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Akinyele O, Munir A, Johnson MA, Perez MS, Gao Y, Foley JR, Nwafor A, Wu Y, Murray-Stewart T, Casero RA, Bayir H, Kemaladewi DU. Impaired polyamine metabolism causes behavioral and neuroanatomical defects in a mouse model of Snyder-Robinson syndrome. Dis Model Mech 2024; 17:dmm050639. [PMID: 38463005 PMCID: PMC11103582 DOI: 10.1242/dmm.050639] [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: 11/30/2023] [Accepted: 02/28/2024] [Indexed: 03/12/2024] Open
Abstract
Snyder-Robinson syndrome (SRS) is a rare X-linked recessive disorder caused by a mutation in the SMS gene, which encodes spermine synthase, and aberrant polyamine metabolism. SRS is characterized by intellectual disability, thin habitus, seizure, low muscle tone/hypotonia and osteoporosis. Progress towards understanding and treating SRS requires a model that recapitulates human gene variants and disease presentations. Here, we evaluated molecular and neurological presentations in the G56S mouse model, which carries a missense mutation in the Sms gene. The lack of SMS protein in the G56S mice resulted in increased spermidine/spermine ratio, failure to thrive, short stature and reduced bone density. They showed impaired learning capacity, increased anxiety, reduced mobility and heightened fear responses, accompanied by reduced total and regional brain volumes. Furthermore, impaired mitochondrial oxidative phosphorylation was evident in G56S cerebral cortex, G56S fibroblasts and Sms-null hippocampal cells, indicating that SMS may serve as a future therapeutic target. Collectively, our study establishes the suitability of the G56S mice as a preclinical model for SRS and provides a set of molecular and functional outcome measures that can be used to evaluate therapeutic interventions for SRS.
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Affiliation(s)
- Oluwaseun Akinyele
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Anushe Munir
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Marie A. Johnson
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Megan S. Perez
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Yuan Gao
- Children's Neuroscience Institute, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Jackson R. Foley
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD 21224, USA
| | - Ashley Nwafor
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD 21224, USA
| | - Yijen Wu
- Department of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Tracy Murray-Stewart
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD 21224, USA
| | - Robert A. Casero
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD 21224, USA
| | - Hülya Bayir
- Children's Neuroscience Institute, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Dwi U. Kemaladewi
- Division of Genetic and Genomic Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261, USA
- Children's Neuroscience Institute, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
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2
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Bachmann AS, VanSickle EA, Michael J, Vipond M, Bupp CP. Bachmann-Bupp syndrome and treatment. Dev Med Child Neurol 2024; 66:445-455. [PMID: 37469105 PMCID: PMC10796844 DOI: 10.1111/dmcn.15687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 07/21/2023]
Abstract
Bachmann-Bupp syndrome (BABS) is a neurodevelopmental disorder characterized by developmental delay, hypotonia, and varying forms of non-congenital alopecia. The condition is caused by 3'-end mutations of the ornithine decarboxylase 1 (ODC1) gene, which produce carboxy (C)-terminally truncated variants of ODC, a pyridoxal 5'-phosphate-dependent enzyme. C-terminal truncation of ODC prevents its ubiquitin-independent proteasomal degradation and leads to cellular accumulation of ODC enzyme that remains catalytically active. ODC is the first rate-limiting enzyme that converts ornithine to putrescine in the polyamine pathway. Polyamines (putrescine, spermidine, spermine) are aliphatic molecules found in all forms of life and are important during embryogenesis, organogenesis, and tumorigenesis. BABS is an ultra-rare condition with few reported cases, but it serves as a convincing example for drug repurposing therapy. α-Difluoromethylornithine (DFMO, also known as eflornithine) is an ODC inhibitor with a strong safety profile in pediatric use for neuroblastoma and other cancers as well as West African sleeping sickness (trypanosomiasis). Patients with BABS have been treated with DFMO and have shown improvement in hair growth, muscle tone, and development.
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Affiliation(s)
- André S Bachmann
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI, USA
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
| | - Elizabeth A VanSickle
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
| | - Julianne Michael
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
| | - Marlie Vipond
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
| | - Caleb P Bupp
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI, USA
- International Center for Polyamine Disorders, Grand Rapids, MI, USA
- Corewell Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
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3
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Cressman A, Morales D, Zhang Z, Le B, Foley J, Murray-Stewart T, Genetos DC, Fierro FA. Effects of Spermine Synthase Deficiency in Mesenchymal Stromal Cells Are Rescued by Upstream Inhibition of Ornithine Decarboxylase. Int J Mol Sci 2024; 25:2463. [PMID: 38473716 PMCID: PMC10931026 DOI: 10.3390/ijms25052463] [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: 01/18/2024] [Revised: 02/13/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024] Open
Abstract
Despite the well-known relevance of polyamines to many forms of life, little is known about how polyamines regulate osteogenesis and skeletal homeostasis. Here, we report a series of in vitro studies conducted with human-bone-marrow-derived pluripotent stromal cells (MSCs). First, we show that during osteogenic differentiation, mRNA levels of most polyamine-associated enzymes are relatively constant, except for the catabolic enzyme spermidine/spermine N1-acetyltransferase 1 (SAT1), which is strongly increased at both mRNA and protein levels. As a result, the intracellular spermidine to spermine ratio is significantly reduced during the early stages of osteoblastogenesis. Supplementation of cells with exogenous spermidine or spermine decreases matrix mineralization in a dose-dependent manner. Employing N-cyclohexyl-1,3-propanediamine (CDAP) to chemically inhibit spermine synthase (SMS), the enzyme catalyzing conversion of spermidine into spermine, also suppresses mineralization. Intriguingly, this reduced mineralization is rescued with DFMO, an inhibitor of the upstream polyamine enzyme ornithine decarboxylase (ODC1). Similarly, high concentrations of CDAP cause cytoplasmic vacuolization and alter mitochondrial function, which are also reversible with the addition of DFMO. Altogether, these studies suggest that excess polyamines, especially spermidine, negatively affect hydroxyapatite synthesis of primary MSCs, whereas inhibition of polyamine synthesis with DFMO rescues most, but not all of these defects. These findings are relevant for patients with Snyder-Robinson syndrome (SRS), as the presenting skeletal defects-associated with SMS deficiency-could potentially be ameliorated by treatment with DFMO.
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Affiliation(s)
- Amin Cressman
- Institute for Regenerative Cures, University of California Davis, Sacramento, CA 95817, USA; (A.C.); (D.M.); (Z.Z.); (B.L.)
| | - David Morales
- Institute for Regenerative Cures, University of California Davis, Sacramento, CA 95817, USA; (A.C.); (D.M.); (Z.Z.); (B.L.)
| | - Zhenyang Zhang
- Institute for Regenerative Cures, University of California Davis, Sacramento, CA 95817, USA; (A.C.); (D.M.); (Z.Z.); (B.L.)
| | - Bryan Le
- Institute for Regenerative Cures, University of California Davis, Sacramento, CA 95817, USA; (A.C.); (D.M.); (Z.Z.); (B.L.)
| | - Jackson Foley
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD 21287, USA; (J.F.); (T.M.-S.)
| | - Tracy Murray-Stewart
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD 21287, USA; (J.F.); (T.M.-S.)
| | - Damian C. Genetos
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, CA 95616, USA;
| | - Fernando A. Fierro
- Institute for Regenerative Cures, University of California Davis, Sacramento, CA 95817, USA; (A.C.); (D.M.); (Z.Z.); (B.L.)
- Department of Cell Biology and Human Anatomy, University of California Davis, Sacramento, CA 95817, USA
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4
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Wolpaw AJ, Dang CV. Pathways Involved in the Effect of Eflornithine in Neuroblastoma. J Clin Oncol 2024; 42:116-119. [PMID: 37883720 DOI: 10.1200/jco.23.01783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 10/28/2023] Open
Affiliation(s)
- Adam J Wolpaw
- Children's Hospital of Philadelphia and Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia, PA
| | - Chi V Dang
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University, Baltimore, MD
- Ludwig Institute for Cancer Research, New York, NY
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Miyajima R, Manaka H, Honda T, Hashii N, Suzuki M, Komeno M, Takao K, Ishii-Watabe A, Igarashi K, Toida T, Higashi K. Intracellular polyamine depletion induces N-linked galactosylation of the monoclonal antibody produced by CHO DP-12 cells. J Biotechnol 2023; 378:1-10. [PMID: 37922995 DOI: 10.1016/j.jbiotec.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 10/20/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023]
Abstract
The heterogeneity of the N-linked glycan profile of therapeutic monoclonal antibodies (mAbs) derived from animal cells affects therapeutic efficacy and, therefore, needs to be appropriately controlled during the manufacturing process. In this study, we examined the effects of polyamines on the N-linked glycan profiles of mAbs produced by CHO DP-12 cells. Normal cell growth of CHO DP-12 cells and their growth arrest by α-difluoromethylornithine (DFMO), an inhibitor of the polyamine biosynthetic pathway, was observed when 0.5% fetal bovine serum was added to serum-free medium, despite the presence of cadaverine and aminopropylcadaverine, instead of putrescine and spermidine in cells. Polyamine depletion by DFMO increased IgG galactosylation, accompanied by β1,4-galactosyl transferase 1 (B4GAT1) mRNA elevation. Additionally, IgG production in polyamine-depleted cells was reduced by 30% compared to that in control cells. Therefore, we examined whether polyamine depletion induces an ER stress response. The results indicated increased expression levels of chaperones for glycoprotein folding in polyamine-depleted cells, suggesting that polyamine depletion causes ER stress related to glycoprotein folding. The effect of tunicamycin, an ER stress inducer that inhibits N-glycosylation, on the expression of B4GALT1 mRNA was examined. Tunicamycin treatment increased B4GALT1 mRNA expression. These results suggest that ER stress caused by polyamine depletion induces B4GALT1 mRNA expression, resulting in increased IgG galactosylation in CHO cells. Thus, introducing polyamines, particularly SPD, to serum-free CHO culture medium for CHO cells may contribute to consistent manufacturing and quality control of antibody production.
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Affiliation(s)
- Rin Miyajima
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Hitomi Manaka
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Tatsuya Honda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Noritaka Hashii
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Masato Suzuki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Masahiro Komeno
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Koichi Takao
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Saitama 350-0295, Japan
| | - Akiko Ishii-Watabe
- Division of Biological Chemistry and Biologicals, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Kazuei Igarashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan; Amine Pharma Research Institute, Innovation Plaza at Chiba University, 1-8-15 Inohana, Chuo-ku, Chiba 260-0856, Japan
| | - Toshihiko Toida
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kyohei Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
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Schultz CR, Sheldon RD, Xie H, Demireva EY, Uhl KL, Agnew DW, Geerts D, Bachmann AS. New K50R mutant mouse models reveal impaired hypusination of eif5a2 with alterations in cell metabolite landscape. Biol Open 2023; 12:290754. [PMID: 36848144 PMCID: PMC10084858 DOI: 10.1242/bio.059647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 02/21/2023] [Indexed: 03/01/2023] Open
Abstract
The eukaryotic translation initiation factor 5A1 (eIF5A1) and 5A2 (eIF5A2) are important proteins in a variety of physiological and pathophysiological processes and their function has been linked to neurodevelopmental disorders, cancer, and viral infections. Here, we report two new genome-edited mouse models, generated using a CRISPR-Cas9 approach, in which the amino acid residue lysine 50 is replaced with arginine 50 (K50R) in eIF5A1 or in the closely related eIF5A2 protein. This mutation prevents the spermidine-dependent post-translational formation of hypusine, a unique lysine derivative that is necessary for activation of eIF5A1 and eIF5A2. Mouse brain lysates from homozygous eif5a2-K50R mutant mice (eif5a2K50R/K50R) confirmed the absence of hypusine formation of eIF5A2, and metabolomic analysis of primary mouse dermal fibroblasts revealed significant alterations in the metabolite landscape compared to controls including increased levels of tryptophan, kyrunenine, pyridoxine, nicotinamide adenine dinucleotide, riboflavin, flavin adenine dinucleotide, pantothenate, and coenzyme A. Further supported by new publicly available bioinformatics data, these new mouse models represent excellent in vivo models to study hypusine-dependent biological processes, hypusination-related disorders caused by eIF5A1 and eIF5A2 gene aberrations or mRNA expression dysregulation, as well as several major human cancer types and potential therapies.
