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https://www.readbyqxmd.com/read/29163456/mir-194-inhibits-innate-antiviral-immunity-by-targeting-fgf2-in-influenza-h1n1-virus-infection
#1
Keyu Wang, Chengcai Lai, Hongjing Gu, Lingna Zhao, Min Xia, Penghui Yang, Xiliang Wang
Fibroblast growth factor 2 (FGF2 or basic FGF) regulates a wide range of cell biological functions including proliferation, angiogenesis, migration, differentiation, and injury repair. However, the roles of FGF2 and the underlying mechanisms of action in influenza A virus (IAV)-induced lung injury remain largely unexplored. In this study, we report that microRNA-194-5p (miR-194) expression is significantly decreased in A549 alveolar epithelial cells (AECs) following infection with IAV/Beijing/501/2009 (BJ501)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29159825/modulation-of-the-intestinal-bile-acid-fxr-fgf15-axis-improves-alcoholic-liver-disease-in-mice
#2
Phillipp Hartmann, Katrin Hochrath, Angela Horvath, Peng Chen, Caroline T Seebauer, Cristina Llorente, Lirui Wang, Yazen Alnouti, Derrick E Fouts, Peter Stärkel, Rohit Loomba, Sally Coulter, Christopher Liddle, Ruth T Yu, Lei Ling, Stephen J Rossi, Alex M DePaoli, Michael Downes, Ronald M Evans, David A Brenner, Bernd Schnabl
Alcoholic liver disease is associated with changes in the intestinal microbiota. Functional consequences of alcohol-associated dysbiosis are largely unknown. The aim of this study was to identify a mechanism of how changes in the intestinal microbiota contribute to alcoholic liver disease. Metagenomic sequencing of intestinal contents demonstrated that chronic ethanol feeding in mice is associated with an overrepresentation of bacterial genomic DNA encoding choloylglycine hydrolase, which deconjugates bile acids in the intestine...
November 21, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29158443/fox-and-ets-family-transcription-factors-regulate-the-pigment-cell-lineage-in-planarians
#3
Xinwen He, Nicole Lindsay-Mosher, Yan Li, Alyssa M Molinaro, Jason Pellettieri, Bret J Pearson
Many pigment cells acquire unique structural properties and gene expression profiles during animal development. The underlying differentiation pathways have been well characterized in cells formed during embryogenesis, such as the neural crest-derived melanocyte. However, much less is known about the developmental origins of pigment cells produced in adult organisms during tissue homeostasis and repair. Here we report a lineage analysis of ommochrome- and porphyrin-producing cells in the brown, freshwater planarian Schmidtea mediterranea Using an RNA-sequencing approach, we identified two classes of markers expressed in sequential fashion when new pigment cells are generated during regeneration or in response to pigment cell ablation...
November 20, 2017: Development
https://www.readbyqxmd.com/read/29158353/blood-pressure-control-by-a-secreted-fgfbp1-fibroblast-growth-factor-binding-protein
#4
Elena Tassi, En Yin Lai, Lingli Li, Glenn Solis, Yifan Chen, William E Kietzman, Patricio E Ray, Anna T Riegel, William J Welch, Christopher S Wilcox, Anton Wellstein
Fibroblast growth factors (FGFs) participate in organ development and tissue maintenance, as well as the control of vascular function. The paracrine-acting FGFs are stored in the extracellular matrix, and their release is controlled by a secreted FGF-binding protein (FGF-BP, FGFBP1, and BP1) that modulates FGF receptor signaling. A genetic polymorphism in the human FGFBP1 gene was associated with higher gene expression and an increased risk of familial hypertension. Here, we report on the effects of inducible BP1 expression in a transgenic mouse model...
November 20, 2017: Hypertension
https://www.readbyqxmd.com/read/29158323/fgf8-morphogen-gradients-are-differentially-regulated-by-heparan-sulphotransferases-hs2st-and-hs6st1-in-the-developing-brain
#5
Wai-Kit Chan, David J Price, Thomas Pratt
Fibroblast growth factor (FGF) morphogen signalling through the evolutionarily ancient Extracellular signaling Regulated Kinase/Mitogen Activated Protein Kinase (ERK/MAPK) pathway recurs in many neural and non-neural developmental contexts and understanding the mechanisms that regulate FGF/ERK function are correspondingly important. The glycosaminoglycan heparan sulphate (HS) binds to FGFs and exists in an enormous number of differentially sulphated forms produced by the action of HS modifying enzymes so has the potential to present an extremely large amount of information in FGF/ERK signalling...
