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Transcription factors

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https://www.readbyqxmd.com/read/28823136/identification-of-polymorphisms-in-mitf-and-dct-genes-and-their-associations-with-plumage-colors-in-asian-duck-breeds
#1
Hasina Sultana, Dongwon Seo, Nu-Ri Choi, Md Shamsul Alam Bhuiyan, Seung Hwan Lee, Kang Nyeong Heo, Jun Heon Lee
Objective: The aim of this study was to investigate the effect of single nucleotide polymorphisms (SNPs) of the MITF and DCT genes on plumage coloration in Asian native duck breeds. MITF encodes a protein for microphthalmia-associated transcription factor, which regulates the development and function of melanocytes for pigmentation of skin, hair, and eyes. Among the tyrosinase-related family genes, dopachrome tautomerase (DCT) is a pigment cell-specific gene that plays important roles in the melanin synthesis pathway and the expression of skin, feather, and retina color...
August 16, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28823121/characterization-of-the-porcine-nanog-5-flanking-region
#2
Azra Memon, Ki-Duk Song, Woon Kyu Lee
Objective: Nanog, a homeodomain protein, has been investigated in humans and mice using ESCs. Because of the limited availability of ESCs, few studies have reported the function and role of Nanog in porcine ESCs. Therefore, in this study, we investigated the location of the porcine Nanog chromosome and its basal promoter activity, which might have potential applications in development of ESs specific marker as well as understanding its operating systems in the porcine. Methods: To characterize the porcine Nanog promoter, the 5'-flanking region of Nanog was isolated from cells of mini-pig ears...
August 16, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28822960/loss-of-perilipin-2-in-cultured-myotubes-enhances-lipolysis-and-redirects-the-metabolic-energy-balance-from-glucose-oxidation-towards-fatty-acid-oxidation
#3
Yuan Z Feng, Jenny Lund, Yuchuan Li, Irlin K Knabenes, Siril S Bakke, Eili Tranheim Kase, Yun K Lee, Alan R Kimmel, G Hege Thoresen, Arild Christian Rustan, Knut Tomas Dalen
Lipid droplet (LD) coating proteins are essential for the formation and stability of intracellular LDs. Plin2 is an abundant LD coating protein in skeletal muscle, but its importance for muscle function is unclear. We show that myotubes established from Plin2-/- mice contain reduced content of LDs and accumulate less oleic acid in triacylglycerol (TAG), due to elevated LD hydrolysis compared to Plin2+/+ myotubes. The reduced ability to store TAG in LDs in Plin2-/- myotubes is accompanied by a shift in energy metabolism...
August 19, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28822907/leaf-carbohydrates-influence-transcriptional-and-post-transcriptional-regulation-of-nocturnal-carboxylation-and-starch-degradation-in-the-facultative-cam-plant-mesembryanthemum-crystallinum
#4
Tahar Taybi, John C Cushman, Anne M Borland
Nocturnal degradation of transitory starch is a limiting factor for the optimal function of crassulacean acid metabolism and must be coordinated with phosphoenolypyruvate carboxylase (PEPC)-mediated CO2 uptake to optimise carbon gain over the diel cycle. The aim of this study was to test the hypothesis that nocturnal carboxylation is coordinated with starch degradation in CAM via a mechanism whereby the products of these pathways regulate diel transcript abundance and enzyme activities for both processes. To test this hypothesis, a starch and CAM-deficient mutant of Mesembryanthemum crystallinum was compared with wild type plants under well-watered and saline (CAM-inducing) conditions...
August 5, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28822831/ifna-as1-regulates-cd4-t-cell-activation-in-myasthenia-gravis-though-hla-drb1
#5
Mengchuan Luo, Xiaofang Liu, Huanyu Meng, Liqun Xu, Yi Li, Zhibin Li, Chang Liu, Yuebei Luo, Bo Hu, Yuanyuan Xue, Yu Liu, Zhaohui Luo, Huan Yang
Abnormal CD4(+)T cell activation is known to play roles in the pathogenesis of myasthenia gravis (MG). However, little is known about the mechanisms underlying the roles of lncRNAs in regulating CD4(+) cell. In this study, we discovered that the lncRNA IFNG-AS1 is abnormally expressed in MG patients associated with quantitative myasthenia gravis (QMG) and the positive anti-AchR Ab levels patients. IFNG-AS1 influenced Th1/Treg cell proliferation and regulated the expression levels of their transcription factors in an experimental autoimmune myasthenia gravis (EAMG)model...