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Affiliation(s)
- Chad R Schultz
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, USA
| | - Ryan D Sheldon
- Core Technologies and Services, Mass Spectrometry Core, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Huirong Xie
- Transgenic and Genome Editing Facility, Institute for Quantitative Health Science and Engineering, Research Technology Support Facility, Michigan State University, East Lansing, MI 48824, USA
| | - Elena Y Demireva
- Transgenic and Genome Editing Facility, Institute for Quantitative Health Science and Engineering, Research Technology Support Facility, Michigan State University, East Lansing, MI 48824, USA
| | - Katie L Uhl
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, USA
| | - Dalen W Agnew
- Department of Pathobiology & Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Dirk Geerts
- Department of Hematology, Amsterdam University Medical Center, Location VUMC, 1081 HV Amsterdam, The Netherlands
| | - André S Bachmann
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, USA
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7
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Motsinger LA, Okamoto LL, Ineck NE, Udy BA, Erickson CL, Harraq Y, Reichhardt CC, Murdoch GK, Thornton KJ. Understanding the Effects of Trenbolone Acetate, Polyamine Precursors, and Polyamines on Proliferation, Protein Synthesis Rates, and the Abundance of Genes Involved in Myoblast Growth, Polyamine Biosynthesis, and Protein Synthesis in Murine Myoblasts. BIOLOGY 2023; 12:biology12030446. [PMID: 36979138 PMCID: PMC10045634 DOI: 10.3390/biology12030446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/08/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023]
Abstract
Research suggests that androgens increase skeletal muscle growth by modulating polyamine biosynthesis. As such, the objective of this study was to investigate effects of anabolic hormones, polyamine precursors, and polyamines relative to proliferation, protein synthesis, and the abundance of mRNA involved in polyamine biosynthesis, proliferation, and protein synthesis in C2C12 and Sol8 cells. Cultures were treated with anabolic hormones (trenbolone acetate and/or estradiol), polyamine precursors (methionine or ornithine), or polyamines (putrescine, spermidine, or spermine). Messenger RNA was isolated 0.5 or 1, 12, or 24 h post-treatment. The cell type had no effect (p > 0.10) on proliferation, protein synthesis, or mRNA abundance at any time point. Each treatment increased (p < 0.01) proliferation, and anabolic hormones increased (p = 0.04) protein synthesis. Polyamines increased (p < 0.05) the abundance of mRNA involved in polyamine biosynthesis, proliferation, and protein synthesis. Treatment with polyamine precursors decreased (p < 0.05) the abundance of mRNA involved in proliferation and protein synthesis. Overall, C2C12 and Sol8 myoblasts do not differ (p > 0.10) in proliferation, protein synthesis, or mRNA abundance at the time points assessed. Furthermore, anabolic hormones, polyamines, and polyamine precursors increase proliferation and protein synthesis, and polyamines and their precursors alter the abundance of mRNA involved in growth.
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Affiliation(s)
- Laura A. Motsinger
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Lillian L. Okamoto
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Nikole E. Ineck
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Brynne A. Udy
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Christopher L. Erickson
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Youssef Harraq
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Caleb C. Reichhardt
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
| | - Gordon K. Murdoch
- Department of Animal Sciences, Washington State University, Pullman, WA 99163, USA
| | - Kara Jean Thornton
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322, USA
- Correspondence: ; Tel.: +435-797-7696; Fax: +435-797-2118
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8
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Akinyele O, Munir A, Johnson MA, Perez MS, Gao Y, Foley JR, Wu Y, Murray-Stewart T, Casero RA, Bayir H, Kemaladewi DU. Impaired polyamine metabolism causes behavioral and neuroanatomical defects in a novel mouse model of Snyder-Robinson Syndrome. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.15.524155. [PMID: 36711956 PMCID: PMC9882240 DOI: 10.1101/2023.01.15.524155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Polyamines (putrescine, spermidine, and spermine) are essential molecules for normal cellular functions and are subject to strict metabolic regulation. Mutations in the gene encoding spermine synthase (SMS) lead to accumulation of spermidine in an X-linked recessive disorder known as Snyder-Robinson syndrome (SRS). Presently, no treatments exist for this rare disease that manifests with a spectrum of symptoms including intellectual disability, developmental delay, thin habitus, and low muscle tone. The development of therapeutic interventions for SRS will require a suitable disease-specific animal model that recapitulates many of the abnormalities observed in patients. Here, we characterize the molecular, behavioral, and neuroanatomical features of a mouse model with a missense mutation in Sms gene that results in a glycine-to-serine substitution at position 56 (G56S) of the SMS protein. Mice harboring this mutation exhibit a complete loss of SMS protein and elevated spermidine/spermine ratio in skeletal muscles and the brain. In addition, the G56S mice demonstrate increased anxiety, impaired learning, and decreased explorative behavior in fear conditioning, Morris water maze, and open field tests, respectively. Furthermore, these mice failed to gain weight over time and exhibit abnormalities in brain structure and bone density. Transcriptomic analysis of the cerebral cortex revealed downregulation of genes associated with mitochondrial oxidative phosphorylation and ribosomal protein synthesis. Our findings also revealed impaired mitochondrial bioenergetics in fibroblasts isolated from the G56S mice, indicating a correlation between these processes in the affected mice. Collectively, our findings establish the first in-depth characterization of an SRS preclinical mouse model that identifies cellular processes that could be targeted for future therapeutic development.
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Affiliation(s)
- Oluwaseun Akinyele
- Div. of Genetic and Genomic Medicine, Dept. of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - Anushe Munir
- Div. of Genetic and Genomic Medicine, Dept. of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, USA
- Dept. of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, USA
| | - Marie A. Johnson
- Div. of Genetic and Genomic Medicine, Dept. of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - Megan S. Perez
- Div. of Genetic and Genomic Medicine, Dept. of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, USA
- Dept. of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, USA
| | - Yuan Gao
- Children’s Neuroscience Institute, Dept. of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - Jackson R. Foley
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Yijen Wu
- Dept. of Developmental Biology, University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - Tracy Murray-Stewart
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Robert A. Casero
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Hulya Bayir
- Children’s Neuroscience Institute, Dept. of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, USA
| | - Dwi U. Kemaladewi
- Div. of Genetic and Genomic Medicine, Dept. of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, USA
- Dept. of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, USA
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9
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Understanding the Polyamine and mTOR Pathway Interaction in Breast Cancer Cell Growth. MEDICAL SCIENCES (BASEL, SWITZERLAND) 2022; 10:medsci10030051. [PMID: 36135836 PMCID: PMC9504347 DOI: 10.3390/medsci10030051] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/01/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022]
Abstract
The polyamines putrescine, spermidine and spermine are nutrient-like polycationic molecules involved in metabolic processes and signaling pathways linked to cell growth and cancer. One important pathway is the PI3K/Akt pathway where studies have shown that polyamines mediate downstream growth effects. Downstream of PI3K/Akt is the mTOR signaling pathway, a nutrient-sensing pathway that regulate translation initiation through 4EBP1 and p70S6K phosphorylation and, along with the PI3K/Akt, is frequently dysregulated in breast cancer. In this study, we investigated the effect of intracellular polyamine modulation on mTORC1 downstream protein and general translation state in two breast cancer cell lines, MCF-7 and MDA-MB-231. The effect of mTORC1 pathway inhibition on the growth and intracellular polyamines was also measured. Results showed that polyamine modulation alters 4EBP1 and p70S6K phosphorylation and translation initiation in the breast cancer cells. mTOR siRNA gene knockdown also inhibited cell growth and decreased putrescine and spermidine content. Co-treatment of inhibitors of polyamine biosynthesis and mTORC1 pathway induced greater cytotoxicity and translation inhibition in the breast cancer cells. Taken together, these data suggest that polyamines promote cell growth in part through interaction with mTOR pathway. Similarly intracellular polyamine content appears to be linked to mTOR pathway regulation. Finally, dual inhibition of polyamine and mTOR pathways may provide therapeutic benefits in some breast cancers.
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10
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Seoane R, Llamas-González YY, Vidal S, El Motiam A, Bouzaher YH, Fonseca D, Farrás R, García-Sastre A, González-Santamaría J, Rivas C. eIF5A is activated by virus infection or dsRNA and facilitates virus replication through modulation of interferon production. Front Cell Infect Microbiol 2022; 12:960138. [PMID: 35967877 PMCID: PMC9363599 DOI: 10.3389/fcimb.2022.960138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/04/2022] [Indexed: 11/13/2022] Open
Abstract
Active hypusine-modified initiation elongation factor 5A is critical for cell proliferation and differentiation, embryonic development, and innate immune response of macrophages to bacterial infection. Here, we demonstrate that both virus infection and double-stranded RNA viral mimic stimulation induce the hypusination of eIF5A. Furthermore, we show that activation of eIF5A is essential for the replication of several RNA viruses including influenza A virus, vesicular stomatitis virus, chikungunya virus, mayaro virus, una virus, zika virus, and punta toro virus. Finally, our data reveal that inhibition of eIF5A hypusination using the spermidine analog GC7 or siRNA-mediated downmodulation of eIF5A1 induce upregulation of endoplasmic reticulum stress marker proteins and trigger the transcriptional induction of interferon and interferon-stimulated genes, mechanisms that may explain the broad-spectrum antiviral activity of eIF5A inhibition.
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Affiliation(s)
- Rocío Seoane
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias (IDIS), Santiago de Compostela, Spain
| | - Yessica Y. Llamas-González
- Grupo de Biología Celular y Molecular de Arbovirus, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panamá, Panama
- Programa de Doctorado en Ciencias Biológicas, Universidad de la República, Montevideo, Uruguay
| | - Santiago Vidal
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias (IDIS), Santiago de Compostela, Spain
| | - Ahmed El Motiam
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias (IDIS), Santiago de Compostela, Spain
| | - Yanis Hichem Bouzaher
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias (IDIS), Santiago de Compostela, Spain
| | - Danae Fonseca
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Rosa Farrás
- Oncogenic Signalling Laboratory, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - José González-Santamaría
- Grupo de Biología Celular y Molecular de Arbovirus, Instituto Conmemorativo Gorgas de Estudios de la Salud, Panamá, Panama
| | - Carmen Rivas
- Centro de Investigación en Medicina Molecular y Enfermedades Crónicas (CIMUS), Universidade de Santiago de Compostela, Instituto de Investigaciones Sanitarias (IDIS), Santiago de Compostela, Spain
- Cellular and Molecular Biology, Centro Nacional de Biotecnología (CNB)-CSIC, Madrid, Spain
- *Correspondence: Carmen Rivas,
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11
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Polyamines and Their Metabolism: From the Maintenance of Physiological Homeostasis to the Mediation of Disease. MEDICAL SCIENCES (BASEL, SWITZERLAND) 2022; 10:medsci10030038. [PMID: 35893120 PMCID: PMC9326668 DOI: 10.3390/medsci10030038] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 12/13/2022]
Abstract
The polyamines spermidine and spermine are positively charged aliphatic molecules. They are critical in the regulation of nucleic acid and protein structures, protein synthesis, protein and nucleic acid interactions, oxidative balance, and cell proliferation. Cellular polyamine levels are tightly controlled through their import, export, de novo synthesis, and catabolism. Enzymes and enzymatic cascades involved in polyamine metabolism have been well characterized. This knowledge has been used for the development of novel compounds for research and medical applications. Furthermore, studies have shown that disturbances in polyamine levels and their metabolic pathways, as a result of spontaneous mutations in patients, genetic engineering in mice or experimentally induced injuries in rodents, are associated with multiple maladaptive changes. The adverse effects of altered polyamine metabolism have also been demonstrated in in vitro models. These observations highlight the important role these molecules and their metabolism play in the maintenance of physiological normalcy and the mediation of injury. This review will attempt to cover the extensive and diverse knowledge of the biological role of polyamines and their metabolism in the maintenance of physiological homeostasis and the mediation of tissue injury.
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12
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Zhang N, Zhou S, Zhang Z, Li W, Peng Y, Zheng J. Evidence for adduction of biologic amines with reactive metabolite of 8-epidiosbulbin E acetate in vitro and in vivo. Toxicol Lett 2022; 365:1-10. [PMID: 35680040 DOI: 10.1016/j.toxlet.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/24/2022] [Accepted: 05/24/2022] [Indexed: 11/18/2022]
Abstract
Dioscorea bulbifera L. (DBL) is one of traditional Chinese medicines and has been used for the treatment of goiter, tumor and carbuncles. However, clinic application of the herbal medicine has been limited, due to reported severe hepatotoxicity. 8-Epidiosbulbin E acetate (EEA), one of the major components of DBL, can cause severe liver damage. The furan ring of EEA is metabolized by CYP3A4 to a cis-enedial reactive intermediate prone to react amino and/or thiol groups of amino acid residues. In this study, we investigated the interaction of the reactive intermediate with biologic amines. EEA-derived biologic amine adducts, including spermidine, spermine, putrescine, ornithine, lysine and glutamine were detected in cultured mouse primary hepatocytes treated with EEA. Only spermidine adduct was observed in bile of mice given EEA. The detection of the adducts was established by labeling with bromobenzyl mercaptan and LC-MS/MS analysis. Exposure of EEA resulted in concentration dependent cytotoxicity in hepatocytes. Pretreatment with spermidine attenuated the susceptibility of cells to the cytotoxicity of EEA, because of the compensation of the depleted spermidine.
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Affiliation(s)
- Na Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Shenzhi Zhou
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Zhengyu Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Wei Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Ying Peng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
| | - Jiang Zheng
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China; State Key Laboratory of Functions and Applications of Medicinal Plants, Key Laboratory of Pharmaceutics of Guizhou Province, Guizhou Medical University, Guiyang, Guizhou 550025, PR China.
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13
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Kulkarni A, Anderson CM, Mirmira RG, Tersey SA. Role of Polyamines and Hypusine in β Cells and Diabetes Pathogenesis. Metabolites 2022; 12:344. [PMID: 35448531 PMCID: PMC9028953 DOI: 10.3390/metabo12040344] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023] Open
Abstract
The polyamines-putrescine, spermidine, and spermine-are polycationic, low molecular weight amines with cellular functions primarily related to mRNA translation and cell proliferation. Polyamines partly exert their effects via the hypusine pathway, wherein the polyamine spermidine provides the aminobutyl moiety to allow posttranslational modification of the translation factor eIF5A with the rare amino acid hypusine (hydroxy putrescine lysine). The "hypusinated" eIF5A (eIF5Ahyp) is considered to be the active form of the translation factor necessary for the translation of mRNAs associated with stress and inflammation. Recently, it has been demonstrated that activity of the polyamines-hypusine circuit in insulin-producing islet β cells contributes to diabetes pathogenesis under conditions of inflammation. Elevated levels of polyamines are reported in both exocrine and endocrine cells of the pancreas, which may contribute to endoplasmic reticulum stress, oxidative stress, inflammatory response, and autophagy. In this review, we have summarized the existing research on polyamine-hypusine metabolism in the context of β-cell function and diabetes pathogenesis.
