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TGF-beta AND fibrosis

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https://www.readbyqxmd.com/read/28518142/mir-130a-3p-attenuates-activation-and-induces-apoptosis-of-hepatic-stellate-cells-in-nonalcoholic-fibrosing-steatohepatitis-by-directly-targeting-tgfbr1-and-tgfbr2
#1
Yang Wang, Jinghua Du, Xuemin Niu, Na Fu, Rongqi Wang, Yuguo Zhang, Suxian Zhao, Dianxing Sun, Yuemin Nan
Nonalcoholic fibrosing steatohepatitis is a uniform process that occurs throughout nonalcoholic fatty liver disease (NAFLD). MicroRNAs (miRNAs) have been shown to be involved in the biological processes, but the role and molecular mechanism of miRNAs in NAFLD are not entirely clear. In this study, we observed a significant reduction in the expression of miR-130a-3p in livers of a mouse model with fibrosis induced by a methionine-choline-deficient diet, of NAFLD patients, and in activated hepatic stellate cells (HSCs)...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28507335/bnip3l-promotes-cardiac-fibrosis-in-cardiac-fibroblasts-through-ca-2-i-tgf-%C3%AE-smad2-3-pathway
#2
Weili Liu, Xinxing Wang, Zhusong Mei, Jingbo Gong, Lishuang Huang, Xiujie Gao, Yun Zhao, Jing Ma, Lingjia Qian
Fibrosis is an important, structurally damaging event that occurs in pathological cardiac remodeling, leading to cardiac dysfunction. BNIP3L is up-regulated in pressure overload-induced heart failure and has been reported to play an important role in cardiomyocyte apoptosis; however, its involvement in cardiac fibroblasts (CFs) remains unknown. We prove for the first time that the expression of BNIP3L is significantly increased in the CFs of rats undergoing pressure overload-induced heart failure. Furthermore, this increased BNIP3L expression was confirmed in cultured neonatal rat CFs undergoing proliferation and extracellular matrix (ECM) protein over-expression that was induced by norepinephrine (NE)...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28498548/engineered-3d-cardiac-fibrotic-tissue-to-study-fibrotic-remodeling
#3
Amir Hossein Sadeghi, Su Ryon Shin, Janine C Deddens, Giuseppe Fratta, Serena Mandla, Iman K Yazdi, Gyan Prakash, Silvia Antona, Danilo Demarchi, Marc P Buijsrogge, Joost P G Sluijter, Jesper Hjortnaes, Ali Khademhosseini
Activation of cardiac fibroblasts into myofibroblasts is considered to play an essential role in cardiac remodeling and fibrosis. A limiting factor in studying this process is the spontaneous activation of cardiac fibroblasts when cultured on two-dimensional (2D) culture plates. In this study, a simplified three-dimensional (3D) hydrogel platform of contractile cardiac tissue, stimulated by transforming growth factor-β1 (TGF-β1), is presented to recapitulate a fibrogenic microenvironment. It is hypothesized that the quiescent state of cardiac fibroblasts can be maintained by mimicking the mechanical stiffness of native heart tissue...
May 12, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28467108/gremlin1-accelerates-hepatic-stellate-cell-activation-through-upregulation-of-tgf-beta-expression
#4
Yan-Qiong Zhang, Lin-Yan Wan, Xiao-Min He, Yi-Ran Ni, Chang Wang, Chang-Bai Liu, Jiang-Feng Wu
Gremlin1, the antagonist of bone morphogenetic protein-7 and one of the target genes of transforming growth factor (TGF)-β signal pathway, plays an important role in embryonic development and its expression decreases along with aging. To explore the expression of gremlin1 in liver fibrosis and the causal link between gremlin1 and hepatic stellate cell (HSC) activation, we detected the expression of gremlin1 in mice with hepatic fibrosis induced by porcine serum using real time quantitative PCR (RT-qPCR) and immunohistochemical staining...
May 3, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28464379/activation-of-transforming-growth-factor-%C3%AE-1-by-thrombin-via-integrins-%C3%AE-v%C3%AE-1-%C3%AE-v%C3%AE-3-and-%C3%AE-v%C3%AE-5-in-buccal-fibroblasts-suppression-by-epigallocatechin-3-gallate
#5
Jenny Zwei-Chieng Chang, Yu-Ping Hsieh, Wen-Hsin Lin, Hsin-Ming Chen, Mark Yen-Ping Kuo
BACKGROUND: Transforming growth factor-beta (TGF-β) plays a central role in the pathogenesis of oral submucous fibrosis (OSF). Thrombin is a key player in tissue repair, inflammation, and fibrosis after injury. METHODS: Effects of thrombin on activated-TGF-β1 levels, Smad3 phosphorylation, and connective tissue growth factor (CTGF/CCN2) synthesis in primary human buccal mucosal fibroblasts (BMFs) were assessed by enzyme-linked immunosorbent assay or Western blot analysis...
