1
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Bagdadi N, Wu J, Delaroche J, Serre L, Delphin C, De Andrade M, Carcel M, Nawabi H, Pinson B, Vérin C, Couté Y, Gory-Fauré S, Andrieux A, Stoppin-Mellet V, Arnal I. Stable GDP-tubulin islands rescue dynamic microtubules. J Cell Biol 2024; 223:e202307074. [PMID: 38758215 PMCID: PMC11101955 DOI: 10.1083/jcb.202307074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 02/26/2024] [Accepted: 05/04/2024] [Indexed: 05/18/2024] Open
Abstract
Microtubules are dynamic polymers that interconvert between phases of growth and shrinkage, yet they provide structural stability to cells. Growth involves hydrolysis of GTP-tubulin to GDP-tubulin, which releases energy that is stored within the microtubule lattice and destabilizes it; a GTP cap at microtubule ends is thought to prevent GDP subunits from rapidly dissociating and causing catastrophe. Here, using in vitro reconstitution assays, we show that GDP-tubulin, usually considered inactive, can itself assemble into microtubules, preferentially at the minus end, and promote persistent growth. GDP-tubulin-assembled microtubules are highly stable, displaying no detectable spontaneous shrinkage. Strikingly, islands of GDP-tubulin within dynamic microtubules stop shrinkage events and promote rescues. Microtubules thus possess an intrinsic capacity for stability, independent of accessory proteins. This finding provides novel mechanisms to explain microtubule dynamics.
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Affiliation(s)
- Nassiba Bagdadi
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Juliette Wu
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Julie Delaroche
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Laurence Serre
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Christian Delphin
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Manon De Andrade
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Marion Carcel
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Homaira Nawabi
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Benoît Pinson
- Metabolic Analyses Service, TBMCore—Université de Bordeaux—CNRS UAR 3427—INSERM US005, Bordeaux, France
| | - Claire Vérin
- Université Grenoble Alpes, INSERM, CEA, UA13 BGE, CNRS, FR2048, Grenoble, France
| | - Yohann Couté
- Université Grenoble Alpes, INSERM, CEA, UA13 BGE, CNRS, FR2048, Grenoble, France
| | - Sylvie Gory-Fauré
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Annie Andrieux
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Virginie Stoppin-Mellet
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
| | - Isabelle Arnal
- Université Grenoble Alpes, INSERM, U1216, CNRS, CEA, Grenoble Institut Neurosciences (GIN), Grenoble, France
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2
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Petitgas C, Seugnet L, Dulac A, Matassi G, Mteyrek A, Fima R, Strehaiano M, Dagorret J, Chérif-Zahar B, Marie S, Ceballos-Picot I, Birman S. Metabolic and neurobehavioral disturbances induced by purine recycling deficiency in Drosophila. eLife 2024; 12:RP88510. [PMID: 38700995 PMCID: PMC11068357 DOI: 10.7554/elife.88510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024] Open
Abstract
Adenine phosphoribosyltransferase (APRT) and hypoxanthine-guanine phosphoribosyltransferase (HGPRT) are two structurally related enzymes involved in purine recycling in humans. Inherited mutations that suppress HGPRT activity are associated with Lesch-Nyhan disease (LND), a rare X-linked metabolic and neurological disorder in children, characterized by hyperuricemia, dystonia, and compulsive self-injury. To date, no treatment is available for these neurological defects and no animal model recapitulates all symptoms of LND patients. Here, we studied LND-related mechanisms in the fruit fly. By combining enzymatic assays and phylogenetic analysis, we confirm that no HGPRT activity is expressed in Drosophila melanogaster, making the APRT homolog (Aprt) the only purine-recycling enzyme in this organism. Whereas APRT deficiency does not trigger neurological defects in humans, we observed that Drosophila Aprt mutants show both metabolic and neurobehavioral disturbances, including increased uric acid levels, locomotor impairments, sleep alterations, seizure-like behavior, reduced lifespan, and reduction of adenosine signaling and content. Locomotor defects could be rescued by Aprt re-expression in neurons and reproduced by knocking down Aprt selectively in the protocerebral anterior medial (PAM) dopaminergic neurons, the mushroom bodies, or glia subsets. Ingestion of allopurinol rescued uric acid levels in Aprt-deficient mutants but not neurological defects, as is the case in LND patients, while feeding adenosine or N6-methyladenosine (m6A) during development fully rescued the epileptic behavior. Intriguingly, pan-neuronal expression of an LND-associated mutant form of human HGPRT (I42T), but not the wild-type enzyme, resulted in early locomotor defects and seizure in flies, similar to Aprt deficiency. Overall, our results suggest that Drosophila could be used in different ways to better understand LND and seek a cure for this dramatic disease.
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Affiliation(s)
- Céline Petitgas
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
- Metabolomic and Proteomic Biochemistry Laboratory, Necker-Enfants Malades Hospital and Paris Cité UniversityParisFrance
| | - Laurent Seugnet
- Integrated Physiology of the Brain Arousal Systems (WAKING), Lyon Neuroscience Research Centre, INSERM/CNRS/UCBL1BronFrance
| | - Amina Dulac
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
| | - Giorgio Matassi
- Dipartimento di Scienze Agroalimentari, Ambientali e Animali, University of UdineUdineItaly
- UMR “Ecology and Dynamics of Anthropogenic Systems” (EDYSAN), CNRS, Université de Picardie Jules VerneAmiensFrance
| | - Ali Mteyrek
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
| | - Rebecca Fima
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
| | - Marion Strehaiano
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
| | - Joana Dagorret
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
| | - Baya Chérif-Zahar
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
| | - Sandrine Marie
- Laboratory of Metabolic Diseases, Cliniques Universitaires Saint-Luc, Université catholique de LouvainBrusselsBelgium
| | - Irène Ceballos-Picot
- Metabolomic and Proteomic Biochemistry Laboratory, Necker-Enfants Malades Hospital and Paris Cité UniversityParisFrance
| | - Serge Birman
- Genes Circuits Rhythms and Neuropathology, Brain Plasticity Unit, CNRS, ESPCI Paris, PSL Research UniversityParisFrance
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3
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Pan S, Truss A, Hussain S. Recurrent Fevers, Dysautonomia, and Dehydration in a Patient With Lesch-Nyhan Syndrome. Cureus 2024; 16:e61170. [PMID: 38933625 PMCID: PMC11203274 DOI: 10.7759/cureus.61170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
Lesch-Nyhan syndrome (LNS) is a disease characterized by a reduced ability to recycle purines, leading to increased de novo purine synthesis and uric acid production. Patients classically present with an array of hyperuricemic, neurologic, and behavioral symptoms. In this report, we describe a 26-year-old male with a history of LNS and recurrent fevers of unknown origin who presented to the emergency department (ED) with a fever, hypotension, and hypernatremia. We suspect that our patient's presentation was caused by autonomic instability in the setting of LNS leading to excessive free water loss. This report highlights a rare but life-threatening manifestation of LNS.