November 20, 2017: Biology Open
https://www.readbyqxmd.com/read/29156557/the-invasive-region-of-glioblastoma-defined-by-5ala-guided-surgery-has-an-altered-cancer-stem-cell-marker-profile-compared-to-central-tumour
#6
Stuart J Smith, Mohammed Diksin, Saachi Chhaya, Shwetha Sairam, Maria A Estevez-Cebrero, Ruman Rahman
Glioblastoma, a WHO grade IV astrocytoma, is a highly aggressive and heterogeneous tumour that infiltrates deeply into surrounding brain parenchyma, making complete surgical resection impossible. Despite chemo-radiotherapy, the residual cell population within brain parenchyma post-surgery causes inevitable recurrence. Previously, the tumour core has been the focus of research and the basis for targeted therapeutic regimes, which have failed to improve survival in clinical trials. Here, we focus on the invasive margin as defined by the region with 5-aminolevulinic acid (5ALA) (GliolanTM) fluorescence at surgery beyond the T1 enhancing region on magnetic resonance imaging (MRI)...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29155277/neurotrophin-and-fgf-signaling-adapter-proteins-frs2-and-frs3-regulate-dentate-granule-cell-maturation-and-excitatory-synaptogenesis
#7
Sayan Nandi, Karina Alviña, Pablo J Lituma, Pablo E Castillo, Jean M Hébert
Dentate granule cells (DGCs) play important roles in cognitive processes. Knowledge about how growth factors such as FGFs and neurotrophins contribute to the maturation and synaptogenesis of DGCs is limited. Here, using brain-specific and germline mouse mutants we show that a module of neurotrophin and FGF signaling, the FGF Receptor Substrate (FRS) family of intracellular adapters, FRS2 and FRS3, are together required for postnatal brain development. In the hippocampus, FRS promotes dentate gyrus morphogenesis and DGC maturation during developmental neurogenesis, similar to previously published functions for both neurotrophins and FGFs...
November 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/29152117/fgf5-is-expressed-in-melanoma-and-enhances-malignancy-in-vitro-and-in-vivo
#8
Sara Ghassemi, Katharina Vejdovszky, Emine Sahin, Lukas Ratzinger, Karin Schelch, Thomas Mohr, Barbara Peter-Vörösmarty, Jelena Brankovic, Andreas Lackner, Alexandra Leopoldi, Diana Meindl, Christine Pirker, Balazs Hegedus, Brigitte Marian, Klaus Holzmann, Bettina Grasl-Kraupp, Petra Heffeter, Walter Berger, Michael Grusch
Although FGF5 mRNA was previously found expressed in some melanoma cell lines in contrast to normal human melanocytes, neither its contribution to melanoma growth nor its expression in melanoma tissue has been investigated. Here we demonstrate that ectopic overexpression of FGF5 in human melanoma cells with low endogenous FGF5 expression increased clonogenicity and invasion but not short-term growth in vitro. Silencing of FGF5 in melanoma cells with high endogenous FGF5 expression had the opposite effect on clonogenicity...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29152091/fibroblast-growth-factor-2-mediated-protection-of-cardiomyocytes-from-the-toxic-effects-of-doxorubicin-requires-the-mtor-nrf-2-ho-1-pathway
#9
Navid Koleini, Barbara E Nickel, Jie Wang, Zeinab Roveimiab, Robert R Fandrich, Lorrie A Kirshenbaum, Peter A Cattini, Elissavet Kardami
Background: Cardiotoxic side effects impose limits to the use of anti-tumour chemotherapeutic drugs such as doxorubicin (Dox). There is a need for cardioprotective strategies to prevent the multiple deleterious effects of Dox. Here, we examined the ability of administered fibroblast growth factor-2 (FGF-2), a cardioprotective protein that is synthesized as high and low molecular weight (Hi-, Lo-FGF-2) isoforms, to prevent Dox-induced: oxidative stress; cell death; lysosome dysregulation; and inactivation of potent endogenous protective pathways, such as the anti-oxidant/detoxification nuclear factor erythroid-2-related factor (Nrf-2), heme oxygenase-1 (HO-1) axis...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151155/intraurethral-injection-with-lps-an-effective-experimental-model-of-prostatic-inflammation
#10
Fabiana Oliveira Dos Santos Gomes, Amanda Costa Oliveira, Edlene Lima Ribeiro, Bruna Santos da Silva, Laise Aline Martins Dos Santos, Ingrid Tavares de Lima, Amanda Karolina Soares E Silva, Shyrlene Meiry da Rocha Araújo, Terezinha Gonçalves, Mario Ribeiro de Melo-Junior, Christina Alves Peixoto
OBJECTIVE: Chronic inflammation has been recognized as having a prominent role pathogenesis of benign prostatic hyperplasia (BPH) and cancer. It is believed that chronic inflammation induces prostatic fibromuscular growth. This correlation has been clearly illustrated by both in vivo and in vitro studies; however, current experimental models of BPH require complex surgery or hormonal treatment. Therefore, the aim of the present study was to propose a new murine model of BPH/prostatitis induced by intraurethral injection of LPS...