May 2, 2017: Head & Neck
https://www.readbyqxmd.com/read/28463588/the-lactate-dehydrogenase-inhibitor-gossypol-inhibits-radiation-induced-pulmonary-fibrosis
#6
Jennifer L Judge, Shannon H Lacy, Wei-Yao Ku, Kristina M Owens, Eric Hernady, Thomas H Thatcher, Jacqueline P Williams, Richard P Phipps, Patricia J Sime, R Matthew Kottmann
Exposure of the lung to ionizing radiation that occurs in radiotherapy, as well as after accidental or intentional mass casualty incident can result in pulmonary fibrosis, which has few treatment options. Pulmonary fibrosis is characterized by an accumulation of extracellular matrix proteins that create scar tissue. Although the mechanisms leading to radiation-induced pulmonary fibrosis remain poorly understood, one frequent observation is the activation of the profibrotic cytokine transforming growth factor-beta (TGF-β)...
May 2, 2017: Radiation Research
https://www.readbyqxmd.com/read/28460256/12-month-patterns-of-serum-markers-of-collagen-synthesis-transforming-growth-factor-and-connective-tissue-growth-factor-are-similar-in-new-onset-and-chronic-dilated-cardiomyopathy-in-patients-both-with-and-without-cardiac-fibrosis
#7
Paweł Rubiś, Sylwia Wiśniowska-Smiałek, Ewa Wypasek, Lucyna Rudnicka-Sosin, Marta Hlawaty, Agata Leśniak-Sobelga, Magdalena Kostkiewicz, Piotr Podolec
BACKGROUND: The dynamics of the extracellular matrix (ECM) fibrosis process in dilated cardiomyopathy (DCM) may be assessed non-invasively by means of serum markers of fibrosis. AIM: To explore the kinetics of serum markers of fibrosis during a 12-month follow-up in DCM. METHODS: We included 70 consecutive DCM patients (pts) (48±12.1years, EF 24.4±7.4%) with new-onset (n=35, duration <6months) and chronic DCM (n=35, >6months). Markers of collagen type I and III synthesis - procollagens type I and III carboxy- and amino-terminal peptides (PICP, PINP, PIIICP, PIIINP), and ECM metabolism controlling factors - tumor growth factor beta-1 (TGF1-β), and connective tissue growth factor (CTGF) - were measured in serum at baseline, and at 3- and 12-month follow-up...
April 28, 2017: Cytokine
https://www.readbyqxmd.com/read/28449458/lower-expression-of-platelet-derived-growth-factor-is-associated-with-better-overall-survival-rate-of-patients-with-idiopathic-nonspecific-interstitial-pneumonia
#8
Xuyou Zhu, Xia Fang, Wei Chen, Fei Han, Ziling Huang, Benfang Luo, Pan Gu, Long Zhang, Weizhe Qiu, Yu Zeng, Weiwei Rui, Xianghua Yi
BACKGROUND: Idiopathic nonspecific interstitial pneumonia (INSIP) presents with varying degrees of interstitial inflammation and fibrosis exhibiting a uniform appearance. Lack of knowledge on the underlying mechanisms of INSIP has contributed to few effective treatment strategies. Our study is designed to explore aberrantly expressed cytokines involvement in INSIP development. METHODS: Oligo GEArray was employed to detect the expression of cytokines in INSIP patients, and idiopathic pulmonary fibrosis (IPF) was setup as isotype control...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28441064/bacillus-calmette-guerin-alleviates-airway-inflammation-and-remodeling-by-preventing-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition
#9
Xinrui Tian, Xinli Tian, Rujie Huo, Qin Chang, Guoping Zheng, Yan Du, Yan Chen, Bo Niu
Bacillus Calmette-Guerin (BCG) is a potent agent for the prevention of tuberculosis. Current studies have regarded BCG as an immunomodulator. However, there is little information on whether it can be used to inhibit airway inflammation and airway remodeling caused by asthma. Therefore, in this study, we investigate the role of epithelial-mesenchymal transition (EMT) in airway inflammation and airway remodeling as well as the possible therapeutic mechanism of BCG for the treatment of asthma. Wistar rats were sensitized and challenged by ovalbumin for 2 weeks or 8 weeks...
April 25, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28440536/selected-bone-morphogenetic-proteins-the-possibility-of-their-use-in-the-diagnostics-and-therapy-of-severe-asthma
#10
Marcelina Koćwin, Mateusz Jonakowski, Marcelina Przemęcka, Michał Panek, Piotr Kuna
Asthma is a chronic heterogeneous illness of the lower airway with an inflammatory basis, developing from hyperresponsiveness and bronchial obstruction. One of the more unfavourable processes occurring in the airway are the long-term changes of the respiratory tract known as remodelling, resulting in complete irreversible obstruction. Bone morphogenetic protein (BMP) is a member of the Transforming Growth Factor beta (TGF-b) superfamily, which regulates processes in embryonic and post-embryonic development...