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Affiliation(s)
- Samuel Pan
- Department of Medicine, Mount Sinai Hospital, New York, USA
| | - Annie Truss
- Department of Family Medicine, Rutgers Robert Wood Johnson Medical School, Piscataway, USA
| | - Sabiha Hussain
- Division of Pulmonary and Critical Care Medicine, Robert Wood Johnson University Hospital, New Brunswick, USA
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4
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Escudero-Ferruz P, Ontiveros N, Cano-Estrada C, Sutcliffe DJ, Jinnah HA, Torres RJ, López JM. A new physiological medium uncovers biochemical and cellular alterations in Lesch-Nyhan disease fibroblasts. Mol Med 2024; 30:3. [PMID: 38172668 PMCID: PMC10765874 DOI: 10.1186/s10020-023-00774-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Lesch-Nyhan disease (LND) is a severe neurological disorder caused by the genetic deficiency of hypoxanthine-guanine phosphoribosyltransferase (HGprt), an enzyme involved in the salvage synthesis of purines. To compensate this deficiency, there is an acceleration of the de novo purine biosynthetic pathway. Most studies have failed to find any consistent abnormalities of purine nucleotides in cultured cells obtained from the patients. Recently, it has been shown that 5-aminoimidazole-4-carboxamide riboside 5'-monophosphate (ZMP), an intermediate of the de novo pathway, accumulates in LND fibroblasts maintained with RPMI containing physiological levels (25 nM) of folic acid (FA), which strongly differs from FA levels of regular cell culture media (2200 nM). However, RPMI and other standard media contain non-physiological levels of many nutrients, having a great impact in cell metabolism that does not precisely recapitulate the in vivo behavior of cells. METHODS We prepared a new culture medium containing physiological levels of all nutrients, including vitamins (Plasmax-PV), to study the potential alterations of LND fibroblasts that may have been masked by the usage of non-physiological media. We quantified ZMP accumulation under different culture conditions and evaluated the activity of two known ZMP-target proteins (AMPK and ADSL), the mRNA expression of the folate carrier SLC19A1, possible mitochondrial alterations and functional consequences in LND fibroblasts. RESULTS LND fibroblasts maintained with Plasmax-PV show metabolic adaptations such a higher glycolytic capacity, increased expression of the folate carrier SCL19A1, and functional alterations such a decreased mitochondrial potential and reduced cell migration compared to controls. These alterations can be reverted with high levels of folic acid, suggesting that folic acid supplements might be a potential treatment for LND. CONCLUSIONS A complete physiological cell culture medium reveals new alterations in Lesch-Nyhan disease. This work emphasizes the importance of using physiological cell culture conditions when studying a metabolic disorder.
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Affiliation(s)
- Paula Escudero-Ferruz
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain
| | - Neus Ontiveros
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain
| | - Claudia Cano-Estrada
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain
| | - Diane J Sutcliffe
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
| | - H A Jinnah
- Department of Neurology, Emory University School of Medicine, 101 Woodruff Circle, 6305 Woodruff Memorial Building, Atlanta, GA, 30322, USA
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
- Department of Pediatrics, Emory University School Medicine, Atlanta, GA, 30322, USA
| | - Rosa J Torres
- Center for Biomedical Network Research on Rare Diseases, Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
- Department of Biochemistry, La Paz University Hospital Health Research Institute, IdiPaz, 28046, Madrid, Spain
| | - José M López
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain.
- Departament de Bioquímica i Biologia Molecular, Unitat de Bioquímica, Facultat de Medicina, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain.
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5
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Sun Z, Sun Y, Shen J, Wang C, Wei Y. Simultaneous enrichment and sequential elution of cis-diol containing molecules and deoxyribonucleotides with bifunctional boronate and titanium (Ⅳ) ion modified-magnetic nanoparticles prior to quantitation by high performance liquid chromatography. J Chromatogr A 2023; 1709:464386. [PMID: 37722178 DOI: 10.1016/j.chroma.2023.464386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/20/2023]
Abstract
Some diseases can cause abnormal concentrations of catecholamines (CAs), nucleosides (NSs) and nucleotides (NTs) in patients. Previous studies normally focused on the detection of the three types of substances separately. In this work, a bifunctional boronate and titanium (Ⅳ) ion affinity magnetic adsorbent with high-capacity was prepared. The adsorbent can simultaneously enrich CAs, NSs and NTs in a single extraction process, and the adsorbed analytes can be sequentially eluted by 1.0% trifluoroacetic acid and 20.0 mmol L-1 Na3PO4. An analytical method of the analytes has been established by coupling the adsorbent with RP-HPLC. The method has low detection limits (0.039-0.708 ng mL-1) and good reproducibility (inter- and intra-day of assay RSDs less than 15.0%). Serum sample from healthy volunteer was successfully quantified for two CAs, four NSs and five NTs. Compared with the reported methods, the proposed method is simpler to operate, consume less samples, and has enough accurate and sensitivity to obtain comprehensive information on the concentrations of analytes in a single extraction process.
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Affiliation(s)
- Zhian Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Yao Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Jiwei Shen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Chaozhan Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Yinmao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China.
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6
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Pinson B, Moenner M, Saint-Marc C, Granger-Farbos A, Daignan-Fornier B. On-demand utilization of phosphoribosyl pyrophosphate by downstream anabolic pathways. J Biol Chem 2023; 299:105011. [PMID: 37414150 PMCID: PMC10413152 DOI: 10.1016/j.jbc.2023.105011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/08/2023] Open
Abstract
The pentose phosphate pathway (PPP) is critical for anabolism and biomass production. Here we show that the essential function of PPP in yeast is the synthesis of phosphoribosyl pyrophosphate (PRPP) catalyzed by PRPP-synthetase. Using combinations of yeast mutants, we found that a mildly decreased synthesis of PRPP affects biomass production, resulting in reduced cell size, while a more severe decrease ends up affecting yeast doubling time. We establish that it is PRPP itself that is limiting in invalid PRPP-synthetase mutants and that the resulting metabolic and growth defect can be bypassed by proper supplementation of the medium with ribose-containing precursors or by the expression of bacterial or human PRPP-synthetase. In addition, using documented pathologic human hyperactive forms of PRPP-synthetase, we show that intracellular PRPP as well as its derived products can be increased in both human and yeast cells, and we describe the ensuing metabolic and physiological consequences. Finally, we found that PRPP consumption appears to take place "on demand" by the various PRPP-utilizing pathways, as shown by blocking or increasing the flux in specific PRPP-consuming metabolic routes. Overall, our work reveals important similarities between human and yeast for both synthesis and consumption of PRPP.
