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https://www.readbyqxmd.com/read/29233068/altered-functional-expression-of-%C3%AE-adrenergic-receptors-in-rhesus-monkey-embryonic-stem-cell-derived-cardiomyocytes
#1
Nermeen Ahmed Mohamed Eldabah, Erastus Nembu Nembo, Judith Semmler, Marina Penner, Marek Molcanyi, Rania Swelem, Amina Hassab, Juergen Hescheler, Filomain Nguemo
Pluripotent stem cells have demonstrated the potential to generate large numbers of functional cardiomyocytes (CMs) from different cell sources. Besides Wnt signaling, additional pathways are involved in early cardiac development and function. To date however, no study exists showing the effects of perturbing the canonical Wnt pathway using non-human primate embryonic stem (ES) cells. Here we investigated the effect of canonical Wnt inhibition during differentiation of non-human primate ES cell-derived CMs under defined, growth factors conditions...
December 12, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29230255/control-of-cell-proliferation-by-a-porous-chitosan-scaffold-with-multiple-releasing-capabilities
#2
Shu-Jyun Cai, Ching-Wen Li, Daphne Weihs, Gou-Jen Wang
The aim of this study was to develop a porous chitosan scaffold with long-acting drug release as an artificial dressing to promote skin wound healing. The dressing was fabricated by pre-freezing at different temperatures (-20 and -80 °C) for different periods of time, followed by freeze-drying to form porous chitosan scaffolds with different pore sizes. The chitosan scaffolds were then used to investigate the effect of the controlled release of fibroblast growth factor-basic (bFGF) and transforming growth factor-β1 (TGFβ1) on mouse fibroblast cells (L929) and bovine carotid endothelial cells (BEC)...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/29229125/efficacy-of-the-dual-controlled-release-of-hgf-and-bfgf-impregnated-with-a-collagen-gelatin-scaffold
#3
Shuichi Ogino, Naoki Morimoto, Michiharu Sakamoto, Chizuru Jinno, Yuki Sakamoto, Tsuguyoshi Taira, Shigehiko Suzuki
BACKGROUND: We previously developed collagen/gelatin sponges (CGS) able to sustain and release basic fibroblast growth factor (bFGF) and reported that this CGS impregnated with bFGF promoted dermis-like tissue formation. We herein confirmed the single-sustained release of hepatocyte growth factor (HGF) and the dual sustained release of HGF and bFGF from CGSs, and explored its efficacy using a murine model of skin defects. MATERIALS AND METHODS: The sustained release of HGF alone and both HGF and bFGF from CGSs were evaluated in vitro...
January 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29214431/establishment-and-characterization-of-a-kidney-cell-line-from-kelp-grouper-epinephelus-moara
#4
Xiao-Feng Liu, Ya-Hong Wu, Shi-Na Wei, Na Wang, Peng-Fei Li, Yang-Zhen Li, Nian-Wei Zhang, Qi-Wei Qin, Song-Lin Chen
A novel cell line, Epinephelus moara kidney cell line (EMK), was established from kidneys of kelp grouper E. moara. Cells were cultured at 24 °C in Leibovitz's L-15 medium (L15) supplemented with antibiotics, basic fibroblast growth factor (bFGF), foetal bovine serum (FBS) and 2-mercaptoethanol (2-ME). EMK cells, fibroblastic in morphology, proliferated to 100% confluency in 3-4 days and were subcultured for over 50 passages. The cells could grow from 18 to 30 °C, with optimal growth at 24 °C. Chromosome analysis indicated that the modal chromosome number was 48 in the cells at passage 42...
December 6, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29211291/topical-application-of-bfgf-on-acid-conditioned-and-non-conditioned-dentin-effect-on-cell-proliferation-and-gene-expression-in-cells-relevant-for-periodontal-regeneration
#5
Fernanda Regina Godoy Rocha, João Antônio Chaves de Souza, Morgana Rodrigues Guimarães-Stabili, José Eduardo Cezar Sampaio, Carlos Rossa
MATERIAL AND METHODS: Periodontal regeneration is still a challenge in terms of predictability and magnitude of effect. In this study we assess the biological effects of combining chemical root conditioning and biological mediators on three relevant cell types for periodontal regeneration. Bovine dentin slices were conditioned with 25% citric acid followed by topical application of basic fibroblast growth factor (bFGF, 10 and 50 ng). We used ELISA to assess the dynamics of bFGF release from the dentin surface and RT-qPCR to study the expression of Runx2, Col1a1, Bglap and fibronectin by periodontal ligament (PDL) fibroblasts, cementoblasts and bone marrow stromal cells (BMSC) grown onto these dentin slices...
