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Hepatocyte growth factor

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https://www.readbyqxmd.com/read/28931787/heparin-induces-the-mobilization-of-heart-derived-multipotent-mesoangioblasts-during-cardiac-surgery-with-cardiopulmonary-bypass-or-cardiac-catheterization
#1
Yoshihiro Hata, Masayoshi Iwasaki, Keisuke Fujitaka, Haengnam Park, Daisuke Sato, Chiharu Enoki, Naoki Minato, Keita Horitani, Miyuki Nakano, Hiroshi Kishimoto, Kensaku Wada, Masamichi Koyanagi, Yasushi Adachi, Yoshihiro Yamamoto, Andreas M Zeiher, Stefanie Dimmeler, Ichiro Shiojima
BACKGROUND: We previously identified circulating mesoangioblasts (cMABs), a subset of mesenchymal stem cells that express cardiac mesodermal markers, in patients undergoing cardiac surgery with cardiopulmonary bypass (CPB). We also found that hepatocyte growth factor (HGF) is upregulated during cardiac surgery with CPB in humans, and induces MAB-like cell mobilization in rodents. These results strongly suggest that heparin induced MAB mobilization via HGF upregulation. Here, we tested this hypothesis in patients undergoing cardiac surgery or cardiac catheterization...
September 21, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28928809/nedd4-promotes-cell-growth-and-migration-via-pten-pi3k-akt-signaling-in-hepatocellular-carcinoma
#2
Zhi-Jun Huang, Jun-Jun Zhu, Xiao-Yu Yang, Ewelina Biskup
The novel E3 ubiquitin-protein ligase neural precursor cell-expressed developmentally downregulated protein 4 (NEDD4) has been implicated as a crucial factor promoting the tumorigenesis of several types of cancer. The present study investigated the oncogenic role of NEDD4 in hepatocellular carcinoma (HCC) by targeted small interfering RNA silencing of the tumor suppressor phosphatase and tensin homolog (PTEN). Using normal hepatocyte and HCC cell lines, the influence of NEDD4 depletion on proliferation and migration as well as on the PTEN/phosphatidylinositol-3-kinase/protein kinase B signaling pathway was assessed...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28923883/microtubules-associated-rac-regulation-of-endothelial-barrier-a-role-of-asef-in-acute-lung-injury
#3
Pratap Karki, Anna A Birukova
The endothelial barrier function regulated by the cytoskeletal reorganizations has been implicated in the pathogenesis of multiple lung diseases including asthma, sepsis, edema, and acute respiratory distress syndrome. The extensive studies have established that activation of small GTPase Rac is a key mechanism in endothelial barrier protection but the role of microtubules-associated Rac in the endothelial functions remains poorly understood. With the emerging evidences that microtubules disassembly also plays a critical role in actin cytoskeleton remodeling leading to endothelial permeability, the knowledge on microtubules-mediated regulation of endothelial barrier is imperative to better understand the etiology of lung injuries as well as to develop novel therapeutics against these disorders...
September 18, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28923372/in-vitro-tubulogenesis-of-madin-darby-canine-kidney-mdck-spheroids-occurs-depending-on-constituent-cell-number-and-scaffold-gel-concentration
#4
Tsuyoshi Hirashima, Miho Hoshuyama, Taiji Adachi
In vitro tubulogenesis has been employed as an experimental model system to study tissue morphogenesis of internal organs. It has been previously shown that Madin-Darby canine kidney (MDCK) cells form tubes in the presence of hepatocyte growth factor in 3D cultures. Although these cells are expected to form tube structures in some microenvironments independent of chemical stimulation, little is known about the cellular mechanisms in organizing such an anisotropic multicellular structure. Here, we report 3D culture conditions that induce MDCK tubulogenesis without growth factor stimulation...