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Affiliation(s)
- Benoît Pinson
- Institut de Biochimie et Génétique Cellulaires, UMR 5095, CNRS - Université de Bordeaux, Bordeaux, France; Metabolic Analyse Service, TBMCore - Université de Bordeaux - CNRS UAR 3427 - INSERM US005, Bordeaux, France
| | - Michel Moenner
- Institut de Biochimie et Génétique Cellulaires, UMR 5095, CNRS - Université de Bordeaux, Bordeaux, France
| | - Christelle Saint-Marc
- Institut de Biochimie et Génétique Cellulaires, UMR 5095, CNRS - Université de Bordeaux, Bordeaux, France
| | - Alexandra Granger-Farbos
- Metabolic Analyse Service, TBMCore - Université de Bordeaux - CNRS UAR 3427 - INSERM US005, Bordeaux, France
| | - Bertrand Daignan-Fornier
- Institut de Biochimie et Génétique Cellulaires, UMR 5095, CNRS - Université de Bordeaux, Bordeaux, France.
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7
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Differential Uridyl-diphosphate-Glucuronosyl Transferase 1A enzymatic arsenal explains the specific cytotoxicity of resveratrol towards tumor colorectal cells. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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8
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Han ST, Kim AC, Garcia K, Schimmenti LA, Macnamara E, Network UD, Gahl WA, Malicdan MC, Tifft CJ. PUS7 deficiency in human patients causes profound neurodevelopmental phenotype by dysregulating protein translation. Mol Genet Metab 2022; 135:221-229. [PMID: 35144859 PMCID: PMC8958514 DOI: 10.1016/j.ymgme.2022.01.103] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/16/2021] [Accepted: 01/25/2022] [Indexed: 01/28/2023]
Abstract
Protein translation is a highly regulated process involving the interaction of numerous genes on every component of the protein translation machinery. Upregulated protein translation is a hallmark of cancer and is implicated in autism spectrum disorder, but the risks of developing each disease do not appear to be correlated with one another. In this study we identified two siblings from the NIH Undiagnosed Diseases Program with loss of function variants in PUS7, a gene previously implicated in the regulation of total protein translation. These patients exhibited a neurodevelopmental phenotype including autism spectrum disorder in the proband. Both patients also had features of Lesch-Nyhan syndrome, including hyperuricemia and self-injurious behavior, but without pathogenic variants in HPRT1. Patient fibroblasts demonstrated upregulation of protein synthesis, including elevated MYC protein, but did not exhibit increased rates of cell proliferation. Interestingly, the dysregulation of protein translation also resulted in mildly decreased levels of HPRT1 protein suggesting an association between dysregulated protein translation and the LNS-like phenotypic findings. These findings strengthen the correlation between neurodevelopmental disease, particularly autism spectrum disorders, and the rate of protein translation.
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Affiliation(s)
- Sangwoo T Han
- Medical Genetics Branch, National Human Genome Research Institute, Bethesda, MD 20892, United States of America.
| | - Andrew C Kim
- Medical Genetics Branch, National Human Genome Research Institute, Bethesda, MD 20892, United States of America
| | - Karolyn Garcia
- Medical Genetics Branch, National Human Genome Research Institute, Bethesda, MD 20892, United States of America
| | - Lisa A Schimmenti
- Department of Clinical Genomics, Ophthalmology, Otorhinolaryngology, and Biochemistry and Molecular Biology, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55902, United States of America
| | - Ellen Macnamara
- Undiagnosed Diseases Program, Office of the Director, National Institutes of Health, Bethesda, MD 20892, United States of America
| | - Undiagnosed Diseases Network
- Undiagnosed Diseases Network, Common Fund, Office of the Director, NIH, Bethesda, MD 20892, United States of America
| | - William A Gahl
- Medical Genetics Branch, National Human Genome Research Institute, Bethesda, MD 20892, United States of America; Undiagnosed Diseases Program, Office of the Director, National Institutes of Health, Bethesda, MD 20892, United States of America
| | - May C Malicdan
- Medical Genetics Branch, National Human Genome Research Institute, Bethesda, MD 20892, United States of America; Undiagnosed Diseases Program, Office of the Director, National Institutes of Health, Bethesda, MD 20892, United States of America
| | - Cynthia J Tifft
- Medical Genetics Branch, National Human Genome Research Institute, Bethesda, MD 20892, United States of America; Undiagnosed Diseases Program, Office of the Director, National Institutes of Health, Bethesda, MD 20892, United States of America
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9
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Laróvere LE, Fairbanks LD, Jinnah HA, Guelbert NB, Escuredo E, Becerra A, Kremer RDD. Lesch-Nyhan Disease and Its Variants: Phenotypic and Mutation Spectrum of Hypoxanthine-Guanine Phosphoribosyltransferase Deficiency in Argentine Patients. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2021. [DOI: 10.1590/2326-4594-jiems-2020-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Laura E. Laróvere
- Universidad Nacional de Córdoba, Argentina; Consejo de Investigaciones Científicas y Tecnológicas, Argentina
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10
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Saint-Marc C, Ceschin J, Almyre C, Pinson B, Daignan-Fornier B. Genetic investigation of purine nucleotide imbalance in Saccharomyces cerevisiae. Curr Genet 2020; 66:1163-1177. [PMID: 32780163 DOI: 10.1007/s00294-020-01101-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/21/2020] [Accepted: 08/06/2020] [Indexed: 11/28/2022]
Abstract
Because metabolism is a complex balanced process involving multiple enzymes, understanding how organisms compensate for transient or permanent metabolic imbalance is a challenging task that can be more easily achieved in simpler unicellular organisms. The metabolic balance results not only from the combination of individual enzymatic properties, regulation of enzyme abundance, but also from the architecture of the metabolic network offering multiple interconversion alternatives. Although metabolic networks are generally highly resilient to perturbations, metabolic imbalance resulting from enzymatic defect and specific environmental conditions can be designed experimentally and studied. Starting with a double amd1 aah1 mutant that severely and conditionally affects yeast growth, we carefully characterized the metabolic shuffle associated with this defect. We established that the GTP decrease resulting in an adenylic/guanylic nucleotide imbalance was responsible for the growth defect. Identification of several gene dosage suppressors revealed that TAT1, encoding an amino acid transporter, is a robust suppressor of the amd1 aah1 growth defect. We show that TAT1 suppression occurs through replenishment of the GTP pool in a process requiring the histidine biosynthesis pathway. Importantly, we establish that a tat1 mutant exhibits synthetic sickness when combined with an amd1 mutant and that both components of this synthetic phenotype can be suppressed by specific gene dosage suppressors. Together our data point to a strong phenotypic connection between amino acid uptake and GTP synthesis, a connection that could open perspectives for future treatment of related human defects, previously reported as etiologically highly conserved.
