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Hepatocyte growth factor

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https://www.readbyqxmd.com/read/29775001/-expression-and-significance-of-serum-hepatocyte-growth-factor-and-myeloperoxidase-in-patients-with-obstructive-sleep-apnea-hypopnea-syndrome
#1
L B Liao, J M Zhai, G G Chen, Z E Ma, X B Yang, J G Zhang
Objective: The aim of this study is to explore the expression and significance of serum HGF and MPO in patients with obstructive sleep apnea hypopnea syndrome (OSAHS) in adults. Method: Ninety-six cases of OSAHS patients diagnosed by PSG were divided into 3 groups: Heavy, medium and light according to the range of AHI; 32 cases of outpatients were healthy persons as the control group. The serum HGF and MPO were determined by ELISA; HGF and MPO were measured after comprehensive treat with CPAP in patients with severe OSAHS, and the correlation between HGF, MPO and PSG were analyzed...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774991/aggregate-mesenchymal-stem-cell-delivery-ameliorates-the-regenerative-niche-for-muscle-repair
#2
Marissa A Ruehle, Hazel Y Stevens, Aaron M Beedle, Robert E Guldberg, Jarrod A Call
Duchenne muscular dystrophy (DMD) is a severe muscle wasting disease due to the absence of the dystrophin protein from the muscle cell membrane which renders the muscle susceptible to continuous damage. In DMD patients, muscle weakness, together with cycles of degeneration/regeneration and replacement with non-contractile tissue, limit mobility and lifespan. Since the loss of dystrophin result in loss of polarity and a reduction in the number of self-renewing satellite cells, it is postulated that these patients could achieve an improved quality of life if delivered cells could restore satellite cell function...
May 18, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29771943/cross-talk-between-human-airway-epithelial-cells-and-3t3-j2-feeder-cells-involves-partial-activation-of-human-met-by-murine-hgf
#3
Robert E Hynds, Kate H C Gowers, Ersilia Nigro, Colin R Butler, Paola Bonfanti, Adam Giangreco, Cecilia M Prêle, Sam M Janes
There is considerable interest in the ex vivo propagation of primary human basal epithelial stem/progenitor cells with a view to their use in drug development, toxicity testing and regenerative medicine. These cells can be expanded in co-culture with mitotically inactivated 3T3-J2 murine embryonic feeder cells but, similar to other epithelial cell culture systems employing 3T3-J2 cells, the aspects of cross-talk between 3T3-J2 cells and human airway basal cells that are critical for their expansion remain largely unknown...
2018: PloS One
https://www.readbyqxmd.com/read/29770800/current-and-future-circulating-biomarkers-for-cardiac-amyloidosis
#4
REVIEW
Marco Luciani, Luca Troncone, Federica Del Monte
Cardiac amyloidosis (CA) comprises a heterogeneous group of medical conditions affecting the myocardium. It presents with proteinaceous infiltration with variable degrees of severity, prevalence and evolution. Despite this heterogeneity, erroneous protein folding is the common pathophysiologic process, yielding the formation of a single misfolded protein (monomer) that progressively evolves and ultimately forms amyloid fibers. Additionally, by seeding out from the organs of origin, intermediates called oligomers metastasize and restart the process...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29769543/the-cytokine-secretion-profile-of-mesenchymal-stromal-cells-is-determined-by-surface-structure-of-the-microenvironment
#5
Daniëlle G Leuning, Nick R M Beijer, Nadia A du Fossé, Steven Vermeulen, Ellen Lievers, Cees van Kooten, Ton J Rabelink, Jan de Boer
Mesenchymal stromal cells (MSC) secrete factors that contribute to organ homeostasis and repair in a tissue specific manner. For instance, kidney perivascular mesenchymal stromal cells (kPSCs) can facilitate renal epithelial repair through secretion of hepatocyte growth factor (HGF) while the secretome of bone marrow MSCs gives rise to immunosuppression. Stromal cells function in a complex 3-dimensional (3D) connective tissue architecture that induces conformational adaptation. Here we tested the hypothesis that surface topography and associated cell adaptations dictate stromal cell function through tuning of the cytokines released...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769197/cancer-associated-fibroblasts-drive-glycolysis-in-a-targetable-signaling-loop-implicated-in-head-and-neck-squamous-cell-carcinoma-progression
#6
Dhruv Kumar, Jacob New, Vikalp Vishwakarma, Radhika Joshi, Jonathan Enders, Fangchen Lin, Sumana Dasari, Wade R Gutierrez, George Leef, Sivapriya Ponnurangam, Hemantkumar Chavan, Lydia Ganaden, Mackenzie M Thornton, Hongying Dai, Ossama Tawfik, Jeffrey Straub, Yelizaveta Shnayder, Kiran Kakarala, Terance Ted Tsue, Douglas A Girod, Bennett Van Houten, Shrikant Anant, Partha Krishnamurthy, Sufi Mary Thomas
Despite aggressive therapies, head and neck squamous cell carcinoma (HNSCC) is associated with a less than 50% 5-year survival rate. Late stage HNSCC frequently consists of up to 80% cancer-associated fibroblasts (CAF). We previously reported that CAF-secreted hepatocyte growth factor (HGF) facilitates HNSCC progression, however very little is known about the role of CAFs in HNSCC metabolism. Here we demonstrate that CAF-secreted HGF increases extracellular lactate levels in HNSCC via upregulation of glycolysis...
