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https://www.readbyqxmd.com/read/28647906/exogenous-gdf11-induces-cardiac-and-skeletal-muscle-dysfunction-and-wasting
#1
Teresa A Zimmers, Yanling Jiang, Meijing Wang, Tiffany W Liang, Joseph E Rupert, Ernie D Au, Francesco E Marino, Marion E Couch, Leonidas G Koniaris
Growth differentiation factor 11 (GDF11), a TGF-beta superfamily member, is highly homologous to myostatin and essential for embryonic patterning and organogenesis. Reports of GDF11 effects on adult tissues are conflicting, with some describing anti-aging and pro-regenerative activities on the heart and skeletal muscle while others opposite or no effects. Herein, we sought to determine the in vivo cardiac and skeletal muscle effects of excess GDF11. Mice were injected with GDF11 secreting cells, an identical model to that used to initially identify the in vivo effects of myostatin...
July 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28647356/optimizing-bone-morphogenic-protein-4-mediated-human-embryonic-stem-cell-differentiation-into-trophoblast-like-cells-using-fibroblast-growth-factor-2-and-transforming-growth-factor-%C3%AE-activin-nodal-signalling-inhibition
#2
Mariann Koel, Urmo Võsa, Kaarel Krjutškov, Elisabet Einarsdottir, Juha Kere, Juha Tapanainen, Shintaro Katayama, Sulev Ingerpuu, Viljar Jaks, Ulf-Hakan Stenman, Karolina Lundin, Timo Tuuri, Andres Salumets
Several studies have demonstrated that human embryonic stem cells (hESC) can be differentiated into trophoblast-like cells if exposed to bone morphogenic protein 4 (BMP4) and/or inhibitors of fibroblast growth factor 2 (FGF2) and the transforming growth factor beta (TGF-β)/activin/nodal signalling pathways. The goal of this study was to investigate how the inhibitors of these pathways improve the efficiency of hESC differentiation when compared with basic BMP4 treatment. RNA sequencing was used to analyse the effects of all possible inhibitor combinations on the differentiation of hESC into trophoblast-like cells over 12 days...
June 12, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28643928/calvarial-bone-development-and-suture-closure-in-dicer-deficient-mice
#3
P Atsawasuwan, M Ouibaidin, B Dalal, H Khan, A Mohammed
OBJECTIVE: To evaluate whether lack of Dicer during calvaria development would lead to dysmorphology of calvaria and suture closure in mice. MATERIALS AND METHODS: A conditional Dicer deficient under Osx promoter mouse was employed in this study. The 4- and 10-week-old conditional Dicer-deficient mice control littermates and Osx-cre transgenic mice were studied for calvarial bone morphology and suture closure. Dry skull, microcomputed tomography (μCT), histological and gene expression studies were investigated to evaluate the effect of Dicer deficiency on calvarial bone morphology and their related genes during calvaria development...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28643088/potential-therapeutic-applications-of-human-anti-m%C3%A3-llerian-hormone-amh-analogues-in-reproductive-medicine
#4
REVIEW
Vitaly A Kushnir, David B Seifer, David H Barad, Aritro Sen, Norbert Gleicher
Members of the transforming growth factor-beta (TGF-beta) superfamily are key regulators of various physiological processes. Anti-Müllerian hormone (AMH) which is also commonly known as Müllerian-inhibiting substance (MIS) is a member of the TGF-beta superfamily and an important regulator of reproductive organ differentiation and ovarian follicular development. While AMH has been used for diagnostic purposes as a biomarker for over 15 years, new potential therapeutic applications of recombinant human AMH analogues are now emerging as pharmacologic agents in reproductive medicine...
June 22, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28642549/focal-adhesion-kinase-regulates-hepatic-stellate-cell-activation-and-liver-fibrosis
#5
Xue-Ke Zhao, Lei Yu, Ming-Liang Cheng, Pulin Che, Yin-Ying Lu, Quan Zhang, Mao Mu, Hong Li, Li-Li Zhu, Juan-Juan Zhu, Meng Hu, Po Li, Yue-Dong Liang, Xin-Hua Luo, Yi-Ju Cheng, Zhi-Xiang Xu, Qiang Ding
Understanding the underlying molecular mechanisms of liver fibrosis is important to develop effective therapy. Herein, we show that focal-adhesion-kinse (FAK) plays a key role in promoting hepatic stellate cells (HSCs) activation in vitro and liver fibrosis progression in vivo. FAK activation is associated with increased expression of α-smooth muscle actin (α-SMA) and collagen in fibrotic live tissues. Transforming growth factor beta-1 (TGF-β1) induces FAK activation in a time and dose dependent manner. FAK activation precedes the α-SMA expression in HSCs...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28641514/clinically-relevant-biomarkers-in-acute-heart-failure-an-update
#6
Agnibh Mukherji, Uzair Ansari, Martin Borggrefe, Ibrahim Akin, Michael Behnes
Acute heart failure (AHF) has been one of the fields, where owing to difficulties in diagnosis, prognostic stratification and management the associated morbidity and mortality remains unusually high. The advent of novel biomarkers apart from the traditional B-type natriuretic peptide and N-terminal proBNP involved in myocardial injury, neuro-hormonal activation, and ventricular remodeling augurs immense hope in redefining our approach towards AHF. METHODS: Biomarkers like midregional proatrial natriuretic peptide, soluble ST2, highly-sensitive troponin, and midregional proadrenomedullin are some such examples that have passed various stages of substantiation while there is an array of potential biomarkers in nascent stages like osteopontin, CTGF, GDF-15 and TGF beta-1 awaiting further reiteration...
