Association of Serum S100B, S100A1 and Zinc-Α2
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Unnatural Verticilide Enantiomer Inhibits Type 2 Ryanodine Receptor-Mediated Calcium Leak and Is Antiarrhythmic
Unnatural verticilide enantiomer inhibits type 2 ryanodine receptor-mediated calcium leak and is antiarrhythmic Suzanne M. Batistea,1, Daniel J. Blackwellb,1, Kyungsoo Kimb,1, Dmytro O. Kryshtalb, Nieves Gomez-Hurtadob, Robyn T. Rebbeckc, Razvan L. Corneac, Jeffrey N. Johnstona,2, and Bjorn C. Knollmannb,2 aDepartment of Chemistry, Vanderbilt University, Nashville, TN 37235; bDepartment of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232; and cDepartment of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN 55455 Edited by Dale L. Boger, The Scripps Research Institute, La Jolla, CA, and approved January 15, 2019 (received for review September 27, 2018) Ca2+ leak via ryanodine receptor type 2 (RyR2) can cause poten- heart diseases associated with both atrial and ventricular arrhyth- tially fatal arrhythmias in a variety of heart diseases and has also mia (9). Mutations in RyR2 and its binding partners, which increase + been implicated in neurodegenerative and seizure disorders, mak- SR Ca2 leak, cause primary atrial and ventricular arrhythmia ing RyR2 an attractive therapeutic target for drug development. syndromes such as catecholaminergic polymorphic ventricular Here we synthesized and investigated the fungal natural product tachycardia (CPVT), providing strong evidence for the mechanistic and known insect RyR antagonist (−)-verticilide and several conge- contribution of RyR2 to arrhythmia risk in humans (10). Further ners to determine their activity against mammalian RyR2. Although support comes from gene-targeted mouse models of CPVT, where + the cyclooligomeric depsipeptide natural product (−)-verticilide had catecholamine-induced spontaneous Ca2 release from the SR no effect, its nonnatural enantiomer [ent-(+)-verticilide] signifi- via RyR2 generates potentially fatal cardiac arrhythmias (11, 12). -
Glial Protein S100B Modulates Long-Term Neuronal Synaptic Plasticity
Glial protein S100B modulates long-term neuronal synaptic plasticity Hiroshi Nishiyama*†, Thomas Kno¨ pfel†, Shogo Endo‡, and Shigeyoshi Itohara*§ *Laboratories for Behavioral Genetics and †Neuronal Circuit Dynamics, and ‡Neuronal Circuit Mechanisms Research Group, Brain Science Institute (BSI), Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan Communicated by Richard F. Thompson, University of Southern California, Los Angeles, CA, January 11, 2002 (received for review August 1, 2001) Glial cells are traditionally regarded as elements for structural subject of debate (1). Transgenic mice overexpressing human support and ionic homeostasis, but have recently attracted atten- S100B exhibit impaired hippocampal LTP and spatial learning tion as putative integral elements of the machinery involved in (11). Transgenic mice overexpressing S100B might not be ap- synaptic transmission and plasticity. Here, we demonstrate that propriate for evaluating the physiological roles of S100B, how- calcium-binding protein S100B, which is synthesized in consider- ever, because overexpression of S100B partly mimics patholog- able amounts in astrocytes (a major glial cell subtype), modulates ical conditions in some neuronal diseases, such as Down’s long-term synaptic plasticity. Mutant mice devoid of S100B devel- syndrome and Alzheimer’s disease (12, 13). The constitutive oped normally and had no detectable abnormalities in the cyto- overexpression of S100B might cause chronic neuronal damage architecture of the brain. These mutant mice, however, had (14, 15). Thus, there is no clear consensus regarding the signif- strengthened synaptic plasticity as identified by enhanced long- icance of this glial protein in neuronal synaptic plasticity. term potentiation (LTP) in the hippocampal CA1 region. -
Increased S100B Blood Levels in Unmedicated and Treated