May 16, 2018: Cancer Research
https://www.readbyqxmd.com/read/29766337/a-phase-i-trial-to-determine-safety-and-pharmacokinetics-of-aslan002-an-oral-met-superfamily-kinase-inhibitor-in-patients-with-advanced-or-metastatic-solid-cancers
#7
Aflah Roohullah, Adam Cooper, Anna J Lomax, Jennifer Aung, Alan Barge, Lilian Chow, Mark McHale, Jayesh Desai, James R Whittle, Ben Tran, Paul de Souza, Lisa G Horvath
Background The MET tyrosine kinase and its ligand, hepatocyte growth factor (HGF) also known as scatter factor, are associated with tumourigenesis and metastasis by promotion of scattering, proliferation, angiogenesis, motility and invasion. ASLAN-002 is a potent inhibitor of MET as well as related kinases. A phase I dose escalation study was conducted to determine the safety and pharmacokinetics of ASLAN-002 in patients with advanced cancer. Methods Patients with advanced or metastatic solid tumours, who had progressed on standard therapy or for whom standard therapy was not known, were administered ASLAN-002 orally...
May 16, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29763904/treatment-of-cutaneous-ulcers-with-multilayered-mixed-sheets-of-autologous-fibroblasts-and-peripheral-blood-mononuclear-cells
#8
Takahiro Mizoguchi, Koji Ueno, Yuriko Takeuchi, Makoto Samura, Ryo Suzuki, Tomoaki Murata, Tohru Hosoyama, Noriyasu Morikage, Kimikazu Hamano
BACKGROUND/AIMS: We have developed a mixed-cell sheet consisting of autologous fibroblasts and peripheral blood mononuclear cells with a high potency for angiogenesis and wound healing against refractory cutaneous ulcers in mouse and rabbit models. To increase the effectiveness of the mixed sheet, we developed a multilayered mixed sheet. METHODS: We assessed the therapeutic effects of multilayered sheets on cutaneous ulcers in mice. Growth factors and chemokines were assessed by enzyme-linked immunosorbent assay...
May 10, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29758331/liver-regeneration-requires-yap1-tgf%C3%AE-dependent-epithelial-mesenchymal-transition-in-hepatocytes
#9
Seh-Hoon Oh, Marzena Swiderska-Syn, Mark L Jewell, Richard T Premont, Anna Mae Diehl
BACKGROUND: Chronic failure of mechanisms that promote effective regeneration of dead hepatocytes causes replacement of functional hepatic parenchyma with fibrous scar and ultimately results in cirrhosis. Therefore, defining and optimizing mechanisms that orchestrate effective regeneration might prevent cirrhosis. We hypothesized that effective regeneration of injured livers requires hepatocytes to evade the growth inhibitory actions of TGF-β since TGF-β signaling inhibits mature hepatocyte growth but drives cirrhosis pathogenesis...
May 11, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29749459/ctrp9-ameliorates-cellular-senescence-via-pgc%C3%A2-1%C3%AE-ampk-signaling-in-mesenchymal-stem-cells
#10
Qun Li, Zhangzhang Zhu, Chengde Wang, Lin Cai, Jianglong Lu, Yongchun Wang, Jiadong Xu, Zhipeng Su, Weiming Zheng, Xianbin Chen
Stroke is the second most common cause of death worldwide, and thus, it imposes great financial burdens on both individuals and society. Mesenchymal stem cell (MSC) therapy is a promising approach for ischemic brain injury. However, MSC treatment potential is progressively reduced with age, limiting their therapeutic efficacy for brain repair post‑stroke. C1q and tumor necrosis factor‑related protein 9 (CTRP9) is a novel cytoprotective cytokine with antioxidant effects, which is highly expressed in brain tissue...
