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https://www.readbyqxmd.com/read/28702326/rev-erb-co-regulates-muscle-regeneration-via-tethered-interaction-with-the-nf-y-cistrome
#1
Ryan D Welch, Chun Guo, Monideepa Sengupta, Katherine J Carpenter, Natalie A Stephens, Stacy A Arnett, Marvin J Meyers, Lauren M Sparks, Steven R Smith, Jinsong Zhang, Thomas P Burris, Colin A Flaveny
OBJECTIVE: The loss of skeletal muscle mass and strength are a central feature of traumatic injury and degenerative myopathies. Unfortunately, pharmacological interventions typically fail to stem the long-term decline in quality of life. Reduced Rev-Erb-mediated gene suppression in cultured C2C12 myoblasts has been shown to stimulate myoblast differentiation. Yet the mechanisms that allow Rev-Erb to pleiotropically inhibit muscle differentiation are not well understood. In this study, we sought to elucidate the role of Rev-Erb in the regulation of muscle differentiation and regeneration in vivo...
July 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28690889/imbalances-in-t-cell-related-transcription-factors-among-patients-with-hashimoto-s-thyroiditis
#2
Vahid Safdari, Ebrahim Alijani, Maryam Nemati, Abdollah Jafarzadeh
OBJECTIVES: Imbalances in effector T cell functioning have been associated with a number of autoimmune diseases, including Hashimoto's thyroiditis (HT). Differentiation of effector T helper (Th) 1, Th2, Th17 and regulatory T cell (Treg) lymphocytes is regulated by transcription factors, including Th1-specific T box (T-bet), GATA binding protein-3 (GATA3), retinoid-related orphan receptor (ROR)-α and forkhead box P3 (FOXP3). This study aimed to investigate Th1/Th2, Th1/Treg, Th2/Treg and Th17/Treg balances at the level of these transcription factors...
May 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28686700/rates-of-return-to-sorghum-and-millet-research-investments-a-meta-analysis
#3
Yacob A Zereyesus, Timothy J Dalton
Sorghum and millet grow in some of the most heterogeneous and austere agroecologies around the world. These crops are amongst the top five cereal sources of food and feed. Yet, few studies document the impact of sorghum and millet genetic enhancement. The Internal Rate of Return (ROR) is one of the most popular metrics used to measure the economic return on investment on agricultural research and development (R&D). This study conducted a meta-analysis of 59 sorghum and millet ROR estimates obtained from 25 sources published between 1958 and 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28681266/muscular-adverse-drug-reactions-associated-with-proton-pump-inhibitors-a-disproportionality-analysis-using-the-italian-national-network-of-pharmacovigilance-database
#4
Alice Capogrosso Sansone, Irma Convertino, Maria Teresa Galiulo, Stefano Salvadori, Stefania Pieroni, Tamara Knezevic, Stefania Mantarro, Alessandra Marino, Manfred Hauben, Corrado Blandizzi, Marco Tuccori
INTRODUCTION: Proton pump inhibitors (PPIs) have been implicated in the occurrence of moderate to severe myopathies in several case reports. AIM: This study was performed to assess the reporting risk of muscular adverse drug reactions (ADRs) associated with PPIs in the Italian National Network of Pharmacovigilance database. METHODS: A disproportionality analysis (case/non-case) was performed using spontaneous reports collected in the database between July 1983 and May 2016...
July 5, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28680141/the-lincrna-ror-mir-145-axis-promotes-invasion-and-metastasis-in-hepatocellular-carcinoma-via-induction-of-epithelial-mesenchymal-transition-by-targeting-zeb2
#5
Chen Li, Lu Lu, Bing Feng, Kai Zhang, Siqi Han, Daorong Hou, Longbang Chen, Xiaoyuan Chu, Rui Wang
Emerging evidence show that long noncoding RNAs (lncRNAs) play critical roles in tumor development. LincRNA-ROR (linc-ROR) is known to promote tumor progress in several human cancers, including hepatocellular carcinoma (HCC). Nevertheless, the roles of linc-ROR in HCC metastasis and its underlying mechanisms remain fully unclear. In the present study, we showed that linc-ROR was upregulated in HCC tissues and high linc-ROR expression level predicted poor prognosis. Functionally, linc-ROR significantly induced epithelial-mesenchymal transition (EMT), and increased in vitro invasion and in vivo metastasis of HCC cells...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28674930/trojan-horse-strategy-for-non-invasive-interference-of-clock-gene-in-the-oyster-crassostrea-gigas
#6
Laura Payton, Mickael Perrigault, Jean-Paul Bourdineaud, Anjara Marcel, Jean-Charles Massabuau, Damien Tran
RNA interference is a powerful method to inhibit specific gene expression. Recently, silencing target genes by feeding has been successfully carried out in nematodes, insects, and small aquatic organisms. A non-invasive feeding-based RNA interference is reported here for the first time in a mollusk bivalve, the pacific oyster Crassostrea gigas. In this Trojan horse strategy, the unicellular alga Heterocapsa triquetra is the food supply used as a vector to feed oysters with Escherichia coli strain HT115 engineered to express the double-stranded RNA targeting gene...