September 15, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28922541/effects-of-collagen-peptides-intake-on-skin-ageing-and-platelet-release-in-chronologically-aged-mice-revealed-by-cytokine-array-analysis
#5
Hongdong Song, Ling Zhang, Yongkang Luo, Siqi Zhang, Bo Li
Action mechanisms underlying various biological activities of collagen peptides (CPs) remained to be elucidated. Cytokines may play an important role in mediating these health benefits of CPs. This study aimed to systemically examine the cytokines in skin and blood regulated by CPs intake. Thirteen-month-old female Kunming mice were administered with CPs for 2 months (0 or 400 mg/kg bodyweight/day). The cytokines in skin and plasma were analysed using a 53-cytokine array and corresponding ELISA kits. In skin, CPs intake significantly down-regulated placenta growth factor (PIGF-2), insulin-like growth factor (IGF)-binding protein (IGFBP) -2 and IGFBP-3, and up-regulated platelet factor 4 (PF4), serpin E1 and transforming growth factor (TGF)-β1 ...
September 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28918026/anti-fibrotic-effects-of-synthetic-oligodeoxynucleotide-for-tgf-%C3%AE-1-and-smad-in-an-animal-model-of-liver-cirrhosis
#6
Jung-Yeon Kim, Hyun-Jin An, Woon-Hae Kim, Mi-Gyeong Gwon, Hyemin Gu, Yoon-Yub Park, Kwan-Kyu Park
Liver fibrosis is characterized by changes in tissue architecture and extracellular matrix composition. Liver fibrosis affects not only hepatocytes but also the non-parenchymal cells such as hepatic stellate cells (HSCs), which are essential for maintaining an intact liver structure and function. Transforming growth factor β1 (TGF-β1) is a multifunctional cytokine that induces liver fibrosis through activation of Smad signaling pathways. To improve a new therapeutic approach, synthetic TGF-β1/Smad oligodeoxynucleotide (ODN) was used to suppress both TGF-β1 expression and Smad transcription factor using a combination of antisense ODN and decoy ODN...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28916740/mad2b-acts-as-a-negative-regulatory-partner-of-tcf4-on-proliferation-in-human-dermal-papilla-cells
#7
Nanlan Yu, Zhiqiang Song, Kezhou Zhang, Xichuan Yang
Dermal papilla cells (DPCs) are important components of hair follicles and play a critical role in hair follicle development. However, the mechanisms by which DPCs induce hair follicle development remain unclear. In the present study, we identified the mitotic arrest deficient protein MAD2B as a modifier of DPCs. Overexpression of MAD2B inhibited DPC aggregative growth and proliferation induced by the Wnt signaling activator T cell factor 4 (TCF4), and decreased TCF4-induced expression and the release of hair growth-related cytokines, including hepatocyte growth factor, insulin-like growth factor-1, and vascular endothelial growth factor in DPCs...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28915633/selection-of-optimal-molecular-targets-for-tumor-specific-imaging-in-pancreatic-ductal-adenocarcinoma
#8
Willemieke S Tummers, Arantza Farina-Sarasqueta, Martin C Boonstra, Hendrica A Prevoo, Cornelis F Sier, Jan S Mieog, Johannes Morreau, Casper H van Eijck, Peter J Kuppen, Cornelis J van de Velde, Bert A Bonsing, Alexander L Vahrmeijer, Rutger-Jan Swijnenburg
Discrimination of pancreatic ductal adenocarcinoma (PDAC) from chronic pancreatitis (CP) or peritumoral inflammation is challenging, both at preoperative imaging and during surgery, but it is crucial for proper therapy selection. Tumor-specific molecular imaging aims to enhance this discrimination and to help select and stratify patients for resection. We evaluated various biomarkers for the specific identification of PDAC and associated lymph node metastases. Using immunohistochemistry (IHC), expression levels and patterns were investigated of integrin αvβ6, carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5), Cathepsin E (Cath E), epidermal growth factor receptor (EGFR), hepatocyte growth factor receptor (c-MET), thymocyte differentiation antigen 1 (Thy1), and urokinase-type plasminogen activator receptor (uPAR)...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915606/proteolytic-cleavages-in-the-extracellular-domain-of-receptor-tyrosine-kinases-by-membrane-associated-serine-proteases
