-bone-demineralization-on-osteogenic-differentiation-of-adipose-derived-mesenchymal-stromal-cells
#6
Kwangrae Jo, Yongsun Kim, Seung Hoon Lee, Yong Seok Yoon, Wan Hee Kim, Oh-Kyeong Kweon
Demineralized bone allografts and mesenchymal stromal cells have been used to promote bone regeneration. However, the degree to which cortical bone should be demineralized for use in combination with adipose-derived mesenchymal stromal cells (Ad-MSCs) remains to be clarified. In this study, the in vitro osteogenic ability of Ad-MSCs on allografts was investigated in relation to the extent of demineralization. Three treatment groups were established by varying exposure time to 0.6 N HCL: partially demineralized (PDB; 12 h), fully demineralized (FDB; 48 h), and non-demineralized bone (NDB; 0 h, as a control)...
August 2017: Heliyon
https://www.readbyqxmd.com/read/28852936/down-regulation-of-pax2-promotes-in-vitro-differentiation-of-podocytes-from-human-cd34-cells
#7
Manne Mudhu Sunitha, Lokanathan Srikanth, Pasupuleti Santhosh Kumar, Chodimella Chandrasekhar, Potukuchi Venkata Gurunadha Krishna Sarma
Podocytes are major kidney cells that help in glomerular filtration and any damage or loss is a major event in the progression of kidney diseases. Understanding podocytes development will help in designing therapeutic strategies against these renal diseases. Therefore, in vitro generation of podocytes from adult hematopoietic CD34(+) stem cells is explored in the present study. Apheretically, isolated human HSCs from peripheral blood showed the presence of CD34 surface glycoprotein through immunocytochemistry (ICC) and flowcytometry...
August 29, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28842333/a-theranostic-dental-pulp-capping-agent-with-improved-mri-and-ct-contrast-and-biological-properties
#8
S Mastrogiacomo, N Güvener, W Dou, H S Alghamdi, W A Camargo, J G O Cremers, P J A Borm, A Heerschap, E Oosterwijk, J A Jansen, X F Walboomers
Different materials have been used for vital dental pulp treatment. Preferably a pulp capping agent should show appropriate biological performance, excellent handling properties, and a good imaging contrast. These features can be delivered into a single material through the combination of therapeutic and diagnostic agents (i.e. theranostic). Calcium phosphate based composites (CPCs) are potentially ideal candidate for pulp treatment, although poor imaging contrast and poor dentino-inductive properties are limiting their clinical use...
August 22, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28840458/biogas-production-from-distilled-grain-waste-by-thermophilic-dry-anaerobic-digestion-pretreatment-of-feedstock-and-dynamics-of-microbial-community
#9
Ting-Ting Wang, Zhao-Yong Sun, Yu-Lian Huang, Li Tan, Yue-Qin Tang, Kenji Kida
Distilled grain waste (DGW) eluted from the Chinese liquor making process poses potential serious environmental problems. The objective of this study is to evaluate the feasibility of converting DGW to biogas by thermophilic dry anaerobic digestion. To improve biogas production, the effects of dilute H2SO4 and thermal pretreatment on DGW were evaluated by biochemical methane potential (BMP) tests. The results indicate that 90 °C thermal pretreatment provided the highest methane production at 212.7 mL/g-VTSadd...
August 24, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28838258/the-protective-effects-of-bone-morphogenetic-protein-7-against-epithelial-injury-and-matrix-metalloproteases-upregulation-induced-by-silica-in-vitro
#10
D Liang, G An, Z Zhu, Y Wang, G Yang, X Li, P Niu, L Chen, L Tian
OBJECTIVE: We investigate the effects of bone morphogenetic protein-7 (BMP-7) on models with silica-induced and macrophage-mediated fibrosis and its possible mechanisms in vitro. METHODS: Rat alveolar II epithelial (RLE-6TN) cells were incubated with the supernatant of mouse macrophage-like cells (RAW264.7) and treated with 0, 25, 50, and 100 μg/mL silica. Using Western blotting, the epithelial markers (surfactant proteins-C and E-cadherin) and the mesenchymal markers (fibronectin (FN) and viminten (Vim)) were detected...
September 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28837082/rna-interference-and-bmp-2-stimulation-allows-equine-chondrocytes-redifferentiation-in-3d-hypoxia-cell-culture-model-application-for-matrix-induced-autologous-chondrocyte-implantation
#11
Rodolphe Rakic, Bastien Bourdon, Magalie Hervieu, Thomas Branly, Florence Legendre, Nathalie Saulnier, Fabrice Audigié, Stéphane Maddens, Magali Demoor, Philippe Galera
As in humans, osteoarthritis (OA) causes considerable economic loss to the equine industry. New hopes for cartilage repair have emerged with the matrix-associated autologous chondrocyte implantation (MACI). Nevertheless, its limitation is due to the dedifferentiation occurring during the chondrocyte amplification phase, leading to the loss of its capacity to produce a hyaline extracellular matrix (ECM). To enhance the MACI therapy efficiency, we have developed a strategy for chondrocyte redifferentiation, and demonstrated its feasibility in the equine model...