July 3, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28672989/altered-expression-of-regulatory-t-and-th17-cells-in-murine-bronchial-asthma
#7
Jianbo Zhu, Xiaoying Liu, Wenxia Wang, Xiuhe Ouyang, Wentao Zheng, Qingyuan Wang
Alteration of the careful balance of the ratio of Th1/Th2 cell subsets impacts immune function and plays an important role in the pathogenesis of asthma. There is little research on the impact of changes on the balance of the regulatory T (Treg)/Th17 subset ratio and its possible repercussions for asthma. This investigation used a murine model of asthma to measure the expression levels of Treg and Th17 cells and the levels of their transcription factors Foxp3 and retinoic acid receptor-related orphan nuclear receptor (ROR)γt in bronchial asthma while assessing indexes of airway inflammation...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28670633/the-orphan-nuclear-receptor-ror-alpha-and-group-3-innate-lymphoid-cells-drive-fibrosis-in-a-mouse-model-of-crohn-s-disease
#8
Bernard C Lo, Matthew J Gold, Michael R Hughes, Frann Antignano, Yanet Valdez, Colby Zaph, Kenneth W Harder, Kelly M McNagny
Fibrosis is the result of dysregulated tissue regeneration and is characterized by excessive accumulation of matrix proteins that become detrimental to tissue function. In Crohn's disease, this manifests itself as recurrent gastrointestinal strictures for which there is no effective therapy beyond surgical intervention. Using a model of infection-induced chronic gut inflammation, we show that Rora-deficient mice are protected from fibrosis; infected intestinal tissues display diminished pathology, attenuated collagen deposition and reduced fibroblast accumulation...
September 2, 2016: Science Immunology
https://www.readbyqxmd.com/read/28667162/regulation-of-th17-differentiation-by-ikk%C3%AE-dependent-and-independent-phosphorylation-of-ror%C3%AE-t
#9
Zhiheng He, Fei Wang, Jing Zhang, Subha Sen, Qihua Pang, Shengwei Luo, Yousang Gwack, Zuoming Sun
Transcription factor retinoid acid-related orphan receptor (ROR)γt transcriptionally regulates the genes required for differentiation of Th17 cells that mediate both protective and pathogenic immunity. However, little is known about the function of posttranslational modifications in the regulation of RORγt activity. Mass spectrometric analysis of immunoprecipitated RORγt from Th17 cells identified multiple phosphorylation sites. Systematic mutation analysis of the identified phosphorylation sites found that phosphorylation of S376 enhances whereas phosphorylation of S484 inhibits Th17 differentiation...
June 30, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28653802/safety-profile-of-h1-antihistamines-in-pediatrics-an-analysis-based-on-data-from-vigibase
#10
Domenico Motola, Monia Donati, Chiara Biagi, Elisabetta Calamelli, Francesca Cipriani, Mauro Melis, Luca Monaco, Alberto Vaccheri, Giampaolo Ricci
PURPOSE: H1-antihistamines are commonly used in infants and children for the relief of histamine-mediated symptoms in a variety of conditions. Little is known about their safety profile in these patients. We performed a comparative analysis of the safety profiles of H1-antihistamines using data from the WHO database (VigiBase). METHODS: We selected adverse drug reaction (ADR) reports on H1-antihistamines in children (0-16 years) up to June 2014 from VigiBase. ADRs were codified according to MedDRA terminology...
