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https://www.readbyqxmd.com/read/29122742/myotube-migration-to-cover-and-shape-the-testis-of-drosophila-depends-on-heartless-cadherin-catenin-and-myosin-ii
#1
Silke Rothenbusch-Fender, Katharina Fritzen, Maik C Bischoff, Detlev Buttgereit, Susanne F Oenel, Renate Renkawitz-Pohl
During Drosophila metamorphosis, nascent testis myotubes migrate from the prospective seminal vesicle of the genital disc onto pupal testes and then further to cover the testes with multinucleated smooth-like muscles. Here we show that DWnt2 is likely required for determination of testis-relevant myoblasts on the genital disc. Knock down of FGFR Heartless by RNAi and a dominant-negative version revealed multiple functions of Heartless, namely regulation of the amount of myoblasts on the genital disc, connection of seminal vesicles and testes, and migration of muscles along the testes...
November 9, 2017: Biology Open
https://www.readbyqxmd.com/read/29042195/circular-rna-wdr77-target-fgf-2-to-regulate-vascular-smooth-muscle-cells-proliferation-and-migration-by-sponging-mir-124
#2
Junjiang Chen, Lianqun Cui, Jingliang Yuan, Yuqing Zhang, Hongjun Sang
Increasing evidences have revealed the important role of circular RNAs (circRNAs) in cardiovascular system disease. Whereas, the expression profiles and in-depth regulation of circRNAs on vascular smooth muscle cells (VSMCs) is still undetermined. In present study, our research team performed circRNAs microarray analysis to present the circRNAs expression profiles in high glucose induced VSMCs in vitro. Results showed that total of 983 circRNAs were discovered to be differentially expressed, and of these, 458 were upregulated and 525 were downregulated...
December 9, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29016732/regulation-of-vascular-smooth-muscle-cell-calcification-by-syndecan-4-fgf-2-pkc%C3%AE-signalling-and-cross-talk-with-tgf%C3%AE
#3
Samantha J Borland, Thomas G Morris, Shona C Borland, Mark R Morgan, Sheila E Francis, Catherine L R Merry, Ann E Canfield
Aims: Vascular calcification is a major cause of morbidity and mortality. Fibroblast growth factor-2 (FGF-2) plays an instructive role in osteogenesis and bone development, but its role in vascular calcification was unknown. Therefore, we investigated the involvement of FGF-2 in vascular calcification and determined the mechanism by which it regulates this process. Methods and results: We demonstrate that FGF-2 expression is increased in vascular smooth muscle cells (VSMCs) induced to deposit a mineralized matrix by incubation with β-glycerophosphate...
November 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28947594/mir-339-inhibits-proliferation-of-pulmonary-artery-smooth-muscle-cell-by-targeting-fgf-signaling
#4
Jidong Chen, Xiaolei Cui, Li Li, Junle Qu, J Usha Raj, Deming Gou
Pulmonary artery hypertension (PAH) is a fatal disorder. Recent studies suggest that microRNA (miRNA) plays an important role in regulating proliferation of pulmonary artery smooth muscle cells (PASMC), which underlies the pathology of PAH However, the exact mechanism of action of miRNAs remains elusive. In this study, we found that miR-339 was highly expressed in the cardiovascular system and was downregulated by a group of cytokines and growth factors, especially PDGF-BB and FGF2. Functional analyses revealed that miR-339 can inhibit proliferation of PASMC Also, miR-339 inhibited FGF2-induced proliferation, but had no effect on proliferation induced by PDGF-BB The fibroblast growth factor receptor substrate 2 (FRS2) was identified as a potential direct target of miR-339...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28924004/basic-fibroblast-growth-factor-2-is-a-determinant-of-cd4-t-cell-airway-smooth-muscle-cell-communication-through-membrane-conduits
#5
Soroor Farahnak, Toby K McGovern, Rachael Kim, Michael O'Sullivan, Brian Chen, Minhyoung Lee, Haruka Yoshie, Anna Wang, Joyce Jang, Saba Al Heialy, Anne-Marie Lauzon, James G Martin
Activated CD4 T cells connect to airway smooth muscle cells (ASMCs) in vitro via lymphocyte-derived membrane conduits (LMCs) structurally similar to membrane nanotubes with unknown intercellular signals triggering their formation. We examined the structure and function of CD4 T cell-derived LMCs, and we established a role for ASMC-derived basic fibroblast growth factor 2 (FGF2b) and FGF receptor (FGFR)1 in LMC formation. Blocking FGF2b's synthesis and FGFR1 function reduced LMC formation. Mitochondrial flux from ASMCs to T cells was partially FGF2b and FGFR1 dependent...
