Emerging Roles for 3 Utrs in Neurons
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
RNA-Binding Protein Network Alteration Causes Aberrant Axon
bioRxiv preprint doi: https://doi.org/10.1101/2020.08.26.268631; this version posted August 26, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 RNA-binding protein network alteration causes aberrant axon 2 branching and growth phenotypes in FUS ALS mutant motoneurons 3 4 Maria Giovanna Garone1, Nicol Birsa2,3, Maria Rosito4, Federico Salaris1,4, Michela Mochi1, Valeria 5 de Turris4, Remya R. Nair5, Thomas J. Cunningham5, Elizabeth M. C. Fisher2, Pietro Fratta2 and 6 Alessandro Rosa1,4,6,* 7 8 1. Department of Biology and Biotechnology Charles Darwin, Sapienza University of Rome, P.le 9 A. Moro 5, 00185 Rome, Italy 10 2. UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, 11 UK 12 3. UK Dementia Research Institute, University College London, London, WC1E 6BT, UK 13 4. Center for Life Nano Science, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161 14 Rome, Italy 15 5. MRC Harwell Institute, Oxfordshire, OX11 0RD, UK 16 6. Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Department of 17 Biology and Biotechnology Charles Darwin, Sapienza University of Rome, Viale Regina Elena 18 291, 00161 Rome, Italy 19 20 * Corresponding author: [email protected]; Tel: +39-0649255218 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.08.26.268631; this version posted August 26, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. -
Characterization of E Coli Hfq Structure and Its Rna Binding Properties
CHARACTERIZATION OF E COLI HFQ STRUCTURE AND ITS RNA BINDING PROPERTIES A thesis Presented to The Academic Faculty By Xueguang Sun In partial Fulfillment Of the Requirement for the Degree Doctor of Philosophy in the School of Biology Georgia Institute of Technology May 2006 Copyright Ó 2006 by Xueguang Sun CHARACTERIZATION OF E COLI HFQ STRUCTURE AND ITS RNA BINDING PROPERTIES Approved by : Roger M. Wartell, Chair Stephen C. Harvey School of Biology School of Biology Georgia Institute of Technology Georgia Institute of Technology Yury O. Chernoff Stephen Spiro School of Biology School of Biology Georgia Institute of Technology Georgia Institute of Technology Loren D Willimas School of Chemistry and Biochmestry Georgia Institute of Technology Date Approved: November 29 2005 To my family, for their constant love and support. iii ACKNOWLEDGEMENTS There are many people I would like to thank and acknowledge for their support and help during my five-year Ph.D. study. First and foremost, I would like to thank my advisor, Dr Roger Wartell, for his guidance and assistance throughout this chapter of my career. His constantly open door, scientific insight and perspective, and technical guidance have been integral to furthering my scientific education. He also provided knowledgeable recommendations and multi-faceted support in my personal life and bridged me to a culture which I have never experienced. Without him, it would be impossible to accomplish this thesis work. I would like to acknowledge Dr. Stephen Harvey, Dr. Yury Chernoff, Dr. Stephen Spiro and Dr. Loren Williams for being on my thesis committee and helpful discussion in structural modeling. -
New Insights Into Functional Roles of the Polypyrimidine Tract-Binding Protein
Int. J. Mol. Sci. 2013, 14, 22906-22932; doi:10.3390/ijms141122906 OPEN ACCESS International Journal of Molecular Sciences ISSN 1422-0067 www.mdpi.com/journal/ijms Review New Insights into Functional Roles of the Polypyrimidine Tract-Binding Protein Maria Grazia Romanelli *, Erica Diani and Patricia Marie-Jeanne Lievens Department of Life and Reproduction Sciences, Section of Biology and Genetics, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy; E-Mails: [email protected] (E.D.); [email protected] (P.M.