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TGF-beta AND fibrosis

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https://www.readbyqxmd.com/read/27889753/renal-denervation-attenuates-multi-organ-fibrosis-and-improves-vascular-remodeling-in-rats-with-transverse-aortic-constriction-induced-cardiomyopathy
#1
Kai Wang, Dasheng Lu, Bin Zhang, Shengchan Wang, Qian Liu, Qi Zhang, Jie Geng, Qijun Shan
BACKGROUND/AIMS: To investigate the effects of renal denervation (RDN) on multi-organ fibrosis and vascular remodeling in cardiomyopathy. METHODS: Thirty-six male Sprague-Dawley rats underwent transverse aortic constriction (TAC). Five weeks later, 28 surviving TAC rats were randomly assigned to three groups: (1) RDN, (2) Sham, (3) Carvedilol. Six male Sham TAC rats served as the Control. Ten weeks after TAC, samples were collected. RESULTS: TAC rats showed an increased diastolic interventricular septal thickness at week 5...
November 25, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27882817/h2s-improves-renal-fibrosis-in-stz-induced-diabetic-rats-by-ameliorating-tgf-%C3%AE-1-expression
#2
Yan Li, Lin Li, Ou Zeng, Jun Mao Liu, Jun Yang
Nephropathy develops in many patients with type 1 diabetes mellitus (T1DM). However, the specific mechanisms and therapies remain unclear. For this purpose we investigated the effects of hydrogen sulfide (H2S) on renal fibrosis in streptozotocin (STZ) induced diabetic rats and its underlying mechanisms. Experimental rats were randomly divided into four groups: Control group (normal rats), DM group (diabetes rats), DM + NaHS group [diabetes rats treated with sodium hydrosulfide (NaHS)], and NaHS group (normal rats treated with NaHS)...
November 24, 2016: Renal Failure
https://www.readbyqxmd.com/read/27865848/retinol-dehydrogenase-13-deficiency-diminishes-carbon-tetrachloride-induced-liver-fibrosis-in-mice
#3
Xiaofang Cui, Suying Dang, Yan Wang, Yan Chen, Jia Zhou, Chunling Shen, Ying Kuang, Jian Fei, Lungen Lu, Zhugang Wang
Retinol dehydrogenase 13 (RDH13) is a mitochondrion-localized member of the short-chain dehydrogenases/reductases (SDRs) superfamily that participates in metabolism of some compounds. Rdh13 mRNA is most highly expressed in mouse liver. Rdh13 deficiency reduces the extent of liver injury and fibrosis, reduces hepatic stellate cell (HSC) activation, attenuates collagen I (II), tissue inhibitor of metalloproteinase 1 (TIMP-1) and transforming growth factor beta 1 (Tgf-β1) expression. The results indicate an important role of Rdh13 and suggest RDH13 as a possible new therapeutic target for CCl4-induced fibrosis...
November 16, 2016: Toxicology Letters
https://www.readbyqxmd.com/read/27863509/profibrotic-mediators-in-tendon-disease-a-systematic-review
#4
Wataru Morita, Sarah Jane Bothwell Snelling, Stephanie Georgina Dakin, Andrew Jonathan Carr
BACKGROUND: Tendon disease is characterized by the development of fibrosis. Transforming growth factor beta (TGF-β), bone morphogenic proteins (BMPs) and connective tissue growth factor (CTGF) are key mediators in the pathogenesis of fibrotic disorders. The aim of this systematic review was to investigate the evidence for the expression of TGF-β, BMPs and CTGF along tendon disease progression and the response of tendon cells to these growth factors accordingly. METHOD: We conducted a systematic screen of the scientific literature using the Medline database...
November 18, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27853137/cug-binding-protein-1-regulates-hsc-activation-and-liver-fibrogenesis
#5
Xingxin Wu, Xudong Wu, Yuxiang Ma, Fenli Shao, Yang Tan, Tao Tan, Liyun Gu, Yang Zhou, Beicheng Sun, Yang Sun, Xuefeng Wu, Qiang Xu
Excessive activation of hepatic stellate cells (HSCs) is a key step in liver fibrogenesis. Here we report that CUG-binding protein 1 (CUGBP1) expression is elevated in HSCs and positively correlates with liver fibrosis severity in human liver biopsies. Transforming growth factor-beta (TGF-β) selectively increases CUGBP1 expression in cultured HSCs in a p38 mitogen-activated protein kinase (MAPK)-dependent manner. Knockdown of CUGBP1 inhibits alpha smooth muscle actin (α-SMA) expression and promotes interferon gamma (IFN-γ) production in HSCs in vitro...