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Affiliation(s)
| | | | | | - Sarah A. Tersey
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA; (A.K.); (C.M.A.); (R.G.M.)
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14
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Gladilina YA, Bey L, Hilal A, Neborak EV, Blinova VG, Zhdanov DD. Cytoprotective Activity of Polyamines Is Associated with the Alternative Splicing of RAD51A Pre-mRNA in Normal Human CD4 + T Lymphocytes. Int J Mol Sci 2022; 23:1863. [PMID: 35163785 PMCID: PMC8837172 DOI: 10.3390/ijms23031863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/03/2022] [Accepted: 02/05/2022] [Indexed: 02/04/2023] Open
Abstract
Physiological polyamines are ubiquitous polycations with pleiotropic biochemical activities, including regulation of gene expression and cell proliferation as well as modulation of cell signaling. They can also decrease DNA damage and promote cell survival. In the present study, we demonstrated that polyamines have cytoprotective effects on normal human CD4+ T lymphocytes but not on cancer Jurkat or K562 cells. Pretreatment of lymphocytes with polyamines resulted in a significant reduction in cells with DNA damage induced by doxorubicin, cisplatin, or irinotecan, leading to an increase in cell survival and viability. The induction of RAD51A expression was in response to DNA damage in both cancer and normal cells. However, in normal cells, putrescin pretreatment resulted in alternative splicing of RAD51A and the switch of the predominant expression from the splice variant with the deletion of exon 4 to the full-length variant. Induction of RAD51A alternative splicing by splice-switching oligonucleotides resulted in a decrease in DNA damage and cell protection against cisplatin-induced apoptosis. The results of this study suggest that the cytoprotective activity of polyamines is associated with the alternative splicing of RAD51A pre-mRNA in normal human CD4+ T lymphocytes. The difference in the sensitivity of normal and cancer cells to polyamines may become the basis for the use of these compounds to protect normal lymphocytes during lymphoblastic chemotherapy.
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Affiliation(s)
- Yulia A. Gladilina
- Institute of Biomedical Chemistry, Pogodinskaya St. 10/8, 119121 Moscow, Russia; (Y.A.G.); (A.H.); (V.G.B.)
| | - Lylia Bey
- Department of Biochemistry, Peoples’ Friendship University of Russia (RUDN University), Miklukho—Maklaya St. 6, 117198 Moscow, Russia; (L.B.); (E.V.N.)
| | - Abdullah Hilal
- Institute of Biomedical Chemistry, Pogodinskaya St. 10/8, 119121 Moscow, Russia; (Y.A.G.); (A.H.); (V.G.B.)
| | - Ekaterina V. Neborak
- Department of Biochemistry, Peoples’ Friendship University of Russia (RUDN University), Miklukho—Maklaya St. 6, 117198 Moscow, Russia; (L.B.); (E.V.N.)
| | - Varvara G. Blinova
- Institute of Biomedical Chemistry, Pogodinskaya St. 10/8, 119121 Moscow, Russia; (Y.A.G.); (A.H.); (V.G.B.)
| | - Dmitry D. Zhdanov
- Institute of Biomedical Chemistry, Pogodinskaya St. 10/8, 119121 Moscow, Russia; (Y.A.G.); (A.H.); (V.G.B.)
- Department of Biochemistry, Peoples’ Friendship University of Russia (RUDN University), Miklukho—Maklaya St. 6, 117198 Moscow, Russia; (L.B.); (E.V.N.)
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15
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Banerji R, Iyer P, Saroj SD. Spermidine enhances the survival of Streptococcus pyogenes M3 under oxidative stress. Mol Oral Microbiol 2022; 37:53-62. [PMID: 34994090 DOI: 10.1111/omi.12360] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/23/2021] [Accepted: 12/30/2021] [Indexed: 12/17/2022]
Abstract
Streptococcus pyogenes, a host-restricted gram-positive pathogen during infection, initially adheres to the epithelia of the nasopharynx and respiratory tract of the human host, followed by disseminating to other organs and evading the host immune system. Upon phagocytosis, S. pyogenes encounters oxidative stress inside the macrophages. The role of polyamines in regulating various physiological functions including stress resistance in bacteria has been reported widely. Since S. pyogenes lacks the machinery for the biosynthesis of polyamines, the study aimed to understand the role of extracellular polyamines in the survival of S. pyogenes under oxidative stress environments. S. pyogenes being a catalase-negative organism, we report that its survival within the macrophages and H2 O2 is enhanced by the presence of spermidine. The increased survival can be attributed to the upregulation of oxidative stress response genes such as sodM, npx, and mtsABC. In addition, spermidine influences the upregulation of virulence factors such as sagA, slo, and hasA. Also, spermidine leads to a decrease in hydrophobicity of the cell membrane and an increase in hyaluronic acid. This study suggests a role for extracellular spermidine in the survival of S. pyogenes under oxidative stress environments. Recognizing the factors that modulate S. pyogenes survival and virulence under stress will assist in understanding its interactions with the host.
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Affiliation(s)
- Rajashri Banerji
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, Maharashtra, India
| | - Parvati Iyer
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, Maharashtra, India
| | - Sunil D Saroj
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, Maharashtra, India
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16
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Tabibzadeh S. Resolving Geroplasticity to the Balance of Rejuvenins and Geriatrins. Aging Dis 2022; 13:1664-1714. [DOI: 10.14336/ad.2022.0414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 04/14/2022] [Indexed: 11/18/2022] Open
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17
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Park J, Kim CH. Regulation of common neurological disorders by gut microbial metabolites. Exp Mol Med 2021; 53:1821-1833. [PMID: 34857900 PMCID: PMC8741890 DOI: 10.1038/s12276-021-00703-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 09/06/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022] Open
Abstract
The gut is connected to the CNS by immunological mediators, lymphocytes, neurotransmitters, microbes and microbial metabolites. A mounting body of evidence indicates that the microbiome exerts significant effects on immune cells and CNS cells. These effects frequently result in the suppression or exacerbation of inflammatory responses, the latter of which can lead to severe tissue damage, altered synapse formation and disrupted maintenance of the CNS. Herein, we review recent progress in research on the microbial regulation of CNS diseases with a focus on major gut microbial metabolites, such as short-chain fatty acids, tryptophan metabolites, and secondary bile acids. Pathological changes in the CNS are associated with dysbiosis and altered levels of microbial metabolites, which can further exacerbate various neurological disorders. The cellular and molecular mechanisms by which these gut microbial metabolites regulate inflammatory diseases in the CNS are discussed. We highlight the similarities and differences in the impact on four major CNS diseases, i.e., multiple sclerosis, Parkinson's disease, Alzheimer's disease, and autism spectrum disorder, to identify common cellular and molecular networks governing the regulation of cellular constituents and pathogenesis in the CNS by microbial metabolites.
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Affiliation(s)
- Jeongho Park
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon, 24341, Republic of Korea
| | - Chang H Kim
- Department of Pathology, University of Michigan School of Medicine, Ann Arbor, MI, 48109, USA.
- Mary H. Weiser Food Allergy Center, Center for Gastrointestinal Research, and Rogel Center for Cancer Research, University of Michigan School of Medicine, Ann Arbor, MI, 48109, USA.
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18
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Anderson-Baucum E, Piñeros AR, Kulkarni A, Webb-Robertson BJ, Maier B, Anderson RM, Wu W, Tersey SA, Mastracci TL, Casimiro I, Scheuner D, Metz TO, Nakayasu ES, Evans-Molina C, Mirmira RG. Deoxyhypusine synthase promotes a pro-inflammatory macrophage phenotype. Cell Metab 2021; 33:1883-1893.e7. [PMID: 34496231 PMCID: PMC8432737 DOI: 10.1016/j.cmet.2021.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/01/2021] [Accepted: 08/05/2021] [Indexed: 12/24/2022]
Abstract
The metabolic inflammation (meta-inflammation) of obesity is characterized by proinflammatory macrophage infiltration into adipose tissue. Catalysis by deoxyhypusine synthase (DHPS) modifies the translation factor eIF5A to generate a hypusine (Hyp) residue. Hypusinated eIF5A (eIF5AHyp) controls the translation of mRNAs involved in inflammation, but its role in meta-inflammation has not been elucidated. Levels of eIF5AHyp were found to be increased in adipose tissue macrophages from obese mice and in murine macrophages activated to a proinflammatory M1-like state. Global proteomics and transcriptomics revealed that DHPS deficiency in macrophages altered the abundance of proteins involved in NF-κB signaling, likely through translational control of their respective mRNAs. DHPS deficiency in myeloid cells of obese mice suppressed M1 macrophage accumulation in adipose tissue and improved glucose tolerance. These findings indicate that DHPS promotes the post-transcriptional regulation of a subset of mRNAs governing inflammation and chemotaxis in macrophages and contributes to a proinflammatory M1-like phenotype.
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Affiliation(s)
- Emily Anderson-Baucum
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Annie R Piñeros
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Abhishek Kulkarni
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | | | - Bernhard Maier
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Ryan M Anderson
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Wenting Wu
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Sarah A Tersey
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Teresa L Mastracci
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, USA
| | - Isabel Casimiro
- Department of Medicine, The University of Chicago, Chicago, IL 60637, USA
| | - Donalyn Scheuner
- Indiana Biosciences Research Institute, Indianapolis, IN 46202, USA
| | - Thomas O Metz
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Ernesto S Nakayasu
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Carmella Evans-Molina
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Roudebush VA Medical Center, Indianapolis, IN 46202, USA.
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19
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Mahmood S, Younas H, Younus A, Nathenial S. A narrative review on the role of folate-mediated one-carbon metabolism and its associated gene polymorphisms in posing risk to preeclampsia. Clin Exp Hypertens 2021; 43:487-504. [PMID: 34053381 DOI: 10.1080/10641963.2021.1916942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Preeclampsia (PE) presents a major obstetrical problem for mother and fetus which is characterized by the onset of hypertension and proteinuria in formerly normotensive women. Altered folate-mediated one-carbon metabolism is one of the factors for PE development either due to nutritional insufficiencies such as folate deficiency or polymorphisms in genes that code for the key enzymes of the cycle. Commonly, there are four genes in the cycle whose polymorphisms have been described in relation to PE. These factors could cause elevation of homocysteine; the toxic metabolite, which subsequently leads to the development of PE. Sufficient levels of folate have been considered important during pregnancy and may reduce the risk of development of PE. This review aims at discussing genetic polymorphisms and nutritional deficiencies as probable predisposing factors and suggests considering fetal genotypes, varied ethnicities, and interaction of various other factors involved to render better conclusiveness to the present studies.
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Affiliation(s)
- Sadia Mahmood
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Hooria Younas
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Amna Younus
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Sammar Nathenial
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
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20
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Allmeroth K, Kim CS, Annibal A, Pouikli A, Koester J, Derisbourg MJ, Andrés Chacón-Martínez C, Latza C, Antebi A, Tessarz P, Wickström SA, Denzel MS. N1-acetylspermidine is a determinant of hair follicle stem cell fate. J Cell Sci 2021; 134:261953. [PMID: 33973637 PMCID: PMC8182411 DOI: 10.1242/jcs.252767] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 03/20/2021] [Indexed: 12/17/2022] Open
Abstract
Stem cell differentiation is accompanied by increased mRNA translation. The rate of protein biosynthesis is influenced by the polyamines putrescine, spermidine and spermine, which are essential for cell growth and stem cell maintenance. However, the role of polyamines as endogenous effectors of stem cell fate and whether they act through translational control remains obscure. Here, we investigate the function of polyamines in stem cell fate decisions using hair follicle stem cell (HFSC) organoids. Compared to progenitor cells, HFSCs showed lower translation rates, correlating with reduced polyamine levels. Surprisingly, overall polyamine depletion decreased translation but did not affect cell fate. In contrast, specific depletion of natural polyamines mediated by spermidine/spermine N1-acetyltransferase (SSAT; also known as SAT1) activation did not reduce translation but enhanced stemness. These results suggest a translation-independent role of polyamines in cell fate regulation. Indeed, we identified N1-acetylspermidine as a determinant of cell fate that acted through increasing self-renewal, and observed elevated N1-acetylspermidine levels upon depilation-mediated HFSC proliferation and differentiation in vivo. Overall, this study delineates the diverse routes of polyamine metabolism-mediated regulation of stem cell fate decisions. This article has an associated First Person interview with the first author of the paper. Summary: Reduced protein synthesis is required for stem cell functions. Here, we delineate a complex interplay of polyamines and mRNA translation that determines hair follicle stem cell fate decisions.
