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Taurine AND Transcription factor

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https://www.readbyqxmd.com/read/29674645/long-noncoding-rna-tug1-facilitates-osteogenic-differentiation-of-periodontal-ligament-stem-cells-via-interacting-with-lin28a
#1
Qin He, Shuangyan Yang, Xiuge Gu, Mengying Li, Chunling Wang, Fulan Wei
Periodontal ligament stem cells (PDLSCs) are mesenchymal stem cells derived from dental tissues with multidirectional differentiation potential and excellent self-renewing ability. Recently, long noncoding RNAs (lncRNAs) have been shown to play important roles in MSC osteogenic differentiation. In this study, we found that taurine upregulated gene 1 (TUG1), an evolutionarily conserved and widely present lncRNA was significantly upregulated in osteogenically induced PDLSCs compared to their undifferentiated counterparts...
April 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29523960/taurine-is-an-amino-acid-with-the-ability-to-activate-autophagy-in-adipocytes
#2
Hiroki Kaneko, Masaki Kobayashi, Yuhei Mizunoe, Maho Yoshida, Hiromine Yasukawa, Shunsuke Hoshino, Rei Itagawa, Takuma Furuichi, Naoyuki Okita, Yuka Sudo, Masato Imae, Yoshikazu Higami
Alterations in adipocyte characteristics are highly implicated in the pathology of obesity. In a recent article, we demonstrated that high-fat diet-induced obesity impairs lysosomal function, thereby suppressing autophagy in mice white adipose tissue. Taurine, an amino acid naturally contained in the normal diet and existing ubiquitously in tissues, has been reported to improve insulin resistance and chronic inflammation in animal models, but underlying mechanisms remain unclear. From these findings, we hypothesized that improvement of obese pathology by taurine may be mediated through recovery of autophagy...
March 9, 2018: Amino Acids
https://www.readbyqxmd.com/read/29508060/taurine-protects-noradrenergic-locus-coeruleus-neurons-in-a-mouse-parkinson-s-disease-model-by-inhibiting-microglial-m1-polarization
#3
Liyan Hou, Yuning Che, Fuqiang Sun, Qingshan Wang
Beyond nigrostriatal dopaminergic system, the noradrenergic locus coeruleus (LC/NE) neurons are also degenerated in patients with Parkinson's disease (PD), the second most common neurodegenerative disorder. We previously reported that microglia-mediated neuroinflammation contributes to LC/NE neurodegeneration. The purpose of this study is aimed to test whether taurine, an endogenous amino acid, could be able to protect LC/NE neurons through inhibition of microglial activation using paraquat and maneb-induced mouse PD model...
March 5, 2018: Amino Acids
https://www.readbyqxmd.com/read/29381405/the-influences-of-cholecystectomy-on-the-circadian-rhythms-of-bile-acids-as-well-as-the-enterohepatic-transporters-and-enzymes-systems-in-mice
#4
Fan Zhang, Yingting Duan, Lili Xi, Mengmeng Wei, Axi Shi, Yan Zhou, Yuhui Wei, Xinan Wu
Bile acids (BAs), the most important endogenous and signaling molecules regulate the target transporters and enzymes at transcriptional level, participate in a wide variety of processes throughout the entire gastrointestinal tract to orchestrate homeostasis in vivo. BAs and their metabolism and transportation appear to follow the clear circadian rhythms, and they are recently proposed also as the potential chronobiological signals that can affect the molecular clock mechanism. Cholecystectomy are believed to affect the circadian rhythms of BAs and the relevant enterohepatic transporters and enzymes systems and their regulatory signaling pathways, for the reason that the circadian cycle of gallbladder filling and emptying play a pivotal role in controlling the flow of bile into the intestine and the enterohepatic circulation of BAs...
January 30, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29180230/glucocorticoids-genes-and-brain-function
#5
REVIEW
Grzegorz R Juszczak, Adrian M Stankiewicz
The identification of key genes in transcriptomic data constitutes a huge challenge. Our review of microarray reports revealed 88 genes whose transcription is consistently regulated by glucocorticoids (GCs), such as cortisol, corticosterone and dexamethasone, in the brain. Replicable transcriptomic data were combined with biochemical and physiological data to create an integrated view of the effects induced by GCs. The most frequently reported genes were Errfi1 and Ddit4. Their up-regulation was associated with the altered transcription of genes regulating growth factor and mTORC1 signaling (Gab1, Tsc22d3, Dusp1, Ndrg2, Ppp5c and Sesn1) and progression of the cell cycle (Ccnd1, Cdkn1a and Cables1)...