May 9, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29741444/isoquercitrin-ingredients-in-tetrastigma-hemsleyanum-diels-et-gilg-inhibits-hepatocyte-growth-factor-scatter-factor-induced-tumor-cell-migration-and-invasion
#11
Geng-Shou Xia, Shu-Hong Li, Wu Zhou
Aberrant activation of hepatocyte growth factor/scatter factor (HGF/SF) and its receptor, Met, is involved in the development and progression of many human cancers. In the screening assay of extracts from the root tuber of Tetrastigma hemsleyanum Diels et Gilg, isoquercitrin inhibited HGF/SF-Met signaling as indicated by its inhibitory activity on HGF/SF-induced cell scattering. Further analysis revealed that isoquercitrin specifically inhibited HGF/SF-induced tyrosine phosphorylation of Met. We also found that isoquercitrin decreased HGF-induced migration and invasion by parental or HGF/SF-transfected bladder carcinoma cell line NBT-II cells...
May 9, 2018: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/29740493/bioinformatic-analysis-and-prediction-of-the-function-and-regulatory-network-of-long-non-coding-rnas-in-hepatocellular-carcinoma
#12
Ming-Rong Cao, Ze-Ping Han, Ji-Ming Liu, Yu-Guang Li, Yu-Bing Lv, Jia-Bin Zhou, Jin-Hua He
Computational analysis and bioinformatics have significantly advanced the ability of researchers to process and analyze biological data. Molecular data from human and model organisms may facilitate drug target validation and identification of biomarkers with increased predictive accuracy. The aim of the present study was to investigate the function of long non-coding RNAs (lncRNAs) in hepatocellular carcinoma (HCC) using online databases, and to predict their regulatory mechanism. HCC-associated lncRNAs, their downstream transcription factors and microRNAs (miRNAs/miRs), as well as the HCC-associated target genes, were identified using online databases...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29738777/heme-oxygenase-1-inhibitor-tin-protoporphyrin-improves-liver-regeneration-after-partial-hepatectomy
#13
Monica Pibiri, Vera Piera Leoni, Luigi Atzori
AIMS: This study investigates the effects of the heme oxygenase-1 (HO-1) inhibitor tin protoporphyrin IX (SnPP), on rat liver regeneration following 2/3 partial hepatectomy (PH) in order to clarify the controversial role of HO-1 in the regulation of cellular growth. MAIN METHODS: Male Wistar rats received a subcutaneous injection of either SnPP (10 μmoles/kg body weight) or saline 12 h before PH and 0, 12 and 24 h after surgery. Rats were killed from 0.5 to 36 h after PH...
May 5, 2018: Life Sciences
https://www.readbyqxmd.com/read/29737948/heat-stress-and-hepatic-laser-thermal-ablation-induce-hepatocellular-carcinoma-growth-role-of-pi3k-mtor-akt-signaling
#14
Danielle E Jondal, Scott M Thompson, Kim A Butters, Bruce E Knudsen, Jill L Anderson, Rickey E Carter, Lewis R Roberts, Matthew R Callstrom, David A Woodrum
Purpose To determine if heat stress and hepatic laser thermal ablation induce hepatocellular carcinoma (HCC) growth and to identify growth factors induced by heat stress. Materials and Methods Non-heat-stressed HCC cells were cocultured with HCC cells or hepatocytes that were heat stressed at 37°C (physiologic), 45°C (moderate), or 50°C (severe) for 10 minutes and proliferation monitored with bioluminescence imaging for up to 6 days after heat stress (three experiments). Rats bearing orthotopic N1S1 HCC were randomly assigned to undergo immediate sham or laser thermal (3 W for 60 or 90 seconds; hereafter, 3W×60s and 3W×90s, respectively) ablation of the median (local) or left (distant) hepatic lobe, and tumor growth was monitored with magnetic resonance imaging for up to 18 days after ablation (six or more rats per group)...
May 8, 2018: Radiology
https://www.readbyqxmd.com/read/29735799/therapeutic-effect-of-hgf-on-nash-mice-through-hgf-c-met-and-jak2-stat3-signalling-pathway
#15
Ning Li, Zhangfeng Dou, Jinchun Liu, Bao Chai, Yue Li, Xiuqin An, Peiling Chu, Xiaolan Zhang
INTRODUCTION AND AIM: Hepatocyte growth factor (HGF) has been shown to ameliorate liver inflammation and fibrosis; however, the mechanism underlying its effects in non-alcoholic steatohepatitis (NASH) is unclear. This study aimed to analyse the relationship between the JAK2-STAT3 signalling pathway and the ameliorating effect of HGF on NASH. MATERIAL AND METHODS: Mice were fed a high-fat diet (HFD) for 16 weeks, and then plasma and hepatic tissues were collected...
