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Ibrahem Salih S Academic Unit of Molecular Pathology, Nottingham University, Nottingham, - - 2014
Wnt signalling and the signal transducer and activator of transcription 3 (STAT3) are oncogenic signalling pathways which are deregulated in colorectal cancer (CRC). Here we investigated the interaction of these two pathways. Firstly, we investigated biochemical interaction by inhibiting STAT3 and β-catenin (through gene knock-down and dominant-negative TCF4 expression) in ...
Zana-Taieb E E Université Paris Descartes, Paris, France; Fondation PremUp, 53 avenue de l'Observatoire, 75014, Paris, France; Institut National de la Santé Et de la Recherche Médicale (INSERM) U1141, Paris, France; Assistance Publique - Hôpitaux de Paris, Service de Médecine et Réanimation néonatales de Port-Royal, Groupe hospitalier Cochin, Broca, Hôtel-Dieu. 53 avenue de l'Observatoire, 75014, Paris, - - 2014
Intrauterine growth restriction (IUGR) dramatically increases the risk of bronchopulmonary dysplasia in preterm babies, a disease characterised by arrested alveolarisation and abnormal microvascular angiogenesis. We have previously described a rodent low protein diet (LPD) model of IUGR inducing impaired alveolarisation, but failed to demonstrate any modification of the classical factors ...
Blackney Michael J - - 2014
In this study we cloned and sequenced the mRNAs of the extracellular Cu Zn superoxide dismutase (Sod3) gene in Drosophila and identified two mRNA products formed by alternative splicing. These products code for a long and short protein derived from the four transcripts found in global expression studies (Flybase numbers ...
Valenti Fabio F Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, 19122, USA; Department of Biology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania, 19122, - - 2014
β-catenin is a central effector of the Wnt pathway and one of the players in Ca(+) -dependent cell-cell adhesion. While many wnts are present and expressed in vertebrates, only one β-catenin exists in the majority of the organisms. One intriguing exception is zebrafish that carries two genes for β-catenin. The ...
Petrova Olga E OE Department of Biological Sciences, Binghamton University, 85 Murray Hill Road, Binghamton, NY - - 2014
Biofilm dispersion is a highly regulated process allowing biofilm bacteria to respond to changing environmental conditions and to disseminate to new locations. Dispersion of biofilms formed by the opportunistic pathogen Pseudomonas aeruginosa is known to require a number of c-di-GMP-degrading phosphodiesterases (PDEs) and the chemosensory protein BdlA, with BdlA playing ...
Tocco Alice A Université de Bordeaux, CIRID UMR 5164, F-33000, Bordeaux, - - 2014
Adenosine is an endogenous molecule that regulates many physiological processes via the activation of four specific G-protein-coupled ADORA receptors. Extracellular adenosine may originate either from the hydrolysis of released ATP by the ectonucleotidases or from cellular exit via the equilibrative nucleoside transporters (SLC29A). Adenosine extracellular concentration is also regulated by ...
Tomar Dhanendra D Department of Cell Biology, School of Biological Sciences and Biotechnology, Indian Institute of Advanced Research, Gandhinagar, - - 2014
The nuclear factor κB (NF-κB) transcription factor family plays a key role in regulation of the inflammatory pathway in response to different physiological stimuli starting from development to ageing. The dysregulation of NF-κB has been associated with many pathological conditions like inflammatory diseases, neurodegeneration, metabolic diseases and various kinds of ...
Rozenberg Julian M JM From the Department of Pathology, University of North Carolina, Chapel - - 2014
The goal of the present study was to identify novel mechanisms that regulate smooth muscle cell (SMC) differentiation marker gene expression. We demonstrate that the CArG-containing regions of many SMC-specific promoters are imbedded within CpG islands. A previously identified GC repressor element in the SM myosin heavy chain (MHC) promoter ...
Di Giammartino Dafne Campigli DC Department of Biological Sciences, Columbia University, New York, New York 10027, - - 2014
Polyadenylation of mRNA precursors is mediated by a large multisubunit protein complex. Here we show that RBBP6 (retinoblastoma-binding protein 6), identified initially as an Rb- and p53-binding protein, is a component of this complex and functions in 3' processing in vitro and in vivo. RBBP6 associates with other core factors, ...
Benesch Franziska F Veterinär-Physiologisches Institut - - 2014
In the intact rumen epithelium, isoforms 1 and 4 of the monocarboxylate transporter (MCT1 and MCT4) are thought to play key roles in mediating transcellular and intracellular permeation of short-chain fatty acids and their metabolites and in maintaining intracellular pH. We examined whether both MCT1 and MCT4 are expressed at ...