#9
Li-Mei Chen, Karl X Chai
The epithelial extracellular membrane-associated serine proteases matriptase, hepsin, and prostasin are proteolytic modifying enzymes of the extracellular domain (ECD) of the epidermal growth factor receptor (EGFR). Matriptase also cleaves the ECD of the vascular endothelial growth factor receptor 2 (VEGFR2) and the angiopoietin receptor Tie2. In this study we tested the hypothesis that these serine proteases may cleave the ECD of additional receptor tyrosine kinases (RTKs). We co-expressed the proteases in an epithelial cell line with Her2, Her3, Her4, insulin receptor (INSR), insulin-like growth factor I receptor (IGF-1R), the platelet-derived growth factor receptors (PDGFRs) α and β, or nerve growth factor receptor A (TrkA)...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915576/hepatic-b-cell-leukemia-3-suppresses-chemically-induced-hepatocarcinogenesis-in-mice-through-altered-mapk-and-nf-%C3%AE%C2%BAb-activation
#10
Nadine Gehrke, Marcus A Wörns, Amrit Mann, Yvonne Huber, Nadine Hoevelmeyer, Thomas Longerich, Ari Waisman, Peter R Galle, Jörn M Schattenberg
The transcriptional nuclear factor kappa B (NF-κB)-coactivator B cell leukemia-3 (Bcl-3) is a molecular regulator of cell death and proliferation. Bcl-3 has been shown to be widely expressed in different cancer types including hepatocellular carcinoma (HCC). Its influence on hepatocarcinogenesis is still undetermined. To examine the role of Bcl-3 in hepatocarcinogenesis mice with hepatocyte-specific overexpression of Bcl-3 (Bcl-3(Hep)) were exposed to diethylnitrosamine (DEN) and phenobarbital (PB). Hepatic Bcl-3 overexpression attenuated DEN/PB-induced hepatocarcinogenesis...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28911141/glucagon-decreases-igf-1-bioactivity-in-humans-independently-of-insulin-by-modulating-its-binding-proteins
#11
Zeinab Sarem, Christiane Bumke-Vogt, Ayman M Mahmoud, Biruhalem Assefa, Martin O Weickert, Aikatarini Adamidou, Volker Bähr, Jan Frystyk, Matthias Möhlig, Joachim Spranger, Stefanie Lieske, Andreas L Birkenfeld, Andreas F H Pfeiffer, Ayman M Arafat
Context: Depending on its lipolytic activity, glucagon plays a promising role in obesity treatment. Glucagon-induced growth hormone (GH) release can promote its effect on lipid metabolism, although the underlying mechanisms have not been well-defined. Objective: The present study highlights the glucagon effect on the GH/insulinlike growth factor 1 (IGF-1)/IGF-binding protein (IGFBP) axis in vivo and in vitro, taking into consideration insulin as a confounding factor...
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28902178/tumor-inhibitory-effect-of-ircr201-a-novel-cross-reactive-c-met-antibody-targeting-the-psi-domain
#12
Hyunkyu Park, Donggeon Kim, Eunmi Kim, Jason K Sa, Hee Won Lee, Suji Yu, Jiwon Oh, Seok-Hyung Kim, Yeup Yoon, Do-Hyun Nam
Hepatocyte growth factor receptor (HGFR, c-Met) is an essential member of the receptor tyrosine kinase (RTK) family that is often dysregulated during tumor progression, driving a malignant phenotypic state and modulating important cellular functions including tumor growth, invasion, metastasis, and angiogenesis, providing a strong rationale for targeting HGF/c-Met signaling axis in cancer therapy. Based on its protumorigenic potentials, we developed IRCR201, a potent antagonistic antibody targeting the plexin-semaphorin-integrin (PSI) domain of c-Met, using synthetic human antibody phage libraries...