March 2, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29144408/antioxidant-effect-of-barley-sprout-extract-via-enhancement-of-nuclear-factor-erythroid-2-related-factor-2-activity-and-glutathione-synthesis
#6
Yun-Hee Lee, Sou Hyun Kim, Seunghyun Lee, Kyung-Mi Kim, Jae-Chul Jung, Tae Gen Son, Sung Hwan Ki, Woo-Duck Seo, Jae-Hwan Kwak, Jin Tae Hong, Young-Suk Jung
We previously showed that barley sprout extract (BSE) prevents chronic alcohol intake-induced liver injury in mice. BSE notably inhibited glutathione (GSH) depletion and increased inflammatory responses, revealing its mechanism of preventing alcohol-induced liver injury. In the present study we investigated whether the antioxidant effect of BSE involves enhancing nuclear factor-erythroid 2 related factor 2 (Nrf2) activity and GSH synthesis to inhibit alcohol-induced oxidative liver injury. Mice fed alcohol for four weeks exhibited significantly increased oxidative stress, evidenced by increased malondialdehyde (MDA) level and 4-hydroxynonenal (4-HNE) immunostaining in the liver, whereas treatment with BSE (100 mg/kg) prevented these effects...
November 16, 2017: Nutrients
https://www.readbyqxmd.com/read/29101223/taurine-treatment-prevents-derangement-of-the-hepatic-%C3%AE-glutamyl-cycle-and-methylglyoxal-metabolism-in-a-mouse-model-of-classical-homocystinuria-regulatory-crosstalk-between-thiol-and-sulfinic-acid-metabolism
#7
Kenneth N Maclean, Hua Jiang, Stefanos Aivazidis, Eugene Kim, Colin T Shearn, Peter S Harris, Dennis R Petersen, Robert H Allen, Sally P Stabler, James R Roede
Cystathionine β-synthase-deficient homocystinuria (HCU) is a poorly understood, life-threatening inborn error of sulfur metabolism. Analysis of hepatic glutathione (GSH) metabolism in a mouse model of HCU demonstrated significant depletion of cysteine, GSH, and GSH disulfide independent of the block in trans-sulfuration compared with wild-type controls. HCU induced the expression of the catalytic and regulatory subunits of γ-glutamyl ligase, GSH synthase (GS), γ-glutamyl transpeptidase 1, 5-oxoprolinase (OPLAH), and the GSH-dependent methylglyoxal detoxification enzyme, glyoxalase-1...
November 3, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29052795/effects-of-glutamine-taurine-and-their-association-on-inflammatory-pathway-markers-in-macrophages
#8
Talita Sartori, Guilherme Galvão Dos Santos, Amanda Nogueira-Pedro, Edson Makiyama, Marcelo Macedo Rogero, Primavera Borelli, Ricardo Ambrósio Fock
The immune system is essential for the control and elimination of infections, and macrophages are cells that act as important players in orchestrating the various parts of the inflammatory/immune response. Amino acids play important role in mediating functionality of the inflammatory response, especially mediating macrophages functions and cytokines production. We investigated the influence of glutamine, taurine and their association on the modulation of inflammatory pathway markers in macrophages. The RAW 264...
October 20, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28766169/retinoid-acid-and-taurine-promote-neurod1-induced-differentiation-of-induced-pluripotent-stem-cells-into-retinal-ganglion-cells
#9
Li Huang, Mengfei Chen, Weizhong Zhang, Xuerong Sun, Bingqian Liu, Jian Ge
Induced pluripotent stem cells (iPSCs) possess the capacity to differentiate into multiple cell types including retinal neurons. Despite substantial progress in the transcriptional regulation of iPSC differentiation process, the efficiency of generation of retinal neurons from iPSCs is still low. In this study, we investigated the role of transcription factor NeuroD1 in the differentiation of iPSCs into retinal neurons. We observed that retrovirus-mediated NeuroD1 overexpression in iPSCs increased the efficiency of neuronal differentiation...
January 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28412885/antenatal-taurine-supplementation-in-fetal-rats-with-growth-restriction-improves-neural-stem-cell-proliferation-by-inhibiting-the-activities-of-rho-family-factors
#10
Yan Wang, Xiang-Wen Li, Jing Liu, Wei Fu
OBJECTIVE: To investigate whether antenatal taurine supplementation improves neural stem cell proliferation in rats with fetal growth restriction (FGR) through regulating the activity of Rho family factors. METHODS: FGR models were established via food restriction throughout pregnancy. Pregnant rats were randomly divided into the control group, the FGR group (given 40% of the normal daily feeding in the control group), and the Taurine group (FGR model treated with 300 mg/kg·d taurine from gestational day seven)...