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Affiliation(s)
- Christelle Saint-Marc
- IBGC, UMR 5095, Université de Bordeaux, Bordeaux, France.,Centre National de la Recherche Scientifique IBGC, UMR 5095, Bordeaux, France
| | - Johanna Ceschin
- IBGC, UMR 5095, Université de Bordeaux, Bordeaux, France.,Centre National de la Recherche Scientifique IBGC, UMR 5095, Bordeaux, France
| | - Claire Almyre
- IBGC, UMR 5095, Université de Bordeaux, Bordeaux, France.,Centre National de la Recherche Scientifique IBGC, UMR 5095, Bordeaux, France
| | - Benoît Pinson
- IBGC, UMR 5095, Université de Bordeaux, Bordeaux, France.,Centre National de la Recherche Scientifique IBGC, UMR 5095, Bordeaux, France
| | - Bertrand Daignan-Fornier
- IBGC, UMR 5095, Université de Bordeaux, Bordeaux, France. .,Centre National de la Recherche Scientifique IBGC, UMR 5095, Bordeaux, France.
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11
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Physiological levels of folic acid reveal purine alterations in Lesch-Nyhan disease. Proc Natl Acad Sci U S A 2020; 117:12071-12079. [PMID: 32430324 DOI: 10.1073/pnas.2003475117] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Lesch-Nyhan disease (LND), caused by a deficient salvage purine pathway, is characterized by severe neurological manifestations and uric acid overproduction. However, uric acid is not responsible for brain dysfunction, and it has been suggested that purine nucleotide depletion, or accumulation of other toxic purine intermediates, could be more relevant. Here we show that purine alterations in LND fibroblasts depend on the level of folic acid in the culture media. Thus, physiological levels of folic acid induce accumulation of 5-aminoimidazole-4-carboxamide riboside 5'-monophosphate (ZMP), an intermediary of de novo purine biosynthetic pathway, and depletion of ATP. Additionally, Z-nucleotide derivatives (AICAr, AICA) are detected at high levels in the urine of patients with LND and its variants (hypoxanthine-guanine phosphoribosyltransferase [HGprt]-related neurological dysfunction and HGprt-related hyperuricemia), and the ratio of AICAr/AICA is significantly increased in patients with neurological problems (LND and HGprt-related neurological dysfunction). Moreover, AICAr is present in the cerebrospinal fluid of patients with LND, but not in control individuals. We hypothesize that purine alterations detected in LND fibroblasts may also occur in the brain of patients with LND.
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12
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Febuxostat, a Xanthine Oxidoreductase Inhibitor, Decreases NLRP3-dependent Inflammation in Macrophages by Activating the Purine Salvage Pathway and Restoring Cellular Bioenergetics. Sci Rep 2019; 9:17314. [PMID: 31754153 PMCID: PMC6872548 DOI: 10.1038/s41598-019-53965-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 11/07/2019] [Indexed: 02/07/2023] Open
Abstract
The nucleotide-binding oligomerization domain-like receptor family, pyrin domain-containing 3 (NLRP3) inflammasome mediates caspase-1 activation and IL-1β processing and is implicated in autoinflammatory as well as other chronic inflammatory diseases. Recent studies have demonstrated that xanthine oxidoreductase (XOR) inhibition attenuated IL-1β secretion in activated macrophages, but the detailed mechanism of inhibition remains unclear. In this study, we report that febuxostat, an inhibitor of XOR, suppressed NLRP3 inflammasome-mediated IL-1β secretion and cell death by two mechanisms: in a mitochondrial ROS (mitoROS)-dependent and mitoROS-independent manner. MitoROS-independent effects of febuxostat were mediated by an increase of intracellular ATP and improved mitochondrial energetics via the activation of purine salvage pathway. Our findings suggest that cellular bioenergetics are important in regulating NLRP3 activation, and XOR inhibition may be clinically relevant in NLRP3-related inflammatory diseases.
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13
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Madeo A, Di Rocco M, Brassier A, Bahi-Buisson N, De Lonlay P, Ceballos-Picot I. Clinical, biochemical and genetic characteristics of a cohort of 101 French and Italian patients with HPRT deficiency. Mol Genet Metab 2019; 127:147-157. [PMID: 31182398 DOI: 10.1016/j.ymgme.2019.06.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/31/2019] [Accepted: 06/01/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND HPRT deficiency is a rare disorder of purine metabolism whose natural history is not fully understood. No optimal management recommendations exist. The objective of the present study is to characterize a large cohort of patients with HPRT deficiency, comparing Lesch-Nyhan Disease (LND) and its attenuated variants, with the purpose of helping clinicians in disease management and prognostic definition. METHODS Genetic and clinical features of French and Italian patients with a confirmed diagnosis of HPRT deficiency were collected. RESULTS A hundred and one patients were studied, including 66 LND, 22 HND (HPRT-related Neurological Dysfunction) and 13 HRH (HPRT-Related Hyperuricemia) patients. The clinical manifestations at onset were not specific, but associated with an orange coloration of diapers in 22% of patients. The overall neurological involvement was more severe in LND than in HND patients. Behavioural disturbances were not limited to self-injuries and were not exclusive of LND. Median age of involuntary movements and self-injuries appearance in LND was 1.0 and 3 years, respectively. Renal manifestations (66.3% of patients) occurred at any age with a median onset age of 1.1 years, while gout (25.7% of patients) appeared later in disease course (median onset age 18 years) and was more frequent in attenuated variants than in LND. HPRT activity and genotype showed a significant correlation with the severity of the neurological disease. On the contrary, there were no significant differences in the development of nephropathy or gout. For the treatment of neurological aspects, botulinum toxin injections, oral or intrathecal baclofen and gabapentin were partially efficacious and well tolerated, while deep brain stimulation was associated to a worsening of patients' condition. CONCLUSIONS The present study improves the knowledge of the natural history of HPRT deficiency and could represent a starting point for the development of future management guidelines.