November 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/29211121/evolution-of-periodontal-disease-immune-response-and-rank-rankl-opg-system
#6
Fabrício Gibertoni, Meire Ellen Ligia Sommer, Marcelo Augusto Marretto Esquisatto, Maria Esméria Corezola do Amaral, Camila Andrea de Oliveira, Thiago Antônio Moretti de Andrade, Fernanda Aparecida Sampaio Mendonça, Milton Santamaria-Jr, Maíra Felonato
The aim of this study was to evaluate markers of bone loss and immune response present in evolution of periodontal disease. One hundred and two Wistar rats were divided into three animals groups: PD0, without ligation and PD15 days and PD60 days, submitted to ligation placement with a sterile 3-0 silk cord in the cervical region of the upper first molar on both sides. Samples were obtained from the gingival tissue for histomorphometric analysis, immunohistochemical analysis of RANK, RANKL, OPG, characterization of the inflammatory infiltrate, quantification of nitric oxide, MCP-1, RANTES, IP10 chemokines, and expression of the TGF-b1, VEG, and bFGF...
November 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29208350/efficient-differentiation-of-bone-marrow-mesenchymal-stem-cells-into-endothelial-cells-in%C3%A2-vitro
#7
Chengen Wang, Yuan Li, Min Yang, Yinghua Zou, Huihui Liu, Zeyin Liang, Yue Yin, Guochen Niu, Ziguang Yan, Bihui Zhang
OBJECTIVE: Endothelial cells (ECs) play an important role in neovascularisation, but are too limited in number for adequate therapeutic applications. Mesenchymal stem cells (MSCs) have the potential to differentiate into endothelial lineage cells, which makes them attractive candidates for therapeutic angiogenesis. The aim of this study was to investigate efficient differentiation of MSCs into ECs by inducing medium in vitro. METHODS: MSCs were isolated from bone marrow by density gradient centrifugation...
December 2, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29207135/bfgf-promotes-sca%C3%A2-1-cardiac-stem-cell-migration-through-activation-of-the-pi3k-akt-pathway
#8
Lin Ling, Shaohua Gu, Yan Cheng, Liucheng Ding
Cardiac stem cells (CSCs) are important for improving cardiac function following myocardial infarction, with CSC migration to infarcted or ischemic myocardium important for cardiac regeneration. Strategies to improve cell migration may improve the efficiency of myocardial regeneration. Basic fibroblast growth factor (bFGF) is an essential molecule in cell migration, but the endogenous bFGF level is too low to be effective. The effect of exogenously delivered bFGF on CSC migration was observed in vitro and in vivo in the present study...
November 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29203426/effects-of-structurally-stabilized-egf-and-bfgf-on-wound-healing-in-type-i-and-type-ii-diabetic-mice
#9
Seong Mi Choi, Kyoung-Mi Lee, Hyun Jung Kim, Ik Kyu Park, Hwi Ju Kang, Hang-Cheol Shin, Dawoon Baek, Yoorim Choi, Kwang Hwan Park, Jin Woo Lee
Diabetes mellitus comprises a multiple metabolic disorder that affects millions of people worldwide and consequentially poses challenges for clinical treatment. Among the various complications, diabetic ulcer constitutes the most prevalent associated disorder and leads to delayed wound healing. To enhance wound healing capacity, we developed structurally stabilized epidermal growth factor (ST-EGF) and basic fibroblast growth factor (ST-bFGF) to overcome limitations of commercially available EGF (CA-EGF) and bFGF (CA-bFGF), such as short half-life and loss of activity after loading onto a matrix...