Molecular Psychiatry (2001) 6, 445–449 2001 Nature Publishing Group All rights reserved 1359-4184/01 $15.00 www.nature.com/mp ORIGINAL RESEARCH ARTICLE Increased S100B blood levels in unmedicated and treated schizophrenic patients are correlated with negative symptomatology M Rothermundt1, U Missler2, V Arolt1, M Peters1, J Leadbeater3, M Wiesmann2, S Rudolf4, KP Wandinger5 and H Kirchner4 1Department of Psychiatry, University of Muenster School of Medicine, Albert-Schweitzer-Str 11, D-48129 Muenster, Germany; 2Department of Neuroradiology, Medical University of Luebeck, Ratzeburger Allee 160, D-23538 Luebeck, Germany; 3Psychiatric Hospital, Friedrich-Ebert-Str, D-23774 Heiligenhafen, Germany; 4Institute of Immunology and Transfusion Medicine, Medical University of Luebeck, Ratzeburger Allee 160, D-23538 Luebeck, Germany; 5Department of Neurology, Charite Campus Mitte, NWFZ 2680, R 04 023, Schumannstr 20/21, D-10117 Berlin, Germany Keywords: nerve tissue protein S100; schizophrenia; anti- The term S100 comprises a heterogeneous family of psychotic agents; negative symptomatology; psychiatric acidic calcium-binding proteins of which the two pro- status teins S100A1 and S100B are considered to be the most S100B, a calcium-binding protein produced by astroglial relevant members regarding neurological disease.3 cells, is a marker of astroglial cellular integrity. It has S100B predominates in the brain. S100A1 and S100B been shown to be increased in acute brain damage and form dimeric proteins with a molecular weight of 21 neurodegeneration. A recent study showed increased kDA, which have previously been named S100a S100B levels in medicated acutely psychotic patients (S100A1–S100B), S100b (S100B–S100B), and S100a0 with schizophrenia. The study presented here included (S100A–S100A).4 S100B is synthesized mainly by 26 drug-free patients with acute schizophrenia and 26 astrocytes and evolves paracrine and autocrine effects matched healthy controls. -
Preclinical Model Systems of Ryanodine Receptor 1-Related Myopathies and Malignant Hyperthermia
Lawal et al. Orphanet Journal of Rare Diseases (2020) 15:113 https://doi.org/10.1186/s13023-020-01384-x REVIEW Open Access Preclinical model systems of ryanodine receptor 1-related myopathies and malignant hyperthermia: a comprehensive scoping review of works published 1990– 2019 Tokunbor A. Lawal1, Emily S. Wires2, Nancy L. Terry3, James J. Dowling4 and Joshua J. Todd1* Abstract Background: Pathogenic variations in the gene encoding the skeletal muscle ryanodine receptor (RyR1) are associated with malignant hyperthermia (MH) susceptibility, a life-threatening hypermetabolic condition and RYR1- related myopathies (RYR1-RM), a spectrum of rare neuromuscular disorders. In RYR1-RM, intracellular calcium dysregulation, post-translational modifications, and decreased protein expression lead to a heterogenous clinical presentation including proximal muscle weakness, contractures, scoliosis, respiratory insufficiency, and ophthalmoplegia. Preclinical model systems of RYR1-RM and MH have been developed to better understand underlying pathomechanisms and test potential therapeutics. Methods: We conducted a comprehensive scoping review of scientific literature pertaining to RYR1-RM and MH preclinical model systems in accordance with the PRISMA Scoping Reviews Checklist and the framework proposed by Arksey and O’Malley. Two major electronic databases (PubMed and EMBASE) were searched without language restriction for articles and abstracts published between January 1, 1990 and July 3, 2019. Results: Our search yielded 5049 publications from which 262 were included in this review. A majority of variants tested in RYR1 preclinical models were localized to established MH/central core disease (MH/CCD) hot spots. A total of 250 unique RYR1 variations were reported in human/rodent/porcine models with 95% being missense substitutions. -
DIPPER, a Spatiotemporal Proteomics Atlas of Human Intervertebral Discs
TOOLS AND RESOURCES DIPPER, a spatiotemporal proteomics atlas of human intervertebral discs for exploring ageing and degeneration dynamics Vivian Tam1,2†, Peikai Chen1†‡, Anita Yee1, Nestor Solis3, Theo Klein3§, Mateusz Kudelko1, Rakesh Sharma4, Wilson CW Chan1,2,5, Christopher M Overall3, Lisbet Haglund6, Pak C Sham7, Kathryn Song Eng Cheah1, Danny Chan1,2* 1School of Biomedical Sciences, , The University of Hong Kong, Hong Kong; 2The University of Hong Kong Shenzhen of Research Institute and Innovation (HKU-SIRI), Shenzhen, China; 3Centre for Blood Research, Faculty of Dentistry, University of British Columbia, Vancouver, Canada; 4Proteomics and Metabolomics Core Facility, The University of Hong Kong, Hong Kong; 5Department of Orthopaedics Surgery and Traumatology, HKU-Shenzhen Hospital, Shenzhen, China; 6Department of