September 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28901439/long-noncoding-rna%C3%A2-p21-modulates-cellular-senescence-via-the-wnt-%C3%AE-%C3%A2-catenin-signaling-pathway-in-mesenchymal-stem-cells
#13
Wenzheng Xia, Lei Zhuang, Xia Deng, Meng Hou
Mesenchymal stem cell (MSC)‑based therapies have demonstrated efficacy in animal models of cardiovascular diseases. However, MSCs decrease in quantity and quality with age, which reduces their capacity for damage repair. Long noncoding (lnc) RNAs regulate gene transcription and the fate of post‑transcriptional mRNA, affecting a broad range of age‑associated physiological and pathological conditions, including cardiovascular disease and cancer cell senescence. However, the functional role of lncRNAs in stem cell senescence remains largely unknown...
September 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28898507/growth-differentiation-factor-15-predicts-advanced-fibrosis-in-biopsy-proven-non-alcoholic-fatty-liver-disease
#14
Bo Kyung Koo, Sung Hee Um, Dong Soo Seo, Sae Kyung Joo, Jeong Mo Bae, Jeong Hwan Park, Mee Soo Chang, Jung Ho Kim, Jieun Lee, Won-Il Jeong, Won Kim
BACKGROUND & AIMS: We explored whether growth differentiation factor 15 (GDF15) affects the histological severity of non-alcoholic fatty liver disease (NAFLD) independent of insulin resistance. METHODS: In a biopsy-proven NAFLD cohort, we measured serum GDF15 levels using enzyme-linked immunosorbent assays. RESULTS: Among 190 subjects (mean age, 53±14 years; men, 52.1%), 72 (men, 65.3%) and 78 (men, 44.9%) were diagnosed with biopsy-proven non-alcoholic fatty liver (NAFL) and non-alcoholic steatohepatitis (NASH), respectively...
September 12, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28895862/immunomodulatory-effects-of-soluble-factors-secreted-by-feline-adipose-tissue-derived-mesenchymal-stem-cells
#15
Hyung-Kyu Chae, Woo-Jin Song, Jin-Ok Ahn, Qiang Li, Bo-Yeon Lee, Kyeong Kweon, Sang-Chul Park, Hwa-Young Youn
Mesenchymal stem cells (MSCs) have immunomodulatory functions and differentiation capacity, and their clinical use is increasing in veterinary species. Although MSCs have been applied in the treatment in various inflammatory diseases, mechanistic research on feline MSCs is lacking. Accordingly, in this study, we aimed to investigate the immunomodulatory mechanisms of MSCs isolated from feline adipose tissue (fATMSCs). fATMSCs from healthy cats were cultured in an appropriate manner and cocultured with transwell-separated allogeneic feline peripheral blood mononuclear cells (fPBMCs) and RAW264...
September 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28895412/predictive-values-of-fap-and-hgf-for-tumor-angiogenesis-and-metastasis-in-colorectal-cancer
#16
T H Ma, C C Gao, R Xie, X Z Yang, W J Dai, J L Zhang, W Yan, S N Wu
This study aims to explore the correlation of hepatocyte growth factor (HGF) and fibroblast activation protein (FAP) expressions with the angiogenesis and metastasis in colorectal cancer (CRC). The immunohistochemical SABC method was used to detect HGF and FAP expressions in 127 CRC tissues, 51 colorectal polyp tissues and 28 normal tissues. HGF and FAP expressions in liver metastasis were detected using western blot to analyze the correlation of their expressions with lymph node metastasis and liver metastasis...
