1
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Ojomoko LO, Kryukova EV, Egorova NS, Salikhov AI, Epifanova LA, Denisova DA, Khomutov AR, Sukhov DA, Vassilevski AA, Khomutov MA, Tsetlin VI, Shelukhina IV. Inhibition of nicotinic acetylcholine receptors by oligoarginine peptides and polyamine-related compounds. Front Pharmacol 2023; 14:1327603. [PMID: 38169863 PMCID: PMC10758494 DOI: 10.3389/fphar.2023.1327603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Oligoarginine peptides, known mostly for their cell-penetrating properties, are also inhibitors of the nicotinic acetylcholine receptors (nAChRs). Since octa-arginine (R8) inhibits α9α10 nAChR and suppresses neuropathic pain, we checked if other polycationic compounds containing amino and/or guanidino groups could be effective and tested the activity of the disulfide-fixed "cyclo"R8, a series of biogenic polyamines (putrescine, spermidine, and spermine), C-methylated spermine analogs, agmatine and its analogs, as well as acylpolyamine argiotoxin-636 from spider venom. Their inhibitory potency on muscle-type, α7 and α9α10 nAChRs was determined using radioligand analysis, electrophysiology, and calcium imaging. "Cyclo"R8 showed similar activity to that of R8 against α9α10 nAChR (IC50 ≈ 60 nM). Biogenic polyamines as well as agmatine and its analogs displayed low activity on muscle-type Torpedo californica, as well as α7 and α9α10 nAChRs, which increased with chain length, the most active being spermine and its C-methylated derivatives having IC50 of about 30 μM against muscle-type T. californica nAChR. Argiotoxin-636, which contains a polyamine backbone and terminal guanidino group, also weakly inhibited T. californica nAChR (IC50 ≈ 15 μM), but it revealed high potency against rat α9α10 nAChR (IC50 ≈ 200 nM). We conclude that oligoarginines and similar polycationic compounds effectively inhibiting α9α10 nAChR may serve as a basis for the development of analgesics to reduce neuropathic pain.
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Affiliation(s)
- Lucy O. Ojomoko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Elena V. Kryukova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Natalya S. Egorova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Arthur I. Salikhov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Lyubov A. Epifanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Daria A. Denisova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Alex R. Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Dmitry A. Sukhov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Alexander A. Vassilevski
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology (State University), Moscow, Russia
| | - Maxim A. Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia
| | - Victor I. Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Irina V. Shelukhina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
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2
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Stewart TM, Foley JR, Holbert CE, Khomutov M, Rastkari N, Tao X, Khomutov AR, Zhai RG, Casero RA. Difluoromethylornithine rebalances aberrant polyamine ratios in Snyder-Robinson syndrome. EMBO Mol Med 2023; 15:e17833. [PMID: 37702369 PMCID: PMC10630878 DOI: 10.15252/emmm.202317833] [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: 04/10/2023] [Revised: 08/18/2023] [Accepted: 08/30/2023] [Indexed: 09/14/2023] Open
Abstract
Snyder-Robinson syndrome (SRS) results from mutations in spermine synthase (SMS), which converts the polyamine spermidine into spermine. Affecting primarily males, common manifestations of SRS include intellectual disability, osteoporosis, hypotonia, and seizures. Symptom management is the only treatment. Reduced SMS activity causes spermidine accumulation while spermine levels are reduced. The resulting exaggerated spermidine:spermine ratio is a biochemical hallmark of SRS that tends to correlate with symptom severity. Our studies aim to pharmacologically manipulate polyamine metabolism to correct this imbalance as a therapeutic strategy for SRS. Here we report the repurposing of 2-difluoromethylornithine (DFMO), an FDA-approved inhibitor of polyamine biosynthesis, in rebalancing spermidine:spermine ratios in SRS patient cells. Mechanistic in vitro studies demonstrate that, while reducing spermidine biosynthesis, DFMO also stimulates the conversion of spermidine into spermine in hypomorphic SMS cells and induces uptake of exogenous spermine, altogether reducing the aberrant ratios. In a Drosophila SRS model characterized by reduced lifespan, DFMO improves longevity. As nearly all SRS patient mutations are hypomorphic, these studies form a strong foundation for translational studies with significant therapeutic potential.
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Affiliation(s)
- Tracy Murray Stewart
- Sidney Kimmel Comprehensive Cancer CenterJohns Hopkins School of MedicineBaltimoreMDUSA
| | - Jackson R Foley
- Sidney Kimmel Comprehensive Cancer CenterJohns Hopkins School of MedicineBaltimoreMDUSA
| | - Cassandra E Holbert
- Sidney Kimmel Comprehensive Cancer CenterJohns Hopkins School of MedicineBaltimoreMDUSA
| | - Maxim Khomutov
- Engelhardt Institute of Molecular BiologyRussian Academy of SciencesMoscowRussia
| | - Noushin Rastkari
- Sidney Kimmel Comprehensive Cancer CenterJohns Hopkins School of MedicineBaltimoreMDUSA
| | - Xianzun Tao
- Department of Molecular and Cellular PharmacologyUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Alex R Khomutov
- Engelhardt Institute of Molecular BiologyRussian Academy of SciencesMoscowRussia
| | - R Grace Zhai
- Department of Molecular and Cellular PharmacologyUniversity of Miami Miller School of MedicineMiamiFLUSA
| | - Robert A Casero
- Sidney Kimmel Comprehensive Cancer CenterJohns Hopkins School of MedicineBaltimoreMDUSA
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3
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Stewart TRM, Foley JR, Holbert CE, Khomutov MA, Rastkari N, Tao X, Khomutov AR, Zhai RG, Casero RA. Difluoromethylornithine rebalances aberrant polyamine ratios in Snyder-Robinson syndrome: mechanism of action and therapeutic potential. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.30.534977. [PMID: 37034775 PMCID: PMC10081208 DOI: 10.1101/2023.03.30.534977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Snyder-Robinson Syndrome (SRS) is caused by mutations in the spermine synthase (SMS) gene, the enzyme product of which converts the polyamine spermidine into spermine. Affecting primarily males, common manifestations of SRS include intellectual disability, osteoporosis, hypotonic musculature, and seizures, along with other more variable symptoms. Currently, medical management focuses on treating these symptoms without addressing the underlying molecular cause of the disease. Reduced SMS catalytic activity in cells of SRS patients causes the accumulation of spermidine, while spermine levels are reduced. The resulting exaggeration in spermidine-to-spermine ratio is a biochemical hallmark of SRS that tends to correlate with symptom severity in the patient. Our studies aim to pharmacologically manipulate polyamine metabolism to correct this polyamine imbalance and investigate the potential of this approach as a therapeutic strategy for affected individuals. Here we report the use of difluoromethylornithine (DFMO; eflornithine), an FDA-approved inhibitor of polyamine biosynthesis, in re-establishing normal spermidine-to-spermine ratios in SRS patient cells. Through mechanistic studies, we demonstrate that, while reducing spermidine biosynthesis, DFMO also stimulates the conversion of existing spermidine into spermine in cell lines with hypomorphic variants of SMS. Further, DFMO treatment induces a compensatory uptake of exogenous polyamines, including spermine and spermine mimetics, cooperatively reducing spermidine and increasing spermine levels. In a Drosophila SRS model characterized by reduced lifespan, adding DFMO to the feed extended lifespan. As nearly all known SRS patient mutations are hypomorphic, these studies form a foundation for future translational studies with significant therapeutic potential.
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4
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Al-Habsi M, Chamoto K, Matsumoto K, Nomura N, Zhang B, Sugiura Y, Sonomura K, Maharani A, Nakajima Y, Wu Y, Nomura Y, Menzies R, Tajima M, Kitaoka K, Haku Y, Delghandi S, Yurimoto K, Matsuda F, Iwata S, Ogura T, Fagarasan S, Honjo T. Spermidine activates mitochondrial trifunctional protein and improves antitumor immunity in mice. Science 2022; 378:eabj3510. [DOI: 10.1126/science.abj3510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Spermidine (SPD) delays age-related pathologies in various organisms. SPD supplementation overcame the impaired immunotherapy against tumors in aged mice by increasing mitochondrial function and activating CD8
+
T cells. Treatment of naïve CD8
+
T cells with SPD acutely enhanced fatty acid oxidation. SPD conjugated to beads bound to the mitochondrial trifunctional protein (MTP). In the MTP complex, synthesized and purified from
Escherichia coli
, SPD bound to the α and β subunits of MTP with strong affinity and allosterically enhanced their enzymatic activities. T cell–specific deletion of the MTP α subunit abolished enhancement of programmed cell death protein 1 (PD-1) blockade immunotherapy by SPD, indicating that MTP is required for SPD-dependent T cell activation.