Surgery, McGill University, Montreal, Canada; 7Centre for PanorOmic Sciences (CPOS), The University of Hong Kong, Hong Kong Abstract The spatiotemporal proteome of the intervertebral disc (IVD) underpins its integrity *For correspondence: and function. We present DIPPER, a deep and comprehensive IVD proteomic resource comprising [email protected] 94 genome-wide profiles from 17 individuals. To begin with, protein modules defining key †These authors contributed directional trends spanning the lateral and anteroposterior axes were derived from high-resolution equally to this work spatial proteomes of intact young cadaveric lumbar IVDs. They revealed novel region-specific Present address: ‡Department profiles of regulatory activities -
Human Induced Pluripotent Stem Cell–Derived Podocytes Mature Into Vascularized Glomeruli Upon Experimental Transplantation
BASIC RESEARCH www.jasn.org Human Induced Pluripotent Stem Cell–Derived Podocytes Mature into Vascularized Glomeruli upon Experimental Transplantation † Sazia Sharmin,* Atsuhiro Taguchi,* Yusuke Kaku,* Yasuhiro Yoshimura,* Tomoko Ohmori,* ‡ † ‡ Tetsushi Sakuma, Masashi Mukoyama, Takashi Yamamoto, Hidetake Kurihara,§ and | Ryuichi Nishinakamura* *Department of Kidney Development, Institute of Molecular Embryology and Genetics, and †Department of Nephrology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; ‡Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, Hiroshima, Japan; §Division of Anatomy, Juntendo University School of Medicine, Tokyo, Japan; and |Japan Science and Technology Agency, CREST, Kumamoto, Japan ABSTRACT Glomerular podocytes express proteins, such as nephrin, that constitute the slit diaphragm, thereby contributing to the filtration process in the kidney. Glomerular development has been analyzed mainly in mice, whereas analysis of human kidney development has been minimal because of limited access to embryonic kidneys. We previously reported the induction of three-dimensional primordial glomeruli from human induced pluripotent stem (iPS) cells. Here, using transcription activator–like effector nuclease-mediated homologous recombination, we generated human iPS cell lines that express green fluorescent protein (GFP) in the NPHS1 locus, which encodes nephrin, and we show that GFP expression facilitated accurate visualization of nephrin-positive podocyte formation in -
S100A4 Inhibits Cell Proliferation by Interfering with the S100A1-RAGE V Domain
RESEARCH ARTICLE S100A4 inhibits cell proliferation by interfering with the S100A1-RAGE V domain 1 1 2,3 1 Md. Imran Khan , Tai Yuan , Ruey-Hwang Chou , Chin YuID * 1 National Tsing Hua University, Chemistry Department, Hsinchu, Taiwan, 2 Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung, Taiwan, 3 Department of Biotechnology, Asia University, Taichung, Taiwan * [email protected] a1111111111 a1111111111 a1111111111 Abstract a1111111111 2+ a1111111111 The Ca -dependent human S100A4 (Mts1) protein is part of the S100 family. Here, we studied the interactions of S100A4 with S100A1 using nuclear magnetic resonance (NMR) spectroscopy. We used the chemical shift perturbed residues from HSQC to model S100A4 and S100A1 complex with HADDOCK software. We observed that S100A1 and the RAGE V domain have an analogous binding area in S100A4. We discovered that S100A4 acts as OPEN ACCESS an antagonist among the RAGE V domain and S100A1, which inhibits tumorigenesis and Citation: Khan M.I, Yuan T, Chou R-H, Yu C (2019) cell proliferation. We used a WST-1 assay to examine the bioactivity of S100A1 and S100A4 inhibits cell proliferation by interfering with the S100A1-RAGE V domain. PLoS ONE 14(2): S100A4. This study could possibly be beneficial for evaluating new proteins for the treat- e0212299. https://doi.org/10.1371/journal. ment of diseases. pone.0212299 Editor: Eugene A. Permyakov, Russian Academy of Medical Sciences, RUSSIAN FEDERATION Received: December 24, 2018 1. Introduction Accepted: January 30, 2019 The family of human S100 proteins are Ca2+-dependent, slightly acidic proteins including Published: February 19, 2019 more than 20 family members with molecular weights of 9−13 kDa in vertebrates [1]. -
Distinct Subcellular Localization of Calcium Binding S100 Proteins in Human Smooth Muscle Cells and Their Relocation in Response to Rises in Intracellular Calcium