November 18, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29149966/seasonal-variation-of-vitamin-d-status-in-long-term-kidney-transplant-recipients
#11
J Wilimborek, M Nowicki, I Kurnatowska
BACKGROUND: There is little information about circannual rhythm of vitamin D level in kidney transplantation (KTx) patients. MATERIAL AND METHODS: In 71 patients (27 females; 44 males) in the long term after KTx (5.5 ± 2.6 years) during the winter and summer months plasma concentration of 25-hydroxyvitamin D (25(OH)D), 1,25-hydroxyvitamin D, parathormone (PTH), fibroblast growth factor 23 (FGF-23), calcium, and phosphorus were assessed. Vitamin D status was classified according to 25(OH)D level (ie, insufficiency, ≤30 ng/mL; deficiency, <15 ng/mL)...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29147074/increased-levels-of-srage-in-diabetic-ckd-g5d-patients-a-potential-protective-mechanism-against-age-related-upregulation-of-fibroblast-growth-factor-23-and-inflammation
#12
Elena Dozio, Valentina Corradi, Elena Vianello, Elisa Scalzotto, Massimo de Cal, Massimiliano Marco Corsi Romanelli, Claudio Ronco
Advanced glycation end products (AGEs) may induce cardiac remodeling in kidney disease by promoting fibroblast growth factor 23 (FGF-23) expression. Since AGEs are increased in diabetes mellitus (DM), our first aim was to evaluate the existence of any potential association between AGEs, FGF-23, inflammation, and increased cardiovascular risk in DM patients on dialysis (CKD-G5D). Secondarily, we explored the potential role of the soluble receptor for AGEs (sRAGE) as a marker of heart failure. Levels of glycated albumin (GA), sRAGE, c-terminal FGF-23 (cFGF-23), brain natriuretic peptide (BNP), and inflammatory mediators were compared between DM and non-DM CKD-G5D patients...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29143549/negative-impact-of-hyperglycaemia-on-mouse-alveolar-development
#13
Mei-Yao He, Guang Wang, Sha-Sha Han, Ke Li, Ya Jin, Meng Liu, Zhen-Peng Si, Ju Wang, Guo-Sheng Liu, Xuesong Yang
Diabetes mellitus in pregnancy has been known to affect the embryonic development of various systems, including cardiovascular and nervous systems. However, whether this disease could have a negative impact on embryonic respiratory system remains controversial. In this study, we demonstrated that pregestational diabetes mellitus (PGDM)-induced defects in lung development in mice are mainly characterized by the changes in the morphological structure of the lung. Immunostaining and Western blotting showed that proliferation increased and apoptosis decreased in PGDM...
November 16, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29143524/injectable-shear-thinning-caso4-fgf-18-incorporated-chitin-plga-hydrogels-enhances-bone-regeneration-in-mice-cranial-bone-defect-model
#14
Sivashanmugam Amirthalingam, Pornkawee Charoenlarp, Sankar Deepthi, ArunKumar Rajendran, Shantikumar V Nair, Sachiko Iseki, Rangasamy Jayakumar
For craniofacial bone regeneration, shear thinning injectable hydrogels are favoured over conventional scaffolds due to their improved defect margin adaptability, easier handling and ability to be injected manually into deeper tissues. The most accepted method, after autografting, is the use of recombinant human BMP-2; however, complications such as inter-individual variations, edema, and poor cost-efficiency in supraphysiological doses have been reported. The endogenous synthesis of BMP-2 is desirable, and a molecule which induces this is FGF-18 since it can up-regulate the BMP-2 expression and positively modulate other osteogenic genes...