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Affiliation(s)
- Annalisa Madeo
- Department of Pediatrics, Unit of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genoa, Italy.
| | - Maja Di Rocco
- Department of Pediatrics, Unit of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Anaïs Brassier
- Reference Centre of Inherited Metabolic Diseases, Hospital Necker Enfants Malades, APHP, Imagine, University Paris Descartes, INEM, INSERM 1151, Filière G2M, MetabERN, Paris, France
| | - Nadia Bahi-Buisson
- Pediatric Neurology, Hospital Necker Enfants Malades, APHP, University Paris Descartes, Paris, France
| | - Pascale De Lonlay
- Reference Centre of Inherited Metabolic Diseases, Hospital Necker Enfants Malades, APHP, Imagine, University Paris Descartes, INEM, INSERM 1151, Filière G2M, MetabERN, Paris, France
| | - Irène Ceballos-Picot
- Metabolic Biochemistry Laboratory, Hospital Necker Enfants Malades, APHP, University Paris Descartes, Paris, France
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14
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Marsac R, Pinson B, Saint-Marc C, Olmedo M, Artal-Sanz M, Daignan-Fornier B, Gomes JE. Purine Homeostasis Is Necessary for Developmental Timing, Germline Maintenance and Muscle Integrity in Caenorhabditis elegans. Genetics 2019; 211:1297-1313. [PMID: 30700528 PMCID: PMC6456310 DOI: 10.1534/genetics.118.301062] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 01/24/2019] [Indexed: 12/12/2022] Open
Abstract
Purine homeostasis is ensured through a metabolic network widely conserved from prokaryotes to humans. Purines can either be synthesized de novo, reused, or produced by interconversion of extant metabolites using the so-called recycling pathway. Although thoroughly characterized in microorganisms, such as yeast or bacteria, little is known about regulation of the purine biosynthesis network in metazoans. In humans, several diseases are linked to purine metabolism through as yet poorly understood etiologies. Particularly, the deficiency in adenylosuccinate lyase (ADSL)-an enzyme involved both in the purine de novo and recycling pathways-causes severe muscular and neuronal symptoms. In order to address the mechanisms underlying this deficiency, we established Caenorhabditis elegans as a metazoan model organism to study purine metabolism, while focusing on ADSL. We show that the purine biosynthesis network is functionally conserved in C. elegans Moreover, adsl-1 (the gene encoding ADSL in C. elegans) is required for developmental timing, germline stem cell maintenance and muscle integrity. Importantly, these traits are not affected when solely the de novo pathway is abolished, and we present evidence that germline maintenance is linked specifically to ADSL activity in the recycling pathway. Hence, our results allow developmental and tissue specific phenotypes to be ascribed to separable steps of the purine metabolic network in an animal model.
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Affiliation(s)
- Roxane Marsac
- Institut de Biochimie et Génétique Cellulaires, Université de Bordeaux and CNRS UMR5095, 33077 Bordeaux cedex, France
| | - Benoît Pinson
- Institut de Biochimie et Génétique Cellulaires, Université de Bordeaux and CNRS UMR5095, 33077 Bordeaux cedex, France
| | - Christelle Saint-Marc
- Institut de Biochimie et Génétique Cellulaires, Université de Bordeaux and CNRS UMR5095, 33077 Bordeaux cedex, France
| | - María Olmedo
- Andalusian Center for Developmental Biology, Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide, Department of Molecular Biology and Biochemical Engineering, 41013 Seville, Spain
| | - Marta Artal-Sanz
- Andalusian Center for Developmental Biology, Consejo Superior de Investigaciones Científicas/Junta de Andalucía/Universidad Pablo de Olavide, Department of Molecular Biology and Biochemical Engineering, 41013 Seville, Spain
| | - Bertrand Daignan-Fornier
- Institut de Biochimie et Génétique Cellulaires, Université de Bordeaux and CNRS UMR5095, 33077 Bordeaux cedex, France
| | - José-Eduardo Gomes
- Institut de Biochimie et Génétique Cellulaires, Université de Bordeaux and CNRS UMR5095, 33077 Bordeaux cedex, France
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15
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Pinson B, Ceschin J, Saint-Marc C, Daignan-Fornier B. Dual control of NAD + synthesis by purine metabolites in yeast. eLife 2019; 8:43808. [PMID: 30860478 PMCID: PMC6430606 DOI: 10.7554/elife.43808] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/11/2019] [Indexed: 12/13/2022] Open
Abstract
Metabolism is a highly integrated process resulting in energy and biomass production. While individual metabolic routes are well characterized, the mechanisms ensuring crosstalk between pathways are poorly described, although they are crucial for homeostasis. Here, we establish a co-regulation of purine and pyridine metabolism in response to external adenine through two separable mechanisms. First, adenine depletion promotes transcriptional upregulation of the de novo NAD+ biosynthesis genes by a mechanism requiring the key-purine intermediates ZMP/SZMP and the Bas1/Pho2 transcription factors. Second, adenine supplementation favors the pyridine salvage route resulting in an ATP-dependent increase of intracellular NAD+. This control operates at the level of the nicotinic acid mononucleotide adenylyl-transferase Nma1 and can be bypassed by overexpressing this enzyme. Therefore, in yeast, pyridine metabolism is under the dual control of ZMP/SZMP and ATP, revealing a much wider regulatory role for these intermediate metabolites in an integrated biosynthesis network.
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Affiliation(s)
- Benoît Pinson
- IBGCUniversité de Bordeaux UMR 5095BordeauxFrance
- Centre National de la Recherche Scientifique IBGC UMR 5095BordeauxFrance
| | - Johanna Ceschin
- IBGCUniversité de Bordeaux UMR 5095BordeauxFrance
- Centre National de la Recherche Scientifique IBGC UMR 5095BordeauxFrance
| | - Christelle Saint-Marc
- IBGCUniversité de Bordeaux UMR 5095BordeauxFrance
- Centre National de la Recherche Scientifique IBGC UMR 5095BordeauxFrance
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16
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Daignan-Fornier B, Pinson B. Yeast to Study Human Purine Metabolism Diseases. Cells 2019; 8:cells8010067. [PMID: 30658520 PMCID: PMC6356901 DOI: 10.3390/cells8010067] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/15/2019] [Accepted: 01/15/2019] [Indexed: 02/04/2023] Open
Abstract
Purine nucleotides are involved in a multitude of cellular processes, and the dysfunction of purine metabolism has drastic physiological and pathological consequences. Accordingly, several genetic disorders associated with defective purine metabolism have been reported. The etiology of these diseases is poorly understood and simple model organisms, such as yeast, have proved valuable to provide a more comprehensive view of the metabolic consequences caused by the identified mutations. In this review, we present results obtained with the yeast Saccharomyces cerevisiae to exemplify how a eukaryotic unicellular organism can offer highly relevant information for identifying the molecular basis of complex human diseases. Overall, purine metabolism illustrates a remarkable conservation of genes, functions and phenotypes between humans and yeast.
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Affiliation(s)
- Bertrand Daignan-Fornier
- Université de Bordeaux IBGC UMR 5095 1, rue Camille Saint-Saëns, F-33077 Bordeaux, France.
- Centre National de la Recherche Scientifique IBGC UMR 5095 1, rue Camille Saint-Saëns, F-33077 Bordeaux, France.
| | - Benoît Pinson
- Université de Bordeaux IBGC UMR 5095 1, rue Camille Saint-Saëns, F-33077 Bordeaux, France.
