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TGF-beta AND fibrosis

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https://www.readbyqxmd.com/read/28634911/novel-insights-into-a-reputably-irreversible-process-combined-mrna-and-mirna-profiling-of-tissue-from-vesicourethral-anastomotic-stenosis-after-radical-prostatectomy
#1
T S Worst, K Daskalova, A Steidler, K Berner-Leischner, R Röth, B Niesler, C-A Weis, M C Kriegmair, P Erben, D Pfalzgraf
PURPOSE: Until recently, tissue fibrosis-ultimately leading to permanent scaring-has been considered an irreversible process. However, recent findings indicate that it may be reversible after all. Vesicourethral anastomotic stenosis (VUAS) as fibrous narrowing is a frequent complication after radical prostatectomy with high recurrence rates and requires invasive treatment. The pathophysiology is poorly understood. Therefore, a combined mRNA and miRNA transcription profiling in tissue from VUAS was performed using nCounter technology...
June 20, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28632033/overexpression-of-alk5-induces-human-tenon-s-capsule-fibroblasts-transdifferentiation-and-fibrosis-in-vitro
#2
Shu-Hao Fu, Hui-Ying Wang, Jia-Ying Zhang, Hui-Min Shi, Nan Zhang, Wen Ye, Yi-Qin Xiao
PURPOSE: To investigate the involvement of activin receptor-like kinase 5 (ALK5) in human Tenon's capsule fibroblasts (HTFs) transdifferentiation and fibrosis. METHODS: (1) Cultured HTFs were treated with transforming growth factor beta 1 (TGF-β1) at different concentrations for different durations, mRNA expression of ALK5 and plasminogen activator inhibitor-1 (PAI-1) was measured by quantitative polymerase chain reaction (PCR) while protein expression of ALK5, α-smooth muscle actin (α-SMA), and extracellular matrix deposition including fibronectin (FN) and collagen I (Col1) was assessed by western blot...
February 28, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28621668/blocking-epithelial-to-mesenchymal-transition-in-glioblastoma-with-a-sextet-of-repurposed-drugs-the-eis-regimen
#3
Richard E Kast, Nicolas Skuli, Georg Karpel-Massler, Guido Frosina, Timothy Ryken, Marc-Eric Halatsch
This paper outlines a treatment protocol to run alongside of standard current treatment of glioblastoma- resection, temozolomide and radiation. The epithelial to mesenchymal transition (EMT) inhibiting sextet, EIS Regimen, uses the ancillary attributes of six older medicines to impede EMT during glioblastoma. EMT is an actively motile, therapy-resisting, low proliferation, transient state that is an integral feature of cancers' lethality generally and of glioblastoma specifically. It is believed to be during the EMT state that glioblastoma's centrifugal migration occurs...
June 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620270/flucytosine-and-amphotericin-b-coadministration-induces-dose-related-renal-injury
#4
Alexandra Folk, Cornel Balta, Hildegard Herman, Alexandra Ivan, Oana Maria Boldura, Lucian Paiusan, Aurel Ardelean, Anca Hermenean
Invasive fungal infections remain an important clinical problem, and despite recent approaches, they bring high morbidity and mortality. Combination therapies are the most effective; however, adverse effects need to be considered. In this study, we aimed to evaluate the nephrotoxicity induced by combined therapy of flucytosine (FL) and amphotericin B (AMF) at 3 different doses administered to mice for 14 days: 300 μg/kg AMF+50 mg/kg FL; 600 μg/kg AMF+100 mg/kg FL; 900 μg/kg AMF+150 mg/kg FL. Antifungal coadministration triggered nuclear translocation of NF-κB and upregulated nuclear factor kappa-light-chain-enhancer of activated B cells subunit p65 (NF-κB p65) messenger RNA mRNA level in dose-dependent manner...
April 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28619646/time-dependent-effects-of-hjp272-an-endothelin-receptor-antagonist-in-bleomycin-induced-pulmonary-fibrosis
#5
Xingjian Liu, Nikhil Khadtare, Hardek Patel, Ralph Stephani, Jerome Cantor
Using a lipopolysaccharide (LPS) model of acute lung injury, we have previously shown that endothelin-1 (ET-1), a potent mediator of vasoconstriction, may act as a "gatekeeper" for the influx of inflammatory cells into the lung. To further investigate the potential of ET-1 to limit the progression of lung injury, hamsters were treated with an endothelin receptor antagonist (ERA), HJP272, either 1 h prior to intratracheal instillation of bleomycin (BLM) or 24 h afterwards. Lung injury and repair were examined by measuring the following parameters: 1) histopathological changes; 2) neutrophil content in bronchoalveolar lavage fluid (BALF); 3) lung collagen content; 4) tumor necrosis factor receptor 1 (TNFR1) expression by BALF macrophages; 5) BALF levels of: a) transforming growth factor beta-1 (TGF-β1), b) stromal cell-derived factor 1 (commonly referred to as CXCL12), and c) platelet-derived growth factor BB (PDGF-BB); 6) alveolar septal cell apoptosis (as measured by the TUNEL assay)...
June 12, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28600710/the-influence-of-systemic-renin-angiotensin-inhibition-on-ocular-cytokines-related-to-proliferative-vitreoretinopathy
#6
Robert Hoerster, Sascha Fauser, Claus Cursiefen, Bernd Kirchhof, Ludwig M Heindl
PURPOSE: The renin-angiotensin system is involved in the pathogenesis of fibrosis in several organs via induction of transforming growth factor (TGF) beta. In the pathogenesis of proliferative vitreoretinopathy (PVR) TGF-beta plays a pivotal role, promoting transition of retinal pigment epithelial (RPE) cells into myofibroblasts. We studied the influence of angiotensin converting enzyme-inhibition (ACEI) on cytokines and growth factors, related to PVR in aqueous humor. METHODS: We performed a post hoc analysis of a prospectively conducted interventional case series...
