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https://www.readbyqxmd.com/read/28545810/thymic-stromal-lymphopoietin-and-apocynin-alter-the-expression-of-airway-remodeling-factors-in-human-rhinovirus-infected-cells
#1
Joanna Wieczfinska, Rafal Pawliczak
Airway remodeling is a characteristic of bronchial asthma. The process involves the expression of many genes, such as transforming growth factor-beta (TGF-β), tissue inhibitors of metalloproteinases (TIMP-1), MMP and arginase. Human rhinovirus (HRV) is known to cause asthma exacerbations, and viral infections might be involved in the development of airway remodeling. Therefore, the aim of this study was to determine the influence of HRV on the genes involved in airway remodeling and to examine the impact of thymic stromal lymphopoietin (TSLP) and contribution of oxidative stress on airway remodeling in the context of HRV infection...
May 16, 2017: Immunobiology
https://www.readbyqxmd.com/read/28529481/topical-ophthalmic-formulation-of-trichostatin-a-and-surr9-c84a-for-quick-recovery-post-alkali-burn-of-corneal-haze
#2
Kislay Roy, Chun Hei Antonio Cheung, Rupinder K Kanwar, Rajat Sandhir, Jagat R Kanwar
Alkali burn injury is a true ocular emergency of the conjunctiva and cornea that requires immediate precision. Lack of an immediate therapy can lead to a substantial damage in the ocular surface and anterior segment further causing visual impairment and disfigurement. We explored the regenerative capability of dominant negative survivin protein (SurR9-C84A) and histone deacetylase inhibitor trichostatin-A (TSA) in vivo, in a rat alkali burn model. A topical insult in rat eyes with NaOH led to degradation of the conjunctival and corneal epithelium...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28512472/pulsed-electromagnetic-field-regulates-microrna-21-expression-to-activate-tgf-%C3%AE-signaling-in-human-bone-marrow-stromal-cells-to-enhance-osteoblast-differentiation
#3
Nagarajan Selvamurugan, Zhiming He, Daniel Rifkin, Branka Dabovic, Nicola C Partridge
Pulsed electromagnetic fields (PEMFs) have been documented to promote bone fracture healing in nonunions and increase lumbar spinal fusion rates. However, the molecular mechanisms by which PEMF stimulates differentiation of human bone marrow stromal cells (hBMSCs) into osteoblasts are not well understood. In this study the PEMF effects on hBMSCs were studied by microarray analysis. PEMF stimulation of hBMSCs' cell numbers mainly affected genes of cell cycle regulation, cell structure, and growth receptors or kinase pathways...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28507001/p38-mapk-as-an-essential-regulator-of-dorsal-ventral-axis-specification-and-skeletogenesis-during-sea-urchin-development-a-re-evaluation
#4
Maria Dolores Molina, Magali Quirin, Emmanuel Haillot, Felipe Jimenez, Aline Chessel, Thierry Lepage
Dorsal-ventral axis formation in the sea urchin embryo relies on the asymmetrical expression of the TGF-beta Nodal. The p38-MAPK pathway has been proposed to be essential for dorsal-ventral axis formation by acting upstream of nodal expression. Herein, we report that, in contrast to previous studies that used pharmacological inhibitors of p38, manipulating the activity of p38 by genetic means has no obvious impact on morphogenesis. Instead, we discovered that p38 inhibitors strongly disrupt specification of all germ layers by blocking signalling from the Nodal receptor and by interfering with the ERK pathway...
May 15, 2017: Development
https://www.readbyqxmd.com/read/28495868/transforming-growth-factor-beta-1-tgf-%C3%AE-1-stimulates-collagen-synthesis-in-cultured-rainbow-trout-cardiac-fibroblasts
#5
Elizabeth F Johnston, Todd E Gillis
Cold acclimation of rainbow trout, Oncorhynchus mykiss, causes collagen to increase within the extracellular matrix (ECM) of the myocardium, while warm acclimation has the opposite effect. The mechanism responsible for this remodeling response is not known. In mammals, transforming growth factor beta-1 (TGF-β1) stimulates collagen deposition within the myocardial ECM. Therefore, we hypothesized that TGF-β1 regulates trout myocardial ECM turnover and predicted that TGF-β1 would induce collagen deposition in cultured rainbow trout cardiac fibroblasts...
May 11, 2017: Journal of Experimental 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
#6
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
#7
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/28458020/signaling-by-growth-differentiation-factor-5-through-the-bone-morphogenetic-protein-receptor-type-ib-protects-neurons-against-kainic-acid-induced-neurodegeneration
#8
Yuanzheng Zhao, Min Zhang, Hengfang Liu, Jianping Wang
Growth/differentiation factor-5 (GDF-5), a member of the transforming growth factor-beta (TGF-β) superfamily, has been shown to protect rat dopaminergic neurons against insult both in embryonic neuronal culture and in Parkinson's disease models. However, whether GDF-5 exerts neuroprotective effects in hippocampal neurons is unclear. Here, we show that both mRNA levels and protein levels of GDF-5 are decreased in the mouse hippocampus upon kainic acid (KA) treatment. KA induced dramatic neuronal loss specifically in the cornu ammonis 1 (CA1) and CA3 areas of the mouse hippocampus, while intracerebral infusion of GDF-5 prevented this neuronal loss...