August 16, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28822797/influence-of-bcr-abl-transcript-type-on-outcome-in-patients-with-chronic-phase-chronic-myeloid-leukemia-treated-with%C3%A2-imatinib
#6
Katia Borgia Barbosa Pagnano, Eliana Cristina Miranda, Márcia Torresan Delamain, Gislaine Oliveira Duarte, Erich Vinicius de Paula, Irene Lorand-Metze, Carmino Antonio de Souza
BACKGROUND: The prognostic significance of breakpoint cluster region gene-Abelson murine leukemia viral oncogene homolog 1 (BCR-ABL1) transcripts in chronic myeloid leukemia (CML) is still controversial. PATIENTS AND METHODS: All consecutive CML patients in chronic phase treated with imatinib in a single center were analyzed (n = 170). BCR-ABL1 transcript was evaluated using multiplex reverse transcription polymerase chain reaction. Exclusively patients with BCR-ABL transcripts e13a2 and/or e14a2 were included in this analysis...
June 21, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28822779/molecular-characterization-of-kiss2-and-differential-regulation-of-reproduction-related-genes-by-sex-steroids-in-the-hypothalamus-of-half-smooth-tongue-sole-cynoglossus-semilaevis
#7
Bin Wang, Quan Liu, Xuezhou Liu, Yongjiang Xu, Xuesong Song, Bao Shi
Kisspeptin (Kiss) plays a critical role in mediating gonadal steroid feedback to the gonadotropin-releasing hormone (GnRH) neurons in mammals. However, little information regarding the regulation of kisspeptin gene by sex steroids is available in teleosts. In this study, we examined the direct actions of estradiol (E2) and testosterone (T) on hypothalamic expression of kisspeptin and other key factors involved in reproductive function of half-smooth tongue sole. As a first step, a partial-length cDNA of kiss2 was identified from the brain of tongue sole and kiss2 transcript levels were shown to be widely expressed in various tissues, notably in the ovary...
August 16, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28822763/activating-transcription-factor-3-regulates-chemokine-expression-in-contracting-c2c12-myotubes-and-in-mouse-skeletal-muscle-after-eccentric-exercise
#8
R Fernández-Verdejo, A M Vanwynsberghe, T Hai, L Deldicque, M Francaux
Activating transcription factor (ATF) 3 regulates chemokine expression in various cell types and tissues. Herein, we studied this regulation in contracting muscle cells in vitro, and in skeletal muscle after muscle-damaging exercise in vivo. C2C12 myotubes with normal or low ATF3 levels (atf3_siRNA) were electrically stimulated (EPS). Also, ATF3-knockout (ATF3-KO) and control mice ran downhill until exhaustion, and muscles were analyzed post-exercise. EPS increased ATF3 levels in myotubes (P < 0.01)...
August 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28822762/rab11a-is-required-for-porcine-reproductive-and-respiratory-syndrome-virus-induced-autophagy-to-promote-viral-replication
#9
Kai Wang, Shuaifeng Li, Tesfaye Worku, Xingjie Hao, Liaohan Yang, Shujun Zhang
Porcine reproductive and respiratory syndrome virus (PRRSV) is the leading virus known to cause massive economic loss in pig industry worldwide. In our previous study, transcriptional profiling of PRRSV-infected lung tissue of Tongcheng and landrane pigs, which have highly pathogenic PRRSV (HP-PRRSV) susceptibility differences, showed differential expression of Rab11a. The small GTPase Rab11a regulates intracellular membrane trafficking events involved in autophagy. However, the involvement of convergence of endosomal Rab11a and autophagy pathways during PRRSV infection is still unclear...
August 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28822761/down-regulation-of-vascular-ppar-%C3%AE-contributes-to-endothelial-dysfunction-in-high-fat-diet-induced-obese-mice-exposed-to-chronic-intermittent-hypoxia
#10
Yanan Zhang, Chunlian Zhang, Haiou Li, Jingdong Hou
Obstructive sleep apnea (OSA), characterized by chronic intermittent hypoxia (CIH), is associated with endothelial dysfunction. The prevalence of OSA is linked to an epidemic of obesity. CIH has recently been reported to cause endothelial dysfunction in diet-induced obese animals by exaggerating oxidative stress and inflammation, but the underlying mechanism remains unclear. PPAR-γ, a ligand-inducible transcription factor that exerts anti-oxidant and anti-inflammatory effects, is down-regulated in the peripheral tissues in diet-induce obesity...