2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/28424263/the-kielin-chordin-like-protein-kcp-attenuates-high-fat-diet-induced-obesity-and-metabolic-syndrome-in-mice
#11
Abdul Soofi, Katherine I Wolf, Margo P Emont, Nathan Qi, Gabriel Martinez-Santibanez, Edward Grimley, Wesam Ostwani, Gregory R Dressler
Obesity and its associated complications, such as insulin resistance and non-alcoholic fatty liver disease, are reaching epidemic proportions. In mice, the TGF-beta superfamily is implicated in the regulation of white and brown adipose tissue differentiation. The Kielin/chordin-like Protein (KCP) is a secreted regulator of the TGF-beta superfamily pathways that can inhibit both TGF-beta and activin signals while enhancing bone morphogenetic protein (BMP) signaling. However, KCP's effects on metabolism and obesity have not been studied in animal models...
April 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28420366/pirfenidone-attenuates-bleomycin-induced-pulmonary-fibrosis-in-mice-by-regulating-nrf2-bach1-equilibrium
#12
Yuan Liu, Fuai Lu, Lirong Kang, Zhihua Wang, Yongfu Wang
BACKGROUND: Oxidative stress is one of the important factors involved in the pathogenesis of idiopathic pulmonary fibrosis (IPF). The equilibrium of Nuclear factor-erythroid-related factor 2 (Nrf2)/[BTB (broad-complex, tramtrack and bric-a-brac) and CNC (cap'n'collar protein) homology 1, Bach1] determines the expression level of antioxidant factors, further regulating the function of oxidation/antioxidation capacity. Pirfenidone (PFD) is one of two currently for IPF therapy approved drugs...
April 18, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28416441/glechoma-hederacea-extracts-attenuate-cholestatic-liver-injury-in-a-bile-duct-ligated-rat-model
#13
Ya-Yu Wang, Shih-Yi Lin, Wen-Ying Chen, Su-Lan Liao, Chih-Cheng Wu, Pin-Ho Pan, Su-Tze Chou, Chun-Jung Chen
ETHNOPHARMACOLOGICAL RELEVANCE: In traditional Chinese medicine, Glechoma hederacea is frequently prescribed to patients with cholelithiasis, dropsy, abscess, diabetes, inflammation, and jaundice. Polyphenolic compounds are main bioactive components of Glechoma hederacea. AIM OF THE STUDY: This study was aimed to investigate the hepatoprotective potential of hot water extract of Glechoma hederacea against cholestatic liver injury in rats. MATERIALS AND METHODS: Cholestatic liver injury was produced by ligating common bile ducts in Sprague-Dawley rats...
April 14, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28399671/substance-p-increases-ccn2-dependent-on-tgf-beta-yet-collagen-type-i-via-tgf-beta1-dependent-and-independent-pathways-in-tenocytes
#14
Nagat Frara, Paul W Fisher, Yingjie Zhao, Joseph T Tarr, Mamta Amin, Steven N Popoff, Mary F Barbe
Transforming growth factor beta 1 (TGFbeta-1) and connective tissue growth factor (CCN2) are important mediators of tissue repair and fibrosis, with CCN2 functioning as a downstream mediator of TGFβ-1. Substance P (SP) is also linked to collagen production in tenocytes. A link between SP, TGFbeta-1 and CCN2 has yet to be established in tenocytes or fibrogenic processes. We sought to determine whether SP induces tenocyte proliferation, CCN2, or collagen production via TGFbeta-1 signaling or independently in rat primary tenocytes...
March 1, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28395719/-alphacalcidol-combined-with-dexamethasone-for-reducing-pulmonary-fibrosis-in-mice-and-its-mechanism
#15
Xiaoyu Yang, Ling Wu, Guoping Li, Qin Ran, Lei Zhang
Objective To study the effect of alphacalcidol and dexamethasone on pulmonary fibrosis and its mechanism. Methods Forty C57BL/6 mice were randomly divided into five groups: normal control group, pulmonary fibrosis group, alphacalcidol group, dexamethasone group, dexamethasone combined with alphacalcidol group. The normal control group was given 0.5 μL/g normal saline by one-time intratracheal injection as well as 0.2 mL normal saline by daily intragastric infusion. The other groups received 0.5 μL/g bleomycin solution by one-time intratracheal injection; besides, the pulmonary fibrosis group were subjected to 0...