-J.L.) * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +39-045-8027182; Fax: +39-045-8027180. Received: 22 September 2013; in revised form: 13 November 2013 / Accepted: 13 November 2013 / Published: 20 November 2013 Abstract: Polypyrimidine Tract Binding Protein (PTB) is an intensely studied RNA binding protein involved in several post-transcriptional regulatory events of gene expression. Initially described as a pre-mRNA splicing regulator, PTB is now widely accepted as a multifunctional protein shuttling between nucleus and cytoplasm. Accordingly, PTB can interact with selected RNA targets, structural elements and proteins. There is increasing evidence that PTB and its paralog PTBP2 play a major role as repressors of alternatively spliced exons, whose transcription is tissue-regulated. In addition to alternative splicing, PTB is involved in almost all steps of mRNA metabolism, including polyadenylation, mRNA stability and initiation of protein translation. Furthermore, it is well established that PTB recruitment in internal ribosome entry site (IRES) activates the translation of picornaviral and cellular proteins. Detailed studies of the structural properties of PTB have contributed to our understanding of the mechanism of RNA binding by RNA Recognition Motif (RRM) domains. -
Comparative Interactomics Analysis of Different ALS-Associated Proteins
Acta Neuropathol (2016) 132:175–196 DOI 10.1007/s00401-016-1575-8 ORIGINAL PAPER Comparative interactomics analysis of different ALS‑associated proteins identifies converging molecular pathways Anna M. Blokhuis1 · Max Koppers1,2 · Ewout J. N. Groen1,2,9 · Dianne M. A. van den Heuvel1 · Stefano Dini Modigliani4 · Jasper J. Anink5,6 · Katsumi Fumoto1,10 · Femke van Diggelen1 · Anne Snelting1 · Peter Sodaar2 · Bert M. Verheijen1,2 · Jeroen A. A. Demmers7 · Jan H. Veldink2 · Eleonora Aronica5,6 · Irene Bozzoni3 · Jeroen den Hertog8 · Leonard H. van den Berg2 · R. Jeroen Pasterkamp1 Received: 22 January 2016 / Revised: 14 April 2016 / Accepted: 15 April 2016 / Published online: 10 May 2016 © The Author(s) 2016. This article is published with open access at Springerlink.com Abstract Amyotrophic lateral sclerosis (ALS) is a dev- OPTN and UBQLN2, in which mutations caused loss or astating neurological disease with no effective treatment gain of protein interactions. Several of the identified inter- available. An increasing number of genetic causes of ALS actomes showed a high degree of overlap: shared binding are being identified, but how these genetic defects lead to partners of ATXN2, FUS and TDP-43 had roles in RNA motor neuron degeneration and to which extent they affect metabolism; OPTN- and UBQLN2-interacting proteins common cellular pathways remains incompletely under- were related to protein degradation and protein transport, stood. To address these questions, we performed an inter- and C9orf72 interactors function in mitochondria. To con- actomic analysis to identify binding partners of wild-type firm that this overlap is important for ALS pathogenesis, (WT) and ALS-associated mutant versions of ATXN2, we studied fragile X mental retardation protein (FMRP), C9orf72, FUS, OPTN, TDP-43 and UBQLN2 in neuronal one of the common interactors of ATXN2, FUS and TDP- cells. -
Therapeutic Strategies in Fragile X Syndrome: Dysregulated Mglur Signaling and Beyond
Neuropsychopharmacology REVIEWS (2012) 37, 178–195 & 2012 American College of Neuropsychopharmacology All rights reserved 0893-133X/12 ............................................................................................................................................................... REVIEW 178 www.neuropsychopharmacology.org Therapeutic Strategies in Fragile X Syndrome: Dysregulated mGluR Signaling and Beyond 1 ,2 ,1,3 Christina Gross , Elizabeth M Berry-Kravis* and Gary J Bassell* 1 2 Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, USA; Departments of Pediatrics, Neurology, 3 and Biochemistry, Rush University Medical Center, Chicago, IL, USA; Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA Fragile X syndrome (FXS) is an inherited neurodevelopmental disease caused by loss of function of the fragile X mental retardation protein (FMRP). In the absence of FMRP, signaling through group 1 metabotropic glutamate receptors is elevated and insensitive to stimulation, which may underlie many of the neurological and neuropsychiatric features of FXS. Treatment of FXS animal models with negative allosteric modulators of these receptors and preliminary clinical trials in human patients support the hypothesis that metabotropic glutamate receptor signaling is a valuable therapeutic target in FXS. However, recent research has also shown that FMRP may regulate diverse aspects of neuronal signaling downstream of several cell surface receptors, suggesting a possible new route to more direct disease-targeted therapies. Here, we summarize promising recent advances in basic research identifying and testing novel therapeutic strategies in FXS models, and evaluate their potential therapeutic benefits. We provide an overview of recent and ongoing clinical trials motivated by some of these findings, and discuss the challenges for both basic science and clinical applications in the continued development of effective disease mechanism-targeted therapies for FXS. -