Journal of Cell Science 111, 2043-2054 (1998) 2043 Printed in Great Britain © The Company of Biologists Limited 1998 JCS3760 Distinct subcellular localization of calcium binding S100 proteins in human smooth muscle cells and their relocation in response to rises in intracellular calcium Anna Mandinova1, Dan Atar2, Beat W. Schäfer3, Martin Spiess1, Ueli Aebi1 and Claus W. Heizmann3,* 1Maurice E. Müller-Institute, Biocentrum, University of Basel, 4056 Basel, Switzerland 2Division of Cardiology, Department of Internal Medicine, University Hospital, 8032 Zürich, Switzerland 3Division of Clinical Chemistry and Biochemistry, Department of Pediatrics, University of Zürich, 8032 Zürich, Switzerland *Author for correspondence (e-mail: [email protected]) Accepted 19 May; published on WWW 30 June 1998 SUMMARY Changes in cytosolic Ca2+ concentration control a wide associated with the sarcoplasmic reticulum and with actin range of cellular responses, and intracellular Ca2+-binding stress fibers. In contrast, S100A2 was located primarily in proteins are the key molecules to transduce Ca2+ signaling the cell nucleus. Using a sedimentation assay and via interactions with different types of target proteins. subsequent electron microscopy after negative staining, we Among these, S100 Ca2+-binding proteins, characterized by demonstrated that S100A1 directly interacts with a common structural motif, the EF-hand, have recently filamentous actin in a Ca2+-dependent manner. After attracted major interest due to their cell- and tissue-specific thapsigargin (1 µM) induced increase of the intracellular expression pattern and involvement in various pathological Ca2+ concentration, specific vesicular structures in the processes. The aim of our study was to identify the sarcoplasmic reticulum region of the cell were formed with subcellular localization of S100 proteins in vascular smooth high S100 protein content. -
S100A4 Inhibits Cell Proliferation by Interfering with the RAGE V Domain-S100A1
bioRxiv preprint doi: https://doi.org/10.1101/391136; this version posted August 13, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. [Document title] S100A4 inhibits cell proliferation by interfering with the RAGE V domain-S100A1 M I Khan, T Yuan, R H Chou and C Yu Keywords: S100A1, RAGE V domain, S100A4, NMR spectroscopy, WST-1 assay, Cell proliferation Abstract The Ca2+-dependent human S100A4 (Mts1) protein is part of the S100 family, and the S100A1 protein is the target of S100A4. Here, we studied the interactions of S100A1 with S100A4 using nuclear magnetic resonance (NMR; 700 MHz) spectroscopy. We used HADDOCK software to model S100A4 and S100A1, and we observed that S100A1 and the RAGE V domain have an analogous binding area in S100A4. We discovered that S100A4 acts as an antagonist among the RAGE V domain and S100A1, which inhibits tumorigenesis and cell proliferation. We used a WST-1 assay to examine the bioactivity of S100A1 and S100A4. This study could possibly be beneficial for evaluating new proteins for the treatment of cancer. 1 bioRxiv preprint doi: https://doi.org/10.1101/391136; this version posted August 13, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. [Document title] 1. Introduction The family of human S100 proteins are Ca2+-dependent, slightly acidic proteins comprising more than 20 family members with molecular weights of 9−13 kDa in vertebrates (1). -
Zimmer Cell Calcium 2013 Mammalian S100 Evolution.Pdf
Cell Calcium 53 (2013) 170–179 Contents lists available at SciVerse ScienceDirect Cell Calcium jo urnal homepage: www.elsevier.com/locate/ceca Evolution of the S100 family of calcium sensor proteins a,∗ b b,1 b Danna B. Zimmer , Jeannine O. Eubanks , Dhivya Ramakrishnan , Michael F. Criscitiello a Center for Biomolecular Therapeutics and Department of Biochemistry & Molecular Biology, University of Maryland School of Medicine, 108 North Greene Street, Baltimore, MD 20102, United States b Comparative Immunogenetics Laboratory, Department of Veterinary Pathobiology, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843-4467, United States a r t i c l e i n f o a b s t r a c t 2+ Article history: The S100s are a large group of Ca sensors found exclusively in vertebrates. Transcriptomic and genomic Received 4 October 2012 data from the major radiations of mammals were used to derive the evolution of the mammalian Received in revised form 1 November 2012 S100s genes. In human and mouse, S100s and S100 