- Centre National de la Recherche Scientifique IBGC UMR 5095 1, rue Camille Saint-Saëns, F-33077 Bordeaux, France.
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17
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Douillet DC, Pinson B, Ceschin J, Hürlimann HC, Saint-Marc C, Laporte D, Claverol S, Konrad M, Bonneu M, Daignan-Fornier B. Metabolomics and proteomics identify the toxic form and the associated cellular binding targets of the anti-proliferative drug AICAR. J Biol Chem 2018; 294:805-815. [PMID: 30478173 DOI: 10.1074/jbc.ra118.004964] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/09/2018] [Indexed: 12/14/2022] Open
Abstract
5-Aminoimidazole-4-carboxamide 1-β-d-ribofuranoside (AICAR, or acadesine) is a precursor of the monophosphate derivative 5-amino-4-imidazole carboxamide ribonucleoside 5'-phosphate (ZMP), an intermediate in de novo purine biosynthesis. AICAR proved to have promising anti-proliferative properties, although the molecular basis of its toxicity is poorly understood. To exert cytotoxicity, AICAR needs to be metabolized, but the AICAR-derived toxic metabolite was not identified. Here, we show that ZMP is the major toxic derivative of AICAR in yeast and establish that its metabolization to succinyl-ZMP, ZDP, or ZTP (di- and triphosphate derivatives of AICAR) strongly reduced its toxicity. Affinity chromatography identified 74 ZMP-binding proteins, including 41 that were found neither as AMP nor as AICAR or succinyl-ZMP binders. Overexpression of karyopherin-β Kap123, one of the ZMP-specific binders, partially rescued AICAR toxicity. Quantitative proteomic analyses revealed 57 proteins significantly less abundant on nuclei-enriched fractions from AICAR-fed cells, this effect being compensated by overexpression of KAP123 for 15 of them. These results reveal nuclear protein trafficking as a function affected by AICAR.
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Affiliation(s)
- Delphine C Douillet
- From the Université de Bordeaux, IBGC UMR 5095, F-33077 Bordeaux, France.,the Centre National de la Recherche Scientifique, IBGC UMR 5095, F-33077 Bordeaux, France
| | - Benoît Pinson
- From the Université de Bordeaux, IBGC UMR 5095, F-33077 Bordeaux, France.,the Centre National de la Recherche Scientifique, IBGC UMR 5095, F-33077 Bordeaux, France
| | - Johanna Ceschin
- From the Université de Bordeaux, IBGC UMR 5095, F-33077 Bordeaux, France.,the Centre National de la Recherche Scientifique, IBGC UMR 5095, F-33077 Bordeaux, France
| | - Hans C Hürlimann
- From the Université de Bordeaux, IBGC UMR 5095, F-33077 Bordeaux, France.,the Centre National de la Recherche Scientifique, IBGC UMR 5095, F-33077 Bordeaux, France
| | - Christelle Saint-Marc
- From the Université de Bordeaux, IBGC UMR 5095, F-33077 Bordeaux, France.,the Centre National de la Recherche Scientifique, IBGC UMR 5095, F-33077 Bordeaux, France
| | - Damien Laporte
- From the Université de Bordeaux, IBGC UMR 5095, F-33077 Bordeaux, France.,the Centre National de la Recherche Scientifique, IBGC UMR 5095, F-33077 Bordeaux, France
| | - Stéphane Claverol
- the University of Bordeaux, Bordeaux INP, Plateforme Proteome, F-33076 Bordeaux, France, and
| | - Manfred Konrad
- the Max-Planck-Institute for Biophysical Chemistry, D-37077 Goettingen, Germany
| | - Marc Bonneu
- the University of Bordeaux, Bordeaux INP, Plateforme Proteome, F-33076 Bordeaux, France, and
| | - Bertrand Daignan-Fornier
- From the Université de Bordeaux, IBGC UMR 5095, F-33077 Bordeaux, France, .,the Centre National de la Recherche Scientifique, IBGC UMR 5095, F-33077 Bordeaux, France
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18
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Albrecht D, Hürlimann HC, Ceschin J, Saint-Marc C, Pinson B, Daignan-Fornier B. Multiple chemo-genetic interactions between a toxic metabolite and the ubiquitin pathway in yeast. Curr Genet 2018; 64:1275-1286. [PMID: 29721631 DOI: 10.1007/s00294-018-0843-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/17/2018] [Accepted: 04/26/2018] [Indexed: 12/21/2022]
Abstract
AICAR is the precursor of ZMP, a metabolite with antiproliferative properties in yeast and human. We aim at understanding how AICAR (and its active form ZMP) affects essential cellular processes. In this work, we found that ZMP accumulation is synthetic lethal with a hypomorphic allele of the ubiquitin-activating enzyme Uba1. A search for gene-dosage suppressors revealed that ubiquitin overexpression was sufficient to restore growth of the uba1 mutant upon AICAR treatment, suggesting that the ubiquitin pool is critical for cells to cope with AICAR. Accordingly, two mutants with constitutive low ubiquitin, ubp6 and doa1, were highly sensitive to AICAR, a phenotype that could be suppressed by ubiquitin overexpression. We established, by genetic means, that these new AICAR-sensitive mutants act in a different pathway from the rad6/bre1 mutants which were previously reported as sensitive to AICAR (Albrecht et al., Genetics 204:1447-1460, 2016). Two ubiquitin-conjugating enzymes (Ubc4 and Cdc34) and a ubiquitin ligase (Cdc4) were found to contribute to the ability of cells to cope with ZMP. This study illustrates the complexity of chemo-genetic interactions and shows how genetic analyses allow deciphering the implicated pathways, the individual gene effects, and their combined phenotypic contribution. Based on additivity and suppression patterns, we conclude that AICAR treatment shows synthetic interactions with distinct branches of the yeast ubiquitin pathway.
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Affiliation(s)
- Delphine Albrecht
- Université de Bordeaux, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
- Centre National de la Recherche Scientifique, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
| | - Hans C Hürlimann
- Université de Bordeaux, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
- Centre National de la Recherche Scientifique, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
- Institut für Biologie, Martin-Luther Universität, Universität Halle-Wittenberg, Weinbergweg 10, 06120, Halle (Saale), Germany
| | - Johanna Ceschin
- Université de Bordeaux, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
- Centre National de la Recherche Scientifique, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
| | - Christelle Saint-Marc
- Université de Bordeaux, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
- Centre National de la Recherche Scientifique, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
| | - Benoît Pinson
- Université de Bordeaux, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
- Centre National de la Recherche Scientifique, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France
| | - Bertrand Daignan-Fornier
- Université de Bordeaux, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France.