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Affiliation(s)
- Muna Al-Habsi
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- National Genetic Center, Ministry of Health, Muscat, Oman
- Division of Integrated High-Order Regulatory Systems, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kenji Chamoto
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ken Matsumoto
- Department of Developmental Neurobiology, Institute of Development, Aging and Cancer, Tohoku University, Miyagi, Japan
| | - Norimichi Nomura
- Department of Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Baihao Zhang
- Laboratory for Mucosal Immunity, Center for Integrative Medical Sciences, RIKEN Yokohama Institute, Yokohama, Japan
| | - Yuki Sugiura
- Department of Biochemistry, Keio University, Tokyo, Japan
| | - Kazuhiro Sonomura
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Life Science Research Center, Technology Research Laboratory, Shimadzu Corporation, Kyoto, Japan
| | - Aprilia Maharani
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yuka Nakajima
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yibo Wu
- YCI Laboratory for Next-Generation Proteomics, Center for Integrative Medical Sciences, RIKEN Yokohama Institute, Yokohama, Japan
- Chemical Biology Mass Spectrometry Platform, Faculty of Science, University of Geneva, Geneva, Switzerland
| | - Yayoi Nomura
- Department of Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Rosemary Menzies
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masaki Tajima
- Division of Integrated High-Order Regulatory Systems, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koji Kitaoka
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yasuharu Haku
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sara Delghandi
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keiko Yurimoto
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - So Iwata
- Department of Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Toshihiko Ogura
- Department of Developmental Neurobiology, Institute of Development, Aging and Cancer, Tohoku University, Miyagi, Japan
| | - Sidonia Fagarasan
- Division of Integrated High-Order Regulatory Systems, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Laboratory for Mucosal Immunity, Center for Integrative Medical Sciences, RIKEN Yokohama Institute, Yokohama, Japan
| | - Tasuku Honjo
- Division of Immunology and Genomic Medicine, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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5
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Park MH, Kar RK, Banka S, Ziegler A, Chung WK. Post-translational formation of hypusine in eIF5A: implications in human neurodevelopment. Amino Acids 2022; 54:485-499. [PMID: 34273022 PMCID: PMC9117371 DOI: 10.1007/s00726-021-03023-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/15/2021] [Indexed: 01/04/2023]
Abstract
Hypusine [Nε-(4-amino-2-hydroxybutyl)lysine] is a derivative of lysine that is formed post-translationally in the eukaryotic initiation factor 5A (eIF5A). Its occurrence at a single site in one cellular protein defines hypusine synthesis as one of the most specific post-translational modifications. Synthesis of hypusine involves two enzymatic steps: first, deoxyhypusine synthase (DHPS) cleaves the 4-aminobutyl moiety of spermidine and transfers it to the ε-amino group of a specific lysine residue of the eIF5A precursor protein to form an intermediate, deoxyhypusine [Nε-(4-aminobutyl)lysine]. This intermediate is subsequently hydroxylated by deoxyhypusine hydroxylase (DOHH) to form hypusine in eIF5A. eIF5A, DHPS, and DOHH are highly conserved in all eukaryotes, and both enzymes exhibit a strict specificity toward eIF5A substrates. eIF5A promotes translation elongation globally by alleviating ribosome stalling and it also facilitates translation termination. Hypusine is required for the activity of eIF5A, mammalian cell proliferation, and animal development. Homozygous knockout of any of the three genes, Eif5a, Dhps, or Dohh, leads to embryonic lethality in mice. eIF5A has been implicated in various human pathological conditions. A recent genetic study reveals that heterozygous germline EIF5A variants cause Faundes-Banka syndrome, a craniofacial-neurodevelopmental malformations in humans. Biallelic variants of DHPS were identified as the genetic basis underlying a rare inherited neurodevelopmental disorder. Furthermore, biallelic DOHH variants also appear to be associated with neurodevelopmental disorder. The clinical phenotypes of these patients include intellectual disability, developmental delay, seizures, microcephaly, growth impairment, and/or facial dysmorphisms. Taken together, these findings underscore the importance of eIF5A and the hypusine modification pathway in neurodevelopment in humans.
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Affiliation(s)
- Myung Hee Park
- Molecular and Cellular Biochemistry Section, NIDCR, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - Rajesh Kumar Kar
- Molecular and Cellular Biochemistry Section, NIDCR, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Siddharth Banka
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Health Innovation Manchester, Manchester, M13 9WL, UK
| | - Alban Ziegler
- Department of Genetics, University of Angers, Angers, France
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6
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Li W, Wang L, Sun T, Tang H, Bui B, Cao D, Wang R, Chen W. Characterization of nanoparticles combining polyamine detection with photodynamic therapy. Commun Biol 2021; 4:803. [PMID: 34211094 PMCID: PMC8249666 DOI: 10.1038/s42003-021-02317-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 06/03/2021] [Indexed: 11/21/2022] Open
Abstract
Polyamine detection and depletion have been extensively investigated for cancer prevention and treatment. However, the therapeutic efficacy is far from satisfactory, mainly due to a polyamine compensation mechanism from the systemic circulation in the tumor environment. Herein, we explore a new solution for improving polyamine detection as well as a possible consumption therapy based on a new photosensitizer that can efficiently consume polyamines via an irreversible chemical reaction. The new photosensitizer is pyrrolopyrroleaza-BODIPY pyridinium salt (PPAB-PyS) nanoparticles that can react with the over-expressed polyamine in cancer cells and produce two photosensitizers with enhanced phototoxicity on cancer destruction. Meanwhile, PPAB-PyS nanoparticles provide a simultaneous ratiometric fluorescence imaging of intracellular polyamine. This combination polyamine consumption with a chemical reaction provides a new modality to enable polyamine detection along with photodynamic therapy as well as a putative depletion of polyamines for cancer treatment and prevention.
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Affiliation(s)
- Wenting Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Lingyun Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China.
| | - Tianlei Sun
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, SAR, China
| | - Hao Tang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, SAR, China
| | - Brian Bui
- Department of Physics, University of Texas at Arlington, Arlington, TX, USA
| | - Derong Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, SAR, China.
| | - Wei Chen
- Department of Physics, University of Texas at Arlington, Arlington, TX, USA.
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7
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Hyvönen MT, Khomutov M, Vepsäläinen J, Khomutov AR, Keinänen TA. α-Difluoromethylornithine-Induced Cytostasis is Reversed by Exogenous Polyamines, Not by Thymidine Supplementation. Biomolecules 2021; 11:biom11050707. [PMID: 34068700 PMCID: PMC8151227 DOI: 10.3390/biom11050707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 12/04/2022] Open
Abstract
Polyamine spermidine is essential for the proliferation of eukaryotic cells. Administration of polyamine biosynthesis inhibitor α-difluoromethylornithine (DFMO) induces cytostasis that occurs in two phases; the early phase which can be reversed by spermidine, spermine, and some of their analogs, and the late phase which is characterized by practically complete depletion of cellular spermidine pool. The growth of cells at the late phase can be reversed by spermidine and by very few of its analogs, including (S)-1-methylspermidine. It was reported previously (Witherspoon et al. Cancer Discovery 3(9); 1072–81, 2013) that DFMO treatment leads to depletion of cellular thymidine pools, and that exogenous thymidine supplementation partially prevents DFMO-induced cytostasis without affecting intracellular polyamine pools in HT-29, SW480, and LoVo colorectal cancer cells. Here we show that thymidine did not prevent DFMO-induced cytostasis in DU145, LNCaP, MCF7, CaCo2, BT4C, SV40MES13, HepG2, HEK293, NIH3T3, ARPE19 or HT-29 cell lines, whereas administration of functionally active mimetic of spermidine, (S)-1-methylspermidine, did. Thus, the effect of thymidine seems to be specific only for certain cell lines. We conclude that decreased polyamine levels and possibly also distorted pools of folate-dependent metabolites mediate the anti-proliferative actions of DFMO. However, polyamines are necessary and sufficient to overcome DFMO-induced cytostasis, while thymidine is generally not.
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Affiliation(s)
- Mervi T. Hyvönen
- Kuopio Campus, School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, Yliopistonranta 1C, 70210 Kuopio, Finland; (J.V.); (T.A.K.)
- Correspondence:
| | - Maxim Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, 119991 Moscow, Russia; (M.K.); (A.R.K.)
| | - Jouko Vepsäläinen
- Kuopio Campus, School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, Yliopistonranta 1C, 70210 Kuopio, Finland; (J.V.); (T.A.K.)
| | - Alex R. Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, 119991 Moscow, Russia; (M.K.); (A.R.K.)
| | - Tuomo A. Keinänen
- Kuopio Campus, School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, Yliopistonranta 1C, 70210 Kuopio, Finland; (J.V.); (T.A.K.)