November 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28886304/the-roles-of-vasohibin-and-its-family-members-beyond-angiogenesis-modulators
#6
Hua Du, Jing Zhao, Ling Hai, Jing Wu, Hua Yi, Yonghong Shi
Vasohibin-1 is an intrinsic angiogenesis inhibitor, and is expressed in endothelial cells via induction by pro-angiogenesis factors. It is known to inhibit several processes of angiogenesis, with different mechanisms from extrinsic angiogenesis inhibitors. Vasohibin-2 is mainly expressed by mononuclear cells which have been mobilized from bone marrow. It not only promotes angiogenesis, but also modulates the releases of FGF-2 and VEGF, which are the two major inducers for vasohibin1. Hypoxic environment induces the expression of hypoxia-inducible Factor 1α with a result of VEGF release nearly in all tumor cell lines and tissues...
September 8, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28810065/olodaterol-shows-anti-fibrotic-efficacy-in-in-vitro-and-in-vivo-models-of-pulmonary-fibrosis
#7
Franziska Elena Herrmann, Lutz Wollin, Johannes Wirth, Florian Gantner, Bärbel Lämmle, Eva Wex
BACKGROUND AND PURPOSE: Idiopathic pulmonary fibrosis (IPF) is a fatal respiratory disease characterized by excessive fibroblast activation ultimately leading to scarring of the lungs. Although, the activation of β2 -adrenoceptors (β2 -AR) has been shown to inhibit pro-fibrotic events primarily in cell lines, the role of β2 -adrenoceptor agonists has not yet been fully characterized. The aim of our study was to explore the anti-fibrotic activity of the long-acting β2 -adrenoceptor agonist olodaterol in primary human lung fibroblasts (HLF) and in murine models of pulmonary fibrosis...
November 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28792088/the-anti-proliferation-effects-of-oleanolic-acid-on-a7r5-cells-role-of-ucp2-and-downstream-fgf-2-p53-tsp-1
#8
Yantao Han, Qixiao Jiang, Yu Wang, Wenqian Li, Min Geng, Zhiwu Han, Xuehong Chen
Vascular smooth muscle cell (VSMC) proliferation is a major contributor to atherosclerosis. This study investigated the inhibitatory effects of oleanolic acid (OA) against oxidized low density lipoprotein (ox-LDL) induced VSMC proliferation in A7r5 cells and explored underlying molecular mechanism. The cell proliferation was quantified with cell counting kit-8 (CCK-8), in which ox-LDL significantly increased A7r5 cells proliferation, while OA pretreatment effectively alleviated such changes without inducing overt cytotoxicity, as indicated by lactate dehydrogenase (LDH) assay...
August 9, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28774557/fibroblast-growth-factor-21-plays-an-inhibitory-role-in-vascular-calcification-in%C3%A2-vitro-through-opg-rankl-system
#9
Fangying Cao, Xiaoxiao Liu, Xiangrong Cao, Shaoping Wang, Kun Fu, Yejing Zhao, Fang Shen, Jinghua Liu
Vascular calcification is prevalent and associated with adverse outcome without available therapy. The benefits of fibroblast growth factor (FGF)-21 on metabolism and atherosclerosis make it a promising therapeutic agent for vascular calcification. We investigated the effects of FGF21 on vascular smooth muscle cell (VSMC) calcification by culturing rat VSMCs in a calcifying medium for 9days. FGF21 markedly attenuated mineral deposition and apoptosis at the indicated time points. In the presence of FGF21, the expression levels of osteoblastic protein including bone morphogenic protein-2, alkaline phosphatase(ALP), runt-related transcription factor(RUNX)-2 and nuclear factor-kappa B ligand (RANKL) were down-regulated, whereas the expression of osteoprotegerin (OPG) increased...
September 23, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28729349/fgf9-prevents-pleural-fibrosis-induced-by-intra-pleural-adenovirus-injection-in-mice
#10
Aurélien Justet, Audrey Joannes, Valérie Besnard, Joëlle Marchal-Sommé, Madeleine Jaillet, Phillippe Bonniaud, Jean-Michel Sallenave, Brigitte Solhonne, Yves Castier, Pierre Mordant, Hervé Mal, Aurélie Cazes, Raphael Borie, Arnaud A Mailleux, Bruno Crestani
Fibroblast Growth Factor 9 (FGF9) is necessary for fetal lung development and is expressed by epithelium and mesothelium. We evaluated the role of FGF9 overexpression on adenoviral-induced pleural injury in vivo and determined the biological effects of FGF9 on mesothelial cells in vitro. We assessed the expression of FGF9 and FGF receptors by mesothelial cells in both Human and mouse lungs. Intrapleural injection of an adenovirus expressing human FGF9 (AdFGF9) or a control adenovirus (Adcont) was performed...