August 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28822825/comparison-of-transforaminal-lumbar-interbody-fusion-outcomes-in-patients-receiving-rhbmp-2-versus-autograft
#12
Taleef R Khan, Kalin R Pearce, Steven J McAnany, Colleen M Peters, Munish C Gupta, Lukas P Zebala
BACKGROUND CONTEXT: Recombinant human bone morphogenetic protein 2 (rhBMP-2) plays a pivotal role in complex spine surgery. Despite its limited approval, the off-label use of rhBMP-2 is prevalent, particularly in transforaminal lumbar interbody fusions (TLIF) PURPOSE: To determine the effectiveness and safety of rhBMP-2 use in TLIF procedures versus autograft. STUDY DESIGN: Retrospective Cohort Study PATIENT SAMPLE: Patients older than 18 years undergoing spine surgery for lumbar degenerative spine disease at a single academic institution...
August 16, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28820323/non-surgical-model-for-alveolar-bone-regeneration-by-bone-morphogenetic-protein-2-7-gene-therapy
#13
Mariko Kawai, Yo-Hei Kataoka, Junya Sonobe, Hiromitsu Yamamoto, Masakazu Inubushi, Takuya Ishimoto, Takayoshi Nakano, Hiroki Maruyama, Jun-Ichi Miyazaki, Toshio Yamamoto, Kazuhisa Bessho, Kiyoshi Ohura
BACKGROUND: Alveolar bone is a critical tissue for tooth retention; however, once alveolar bone is lost, it may not spontaneously regenerate. Currently, bone grafts or artificial bone are commonly used for alveolar bone regeneration therapy. However, these therapies require surgical procedures, which present risks, particularly in aged patients. Therefore, the development of alveolar bone regeneration techniques that do not require surgical procedures is critical. It is well known that stem cells present in the periosteal and periodontal ligament may be induced to differentiate into osteogenic cells...
August 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28804438/green-tea-extract-induces-genes-related-to-browning-of-white-adipose-tissue-and-limits-weight-gain-in-high-energy-diet-fed-rat
#14
Li-Han Chen, Yi-Wen Chien, Chung-Tiang Liang, Ching-Hung Chan, Meng-Han Fan, Hui-Yu Huang
Background: A wealth of research has reported on the anti-obesity effects of green tea extract (GTE). Although browning of white adipose tissue (WAT) has been reported to attenuate obesity, no study has disclosed the effects of GTE on browning in Sprague Dawley rats. Objectives: The aims of the study were to investigate the effects of GTE on anti-obesity and browning, and their underlying mechanisms. Methods: Four groups of rats (n=10/group) were used including a normal diet with vehicle treatment, and a high-energy diet (HED) with vehicle or GTE by oral gavage at 77...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28803236/enhancement-of-bone-healing-by-local-administration-of-carbon-nanotubes-functionalized-with-sodium-hyaluronate-in-rat-tibiae
#15
Vanessa B Andrade, Marcos A Sá, Renato M Mendes, Paulo A Martins-Júnior, Gerluza A B Silva, Bruna R Sousa, Marcelo V Caliari, Erick S Ávila, Luiz Orlando Ladeira, Rodrigo R Resende, Anderson J Ferreira
It has been reported that carbon nanotubes (CNTs) serve as nucleation sites for the deposition of bone matrix and cell proliferation. Here, we evaluated the effects of multi-walled CNTs (MWCNTs) on bone repair of rat tibiae. Furthermore, because sodium hyaluronate (HY) accelerates bone restoration, we associated CNTs with HY (HY-MWCNTs) in an attempt to boost bone repair. The bone defect was created by a 1.6-mm-diameter drill. After 7 and 14 days, tibiae were processed for histological and morphometric analyses...
August 12, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28798084/a-small-population-of-liver-endothelial-cells-undergoes-endothelial-to-mesenchymal-transition-in-response-to-chronic-liver-injury
#16
Jordi Ribera, Montse Pauta, Pedro Melgar-Lesmes, Bernat Cordoba, Anna Bosch, Maria Calvo, Daniel Rodrigo-Torres, Pau Sancho-Bru, Aurea Mira, Wladimiro Jimenez, Manuel Morales-Ruiz
BACKGROUND AND AIMS: Rising evidence points to endothelial-to-mesenchymal transition (EndMT) as a significant source of the mesenchymal cell population in fibrotic diseases. In this context, we hypothesized that liver endothelial cells undergo EndMT during fibrosis progression. METHODS: Cirrhosis in mice was induced by CCl4 A transgenic mouse expressing a red fluorescent protein reporter under the control of Tie2 promoter (Tie2-tdTomato) was used to trace the acquisition of EndMT...