Regulators of G-Protein Signaling and Their G Substrates
0031-6997/11/6303-728–749$25.00 PHARMACOLOGICAL REVIEWS Vol. 63, No. 3 Copyright © 2011 by The American Society for Pharmacology and Experimental Therapeutics 3038/3698761 Pharmacol Rev 63:728–749, 2011 Printed in U.S.A. ASSOCIATE EDITOR: ARTHUR CHRISTOPOULOS Regulators of G-Protein Signaling and Their G␣ Substrates: Promises and Challenges in Their Use as Drug Discovery Targets Adam J. Kimple, Dustin E. Bosch, Patrick M. Gigue`re, and David P. Siderovski Department of Pharmacology, UNC Neuroscience Center, and Lineberger Comprehensive Cancer Center, the University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina Abstract ................................................................................ 728 I. Introduction............................................................................. 729 A. Biological and pharmaceutical importance of G-protein coupled receptor signaling .......... 729 B. The classic guanine nucleotide cycle of heterotrimeric G-protein subunits .................. 729 C. Structural determinants of G-protein subunit function ................................... 730 1. G␣ subunit........................................................................ 730 2. G␥ dimer ........................................................................ 730 3. Structural basis for intrinsic GTP hydrolysis activity by G␣ subunits ................... 730 4. Structural features of Regulators of G-protein Signaling—the G␣ GTPase-accelerating proteins.......................................................................... -
Methamphetamine-Induced Changes in the Striatal Dopamine Pathway In
Park et al. Journal of Biomedical Science 2011, 18:83 http://www.jbiomedsci.com/content/18/1/83 RESEARCH Open Access Methamphetamine-induced changes in the striatal dopamine pathway in μ-opioid receptor knockout mice Sang Won Park1*, Xine Shen2, Lu-Tai Tien3, Richard Roman1 and Tangeng Ma1 Abstract Background: Repeated exposure to methamphetamine (METH) can cause not only neurotoxicity but also addiction. Behavioral sensitization is widely used as an animal model for the study of drug addiction. We previously reported that the μ-opioid receptor knockout mice were resistant to METH-induced behavioral sensitization but the mechanism is unknown. Methods: The present study determined whether resistance of the μ-opioid receptor (μ-OR) knockout mice to behavioral sensitization is due to differential expression of the stimulatory G protein a subunit (Gas) or regulators of G-protein signaling (RGS) coupled to the dopamine D1 receptor. Mice received daily intraperitoneal injections of saline or METH (10 mg/kg) for 7 consecutive days to induce sensitization. On day 11(following 4 abstinent days), mice were either given a test dose of METH (10 mg/kg) for behavioral testing or sacrificed for neurochemical assays without additional METH treatment. Results: METH challenge-induced stereotyped behaviors were significantly reduced in the μ-opioid receptor knockout mice when compared with those in wild-type mice. Neurochemical assays indicated that there is a decrease in dopamine D1 receptor ligand binding and an increase in the expression of RGS4 mRNA in the striatum of METH-treated μ-opioid receptor knockout mice but not of METH-treated wild-type mice. -
This Thesis Has Been Submitted in Fulfilment of the Requirements for a Postgraduate Degree (E.G