August 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28822748/systematical-exploration-of-transcription-factors-in-cardiomyocytes-against-hydrogen-peroxide-induced-oxidative-stress-by-danhong-injection
#11
Jingjing Zhang, Feifei Guo, Junying Wei, Minghua Xian, Shihuan Tang, Ye Zhao, Mingwei Liu, Lei Song, Ya Geng, Hongjun Yang, Chen Ding, Luqi Huang
Oxidative stress plays a vital role in many pathological processes of the cardiovascular diseases. However, the underlying mechanism remains unclear, especially on a transcription factor (TF) level. In this study, a new method, concatenated tandem array of consensus transcription factor response elements (catTFREs), and an Illumina-based RNA-seq technology were integrated and then combined with a network pharmacology strategy to systematically investigate the role of TFs in hydrogen peroxide (H2O2)-induced oxidative stress in cardiomyocytes; the damage was then rescued by Danhong injection (DHI), a Chinese standardized product approved for cardiovascular diseases treatment...
August 16, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28822335/specificity-protein-1-modulated-superoxide-dismutase-2-enhances-temozolomide-resistance-in-glioblastoma-which-is-independent-of-o-6-methylguanine-dna-methyltransferase
#12
Kwang-Yu Chang, Tsung-I Hsu, Che-Chia Hsu, Shan-Yin Tsai, Jr-Jiun Liu, Shao-Wen Chou, Ming-Sheng Liu, Jing-Ping Liou, Chiung-Yuan Ko, Kai-Yun Chen, Jan-Jong Hung, Wen-Chang Chang, Cheng-Keng Chuang, Tzu-Jen Kao, Jian-Ying Chuang
Acquisition of temozolomide (TMZ) resistance is a major factor leading to the failure of glioblastoma (GBM) treatment. The exact mechanism by which GBM evades TMZ toxicity is not always related to the expression of the DNA repair enzyme O(6)-methylguanine-DNA methyltransferase (MGMT), and so remains unclear. In this study, TMZ-resistant variants derived from MGMT-negative GBM clinical samples and cell lines were studied, revealing there to be increased specificity protein 1 (Sp1) expression associated with reduced reactive oxygen species (ROS) accumulation following TMZ treatment...
August 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28822229/vasculogenesis-and-angiogenesis-initiation-under-normoxic-conditions-through-wnt-%C3%AE-catenin-pathway-in-gliomas
#13
Alexandre Vallée, Rémy Guillevin, Jean-Noël Vallée
The canonical Wnt/β-catenin pathway is up-regulated in gliomas and involved in proliferation, invasion, apoptosis, vasculogenesis and angiogenesis. Nuclear β-catenin accumulation correlates with malignancy. Hypoxia activates hypoxia-inducible factor (HIF)-1α by inhibiting HIF-1α prolyl hydroxylation, which promotes glycolytic energy metabolism, vasculogenesis and angiogenesis, whereas HIF-1α is degraded by the HIF prolyl hydroxylase under normoxic conditions. We focus this review on the links between the activated Wnt/β-catenin pathway and the mechanisms underlying vasculogenesis and angiogenesis through HIF-1α under normoxic conditions in gliomas...
August 19, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/28822081/expression-profiling-of-the-map-kinase-phosphatase-family-reveals-a-role-for-dusp1-in-the-glioblastoma-stem-cell-niche
#14
Bradley N Mills, George P Albert, Marc W Halterman
The dual specificity phosphatases (DUSPs) constitute a family of stress-induced enzymes that provide feedback inhibition on mitogen-activated protein kinases (MAPKs) critical in key aspects of oncogenic signaling. While described in other tumor types, the landscape of DUSP mRNA expression in glioblastoma (GB) remains largely unexplored. Interrogation of the REpository for Molecular BRAin Neoplasia DaTa (REMBRANDT) revealed induction (DUSP4, DUSP6), repression (DUSP2, DUSP7-9), or mixed (DUSP1, DUSP5, DUSP10, DUSP15) DUSP transcription of select DUSPs in bulk tumor specimens...
August 18, 2017: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/28822061/co-ultramicronized-palmitoylethanolamide-luteolin-facilitates-the-development-of-differentiating-and-undifferentiated-rat-oligodendrocyte-progenitor-cells
#15
Stephen D Skaper, Massimo Barbierato, Laura Facci, Mila Borri, Gabriella Contarini, Morena Zusso, Pietro Giusti
Oligodendrocytes, the myelin-producing cells of the central nervous system (CNS), have limited capability to bring about repair in chronic CNS neuroinflammatory demyelinating disorders such as multiple sclerosis (MS). MS lesions are characterized by a compromised pool of undifferentiated oligodendrocyte progenitor cells (OPCs) unable to mature into myelin-producing oligodendrocytes. An attractive strategy may be to replace lost OLs and/or promote their maturation. N-palmitoylethanolamine (PEA) is an endogenous fatty acid amide signaling molecule with anti-inflammatory and neuroprotective actions...