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8
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Khomutov MA, Hyvönen MT, Salikhov AI, Chizhov AO, Ryzhov IM, Kochetkov SN, Vepsäläinen J, Keinänen TA, Khomutov AR. Synthesis of (3R,10R)- and (3S,10S)-Diastereomers of 3,10-Dimethylspermine. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1068162020060126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Murray Stewart T, Khomutov M, Foley JR, Guo X, Holbert CE, Dunston TT, Schwartz CE, Gabrielson K, Khomutov A, Casero RA. ( R, R)-1,12-Dimethylspermine can mitigate abnormal spermidine accumulation in Snyder-Robinson syndrome. J Biol Chem 2020; 295:3247-3256. [PMID: 31996374 DOI: 10.1074/jbc.ra119.011572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/21/2020] [Indexed: 11/06/2022] Open
Abstract
Snyder-Robinson syndrome (SRS) is an X-linked intellectual disability syndrome caused by a loss-of-function mutation in the spermine synthase (SMS) gene. Primarily affecting males, the main manifestations of SRS include osteoporosis, hypotonic stature, seizures, cognitive impairment, and developmental delay. Because there is no cure for SRS, treatment plans focus on alleviating symptoms rather than targeting the underlying causes. Biochemically, the cells of individuals with SRS accumulate excess spermidine, whereas spermine levels are reduced. We recently demonstrated that SRS patient-derived lymphoblastoid cells are capable of transporting exogenous spermine and its analogs into the cell and, in response, decreasing excess spermidine pools to normal levels. However, dietary supplementation of spermine does not appear to benefit SRS patients or mouse models. Here, we investigated the potential use of a metabolically stable spermine mimetic, (R,R)-1,12-dimethylspermine (Me2SPM), to reduce the intracellular spermidine pools of SRS patient-derived cells. Me2SPM can functionally substitute for the native polyamines in supporting cell growth while stimulating polyamine homeostatic control mechanisms. We found that both lymphoblasts and fibroblasts from SRS patients can accumulate Me2SPM, resulting in significantly decreased spermidine levels with no adverse effects on growth. Me2SPM administration to mice revealed that Me2SPM significantly decreases spermidine levels in multiple tissues. Importantly, Me2SPM was detectable in brain tissue, the organ most affected in SRS, and was associated with changes in polyamine metabolic enzymes. These findings indicate that the (R,R)-diastereomer of 1,12-Me2SPM represents a promising lead compound in developing a treatment aimed at targeting the molecular mechanisms underlying SRS pathology.
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Affiliation(s)
- Tracy Murray Stewart
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland 21287
| | - Maxim Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Jackson R Foley
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland 21287
| | - Xin Guo
- Department of Molecular and Comparative Pathobiology, Johns Hopkins School of Medicine, Baltimore, Maryland 21205
| | - Cassandra E Holbert
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland 21287
| | - Tiffany T Dunston
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland 21287
| | | | - Kathleen Gabrielson
- Department of Molecular and Comparative Pathobiology, Johns Hopkins School of Medicine, Baltimore, Maryland 21205
| | - Alexey Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Robert A Casero
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland 21287.
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10
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Khomutov M, Hyvönen MT, Simonian A, Formanovsky AA, Mikhura IV, Chizhov AO, Kochetkov SN, Alhonen L, Vepsäläinen J, Keinänen TA, Khomutov AR. Unforeseen Possibilities To Investigate the Regulation of Polyamine Metabolism Revealed by Novel C-Methylated Spermine Derivatives. J Med Chem 2019; 62:11335-11347. [PMID: 31765147 PMCID: PMC7076719 DOI: 10.1021/acs.jmedchem.9b01666] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Indexed: 12/02/2022]
Abstract
The biogenic polyamines, spermine (Spm) and spermidine, are organic polycations present in millimolar concentrations in all eukaryotic cells participating in the regulation of vital cellular functions including proliferation and differentiation. The design and biochemical evaluation of polyamine analogues are cornerstones of polyamine research. Here we synthesized and studied novel C-methylated Spm analogues: 2,11-dimethylspermine (2,11-Me2Spm), 3,10-dimethylspermine (3,10-Me2Spm), 2-methylspermine, and 2,2-dimethylspermine. The tested analogues overcame growth arrest induced by a 72 h treatment with α-difluoromethylornithine, an ornithine decarboxylase (ODC) inhibitor, and entered into DU145 cells via the polyamine transporter. 3,10-Me2Spm was a poor substrate of spermine oxidase and spermidine/spermine-N1-acetyltransferase (SSAT) when compared with 2,11-Me2Spm, thus resembling 1,12-dimethylspermine, which lacks the substrate properties required for the SSAT reaction. The antizyme (OAZ1)-mediated downregulation of ODC and inhibition of polyamine transport are crucial in the maintenance of polyamine homeostasis. Interestingly, 3,10-Me2Spm was found to be the first Spm analogue that did not induce OAZ1 and, consequently, was a weak downregulator of ODC activity in DU145 cells.
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Affiliation(s)
- Maxim Khomutov
- Engelhardt
Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Mervi T. Hyvönen
- School
of Pharmacy, Biocenter Kuopio, University
of Eastern Finland, P.O. Box 1627, Kuopio 70211, Finland
| | - Alina Simonian
- Engelhardt
Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | | | - Irina V. Mikhura
- Shemyakin-Ovchinnikov
Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow 117997, Russia
| | - Alexander O. Chizhov
- N.D.
Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
| | - Sergey N. Kochetkov
- Engelhardt
Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Leena Alhonen
- School
of Pharmacy, Biocenter Kuopio, University
of Eastern Finland, P.O. Box 1627, Kuopio 70211, Finland
| | - Jouko Vepsäläinen
- School
of Pharmacy, Biocenter Kuopio, University
of Eastern Finland, P.O. Box 1627, Kuopio 70211, Finland
| | - Tuomo A. Keinänen
- School
of Pharmacy, Biocenter Kuopio, University
of Eastern Finland, P.O. Box 1627, Kuopio 70211, Finland
| | - Alex R. Khomutov
- Engelhardt
Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
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11
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Khomutov MA, Mikhura IV, Kochetkov SN, Khomutov AR. C-Methylated Analogs of Spermine and Spermidine: Synthesis and Biological Activity. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2019. [DOI: 10.1134/s1068162019060207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Activation of Polyamine Catabolism by N¹,N 11-Diethylnorspermine in Hepatic HepaRG Cells Induces Dedifferentiation and Mesenchymal-Like Phenotype. Cells 2018; 7:cells7120275. [PMID: 30567412 PMCID: PMC6316793 DOI: 10.3390/cells7120275] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/10/2018] [Accepted: 12/15/2018] [Indexed: 12/24/2022] Open
Abstract
Tumorigenesis is accompanied by the metabolic adaptation of cells to support enhanced proliferation rates and to optimize tumor persistence and amplification within the local microenvironment. In particular, cancer cells exhibit elevated levels of biogenic polyamines. Inhibitors of polyamine biosynthesis and inducers of their catabolism have been evaluated as antitumor drugs, however, their efficacy and safety remain controversial. Our goal was to investigate if drug-induced modulation of polyamine metabolism plays a role in dedifferentiation using differentiated human hepatocyte-like HepaRG cell cultures. N1,N11-diethylnorspermine (DENSpm), a potent inducer of polyamine catabolism, triggered an epithelial-mesenchymal transition (EMT)-like dedifferentiation in HepaRG cultures, as shown by down-regulation of mature hepatocytes markers and upregulation of classical EMT markers. Albeit the fact that polyamine catabolism produces H2O2, DENSpm-induced de-differentiation was not affected by antioxidants. Use of a metabolically stable spermidine analogue showed furthermore, that spermidine is a key regulator of hepatocyte differentiation. Comparative transcriptome analyses revealed, that the DENSpm-triggered dedifferentiation of HepaRG cells was accompanied by dramatic metabolic adaptations, exemplified by down-regulation of the genes of various metabolic pathways and up-regulation of the genes involved in signal transduction pathways. These results demonstrate that polyamine metabolism is tightly linked to EMT and differentiation of liver epithelial cells.
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13
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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: 104] [Impact Index Per Article: 17.3] [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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14
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Keinänen TA, Grigorenko N, Khomutov AR, Huang Q, Uimari A, Alhonen L, Hyvönen MT, Vepsäläinen J. Controlling the regioselectivity and stereospecificity of FAD-dependent polyamine oxidases with the use of amine-attached guide molecules as conformational modulators. Biosci Rep 2018; 38:BSR20180527. [PMID: 30006473 PMCID: PMC6131205 DOI: 10.1042/bsr20180527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 07/03/2018] [Accepted: 07/05/2018] [Indexed: 01/03/2023] Open
Abstract
Enzymes generally display strict stereospecificity and regioselectivity for their substrates. Here by using FAD-dependent human acetylpolyamine oxidase (APAO), human spermine (Spm) oxidase (SMOX) and yeast polyamine oxidase (Fms1), we demonstrate that these fundamental properties of the enzymes may be regulated using simple guide molecules, being either covalently attached to polyamines or used as a supplement to the substrate mixtures. APAO, which naturally metabolizes achiral N1-acetylated polyamines, displays aldehyde-controllable stereospecificity with chiral 1-methylated polyamines, like (R)- and (S)-1-methylspermidine (1,8-diamino-5-azanonane) (1-MeSpd). Among the novel N1-acyl derivatives of MeSpd, isonicotinic acid (P4) or benzoic acid (Bz) with (R)-MeSpd had Km of 3.6 ± 0.6/1.2 ± 0.7 µM and kcat of 5.2 ± 0.6/4.6 ± 0.7 s-1 respectively, while N1 -AcSpd had Km 8.2 ± 0.4 µM and kcat 2.7 ± 0.0 s-1 On the contrary, corresponding (S)-MeSpd amides were practically inactive (kcat < 0.03 s-1) but they retained micromole level Km for APAO. SMOX did not metabolize any of the tested compounds (kcat < 0.05 s-1) that acted as non-competitive inhibitors having Ki ≥ 155 µM for SMOX. In addition, we tested (R,R)-1,12-bis-methylspermine (2,13-diamino-5,10-diazatetradecane) (R,R)-(Me2Spm) and (S,S)-Me2Spm as substrates for Fms1. Fms1 preferred (S,S)- to (R,R)-diastereoisomer, but with notably lower kcat in comparison with spermine. Interestingly, Fms1 was prone to aldehyde supplementation in its regioselectivity, i.e. the cleavage site of spermidine. Thus, aldehyde supplementation to generate aldimines or N-terminal substituents in polyamines, i.e. attachment of guide molecule, generates novel ligands with altered charge distribution changing the binding and catalytic properties with polyamine oxidases. This provides means for exploiting hidden capabilities of polyamine oxidases for controlling their regioselectivity and stereospecificity.