June 27, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28646789/data-mining-for-detecting-signals-of-adverse-drug-reactions-of-fluoxetine-using-the-korea-adverse-event-reporting-system-kaers-database
#11
Seonji Kim, Kyounghoon Park, Mi-Sook Kim, Bo Ram Yang, Hyun Jin Choi, Byung-Joo Park
Selective serotonin reuptake inhibitors (SSRIs) have become one of the most broadly used medications in psychiatry. Fluoxetine is the first representative antidepressant SSRI drug approved by the Food and Drug Administration (FDA) in 1987. Safety information on fluoxetine use alone was less reported than its combined use with other drugs. There were no published papers on adverse drug reactions (ADRs) of fluoxetine analyzing spontaneous adverse events reports. We detected signals of the adverse drug reactions of fluoxetine by data mining using the Korea Adverse Events Reporting System (KAERS) database...
June 13, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28646017/ror%C3%AE-modulates-semaphorin-3e-transcription-and-neurovascular-interaction-in-pathological-retinal-angiogenesis
#12
Ye Sun, Chi-Hsiu Liu, Zhongxiao Wang, Steven S Meng, Samuel B Burnim, John Paul SanGiovanni, Theodore M Kamenecka, Laura A Solt, Jing Chen
Pathological proliferation of retinal blood vessels commonly causes vision impairment in proliferative retinopathies, including retinopathy of prematurity. Dysregulated crosstalk between the vasculature and retinal neurons is increasingly recognized as a major factor contributing to the pathogenesis of vascular diseases. Class 3 semaphorins (SEMA3s), a group of neuron-secreted axonal and vascular guidance factors, suppress pathological vascular growth in retinopathy. However, the upstream transcriptional regulators that mediate the function of SEMA3s in vascular growth are poorly understood...
June 23, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28641219/comparison-of-brand-versus-generic-antiepileptic-drug-adverse-event-reporting-rates-in-the-u-s-food-and-drug-administration-adverse-event-reporting-system-faers
#13
Md Motiur Rahman, Yasser Alatawi, Ning Cheng, Jingjing Qian, Annya V Plotkina, Peggy L Peissig, Richard L Berg, David Page, Richard A Hansen
OBJECTIVE: Despite the cost saving role of generic anti-epileptic drugs (AEDs), debate exists as to whether generic substitution of branded AEDs may lead to therapeutic failure and increased toxicity. This study compared adverse event (AE) reporting rates for brand vs. authorized generic (AG) vs. generic AEDs. Since AGs are pharmaceutically identical to brand but perceived as generics, the generic vs. AG comparison minimized potential bias against generics. METHODS: Events reported to the U...
June 13, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28637769/potential-contribution-of-tandem-circadian-enhancers-to-nonlinear-oscillations-in-clock-gene-expression
#14
Isao T Tokuda, Akihiko Okamoto, Ritsuko Matsumura, Toru Takumi, Makoto Akashi
Limit cycle oscillations require the presence of nonlinear processes. Although mathematical studies have long suggested that multiple nonlinear processes are required for autonomous circadian oscillation in clock gene expression, the underlying mechanism remains controversial. Here, we experimentally show that cell-autonomous circadian transcription of a mammalian clock gene requires a functionally interdependent tandem E-box motif; the lack of either of the two E-boxes results in arrhythmic transcription. Although previous studies have indicated the role of the tandem motifs in increasing circadian amplitude, enhancing amplitude does not explain the mechanism for limit cycle oscillations in transcription...
June 21, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28635401/inhibition-of-long-non-coding-rna-ror-reverses-resistance-to-tamoxifen-by-inducing-autophagy-in-breast-cancer
#15
Yuehua Li, Baohong Jiang, Hongbo Zhu, Xiaofei Qu, Liqin Zhao, Yeru Tan, Yiling Jiang, Mingchu Liao, Xiaoping Wu
This study explored the mechanism underlying long non-coding RNA ROR regulating autophagy on Tamoxifen resistance in breast cancer. Cancer tissues and adjacent normal tissues were collected from 74 breast cancer patients. Human breast cancer BT474 cells were assigned into blank, phosphate buffered saline, Tamoxifen, negative control + Tamoxifen, siROR + Tamoxifen, 3-methyladenine + Tamoxifen, and siROR + 3-methyladenine + TA groups. The expression of long non-coding RNA ROR and expressions of multi-drug resistance-associated P-glycoprotein and glutathione S-transferase-π messenger RNA were detected using quantitative real-time polymerase chain reaction...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28625476/feedback-loops-interlocked-at-competitive-binding-sites-amplify-and-facilitate-genetic-oscillations
#16
Koichiro Uriu, Hajime Tei
Positive and negative feedback loops are often present in regulatory networks for genetic oscillations. Relative time scales and integration of these feedback loops are key to robust oscillations in expression levels. Using examples from the circadian clock and synthetic genetic oscillators, we study positive and negative feedback loops interlocked at competitive binding sites. In the mammalian circadian clock, a key clock gene Bmal1 is regulated by the activator ROR and the repressor REV-ERB. Conversely, Bmal1 activates both of them, forming interlocked feedback loops...