September 12, 2017: Neoplasma
https://www.readbyqxmd.com/read/28893403/energy-restriction-affect-liver-development-in-hu-sheep-ram-lambs-through-hippo-signaling-pathway
#17
Ting-Ting Zhang, Guo-Min Zhang, Yu-Hang Jin, Yi-Xuan Guo, Zhen Wang, Yi-Xuan Fan, M A El-Samahy, Feng Wang
This study aimed to evaluate the effects of dietary energy restriction on postnatal liver development in Hu sheep ram lambs. A total of 16 ram lambs were randomly divided into two groups: 100% energy requirements diet and 55% energy requirements diet, which were fed for 75 d. Results showed that the final body and liver weights decreased with energy restriction (p <0.05). Energy restriction caused a significant decrease in the levels of circulating insulin-like growth factor 1 (IGF1) and an increase in growth hormone secretion (p <0...
September 2, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28890386/co-targeting-c-met-and-dna-double-strand-breaks-dsbs-therapeutic-strategies-in-brca-mutated-gastric-carcinomas
#18
REVIEW
Chrysovalantou Mihailidou, Michalis V Karamouzis, Dimitrios Schizas, Athanasios G Papavassiliou
Gastric cancer (GC) is a threatening malignancy characterized by heterogeneity. Current therapies use DNA damaging agents, for example, chemotherapeutic agents and ionizing radiation (IR). However, a significant portion of GC patients develops therapeutic resistance to DNA damage response (DDR) - inducing agents. An important mechanism is the stimulation of the c-MET RTK, which is a tyrosine kinase receptor and its ligand hepatocyte growth factor (HGF), which facilitates cell survival by boosting DNA damage repair pathways and via escaping cell cycle arrest...
September 7, 2017: Biochimie
https://www.readbyqxmd.com/read/28890072/large-scale-quantitative-proteomics-identifies-the-ubiquitin-ligase-nedd4-1-as-an-essential-regulator-of-liver-regeneration
#19
Marc Bachofner, Tobias Speicher, Roman L Bogorad, Sukalp Muzumdar, Carina P Derrer, Fabrizio Hürlimann, Friederike Böhm, Paolo Nanni, Tobias Kockmann, Ekaterina Kachaylo, Michael Meyer, Susagna Padrissa-Altés, Rolf Graf, Daniel G Anderson, Victor Koteliansky, Ulrich Auf dem Keller, Sabine Werner
The liver is the only organ in mammals that fully regenerates even after major injury. To identify orchestrators of this regenerative response, we performed quantitative large-scale proteomics analysis of cytoplasmic and nuclear fractions from normal versus regenerating mouse liver. Proteins of the ubiquitin-proteasome pathway were rapidly upregulated after two-third hepatectomy, with the ubiquitin ligase Nedd4-1 being a top hit. In vivo knockdown of Nedd4-1 in hepatocytes through nanoparticle-mediated delivery of small interfering RNA caused severe liver damage and inhibition of cell proliferation after hepatectomy, resulting in liver failure...
August 30, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28881825/development-of-hepatocellular-cancer-induced-by-long-term-low-fat-high-carbohydrate-diet-in-a-nafld-nash-mouse-model
#20
Alessandra Tessitore, Valentina Mastroiaco, Antonella Vetuschi, Roberta Sferra, Simona Pompili, Germana Cicciarelli, Remo Barnabei, Daria Capece, Francesca Zazzeroni, Carlo Capalbo, Edoardo Alesse
Nonalcoholic fatty liver disease (NAFLD) is a common chronic liver disease. It can progress to nonalcoholic steatohepatitis (NASH) and, in a percentage of cases, to hepatocarcinogenesis. The strong incidence in western countries of obesity and metabolic syndrome, whose NAFLD is the hepatic expression, is thought to be correlated to consumption of diets characterized by processed food and sweet beverages. Previous studies described high-fat diet-induced liver tumors. Conversely, the involvement of low-fat/high-carbohydrate diet in the progression of liver disease or cancer initiation has not been described yet...
August 8, 2017: Oncotarget
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