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Affiliation(s)
- Tuomo A Keinänen
- School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, Kuopio FI-70211, Finland
| | - Nikolay Grigorenko
- BASF Schweiz AG, Dispersions and Pigments Division, Klybeckstrasse 141, P.O. Box CH 4002, Basel, Switzerland
| | - Alex R Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St 32, Moscow 119991, Russia
| | - Qingqiu Huang
- MacCHESS at the Cornell High Energy Synchrotron Source, Cornell University Ithaca, NY 14853-8001, U.S.A
| | - Anne Uimari
- Natural Resources Institute Finland, Natural Resources Division, Neulaniementie 5, Kuopio FI-70210, Finland
| | - Leena Alhonen
- School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, Kuopio FI-70211, Finland
| | - Mervi T Hyvönen
- School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, Kuopio FI-70211, Finland
| | - Jouko Vepsäläinen
- School of Pharmacy, Biocenter Kuopio, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, Kuopio FI-70211, Finland
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15
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Ucal S, Häkkinen MR, Alanne AL, Alhonen L, Vepsäläinen J, Keinänen TA, Hyvönen MT. Controlling of N-alkylpolyamine analogue metabolism by selective deuteration. Biochem J 2018; 475:663-676. [PMID: 29301981 DOI: 10.1042/bcj20170887] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/27/2017] [Accepted: 01/03/2018] [Indexed: 01/26/2023]
Abstract
Replacing protium with deuterium is an efficient method to modulate drug metabolism. N-alkylated polyamine analogues are polyamine antimetabolites with proven anticancer efficacy. We have characterized earlier the preferred metabolic routes of N1,N12-diethylspermine (DESpm), N1-benzyl-N12-ethylspermine (BnEtSpm) and N1,N12-dibenzylspermine (DBSpm) by human recombinant spermine oxidase (SMOX) and acetylpolyamine oxidase (APAO). Here, we studied the above analogues, their variably deuterated counterparts and their metabolites as substrates and inhibitors of APAO, SMOX, semicarbazide-sensitive amine oxidase (SSAO), diamine oxidase (DAO) and monoamine oxidases. We found that targeted deuteration efficiently redirected the preferable cleavage site and suppressed reaction rate by APAO and SMOX in vitro We found a three- to six-fold decline in Vmax with moderate variable effect on Km when deuterium was located at the preferred hydrogen abstraction site of the analogue. We also found some of the metabolites to be potent inhibitors of DAO and SSAO. Surprisingly, analogue deuteration did not markedly alter the anti-proliferative efficacy of the drugs in DU145 prostate cancer cells, while in mouse embryonic fibroblasts, which had higher basal APAO and SMOX activities, moderate effect was observed. Interestingly, the anti-proliferative efficacy of the analogues did not correlate with their ability to suppress polyamine biosynthetic enzymes, induce spermidine/spermine-N1-acetyltransferase or deplete intracellular polyamine levels, but correlated with their ability to induce SMOX. Our data show that selective deuteration of N-alkyl polyamine analogues enables metabolic switching, offering the means for selective generation of bioactive metabolites inhibiting, e.g. SSAO and DAO, thus setting a novel basis for in vivo studies of this class of analogues.
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Affiliation(s)
- Sebahat Ucal
- School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, Yliopistonranta 1B, FI-70210 Kuopio, Finland
| | - Merja R Häkkinen
- School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, Yliopistonranta 1B, FI-70210 Kuopio, Finland
| | - Aino-Liisa Alanne
- School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, Yliopistonranta 1B, FI-70210 Kuopio, Finland
| | - Leena Alhonen
- School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, Yliopistonranta 1B, FI-70210 Kuopio, Finland
| | - Jouko Vepsäläinen
- School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, Yliopistonranta 1B, FI-70210 Kuopio, Finland
| | - Tuomo A Keinänen
- School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, Yliopistonranta 1B, FI-70210 Kuopio, Finland
| | - Mervi T Hyvönen
- School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, Yliopistonranta 1B, FI-70210 Kuopio, Finland
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16
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Takao K, Sugita Y. Pentamine as a Substrate for Measuring Spermine Oxidase Activity. Methods Mol Biol 2018; 1694:149-154. [PMID: 29080165 DOI: 10.1007/978-1-4939-7398-9_15] [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] [Indexed: 06/07/2023]
Abstract
A method for determining spermine oxidase activity is described using the pentamine 1,16-diamino-4,8,13-triazahexadecane (3343) as the substrate, coupled with o-phthalaldehyde-post-label ion-exchange HPLC. The synthesis of 3343 is also described.
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Affiliation(s)
- Koichi Takao
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Keyaki-dai, Saitama, 350-0295, Japan.
| | - Yoshiaki Sugita
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Keyaki-dai, Saitama, 350-0295, Japan
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17
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Hussain T, Tan B, Ren W, Rahu N, Kalhoro DH, Yin Y. Exploring polyamines: Functions in embryo/fetal development. ACTA ACUST UNITED AC 2016; 3:7-10. [PMID: 29767087 PMCID: PMC5941083 DOI: 10.1016/j.aninu.2016.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/11/2016] [Accepted: 12/15/2016] [Indexed: 11/28/2022]
Abstract
Polyamines such as putrescine, spermidine, spermine and agmatine are aliphatic polycationic compounds present in all living cells, and are derived from amino acids, intestinal bacteria, exfoliated enterocytes and supported from diet. Polyamines as the key compounds play essential role in cell proliferation, growth and differentiation. They also exert significant effects on embryonic development, implantation, embryonic diapause, placentation, angiogensis and fetal development. This review paper summarizes the functions of polyamines and embryo/fetus development and its regulatory mechanism which should help to provide some evidences for clinic.
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Affiliation(s)
- Tarique Hussain
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,University of Chinese Academy of Sciences, Beijing 10008, China
| | - Bi'e Tan
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, Hunan Collaborative Innovation Center of Animal Production Safety, Changsha 410000, China
| | - Wenkai Ren
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,University of Chinese Academy of Sciences, Beijing 10008, China
| | - Najma Rahu
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam 70050, Pakistan
| | - Dildar Hussain Kalhoro
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam 70050, Pakistan
| | - Yulong Yin
- National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha 410125, China.,University of Chinese Academy of Sciences, Beijing 10008, China
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18
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19
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Ser/Thr kinases and polyamines in the regulation of non-canonical functions of elongation factor 1A. Amino Acids 2016; 48:2339-52. [DOI: 10.1007/s00726-016-2311-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 08/08/2016] [Indexed: 10/21/2022]
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20
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Khomutov MA, Simonian AR, Weisell J, Vepsalainen J, Kochetkov SN, Khomutov AR. Novel hydroxylamine-containing analogues of 1-guanidino-7-aminoheptane (GC7), an effective inhibitor of deoxyhypusine synthase. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1068162016040099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Grigorenko NA, Khomutov MA, Simonian AR, Kochetkov SN, Khomutov AR. Synthesis of 2,11-bis(methylidene)spermine, a new inhibitor of spermine oxidase. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1068162016030080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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Triethylenetetramine modulates polyamine and energy metabolism and inhibits cancer cell proliferation. Biochem J 2016; 473:1433-41. [DOI: 10.1042/bcj20160134] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 03/21/2016] [Indexed: 11/17/2022]
Abstract
Copper chelators show anticancer effects by preventing neo-angiogenesis. In the present study, we show that triethylenetetramine (TETA) is a multi-targeting drug, which modulates several key regulatory proteins of polyamine metabolism that contributes to its anticancer effect.
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23
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Khomutov MA, Keinanen TA, Hyvonen MT, Weisell J, Vepsalainen J, Alhonen L, Kochetkov SN, Khomutov AR. [Enantioselective Synthesis of (R)- and (S)-3-Methylspermidines]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2016; 41:612-8. [PMID: 26762100 DOI: 10.1134/s1068162015050064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Earlier unknown enantiomerically pure (R)- and (S)-1,8-diamino-3-methyl-4-azaoctane's (3-MeSpd's) were synthesized with high overall yields and optical purity starting from commercially available R- and S-isomers of N-Boc-2-aminopropanol-1. Application of R- and S-isomers of 3-MeSpd for the investigation of the stereospecificity of spermidine transporter and peculiarities of deoxyhypusine synthase reaction are discussed.