June 9, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28584818/effects-of-pirfenidone-and-collagen-polyvinylpyrrolidone-on-macroscopic-and-microscopic-changes-tgf-%C3%AE-1-expression-and-collagen-deposition-in-an-experimental-model-of-tracheal-wound-healing
#7
J Raúl Olmos-Zuñiga, Mariana Silva-Martínez, Rogelio Jasso-Victoria, Matilde Baltazares-Lipp, Claudia Hernández-Jiménez, Ivette Buendía-Roldan, Jazmin Jasso-Arenas, Alan Martínez-Salas, Jazmin Calyeca-Gómez, Axel E Guzmán-Cedillo, Miguel Gaxiola-Gaxiola, Laura Romero-Romero
Tracheal stenosis (TS) is a fibrosis originated by prolonged inflammation and increased transforming growth factor beta 1 (TGF-β1) expression and collagen deposition (CD) in the tracheal wound. Several wound-healing modulators (WHMs) have been used to modulate the tracheal healing process and prevent TS, but they have failed, justifying the need to evaluate alternative WHM. The pirfenidone (PFD) and collagen-polyvinylpyrrolidone (Collagen-PVP) decrease inflammation and fibrosis. This study assessed the effect of PFD administration and Collagen-PVP topical application on macroscopic and microscopic changes, TGF-β1 expression, and CD in an experimental model of tracheal wound healing...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28562330/the-correlation-between-pulmonary-fibrosis-and-methylation-of-peripheral-smad3-in-cases-of-pigeon-breeder-s-lung-in-a-chinese-uygur-population
#8
Chao Wu, Wei Ding, Qifeng Li, Wenyi Wang, Mingqin Deng, Rong Jin, Baosen Pang, Xiaohong Yang
Smad3 is a key protein in the transforming growth factor-beta (TGF-β)/Smad signaling pathway, which is involved in fibrosis in many organs. We investigated the relationship between Smad3 gene methylation and pulmonary fibrosis in pigeon breeder's lung (PBL). Twenty Uygur PBL patients with pulmonary fibrosis in Kashi between October 2015 and March 2016 were enrolled. Twenty PBL-free pigeon breeders and 20 healthy non-pigeon breeders enrolled during the same period constituted the negative and normal control groups, respectively...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28561587/protective-effects-of-functional-chicken-liver-hydrolysates-against-liver-fibrogenesis-antioxidation-anti-inflammation-and-antifibrosis
#9
Po-Ju Chen, Jung-Kai Tseng, Yi-Ling Lin, Yi-Hsieng Samuel Wu, Yi-Tse Hsiao, Jr-Wei Chen, Yi-Chen Chen
Via an assay using an Amino Acid Analyzer, pepsin-digested chicken liver hydrolysates (CLHs) contain taurine (365.57 ± 39.04 mg/100 g), carnosine (14.03 ± 1.98 mg/100 g), and anserine (151.58 ± 27.82 mg/100 g). This study aimed to evaluate whether CLHs could alleviate thioacetamide (TAA)-induced fibrosis. A dose of 100 mg TAA/kg BW significantly increased serum liver damage indices and liver cytokine contents. Cell infiltration and monocytes/macrophages in livers of TAA-treated rats were illustrated by the H&E staining and immunohistochemical analysis of cluster of differentiation 68 (CD68, ED1), respectively...
June 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28538192/hepatic-anti-inflammatory-effect-of-hexane-extracts-of-dioscorea-batatas-decne-possible-suppression-of-toll-like-receptor-4-mediated-signaling
#10
Hyun Jung Koo, SungRyul Lee, Kwang Jin Chang, Eunsoo Sohn, Eun-Hwa Sohn, Se Chan Kang, Suhkneung Pyo
The hepatic anti-inflammatory potential of hexane extracts of Dioscorea batatas Decne edible part (EDH-1e) and bark (EDH-2b) were investigated in Western-type diet-fed apolipoprotein E null [ApoE (-/-)] mice and HepG2 cells. EDH-1e and EDH-2b suppressed the increased levels of tumor necrosis factor alpha (TNF-α), interleukin (IL)-6, transforming growth factor beta 1 (TGF-β1), vascular cell adhesion protein 1 (VCAM-1), and monocyte chemoattractant protein-1 (MCP-1), and reduced infiltration of monocytes into liver tissue...
May 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28533545/treatment-effects-of-the-traditional-chinese-medicine-shenks-in-bleomycin-induced-lung-fibrosis-through-regulation-of-tgf-beta-smad3-signaling-and-oxidative-stress
#11
Haiyan Chu, Ying Shi, Shuai Jiang, Qicheng Zhong, Yongqiang Zhao, Qingmei Liu, Yanyun Ma, Xiangguang Shi, Weifeng Ding, Xiaodong Zhou, Jimin Cui, Li Jin, Gang Guo, Jiucun Wang
Pulmonary fibrosis is a kind of devastating interstitial lung disease due to the limited therapeutic strategies. Traditional Chinese medicine (TCM) practices have put forth Shenks as a promising treatment approach. Here, we performed in vivo study and in vitro study to delineate the anti-fibrotic mechanisms behind Shenks treatment for pulmonary fibrosis. We found that regardless of the prophylactic or therapeutic treatment, Shenks was able to attenuate BLM-induced-fibrosis in mice, down regulate extracellular matrix genes expression, and reduce collagen production...
May 22, 2017: Scientific Reports
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
#12
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
#13
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
#14
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...
June 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28467108/gremlin1-accelerates-hepatic-stellate-cell-activation-through-upregulation-of-tgf-beta-expression
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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