November 17, 2016: Nature Communications
https://www.readbyqxmd.com/read/27835939/anti-fibrotic-action-of-pirfenidone-in-dupuytren-s-disease-derived-fibroblasts
#6
Chaoming Zhou, Fang Liu, Phillip H Gallo, Mark E Baratz, Sandeep Kathju, Latha Satish
BACKGROUND: Dupuytren's disease (DD) is a complex fibro-proliferative disorder of the hand that is often progressive and eventually can cause contractures of the affected fingers. Transforming growth factor beta (TGF-β1) has been implicated as a key stimulator of myofibroblast activity and fascial contraction in DD. Pirfenidone (PFD) is an active small molecule shown to inhibit TGF-β1-mediated action in other fibrotic disorders. This study investigates the efficacy of PFD in vitro in inhibiting TGF-β1-mediated cellular functions leading to Dupuytren's fibrosis...
November 11, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27814572/tgf-beta1-wnt-and-shh-signaling-in-tumor-progression-and-in-fibrotic-diseases
#7
Maria D Castellone, Mikko O Laukkanen
Activation of resting fibroblasts to myofibroblasts characterizes several physiological and pathological conditions, from wound healing to aggressive metastatic cancers. In tissue damage, including wound healing, fibroblasts are activated in response to injury for a limited period of time to stimulate the healing process. Similar biological mechanisms are maintained in pathological conditions, e.g., scleroderma and cancer, where myofibroblasts persist in producing cytokines and growth factors to drive the development of fibrosis and the progression of disease...
January 1, 2017: Frontiers in Bioscience (Scholar Edition)
https://www.readbyqxmd.com/read/27805817/the-role-of-tgf-beta-and-ppar-alpha-signalling-pathways-in-radiation-response-of-locally-exposed-heart-integrated-global-transcriptomics-and-proteomics-analysis
#8
Vikram Subramanian, Ingar Seemann, Juliane Merl-Pham, Stefanie M Hauck, Fiona Anne Stewart, Michael J Atkinson, Soile Tapio, Omid Azimzadeh
Epidemiological data from patients undergoing radiotherapy for thoracic tumours clearly show the damaging effect of ionising radiation on cardiovascular system. The long-term impairment of heart function and structure after local high-dose irradiation is associated with systemic inflammatory response, contraction impairment, microvascular damage and cardiac fibrosis. The goal of the present study was to investigate molecular mechanisms involved in this process. C57BL/6J mice received a single X-ray dose of 16 Gy given locally to the heart at the age of 8 weeks...
November 2, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27797602/bleomycin-increases-neutrophil-adhesion-to-human-vascular-endothelial-cells-independently-of-upregulation-of-icam-1-and-e-selectin
#9
James D Williamson, Laura R Sadofsky, Michael G Crooks, John Greenman, Simon P Hart
AIM OF THE STUDY: Bleomycin-induced lung disease is a serious complication of therapy characterized by alveolar injury, cytokine release, inflammatory cell recruitment, and eventually pulmonary fibrosis. The mechanisms underlying bleomycin-induced pulmonary fibrosis may be relevant to other progressive scarring diseases of the lungs. Pulmonary vascular endothelial cells are critically involved in immune cell extravasation at sites of injury through adhesion molecule expression and cytokine release...
October 31, 2016: Experimental Lung Research
https://www.readbyqxmd.com/read/27797599/pyrrolidinedithiocarbamate-attenuates-bleomycin-induced-pulmonary-fibrosis-in-rats-modulation-of-oxidative-stress-fibrosis-and-inflammatory-parameters
#10
Mai A Zaafan, Hala F Zaki, Amany I El-Brairy, Sanaa A Kenawy
OBJECTIVE: The current study aimed to investigate the modulatory effects of pyrrolidinedithiocarbamate (PDTC; 100 mg/kg) on bleomycin-induced pulmonary fibrosis (5 mg/kg; intratracheal) in rats. MATERIALS AND METHODS: Rats were randomly assigned to three groups: normal control, bleomycin control, and PDTC-treated groups. Lung injury was evaluated through histological examination, immunohistochemical detection of inducible nitric oxide synthase (iNOS) in lung tissue and evaluating the total and differential leucocytes count in bronchoalveolar lavage fluid...