June 22, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28640248/voluntary-distance-running-prevents-tnf-mediated-liver-injury-in-mice-through-alterations-of-the-intrahepatic-immune-milieu
#7
Yvonne Huber, Nadine Gehrke, Jana Biedenbach, Susanne Helmig, Perikles Simon, Beate K Straub, Ina Bergheim, Tobias Huber, Detlef Schuppan, Peter R Galle, Marcus A Wörns, Marcus Schuchmann, Jörn M Schattenberg
Physical activity confers a broad spectrum of health benefits. Beyond the obvious role in metabolically driven diseases, the role of physical activity in acute liver injury is poorly explored. To study the role of physical activity in acute liver injury, a novel model of voluntary distance running in mice was developed and mice were subjected to acute liver injury induced by N-galactosamine (GalN) and lipopolysaccharide (LPS). Analyses included histological stains, immunoblotting, qRT-PCR and FACS analysis...
June 22, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28638997/follistatin-treatment-suppresses-serca1b-levels-independently-of-other-players-of-calcium-homeostasis-in-c2c12-myotubes
#8
János Fodor, Adrienn Gomba-Tóth, Tamás Oláh, János Almássy, Ernő Zádor, László Csernoch
Follistatin (FS) is a high affinity activin-binding protein, neutralizing the effects of the Transforming Growth Factor-beta (TGF-β) superfamily members, as myostatin (MSTN). Since MSTN emerged as a negative regulator, FS has been considered as a stimulator of skeletal muscle growth and differentiation. Here, we studied the effect of FS administration on the Ca(2+)-homeostasis of differentiating C2C12 skeletal muscle cells. FS-treatment increased the fusion index, the size of terminally differentiated myotubes, and transiently elevated the expression of the calcium-dependent protein phosphatase, calcineurin, at the beginning of differentiation...
June 21, 2017: Journal of Muscle Research and Cell Motility
https://www.readbyqxmd.com/read/28638279/preventive-actions-of-allergen-immunotherapy-the-facts-and-the-effects-in-search-of-evidence
#9
REVIEW
Irene Martignago, Cristoforo Incorvaia, Erminia Ridolo
Allergen immunotherapy (AIT) is the only treatment that works on the causes of allergy. Available AIT nowadays are subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT) for allergic rhinitis and asthma, while for allergy to Hymenoptera venom only subcutaneous route is recommended. A bulk of trials and meta-analyses demonstrated that efficacy and safety of AIT in decreasing allergic clinical symptoms and use of rescue medications, while its preventive capacity is yet under investigation. The most important of these effects is the prevention of potentially fatal anaphylactic reactions to Hymenoptera stings by venom immunotherapy (VIT)...
2017: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/28638086/wnt2b-attenuates-hscs-activation-and-liver-fibrosis-through-negative-regulating-tlr4-signaling
#10
Yi Yuan, Qiuju Han, Siyu Li, Zhigang Tian, Jian Zhang
The Wingless-type MMTV integration site family member 2b (Wnt2b) has been found to be a principal mediator of liver development and regeneration. However, the significance of Wnt2b in the pathogenesis of fibrosis-related liver diseases remains undefined. Here, we report that Wnt2b was highly expressed in the fibrotic liver tissues, exhibiting protective effects against activation of hepatic stellate cells (HSCs) and fibrosis progression. We identified a negative regulation of Wnt2b on the toll-like receptor 4 (TLR4) activation-mediated pro-fibrogenic effects...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28635357/hypertrophy-of-the-ligamentum-flavum-and-expression-of-transforming-growth-factor-beta
#11
Aierken Amudong, Aikeremujiang Muheremu, Tuerhongjiang Abudourexiti
Objective To explore the relationship between cellular apoptosis and hypertrophy of the ligamentum flavum in the lumbar region. Methods Thirty patients with lumbar spinal stenosis were evaluated. Hypertrophy of the ligamentum flavum was present in 15 patients and absent in 15. Hematoxylin-eosin staining and transforming growth factor beta (TGF-β) immunohistochemical testing were applied to compare these two groups. Results Derangement of fibrous alignment, fibrocartilage changes, and infiltration of inflammatory cells were observed in the patients with hypertrophy of the ligamentum flavum, while fibrous alignment was normal and few inflammatory cells were observed in patients without hypertrophy...