April 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28390311/metformin-mitigates-carbon-tetrachloride-induced-tgf-%C3%AE-1-smad3-signaling-and-liver-fibrosis-in-mice
#16
Kerui Fan, Kejia Wu, Ling Lin, Pu Ge, Jie Dai, Xiaojiao He, Kai Hu, Li Zhang
Increasing evidence suggests that the widely used antidiabetic drug metformin have an extensive therapeutic range beyond hypoglycemic therapy. We previously found that metformin significantly attenuated acute hepatitis. The present study investigated the potential effects of metformin on carbon tetrachloride (CCl4)-induced liver fibrosis in mice. The results indicated that treatment with metformin suppressed CCl4-induced elevation of liver index, formation of fibrotic septa, accumulation of connective tissue and upregulation of collagen I...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28389561/tgf-beta-1-induced-cd44v6-nox4-signaling-in-pathogenesis-of-idiopathic-pulmonary-fibrosis
#17
Shibnath Ghatak, Vincent C Hascall, Roger R Markwald, Carol Feghali-Bostwick, Carol M Artlett, Monika Gooz, Galina S Bogatkevich, Ilia Atanelishvili, Richard M Silver, Jeanette Wood, Victor J Thannickal, Suniti Misra
Idiopathic pulmonary fibrosis (IPF) is a progressive clinical syndrome of fatal outcome. The lack of information about the signaling pathways that sustain fibrosis and the myofibroblasts phenotype has prevented the development of targeted therapies for IPF. Our previous study (1) showed that isolated fibrogenic lung fibroblasts have high endogenous levels of the hyaluronan receptor, CD44v6 (CD44-variants containing exon-6), which enhances the TGF-beta-1 autocrine signaling and induces fibroblasts to transdifferentiate into myofibroblasts...
April 7, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28339906/interstitial-fibrosis-scored-on-whole-slide-digital-imaging-of-kidney-biopsies-is-a-predictor-of-outcome-in-proteinuric-glomerulopathies
#18
Laura H Mariani, Sebastian Martini, Laura Barisoni, Pietro A Canetta, Jonathan P Troost, Jeffrey B Hodgin, Matthew Palmer, Avi Z Rosenberg, Kevin V Lemley, Hui-Ping Chien, Jarcy Zee, Abigail Smith, Gerald B Appel, Howard Trachtman, Stephen M Hewitt, Matthias Kretzler, Serena M Bagnasco
Background.: Interstitial fibrosis (IF), tubular atrophy (TA) and interstitial inflammation (II) are known determinants of progression of renal disease. Standardized quantification of these features could add value to current classification of glomerulopathies. Methods.: We studied 315 participants in the Nephrotic Syndrome Study Network (NEPTUNE) study, including biopsy-proven minimal change disease (MCD = 98), focal segmental glomerulosclerosis (FSGS = 121), membranous nephropathy (MN = 59) and IgA nephropathy (IgAN = 37)...
February 27, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28320097/asiatic-acid-ameliorates-pulmonary-fibrosis-induced-by-bleomycin-blm-via-suppressing-pro-fibrotic-and-inflammatory-signaling-pathways
#19
Shu-Hong Dong, Yan-Wei Liu, Feng Wei, Hui-Zhen Tan, Zhi-Dong Han
Idiopathic pulmonary fibrosis is known as a life-threatening disease with high mortality and limited therapeutic strategies. In addition, the molecular mechanism by which pulmonary fibrosis developed is not fully understood. Asiatic acid (AA) is a triterpenoid, isolated from Centella asiatica, exhibiting efficient anti-inflammatory and anti-oxidative activities. In our study, we attempted to explore the effect of Asiatic acid on bleomycin (BLM)-induced pulmonary fibrosis in mice. The findings indicated that pre-treatment with Asiatic acid inhibited BLM-induced lung injury and fibrosis progression in mice...
May 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28303407/evodiamine-attenuates-tgf-%C3%AE-1-induced-fibroblast-activation-and-endothelial-to-mesenchymal-transition
#20
Qing-Qing Wu, Yang Xiao, Xiao-Han Jiang, Yuan Yuan, Zheng Yang, Wei Chang, Zhou-Yan Bian, Qi-Zhu Tang
The aim of this study is to investigate the effect of evodiamine on fibroblast activation in cardiac fibroblasts and endothelial to mesenchymal transition (EndMT) in human umbilical vein endothelial cells (HUVECs). Neonatal rat cardiac fibroblasts were stimulated with transforming growth factor beta 1 (TGF-β1) to induce fibroblast activation. After co-cultured with evodiamine (5, 10 μM), the proliferation and pro-fibrotic proteins expression of cardiac fibroblasts were evaluated. HUVECs were also stimulated with TGF-β1 to induce EndMT and treated with evodiamine (5, 10 μM) at the same time...
March 16, 2017: Molecular and Cellular Biochemistry
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