Di Ran - - 2014
Seasonal estrus is a critical limiting factor of animal fecundity, and it involves changes in both ovarian biology and hormone secretion in different seasons. Previous studies indicate that two classes of small RNAs (miRNAs and piRNAs) play important regulatory roles in ovarian biology. To understand the roles of small RNA-mediated ...
Xiong Jianjun J Jiangxi Province Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang, Jiangxi 332000, P.R. - - 2014
The ubiquitin‑specific protease 22 (USP22) gene is overexpressed in the majority of types of cancer cells, and has been implicated in tumorigenesis. However, the mechanisms that regulate its expression remain unclear. The results of the present study demonstrated that the expression of USP22 is negatively regulated by trichostatin A (TSA), a classical ...
Babbarwal Vinod V Penn State University, United - - 2014
Gene expression relies on the balance between mRNA synthesis in the nucleus and decay in the cytoplasm, processes once thought to be separate. We now know that transcription and decay rates are coordinated, but the factors or molecular mechanisms are unclear. The Ccr4-Not complex regulates multiple stages of gene expression, ...
Kim Young-Il YI Department of Dermatology, School of Medicine, University of California, San Francisco, San Francisco Department of Veterans Affairs Medical Center, San Francisco Northern California Institute for Research and Education, San Francisco, CA 94121, - - 2014
Antimicrobial peptides (AMP) are ubiquitous innate immune elements in epithelial tissues. We recently discovered that a signaling lipid, the ceramide metabolite, sphingosine-1-phosphate (S1P), regulates production of a major AMP, cathelicidin antimicrobial peptide (CAMP) in response to subtoxic level of ER stress that can be induced by external perturbants in keratinocytes. ...
Schönemann Lars L Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, D-06099 Halle, - - 2014
Cleavage and polyadenylation specificity factor (CPSF) is the central component of the 3' processing machinery for polyadenylated mRNAs in metazoans: CPSF recognizes the polyadenylation signal AAUAAA, providing sequence specificity in both pre-mRNA cleavage and polyadenylation, and catalyzes pre-mRNA cleavage. Here we show that of the seven polypeptides that have been ...
Chan Serena L SL Department of Microbiology and Molecular Genetics, School of Medicine, University of California at Irvine, Irvine, California 92697, - - 2014
AAUAAA is the most highly conserved motif in eukaryotic mRNA polyadenylation sites and, in mammals, is specifically recognized by the multisubunit CPSF (cleavage and polyadenylation specificity factor) complex. Despite its critical functions in mRNA 3' end formation, the molecular basis for CPSF-AAUAAA interaction remains poorly defined. The CPSF subunit CPSF160 ...
Zayat Valery V 1 Cancer Center Institute , Warsaw, Poland - - 2014
HAX-1, a multifunctional protein involved in the regulation of apoptosis, cell migration, and calcium homeostasis, binds the 3' untranslated region motifs of specific transcripts. This suggests that HAX-1 plays a role in post-transcriptional regulation, at the level of mRNA stability/transport or translation. In this study, we analyze in detail HAX-1 ...
Charpentier Myriam M John Innes - - 2014
Legumes can establish intracellular interactions with symbiotic microbes to enhance their fitness, including the interaction with arbuscular mycorrhizal (AM) fungi. AM fungi colonize root epidermal cells to gain access to the root cortex and this requires the recognition by the host plant of fungal made Myc factors. Genetic dissection has ...
Lin Yan Y Institute of medicine, Qiqihar Medical University, Qiqihar, PR - - 2014
Background/Aim: Polyamines (putrescine, spermidine and spermine) play an essential role in cell growth, differentiation and apoptosis. Hypertrophy is accompanied by an increase in polyamine synthesis and endoplasmic reticulum stress (ERS) in cardiomyocytes. The present study was undertaken to elucidate the molecular interactions between polyamines, ERS and cardiac hypertrophy. Methods: Myocardial ...
Schlupf Judith J Institute of Human Genetics, University Heidelberg, Im Neuenheimer Feld 366, 69120 Heidelberg, Germany. Electronic address: - - 2014
Mouse F9 teratocarcinoma cells are an established model for the differentiation of extra-embryonic endoderm (ExEn). Primitive endoderm, parietal and visceral endoderm can be generated by stimulation of F9 cells with retinoic acid and dibutyryl cyclic adenosine monophosphate. Here we show that Wnt/β-Catenin signaling is down-regulated during ExEn differentiation in F9 ...