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24
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Hyvönen MT, Khomutov M, Petit M, Weisell J, Kochetkov SN, Alhonen L, Vepsäläinen J, Khomutov AR, Keinänen TA. Enantiomers of 3-methylspermidine selectively modulate deoxyhypusine synthesis and reveal important determinants for spermidine transport. ACS Chem Biol 2015; 10:1417-24. [PMID: 25689365 DOI: 10.1021/cb500938e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Eukaryotic translation initiation factor 5A (eIF5A) is essential for cell proliferation, becoming functionally active only after post-translational conversion of a specific Lys to hypusine [N(ε)-(4-amino-2-hydroxybutyl)lysine]. Deoxyhypusine synthase (DHS) is the rate-limiting enzyme of this two-step process, and the polyamine spermidine is the only natural donor of the butylamine group for this reaction, which is very conserved-hypusine biosynthesis suffers last when the intracellular spermidine pool is depleted. DHS has a very strict substrate specificity, and only a few spermidine analogs are substrates of the enzyme and can support long-term growth of spermidine-depleted cells. Herein, we compared the biological properties of earlier unknown enantiomers of 3-methylspermidine (3-MeSpd) in deoxyhypusine synthesis, in supporting cell growth and in polyamine transport. Long-term treatment of DU145 cells with α-difluoromethylornithine (inhibitor of polyamine biosynthesis) and (R)-3-MeSpd did not cause depletion of hypusinated eIF5A, and the cells were still able to grow, whereas the combination of α-difluoromethylornithine with a racemate or (S)-3-MeSpd caused cessation of cell growth. Noticeably, DHS preferred the (R)- over the (S)-enantiomer as a substrate. (R)-3-MeSpd competed with [(14)C]-labeled spermidine for cellular uptake less efficiently than the (S)-3-MeSpd (Ki = 141 μM vs 19 μM, respectively). The cells treated with racemic 3-MeSpd accumulated intracellularly mainly (S)-3-MeSpd, but not DHS substrate (R)-3-MeSpd, explaining the inability of the racemate to support long-term growth. The distinct properties of 3-MeSpd enantiomers can be exploited in designing polyamine uptake inhibitors, facilitating drug delivery and modulating deoxyhypusine synthesis.
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Affiliation(s)
- Mervi T Hyvönen
- †School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Maxim Khomutov
- ‡Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Marine Petit
- §Université Paris Diderot - Paris, U.F.R. Sciences du Vivant, 35 rue Hélène Brion, 75205 Paris CEDEX 13, France
| | - Janne Weisell
- †School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Sergey N Kochetkov
- ‡Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Leena Alhonen
- †School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Jouko Vepsäläinen
- †School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Alex R Khomutov
- ‡Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Tuomo A Keinänen
- †School of Pharmacy, University of Eastern Finland, Biocenter Kuopio, P.O. Box 1627, FI-70211 Kuopio, Finland
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25
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Depletion of the polyamines spermidine and spermine by overexpression of spermidine/spermine N¹-acetyltransferase 1 (SAT1) leads to mitochondria-mediated apoptosis in mammalian cells. Biochem J 2015; 468:435-47. [PMID: 25849284 DOI: 10.1042/bj20150168] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/07/2015] [Indexed: 12/16/2022]
Abstract
The polyamines putrescine, spermidine and spermine are intimately involved in the regulation of cellular growth and viability. Transduction of human embryonic kidney (HEK) 293T cells with an adenovirus encoding a key polyamine catabolic enzyme, spermidine N¹-acetyltransferase 1 (SSAT1)/SAT1 (AdSAT1), leads to a rapid depletion of spermidine and spermine, arrest in cell growth and a decline in cell viability. Annexin V/propidium iodide FACS analyses, terminal uridine nucleotide end-labelling (TUNEL) and caspase 3 assays showed a clear indication of apoptosis in AdSAT1-transduced cells (at 24-72 h), but not in cells transduced with GFP-encoding adenovirus (AdGFP). Apoptosis in the polyamine-depleted cells occurs by the mitochondrial intrinsic pathway, as evidenced by loss of mitochondrial membrane potential, increase in pro-apoptotic Bax, decrease in anti-apoptotic Bcl-xl, Bcl2 and Mcl-1 and release of cytochrome c from mitochondria, upon transduction with AdSAT1. Moreover, TEM images of AdSAT1-transduced cells revealed morphological changes commonly associated with apoptosis, including cell shrinkage, nuclear fragmentation, mitochondrial alteration, vacuolization and membrane blebbing. The apoptosis appears to result largely from depletion of the polyamines spermidine and spermine, as the polyamine analogues α-methylspermidine (α-MeSpd) and N¹,N¹²-dimethylspermine (Me₂Spm) that are not substrates for SAT1 could partially restore growth and prevent apoptosis of AdSAT1-transduced cells. Inhibition of polyamine oxidases did not restore the growth of AdSAT1-transduced cells or block apoptosis, suggesting that the growth arrest and apoptosis were not induced by oxidative stress resulting from accelerated polyamine catabolism. Taken together, these data provide strong evidence that the depletion of the polyamines spermidine and spermine leads to mitochondria-mediated apoptosis.
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26
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Park MH, Igarashi K. Polyamines and their metabolites as diagnostic markers of human diseases. Biomol Ther (Seoul) 2014; 21:1-9. [PMID: 24009852 PMCID: PMC3762300 DOI: 10.4062/biomolther.2012.097] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 01/04/2013] [Indexed: 01/31/2023] Open
Abstract
Polyamines, putrescine, spermidine and spermine, are ubiquitous in living cells and are essential for eukaryotic cell growth. These polycations interact with negatively charged molecules such as DNA, RNA, acidic proteins and phospholipids and modulate various cellular functions including macromolecular synthesis. Dysregulation of the polyamine pathway leads to pathological conditions including cancer, inflammation, stroke, renal failure and diabetes. Increase in polyamines and polyamine synthesis enzymes is often associated with tumor growth, and urinary and plasma contents of polyamines and their metabolites have been investigated as diagnostic markers for cancers. Of these, diacetylated derivatives of spermidine and spermine are elevated in the urine of cancer patients and present potential markers for early detection. Enhanced catabolism of cellular polyamines by polyamine oxidases (PAO), spermine oxidase (SMO) or acetylpolyamine oxidase (AcPAO), increases cellular oxidative stress and generates hydrogen peroxide and a reactive toxic metabolite, acrolein, which covalently incorporates into lysine residues of cellular proteins. Levels of protein-conjuagated acrolein (PC-Acro) and polyamine oxidizing enzymes were increased in the locus of brain infarction and in plasma in a mouse model of stroke and also in the plasma of stroke patients. When the combined measurements of PC-Acro, interleukin 6 (IL-6), and C-reactive protein (CRP) were evaluated, even silent brain infarction (SBI) was detected with high sensitivity and specificity. Considering that there are no reliable biochemical markers for early stage of stroke, PC-Acro and PAOs present promising markers. Thus the polyamine metabolites in plasma or urine provide useful tools in early diagnosis of cancer and stroke.
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Affiliation(s)
- Myung Hee Park
- Oral and Pharyngeal Cancer Branch, NIDCR, National Institutes of Health, Bethesda, MD, 20892, USA
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27
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Keinänen TA, Hyvönen MT, Alhonen L, Vepsäläinen J, Khomutov AR. Selective regulation of polyamine metabolism with methylated polyamine analogues. Amino Acids 2013; 46:605-20. [PMID: 24022706 DOI: 10.1007/s00726-013-1587-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 08/27/2013] [Indexed: 12/18/2022]
Abstract
Polyamine metabolism is intimately linked to the physiological state of the cell. Low polyamines levels promote growth cessation, while increased concentrations are often associated with rapid proliferation or cancer. Delicately balanced biosynthesis, catabolism, uptake and excretion are very important for maintaining the intracellular polyamine homeostasis, and deregulated polyamine metabolism is associated with imbalanced metabolic red/ox state. Although many cellular targets of polyamines have been described, the precise molecular mechanisms in these interactions are largely unknown. Polyamines are readily interconvertible which complicate studies on the functions of the individual polyamines. Thus, non-metabolizable polyamine analogues, like carbon-methylated analogues, are needed to circumvent that problem. This review focuses on methylated putrescine, spermidine and spermine analogues in which at least one hydrogen atom attached to polyamine carbon backbone has been replaced by a methyl group. These analogues allow the regulation of both metabolic and catabolic fates of the parent molecule. Substituting the natural polyamines with methylated analogue(s) offers means to study either the functions of an individual polyamine or the effects of altered polyamine metabolism on cell physiology. In general, gem-dimethylated analogues are considered to be non-metabolizable by polyamine catabolizing enzymes spermidine/spermine-N¹-acetyltransferase and acetylpolyamine oxidase and they support short-term cellular proliferation in many experimental models. Monomethylation renders the analogues chiral, offering some advantage over gem-dimethylated analogues in the specific regulation of polyamine metabolism. Thus, methylated polyamine analogues are practical tools to meet existing biological challenges in solving the physiological functions of polyamines.