August 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28822019/gypenoside-ix-suppresses-p38-mapk-akt-nf%C3%AE%C2%BAb-signaling-pathway-activation-and-inflammatory-responses-in-astrocytes-stimulated-by-proinflammatory-mediators
#16
Xiaoshuang Wang, Liu Yang, Li Yang, Faping Xing, Hua Yang, Liyue Qin, Yunyi Lan, Hui Wu, Beibei Zhang, Hailian Shi, Cheng Lu, Fei Huang, Xiaojun Wu, Zhengtao Wang
Gypenoside IX (GP IX) is a pure compound isolated from Panax notoginseng. Gypenosides have been implicated to benefit the recovery of enormous neurological disorders. By suppressing the activation of astrocytes, gypenosides can improve the cognitive impairment. However, so far, little is known about whether GP IX could restrain the inflammatory responses in astrocytes or reactive astrogliosis. In present study, the anti-inflammatory effects of GP IX were investigated in reactive astrocytes induced by proinflammatory mediators both in vitro and in vivo...
August 18, 2017: Inflammation
https://www.readbyqxmd.com/read/28821952/genome-wide-association-study-and-gene-set-analysis-for-understanding-candidate-genes-involved-in-salt-tolerance-at-the-rice-seedling-stage
#17
Jie Yu, Weiguo Zao, Qiang He, Tae-Sung Kim, Yong-Jin Park
Salt is the major factor limiting crop productivity in saline soils and is controlled by various genes. The development of salt-tolerant rice through molecular breeding methods is important to meet the needs of rice breeding. We used 295 accessions to perform a genome-wide association study (GWAS) of salt tolerance-related phenotypes in rice at the seedling stage and obtained 93 candidate genes with high association peaks across six phenotypes. We constructed a protein interaction network using the candidate genes identified here, and 33 genes were associated...
August 18, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28821944/the-2017-world-health-organization-classification-of-tumors-of-the-pituitary-gland-a-summary
#18
REVIEW
M Beatriz S Lopes
The 4th edition of the World Health Organization (WHO) classification of endocrine tumors has been recently released. In this new edition, major changes are recommended in several areas of the classification of tumors of the anterior pituitary gland (adenophypophysis). The scope of the present manuscript is to summarize these recommended changes, emphasizing a few significant topics. These changes include the following: (1) a novel approach for classifying pituitary neuroendocrine tumors according to pituitary adenohypophyseal cell lineages; (2) changes to the histological grading of pituitary neuroendocrine tumors with the elimination of the term "atypical adenoma;" and (3) introduction of new entities like the pituitary blastoma and re-definition of old entities like the null-cell adenoma...
August 18, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28821798/unconventional-mapk-gsk-3%C3%AE-pathway-behind-atypical-epithelial-mesenchymal-transition-in-hepatocellular-carcinoma
#19
Sana Parveen, Dhiviya Vedagiri, Hitha Gopalan Nair, Haripriya Parthasarathy, Krishnan Harinivas Harshan
We recently reported an atypical epithelial mesenchymal transition (EMT) in human hepatoma cell culture Huh7.5, which was non-responsive to the canonical EMT-transcription factors. Here we characterize major pathways regulating this atypical EMT through whole genome transcriptome profiling and molecular analysis, and identify a unique regulation of EMT by GSK-3β. Our analysis reveals remarkable suppression of several key liver-specific markers in Huh7.5M cells indicating that EMT not only changes the epithelial properties, but alters the characteristics associated with hepatocytes as well...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821769/patterns-of-transcriptional-parallelism-and-variation-in-the-developing-olfactory-system-of-drosophila-species
#20
Jia Wern Pan, Qingyun Li, Scott Barish, Sumie Okuwa, Songhui Zhao, Charles Soeder, Matthew Kanke, Corbin D Jones, Pelin Cayirlioglu Volkan
Organisms have evolved strikingly parallel phenotypes in response to similar selection pressures suggesting that there may be shared constraints limiting the possible evolutionary trajectories. For example, the behavioral adaptation of specialist Drosophila species to specific host plants can exhibit parallel changes in their adult olfactory neuroanatomy. We investigated the genetic basis of these parallel changes by comparing gene expression during the development of the olfactory system of two specialist Drosophila species to that of four other generalist species...
August 18, 2017: Scientific Reports
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