Watanabe Toshiaki T Yale Stem Cell Center and Department of Cell Biology, Yale University School of Medicine, New Haven, CT 06519, USA. Electronic address: - - 2014
Piwi proteins and Piwi-interacting RNAs (piRNAs) are essential for gametogenesis, embryogenesis, and stem cell maintenance in animals. Piwi proteins act on transposon RNAs by cleaving the RNAs and by interacting with factors involved in RNA regulation. Additionally, piRNAs generated from transposons and psuedogenes can be used by Piwi proteins to ...
Zhang Xingliang X Department of Pediatrics, the Affiliated Hospital of Guangdong Medical College, Zhanjiang, PR - - 2014
Objectives: The aim of this investigation was to study the underlying mechanism of an adenosine A1 receptor agonist 2-chloro-N6 cyclopentyladenosine (CCPA) inhibiting cardiomyocyte hypertrophy induced by angiotensin II (AngII). Methods: Neonatal rat cardiomyocytes were treated with AngII to generate a cardiomyocyte hypertrophy model. Cardiomyocyte cultures were randomized into 5 groups: ...
Yeap Wan-Chin WC Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Sime Darby Technology Centre Sdn. Bhd., 1st Floor, Block B, UPM-MTDC Technology Centre III, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, - - 2014
Plant cells contain a diverse repertoire of RNA-binding proteins (RBPs) that coordinate a network of post-transcriptional regulation. RBPs govern diverse developmental processes by modulating the gene expression of specific transcripts. Recent gene annotation and RNA sequencing clearly showed that heterogeneous nuclear ribonucleoprotein (hnRNP)-like proteins which form a family of RBPs, ...
Coulon Antoine A National Institute of Diabetes and Kidney and Digestive Diseases, National Institutes of Health, Bethesda, United - - 2014
Synthesis of mRNA in eukaryotes involves the coordinated action of many enzymatic processes, including initiation, elongation, splicing and cleavage. Kinetic competition between these processes has been proposed to determine RNA fate, yet such coupling has never been observed in vivo on single transcripts. Here, we use dual-color single-molecule RNA imaging ...
Das Srijit S Crystallography & Molecular Biology Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, - - 2014
Heat shock response pathway is a conserved defense mechanism of mammalian cells to maintain protein homeostasis against proteotoxic environmental conditions. This is characterized by robust synthesis of molecular chaperones mostly by stress-induced activation of heat shock factor 1 (HSF1). MicroRNAs (miRNAs) are a family of small non-coding RNAs that negatively ...
Romeo Valentina V Institute of Cell, Biology, University of Bern, 3012 Bern, Switzerland Graduate School for Cellular and Biomedical Sciences, University of Bern, 3012 Bern, - - 2014
The 3' end processing of animal replication-dependent histone mRNAs is activated during G1/S phase transition. The processing site is recognised by stem-loop binding protein and the U7 snRNP, but cleavage additionally requires a heat-labile factor (HLF), composed of cleavage/polyadenylation specificity factor, symplekin and cleavage stimulation factor 64 (CstF64). Although HLF ...
Ma Pengcheng P State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of - - 2014
Wnt/β-catenin signaling plays critical roles in embryonic development and disease. Here, we identify RNF220, a RING domain E3 ubiquitin ligase, as a new regulator of β-catenin. RNF220 physically interacts with β-catenin, but instead of promoting its ubiquitination and proteasomal degradation, it stabilizes β-catenin and promotes canonical Wnt signaling. Our analysis ...
Mettert Erin L EL Department of Biomolecular Chemistry, University of - - 2014
Fe-S cluster biogenesis is essential for viability of most organisms. In Escherichia coli, this process requires either the housekeeping Isc or the stress-induced Suf pathway. The global regulator IscR coordinates cluster synthesis by repressing transcription of the isc operon by [2Fe-2S]-IscR, and activating expression of the suf operon. We show ...
Krishnaswamy Venkat Raghavan VR Department of Biomaterials, CSIR - Central Leather Research Institute, Adyar, Chennai, 600020, Tamilnadu, - - 2014
Chronic cutaneous wound (CCW) is a major health care burden wherein the healing process is slow or rather static resulting in anatomical and functional restriction of the damaged tissue. Dysregulated expression and degradation of matrix proteins, growth factors and cytokines contribute to the disrupted and uncoordinated healing process of CCW. ...
Lakatos Dora - - 2014
BackgroundThe maintenance of stem cell pluripotency is controlled by a core cluster of transcription factors, NANOG, OCT4 and SOX2 ¿ genes that jointly regulate each other¿s expression. The expression of some of these genes, especially of Nanog, is heterogeneous in a population of undifferentiated stem cells in culture. Transient changes ...