December 1, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29201234/efficacy-safety-and-influencing-factors-of-intra-calf-muscular-injection-of-bone-marrow-mononuclear-cells-in-the-treatment-of-type-2-diabetes-mellitus-induced-lower-extremity-vascular-disease
#10
Hui-Min Zhou, Fan Liu, Ai-Ge Yang, Yu-Qing Guo, Ya-Ru Zhou, Yong-Quan Gu, Bao-Yong Yan, Quan-Hai Li
The efficacy, safety and impact of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) associated with the intra-calf muscular injection of bone marrow mononuclear cells (BMMCs) in the treatment of type 2 diabetes mellitus (T2DM)-induced lower extremity vascular disease (LEVD) were evaluated. Patients with T2DM-LEVD were randomly divided into a control group and BMMCs group to assess the efficacy and safety of the treatment; serum VEGF and bFGF levels were detected. The BMMCs group was divided into superior genicular artery (SGA) and inferior genicular artery (IGA) subgroups as well as low-dose and high-dose subgroups for the comparison of efficacy indices...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29200966/microencapsulation-of-low-passage-poorly-differentiated-human-mucoepidermoid-carcinoma-cells-by-alginate-microcapsules-in-vitro-profiling-of-angiogenesis-related-molecules
#11
Sen Yang, Li-Juan Guo
Background: Human mucoepidermoid carcinoma (MEC) is regarded as the most common primary salivary malignancy. High-grade MEC has a high risk of recurrence and poor prognosis. Tumor angiogenesis, induced by poorly differentiated cancer cells of high-grade MEC, contributes to tumor growth and metastasis. Therefore, elucidating molecular mechanisms underlying the pro-angiogenic ability of poorly differentiated MEC cells is critical for the understanding of high-grade MEC progression. It is well known that three-dimensional (3D) cell culture, in contrast with conventional two-dimensional (2D) culture, provides a better approach to in vitro recapitulation of in vivo characteristics of cancer cells and their surrounding microenvironment...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29199971/collagen-scaffolds-tethered-with-bfgf-promote-corpus-spongiosum-regeneration-in-a-beagle-model
#12
He Tang, Weisheng Jia, Xianglin Hou, Yannan Zhao, Yong Huan, Wei Chen, Wei Yu, Ou Zhu Mi Ma, Gang Ye, Bing Chen, Jianwu Dai
Regeneration of the corpus spongiosum helps prevent complications following urethral reconstruction, but currently there is a lack of effective therapeutic methods in clinic. In previous studies, we fabricated a fusion protein CBD-bFGF that specifically binds to and releases from collagen biomaterials. We demonstrated that CBD-bFGF could promote angiogenesis and tissue regeneration in vivo. In this study, we established a beagle model with extensive urethral defects, and reconstructed the defects with collagen biomaterials that were unmodified or modified with CBD-bFGF...
December 4, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29198704/ischemic-flap-survival-improvement-by-composition-selective-fat-grafting-with-novel-adipose-tissue-derived-product-stromal-vascular-fraction-gel
#13
Pan Zhang, Jingwei Feng, Yunjun Liao, Junrong Cai, Tao Zhou, Mingliang Sun, Jianhua Gao, Kai Gao
BACKGROUND: Flap necrosis due to insufficient blood supply is a common postoperative complication in random pattern flaps. Stem cell therapies have emerged as promising biologics for tissue ischemia. A novel fat derived product, stromal vascular fraction gel (SVF-gel), can be prepared with lipoaspirate through simple mechanical processing, removing only the lipid content. SVF-gel enriches adipose-derived stem cells and potentially beneficial for flap necrosis. METHODS: Nude mice ischemic flaps were treated with human SVF-gel, stromal vascular fraction (SVF) cell suspension or saline (n = 10)...
November 30, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29191501/immunoprecipitation-high-performance-liquid-chromatographic-analysis-of-healing-process-in-chronic-suppurative-osteomyelitis-of-the-jaw
#14
Soung Min Kim, Mi Young Eo, Yun Ju Cho, Yeon Sook Kim, Suk Keun Lee
PURPOSE: Chronic suppurative osteomyelitis (CSO) of the jaw is one of the most difficult infectious diseases to manage, because it causes progressive bony destruction and is associated with bacterial inhabitation of the sequestra. A combination of antibiotic therapy and surgical debridement is often used to treat CSO. Nevertheless, various systemic conditions can lead to life-threatening complications. METHODS: The present study aimed to explore the wound healing progress in 16 cases of CSO through protein expression analysis of postoperative exudates (POE) that were collected 6 h, 1 day, and 2 days after saucerization and/or decortication...
October 27, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29188647/-experimental-study-on-accelerated-healing-of-jaw-fracture-using-gelatin-sponge-compound-growth-factor
#15
Tang Yanfeng, Chen Jianlin, Zhou Yunbiao
OBJECTIVE: To explore the role and mechanism of drug delivery systems using growth factor combined with gelatin sponge on accelerating the healing of jaw fracture and to seek better treatment of accelerating the maxillofacial fracture. METHODS: About 100 μg recombinant human bone morphogenetic protein (BMP)-2 was completely dissolved in 1 mL recombinant bovine basic fibroblast growth factor (bFGF), and the solution (40 μL) was dropped in gelatin sponge (0.5 cm×0...