- Centre National de la Recherche Scientifique, IBGC UMR 5095, 1 rue Camille Saint-Saëns, 33077, Bordeaux, France.
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, 1 rue C. Saint-Saëns CS 61390, 33077, Bordeaux, France.
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19
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Torres RJ, Puig JG. Aicar effect in early neuronal development. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2018; 37:261-272. [PMID: 29634397 DOI: 10.1080/15257770.2018.1453073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
The neurological manifestations of Lesch-Nyhan disease (LND) have been attributed to the effect of hypoxanthine-guanine phosphoribosyltransferase (HPRT) deficiency on nervous system development. An increase has been reported in the levels of 5-aminoimidazole-4-carboxamide-1-β-D-ribotide (AICAR) and its triphosphate form ZTP in the red blood cells of patients with LND. AICAR accumulation in the brain has been hypothesized as the cause of some of the neurological symptoms of patients with LND. In this study, we examined the effect of AICAR on the differentiation of neurons in the well-established human NTERA-2 cl.D1 (NT2/D1) embryonic carcinoma neurogenesis model. NT2/D1 cells were differentiated along neuroectodermal lineages after exposure to 10-µM retinoic acid (RA), with or without the addition of 25-µM AICAR to the culture medium. The effect of AICAR on RA differentiation were examined through changes in the expression of genes essential to neuronal differentiation, as well as genes from the Wnt/β-catenin, transforming growth factor beta (TGFβ) and sonic hedgehog (SHH) pathways. Results: RA-induced differentiation in the NT2/D1 cells significantly increased the expression of MAP2, NRG1, NRP1, NRP2, NEUROG1 and EN1 genes (genes linked to neural differentiation) compared with undifferentiated NT2/D1 cells. We found that AICAR increased the expression of the SHH gene and the WNT2 and WNT7B genes but did not influence the expression of genes whose overexpression characterize early neurodevelopmental processes. Conclusion: The relevance of the AICAR related changes in the SHH and Wnt/β-catenin pathway genes expression in the physiopathology of LND warrants further exploration.
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Affiliation(s)
- Rosa J Torres
- a Department of Biochemistry , La Paz University Hospital , IdiPaz , Madrid , Spain and Center for Biomedical Network Research on Rare Diseases (CIBERER) , ISCIII , Spain
| | - Juan G Puig
- b Department of Internal Medicine, Metabolic-Vascular Unit , La Paz University Hospital , IdiPaz , Madrid , Spain
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20
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Huyet J, Ozeir M, Burgevin MC, Pinson B, Chesney F, Remy JM, Siddiqi AR, Lupoli R, Pinon G, Saint-Marc C, Gibert JF, Morales R, Ceballos-Picot I, Barouki R, Daignan-Fornier B, Olivier-Bandini A, Augé F, Nioche P. Structural Insights into the Forward and Reverse Enzymatic Reactions in Human Adenine Phosphoribosyltransferase. Cell Chem Biol 2018; 25:666-676.e4. [PMID: 29576532 DOI: 10.1016/j.chembiol.2018.02.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 01/05/2018] [Accepted: 02/22/2018] [Indexed: 10/17/2022]
Abstract
Phosphoribosyltransferases catalyze the displacement of a PRPP α-1'-pyrophosphate to a nitrogen-containing nucleobase. How they control the balance of substrates/products binding and activities is poorly understood. Here, we investigated the human adenine phosphoribosyltransferase (hAPRT) that produces AMP in the purine salvage pathway. We show that a single oxygen atom from the Tyr105 side chain is responsible for selecting the active conformation of the 12 amino acid long catalytic loop. Using in vitro, cellular, and in crystallo approaches, we demonstrated that Tyr105 is key for the fine-tuning of the kinetic activity efficiencies of the forward and reverse reactions. Together, our results reveal an evolutionary pressure on the strictly conserved Tyr105 and on the dynamic motion of the flexible loop in phosphoribosyltransferases that is essential for purine biosynthesis in cells. These data also provide the framework for designing novel adenine derivatives that could modulate, through hAPRT, diseases-involved cellular pathways.
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Affiliation(s)
- Jessica Huyet
- Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Fondamentales et Biomédicales, UMR-S 1124, Centre Interdisciplinaire Chimie Biologie-Paris, 45, rue des Saints Pères, Paris 75006, France; INSERM, UMR-S 1124, Paris 75006, France
| | - Mohammad Ozeir
- Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Fondamentales et Biomédicales, UMR-S 1124, Centre Interdisciplinaire Chimie Biologie-Paris, 45, rue des Saints Pères, Paris 75006, France; INSERM, UMR-S 1124, Paris 75006, France
| | | | - Benoît Pinson
- Université de Bordeaux, Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Bordeaux Cedex 33077, France
| | - Françoise Chesney
- Sanofi R&D, Translational Science Unit, Chilly-Mazarin 91385, France
| | - Jean-Marc Remy
- Sanofi R&D, Translational Science Unit, Chilly-Mazarin 91385, France
| | - Abdul Rauf Siddiqi
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Roland Lupoli
- Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Fondamentales et Biomédicales, UMR-S 1124, Centre Interdisciplinaire Chimie Biologie-Paris, 45, rue des Saints Pères, Paris 75006, France; INSERM, UMR-S 1124, Paris 75006, France; Université Paris Descartes, Structural and Molecular Analysis Platform, Paris 75006, France
| | - Gregory Pinon
- Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Fondamentales et Biomédicales, UMR-S 1124, Centre Interdisciplinaire Chimie Biologie-Paris, 45, rue des Saints Pères, Paris 75006, France; INSERM, UMR-S 1124, Paris 75006, France; Université Paris Descartes, Structural and Molecular Analysis Platform, Paris 75006, France
| | - Christelle Saint-Marc
- Université de Bordeaux, Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Bordeaux Cedex 33077, France
| | | | - Renaud Morales
- Sanofi R&D, Translational Science Unit, Chilly-Mazarin 91385, France
| | - Irène Ceballos-Picot
- Laboratoire de Biochimie Métabolomique et Protéomique, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine Paris Descartes, Paris 75015, France
| | - Robert Barouki
- Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Fondamentales et Biomédicales, UMR-S 1124, Centre Interdisciplinaire Chimie Biologie-Paris, 45, rue des Saints Pères, Paris 75006, France; INSERM, UMR-S 1124, Paris 75006, France; Laboratoire de Biochimie Métabolomique et Protéomique, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine Paris Descartes, Paris 75015, France
| | - Bertrand Daignan-Fornier
- Université de Bordeaux, Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Bordeaux Cedex 33077, France
| | | | - Franck Augé
- Sanofi R&D, Translational Science Unit, Chilly-Mazarin 91385, France.
| | - Pierre Nioche
- Université Paris Descartes, Sorbonne Paris Cité, UFR des Sciences Fondamentales et Biomédicales, UMR-S 1124, Centre Interdisciplinaire Chimie Biologie-Paris, 45, rue des Saints Pères, Paris 75006, France; INSERM, UMR-S 1124, Paris 75006, France; Université Paris Descartes, Structural and Molecular Analysis Platform, Paris 75006, France.