October 31, 2016: Experimental Lung Research
https://www.readbyqxmd.com/read/27790299/effect-of-adipose-tissue-derived-stem-cell-injection-in-a-rat-model-of-urethral-fibrosis
#11
Premsant Sangkum, Faysal A Yafi, Hogyoung Kim, Mostafa Bouljihad, Manish Ranjan, Amrita Datta, Sree Harsha Mandava, Suresh C Sikka, Asim B Abdel-Mageed, Wayne J G Hellstrom
INTRODUCTION: We sought to evaluate the therapeutic effect of adi-pose tissue-derived stem cells (ADSCs) in a rat model of urethral fibrosis. METHODS: Eighteen (18) male Sprague-Dawley rats (300‒350 g) were divided into three groups: (1) sham (saline injection); (2) urethral fibrosis group (10 μg transforming growth factor beta 1 (TGF-β1) injection); and (3) ADSCs group (10 μg TGF-β1 injection plus 2 × 10(5) ADSCs). Rat ADSCs were harvested from rat inguinal fat pads...
May 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/27754128/os-25-03-overexpression-of-heterogeneous-nuclear-ribonucleoprotein-f-prevents-systemic-hypertension-and-kidney-injury-and-normalizes-renal-renin-angiotensin-system-genes-expression-in-type-2-diabetic-db-db-transgenic-mice
#12
John Chan, Chao-Sheng Lo, Yixuan Shi, Isabelle Chenier, Shao-Ling Zhang
OBJECTIVE: We aimed to investigate whether overexpression of heterogeneous nuclear ribonucleoprotein F (HnRNP F, a transcription factor) in renal proximal tubular cells (RPTCs) prevents systemic hypertension and kidney injury in type 2 diabetic db/db transgenic (Tg) mice and study its underlying mechanism (s) of action. DESIGN AND METHOD: Db/db hnRNP F-Tg mice (BKS strain) were generated by cross-breeding of db/m + mice with Tg mice specifically overexpressing HnRNP F in their RPTCs using kidney-specific androgen-regulated protein promoter (KAP2)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753900/os-01-09-markers-of-early-renal-impairment-in-prehypertension
#13
Ana Vrdoljak, Vanja Ivković, Sandra Karanović, Živka Dika, Ivana Vuković, Jelena Kos, Mario Laganović, Tajana Željković Vrkić, Margareta Fištrek Prlić, Ivan Pećin, Bojan Jelaković
OBJECTIVE: It was observed that glomerular hyperfiltration (GHF) is associated with progression of kidney disease in diabetics, patients in stage 1 hypertension (HT), and we found previously that eGFR decreased faster also in prehypertensives (PHT) with GHF. Here we analyzed whether GHF in PHT is associated with other biomarkers of early renal impairment. DESIGN AND METHOD: From 954 subjects enrolled in ENAH follow-up study, 371(137 m;mean age = 46years) were eligible for further analysis:100 with optimal,72 with normal BP,70 with PHT(high normal BP),and 129 with newly diagnosed untreated HT...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27753835/sy-05-1-fibro-inflammatory-changes-during-progression-of-systolic-diastolic-dysfunction-in-the-hypertensive-heart
#14
Hisashi Kai
There is increasing evidence that fibro-inflammatory changes play a role in variety of cardiovascular diseases. We created new rat models to investigate the role of fibro-inflammatory changes in the pathophysiology of systolic and diastolic dysfunction in hypertensive heart. (1) a model of a blood pressure (BP) surge was created by performing abdominal aortic constriction in Wistar-Kyoto rats. Aortic constriction rapidly increased BP and the high BP levels sustained. A BP surge transiently induced MCP-1 and TGF-beta induction, angiotensin converting enzyme activation, and macrophage infiltration, followed by left ventricular (LV) hypertrophy and perivascular reactive fibrosis...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27742777/pnpla3-overexpression-results-in-reduction-of-proteins-predisposing-to-fibrosis
#15
Piero Pingitore, Paola Dongiovanni, Benedetta Maria Motta, Marica Meroni, Saverio Massimo Lepore, Rosellina Margherita Mancina, Serena Pelusi, Cristina Russo, Andrea Caddeo, Giorgio Rossi, Tiziana Montalcini, Arturo Pujia, Olov Wiklund, Luca Valenti, Stefano Romeo
Liver fibrosis is a pathological scarring response to chronic hepatocellular injury and hepatic stellate cells (HSCs) are key players in this process. PNPLA3 I148M is a common variant robustly associated with liver fibrosis but the mechanisms underlying this association are unknown.We aimed to examine a) the effect of fibrogenic and proliferative stimuli on PNPLA3 levels in HSCs and b) the role of wild type and mutant PNPLA3 overexpression on markers of HSC activation and fibrosis.Here we show that PNPLA3 is upregulated by the fibrogenic cytokine transforming growth factor-beta (TGF-β), but not by platelet-derived growth factor (PDGF), and is involved in the TGF-β-induced reduction in lipid droplets in primary human HSCs...