This thesis has been submitted in fulfilment of the requirements for a postgraduate degree (e.g. PhD, MPhil, DClinPsychol) at the University of Edinburgh. Please note the following terms and conditions of use: • This work is protected by copyright and other intellectual property rights, which are retained by the thesis author, unless otherwise stated. • A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. • This thesis cannot be reproduced or quoted extensively from without first obtaining permission in writing from the author. • The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the author. • When referring to this work, full bibliographic details including the author, title, awarding institution and date of the thesis must be given. Expression and subcellular localisation of poly(A)-binding proteins Hannah Burgess PhD The University of Edinburgh 2010 Abstract Poly(A)-binding proteins (PABPs) are important regulators of mRNA translation and stability. In mammals four cytoplasmic PABPs with a similar domain structure have been described - PABP1, tPABP, PABP4 and ePABP. The vast majority of research on PABP mechanism, function and sub-cellular localisation is however limited to PABP1 and little published work has explored the expression of PABP proteins. Here, I examine the tissue distribution of PABP1 and PABP4 in mouse and show that both proteins differ markedly in their expression at both the tissue and cellular level, contradicting the widespread perception that PABP1 is ubiquitously expressed. PABP4 is shown to be widely expressed though with an expression pattern distinct from PABP1, and thus may have a biological function in many tissues. -
Investigation of RNA Binding Proteins Regulated by Mtor
Investigation of RNA binding proteins regulated by mTOR Thesis submitted to the University of Leicester for the degree of Doctor of Philosophy Katherine Morris BSc (University of Leicester) March 2017 1 Investigation of RNA binding proteins regulated by mTOR Katherine Morris, MRC Toxicology Unit, University of Leicester, Leicester, LE1 9HN The mammalian target of rapamycin (mTOR) is a serine/threonine protein kinase which plays a key role in the transduction of cellular energy signals, in order to coordinate and regulate a wide number of processes including cell growth and proliferation via control of protein synthesis and protein degradation. For a number of human diseases where mTOR signalling is dysregulated, including cancer, the clinical relevance of mTOR inhibitors is clear. However, understanding of the mechanisms by which mTOR controls gene expression is incomplete, with implications for adverse toxicological effects of mTOR inhibitors on clinical outcomes. mTOR has been shown to regulate 5’ TOP mRNA expression, though the exact mechanism remains unclear. It has been postulated that this may involve an intermediary factor such as an RNA binding protein, which acts downstream of mTOR signalling to bind and regulate translation or stability of specific messages. This thesis aimed to address this question through the use of whole cell RNA binding protein capture using oligo‐d(T) affinity isolation and subsequent proteomic analysis, and identify RNA binding proteins with differential binding activity following mTOR inhibition. Following validation of 4 identified mTOR‐dependent RNA binding proteins, characterisation of their specific functions with respect to growth and survival was conducted through depletion studies, identifying a promising candidate for further work; LARP1. -
Anti-ELAVL4 / Hud Antibody (ARG42690)
Product datasheet [email protected] ARG42690 Package: 50 μg anti-ELAVL4 / HuD antibody Store at: -20°C Summary Product Description Rabbit Polyclonal antibody recognizes ELAVL4 / HuD Tested Reactivity Hu, Ms, Rat Predict Reactivity Bov, Mk, Rb Tested Application IHC-P, WB Host Rabbit Clonality Polyclonal Isotype IgG Target Name ELAVL4 / HuD Antigen Species Human Immunogen Synthetic peptide corresponding to aa. 8-45 of Human ELAVL4 / HuD. (MEPQVSNGPTSNTSNGPSSNNRNCPSPMQTGATTDDSK) Conjugation Un-conjugated Alternate Names HUD; HuD; Hu-antigen D; Paraneoplastic encephalomyelitis antigen HuD; PNEM; ELAV-like protein 4 Application Instructions Application table Application Dilution IHC-P 1:200 - 1:1000 WB 1:500 - 1:2000 Application Note * The dilutions indicate recommended starting dilutions and the optimal dilutions or concentrations should be determined by the scientist. Calculated Mw 42 kDa Observed Size ~ 45 kDa Properties Form Liquid Purification Affinity purification with immunogen. Buffer 0.2% Na2HPO4, 0.9% NaCl, 0.05% Sodium azide and 5% BSA. Preservative 0.05% Sodium azide Stabilizer 5% BSA Concentration 0.5 mg/ml Storage