April 27, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28452702/effect-of-doxycycline-on-epithelial-mesenchymal-transition-via-the-p38-smad-pathway-in-respiratory-epithelial-cells
#9
Jae-Min Shin, Ju-Hyung Kang, Seoung-Ae Lee, Il-Ho Park, Heung-Man Lee
PURPOSE: Doxycycline has antibacterial and anti-inflammatory effects, and it also suppresses collagen biosynthesis. This study aimed to confirm the effects and mechanism of doxycycline on transforming growth factor (TGF) beta 1 induced epithelial-mesenchymal transition and cell migration in A549 and primary nasal epithelial cells. METHODS: A 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl-tetrazolium bromide assay and phalloidin-fluorescein isothiocyanate staining were used to evaluate cytotoxicity and cellular morphologic changes...
March 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28441080/color-coded-intravital-imaging-demonstrates-a-transforming-growth-factor-%C3%AE-tgf-%C3%AE-antagonist-selectively-targets-stromal-cells-in-a-human-pancreatic-cancer-orthotopic-mouse-model
#10
Takashi Murakami, Yukihiko Hiroshima, Kentaro Miyake, Ho Kyoung Hwang, Tasuku Kiyuna, Jonathan C DeLong, Thinzar M Lwin, Ryusei Matsuyama, Ryutaro Mori, Takafumi Kumamoto, Takashi Chishima, Kuniya Tanaka, Yasushi Ichikawa, Michael Bouvet, Itaru Endo, Robert M Hoffman
Pancreatic cancer is a recalcitrant malignancy, partly due to desmoplastic stroma which stimulates tumor growth, invasion, and metastasis, and inhibits chemotherapeutic drug delivery. Transforming growth factor-β (TGF-β) has an important role in the formation of stromal desmoplasia. The present study describes the ability of color-coded intravital imaging to demonstrate the efficacy of a TGF-β inhibitor to target stroma in an orthotopic mouse model of pancreatic cancer. The BxPC-3 human pancreatic adenocarcinoma cell line expressing green fluorescent protein (GFP), which also has a high TGF-β expression level, was used in an orthotopic model in transgenic nude mice ubiquitously expressing red fluorescent protein (RFP)...
May 19, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28438834/rankl-cytokine-enhances-tnf-induced-osteoclastogenesis-independently-of-tnf-receptor-associated-factor-traf-6-by-degrading-traf3-in-osteoclast-precursors
#11
Zhenqiang Yao, Wei Lei, Rong Duan, Yanyun Li, Lu Luo, Brendan F Boyce
Cytokines, including receptor activator of nuclear factor kappa B ligand (RANKL) and TNF, induce increased osteoclast (OC) formation and bone loss in postmenopausal osteoporosis and inflammatory arthritides. RANKL and TNF can independently induce OC formation in vitro from WT OC precursors via TNF receptor-associated factor (TRAF) adaptor proteins, which bind to their receptors. Of these, only TRAF6 is required for RANKL-induced osteoclastogenesis in vitro. However, the molecular mechanisms involved remain incompletely understood...
April 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28433746/transforming-growth-factor-beta-1-signaling-regulates-neuroinflammation-and-apoptosis-in-mild-traumatic-brain-injury
#12
Rachel K Patel, Nithisha Prasad, Ram Kuwar, Debanjan Haldar, P M Abdul-Muneer
Mild Traumatic brain injury (mTBI) is a low-level injury, which often remains undiagnosed, and in most cases it leads to death and disability as it advances as secondary injury. Therefore, it is important to study the underlying signaling mechanisms of mTBI-associated neurological ailments. While transforming growth factor-beta1 (TGF-β1) has a significant role in inflammation and apoptosis in myriads of other pathophysiological conditions, the precise function of increased TGF-β1 after mTBI is unknown. In this study, our objective is to study the physiological relevance and associated mechanisms of TGF-β1-mediated inflammation and apoptosis in mTBI...
April 19, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28423042/transforming-growth-factor-%C3%AE-1-enhances-heme-oxygenase-1-expression-in-human-synovial-fibroblasts-by-inhibiting-microrna-519b-synthesis
#13
Shu-Jui Kuo, Wei-Hung Yang, Shan-Chi Liu, Chun-Hao Tsai, Horng-Chaung Hsu, Chih-Hsin Tang
BACKGROUND: Osteoarthritis (OA) is manifested by synovial inflammation and cartilage destruction that is directly linked to synovitis, joint swelling and pain. In the light of the role of synovium in the pathogenesis and the symptoms of OA, synovium-targeted therapy is a promising strategy to mitigate the symptoms and progression of OA. Transforming growth factor beta 1 (TGF-β1), a secreted homodimeric protein, possesses unique and potent anti-inflammatory and immune-regulatory properties in many cell types...