May 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28229251/taurine-ameliorated-homocysteine-induced-h9c2-cardiomyocyte-apoptosis-by-modulating-endoplasmic-reticulum-stress
#11
Zhimin Zhang, Lianyou Zhao, Yanfen Zhou, Xuanhao Lu, Zhengqiang Wang, Jipeng Wang, Wei Li
Homocysteine (Hcy)-triggered endoplasmic reticulum (ER) stress-mediated endothelial cell apoptosis has been suggested as a cause of Hcy-dependent vascular injury. However, whether ER stress is the molecular mechanism linking Hcy and cardiomyocytes death is unclear. Taurine has been reported to exert cardioprotective effects via various mechanisms. However, whether taurine protects against Hcy-induced cardiomyocyte death by attenuating ER stress is unknown. This study aimed to evaluate the opposite effects of taurine on Hcy-induced cardiomyocyte apoptosis and their underlying mechanisms...
February 22, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/27760046/the-long-noncoding-rna-tug1-connects-metabolic-changes-with-kidney-disease-in-podocytes
#12
Szu Yuan Li, Katalin Susztak
An increasing amount of evidence suggests that metabolic alterations play a key role in chronic kidney disease (CKD) pathogenesis. In this issue of the JCI, Long et al. report that the long noncoding RNA (lncRNA) taurine-upregulated 1 (Tug1) contributes to CKD development. The authors show that Tug1 regulates mitochondrial function in podocytes by epigenetic targeting of expression of the transcription factor PPARγ coactivator 1α (PGC-1α, encoded by Ppargc1a). Transgenic overexpression of Tug1 specifically in podocytes ameliorated diabetes-induced CKD in mice...
November 1, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27527761/the-role-of-ca-2-mediated-signaling-pathways-on-the-effect-of-taurine-against-streptococcus-uberis-infection
#13
Bin Dai, Jinqiu Zhang, Ming Liu, Jinye Lu, Yuanshu Zhang, Yuanyuan Xu, Jinfeng Miao, Yulong Yin
To provide insight into the mechanisms of taurine attenuation of pro-inflammatory response in mouse mammary epithelial cell line (EpH4-Ev, purchased by ATCC, USA) after Streptococcus uberis (S. uberis, 0140J) challenge, we infected MECs with S. uberis (2.5×10(7)cfumL(-1), MOI=10) for 3h and quantified changes in TLR-2 and calcium (Ca(2+)) mediated signaling pathways. The results indicate that S. uberis infection significantly increases the expression of TLR-2, intracellular Ca(2+) levels, PLC-γ1 and PKC-α, the activities of transcription factors NF-κB and NFAT, and related cytokines (TNF-α, IL-1β, IL-6, G-CSF, IL-2, KC, IL-15, FasL, MCP-1, and LIX) in culture supernatants...
August 30, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27322952/activation-of-osmolyte-pathways-in-inflammatory-myopathy-and-duchenne-muscular-dystrophy-points-to-osmoregulation-as-a-contributing-pathogenic-mechanism
#14
Boel De Paepe, Jean-Jacques Martin, Sandrine Herbelet, Cecilia Jimenez-Mallebrera, Estibaliz Iglesias, Cristina Jou, Joachim Weis, Jan L De Bleecker
Alongside well-known nuclear factor κB (NFκB) and its associated cytokine networks, nuclear factor of activated T cells 5 (NFAT5), the master regulator of cellular osmoprotective programs, comes forward as an inflammatory regulator. To gain insight into its yet unexplored role in muscle disease, we studied the expression of NFAT5 target proteins involved in osmolyte accumulation: aldose reductase (AR), taurine transporter (TauT), and sodium myo-inositol co-transporter (SMIT). We analyzed idiopathic inflammatory myopathy and Duchenne muscular dystrophy muscle biopsies and myotubes in culture, using immunohistochemistry, immunofluorescence, and western blotting...
August 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27255599/taurine-pretreatment-prevents-isoflurane-induced-cognitive-impairment-by-inhibiting-er-stress-mediated-activation-of-apoptosis-pathways-in-the-hippocampus-in-aged-rats
#15
Yanan Zhang, Dongliang Li, Haiou Li, Dailiang Hou, Jingdong Hou
Isoflurane, a commonly used inhalation anesthetic, may induce neurocognitive deficits, especially in elderly patients after surgery. Recent study demonstrated that isoflurane caused endoplasmic reticulum (ER) stress and subsequent neuronal apoptosis in the brain, contributing to cognitive deficits. Taurine, a major intracellular free amino acid, has been shown to inhibit ER stress and neuronal apoptosis in several neurological disorders. Here, we examined whether taurine can prevent isoflurane-induced ER stress and cognitive impairment in aged rats...