October 13, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/27717904/protective-effects-of-seed-melon-extract-on-ccl4-induced-hepatic-fibrosis-in-mice
#16
Yuan-Yuan Zhan, Jin-Hui Wang, Xing Tian, Shi-Xiu Feng, Lin Xue, Li-Ping Tian
ETHNOPHARMACOLOGICAL RELEVANCE: Citrullus lanatus ssp. vulgaris var. megalaspermus Lin et Chao, was also known as watermelon belongs to family Cucurbitaceae, variously used as healthy food and in the treatment of liver and lungs problems. Currently, Citrullus lanatus has become a major economic crop of medicinal and edible effects with regional characteristics. AIM: This study was designed to evaluate the hepatoprotective and antioxidant activity of the seed melon (Citrullus lanatus ssp...
October 4, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27716320/bosentan-and-macitentan-prevent-the-endothelial-to-mesenchymal-transition-endomt-in-systemic-sclerosis-in-vitro-study
#17
Claudio Corallo, Maurizio Cutolo, Bashar Kahaleh, Gianluca Pecetti, Antonio Montella, Chiara Chirico, Stefano Soldano, Ranuccio Nuti, Nicola Giordano
BACKGROUND: Systemic sclerosis (SSc) is characterized by early vascular abnormalities and subsequent fibroblast activation to myofibroblasts, leading to fibrosis. Recently, endothelial-to-mesenchymal transition (EndoMT), a complex biological process in which endothelial cells lose their specific markers and acquire a mesenchymal or myofibroblastic phenotype, has been reported in SSc. In the present study, we evaluated the ability of endothelin-1 (ET-1) dual receptor antagonists bosentan (BOS) and macitentan (MAC) to antagonize EndoMT in vitro...
October 6, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27673327/roles-of-hdac2-and-hdac8-in-cardiac-remodeling-in-renovascular-hypertensive-rats-and-the-effects-of-valproic-acid-sodium
#18
Rui-Fang Li, Shan-Shan Cao, Wei-Jin Fang, Ying Song, Xue-Ting Luo, Hong-Yun Wang, Jian-Gang Wang
Recent studies indicate that histone deacetylases (HDACs) activity is associated with the development and progression of cardiac hypertrophy. In this study, we investigated the effects of a HDACs inhibitor, valproic acid sodium (VPA), on cardiac remodeling and the differential expression of HDACs in left ventricles (LVs) of renovascular hypertensive rats. Renovascular hypertension was induced in rats by the two-kidney two-clip (2K2C) method. Cardiac remodeling, heart function and the differential expression of HDACs were examined at different weeks after 2K2C operation...
September 27, 2016: Pharmacology
https://www.readbyqxmd.com/read/27647197/regulatory-mechanisms-of-the-molecular-pathways-in-fibrosis-induced-by-micrornas
#19
REVIEW
Cui Yang, Si-Dao Zheng, Hong-Jin Wu, Shao-Jun Chen
OBJECTIVE: MicroRNAs (miRNAs or miRs) play critical roles in the fibrotic process in different organs. We summarized the latest research progress on the roles and mechanisms of miRNAs in the regulation of the molecular signaling pathways involved in fibrosis. DATA SOURCES: Papers published in English from January 2010 to August 2015 were selected from the PubMed and Web of Science databases using the search terms "microRNA", "miR", "transforming growth factor β", "tgf β", "mitogen-activated protein kinase", "mapk", "integrin", "p38", "c-Jun NH2-terminal kinase", "jnk", "extracellular signal-regulated kinase", "erk", and "fibrosis"...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27644884/the-extracellular-matrix-regulates-the-effect-of-decorin-and-transforming-growth-factor-beta-2-tgf-%C3%AE-2-on-myoblast-migration
#20
K P Goetsch, C U Niesler
Muscular injuries that destroy the basal lamina result in poor functional recovery of skeletal muscle. This is due, in part, to the deposition of structural fibrotic proteins such as fibronectin and collagen by fibroblasts and other cells. Transforming growth factor-β (TGF-β) promotes fibrosis, whereas the proteoglycan decorin is known to act as an anti-fibrotic agent, in part via the binding and neutralization of TGF-β. We have previously established that decorin can alter the migratory response of skeletal muscle myoblasts to the extracellular matrix (ECM) factor collagen, but not fibronectin...
October 14, 2016: Biochemical and Biophysical Research Communications
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