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Affiliation(s)
- Kira Allmeroth
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany
| | - Christine S Kim
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany
| | - Andrea Annibal
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany
| | - Andromachi Pouikli
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany
| | - Janis Koester
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany.,CECAD - Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Str. 26, D-50931 Cologne, Germany
| | - Maxime J Derisbourg
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany
| | | | - Christian Latza
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany
| | - Adam Antebi
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany.,CECAD - Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Str. 26, D-50931 Cologne, Germany
| | - Peter Tessarz
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany.,CECAD - Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Str. 26, D-50931 Cologne, Germany
| | - Sara A Wickström
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany.,CECAD - Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Str. 26, D-50931 Cologne, Germany.,Helsinki Institute for Life Science, Biomedicum Helsinki, Haartmaninkatu 8, FI-00290 Helsinki, Finland.,Wihuri Research Institute, Biomedicum Helsinki, Haartmaninkatu 8, FI-00290 Helsinki, Finland.,Stem Cells and Metabolism Research Program, Faculty of Medicine, Biomedicum Helsinki, Haartmaninkatu 8, FI-00290 Helsinki, Finland
| | - Martin S Denzel
- Max Planck Institute for Biology of Ageing, Joseph-Stelzmann-Str. 9b, D-50931 Cologne, Germany.,CECAD - Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Str. 26, D-50931 Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC), University of Cologne, Robert-Koch-Str. 21, D-50931 Cologne, Germany
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21
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Coni S, Serrao SM, Yurtsever ZN, Di Magno L, Bordone R, Bertani C, Licursi V, Ianniello Z, Infante P, Moretti M, Petroni M, Guerrieri F, Fatica A, Macone A, De Smaele E, Di Marcotullio L, Giannini G, Maroder M, Agostinelli E, Canettieri G. Blockade of EIF5A hypusination limits colorectal cancer growth by inhibiting MYC elongation. Cell Death Dis 2020; 11:1045. [PMID: 33303756 PMCID: PMC7729396 DOI: 10.1038/s41419-020-03174-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/11/2022]
Abstract
Eukaryotic Translation Initiation Factor 5A (EIF5A) is a translation factor regulated by hypusination, a unique posttranslational modification catalyzed by deoxyhypusine synthetase (DHPS) and deoxyhypusine hydroxylase (DOHH) starting from the polyamine spermidine. Emerging data are showing that hypusinated EIF5A regulates key cellular processes such as autophagy, senescence, polyamine homeostasis, energy metabolism, and plays a role in cancer. However, the effects of EIF5A inhibition in preclinical cancer models, the mechanism of action, and specific translational targets are still poorly understood. We show here that hypusinated EIF5A promotes growth of colorectal cancer (CRC) cells by directly regulating MYC biosynthesis at specific pausing motifs. Inhibition of EIF5A hypusination with the DHPS inhibitor GC7 or through lentiviral-mediated knockdown of DHPS or EIF5A reduces the growth of various CRC cells. Multiplex gene expression analysis reveals that inhibition of hypusination impairs the expression of transcripts regulated by MYC, suggesting the involvement of this oncogene in the observed effect. Indeed, we demonstrate that EIF5A regulates MYC elongation without affecting its mRNA content or protein stability, by alleviating ribosome stalling at five distinct pausing motifs in MYC CDS. Of note, we show that blockade of the hypusination axis elicits a remarkable growth inhibitory effect in preclinical models of CRC and significantly reduces the size of polyps in APCMin/+ mice, a model of human familial adenomatous polyposis (FAP). Together, these data illustrate an unprecedented mechanism, whereby the tumor-promoting properties of hypusinated EIF5A are linked to its ability to regulate MYC elongation and provide a rationale for the use of DHPS/EIF5A inhibitors in CRC therapy.
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Affiliation(s)
- Sonia Coni
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Silvia Maria Serrao
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Zuleyha Nihan Yurtsever
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Laura Di Magno
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Rosa Bordone
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Camilla Bertani
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Valerio Licursi
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Zaira Ianniello
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Paola Infante
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161, Rome, Italy
| | - Marta Moretti
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Marialaura Petroni
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Francesca Guerrieri
- Cancer Research Center of Lyon (CRCL), UMR Inserm U1052/CNRS 5286, Lyon, France
| | - Alessandro Fatica
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Alberto Macone
- Department of Biochemical Sciences "A. Rossi Fanelli", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Enrico De Smaele
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Lucia Di Marcotullio
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
- Istituto Pasteur, Fondazione Cenci-Bolognetti, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Giuseppe Giannini
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Marella Maroder
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy
| | - Enzo Agostinelli
- International Polyamines Foundation-ONLUS, Via del Forte Tiburtino 98, 00159, Rome, Italy
- Department of Sense Organs, Sapienza University of Rome, Policlinico Umberto I, Viale del Policlinico 155, 00161, Rome, Italy
| | - Gianluca Canettieri
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy.
- Istituto Pasteur, Fondazione Cenci-Bolognetti, Sapienza University of Rome, Viale Regina Elena 291, 00161, Rome, Italy.
- International Polyamines Foundation-ONLUS, Via del Forte Tiburtino 98, 00159, Rome, Italy.
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22
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Dietary Polyamines Intake and Risk of Colorectal Cancer: A Case-Control Study. Nutrients 2020; 12:nu12113575. [PMID: 33266410 PMCID: PMC7700244 DOI: 10.3390/nu12113575] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 01/04/2023] Open
Abstract
Polyamines (including putrescine, spermidine, and spermine) are small, cationic molecules that are necessary for cell proliferation and differentiation. Few studies have examined the association of dietary polyamines intake with colorectal cancer risk. The aim of this study was to evaluate total polyamines, putrescine, spermidine, and spermine intake in relation to colorectal cancer risk in China. In total, 2502 colorectal cancer cases and 2538 age-(5-year interval) and sex-matched controls were recruited from July 2010 to April 2019. Odds ratios (ORs) and 95% confidence intervals (CI) were calculated by multivariable unconditional logistic regression after adjustment for various potential confounding factors. Higher intake of total polyamine, putrescine and spermidine was significantly associated with reduced risk of colorectal cancer. The adjusted ORs for the highest compared with the lowest quartile of intake were 0.60 (95% CI 0.50, 0.72; Ptrend < 0.001) for total polyamines, 0.35 (95% CI 0.29, 0.43; Ptrend < 0.001) for putrescine and 0.79 (95% CI 0.66, 0.95; Ptrend = 0.001) for spermidine, respectively. However, higher intake of spermine was associated with increased risk of colorectal cancer, with an adjusted OR of 1.58 (95% CI 1.29, 1.93; Ptrend < 0.001). This data indicate that higher intake of total polyamines, putrescine and spermidine, as well as lower intake of spermine, is associated with a decreased risk of colorectal cancer.
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Chen M, Gai Z, Okada C, Ye Y, Yu J, Yao M. Flexible NAD + Binding in Deoxyhypusine Synthase Reflects the Dynamic Hypusine Modification of Translation Factor IF5A. Int J Mol Sci 2020; 21:ijms21155509. [PMID: 32752130 PMCID: PMC7432094 DOI: 10.3390/ijms21155509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 01/23/2023] Open
Abstract
The eukaryotic and archaeal translation factor IF5A requires a post-translational hypusine modification, which is catalyzed by deoxyhypusine synthase (DHS) at a single lysine residue of IF5A with NAD+ and spermidine as cofactors, followed by hydroxylation to form hypusine. While human DHS catalyzed reactions have been well characterized, the mechanism of the hypusination of archaeal IF5A by DHS is not clear. Here we report a DHS structure from Pyrococcus horikoshii OT3 (PhoDHS) at 2.2 Å resolution. The structure reveals two states in a single functional unit (tetramer): two NAD+-bound monomers with the NAD+ and spermidine binding sites observed in multi-conformations (closed and open), and two NAD+-free monomers. The dynamic loop region V288–P299, in the vicinity of the active site, adopts different positions in the closed and open conformations and is disordered when NAD+ is absent. Combined with NAD+ binding analysis, it is clear that PhoDHS can exist in three states: apo, PhoDHS-2 equiv NAD+, and PhoDHS-4 equiv NAD+, which are affected by the NAD+ concentration. Our results demonstrate the dynamic structure of PhoDHS at the NAD+ and spermidine binding site, with conformational changes that may be the response to the local NAD+ concentration, and thus fine-tune the regulation of the translation process via the hypusine modification of IF5A.
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Affiliation(s)
- Meirong Chen
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan; (M.C.); (Z.G.); (C.O.); (Y.Y.); (J.Y.)
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zuoqi Gai
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan; (M.C.); (Z.G.); (C.O.); (Y.Y.); (J.Y.)
| | - Chiaki Okada
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan; (M.C.); (Z.G.); (C.O.); (Y.Y.); (J.Y.)
| | - Yuxin Ye
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan; (M.C.); (Z.G.); (C.O.); (Y.Y.); (J.Y.)
| | - Jian Yu
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan; (M.C.); (Z.G.); (C.O.); (Y.Y.); (J.Y.)
| | - Min Yao
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 060-0810, Japan; (M.C.); (Z.G.); (C.O.); (Y.Y.); (J.Y.)
- Correspondence: ; Tel./Fax: +81-11-706-4481
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24
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Golbedaghi R, Tabanez AM, Esmaeili S, Fausto R. Biological Applications of Macrocyclic Schiff Base Ligands and Their Metal Complexes: A Survey of the Literature (2005–2019). Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5884] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Reza Golbedaghi
- Chemistry Department Payame Noor University Tehran 19395‐4697 Iran
- University of Coimbra CQC, Department of Chemistry Coimbra P‐3004‐535 Portugal
| | - Andreia M. Tabanez
- University of Coimbra CQC, Department of Chemistry Coimbra P‐3004‐535 Portugal
| | - Somayeh Esmaeili
- Internal Medicine Department Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Rui Fausto
- University of Coimbra CQC, Department of Chemistry Coimbra P‐3004‐535 Portugal
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25
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Martella M, Catalanotto C, Talora C, La Teana A, Londei P, Benelli D. Inhibition of Eukaryotic Translation Initiation Factor 5A (eIF5A) Hypusination Suppress p53 Translation and Alters the Association of eIF5A to the Ribosomes. Int J Mol Sci 2020; 21:E4583. [PMID: 32605139 PMCID: PMC7369855 DOI: 10.3390/ijms21134583] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/17/2020] [Accepted: 06/25/2020] [Indexed: 12/22/2022] Open
Abstract
The eukaryotic translation initiation factor 5A (eIF5A) is an essential protein for the viability of the cells whose proposed function is to prevent the stalling of the ribosomes during translation elongation. eIF5A activity requires a unique and functionally essential post-translational modification, the change of a lysine to hypusine. eIF5A is recognized as a promoter of cell proliferation, but it has also been suggested to induce apoptosis. To date, the precise molecular mechanism through which eIF5A affects these processes remains elusive. In the present study, we explored whether eIF5A is involved in controlling the stress-induced expression of the key cellular regulator p53. Our results show that treatment of HCT-116 colon cancer cells with the deoxyhypusine (DHS) inhibitor N1-guanyl-1,7-diamineheptane (GC7) caused both inhibition of eIF5A hypusination and a significant reduction of p53 expression in UV-treated cells, and that eIF5A controls p53 expression at the level of protein synthesis. Furthermore, we show that treatment with GC7 followed by UV-induced stress counteracts the pro-apoptotic process triggered by p53 up-regulation. More in general, the importance of eIF5A in the cellular stress response is illustrated by the finding that exposure to UV light promotes the binding of eIF5A to the ribosomes, whereas UV treatment complemented by the presence of GC7 inhibits such binding, allowing a decrease of de novo synthesis of p53 protein.
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Affiliation(s)
- Marianna Martella
- Division of Cancer Therapeutics, The Institute of Cancer Research, London SW7 3RP, UK
| | - Caterina Catalanotto
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291/324, 00161 Rome, Italy; (C.C.); (C.T.); (P.L.)
| | - Claudio Talora
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291/324, 00161 Rome, Italy; (C.C.); (C.T.); (P.L.)
| | - Anna La Teana
- Department of Life and Environmental Science, Polytechnic University of Marche, 60131 Ancona, Italy;
| | - Paola Londei
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291/324, 00161 Rome, Italy; (C.C.); (C.T.); (P.L.)
| | - Dario Benelli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291/324, 00161 Rome, Italy; (C.C.); (C.T.); (P.L.)
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26
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Pratavieira M, da Silva Menegasso AR, Roat T, Malaspina O, Palma MS. In Situ Metabolomics of the Honeybee Brain: The Metabolism of l-Arginine through the Polyamine Pathway in the Proboscis Extension Response (PER). J Proteome Res 2020; 19:832-844. [PMID: 31859515 DOI: 10.1021/acs.jproteome.9b00653] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The proboscis extension response (PER) reflex may be used to condition the pairing of an odor with sucrose, which is applied to the antennae, in experiments to induce learning, where the odor represents a conditioned stimulus, while sucrose represents an unconditioned stimulus. A series of studies have been conducted on honeybees, relating learning and memory acquisition/retrieval using the PER as a strategy for accessing their ability to exhibit an unconditioned stimulus; however, the major metabolic processes involved in the PER are not well known. Thus, the aim of this investigation is profiling the metabolome of the honeybee brain involved in the PER. In this study, a semiquantitative approach of matrix-assisted laser desorption ionization (MALDI) mass spectral imaging (MSI) was used to profile the most abundant metabolites of the honeybee brain that support the PER. It was reported that execution of the PER requires the metabolic transformations of arginine, ornithine, and lysine as substrates for the production of putrescine, cadaverine, spermine, spermidine, 1,3-diaminopropane, and γ-aminobutyric acid (GABA). Considering the global metabolome of the brain of honeybee workers, the PER requires the consumption of large amounts of cadaverine and 1,3-diaminopropane, in parallel with the biosynthesis of high amounts of spermine, spermidine, and ornithine. To exhibit the PER, the brain of honeybee workers processes the conversion of l-arginine and l-lysine through the polyamine pathway, with different regional metabolomic profiles at the individual neuropil level. The outcomes of this study using this metabolic route as a reference are indicating that the antennal lobes and the calices (medial and lateral) were the most active brain regions for supporting the PER.