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Spermidine promotes adipogenesis of 3T3-L1 cells by preventing interaction of ANP32 with HuR and PP2A. Biochem J 2013; 453:467-74. [DOI: 10.1042/bj20130263] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We have shown previously that the polyamine spermidine is indispensable for differentiation of 3T3-L1 preadipocytes. In the present study, we examined the mechanism of spermidine function by using the polyamine biosynthesis inhibitor α-difluoromethylornithine in combination with the metabolically stable polyamine analogues γ-methylspermidine or (R,R)-α,ω-bismethylspermine. At the early phase of differentiation, spermidine-depleted 3T3-L1 cells showed decreased translation of the transcription factor C/EBPβ (CCAAT/enhancer-binding protein β), decreased PP2A (protein phosphatase 2A) activity and increased cytoplasmic localization of the RNA-binding protein HuR (human antigen R). The amount of HuR bound to C/EBPβ mRNA was reduced, whereas the amount of bound CUGBP2, an inhibitor of C/EBPβ translation, was increased. ANP32 (acidic nuclear phosphoprotein 32) proteins, which are known PP2A inhibitors and HuR ligands, bound more PP2A and HuR in spermidine-depleted than in control cells, whereas immunodepletion of ANP32 proteins from the lysate of spermidine-depleted cells restored PP2A activity. Taken together, our data shows that spermidine promotes C/EBPβ translation in differentiating 3T3-L1 cells, and that this process is controlled by the interaction of ANP32 with HuR and PP2A.
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Depletion of cellular polyamines, spermidine and spermine, causes a total arrest in translation and growth in mammalian cells. Proc Natl Acad Sci U S A 2013; 110:2169-74. [PMID: 23345430 DOI: 10.1073/pnas.1219002110] [Citation(s) in RCA: 186] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The polyamines, putrescine, spermidine, and spermine, are essential polycations, intimately involved in the regulation of cellular proliferation. Although polyamines exert dynamic effects on the conformation of nucleic acids and macromolecular synthesis in vitro, their specific functions in vivo are poorly understood. We investigated the cellular function of polyamines by overexpression of a key catabolic enzyme, spermidine/spermine N(1)-acetyltransferase 1 (SAT1) in mammalian cells. Transient cotransfection of HeLa cells with GFP and SAT1 vectors suppressed GFP protein expression without lowering its mRNA level, an indication that the block in GFP expression was not at transcription, but at translation. Fluorescence single-cell imaging also revealed specific inhibition of endogenous protein synthesis in the SAT1 overexpressing cells, without any inhibition of synthesis of DNA or RNA. Overexpression of SAT1 using a SAT1 adenovirus led to rapid depletion of cellular spermidine and spermine, total inhibition of protein synthesis, and growth arrest within 24 h. The SAT1 effect is most likely due to depletion of spermidine and spermine, because stable polyamine analogs that are not substrates for SAT1 restored GFP and endogenous protein synthesis. Loss of polysomes with increased 80S monosomes in the polyamine-depleted cells suggests a direct role for polyamines in translation initiation. Our data provide strong evidence for a primary function of polyamines, spermidine and spermine, in translation in mammalian cells.
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Takao K, Shirahata A, Samejima K, Casero RA, Igarashi K, Sugita Y. Pentamines as substrate for human spermine oxidase. Biol Pharm Bull 2013; 36:407-11. [PMID: 23449327 PMCID: PMC3602902 DOI: 10.1248/bpb.b12-00818] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Substrate activities of various linear polyamines to human spermine oxidase (hSMO) were investigated. The activities were evaluated by monitoring the amount of H2O2 released from sample polyamines by hSMO. H2O2 was measured by a HPLC method that analyzed fluorescent dimers derived from the oxidation of homovanillic acid in the presence of horseradish peroxidase. Six triamines were tested and were found not to be hSMO substrates. Of sixteen tetramines tested, spermine (Spm) was the most active substrate, followed by homospermine and N-butylated Spm. Pentamines showed a characteristic pattern of substrate activity. Of thirteen pentamines tested, 3343 showed higher substrate activity than Spm, and 4343 showed similar activity to Spm. The activities of the other pentamines were as follows: 3443, 4443, 4344, 3344, 4334, 4444, and 3334 (in decreasing order). Product amines released from these pentamines by hSMO were then analyzed by HPLC. Triamine was the only observed product, and the amount of triamine was nearly equivalent to that of released H2O2. A marked difference in the pH dependency curves between tetramines and pentamines suggested that hSMO favored reactions with a non-protonated secondary nitrogen at the cleavage site. The Km and Vmax values for Spm and 3343 at pH 7.0 and 9.0 were consistent with the higher substrate activity of 3343 compared to Spm, as well as with the concept of a non-protonated secondary nitrogen at the cleavage site being preferred, and 3343 was well degraded at a physiological pH by hSMO.
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Affiliation(s)
- Koichi Takao
- Laboratory of Bioorganic Chemistry, Department of Pharmaceutical Technochemistry, Josai University, 1–1 Keyaki-dai, Sakado, Saitama 350–0295, Japan.
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Hyvönen MT, Keinänen TA, Khomutov M, Simonian A, Vepsäläinen J, Park JH, Khomutov AR, Alhonen L, Park MH. Effects of novel C-methylated spermidine analogs on cell growth via hypusination of eukaryotic translation initiation factor 5A. Amino Acids 2012; 42:685-95. [PMID: 21861168 PMCID: PMC3223563 DOI: 10.1007/s00726-011-0984-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 05/17/2011] [Indexed: 12/13/2022]
Abstract
The polyamines, putrescine, spermidine, and spermine, are ubiquitous multifunctional cations essential for cellular proliferation. One specific function of spermidine in cell growth is its role as a butylamine donor for hypusine synthesis in the eukaryotic initiation factor 5A (eIF5A). Here, we report the ability of novel mono-methylated spermidine analogs (α-MeSpd, β-MeSpd, γ-MeSpd, and ω-MeSpd) to function in the hypusination of eIF5A and in supporting the growth of DFMO-treated DU145 cells. We also tested them as substrates and inhibitors for deoxyhypusine synthase (DHS) in vitro. Of these compounds, α-MeSpd, β-MeSpd, and γ-MeSpd (but not ω-MeSpd) were substrates for DHS in vitro, while they all inhibited the enzyme reaction. As racemic mixtures, only α-MeSpd and β-MeSpd supported long-term growth (9-18 days) of spermidine-depleted DU145 cells, whereas γ-MeSpd and ω-MeSpd did not. The S-enantiomer of α-MeSpd, which supported long-term growth, was a good substrate for DHS in vitro, whereas the R-isomer was not. The long-term growth of DFMO-treated cells correlated with the hypusine modification of eIF5A by intracellular methylated spermidine analogs. These results underscore the critical requirement for hypusine modification in mammalian cell proliferation and provide new insights into the specificity of the deoxyhypusine synthase reaction.
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Affiliation(s)
- Mervi T. Hyvönen
- A.I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Tuomo A. Keinänen
- Department of Biosciences, Laboratory of Chemistry, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Maxim Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Alina Simonian
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Jouko Vepsäläinen
- Department of Biosciences, Laboratory of Chemistry, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Jong Hwan Park
- Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Alex R. Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov Street 32, Moscow 119991, Russia
| | - Leena Alhonen
- A.I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Eastern Finland, Kuopio Campus, P.O. Box 1627, FI-70211 Kuopio, Finland
| | - Myung Hee Park
- Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA
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Abstract
The polyamines are ubiquitous polycationic compounds. Over the past 40 yr, investigation has shown that some of these, namely spermine, spermidine, and putrescine, are essential to male and female reproductive processes and to embryo/fetal development. Indeed, their absence is characterized by infertility and arrest in embryogenesis. Mammals synthesize polyamines de novo from amino acids or import these compounds from the diet. Information collected recently has shown that polyamines are essential regulators of cell growth and gene expression, and they have been implicated in both mitosis and meiosis. In male reproduction, polyamine expression correlates with stages of spermatogenesis, and polyamines appear to function in promoting sperm motility. There is evidence for polyamine involvement in ovarian follicle development and ovulation in female mammals, and polyamine synthesis is required for steroidogenesis in the ovary. Studies of the embryo indicate a polyamine requirement that can be met from maternal sources before implantation, whereas elimination of polyamine synthesis abrogates embryo development at gastrulation. Polyamines play roles in embryo implantation, in decidualization, and in placental formation and function, and polyamine privation during gestation results in intrauterine growth retardation. Emerging information implicates dietary arginine and dietary polyamines as nutritional regulators of fertility. The mechanisms by which polyamines regulate these multiple and diverse processes are not yet well explored; thus, there is fertile ground for further productive investigation.