fused-type proteins are in a separate clade from Accepted 3 November 2012 2+ other Ca sensor proteins, indicating that an ancient bifurcation between these two gene lineages Available online 14 December 2012 has occurred. Furthermore, the five genomic loci containing S100 genes have remained largely intact during the past 165 million years since the shared ancestor of egg-laying and placental mammals. Keywords: Nonetheless, interesting births and deaths of S100 genes have occurred during mammalian evolution. Mammals The S100A7 loci exhibited the most plasticity and phylogenetic analyses clarified relationships between Phylogenetic analyses the S100A7 proteins encoded in the various mammalian genomes. -
Specificity of Molecular Fragments Binding to S100B Versus S100A1
molecules Article Specificity of Molecular Fragments Binding to S100B versus S100A1 as Identified by NMR and Site Identification by Ligand Competitive Saturation (SILCS) Brianna D. Young 1,2 , Wenbo Yu 2,3,4 , Darex J. Vera Rodríguez 1,2, Kristen M. Varney 1,2,4, Alexander D. MacKerell Jr. 2,3,4 and David J. Weber 1,2,4,* 1 Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, 108 N. Greene St., Baltimore, MD 21201, USA; [email protected] (B.D.Y.); [email protected] (D.J.V.R.); [email protected] (K.M.V.) 2 Center for Biomolecular Therapeutics (CBT), Baltimore, MD 21201, USA; [email protected] (W.Y.); [email protected] (A.D.M.J.) 3 Computer-Aided Drug Design Center, Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, MD 21201, USA 4 Institute for Bioscience and Biotechnology Research (IBBR), Rockville, MD 20850, USA * Correspondence: [email protected]; Tel.: +01-410-706-4354 Abstract: S100B, a biomarker of malignant melanoma, interacts with the p53 protein and diminishes its tumor suppressor function, which makes this S100 family member a promising therapeutic target for treating malignant melanoma. However, it is a challenge to design inhibitors that are specific for S100B in melanoma versus other S100-family members that are important for normal cellular activi- ties. For example, S100A1 is most similar in sequence and structure to S100B, and this S100 protein is important for normal skeletal and cardiac muscle function. Therefore, a combination of NMR and Citation: Young, B.D.; Yu, W.; Rodríguez, D.J.V.; Varney, K.M.; computer aided drug design (CADD) was used to initiate the design of specific S100B inhibitors. -
Structure and Function of the Human Ryanodine Receptors and Their Association with Myopathies—Present State, Challenges, and Perspectives
molecules Review Structure and Function of the Human Ryanodine Receptors and Their Association with Myopathies—Present State, Challenges, and Perspectives Vladena Bauerová-Hlinková * , Dominika Hajdúchová † and Jacob A. Bauer Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51 Bratislava, Slovakia; [email protected] (D.H.); [email protected] (J.A.B.) * Correspondence: [email protected]; Tel.: +421-2-5930-7439 † Current address: Department of Pathological Physiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Malá Hora 4C, 036 01 Martin, Slovakia. Academic Editor: Jacopo Sgrignani and Giovanni Grazioso Received: 31 July 2020; Accepted: 30 August 2020; Published: 4 September 2020 Abstract: Cardiac arrhythmias are serious, life-threatening diseases associated with the dysregulation of Ca2+ influx into the cytoplasm of cardiomyocytes. This dysregulation often arises from dysfunction of ryanodine receptor 2 (RyR2), the principal Ca2+ release channel. Dysfunction of RyR1, the skeletal muscle isoform, also results in less severe, but also potentially life-threatening syndromes. The RYR2 and RYR1 genes have been found to harbor three main mutation “hot spots”, where mutations change the channel structure, its interdomain interface properties, its interactions with its binding partners, or its dynamics. In all cases, the result is a defective release of Ca2+ ions from the sarcoplasmic reticulum into the myocyte cytoplasm. Here, we provide an overview of the most frequent diseases resulting from mutations to RyR1 and RyR2, briefly review some of the recent experimental structural work on these two molecules, detail some of the computational work describing their dynamics, and summarize the known changes to the structure and function of these receptors with particular emphasis on their N-terminal, central, and channel domains.