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Affiliation(s)
- Marcel Pratavieira
- Department of Biology, Center of the Study of Social Insects, Institute of Biosciences , University of São Paulo State (UNESP) , Rio Claro , SP CEP 13506-900 , Brazil
| | - Anally Ribeiro da Silva Menegasso
- Department of Biology, Center of the Study of Social Insects, Institute of Biosciences , University of São Paulo State (UNESP) , Rio Claro , SP CEP 13506-900 , Brazil
| | - Thaisa Roat
- Department of Biology, Center of the Study of Social Insects, Institute of Biosciences , University of São Paulo State (UNESP) , Rio Claro , SP CEP 13506-900 , Brazil
| | - Osmar Malaspina
- Department of Biology, Center of the Study of Social Insects, Institute of Biosciences , University of São Paulo State (UNESP) , Rio Claro , SP CEP 13506-900 , Brazil
| | - Mario Sergio Palma
- Department of Biology, Center of the Study of Social Insects, Institute of Biosciences , University of São Paulo State (UNESP) , Rio Claro , SP CEP 13506-900 , Brazil
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27
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Metur SP, Klionsky DJ. The curious case of polyamines: spermidine drives reversal of B cell senescence. Autophagy 2019; 16:389-390. [PMID: 31795807 DOI: 10.1080/15548627.2019.1698210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Spermidine, a polyamine that induces macroautophagy/autophagy, exhibits anti-aging properties. It is thought that these properties of spermidine are primarily due to its ability to modulate autophagy, but the mechanistic details were hitherto unclear. Studying the effects of spermidine on B lymphocytes, Zhang et al uncover the molecular mechanism that places spermidine at the crossroads of autophagy and immune senescence. Their work highlights the role of spermidine as an anti-aging metabolite that exerts its effects through the translational control of autophagy.Abbreviations: EIF5A, eukaryotic translation initiation factor 5A; HC, hematopoietic cell; ODC1, ornithine decarboxylase 1; PBMCs, peripheral blood mononuclear cells.
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Affiliation(s)
- Shree Padma Metur
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Daniel J Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
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28
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Zhang H, Alsaleh G, Feltham J, Sun Y, Napolitano G, Riffelmacher T, Charles P, Frau L, Hublitz P, Yu Z, Mohammed S, Ballabio A, Balabanov S, Mellor J, Simon AK. Polyamines Control eIF5A Hypusination, TFEB Translation, and Autophagy to Reverse B Cell Senescence. Mol Cell 2019; 76:110-125.e9. [PMID: 31474573 PMCID: PMC6863385 DOI: 10.1016/j.molcel.2019.08.005] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/30/2019] [Accepted: 08/02/2019] [Indexed: 02/08/2023]
Abstract
Failure to make adaptive immune responses is a hallmark of aging. Reduced B cell function leads to poor vaccination efficacy and a high prevalence of infections in the elderly. Here we show that reduced autophagy is a central molecular mechanism underlying immune senescence. Autophagy levels are specifically reduced in mature lymphocytes, leading to compromised memory B cell responses in old individuals. Spermidine, an endogenous polyamine metabolite, induces autophagy in vivo and rejuvenates memory B cell responses. Mechanistically, spermidine post-translationally modifies the translation factor eIF5A, which is essential for the synthesis of the autophagy transcription factor TFEB. Spermidine is depleted in the elderly, leading to reduced TFEB expression and autophagy. Spermidine supplementation restored this pathway and improved the responses of old human B cells. Taken together, our results reveal an unexpected autophagy regulatory mechanism mediated by eIF5A at the translational level, which can be harnessed to reverse immune senescence in humans.
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Affiliation(s)
- Hanlin Zhang
- The Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Ghada Alsaleh
- The Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Jack Feltham
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Yizhe Sun
- The Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Gennaro Napolitano
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy; Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Via Pansini 5, 80131, Naples, Italy
| | - Thomas Riffelmacher
- The Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Philip Charles
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK; Target Discovery Institute, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - Lisa Frau
- The Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Philip Hublitz
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, OX3 9DS, UK
| | - Zhanru Yu
- Target Discovery Institute, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, UK
| | - Shabaz Mohammed
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine (TIGEM), Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy; Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Via Pansini 5, 80131, Naples, Italy; Department of Molecular and Human Genetics and Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA
| | - Stefan Balabanov
- Division of Haematology, University Hospital and University of Zürich, 8091, Zürich, Switzerland
| | - Jane Mellor
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
| | - Anna Katharina Simon
- The Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK.
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29
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Zahedi K, Barone S, Soleimani M. Polyamine Catabolism in Acute Kidney Injury. Int J Mol Sci 2019; 20:E4790. [PMID: 31561575 PMCID: PMC6801762 DOI: 10.3390/ijms20194790] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/17/2019] [Accepted: 09/23/2019] [Indexed: 12/16/2022] Open
Abstract
Acute kidney injury (AKI) refers to an abrupt decrease in kidney function. It affects approximately 7% of all hospitalized patients and almost 35% of intensive care patients. Mortality from acute kidney injury remains high, particularly in critically ill patients, where it can be more than 50%. The primary causes of AKI include ischemia/reperfusion (I/R), sepsis, or nephrotoxicity; however, AKI patients may present with a complicated etiology where many of the aforementioned conditions co-exist. Multiple bio-markers associated with renal damage, as well as metabolic and signal transduction pathways that are involved in the mediation of renal dysfunction have been identified as a result of the examination of models, patient samples, and clinical data of AKI of disparate etiologies. These discoveries have enhanced our ability to diagnose AKIs and to begin to elucidate the mechanisms involved in their pathogenesis. Studies in our laboratory revealed that the expression and activity of spermine/spermidine N1-acetyltransferase (SAT1), the rate-limiting enzyme in polyamine back conversion, were enhanced in kidneys of rats after I/R injury. Additional studies revealed that the expression of spermine oxidase (SMOX), another critical enzyme in polyamine catabolism, is also elevated in the kidney and other organs subjected to I/R, septic, toxic, and traumatic injuries. The maladaptive role of polyamine catabolism in the mediation of AKI and other injuries has been clearly demonstrated. This review will examine the biochemical and mechanistic basis of tissue damage brought about by enhanced polyamine degradation and discuss the potential of therapeutic interventions that target polyamine catabolic enzymes or their byproducts for the treatment of AKI.
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Affiliation(s)
- Kamyar Zahedi
- Departments of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
- Research Services, Veterans Affairs Medical Center, Cincinnati, OH 45220, USA.
- Center on Genetics of Transport, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
| | - Sharon Barone
- Departments of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
- Research Services, Veterans Affairs Medical Center, Cincinnati, OH 45220, USA.
- Center on Genetics of Transport, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
| | - Manoocher Soleimani
- Departments of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
- Research Services, Veterans Affairs Medical Center, Cincinnati, OH 45220, USA.
- Center on Genetics of Transport, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA.
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30
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Ifhar LS, Ene HM, Ben-Shachar D. Impaired heme metabolism in schizophrenia-derived cell lines and in a rat model of the disorder: Possible involvement of mitochondrial complex I. Eur Neuropsychopharmacol 2019; 29:577-589. [PMID: 30948194 DOI: 10.1016/j.euroneuro.2019.03.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 03/18/2019] [Accepted: 03/22/2019] [Indexed: 02/07/2023]
Abstract
Accumulating data point to heme involvement in neuropsychiatric disorders. Heme plays a role in major cellular processes such as signal transduction, protein complex assembly and regulation of transcription and translation. Its synthesis involves the mitochondria, which dysfunction, specifically that of the complex I (Co-I) of the electron transport chain is involved in the pathophysiology of schizophrenia (SZ). Here we aimed to demonstrate that deficits in Co-I affect heme metabolism. We show a significant decrease in heme levels in Co-I deficient SZ-derived EBV transformed lymphocytes (lymphoblastoid cell lines - LCLs) as compared to healthy subjects-derived cells (n = 9/cohort). Moreover, protein levels assessed by immunoblotting and mRNA levels assessed by qRT-PCR of heme catabolic enzyme, heme Oxygenase 1 (HO-1), and protein levels of heme downstream target phosphorylated eukaryotic initiation factor 2-alpha (Peif2a/eif2a) were significantly elevated in SZ-derived cells. In contrast, protein and mRNA levels of heme synthesis rate limiting enzyme aminolevulinic acid synthase-1 (ALAS1) were unchanged in SZ derived LCLs. In addition, inhibition of Co-I by rotenone in healthy subjects-derived LCLs (n = 4/cohort) exhibited an initial increase followed by a later decrease in heme levels. These findings were associated with opposite changes in heme's downstream target and HO-1 level, similar to our findings in SZ-derived cells. We also show a brain region specific pattern of impairment in Co-I subunits and in HO-1 and PeIF2α/eIF2α in the Poly-IC rat model of SZ (n = 6/cohort). Our results provide evidence for a link between CoI and heme metabolism both in-vitro and in-vivo suggesting its contribution to SZ pathophysiology.
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Affiliation(s)
- Lee S Ifhar
- Laboratory of Psychobiology, Department of Psychiatry, Rambam Health Care Campus, B. Rappaport Faculty of Medicine, Rappaport Family Institute for Research in Medical Sciences, Technion IIT, POB 9649, Haifa 31096 Israel
| | - Hila M Ene
- Laboratory of Psychobiology, Department of Psychiatry, Rambam Health Care Campus, B. Rappaport Faculty of Medicine, Rappaport Family Institute for Research in Medical Sciences, Technion IIT, POB 9649, Haifa 31096 Israel
| | - Dorit Ben-Shachar
- Laboratory of Psychobiology, Department of Psychiatry, Rambam Health Care Campus, B. Rappaport Faculty of Medicine, Rappaport Family Institute for Research in Medical Sciences, Technion IIT, POB 9649, Haifa 31096 Israel.
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31
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Schlimpert M, Lagies S, Müller B, Budnyk V, Blanz KD, Walz G, Kammerer B. Metabolic perturbations caused by depletion of nephronophthisis factor Anks6 in mIMCD3 cells. Metabolomics 2019; 15:71. [PMID: 31041607 DOI: 10.1007/s11306-019-1535-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 04/24/2019] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Nephronophthisis (NPH) is an inherited form of cystic kidney disease with various extrarenal manifestations accounting for the largest amount of endstage renal disease in childhood. Patient mutations of Anks6 have also been found to cause NPH like phenotypes in animal models. However, little is known about functionality of Anks6. OBJECTIVES/METHODS We investigated the impact of Anks6 depletion on cellular metabolism of inner medullary collecting duct cells by GC-MS profiling and targeted LC-MS/MS analysis using two different shRNA cell lines for tetracycline-inducible Anks6 downregulation, namely mIMCD3 krab shANKS6 i52 and mIMCD3 krab shANKS6 i12. RESULTS In combination, we could successfully identify 158 metabolites of which 20 compounds showed similar alterations in both knockdown systems. Especially, large neutral amino acids, such as phenylalanine, where found to be significantly downregulated indicating disturbances in amino acid metabolism. Arginine, lysine and spermidine, which play an important role in cell survival and proliferation, were found to be downregulated. Accordingly, cell growth was diminished in tet treated mIMCD3 krab shANKS6 i52 knockdown cells. Deoxynucleosides were significantly downregulated in both knockdown systems. Hence, PARP1 levels were increased in tet treated mIMCD3 krab shANKS6 i52 cells, but not in tet treated mIMCD3 krab shANKS6 i12 cells. However, yH2AX was found to be increased in the latter. CONCLUSION In combination, we hypothesise that Anks6 affects DNA damage responses and proliferation and plays a crucial role in physiological amino acid and purine/pyrimidine metabolism.
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Affiliation(s)
- Manuel Schlimpert
- Center for Biological Systems Analysis, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Simon Lagies
- Center for Biological Systems Analysis, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Barbara Müller
- Renal Division, Department of Medicine, Albert-Ludwigs-University of Freiburg, Medical Center, Freiburg, Germany
| | - Vadym Budnyk
- Renal Division, Department of Medicine, Albert-Ludwigs-University of Freiburg, Medical Center, Freiburg, Germany
| | - Kelly Daryll Blanz
- Spemann Graduate School of Biology and Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Faculty of Biology, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Center for Chronic Immunodeficiency (CCI), Albert-Ludwigs-University of Freiburg, Medical Center, Freiburg, Germany
| | - Gerd Walz
- Renal Division, Department of Medicine, Albert-Ludwigs-University of Freiburg, Medical Center, Freiburg, Germany
| | - Bernd Kammerer
- Center for Biological Systems Analysis, Albert-Ludwigs-University of Freiburg, Freiburg, Germany.
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany.
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Ramos-Molina B, Queipo-Ortuño MI, Lambertos A, Tinahones FJ, Peñafiel R. Dietary and Gut Microbiota Polyamines in Obesity- and Age-Related Diseases. Front Nutr 2019; 6:24. [PMID: 30923709 PMCID: PMC6426781 DOI: 10.3389/fnut.2019.00024] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/20/2019] [Indexed: 12/14/2022] Open
Abstract
The polyamines putrescine, spermidine, and spermine are widely distributed polycationic compounds essential for cellular functions. Intracellular polyamine pools are tightly regulated by a complex regulatory mechanism involving de novo biosynthesis, catabolism, and transport across the plasma membrane. In mammals, both the production of polyamines and their uptake from the extracellular space are controlled by a set of proteins named antizymes and antizyme inhibitors. Dysregulation of polyamine levels has been implicated in a variety of human pathologies, especially cancer. Additionally, decreases in the intracellular and circulating polyamine levels during aging have been reported. The differences in the polyamine content existing among tissues are mainly due to the endogenous polyamine metabolism. In addition, a part of the tissue polyamines has its origin in the diet or their production by the intestinal microbiome. Emerging evidence has suggested that exogenous polyamines (either orally administrated or synthetized by the gut microbiota) are able to induce longevity in mice, and that spermidine supplementation exerts cardioprotective effects in animal models. Furthermore, the administration of either spermidine or spermine has been shown to be effective for improving glucose homeostasis and insulin sensitivity and reducing adiposity and hepatic fat accumulation in diet-induced obesity mouse models. The exogenous addition of agmatine, a cationic molecule produced through arginine decarboxylation by bacteria and plants, also exerts significant effects on glucose metabolism in obese models, as well as cardioprotective effects. In this review, we will discuss some aspects of polyamine metabolism and transport, how diet can affect circulating and local polyamine levels, and how the modulation of either polyamine intake or polyamine production by gut microbiota can be used for potential therapeutic purposes.