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Affiliation(s)
- Pavine L C Lefèvre
- Centre de Recherche en Reproduction Animale, Faculté de Médecine Vétérinaire, Université de Montréal, 3200 rue Sicotte, Saint-Hyacinthe, Canada QC J2S 2M2
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Spermidine may decrease ER stress in pancreatic beta cells and may reduce apoptosis via activating AMPK dependent autophagy pathway. Med Hypotheses 2011; 77:677-9. [DOI: 10.1016/j.mehy.2011.07.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Revised: 06/24/2011] [Accepted: 07/04/2011] [Indexed: 11/23/2022]
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Mandal S, Khomutov MA, Simonian AR, Kochetkov SN, Madhubala R. Leishmania donovani: Structural insignt in the recognition of C-methylated analogues of spermidine as natural polyamines. Mol Biol 2011. [DOI: 10.1134/s002689331104008x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pegg AE, Wang X. Mouse models to investigate the function of spermine. Commun Integr Biol 2011; 2:271-4. [PMID: 19641749 DOI: 10.4161/cib.2.3.8225] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Accepted: 02/17/2009] [Indexed: 11/19/2022] Open
Abstract
Many functions have been ascribed to polyamines, but there has been no clear identification of a unique role for spermine. The Gy mouse has a deletion of part of the X chromosome that includes the SMS gene encoding spermine synthase. Tissues from male Gy mice have no spermine but increased spermidine. They have multiple abnormalities including a tendency to sudden death, small size, circling behavior and other neurological symptoms, sterility and deafness. These changes are reversed by breeding with mice expressing a spermine synthase transgene. Detailed studies of hearing in Gy mice show that the absence of spermine synthase leads to loss of the endocochlear potential. Since this potential requires the cochlear lateral wall-specific Kir4.1 channel, regulation by spermine of transport via these channels appears to be an essential function. A similar spermine-related defect in the functioning of cardiac Kir channels could account for arrhythmias leading to sudden death. The effect of the absence of spermine on glutamate receptor ion channels in the brain may account for the neurological symptoms and could contribute to the lack of fertility and normal growth but more direct effects on gene expression are also possible. Advantages and limitations of the Gy model are discussed.
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Affiliation(s)
- Anthony E Pegg
- Department of Cellular and Molecular Physiology; Milton S. Hershey Medical Center; Pennsylvania State University College of Medicine; Hershey, PA USA
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36
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Hyvönen MT, Keinänen TA, Khomutov M, Simonian A, Weisell J, Kochetkov SN, Vepsäläinen J, Alhonen L, Khomutov AR. The use of novel C-methylated spermidine derivatives to investigate the regulation of polyamine metabolism. J Med Chem 2011; 54:4611-8. [PMID: 21639123 DOI: 10.1021/jm200293r] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The polyamines are organic polycations present at millimolar concentrations in eukaryotic cells where they participate in the regulation of vital cellular functions including proliferation and differentiation. Biological evaluation of rationally designed polyamine analogs is one of the cornerstones of polyamine research. Here we have synthesized and characterized novel C-methylated spermidine analogs, that is, 2-methylspermidine, 3-methylspermidine, and 8-methylspermidine. 3-Methylspermidine was found to be metabolically stable in DU145 cells, while 8-methylspermidine was a substrate for spermidine/spermine N(1)-acetyltransferase (SSAT) and 2-methylspermidine was a substrate for both SSAT and acetylpolyamine oxidase. All the analogs induced the splicing of the productive mRNA splice variant of SSAT, overcame growth arrest induced by 72-h treatment with ornithine decarboxylase (ODC) inhibitor α-difluoromethylornithine, and were transported via the polyamine transporter. Surprisingly, 2-methylspermidine was a weak downregulator of ODC activity in DU145 cells. Our data demonstrates that it is possible to radically alter the biochemical properties of a polyamine analog by changing the position of the methyl group.
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Affiliation(s)
- Mervi T Hyvönen
- AI Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Eastern Finland, Kuopio, Finland.
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Khomutov MA, Hyvönen MT, Simonian AR, Vepsäläinen J, Alhonen L, Kochetkov SN, Keinänen TA. Novel metabolically stable and functionally active mimetic of spermidine. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2011; 37:253-8. [DOI: 10.1134/s1068162011020075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Khomutov AR, Weisell J, Khomutov MA, Grigorenko NA, Simonian AR, Häkkinen MR, Keinänen TA, Hyvönen MT, Alhonen L, Kochetkov SN, Vepsäläinen J. Methylated polyamines as research tools. Methods Mol Biol 2011; 720:449-461. [PMID: 21318892 DOI: 10.1007/978-1-61779-034-8_29] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Earlier unknown racemic β-methylspermidine (β-MeSpd) and γ-methylspermidine (γ-MeSpd) were -synthesized starting from crotononitrile or methacrylonitrile and putrescine. Lithium aluminum hydride reduction of the intermediate di-Boc-nitriles resulted in corresponding di-Boc-amines, which after deprotection gave target β- and γ-MeSpd's. To prepare α-MeSpd, the starting compound, 3-amino-1-butanol, was converted into N-Cbz-3-amino-1-butyl methanesulfonate, which alkylated putrescine to give (after deprotection of amino group) the required α-MeSpd. Novel β- and γ-MeSpd's in combination with earlier α-MeSpd are useful tools for studying enzymology and cell biology of polyamines.
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Affiliation(s)
- Alex R Khomutov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia.
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Abstract
This chapter provides an overview of the polyamine field and introduces the 32 other chapters that make up this volume. These chapters provide a wide range of methods, advice, and background relevant to studies of the function of polyamines, the regulation of their content, their role in disease, and the therapeutic potential of drugs targeting polyamine content and function. The methodology provided in this new volume will enable laboratories already working in this area to expand their experimental techniques and facilitate the entry of additional workers into this rapidly expanding field.
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Affiliation(s)
- Anthony E Pegg
- College of Medicine, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey, PA, USA
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Burrell M, Hanfrey CC, Murray EJ, Stanley-Wall NR, Michael AJ. Evolution and multiplicity of arginine decarboxylases in polyamine biosynthesis and essential role in Bacillus subtilis biofilm formation. J Biol Chem 2010; 285:39224-38. [PMID: 20876533 DOI: 10.1074/jbc.m110.163154] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Arginine decarboxylases (ADCs; EC 4.1.1.19) from four different protein fold families are important for polyamine biosynthesis in bacteria, archaea, and plants. Biosynthetic alanine racemase fold (AR-fold) ADC is widespread in bacteria and plants. We report the discovery and characterization of an ancestral form of the AR-fold ADC in the bacterial Chloroflexi and Bacteroidetes phyla. The ancestral AR-fold ADC lacks a large insertion found in Escherichia coli and plant AR-fold ADC and is more similar to the lysine biosynthetic enzyme meso-diaminopimelate decarboxylase, from which it has evolved. An E. coli acid-inducible ADC belonging to the aspartate aminotransferase fold (AAT-fold) is involved in acid resistance but not polyamine biosynthesis. We report here that the acid-inducible AAT-fold ADC has evolved from a shorter, ancestral biosynthetic AAT-fold ADC by fusion of a response regulator receiver domain protein to the N terminus. Ancestral biosynthetic AAT-fold ADC appears to be limited to firmicute bacteria. The phylogenetic distribution of different forms of ADC distinguishes bacteria from archaea, euryarchaeota from crenarchaeota, double-membraned from single-membraned bacteria, and firmicutes from actinobacteria. Our findings extend to eight the different enzyme forms carrying out the activity described by EC 4.1.1.19. ADC gene clustering reveals that polyamine biosynthesis employs diverse and exchangeable synthetic modules. We show that in Bacillus subtilis, ADC and polyamines are essential for biofilm formation, and this appears to be an ancient, evolutionarily conserved function of polyamines in bacteria. Also of relevance to human health, we found that arginine decarboxylation is the dominant pathway for polyamine biosynthesis in human gut microbiota.
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Affiliation(s)
- Matthew Burrell
- Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA, United Kingdom
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Nambeesan S, Datsenka T, Ferruzzi MG, Malladi A, Mattoo AK, Handa AK. Overexpression of yeast spermidine synthase impacts ripening, senescence and decay symptoms in tomato. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2010; 63:836-47. [PMID: 20584149 DOI: 10.1111/j.1365-313x.2010.04286.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Polyamines (PAs) are ubiquitous, polycationic biogenic amines that are implicated in many biological processes, including plant growth and development, but their precise roles remain to be determined. Most of the previous studies have involved three biogenic amines: putrescine (Put), spermidine (Spd) and spermine (Spm), and their derivatives. We have expressed a yeast spermidine synthase (ySpdSyn) gene under constitutive (CaMV35S) and fruit-ripening specific (E8) promoters in Solanum lycopersicum (tomato), and determined alterations in tomato vegetative and fruit physiology in transformed lines compared with the control. Constitutive expression of ySpdSyn enhanced intracellular levels of Spd in the leaf, and transiently during fruit development, whereas E8-ySpdSyn expression led to Spd accumulation early and transiently during fruit ripening. The ySpdSyn transgenic fruits had a longer shelf life, reduced shriveling and delayed decay symptom development in comparison with the wild-type (WT) fruits. An increase in shelf life of ySpdSyn transgenic fruits was not facilitated by changes in the rate of water loss or ethylene evolution. Additionally, the expression of several cell wall and membrane degradation-related genes in ySpdSyn transgenic fruits was not correlated with an extension of shelf life, indicating that the Spd-mediated increase in fruit shelf life is independent of the above factors. Crop maturity, indicated by the percentage of ripening fruits on the vine, was delayed in a CaMV35S-ySpdSyn genotype, with fruits accumulating higher levels of the antioxidant lycopene. Notably, whole-plant senescence in the transgenic plants was also delayed compared with WT plants. Together, these results provide evidence for a role of PAs, particularly Spd, in increasing fruit shelf life, probably by reducing post-harvest senescence and decay.