November 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29139535/contribution-of-cranial-neural-crest-cells-to-mouse-skull-development
#15
Taofen Wu, Guiqian Chen, Fei Tian, Hong-Xiang Liu
The mammalian skull vault is a highly regulated structure that evolutionally protects brain growth during vertebrate development. It consists of several membrane bones with different tissue origins (e.g. neural crest-derived frontal bone and mesoderm-derived parietal bone). Although membrane bones are formed through intramembranous ossification, the neural crest-derived frontal bone has superior capabilities for osteoblast activities and bone regeneration via TGF, BMP, Wnt, and FGF signaling pathways. Neural crest (NC) cells are multipotent, and once induced, will follow specific paths to migrate to different locations of the body where they give rise to a diverse array of cell types and tissues...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/29138288/fibroblast-growth-factors-key-players-in-regeneration-and-tissue-repair
#16
REVIEW
Luigi Maddaluno, Corinne Urwyler, Sabine Werner
Tissue injury initiates a complex repair process, which in some organisms can lead to the complete regeneration of a tissue. In mammals, however, the repair of most organs is imperfect and results in scar formation. Both regeneration and repair are orchestrated by a highly coordinated interplay of different growth factors and cytokines. Among the key players are the fibroblast growth factors (FGFs), which control the migration, proliferation, differentiation and survival of different cell types. In addition, FGFs influence the expression of other factors involved in the regenerative response...
November 15, 2017: Development
https://www.readbyqxmd.com/read/29137286/fibroblast-growth-factor-modulates-mast-cell-recruitment-in-a-murine-model-of-prostate-cancer
#17
Roberto Ronca, Roberto Tamma, Daniela Coltrini, Simona Ruggieri, Marco Presta, Domenico Ribatti
Mast cells are important modifiers of prostate tumor microenvironment. The fibroblast growth factor/fibroblast growth factor receptor (FGF/FGFR) system plays a non-redundant autocrine/paracrine role in the growth, vascularization and progression of prostate tumors. Accordingly, the FGF antagonist long pentraxin-3 (PTX3) and the PTX3-derived small molecule FGF-trap NSC12 have been shown to inhibit the growth and vascularization of different FGF-dependent tumor types, including prostate cancer. In this study, we show that recombinant FGF2 is able to cause mast cell recruitment in vivo in the Matrigel plug assay...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29132901/an-implication-of-klotho-related-molecules-in-different-smoking-related-health-outcomes-between-men-and-women
#18
Kaori Nakanishi, Makoto Nishida, Ryohei Yamamoto, Masahiro Koseki, Toshiki Moriyama, Keiko Yamauchi-Takihara
BACKGROUND: Men and women react differently to some disease states, and women are reported to be more sensitive than men to the toxic effects of smoking. We examined the serum concentration of Klotho-related molecules, α-Klotho (αKl) and fibroblast growth factor (FGF)-21, and the influence of smoking on these molecules in both sexes. METHODS: Subjects included 90 men and 140 women in good health who underwent a health examination. RESULTS: Among male subjects, serum concentrations of FGF-21, soluble sαKl, and inflammation-related cytokine interleukin (IL)-6 were significantly higher in smokers than in never-smokers...
November 10, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29132503/gyrification-of-the-cerebral-cortex-requires-fgf-signaling-in-the-mammalian-brain
#19
Naoyuki Matsumoto, Yohei Shinmyo, Yoshie Ichikawa, Hiroshi Kawasaki
Although it has been believed that the evolution of cortical folds was a milestone, allowing for an increase in the number of neurons in the cerebral cortex, the mechanisms underlying the formation of cortical folds are largely unknown. Here we show regional differences in the expression of fibroblast growth factor receptors (FGFRs) in the developing cerebral cortex of ferrets even before cortical folds are formed. By taking the advantage of our in utero electroporation technique for ferrets, we found that cortical folding was impaired in the ferret cerebral cortex when FGF signaling was inhibited...
November 14, 2017: ELife
https://www.readbyqxmd.com/read/29126155/isl1-mediates-mesenchymal-expansion-in-the-developing-external-genitalia-via-regulation-of-bmp4-fgf10-and-wnt5a
#20
Saunders T Ching, Carlos R Infante, Wen Du, Amnon Sharir, Sungdae Park, Douglas B Menke, Ophir D Klein
Genital malformations are among the most common human birth defects, and both genetic and environmental factors can contribute to these malformations. Development of the external genitalia in mammals relies on complex signaling networks, and disruption of these signaling pathways can lead to genital defects. Islet-1 (ISL1), a member of the LIM/Homeobox family of transcription factors, has been identified as a major susceptibility gene for classic bladder exstrophy in humans, a common form of the bladder exstrophy-epispadias complex (BEEC), and is implicated in a role in urinary tract development...
November 8, 2017: Human Molecular Genetics
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