2017: PloS One
https://www.readbyqxmd.com/read/28405157/decitabine-reverses-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-in-non-small-cell-lung-cancer-by-regulating-mir-200-zeb-axis
#14
Nan Zhang, Yanyang Liu, Yuyi Wang, Maoyuan Zhao, Li Tu, Feng Luo
OBJECTIVE: Epithelial-mesenchymal transition (EMT) is a crucial driver of tumor progression. Tumor growth factor-beta 1 (TGF-β1) is an important factor in EMT induction in tumorigenesis. The targeting of EMT may, therefore, represent a promising approach in anticancer treatment. METHODS: In this study, we determined the effect of decitabine, a DNA methyltransferase inhibitor, on TGF-β1-induced EMT in non-small-cell lung cancer (NSCLC) PC9 and A549 cells. We also assessed the involvement of the miR-200/ZEB axis...
2017: Drug Design, Development and Therapy
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
#15
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/28397725/transforming-growth-factor-beta-1-involved-in-the-pathogenesis-of-endometriosis-through-regulating-expression-of-vascular-endothelial-growth-factor-under-hypoxia
#16
Yue-Xin Yu, Yin-Ling Xiu, Xi Chen, Ya-Li Li
BACKGROUND: Endometriosis (EMs) is a common gynecological disorder characterized by endometrial-like tissue outside the uterus. Hypoxia induces the expression of many important downstream genes to regulate the implantation, survival, and maintenance of ectopic endometriotic lesions. Transforming growth factor-beta 1 (TGF-β1) plays a major role in the etiology of EMs. We aimed to determine whether TGF-β1 affects EMs development and progression and its related mechanisms in hypoxic conditions...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28394081/the-effect-of-low-level-laser-therapy-as-an-adjunct-to-non-surgical-periodontal-treatment-on-gingival-crevicular-fluid-levels-of-transforming-growth-factor-beta-1-tissue-plasminogen-activator-and-plasminogen-activator-inhibitor-1-in-smoking-and-non-smoking
#17
F Pamuk, M Lütfioğlu, A Aydoğdu, C Z Koyuncuoglu, E Cifcibasi, O S Badur
BACKGROUND AND OBJECTIVE: This study aimed to investigate the effects of low-level laser therapy (LLLT) as an adjunct to scaling and root planing (SRP) on smoking and non-smoking patients with chronic periodontitis. MATERIAL AND METHODS: The study was conducted using a split-mouth design with 30 patients with chronic periodontitis (15 smokers, 15 non-smokers) and 30 healthy individuals matched for age, sex and smoking status as controls. Groups were constituted as follows: Cp+SRP+Sham: non-smokers with chronic periodontitis treated with SRP; Cp+SRP+LLLT: non-smokers with chronic periodontitis treated with SRP+LLLT; SCp+SRP+Sham: smokers with chronic periodontitis treated with SRP; SCp+SRP+LLLT: smokers with chronic periodontitis treated with SRP+LLLT; C: control group comprised of periodontally healthy non-smokers; SC: control group comprised of periodontally healthy smokers...
April 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28389561/tgf-beta-1-induced-cd44v6-nox4-signaling-in-pathogenesis-of-idiopathic-pulmonary-fibrosis
#18
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/28386352/clusterin-signals-via-apoer2-vldlr-and-induces-meiosis-of-male-germ-cells
#19
Muhammad Assad Riaz, Angelika Stammler, Mareike Borgers, Lutz Konrad
Clusterin (CLU) is a ubiquitously expressed heterodimeric glycoprotein that is involved in a variety of functions like cell-cell interactions, apoptosis, epithelial-mesenchymal transition, carcinogenesis, and chaperone function. In the testis, CLU is strongly expressed especially in Sertoli cells but very little is known about its testicular function, regulation of secretion and most enigmatic, its receptor(s). In this study, we approached these questions with a special emphasis on the link between CLU and meiosis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28386343/signaling-by-tgf-betas-in-tubule-cultures-of-adult-rat-testis
#20
Kai-Hui Chan, Sebastian P Galuska, Pradeep Kumar Kudipudi, Mohammad Assad Riaz, Kate L Loveland, Lutz Konrad
Although signal transduction of transforming growth factor-betas (TGF-βs) is well characterized in individual cell types, data about TGF-β signaling in a cellular context is still scarce. In this study, we used ex vivo tubule cultures from adult rat testis to investigate TGF-β signaling. We show for the first time in testicular tubules, that TGF-βs also signal via the BMP type I receptors, with ALK2 used by TGF-β1 and ALK3 and ALK6 by TGF-β2. This signal transduction is mediated via Smad3 as well as via Smad1...
2017: American Journal of Translational Research
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