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Affiliation(s)
- Bruno Ramos-Molina
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research of Malaga, University and Malaga, Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Maria Isabel Queipo-Ortuño
- CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), Madrid, Spain.,Department of Medical Oncology, Virgen de la Victoria University Hospital, Institute of Biomedical Research of Malaga, University and Malaga, Malaga, Spain
| | - Ana Lambertos
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain.,Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Francisco J Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Institute of Biomedical Research of Malaga, University and Malaga, Malaga, Spain.,CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III (ISCIII), Madrid, Spain
| | - Rafael Peñafiel
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain.,Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
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Zhang X, Yang Z, Heng Y, Miao C. MicroRNA‑181 exerts an inhibitory role during renal fibrosis by targeting early growth response factor‑1 and attenuating the expression of profibrotic markers. Mol Med Rep 2019; 19:3305-3313. [PMID: 30816527 DOI: 10.3892/mmr.2019.9964] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 02/07/2019] [Indexed: 11/06/2022] Open
Abstract
Progressive renal fibrosis is a common complication of chronic kidney disease that results in end‑stage renal disorder. It is well established that several microRNAs (miRs) function as critical regulators implicated in fibrotic diseases. However, the role of miR‑181 in the development and progression of renal fibrosis remains unclear, and the precise mechanism has not yet been fully defined. The present study identified the functional implications of miR‑181 expression during renal fibrosis. miR‑181 exhibited significantly reduced expression in the serum of renal fibrosis patients and in the kidneys of mice with unilateral ureteral obstruction (UUO). In addition, miR‑181 downregulated the expression of human α‑smooth muscle actin (α‑SMA) in response to angiotensin II stimulation. Transfection with miR‑181 mimics significantly suppressed the expression levels of α‑SMA, connective tissue growth factor, collagen type I α1 (COL1A1) and collagen type III α1 (COL3A1) in NRK49F cells. Notably, early growth response factor‑1 (Egr1) was identified as a direct target gene of miR‑181. Furthermore, in vivo experiments revealed that treatment with miR‑181 agonist strongly rescued kidney impairment induced by UUO, as supported by Masson's trichrome staining of kidney tissues and reverse transcription‑quantitative polymerase chain reaction analysis of COL1A1 and COL3A1 mRNA levels. Therefore, miR‑181 may be regarded as an important mediator in the control of profibrotic markers during renal fibrosis via binding to Egr1, and may be a promising new target in the diagnosis and therapy of renal fibrosis.
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Affiliation(s)
- Xiaoyan Zhang
- Department of Nephrology, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Zhenning Yang
- School of Clinical Medicine, Norman Bethune Health Science Center of Jilin University, Changchun, Jilin 130022, P.R. China
| | - Yanyan Heng
- Department of Nephrology, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Congxiu Miao
- Department of Scientific Research, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
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de Proença ARG, Pereira KD, Meneguello L, Tamborlin L, Luchessi AD. Insulin action on protein synthesis and its association with eIF5A expression and hypusination. Mol Biol Rep 2019; 46:587-596. [PMID: 30519811 DOI: 10.1007/s11033-018-4512-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/19/2018] [Indexed: 12/20/2022]
Abstract
The hormone insulin plays a central role in the metabolism of carbohydrates, lipids, and proteins. In relation to protein metabolism, insulin stimulates amino acid uptake and activates protein synthesis in responsive cells by modulation of signal transduction pathways, such as associated to Akt/PkB, mTOR, S6Ks, 4E-BP1, and several translation initiation/elongation factors. In this context, there is no information on direct cellular treatment with insulin and effects on eukaryotic translation initiation factor 5A (eIF5A) regulation. The eIF5A protein contains an exclusive amino acid residue denominated hypusine, which is essential for its activity and synthesized by posttranslational modification of a specific lysine residue using spermidine as substrate. The eIF5A protein is involved in cellular proliferation and differentiation processes, as observed for satellite cells derived from rat muscles, revealing that eIF5A has an important role in muscle regeneration. The aim of this study was to determine whether eIF5A expression and hypusination are influenced by direct treatment of insulin on L6 myoblast cells. We observed that insulin increased the content of eIF5A transcripts. This effect occurred in cells treated or depleted of fetal bovine serum, revealing a positive insulin effect independent of other serum components. In addition, it was observed that hypusination follows the maintenance of eIF5A protein content in the serum depleted cells and treated with insulin. These results demonstrate that eIF5A is modulated by insulin, contributing the protein synthesis machinery control, as observed by puromycin incorporation in nascent proteins.
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Affiliation(s)
| | - Karina Danielle Pereira
- Laboratory of Biotechnology, School of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
- Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Leticia Meneguello
- Laboratory of Biotechnology, School of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
- Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Leticia Tamborlin
- Laboratory of Biotechnology, School of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
- Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Augusto Ducati Luchessi
- Laboratory of Biotechnology, School of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil.
- Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil.
- Laboratório de Biotecnologia, Faculdade de Ciências Aplicadas, Universidade Estadual de Campinas, Rua Pedro Zaccaria, 1300, Limeira, São Paulo, 13484-350, Brazil.
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35
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Chen B. The miRNA-184 drives renal fibrosis by targeting HIF1AN in vitro and in vivo. Int Urol Nephrol 2018; 51:543-550. [PMID: 30536131 PMCID: PMC6424919 DOI: 10.1007/s11255-018-2025-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 11/03/2018] [Indexed: 11/10/2022]
Abstract
Progressive renal fibrosis is the last phase of chronic kidney disease and results in renal failure. Micro-RNA has been demonstrated as important agent to drive organ fibrosis. However, the precise mechanisms are not fully understood. Here, we found miRNA-184 as a critical mediator to promote the renal fibrosis by targeting HIF1AN. In Vivo, miRNA-184 expression levels remarkably increased both in patients’ serum and in unilateral ureteral obstruction kidneys, as well as induced the expression of COL1A1 and COL3A1. Furthermore, transfection of NRK49F cells with miRNA-184 mimics down-regulated HIF1AN, transfection of NRK49F cells with miRNA-184 inhibitor up-regulated HIF1AN, while the cells transfected with miRNA-184 inhibitor exerted the opposite effect. When the cells were co-transfected with miRNA-184 mimics and HIF1AN, the expression of α-SMA, GTGF, COL1A1, and COL3A1 at mRNA level was apparently decreased when compared with miRNA-184 mimic-transfected cells, which was strengthened when transfected with miRNA-184 inhibitor. Thus, miRNA-184 is an important agent to promote the fibrosis though binding to HIF1AN, and may be a promising novel target in treatment of renal fibrosis.
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Affiliation(s)
- Bin Chen
- Kidney Department, Zhenhai People's Hospital of Ningbo City (Ningbo No.7 Hospital), 718 Nanerxi Road, Luotuo Subdistrict, Zhenhai, Ningbo, People's Republic of China.
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36
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Olsen ME, Cressey TN, Mühlberger E, Connor JH. Differential Mechanisms for the Involvement of Polyamines and Hypusinated eIF5A in Ebola Virus Gene Expression. J Virol 2018; 92:e01260-18. [PMID: 30045993 PMCID: PMC6158423 DOI: 10.1128/jvi.01260-18] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 07/21/2018] [Indexed: 02/06/2023] Open
Abstract
Polyamines and hypusinated eIF5A have been implicated in the replication of diverse viruses; however, defining their roles in supporting virus replication is still under investigation. We have previously reported that Ebola virus (EBOV) requires polyamines and hypusinated eIF5A for replication. Using a replication-deficient minigenome construct, we show that gene expression, in the absence of genome replication, requires hypusinated eIF5A. Additional experiments demonstrated that the block in gene expression upon hypusine depletion was posttranscriptional, as minigenome reporter mRNA transcribed by the EBOV polymerase accumulated normally in the presence of drug treatment where protein did not. When this mRNA was isolated from cells with low levels of hypusinated eIF5A and transfected into cells with normal eIF5A function, minigenome reporter protein accumulation was normal, demonstrating that the mRNA produced was functional but required hypusinated eIF5A function for translation. Our results support a mechanism in which hypusinated eIF5A is required for the translation, but not synthesis, of EBOV transcripts. In contrast, depletion of polyamines with difluoromethylornithine (DFMO) resulted in a strong block in the accumulation of EBOV polymerase-produced mRNA, indicating a different mechanism of polyamine suppression of EBOV gene expression. Supplementing with exogenous polyamines after DFMO treatment restored mRNA accumulation and luciferase activity. These data indicate that cellular polyamines are required for two distinct aspects of the EBOV life cycle. The bifunctional requirement for polyamines underscores the importance of these cellular metabolites in EBOV replication and suggests that repurposing existing inhibitors of this pathway could be an effective approach for EBOV therapeutics.IMPORTANCE Ebola virus is a genetically simple virus that has a small number of proteins. Because of this, it requires host molecules and proteins to produce new infectious virus particles. Though attention is often focused on cellular proteins required for this process, it has recently been shown that cellular metabolites such as polyamines are also necessary for EBOV replication. Here we show that polyamines such as spermine and spermidine are required for the accumulation of EBOV mRNA and that eIF5A, a molecule modified by spermidine, is required for the translation, but not the production, of EBOV mRNAs. These findings suggest that effectively targeting this pathway could provide a biphasic block of EBOV replication.
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Affiliation(s)
- Michelle E Olsen
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University, Boston, Massachusetts, USA
| | - Tessa N Cressey
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University, Boston, Massachusetts, USA
| | - Elke Mühlberger
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University, Boston, Massachusetts, USA
| | - John H Connor
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University, Boston, Massachusetts, USA
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Abstract
Polyamines are organic polycations that bind to a variety of cellular molecules, including nucleic acids. Within cells, polyamines contribute to both the efficiency and fidelity of protein synthesis. In addition to directly acting on the translation apparatus to stimulate protein synthesis, the polyamine spermidine serves as a precursor for the essential post-translational modification of the eukaryotic translation factor 5A (eIF5A), which is required for synthesis of proteins containing problematic amino acid sequence motifs, including polyproline tracts, and for termination of translation. The impact of polyamines on translation is highlighted by autoregulation of the translation of mRNAs encoding key metabolic and regulatory proteins in the polyamine biosynthesis pathway, including S-adenosylmethionine decarboxylase (AdoMetDC), antizyme (OAZ), and antizyme inhibitor 1 (AZIN1). Here, we highlight the roles of polyamines in general translation and also in the translational regulation of polyamine biosynthesis.
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Affiliation(s)
- Thomas E Dever
- From the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
| | - Ivaylo P Ivanov
- From the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892
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38
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Park MH, Wolff EC. Hypusine, a polyamine-derived amino acid critical for eukaryotic translation. J Biol Chem 2018; 293:18710-18718. [PMID: 30257869 DOI: 10.1074/jbc.tm118.003341] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The natural amino acid hypusine (N ϵ-4-amino-2-hydroxybutyl(lysine)) is derived from the polyamine spermidine, and occurs only in a single family of cellular proteins, eukaryotic translation factor 5A (eIF5A) isoforms. Hypusine is formed by conjugation of the aminobutyl moiety of spermidine to a specific lysine residue of this protein. The posttranslational synthesis of hypusine involves two enzymatic steps, catalyzed by deoxyhypusine synthase (DHPS) and deoxyhypusine hydroxylase (DOHH). Hypusine is essential for eIF5A activity. Inactivation of either the eIF5A or the DHPS gene is lethal in yeast and mouse, underscoring the vital role of eIF5A hypusination in eukaryotic cell growth and animal development. The long and basic side chain of the hypusine residue promotes eIF5A-mediated translation elongation by facilitating peptide bond formation at polyproline stretches and at many other ribosome-pausing sites. It also enhances translation termination by stimulating peptide release. By promoting translation, the hypusine modification of eIF5A provides a key link between polyamines and cell growth regulation. eIF5A has been implicated in several human pathological conditions. Recent genetic data suggest that eIF5A haploinsufficiency or impaired deoxyhypusine synthase activity is associated with neurodevelopmental disorders in humans.
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Affiliation(s)
- Myung Hee Park
- From the NIDCR, National Institutes of Health, Bethesda, Maryland 20892
| | - Edith C Wolff
- From the NIDCR, National Institutes of Health, Bethesda, Maryland 20892
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Uncovering Natural Longevity Alleles from Intercrossed Pools of Aging Fission Yeast Cells. Genetics 2018; 210:733-744. [PMID: 30072377 PMCID: PMC6216586 DOI: 10.1534/genetics.118.301262] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 07/31/2018] [Indexed: 01/24/2023] Open
Abstract
Chronological lifespan of non-dividing yeast cells is a quantitative trait that reflects cellular aging. By monitoring allele frequencies in aging segregant pools, Ellis et al. uncover regulatory variants in the 5'-untranslated regions of two genes... Quantitative traits often show large variation caused by multiple genetic factors . One such trait is the chronological lifespan of non-dividing yeast cells, serving as a model for cellular aging. Screens for genetic factors involved in aging typically assay mutants of protein-coding genes. To identify natural genetic variants contributing to cellular aging, we exploited two strains of the fission yeast, Schizosaccharomyces pombe, that differ in chronological lifespan. We generated segregant pools from these strains and subjected them to advanced intercrossing over multiple generations to break up linkage groups. We chronologically aged the intercrossed segregant pool, followed by genome sequencing at different times to detect genetic variants that became reproducibly enriched as a function of age. A region on Chromosome II showed strong positive selection during aging. Based on expected functions, two candidate variants from this region in the long-lived strain were most promising to be causal: small insertions and deletions in the 5′-untranslated regions of ppk31 and SPBC409.08. Ppk31 is an ortholog of Rim15, a conserved kinase controlling cell proliferation in response to nutrients, while SPBC409.08 is a predicted spermine transmembrane transporter. Both Rim15 and the spermine-precursor, spermidine, are implicated in aging as they are involved in autophagy-dependent lifespan extension. Single and double allele replacement suggests that both variants, alone or combined, have subtle effects on cellular longevity. Furthermore, deletion mutants of both ppk31 and SPBC409.08 rescued growth defects caused by spermidine. We propose that Ppk31 and SPBC409.08 may function together to modulate lifespan, thus linking Rim15/Ppk31 with spermidine metabolism.