Guo Rui R Epigenetics Laboratory, School of Basic Medicine and Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, - - 2014
BS69 (also called ZMYND11) contains tandemly arranged PHD, BROMO, and PWWP domains, which are chromatin recognition modalities. Here, we show that BS69 selectively recognizes histone variant H3.3 lysine 36 trimethylation (H3.3K36me3) via its chromatin-binding domains. We further identify BS69 association with RNA splicing regulators, including the U5 snRNP components of ...
Ryu Hong-Yeoul - - 2014
BackgroundNucleolar rDNA is tightly associated with silent heterochromatin, which is important for rDNA stability, nucleolar integration, and cellular senescence. Two pathways have been described that lead to rDNA silencing in yeast: 1) the RENT (regulator of nucleolar silencing and telophase exit) complex, which is composed of Net1, Sir2, and Cdc14 ...
Eggers Stefanie S Murdoch Childrens Research Institute, Department of Paediatrics, The University of Melbourne, The Royal Children's Hospital, 50 Flemington Road, Melbourne, VIC 3052, - - 2014
Sex-specific gonadal development starts with formation of the bipotential gonad, which then differentiates into either a mature testis or an ovary. This process is dependent on activation of either the testis-specific or the ovary-specific pathway while the opposite pathway is continuously repressed. A network of transcription factors tightly regulates initiation ...
Peccarelli Megan M Department of Biology, Baylor University, Waco, TX 76798, - - 2014
The nonsense-mediated mRNA decay (NMD) pathway was originally identified as a pathway that degrades mRNAs with premature termination codons; however, NMD is now known to regulate natural mRNAs as well. Natural mRNAs are degraded by NMD due to the presence of specific NMD targeting features. An atypically long 3'-UTR is ...
Aleksandrzak-Piekarczyk Tamara T Institute of Biochemistry and Biophysics, Polish Academy of Sciences (IBB PAS), Pawińskiego 5a, 02-106, Warsaw, Poland, - - 2014
In a number of previous studies, our group has discovered an alternative pathway for lactose utilization in Lactococcus lactis that, in addition to a sugar-hydrolyzing enzyme with both P-β-glucosidase and P-β-galactosidase activity (BglS), engages chromosomally encoded components of cellobiose-specific PTS (PTS(Cel-Lac)), including PtcA, PtcB, and CelB. In this report, we ...
Wang Wen Chao WC State Key Laboratory of Genetic Engineering, School of Life Sciences, Shanghai 200433, China; Shanghai Engineering Research Center of Industrial Microorganisms Fudan University, Shanghai 200433, - - 2014
Schizosaccharomyces pombe undergoes meiosis instead of mitosis under conditions of nitrogen starvation and pheromone signalling, which results in conjugation and sporulation. During this progress, the pheromone-responsive MAPK(Mitogen-activated protein kinases) pathway plays an important role in regulating the conjuation and the transcriptional activation of genes required for meiosis. Spk1, a key ...
Feng Lei L Department of Biochemistry, Albert Einstein College of Medicine Yeshiva University, Bronx, NY 10461, - - 2014
L-fucose, a monosaccharide widely distributed in eukaryotes and certain bacteria, is a determinant of many functional glycans that play central roles in numerous biological processes. The molecular mechanism, however, by which fucosylation mediates these processes remains largely elusive. To study how changes in fucosylation impact embryonic development, we up-regulated N-linked ...
Zhang Yuanliang Y State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, - - 2014
Setd2 is known as a histone-H3K36-specific methyltransferase. However, its role in physiological function remains unclear. In this study, we show that Setd2 mainly regulates differentiation of murine embryonic stem cells (mESCs) toward primitive endoderm. Furthermore, we show that downregulated endoderm-related genes in Setd2(-/-) mESCs are associated with an aberrantly low ...
Tan Su-Bee SB State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PRC; School of Life Science, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, - - 2014
Myogenic microRNAs (myomiRs) that are specifically expressed in cardiac and skeletal muscle are highly relevant to myogenic development and diseases. Discovery and elucidation of unknown myomiRs-involved regulatory pathways in muscle cells are important, but challenging due to the lack of proper molecular tools. We report here a miR-221/222-myoD-myomiRs regulatory pathway ...
Sahin Pinar P Department of Histology and Embryology, Medical Faculty, Akdeniz University, Campus, Antalya, - - 2014
To evaluate the expression of mammalian target of rapamycin (mTOR) pathway molecules in mouse spermatogenesis and as well as its role during proliferation and meiotic initiation of spermatogenic cells. Experimental animal study. University. C57Balb-C adult male mice. Expressions of mTOR signaling pathway proteins in adult testis were evaluated. Then the ...