July 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28659710/fluid-shear-stress-and-fibroblast-growth-factor-2-increase-endothelial-cell-associated-vitronectin
#11
Justin G Mathew, Sarah Basehore, Alisa Morss Clyne
Vitronectin is a matricellular protein that plays an important role in both coagulation and angiogenesis through its effects on cell adhesion and the plasminogen system. Vitronectin is known to bind to endothelial cells upon integrin activation. However, the effect of integrin activation by shear stress and growth factors on cell-associated vitronectin and plasminogen system activity has not yet been studied. We therefore exposed human umbilical vein endothelial cells to steady laminar flow, oscillating disturbed flow, or fibroblast growth factor-2 (FGF-2) for 24 hours...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28627391/low-molecular-weight-fucoidan-and-its-fractions-inhibit-renal-epithelial-mesenchymal-transition-induced-by-tgf-%C3%AE-1-or-fgf-2
#12
Xinpeng Li, Xiaohong Li, Quanbin Zhang, Tingting Zhao
We investigated the renal protective effects of low molecular weight fucoidan (LMWF) and its two fractions (F0.5 and F1.0), which were extracted from Laminaria japonica, on the epithelial-mesenchymal transition (EMT) induced by transforming growth factor beta 1 (TGF-β1) and fibroblast growth factor 2 (FGF-2) in HK-2 human renal proximal tubular cells. Cell morphology and EMT markers (fibronectin and alpha-smooth muscle actin) demonstrated that cells treated with TGF-β1 or FGF-2 developed EMT to a significant extent...
June 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28481834/immunohistochemical-profiling-of-corneas-with-fuchs-endothelial-corneal-dystrophy
#13
An-Katrien De Roo, Thomas Janssens, Beatrijs Foets, Joost J van den Oord
PURPOSE: Fuchs endothelial corneal dystrophy (FECD) is the leading indication for endothelial keratoplasty. Further insight into its pathophysiology is needed to develop alternative therapies. METHODS: Sixteen genes from a previous microarray expression experiment (FECD vs. normal) were validated using immunohistochemistry on paraffin-embedded corneas (n = 6 FECD, n = 6 normal). The results were quantified manually and semiautomatically. RESULTS: A higher percentage of corneal endothelial cells stained for alpha-smooth muscle actin (αSMA), cytokeratin 7, and superoxide dismutase 3 in FECD versus normal [odds ratios (ORs) of 60...
July 2017: Cornea
https://www.readbyqxmd.com/read/28387977/ex-vivo-analysis-of-the-contribution-of-fgf10-cells-to-airway-smooth-muscle-cell-formation-during-early-lung-development
#14
Elie El Agha, Vahid Kheirollahi, Alena Moiseenko, Werner Seeger, Saverio Bellusci
BACKGROUND: Airway smooth muscle cells (ASMCs) have been widely studied during embryonic lung development. These cells have been shown to control epithelial bifurcation during branching morphogenesis. Fibroblast growth factor 10-positive (FGF10(+) ) cells, originally residing in the submesothelial mesenchyme, contribute to ASMC formation in the distal lung. The reported work aims at monitoring the response of FGF10(+) progenitors and differentiated ASMCs to growth factor treatment in real time using lineage tracing in the background of an air-liquid interface (ALI) culture system...
April 7, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28235676/the-mek1-inhibitors-uo126-and-pd98059-block-pdgf-ab-induced-phosphorylation-of-threonine-292-in-porcine-smooth-muscle-cells
#15
Thomas Kubin, Ayse Cetinkaya, Markus Schönburg, Andres Beiras-Fernandez, Thomas Walther, Manfred Richter
PDGF-AB and FGF-2 (GFs) induce smooth muscle cell (SMC) proliferation which is indispensible for arteriogenesis. While there is common agreement that GFs stimulate SMC proliferation through phosphorylation (P-) of MEK1/2 at Ser218/222, we previously demonstrated that the MEK inhibitors PD98059 and UO126 did not inhibit P-Ser218/222 as originally proposed but caused strong hyperphosphorylation. Here, we demonstrate that GFs increased phosphorylation of MEK1 at Thr292 while UO126 and PD98059 blocked this phosphorylation...