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Myc, Oncogenic Protein Translation, and the Role of Polyamines. Med Sci (Basel) 2018; 6:medsci6020041. [PMID: 29799508 PMCID: PMC6024823 DOI: 10.3390/medsci6020041] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/19/2018] [Accepted: 05/22/2018] [Indexed: 01/21/2023] Open
Abstract
Deregulated protein synthesis is a common feature of cancer cells, with many oncogenic signaling pathways directly augmenting protein translation to support the biomass needs of proliferating tissues. MYC’s ability to drive oncogenesis is a consequence of its essential role as a governor linking cell cycle entry with the requisite increase in protein synthetic capacity, among other biomass needs. To date, direct pharmacologic inhibition of MYC has proven difficult, but targeting oncogenic signaling modules downstream of MYC, such as the protein synthetic machinery, may provide a viable therapeutic strategy. Polyamines are essential cations found in nearly all living organisms that have both direct and indirect roles in the control of protein synthesis. Polyamine metabolism is coordinately regulated by MYC to increase polyamines in proliferative tissues, and this is further augmented in the many cancer cells harboring hyperactivated MYC. In this review, we discuss MYC-driven regulation of polyamines and protein synthetic capacity as a key function of its oncogenic output, and how this dependency may be perturbed through direct pharmacologic targeting of components of the protein synthetic machinery, such as the polyamines themselves, the eukaryotic translation initiation factor 4F (eIF4F) complex, and the eukaryotic translation initiation factor 5A (eIF5A).
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Chung S, Tian J, Tan Z, Chen J, Lee J, Borys M, Li ZJ. Industrial bioprocessing perspectives on managing therapeutic protein charge variant profiles. Biotechnol Bioeng 2018. [DOI: 10.1002/bit.26587] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Stanley Chung
- Department of Chemical Engineering; Northeastern University; Boston Massachusetts
| | - Jun Tian
- Biologics Development, Global Product Development and Supply; Bristol-Myers Squibb Company; Devens Massachusetts
| | - Zhijun Tan
- Biologics Development, Global Product Development and Supply; Bristol-Myers Squibb Company; Devens Massachusetts
| | - Jie Chen
- Biologics Development, Global Product Development and Supply; Bristol-Myers Squibb Company; Devens Massachusetts
| | - Jongchan Lee
- Biologics Development, Global Product Development and Supply; Bristol-Myers Squibb Company; Devens Massachusetts
| | - Michael Borys
- Biologics Development, Global Product Development and Supply; Bristol-Myers Squibb Company; Devens Massachusetts
| | - Zheng Jian Li
- Biologics Development, Global Product Development and Supply; Bristol-Myers Squibb Company; Devens Massachusetts
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Schultz CR, Geerts D, Mooney M, El-Khawaja R, Koster J, Bachmann AS. Synergistic drug combination GC7/DFMO suppresses hypusine/spermidine-dependent eIF5A activation and induces apoptotic cell death in neuroblastoma. Biochem J 2018; 475:531-545. [PMID: 29295892 DOI: 10.1042/bcj20170597] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 12/19/2017] [Accepted: 01/01/2018] [Indexed: 12/17/2023]
Abstract
The eukaryotic initiation factor 5A (eIF5A), which contributes to several crucial processes during protein translation, is the only protein that requires activation by a unique post-translational hypusine modification. eIF5A hypusination controls cell proliferation and has been linked to cancer. eIF5A hypusination requires the enzymes deoxyhypusine synthase (DHPS) and deoxyhypusine hydroxylase and uniquely depends on the polyamine (PA) spermidine as the sole substrate. Ornithine decarboxylase (ODC) is the rate-limiting enzyme in PA biosynthesis. Both ODC and PAs control cell proliferation and are frequently dysregulated in cancer. Since only spermidine can activate eIF5A, we chose the hypusine-PA nexus as a rational target to identify new drug combinations with synergistic antiproliferative effects. We show that elevated mRNA levels of the two target enzymes DHPS and ODC correlate with poor prognosis in a large cohort of neuroblastoma (NB) tumors. The DHPS inhibitor GC7 (N1-guanyl-1,7-diaminoheptane) and the ODC inhibitor α-difluoromethylornithine (DFMO) are target-specific and in combination induced synergistic effects in NB at concentrations that were not individually cytotoxic. Strikingly, while each drug alone at higher concentrations is known to induce p21/Rb- or p27/Rb-mediated G1 cell cycle arrest, we found that the drug combination induced caspase 3/7/9, but not caspase 8-mediated apoptosis, in NB cells. Hypusinated eIF5A levels and intracellular spermidine levels correlated directly with drug treatments, signifying specific drug targeting effects. This two-pronged GC7/DFMO combination approach specifically inhibits both spermidine biosynthesis and post-translational, spermidine-dependent hypusine-eIF5A activation, offering an exciting clue for improved NB drug therapy.
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Affiliation(s)
- Chad R Schultz
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, U.S.A
| | - Dirk Geerts
- Department of Medical Biology, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Marie Mooney
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, U.S.A
| | | | - Jan Koster
- Department of Oncogenomics, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - André S Bachmann
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, U.S.A.
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Arruabarrena-Aristorena A, Zabala-Letona A, Carracedo A. Oil for the cancer engine: The cross-talk between oncogenic signaling and polyamine metabolism. SCIENCE ADVANCES 2018; 4:eaar2606. [PMID: 29376126 PMCID: PMC5783676 DOI: 10.1126/sciadv.aar2606] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 12/28/2017] [Indexed: 05/09/2023]
Abstract
The study of metabolism has provided remarkable information about the biological basis and therapeutic weaknesses of cancer cells. Classic biochemistry established the importance of metabolic alterations in tumor biology and revealed the importance of various metabolite families to the tumorigenic process. We have evidence of the central role of polyamines, small polycatonic metabolites, in cell proliferation and cancer growth from these studies. However, how cancer cells activate this metabolic pathway and the molecular cues behind the oncogenic action of polyamines has remained largely obscure. In contrast to the view of metabolites as fuel (anabolic intermediates) for cancer cells, polyamines are better defined as the oil that lubricates the cancer engine because they affect the activity of biological processes. Modern research has brought back to the limelight this metabolic pathway, providing a strong link between genetic, metabolic, and signaling events in cancer. In this review, we enumerate and discuss current views of the regulation and activity of polyamine metabolism in tumor cell biology.
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Affiliation(s)
| | - Amaia Zabala-Letona
- CIC bioGUNE, Bizkaia Technology Park, 801A Building, 48160 Derio, Bizkaia, Spain
- CIBERONC Centro de Investigación Biomédica en Red de Cáncer, Avenida Monforte de Lemos, Madrid, Spain
| | - Arkaitz Carracedo
- CIC bioGUNE, Bizkaia Technology Park, 801A Building, 48160 Derio, Bizkaia, Spain
- CIBERONC Centro de Investigación Biomédica en Red de Cáncer, Avenida Monforte de Lemos, Madrid, Spain
- Ikerbasque, Basque Foundation for Science, 48011 Bilbao, Spain
- Biochemistry and Molecular Biology Department, University of the Basque Country (UPV/EHU), P.O. Box 644, E-48080 Bilbao, Spain
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Abstract
Abstract
Clinical practice and experimental studies have shown the necessity of sufficient quantities of folic acid intake for normal embryogenesis and fetal development in the prevention of neural tube defects (NTDs) and neurological malformations. So, women of childbearing age must be sure to have an adequate folate intake periconceptionally, prior to and during pregnancy. Folic acid fortification of all enriched cereal grain product flour has been implemented in many countries. Thus, hundreds of thousands of people have been exposed to an increased intake of folic acid. Folate plays an essential role in the biosynthesis of methionine. Methionine is the principal aminopropyl donor required for polyamine biosynthesis, which is up-regulated in actively growing cells, including cancer cells. Folates are important in RNA and DNA synthesis, DNA stability and integrity. Clinical and epidemiological evidence links folate deficiency to DNA damage and cancer. On the other hand, long-term folate oversupplementation leads to adverse toxic effects, resulting in the appearance of malignancy. Considering the relationship of polyamines and rapidly proliferating tissues (especially cancers), there is a need for better investigation of the relationship between the ingestion of high amounts of folic acid in food supplementation and polyamine metabolism, related to malignant processes in the human body.
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Zahedi K, Barone S, Destefano-Shields C, Brooks M, Murray-Stewart T, Dunworth M, Li W, Doherty JR, Hall MA, Smith RD, Cleveland JL, Casero RA, Soleimani M. Activation of endoplasmic reticulum stress response by enhanced polyamine catabolism is important in the mediation of cisplatin-induced acute kidney injury. PLoS One 2017; 12:e0184570. [PMID: 28886181 PMCID: PMC5590979 DOI: 10.1371/journal.pone.0184570] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/26/2017] [Indexed: 12/22/2022] Open
Abstract
Cisplatin-induced nephrotoxicity limits its use in many cancer patients. The expression of enzymes involved in polyamine catabolism, spermidine/spermine N1-acetyltransferase (SSAT) and spermine oxidase (SMOX) increase in the kidneys of mice treated with cisplatin. We hypothesized that enhanced polyamine catabolism contributes to tissue damage in cisplatin acute kidney injury (AKI). Using gene knockout and chemical inhibitors, the role of polyamine catabolism in cisplatin AKI was examined. Deficiency of SSAT, SMOX or neutralization of the toxic products of polyamine degradation, H2O2 and aminopropanal, significantly diminished the severity of cisplatin AKI. In vitro studies demonstrated that the induction of SSAT and elevated polyamine catabolism in cells increases the phosphorylation of eukaryotic translation initiation factor 2α (eIF2α) and enhances the expression of binding immunoglobulin protein BiP/GRP78) and CCAAT-enhancer-binding protein homologous protein (CHOP/GADD153). The increased expression of these endoplasmic reticulum stress response (ERSR) markers was accompanied by the activation of caspase-3. These results suggest that enhanced polyamine degradation in cisplatin AKI may lead to tubular damage through the induction of ERSR and the consequent onset of apoptosis. In support of the above, we show that the ablation of the SSAT or SMOX gene, as well as the neutralization of polyamine catabolism products modulate the onset of ERSR (e.g. lower BiP and CHOP) and apoptosis (e.g. reduced activated caspase-3). These studies indicate that enhanced polyamine catabolism and its toxic products are important mediators of ERSR and critical to the pathogenesis of cisplatin AKI.
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Affiliation(s)
- Kamyar Zahedi
- Departments of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Center on Genetics of Transport, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Research Services, Veterans Affairs Medical Center, Cincinnati, OH, United States of America
| | - Sharon Barone
- Departments of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Center on Genetics of Transport, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Research Services, Veterans Affairs Medical Center, Cincinnati, OH, United States of America
| | - Christina Destefano-Shields
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Marybeth Brooks
- Center on Genetics of Transport, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
| | - Tracy Murray-Stewart
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Matthew Dunworth
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Weimin Li
- Department of Tumor Biology, Moffitt Cancer Center and Research Institute, Tampa, FL, United States of America
- Department of Cancer Biology, The Scripps Research Institute, Jupiter, FL, United States of America
| | - Joanne R. Doherty
- Department of Cancer Biology, The Scripps Research Institute, Jupiter, FL, United States of America
| | - Mark A. Hall
- Department of Cancer Biology, The Scripps Research Institute, Jupiter, FL, United States of America
| | - Roger D. Smith
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
| | - John L. Cleveland
- Department of Cancer Biology, The Scripps Research Institute, Jupiter, FL, United States of America
- Department of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
| | - Robert A. Casero
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Manoocher Soleimani
- Departments of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Center on Genetics of Transport, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- Research Services, Veterans Affairs Medical Center, Cincinnati, OH, United States of America
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Mounce BC, Cesaro T, Moratorio G, Hooikaas PJ, Yakovleva A, Werneke SW, Smith EC, Poirier EZ, Simon-Loriere E, Prot M, Tamietti C, Vitry S, Volle R, Khou C, Frenkiel MP, Sakuntabhai A, Delpeyroux F, Pardigon N, Flamand M, Barba-Spaeth G, Lafon M, Denison MR, Albert ML, Vignuzzi M. Inhibition of Polyamine Biosynthesis Is a Broad-Spectrum Strategy against RNA Viruses. J Virol 2016; 90:9683-9692. [PMID: 27535047 PMCID: PMC5068521 DOI: 10.1128/jvi.01347-16] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 08/06/2016] [Indexed: 11/20/2022] Open
Abstract
RNA viruses present an extraordinary threat to human health, given their sudden and unpredictable appearance, the potential for rapid spread among the human population, and their ability to evolve resistance to antiviral therapies. The recent emergence of chikungunya virus, Zika virus, and Ebola virus highlights the struggles to contain outbreaks. A significant hurdle is the availability of antivirals to treat the infected or protect at-risk populations. While several compounds show promise in vitro and in vivo, these outbreaks underscore the need to accelerate drug discovery. The replication of several viruses has been described to rely on host polyamines, small and abundant positively charged molecules found in the cell. Here, we describe the antiviral effects of two molecules that alter polyamine levels: difluoromethylornithine (DFMO; also called eflornithine), which is a suicide inhibitor of ornithine decarboxylase 1 (ODC1), and diethylnorspermine (DENSpm), an activator of spermidine/spermine N1-acetyltransferase (SAT1). We show that reducing polyamine levels has a negative effect on diverse RNA viruses, including several viruses involved in recent outbreaks, in vitro and in vivo These findings highlight the importance of the polyamine biosynthetic pathway to viral replication, as well as its potential as a target in the development of further antivirals or currently available molecules, such as DFMO. IMPORTANCE RNA viruses present a significant hazard to human health, and combatting these viruses requires the exploration of new avenues for targeting viral replication. Polyamines, small positively charged molecules within the cell, have been demonstrated to facilitate infection for a few different viruses. Our study demonstrates that diverse RNA viruses rely on the polyamine pathway for replication and highlights polyamine biosynthesis as a promising drug target.