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21
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Fisch GS. Whither the genotype-phenotype relationship? An historical and methodological appraisal. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2017; 175:343-353. [DOI: 10.1002/ajmg.c.31571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 06/21/2017] [Accepted: 06/28/2017] [Indexed: 01/25/2023]
Affiliation(s)
- Gene S. Fisch
- CUNY/Baruch College; Paul Chook Department of Information Systems & Statistics; New York New York
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Tschirner SK, Bähre H, Kaever A, Schneider EH, Seifert R, Kaever V. Non-targeted metabolomics by high resolution mass spectrometry in HPRT knockout mice. Life Sci 2016; 156:68-73. [PMID: 27221022 DOI: 10.1016/j.lfs.2016.05.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/07/2016] [Accepted: 05/20/2016] [Indexed: 12/31/2022]
Abstract
AIMS Lesch-Nyhan disease (LND) is characterized by hyperuricemia as well as neurological and neuropsychiatric symptoms including repetitive self-injurious behavior. Symptoms are caused by a deficiency of the enzyme hypoxanthine-guanine phosphoribosyltransferase (HPRT) as a result of a mutation on the X chromosome. To elucidate the pathophysiology of LND, we performed a metabolite screening for brain and serum extracts from HPRT knockout mice as an animal model for LND. MAIN METHODS Analyses were performed by high performance liquid chromatography (HPLC)-coupled quadrupole time-of-flight mass spectrometry (QTOF-MS). KEY FINDINGS In brain extracts, we found six metabolites with significantly different contents in wild-type and HPRT-deficient mice. Two compounds we could identify as 5-aminoimidazole-4-carboxamide ribotide (AICAR) and 1-methylimidazole-4-acetic acid (1-MI4AA). Whereas AICAR was accumulated in brains of HPRT knockout mice, 1-MI4AA was decreased in these mice. SIGNIFICANCE Both metabolites play a role in histidine metabolism and, as a consequence, histamine metabolism. AICAR, in addition, is part of the purine metabolism. Our findings may help to better understand the mechanisms leading to the behavioral phenotype of LND.
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Affiliation(s)
- Sarah K Tschirner
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Heike Bähre
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany; Research Core Unit Metabolomics, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Alexander Kaever
- Department of Bioinformatics, Institute of Microbiology and Genetics, Georg-August-University Göttingen, Goldschmidtstr. 1, D-37077 Göttingen, Germany.
| | - Erich H Schneider
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Roland Seifert
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
| | - Volkhard Kaever
- Institute of Pharmacology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany; Research Core Unit Metabolomics, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.
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Ceschin J, Hürlimann HC, Saint-Marc C, Albrecht D, Violo T, Moenner M, Daignan-Fornier B, Pinson B. Disruption of Nucleotide Homeostasis by the Antiproliferative Drug 5-Aminoimidazole-4-carboxamide-1-β-d-ribofuranoside Monophosphate (AICAR). J Biol Chem 2015; 290:23947-59. [PMID: 26283791 DOI: 10.1074/jbc.m115.656017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Indexed: 11/06/2022] Open
Abstract
5-Aminoimidazole-4-carboxamide-1-β-D-ribofuranoside monophosphate (AICAR) is a natural metabolite with potent anti-proliferative and low energy mimetic properties. At high concentration, AICAR is toxic for yeast and mammalian cells, but the molecular basis of this toxicity is poorly understood. Here, we report the identification of yeast purine salvage pathway mutants that are synthetically lethal with AICAR accumulation. Genetic suppression revealed that this synthetic lethality is in part due to low expression of adenine phosphoribosyl transferase under high AICAR conditions. In addition, metabolite profiling points to the AICAR/NTP balance as crucial for optimal utilization of glucose as a carbon source. Indeed, we found that AICAR toxicity in yeast and human cells is alleviated when glucose is replaced by an alternative carbon source. Together, our metabolic analyses unveil the AICAR/NTP balance as a major factor of AICAR antiproliferative effects.
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Affiliation(s)
- Johanna Ceschin
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
| | - Hans Caspar Hürlimann
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
| | - Christelle Saint-Marc
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
| | - Delphine Albrecht
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
| | - Typhaine Violo
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
| | - Michel Moenner
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
| | - Bertrand Daignan-Fornier
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
| | - Benoît Pinson
- From the Université de Bordeaux and the Centre National de la Recherche Scientifique, Institut de Biochimie et Génétique Cellulaires UMR 5095, Saint-Saëns, F-33077 Bordeaux, France
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Guibinga GH. MicroRNAs: tools of mechanistic insights and biological therapeutics discovery for the rare neurogenetic syndrome Lesch-Nyhan disease (LND). ADVANCES IN GENETICS 2015; 90:103-131. [PMID: 26296934 DOI: 10.1016/bs.adgen.2015.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
MicroRNAs (miRNAs) are small regulatory RNAs that modulate the translation of mRNA. They have emerged over the past few years as indispensable entities in the transcriptional regulation of genes. Their discovery has added additional layers of complexity to regulatory networks that control cellular homeostasis. Also, their dysregulated pattern of expression is now well demonstrated in myriad diseases and pathogenic processes. In the current review, we highlight the role of miRNAs in Lesch-Nyhan disease (LND), a rare neurogenetic syndrome caused by mutations in the purine metabolic gene encoding the hypoxanthine-guanine phosphoribosyltransferase (HPRT) enzyme. We describe how experimental and biocomputational approaches have helped to unravel genetic and signaling pathways that provide mechanistic understanding of some of the molecular and cellular basis of this ill-defined neurogenetic disorder. Through miRNA-based target predictions, we have identified signaling pathways that may be of significance in guiding biological therapeutic discovery for this incurable neurological disorder. We also propose a model to explain how a gene such as HPRT, mostly known for its housekeeping metabolic functions, can have pleiotropic effects on disparate genes and signal transduction pathways. Our hypothetical model suggests that HPRT mRNA transcripts may be acting as competitive endogenous RNAs (ceRNAs) intertwined in multiregulatory cross talk between key neural transcripts and miRNAs. Overall, this approach of using miRNA-based genomic approaches to elucidate the molecular and cellular basis of LND and guide biological target identification might be applicable to other ill-defined rare inborn-error metabolic diseases.
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Affiliation(s)
- Ghiabe-Henri Guibinga
- Division of Genetics, Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, CA, USA.
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