October 2016: Neurochemical Research
https://www.readbyqxmd.com/read/26856750/characterizing-factors-associated-with-differences-in-fgf19-blood-levels-and-synthesis-in-patients-with-primary-bile-acid-diarrhea
#16
Ian M Johnston, Jonathan D Nolan, Sanjeev S Pattni, Richard N Appleby, Justine H Zhang, Sarah L Kennie, Gaganjit K Madhan, Sina Jameie-Oskooei, Shivani Pathmasrirengam, Jeremy Lin, Albert Hong, Peter H Dixon, Catherine Williamson, Julian R F Walters
OBJECTIVES: Chronic diarrhea caused by primary bile acid diarrhea (PBAD) is a common condition. We have previously shown PBAD is associated with low fasting serum levels of the ileal hormone, fibroblast growth factor 19 (FGF19). FGF19 is a negative regulator of hepatic bile acid synthesis and is stimulated by farnesoid X receptor agonists, which produce symptomatic improvement in PBAD. We aimed to assess possible causes for low serum FGF19 in patients with PBAD. METHODS: Patients with PBAD, defined by reduced (75)Se-labelled homocholic acid taurine (SeHCAT) retention, and idiopathic diarrhea controls had measurements of fasting lipids and fasting/post-prandial FGF19 serum profiles...
March 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/26843082/effects-of-bariatric-surgery-on-serum-bile-acid-composition-and-conjugation-in-a-diabetic-rat-model
#17
Qunzheng Wu, Xiang Zhang, Mingwei Zhong, Haifeng Han, Shaozhuang Liu, Teng Liu, Meng Wei, Wei Guo, Haibin Xie, Sanyuan Hu, Guangyong Zhang
BACKGROUND: Serum bile acids (BAs) are elevated following bariatric surgery and have emerged as a potential glucose-lowering beneficial factor. The change of BA components and its underlying mechanisms may be of great significance during bariatric surgery. The aim of this study is to investigate the effects of different bariatric procedures on serum BA composition and explore the potential mechanisms using a diabetic rat model. METHODS: Duodenal-jejunal bypass (DJB), sleeve gastrectomy (SG), and sham operation were performed in diabetic rats induced by high-fat diet (HFD) and streptozotocin (STZ)...
October 2016: Obesity Surgery
https://www.readbyqxmd.com/read/26573537/deciphering-the-signaling-mechanisms-of-the-plant-cell-wall-degradation-machinery-in-aspergillus-oryzae
#18
D B R K Gupta Udatha, Evangelos Topakas, Margarita Salazar, Lisbeth Olsson, Mikael R Andersen, Gianni Panagiotou
BACKGROUND: The gene expression and secretion of fungal lignocellulolytic enzymes are tightly controlled at the transcription level using independent mechanisms to respond to distinct inducers from plant biomass. An advanced systems-level understanding of transcriptional regulatory networks is required to rationally engineer filamentous fungi for more efficient bioconversion of different types of biomass. RESULTS: In this study we focused on ten chemically defined inducers to drive expression of cellulases, hemicellulases and accessory enzymes in the model filamentous fungus Aspergillus oryzae and shed light on the complex network of transcriptional activators required...
2015: BMC Systems Biology
https://www.readbyqxmd.com/read/26499949/upregulation-of-long-non-coding-rna-tug1-correlates-with-poor-prognosis-and-disease-status-in-osteosarcoma
#19
Bing Ma, Meng Li, Lei Zhang, Ming Huang, Jun-Bin Lei, Gui-Hong Fu, Chun-Xin Liu, Qi-Wen Lai, Qing-Quan Chen, Yi-Lian Wang
The pathogenesis of osteosarcoma involves complex genetic and epigenetic factors. This study was to explore the impact and clinical relevance of long non-coding RNA (lncRNA), Taurine up-regulated gene 1 (TUG1) on patients with osteosarcoma. Seventy-six osteosarcoma tissues and matched adjacent normal tissues were included for analysis. The plasma samples were obtained from 29 patients with osteosarcoma at pre-operation and post-operation, 42 at newly diagnosed, 18 who experienced disease progression or relapse, 45 post-treatment, 36 patients with benign bone tumor, and 20 healthy donors...
April 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/26336870/long-non-coding-rna-tug1-is-up-regulated-in-hepatocellular-carcinoma-and-promotes-cell-growth-and-apoptosis-by-epigenetically-silencing-of-klf2
#20
Ming-De Huang, Wen-Ming Chen, Fu-Zhen Qi, Ming Sun, Tong-Peng Xu, Pei Ma, Yong-Qian Shu
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death worldwide, and the biology of this cancer remains poorly understood. Recent evidence indicates that long non-coding RNAs (lncRNAs) are found to be dysregulated in a variety of cancers, including HCC. Taurine Up-regulated Gene 1 (TUG1), a 7.1-kb lncRNA, recruiting and binding to polycomb repressive complex 2 (PRC2), is found to be disregulated in non-small cell lung carcinoma (NSCLC) and esophageal squamous cell carcinoma (ESCC)...
2015: Molecular Cancer
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