October 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29185160/exogenous-growth-factors-enhance-the-expression-of-cola1-cola3-and-elastin-in-fibroblasts-via-activating-mapk-signaling-pathway
#16
TianDing Shen, Kai Gao, Yong Miao, ZhiQi Hu
Exogenous growth factors could accelerate the process of wound healing. However, the underlying mechanisms have not been clearly clarified. The aim of the present study was to investigate the effect of epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) on the expression of type I collagen (cola1), type III collagen (cola3), and Elastin in fibroblasts, which are widely expressed in fibroblasts and promote the function of fibroblasts. We measured the levels of cola1 and cola3 in human fibroblast cells cultured in medium containing EGF or bFGF at concentrations ranging from 0...
November 28, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29180337/-effect-of-basic-fibroblast-growth-factor-antibody-combined-with-irinotecan-on-proliferation-and-apoptosis-of-small-cell-lung-cancer-h223-cells-in-vitro
#17
Xiang-Hui Liao, Meng Xu, Jun-Jian Xiang
OBJECTIVE: To study the synergistic inhibitory effects of basic fibroblast growth factor (bFGF) monoclonal antibody (bFGF mAb) and irinotecan on the proliferation of small cell lung cancer H223 cells. METHODS: CCK-8 assay and flow cytometry were used to assess the effects of bFGF mAb combined with irinotecan on the proliferation and apoptosis of H223 cells, respectively. Western blotting was performed to analyze the effect of bFGF-mAb combined with irinotecan on AKT and ERK1/2 phosphorylation in the cells...
November 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29176036/one-step-delivery-of-a-functional-multi-layered-cell-sheet-using-a-thermally-expandable-hydrogel-with-controlled-presentation-of-cell-adhesive-proteins
#18
Yu Bin Lee, Joong-Yup Lee, Ha Yeon Byun, Taufiq Ahmad, Mitsuru Akashi, Michiya Matsusaki, Heungsoo Shin
In this study, we developed a new system enabling rapid delivery of a multi-layered cell sheet by combining layer-by-layer (LBL) coating of a cell membrane and surface engineered thermally expandable hydrogel. Human dermal fibroblasts were LBL-coated with fibronectin (FN) and gelatin to form a multi-layered cell sheet in a single seeding step via spontaneous 3D cell-cell interactions. FN was covalently immobilized onto the surface of a Tetronic®-based hydrogel at two different concentrations (1 and 5 g/ml) for stable adhesion of the multi-layered cell sheet, followed by polydopamine (PD) coating...
November 27, 2017: Biofabrication
https://www.readbyqxmd.com/read/29169406/extracellular-cathepsin-l-stimulates-axonal-growth-in-neurons
#19
Chihiro Tohda, Michihisa Tohda
OBJECTIVE: Cathepsin L, a lysosomal endopeptidase expressed in most eukaryotic cells, is a member of the papain-like family of cysteine proteases. Although commonly recognized as a lysosomal protease, cathepsin L is also secreted and involved in the degradation of extracellular matrix proteins. Previous studies demonstrated that the secretion of cathepsin L was stimulated by basic fibroblast growth factor (bFGF) and bFGF-enhanced axonal terminal sprouting of motor neurons. Based on these results, although it has never been directly investigated, we hypothesized that extracellular cathepsin L may induce axonal growth...
November 23, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29167725/transdifferentiation-of-human-dental-pulp-stem-cells-into-oligoprogenitor-cells
#20
Ardeshir Moayeri, Maryam Nazm Bojnordi, Sara Haratizadeh, Amir Esmaeilnejad-Moghadam, Rafieh Alizadeh, Hatef Ghasemi Hamidabadi
Introduction: The nerve fibers in central nervous system are surrounded by myelin sheet which is formed by oligodendrocytes. Cell therapy based on oligodendrocytes and their precursors transplantation can hold a promising alternative treatment for myelin sheet repair in demyelinating diseases. Methods: Human Dental Pulp Stem Cells (hDPSCs) are noninvasive, autologous and easy available source with multipotency characteristics, so they are in focus of interest in regenerative medicine...
September 2017: Basic and Clinical Neuroscience
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