April 9, 2018: Annals of Hepatology
https://www.readbyqxmd.com/read/29735435/-tumor-necrosis-factor-%C3%AE-and-transforming-growth-factor-%C3%AE-1-balance-liver-stem-cell-differentiation-in-cholestatic-cirrhosis
#16
Bo Yang, Qing Luo, Quan Kang, Jian Wang, Cheng Xiao, Zhi-Peng Li, Meng-Jia Gong, Yang Bi
OBJECTIVE: To investigate the changes of tumor necrosis factor-α (TNF-α) and transforming growth factor-β1 (TGF-β1 ) in mice with cholestatic cirrhosis and their role in regulating the balance of liver stem cell differentiation. METHODS: Balb/c mice were subjected to bile duct ligation (BDL), and serum biochemical parameters were measured and hepatic histopathology was observed using HE staining to evaluate the modeling of cholestatic cirrhosis. Immunohistochemistry and Western blotting were used to detect the changes of TNF-α and TGF-β1 in the mice after modeling...
April 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29731780/lung-mesenchymal-stem-cells-ameliorate-elastase-induced-damage-in-an-animal-model-of-emphysema
#17
Donato Cappetta, Antonella De Angelis, Giuseppe Spaziano, Gioia Tartaglione, Elena Piegari, Grazia Esposito, Loreta Pia Ciuffreda, Angela Liparulo, Manuela Sgambato, Teresa Palmira Russo, Francesco Rossi, Liberato Berrino, Konrad Urbanek, Bruno D'Agostino
Pulmonary emphysema is a respiratory condition characterized by alveolar destruction that leads to airflow limitation and reduced lung function. Although with extensive research, the pathophysiology of emphysema is poorly understood and effective treatments are still missing. Evidence suggests that mesenchymal stem cells (MSCs) possess the ability to engraft the injured tissues and induce repair via a paracrine effect. Thus, the aim of this study was to test the effects of the intratracheal administration of lung-derived mouse MSCs in a model of elastase-induced emphysema...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29731771/undifferentiated-adipose-tissue-stem-cell-transplantation-promotes-hepatic-regeneration-ameliorates-histopathologic-damage-of-the-liver-and-upregulates-the-expression-of-liver-regeneration-and-liver-specific-genes-in-a-rat-model-of-partial-hepatectomy
#18
Konstantinos G Apostolou, Ioannis G Papanikolaou, Charalampos Katselis, Themistoklis Feretis, Dimitrios Kletsas, Manousos M Konstadoulakis, Maria Lymperi, Angelica A Saetta, Spiros Tsikalakis, George Agrogiannis, Efstratios Patsouris, George C Zografos, Apostolos E Papalois
Objective: Adipose tissue stem cells (ADSCs) present a promising therapeutic method to alleviate liver failure (LF). The purpose of this prospective study was to evaluate the efficacy of undifferentiated ADSC transplantation on liver regeneration and on the expression of liver regeneration- and liver-specific genes, following 60% partial hepatectomy (PHx). Methods: Sixty female rats were subjected to PHx and were transplanted with 106 or 2 × 106 ADSCs, either into the portal vein (PV) or into the hepatic parenchyma...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29730296/fgf21-mediates-the-protective-effect-of-fenofibrate-against-acetaminophen-induced-hepatotoxicity-via-activating-autophagy-in-mice
#19
Yi Zhang, Yingying Pan, Rongrong Xiong, Jujia Zheng, Qianyao Li, Saisai Zhang, Xiaokun Li, Xuebo Pan, Shulin Yang
Overdose of acetaminophen (APAP) induces acute liver injury due in part to destruction of mitochondria and resulted oxidative stress. Recently, FGF21 has been demonstrated to be an endocrine factor to protect liver from oxidative stress. The aim of present study is to explore the role of fibroblast growth factor 21 (FGF21) in the protective effect of fenofibrate, an agonist of peroxisome proliferator-activated receptor alpha (PPARα), against acetaminophen (APAP)-induced liver injury. Mice and primary cultured hepatocytes were used to test the potential hepatoprotective effect of fenofibrate against APAP-induced hepatotoxicity...
May 3, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29728912/effect-of-cryopreservation-on-the-appearance-and-liver-function-of-hepatocyte-like-cells-in-cultures-of-cirrhotic-liver-of-biliary-atresia
#20
Taisuke Yamazaki, Shin Enosawa, Takayoshi Tokiwa
Previously, we reported that non-parenchymal cell (NPC) fractions from cirrhotic liver of biliary atresia (BA) may contain stem/progenitor cells, and clusters of hepatocyte-like cells appear via hepatocyte growth factor/c-Met signaling in primary cultures of NPCs. BA is a rare and serious liver disease, and procurement of BA cells is difficult. Therefore, cryopreservation of BA liver cells is an unavoidable challenge. In this study, we examined the appearance and liver function of hepatocyte-like cells in cultures of BA liver-derived NPC fractions after cryopreservation for 1 or 6 mo using a chemically defined cryopreservation solution, STEM-CELLBANKER...
May 4, 2018: In Vitro Cellular & Developmental Biology. Animal
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