February 21, 2017: Cytokine
https://www.readbyqxmd.com/read/28209294/sulfated-glycosaminoglycans-and-non-classically-secreted-proteins-basic-fgf-and-epimorphin-coordinately-regulate-tgf-%C3%AE-induced-cell-behaviors-of-human-scar-dermal-fibroblasts
#16
Tomoatsu Horigome, Shinya Takumi, Kota Shirai, Takumi Kido, Natsumi Hagiwara-Chatani, Ayumi Nakashima, Naoki Adachi, Hiroko Yano, Yohei Hirai
BACKGROUND: Upon skin injuries, dermal fibroblasts actively produce transforming growth factor-β (TGF-β), which leads to the formation of α-smooth muscle actin (αSMA)-positive granulation tissues. The hyperplasia or incomplete regression of these tissues subsequently causes scar formation in the skin, where sulfated glycosaminoglycans (GAGs), side chains of unique proteoglycans, are supposed to play important roles. OBJECTIVE: The aim of this study is to clarify the effects of sulfated GAGs on dermal cell behaviors triggered by the TGF-β signaling, along with its possible regulators basic fibroblast growth factor (bFGF) and cell surface epimorphin...
May 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/27976512/fgf2-antagonizes-aberrant-tgf%C3%AE-regulation-of-tropomyosin-role-for-posterior-capsule-opacity
#17
Eri Kubo, Shinsuke Shibata, Teppei Shibata, Etsuko Kiyokawa, Hiroshi Sasaki, Dhirendra P Singh
Transforming growth factor (TGF) β2 and fibroblast growth factor (FGF) 2 are involved in regulation of posterior capsule opacification (PCO) and other processes of epithelial-mesenchymal transition (EMT) such as cancer progression, wound healing and tissue fibrosis as well as normal embryonic development. We previously used an in vivo rodent PCO model to show the expression of tropomyosin (Tpm) 1/2 was aberrantly up-regulated in remodelling the actin cytoskeleton during EMT. In this in vitro study, we show the Tpms family of cytoskeleton proteins are involved in regulating and stabilizing actin microfilaments (F-actin) and are induced by TGFβ2 during EMT in lens epithelial cells (LECs)...
May 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27825029/the-role-of-fibroblast-growth-factor-2-in-patients-with-uterine-smooth-muscle-tumors-an-immunohistochemical-study
#18
Barbara Bodner-Adler, Klaus Mayerhofer, Klaus Czerwenka, Oliver Kimberger, Heinz Koelbl, Klaus Bodner
OBJECTIVE: Fibroblast growth factor 2 (FGF-2) is considered to be a potent stimulator of angiogenesis and seems therefore to play an important role in the growth of tumors. We compared the immunohistochemical profile of FGF-2 in patients with uterine leiomyomas, smooth muscle tumors of uncertain malignant potential (STUMP) and leiomyosarcoma (LMS). Furthermore, we tried to clarify the prognostic role of FGF-2 in uterine leiomyosarcoma. STUDY DESIGN: FGF-2 expression was investigated by immunohistochemistry from paraffin-embedded tissue in 26 patients with leiomyoma, in 24 cases with STUMP and in 21 patients with LMS...
December 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27634335/fibroblast-growth-factor-fgf-signaling-regulates-transforming-growth-factor-beta-tgf%C3%AE-dependent-smooth-muscle-cell-phenotype-modulation
#19
Pei-Yu Chen, Lingfeng Qin, Guangxin Li, George Tellides, Michael Simons
Smooth muscle cells (SMCs) in normal blood vessels exist in a highly differentiate state characterized by expression of SMC-specific contractile proteins ("contractile phenotype"). Following blood vessel injury in vivo or when cultured in vitro in the presence of multiple growth factors, SMC undergo a phenotype switch characterized by the loss of contractile markers and appearance of expression of non-muscle proteins ("proliferative phenotype"). While a number of factors have been reported to modulate this process, its regulation remains uncertain...
September 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27599364/fibroblast-growth-factor-23-inhibits-osteoblastic-gene-expression-and-induces-osteoprotegerin-in-vascular-smooth-muscle-cells
#20
Takehiro Nakahara, Keiko Kawai-Kowase, Hiroki Matsui, Hiroaki Sunaga, Toshihiro Utsugi, Tatsuya Iso, Masashi Arai, Shouichi Tomono, Masahiko Kurabayashi
BACKGROUND AND AIMS: Elevated fibroblast growth factor 23 (FGF23) levels are associated with cardiovascular mortality in patients with chronic kidney disease. However, both clinical and basic research have demonstrated conflicting evidence regarding the pathophysiological role of FGF23 in vascular calcification. The aim of this study was to determine the role of FGF23 in the osteoblastic gene expression in vascular smooth muscle cells (SMCs). METHODS AND RESULTS: We transduce human aortic SMCs (HASMCs) expressing klotho and FGF receptors with the adenovirus expressing human FGF23 (Ad-FGF23)...
October 2016: Atherosclerosis
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