instruction For continuous use, store undiluted antibody at 2-8°C for up to a week. For long-term storage, aliquot and store at -20°C or below. Storage in frost free freezers is not recommended. Avoid repeated www.arigobio.com 1/4 freeze/thaw cycles. Suggest spin the vial prior to opening. The antibody solution should be gently mixed before use. Note For laboratory research only, not for drug, diagnostic or other use. Bioinformation Gene Symbol ELAVL4 Gene Full Name ELAV like neuron-specific RNA binding protein 4 Function RNA-binding protein that is involved in the post-transcriptional regulation of mRNAs (PubMed:7898713, PubMed:10710437, PubMed:12034726, PubMed:12468554, PubMed:17035636, PubMed:17234598). -
Supplementary Table 1
Supplementary Table 1. 492 genes are unique to 0 h post-heat timepoint. The name, p-value, fold change, location and family of each gene are indicated. Genes were filtered for an absolute value log2 ration 1.5 and a significance value of p ≤ 0.05. Symbol p-value Log Gene Name Location Family Ratio ABCA13 1.87E-02 3.292 ATP-binding cassette, sub-family unknown transporter A (ABC1), member 13 ABCB1 1.93E-02 −1.819 ATP-binding cassette, sub-family Plasma transporter B (MDR/TAP), member 1 Membrane ABCC3 2.83E-02 2.016 ATP-binding cassette, sub-family Plasma transporter C (CFTR/MRP), member 3 Membrane ABHD6 7.79E-03 −2.717 abhydrolase domain containing 6 Cytoplasm enzyme ACAT1 4.10E-02 3.009 acetyl-CoA acetyltransferase 1 Cytoplasm enzyme ACBD4 2.66E-03 1.722 acyl-CoA binding domain unknown other containing 4 ACSL5 1.86E-02 −2.876 acyl-CoA synthetase long-chain Cytoplasm enzyme family member 5 ADAM23 3.33E-02 −3.008 ADAM metallopeptidase domain Plasma peptidase 23 Membrane ADAM29 5.58E-03 3.463 ADAM metallopeptidase domain Plasma peptidase 29 Membrane ADAMTS17 2.67E-04 3.051 ADAM metallopeptidase with Extracellular other thrombospondin type 1 motif, 17 Space ADCYAP1R1 1.20E-02 1.848 adenylate cyclase activating Plasma G-protein polypeptide 1 (pituitary) receptor Membrane coupled type I receptor ADH6 (includes 4.02E-02 −1.845 alcohol dehydrogenase 6 (class Cytoplasm enzyme EG:130) V) AHSA2 1.54E-04 −1.6 AHA1, activator of heat shock unknown other 90kDa protein ATPase homolog 2 (yeast) AK5 3.32E-02 1.658 adenylate kinase 5 Cytoplasm kinase AK7 -
Suppression of Rgsz1 Function Optimizes the Actions of Opioid
Suppression of RGSz1 function optimizes the actions PNAS PLUS of opioid analgesics by mechanisms that involve the Wnt/β-catenin pathway Sevasti Gasparia,b,c, Immanuel Purushothamana,b, Valeria Cogliania,b, Farhana Saklotha,b, Rachael L. Neved, David Howlande, Robert H. Ringf, Elliott M. Rossg,h, Li Shena,b, and Venetia Zacharioua,b,1 aFishberg Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029; bFriedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029; cDepartment of Basic Sciences, University of Crete Medical School, 71003 Heraklion, Greece; dGene Delivery Technology Core, Massachusetts General Hospital, MA 01239; eCure Huntington’s Disease Initiative (CHDI) Foundation, Princeton, NJ 08540; fDepartment of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029; gDepartment of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390; and hGreen Center for Systems Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390 Edited by Solomon H. Snyder, Johns Hopkins University School of Medicine, Baltimore, MD, and approved January 5, 2018 (received for review June 23, 2017) Regulator of G protein signaling z1 (RGSz1), a member of the RGS studies have documented brain region-specific effects of other family of proteins, is present in several networks expressing mu RGS proteins (RGS9-2, RGS7, and RGS4) (29–33) on the opioid receptors (MOPRs). By using genetic mouse models for global functional responses of MOPRs, the role of RGSz1 in opioid or brain region-targeted manipulations of RGSz1 expression, we actions is not known. We hypothesized that the expression and demonstrated that the suppression of RGSz1 function increases the activity of RGSz1 are altered by chronic opioid use and that the analgesic efficacy of MOPR agonists in male and female mice and manipulation of RGSz1 expression will impact the development delays the development of morphine tolerance while decreasing the of tolerance to the drug and its analgesic and rewarding effects.