January 1, 2017: Journal of International Medical Research
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
#12
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
#13
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/28629082/influence-of-residual-composition-on-the-structure-and-properties-of-extracellular-matrix-derived-hydrogels
#14
Jesús A Claudio-Rizo, Magdalena Rangel-Argote, Laura E Castellano, Jorge Delgado, José L Mata-Mata, Birzabith Mendoza-Novelo
In this work, hydrolysates of extracellular matrix (hECM) were obtained from rat tail tendon (TR), bovine Achilles tendon (TAB), porcine small intestinal submucosa (SIS) and bovine pericardium (PB), and they were polymerized to generate ECM hydrogels. The composition of hECM was evaluated by quantifying the content of sulphated glycosaminoglycans (sGAG), fibronectin and laminin. The polymerization process, structure, physicochemical properties, in vitro degradation and biocompatibility were studied and related to their composition...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627979/association-between-transforming-growth-factor-beta-1-gene-single-nucleotide-polymorphisms-and-knee-osteoarthritis-susceptibility-in-a-chinese-han-population
#15
Ning Lu, Jianwei Lu, Chenhe Zhou, FuHua Zhong
Objective To investigate associations between single polymorphisms (SNPs) rs1800469 and rs1982073 in the transforming growth factor-β1 gene ( TGF-β1) and knee osteoarthritis (OA) susceptibility in a Chinese Han population. Methods TGF-β1 rs1800469 and rs1982073 were genotyped in patients with knee OA and age- and sex-matched OA-free controls from a Chinese Han population. The association was further analyzed according to gender and age. Results A total of 765 patients with knee OA and 780 controls were included...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28627741/proteomics-approach-to-identify-novel-metastatic-bone-markers-from-the-secretome-of-pc-3-prostate-cancer-cells
#16
EunJi Sung, Oh Kwang Kwon, Jae-Mok Lee, Sangkyu Lee
Prostate cancer is the leading type of cancer diagnosed, and the most frequent cause of worldwide male cancer-related deaths annually. The limitations of current prostate cancer screening tests demand the identification of novel biomarkers for the early diagnosis of prostate cancer bone metastasis. In the present study, we performed a proteomic analysis of secreted proteins from the prostate cancer bone metastasis cell line, PC-3, and the normal prostate cell line, RWPE-1. We thus quantified 917 proteins, of which 68 were found to be secreted at higher levels by PC-3 than by RWPE-1 cells via LC-MS/MS...
June 19, 2017: Electrophoresis
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
#17
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/28625142/proteotoxic-stress-desensitizes-tgf-beta-signaling-through-receptor-downregulation-in-retinal-pigment-epithelial-cells
#18
X Tan, C Chen, Y Zhu, J Deng, X Qiu, S Huang, F Shang, B Cheng, Y Liu
BACKGROUND: Transforming growth factor (TGFβ)-induced epithelial-mesenchymal transition (EMT) and proteotoxic stress are two main contributors of intraocular fibrotic disorders, including proliferative vitreoretinopathy (PVR) and proliferative diabetic retinopathy (PDR). However, how these two factors communicate with each other is not well-characterized. OBJECTIVE: The aim was to investigate the regulatory role of proteotoxic stress on TGFβ signaling in retinal pigment epithelium...
June 19, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28622591/targeting-proinflammatory-cytokines-oxidative-stress-tgf-%C3%AE-1-and-stat-3-by-rosuvastatin-and-ubiquinone-to-ameliorate-trastuzumab-cardiotoxicity
#19
Ahmed M Kabel, Abeer A Elkhoely
The aim of this study was to assess the possible modulatory effects of rosuvastatin and/or ubiquinone on trastuzumab (TRZ)-induced cardiotoxicity in mice. One hundred and twenty mice were divided into six equal groups as follows: control group; TRZ group; TRZ+carboxymethyl cellulose group; TRZ+rosuvastatin group; TRZ+Ubiquinone group and TRZ+rosuvastatin+Ubiquinone group. Serum creatine kinase (CK-MB), lactate dehydrogenase (LDH), troponin I and N-terminal pro-B-type natriuretic peptide (NT-pro BNP) were measured...
June 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28621668/blocking-epithelial-to-mesenchymal-transition-in-glioblastoma-with-a-sextet-of-repurposed-drugs-the-eis-regimen
#20
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
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