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Affiliation(s)
- Bryan C Mounce
- Viral Populations and Pathogenesis Unit, Institut Pasteur, Paris, France
| | - Teresa Cesaro
- Viral Populations and Pathogenesis Unit, Institut Pasteur, Paris, France
| | - Gonzalo Moratorio
- Viral Populations and Pathogenesis Unit, Institut Pasteur, Paris, France
| | - Peter Jan Hooikaas
- Viral Populations and Pathogenesis Unit, Institut Pasteur, Paris, France
| | - Anna Yakovleva
- Viral Populations and Pathogenesis Unit, Institut Pasteur, Paris, France
| | - Scott W Werneke
- Laboratory of Dendritic Cell Biology, Institut Pasteur, Paris, France Institut National de la Santé et de la Recherche Médicale, U818, Paris, France
| | - Everett Clinton Smith
- Department of Pediatrics, the Elizabeth B. Lamb Center for Pediatric Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Enzo Z Poirier
- Viral Populations and Pathogenesis Unit, Institut Pasteur, Paris, France University Paris Diderot, Sorbonne Paris Cite, Cellule Pasteur, Paris, France
| | - Etienne Simon-Loriere
- Unité de Génétique Fonctionnelle des Maladies Infectieuses, Institut Pasteur, Paris, France
| | - Matthieu Prot
- Unité de Génétique Fonctionnelle des Maladies Infectieuses, Institut Pasteur, Paris, France
| | - Carole Tamietti
- Unité de Virologie Structurale, Institut Pasteur, Paris, France
| | - Sandrine Vitry
- Unité de NeuroImmunologie Virale, Institut Pasteur, Paris, France
| | - Romain Volle
- Unité de Biologie des Virus Entériques, Institut Pasteur, Paris, France INSERM, Unité 994, Paris, France
| | - Cécile Khou
- Unité de Recherche et d'Expertise Environnement et Risques Infectieux, Institut Pasteur, Paris, France
| | - Marie-Pascale Frenkiel
- Unité de Recherche et d'Expertise Environnement et Risques Infectieux, Institut Pasteur, Paris, France
| | - Anavaj Sakuntabhai
- Unité de Génétique Fonctionnelle des Maladies Infectieuses, Institut Pasteur, Paris, France
| | - Francis Delpeyroux
- Unité de Biologie des Virus Entériques, Institut Pasteur, Paris, France INSERM, Unité 994, Paris, France
| | - Nathalie Pardigon
- Unité de Recherche et d'Expertise Environnement et Risques Infectieux, Institut Pasteur, Paris, France
| | - Marie Flamand
- Unité de Virologie Structurale, Institut Pasteur, Paris, France
| | | | - Monique Lafon
- Unité de NeuroImmunologie Virale, Institut Pasteur, Paris, France
| | - Mark R Denison
- Department of Pediatrics, the Elizabeth B. Lamb Center for Pediatric Research, Vanderbilt University Medical Center, Nashville, Tennessee, USA Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Matthew L Albert
- Laboratory of Dendritic Cell Biology, Institut Pasteur, Paris, France Institut National de la Santé et de la Recherche Médicale, U818, Paris, France
| | - Marco Vignuzzi
- Viral Populations and Pathogenesis Unit, Institut Pasteur, Paris, France
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Okumura S, Teratani T, Fujimoto Y, Zhao X, Tsuruyama T, Masano Y, Kasahara N, Iida T, Yagi S, Uemura T, Kaido T, Uemoto S. Oral administration of polyamines ameliorates liver ischemia/reperfusion injury and promotes liver regeneration in rats. Liver Transpl 2016; 22:1231-44. [PMID: 27102080 DOI: 10.1002/lt.24471] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 03/17/2016] [Accepted: 04/11/2016] [Indexed: 12/14/2022]
Abstract
Polyamines are essential for cell growth and differentiation. They play important roles in protection from liver damage and promotion of liver regeneration. However, little is known about the effect of oral exogenous polyamine administration on liver damage and regeneration. This study investigated the impact of polyamines (spermidine and spermine) on ischemia/reperfusion injury (IRI) and liver regeneration. We used a rat model in which a 70% hepatectomy after 40 minutes of ischemia was performed to mimic the clinical condition of living donor partial liver transplantation (LT). Male Lewis rats were separated into 2 groups: a polyamine group given polyamines before and after operation as treatment and a vehicle group given distilled water as placebo. The levels of serum aspartate aminotransferase and alanine aminotransferase at 6, 24, and 48 hours after reperfusion were significantly lower in the polyamine group compared with those in the vehicle group. Polyamine treatment reduced the expression of several proinflammatory cytokines and chemokines at 6 hours after reperfusion. Histological analysis showed significantly less necrosis and apoptosis in the polyamine group at 6 hours after reperfusion. Sinusoidal endothelial cells were also well preserved in the polyamine group. In addition, the regeneration of the remnant liver at 24, 48, and 168 hours after reperfusion was significantly accelerated, and the Ki-67 labeling index and the expressions of proliferating cell nuclear antigen and phosphorylated retinoblastoma protein at 24 hours after reperfusion were significantly higher in the polyamine group compared with those in the vehicle group. In conclusion, perioperative oral polyamine administration attenuates liver IRI and promotes liver regeneration. It might be a new therapeutic option to improve the outcomes of partial LT. Liver Transplantation 22 1231-1244 2016 AASLD.
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Affiliation(s)
- Shinya Okumura
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University, Kyoto, Japan
| | - Takumi Teratani
- Center for Development of Advanced Medical Technology, Jichi Medical University, Tochigi, Japan
| | - Yasuhiro Fujimoto
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University, Kyoto, Japan.,Department of Surgery, Shizuoka Municipal Hospital, Shizuoka, Japan
| | - Xiangdong Zhao
- Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Tatsuaki Tsuruyama
- Department of Pathology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yuki Masano
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University, Kyoto, Japan
| | - Naoya Kasahara
- Center for Development of Advanced Medical Technology, Jichi Medical University, Tochigi, Japan
| | - Taku Iida
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University, Kyoto, Japan
| | - Shintaro Yagi
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University, Kyoto, Japan
| | - Tadahiro Uemura
- Transplant Institute, Allegheny General Hospital, Pittsburgh, PA
| | - Toshimi Kaido
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University, Kyoto, Japan
| | - Shinji Uemoto
- Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University, Kyoto, Japan
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48
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Spermidine alleviates experimental autoimmune encephalomyelitis through inducing inhibitory macrophages. Cell Death Differ 2016; 23:1850-1861. [PMID: 27447115 PMCID: PMC5071574 DOI: 10.1038/cdd.2016.71] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 05/31/2016] [Accepted: 06/22/2016] [Indexed: 12/20/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic and debilitating autoimmune disease, characterized by chronic inflammatory demyelination in the nervous tissue and subsequent neurological dysfunction. Spermidine, a natural polyamine, has been shown to affect inflammation in some experimental models. We show here that spermidine could alleviate experimental autoimmune encephalomyelitis (EAE), a model for MS, through regulating the infiltration of CD4+ T cells and macrophages in central nervous system. Unexpectedly, we found that spermidine treatment of MOG-specific T cells did not affect their pathogenic potency upon adaptive transfer; however, spermidine diminished the ability of macrophages in activating MOG-specific T cells ex vivo. Depletion of macrophages in diseased mice completely abolished the therapeutic effect of spermidine, indicating a critical role of spermidine-activated macrophages. Mechanistically, spermidine was found to specifically suppress the expression of interleukin-1beta (IL-1β), IL-12 and CD80 while enhance the expression of arginase 1 in macrophages. Interestingly, macrophages from spermidine-treated mice could also reverse EAE progression, while pretreatment of those macrophages with the arginase 1 inhibitor abrogated the therapeutic effect. Therefore, our studies revealed a critical role of macrophages in spermidine-mediated treatment on EAE and provided novel information for better management of MS.
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Chu J, Cargnello M, Topisirovic I, Pelletier J. Translation Initiation Factors: Reprogramming Protein Synthesis in Cancer. Trends Cell Biol 2016; 26:918-933. [PMID: 27426745 DOI: 10.1016/j.tcb.2016.06.005] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/03/2016] [Accepted: 06/13/2016] [Indexed: 12/11/2022]
Abstract
Control of mRNA translation plays a crucial role in the regulation of gene expression and is critical for cellular homeostasis. Dysregulation of translation initiation factors has been documented in several pathologies including cancer. Aberrant function of translation initiation factors leads to translation reprogramming that promotes proliferation, survival, angiogenesis, and metastasis. In such context, understanding how altered levels (and presumably activity) of initiation factors can contribute to tumor initiation and/or maintenance is of major interest for the development of novel therapeutic strategies. In this review we provide an overview of translation initiation mechanisms and focus on recent findings describing the role of individual initiation factors and their aberrant activity in cancer.
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Affiliation(s)
- Jennifer Chu
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
| | - Marie Cargnello
- Lady Davis Institute, SMBD JGH, McGill University, Montreal, Quebec, Canada; Gerald Bronfman Department of Oncology, McGill University, Quebec, Canada
| | - Ivan Topisirovic
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada; Lady Davis Institute, SMBD JGH, McGill University, Montreal, Quebec, Canada; Gerald Bronfman Department of Oncology, McGill University, Quebec, Canada.
| | - Jerry Pelletier
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada; Gerald Bronfman Department of Oncology, McGill University, Quebec, Canada; The Rosalind and Morris Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada.
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50
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Mounce BC, Poirier EZ, Passoni G, Simon-Loriere E, Cesaro T, Prot M, Stapleford KA, Moratorio G, Sakuntabhai A, Levraud JP, Vignuzzi M. Interferon-Induced Spermidine-Spermine Acetyltransferase and Polyamine Depletion Restrict Zika and Chikungunya Viruses. Cell Host Microbe 2016; 20:167-77. [PMID: 27427208 DOI: 10.1016/j.chom.2016.06.011] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 05/17/2016] [Accepted: 06/13/2016] [Indexed: 01/05/2023]
Abstract
Polyamines are small, positively charged molecules derived from ornithine and synthesized through an intricately regulated enzymatic pathway. Within cells, they are abundant and play several roles in diverse processes. We find that polyamines are required for the life cycle of the RNA viruses chikungunya virus (CHIKV) and Zika virus (ZIKV). Depletion of spermidine and spermine via type I interferon signaling-mediated induction of spermidine/spermine N1-acetyltransferase (SAT1), a key catabolic enzyme in the polyamine pathway, restricts CHIKV and ZIKV replication. Polyamine depletion restricts these viruses in vitro and in vivo, due to impairment of viral translation and RNA replication. The restriction is released by exogenous replenishment of polyamines, further supporting a role for these molecules in virus replication. Thus, SAT1 and, more broadly, polyamine depletion restrict viral replication and suggest promising avenues for antiviral therapies.
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Affiliation(s)
- Bryan C Mounce
- Viral Populations and Pathogenesis Unit, Institut Pasteur, CNRS UMR 3569, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Enzo Z Poirier
- Viral Populations and Pathogenesis Unit, Institut Pasteur, CNRS UMR 3569, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France; University of Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, 75013 Paris, France
| | - Gabriella Passoni
- Virologie et Immunologie Moléculaire, INRA, Domaine de Vilvert, 78352 Jouy-en-Josas, France; Macrophages et Développement de l'Immunité, Institut Pasteur, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France; CNRS URA2578, 75724 Paris Cedex 15, France
| | - Etienne Simon-Loriere
- Unité de Génétique Fonctionnelle des Maladies Infectieuses, Institut Pasteur, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Teresa Cesaro
- Viral Populations and Pathogenesis Unit, Institut Pasteur, CNRS UMR 3569, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Matthieu Prot
- Unité de Génétique Fonctionnelle des Maladies Infectieuses, Institut Pasteur, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Kenneth A Stapleford
- Viral Populations and Pathogenesis Unit, Institut Pasteur, CNRS UMR 3569, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Gonzalo Moratorio
- Viral Populations and Pathogenesis Unit, Institut Pasteur, CNRS UMR 3569, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Anavaj Sakuntabhai
- Unité de Génétique Fonctionnelle des Maladies Infectieuses, Institut Pasteur, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Jean-Pierre Levraud
- Macrophages et Développement de l'Immunité, Institut Pasteur, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France; CNRS URA2578, 75724 Paris Cedex 15, France
| | - Marco Vignuzzi
- Viral Populations and Pathogenesis Unit, Institut Pasteur, CNRS UMR 3569, 25-28 rue du Dr. Roux, 75724 Paris Cedex 15, France.
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