August 10, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28795778/time-dependent-effect-of-electrical-stimulation-on-osteogenic-differentiation-of-bone-mesenchymal-stromal-cells-cultured-on-conductive-nanofibers
#17
Siqi Zhu, Wei Jing, Xiaoqing Hu, Zirong Huang, Qing Cai, Yingfang Ao, Xiaoping Yang
Bone tissue engineering using bone mesenchymal stromal cells (BMSCs) is a multidisciplinary strategy that requires biodegradable scaffold, cell, various promoting cues to work simultaneously. Electrical stimulation (ES) is known able to promote osteogenic differentiation of BMSCs, but it is interesting to know how can it play the strongest promotion effect. To strengthen local ES on BMSCs, parallel-aligned conductive nanofibers were electrospun from the mixtures of poly(L-lactide) (PLLA) and multi-walled carbon nanotubes (MWCNTs), and used for cell culture...
August 10, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28782268/reprogramming-antagonizes-the-oncogenicity-of-hoxa13-long-noncoding-rna-hottip-axis-in-gastric-cancer-cells
#18
Deng-Chyang Wu, Sophie S W Wang, Chung-Jung Liu, Kenly Wuputra, Kohsuke Kato, Yen-Liang Lee, Ying-Chu Lin, Ming-Ho Tsai, Chia-Chen Ku, Wen-Hsin Lin, Shin-Wei Wang, Shotaro Kishikawa, Michiya Noguchi, Chu-Chieh Wu, Yi-Ting Chen, Chee-Yin Chai, Chen-Lung Steve Lin, Kung-Kai Kuo, Ya-Han Yang, Hiroyuki Miyoshi, Yukio Nakamura, Shigeo Saito, Kyosuke Nagata, Chang-Shen Lin, Kazunari K Yokoyama
Reprogramming of cancer cells into induced pluripotent stem cells (iPSCs) is a compelling idea for inhibiting oncogenesis, especially through modulation of homeobox proteins in this reprogramming process. We examined the role of various long noncoding RNAs (lncRNAs)-homeobox protein HOXA13 axis on the switching of the oncogenic function of bone morphogenetic protein 7 (BMP7), which is significantly lost in the gastric cancer cell derived iPS-like cells (iPSLCs). BMP7 promoter activation occurred through the corecruitment of HOXA13, mixed-lineage leukemia 1 lysine N-methyltransferase, WD repeat-containing protein 5, and lncRNA HoxA transcript at the distal tip (HOTTIP) to commit the epigenetic changes to the trimethylation of lysine 4 on histone H3 in cancer cells...
August 7, 2017: Stem Cells
https://www.readbyqxmd.com/read/28765970/bmp-7-enhances-snon-mrna-expression-in-renal-tubular-epithelial-cells-under-high-glucose-conditions
#19
Yuanyuan Wang, Ying Xiao, Shuang Li, Lei Shi, Lirong Liu, Yingying Zhang, Mingjun Shi, Bing Guo
The present study aimed to identify any association between bone morphogenetic protein‑7 (BMP‑7) and the expression of the transcriptional co‑repressor Ski‑related novel protein N (SnoN), in addition to alterations in tubulointerstitial fibrosis, during the development and progression of diabetic nephropathy (DN). Streptozotocin was injected into the tail veins of 20 healthy and specific pathogen‑free male Sprague‑Dawley rats. The rats were sacrificed to detect the appropriate biochemical indicators of renal pathological alterations following 24 weeks...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28740783/bone-morphogenetic-protein-7-enhances-degradation-of-osteoinductive-bioceramic-implants-in-an-ectopic-model
#20
J Camilo Roldán, Tim Klünter, Peter Schulz, Ulrike Deisinger, Claudius Diez, Waltraud Waiss, Christian Kirschneck, Torsten E Reichert, Rainer Detsch
BACKGROUND: The aim of the present study was to evaluate the degradation pattern of highly porous bioceramics as well as the bone formation in presence of bone morphogenetic protein 7 (BMP-7) in an ectopic site. METHODS: Novel calcium phosphate ceramic cylinders sintered at 1,300°C with a total porosity of 92-94 vol%, 45 pores per inch, and sized 15 mm (Ø) × 5 mm were grafted on the musculus latissimus dorsi bilaterally in 10 Göttingen minipigs: group I (n = 5): hydroxyapatite (HA) versus biphasic calcium phosphate (BCP), a mixture of HA and tricalcium phosphate (TCP) in a ratio of 60/40 wt%; group II (n = 5): TCP versus BCP...
June 2017: Plastic and Reconstructive Surgery. Global Open
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