June 15, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28612433/musculin-inhibits-human-t-helper-17-cell-response-to-interleukin-2-by-controlling-stat5b-activity
#17
Veronica Santarlasci, Alessio Mazzoni, Manuela Capone, Maria Caterina Rossi, Laura Maggi, Gianni Montaini, Beatrice Rossettini, Rolando Cimaz, Matteo Ramazzotti, Giusi Barra, Raffaele De Palma, Enrico Maggi, Francesco Liotta, Lorenzo Cosmi, Sergio Romagnani, Francesco Annunziato
We recently demonstrated that human T-helper (Th) 17 cells, unlike Th1 cells, do not proliferate in response to T-cell receptor stimulation, mainly because of their reduced capacity to produce and respond to IL-2. In this study, we show that their lower responsiveness to IL-2 is due to the selective expression of Musculin (MSC), a member of the basic helix-loop-helix transcription factors. We show that MSC expression in human Th17 cells is retinoic acid orphan receptor (ROR)γt-dependent, and allows the upregulation of PPP2R2B, a regulatory member of the protein phosphatase 2A (PP2A) enzyme...
June 14, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28607111/a-distinct-inhibitory-function-for-mir-18a-in-th17-cell-differentiation
#18
Misty M Montoya, Julia Maul, Priti B Singh, Heather H Pua, Frank Dahlström, Nanyan Wu, Xiaozhu Huang, K Mark Ansel, Dirk Baumjohann
Th17 cell responses orchestrate immunity against extracellular pathogens but also underlie autoimmune disease pathogenesis. In this study, we uncovered a distinct and critical role for miR-18a in limiting Th17 cell differentiation. miR-18a was the most dynamically upregulated microRNA of the miR-17-92 cluster in activated T cells. miR-18a deficiency enhanced CCR6(+) RAR-related orphan receptor (ROR)γt(+) Th17 cell differentiation in vitro and increased the number of tissue Th17 cells expressing CCR6, RORγt, and IL-17A in airway inflammation models in vivo...
July 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28606480/sphingosine-kinase-2-in-autoimmune-inflammatory-disease-and-the-development-of-sphingosine-kinase-2-inhibitors
#19
REVIEW
Nigel J Pyne, David R Adams, Susan Pyne
The purpose of this Opinion is to present a case for targeting sphingosine kinase 2 (SK2) in autoimmune/inflammatory disease. Data obtained using Sphk2(-/-) mice suggest that SK2 is an anti-inflammatory enzyme, although this might be misleading because of a compensatory increase in the expression of a second isoform, sphingosine kinase 1 (SK1), which functions as a proinflammatory enzyme. SK2 is involved in regulating interleukin (IL)-12/interferon gamma (IFN-γ) and histone deacetylase-1/2 (HDAC-1/2) signalling and, potentially, retinoid-related orphan receptor gamma t (ROR-γt) stability linked with T helper (Th) 17 cell polarisation...
June 9, 2017: Trends in Pharmacological Sciences
https://www.readbyqxmd.com/read/28603878/the-reactivity-of-nhc-alane-adducts-towards-n-heterocyclic-carbenes-and-cyclic-alkyl-amino-carbenes-ring-expansion-ring-opening-and-al-h-bond-activation
#20
Udo Radius, Heidi Schneider, Andreas Hock, Rüdiger Bertermann
The synthesis of the mono NHC alane adducts of the type (NHC)·AlH3 (NHC = Me2Im 1, Me2ImMe 2, iPr2Im 3 and 3-d3, iPr2ImMe 4, Dipp2Im 10) and (NHC)·AliBu2H (NHC = iPr2Im 11, Dipp2Im 12) as well as their reactivity towards different types of carbenes is presented. While the mono NHC adducts remain stable at elevated temperatures, ring expansion reaction occurs when (iPr2Im)·AlH3 3 is reacted with a second equivalent of the carbene iPr2Im to give (iPr2Im)·AlH(RER-iPr2ImH2) 6. In 6, {(iPr2Im}AlH} is inserted into the NHC ring...
June 12, 2017: Chemistry: a European Journal
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