Thom Christopher S CS Division of Hematology, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Cell and Molecular Biology Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, - - 2014
TRIM58 is an E3 ubiquitin ligase superfamily member implicated by genome-wide association studies to regulate human erythrocyte traits. Here, we show that Trim58 expression is induced during late erythropoiesis and that its depletion by small hairpin RNAs (shRNAs) inhibits the maturation of late-stage nucleated erythroblasts to anucleate reticulocytes. Imaging flow ...
Liao Jian-You JY State Key Laboratory of Biocontrol and Key Laboratory of Gene Engineering of the Ministry of Education, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Research Center of Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, People's Republic of - - 2014
Small RNAs (sRNAs), including microRNAs and endogenous siRNAs (endo-siRNAs), regulate most important biologic processes in eukaryotes, such as cell division and differentiation. Although sRNAs have been extensively studied in various eukaryotes, the role of sRNAs in the early emergence of eukaryotes is unclear. To address these questions, we deep sequenced ...
Aphasizheva Inna I Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, Boston, MA 02118, - - 2014
Enzymes embedded into the RNA editing core complex (RECC) catalyze the U-insertion/deletion editing cascade to generate open reading frames in trypanosomal mitochondrial mRNAs. The sequential reactions of mRNA cleavage, U-addition or removal, and ligation are directed by guide RNAs (gRNAs). We combined proteomic, genetic and functional studies with sequencing of ...
Yang Tsuey-Ching TC Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei, 112, Taiwan. Electronic address: - - 2014
Xanthomonas campestris pv. campestris expresses a chromosomally encoded class A β-lactamase BlaXc. Basal expression and induction of blaXc require the transcriptional factor AmpRXc and the peptidoglycan-monomers permease AmpGXc. NagZ is a β-GlcNAcase which cleaves GlcNAc-anhMurNAc peptides (peptidoglycan-monomers) to generate anhMurNAc-peptides. In many bacteria, anhMurNAc-peptides act as activation ligands for AmpR. ...
Pézeron Guillaume - - 2014
There is growing evidence that Notch pathway activation can result in consequences on cell morphogenesis and behaviour, both during embryonic development and cancer progression. In general, Notch is proposed to co-ordinate these processes by regulating expression of key transcription factors. However, many Notch-regulated genes identified in genome-wide studies are involved ...
Larabee Shannon M SM Georgetown University Medical Center, Biochemistry and Molecular & Cellular Biology, Washington, District of Columbia, United States ; - - 2014
Body axes and germ layers evolve at gastrulation, and in mammals are driven by many genes; however, what orchestrates the genetic pathways during gastrulation remains elusive. Previously, we presented evidence that microRNA-17 family members, miR-17-5p, miR-20a, miR-93, and miR-106a were differentially expressed in mouse embryos and functioned to control differentiation ...
Joseph Noah N The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, - - 2014
The Nck adapter protein is involved in key cellular functions, such as actin polymerization and reorganization, serving as a molecular bridge between the surface complex essential for foreign antigen recognition, the T-cell antigen receptor (TCR), and the actin machinery. However, the mechanisms regulating Nck expression and functions are unknown. In ...
Ji Qinghong - - 2014
CUL4B, a scaffold protein that assembles CRL4B ubiquitin ligase complex, participates in the regulation of a broad spectrum of biological processes. We here demonstrated a critical role of CUL4B in driving cell cycle progression. We showed that loss of CUL4B resulted in a significantly reduced cell proliferation and G1 cell ...
Chassot Anne-Amandine AA A Chassot, iBV, Université de Nice-Sophia Antipolis, UMR-INSERM1091, Nice, France - - 2014
Sex differentiation is a unique developmental process. Starting from a bipotential gonad, it gives rise to the ovary and the testis, two highly specialized organs which differ morphologically and physiologically despite sharing common reproductive and endocrine functions. This highlights the specific plasticity of the gonadal precursors and the existence of ...
Yang Xiaoling X Department of Pathophysiology, Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan 750004, - - 2014
Endoplasmic reticulum (ER) stress is emerging as an important modulator of different pathological process and as a mechanism contributing to homocysteine (Hcy)-induced hepar injury. However, the molecular event that Hcy-induced ER stress in the hepar under the atherosclerosis background is currently unknown. Endoplasmic reticulum oxidoreductin 1α (ERO1α) plays a crucial ...
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