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Affiliation(s)
- Savithri Nambeesan
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
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42
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Handa AK, Mattoo AK. Differential and functional interactions emphasize the multiple roles of polyamines in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2010; 48:540-6. [PMID: 20227284 DOI: 10.1016/j.plaphy.2010.02.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Revised: 01/28/2010] [Accepted: 02/11/2010] [Indexed: 05/04/2023]
Abstract
Biogenic amines putrescine, spermidine and spermine are ubiquitous in nature and have interested researchers because they are essential for cell division and viability, and due to a large body of their pharmacological effects on growth and development in most living cells. The genes and enzymes involved in their biosynthetic pathways are now established and characterized. In recent years, molecular aspects of polyamine action have also begun to emerge. Our model is the ripening tomato fruit in which processes of cell division, cell expansion and cell growth have ceased, and yet the cells are responsive at biochemical and molecular levels to genetically manipulated concentrations of putrescine (Put), spermidine (Spd) and spermine (Spm). Thus, transcriptome, limited protein profiling, and metabolome studies of transgenic tomato fruit have yielded significant new information on cellular processes impacted by polyamine manipulation. We have used these datasets to determine the linear correlation coefficients between the endogenous levels of Put, Spd and Spm with several parameters. Results of our analysis presented here show that effects of the diamine Put generally contrast those with polyamines Spd and Spm, emphasizing that individual biogenic amines should be considered to have defined action in plant biology and that they differentially affect growth and development. A multiple function model of polyamine action is discussed to explain the role of polyamines in most organisms, in general, and ripening fruit, in particular.
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Affiliation(s)
- Avtar K Handa
- Department of Horticulture & Landscape Architecture, Purdue University, W. Lafayette, IN, USA.
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Chen S, Blank JL, Peters T, Liu XJ, Rappoli DM, Pickard MD, Menon S, Yu J, Driscoll DL, Lingaraj T, Burkhardt AL, Chen W, Garcia K, Sappal DS, Gray J, Hales P, Leroy PJ, Ringeling J, Rabino C, Spelman JJ, Morgenstern JP, Lightcap ES. Genome-wide siRNA screen for modulators of cell death induced by proteasome inhibitor bortezomib. Cancer Res 2010; 70:4318-26. [PMID: 20460535 DOI: 10.1158/0008-5472.can-09-4428] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Multiple pathways have been proposed to explain how proteasome inhibition induces cell death, but mechanisms remain unclear. To approach this issue, we performed a genome-wide siRNA screen to evaluate the genetic determinants that confer sensitivity to bortezomib (Velcade (R); PS-341). This screen identified 100 genes whose knockdown affected lethality to bortezomib and to a structurally diverse set of other proteasome inhibitors. A comparison of three cell lines revealed that 39 of 100 genes were commonly linked to cell death. We causally linked bortezomib-induced cell death to the accumulation of ASF1B, Myc, ODC1, Noxa, BNIP3, Gadd45alpha, p-SMC1A, SREBF1, and p53. Our results suggest that proteasome inhibition promotes cell death primarily by dysregulating Myc and polyamines, interfering with protein translation, and disrupting essential DNA damage repair pathways, leading to programmed cell death.
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Affiliation(s)
- Siquan Chen
- Discovery Technologies, Discovery Oncology Biology, and Medical Biostatistics, Millennium Pharmaceuticals, Inc., Cambridge, MA 02139, USA
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Landau G, Bercovich Z, Park MH, Kahana C. The role of polyamines in supporting growth of mammalian cells is mediated through their requirement for translation initiation and elongation. J Biol Chem 2010; 285:12474-81. [PMID: 20181941 PMCID: PMC2857121 DOI: 10.1074/jbc.m110.106419] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Revised: 02/18/2010] [Indexed: 12/16/2022] Open
Abstract
Polyamines are essential cell constituents whose depletion results in growth cessation. Here we have investigated potential mechanisms of action of polyamines in supporting mammalian cell proliferation. We demonstrate that polyamines regulate translation both at the initiation and at the elongation steps. L-alpha-difluoromethylornithine treatment resulting in polyamine depletion reduces protein synthesis via inhibition of translation initiation. N1-guanyl-diaminoheptane (GC7), a spermidine analogue that inhibits eukaryotic initiation factor 5A (eIF5A) hypusination, also caused inhibition of translation initiation. In contrast, depletion of eIF5A by short hairpin RNA inhibits translation elongation as was recently demonstrated in yeast and Drosophila. These results suggest that in addition to competing with spermidine in the hypusination reaction, GC7 also competes with spermidine at yet undefined sites required for translation initiation. Finally, we show that either polyamine depletion or GC7 treatment induced eIF2alpha phosphorylation and reduced phosphorylation of 4E-BP, thus setting the molecular basis for the observed inhibition of translation initiation.
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Affiliation(s)
- Guy Landau
- From the
Department of Molecular Genetics, the Weizmann Institute of Science, Rehovot 76199, Israel and
| | - Zippi Bercovich
- From the
Department of Molecular Genetics, the Weizmann Institute of Science, Rehovot 76199, Israel and
| | - Myung Hee Park
- the
Oral and Pharyngeal Cancer Branch, NIDCR, National Institutes of Health, Bethesda, Maryland 20892-4340
| | - Chaim Kahana
- From the
Department of Molecular Genetics, the Weizmann Institute of Science, Rehovot 76199, Israel and
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Häkkinen MR, Hyvönen MT, Auriola S, Casero RA, Vepsäläinen J, Khomutov AR, Alhonen L, Keinänen TA. Metabolism of N-alkylated spermine analogues by polyamine and spermine oxidases. Amino Acids 2010; 38:369-81. [PMID: 20012116 PMCID: PMC2992990 DOI: 10.1007/s00726-009-0429-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Accepted: 09/24/2009] [Indexed: 10/20/2022]
Abstract
N-alkylated polyamine analogues have potential as anticancer and antiparasitic drugs. However, their metabolism in the host has remained incompletely defined thus potentially limiting their utility. Here, we have studied the degradation of three different spermine analogues N,N'-bis-(3-ethylaminopropyl)butane-1,4-diamine (DESPM), N-(3-benzyl-aminopropyl)-N'-(3-ethylaminopropyl)butane-1,4-diamine (BnEtSPM) and N,N'-bis-(3-benzylaminopropyl)butane-1,4-diamine (DBSPM) and related mono-alkylated derivatives as substrates of recombinant human polyamine oxidase (APAO) and spermine oxidase (SMO). APAO and SMO metabolized DESPM to EtSPD [K(m(APAO)) = 10 microM, k(cat(APAO)) = 1.1 s(-1) and K(m(SMO)) = 28 microM, k(cat(SMO)) = 0.8 s(-1), respectively], metabolized BnEtSPM to EtSPD [K(m(APAO)) = 0.9 microM, k(cat(APAO)) = 1.1 s(-1) and K(m(SMO)) = 51 microM, k(cat(SMO)) = 0.4 s(-1), respectively], and metabolized DBSPM to BnSPD [K(m(APAO)) = 5.4 microM, k(cat(APAO)) = 2.0 s(-1) and K(m(SMO)) = 33 microM, k(cat(SMO)) = 0.3 s(-1), respectively]. Interestingly, mono-alkylated spermine derivatives were metabolized by APAO and SMO to SPD [EtSPM K(m(APAO)) = 16 microM, k(cat(APAO)) = 1.5 s(-1); K(m(SMO)) = 25 microM, k(cat(SMO)) = 8.2 s(-1); BnSPM K(m(APAO) )= 6.0 microM, k(cat(APAO)) = 2.8 s(-1); K(m(SMO)) = 19 muM, k(cat(SMO)) = 0.8 s(-1), respectively]. Surprisingly, EtSPD [K(m(APAO)) = 37 microM, k(cat(APAO)) = 0.1 s(-1); K(m(SMO)) = 48 microM, k(cat(SMO)) = 0.05 s(-1)] and BnSPD [K(m(APAO)) = 2.5 microM, k(cat(APAO)) = 3.5 s(-1); K(m(SMO)) = 60 microM, k(cat(SMO)) = 0.54 s(-1)] were metabolized to SPD by both the oxidases. Furthermore, we studied the degradation of DESPM, BnEtSPM or DBSPM in the DU145 prostate carcinoma cell line. The same major metabolites EtSPD and/or BnSPD were detected both in the culture medium and intracellularly after 48 h of culture. Moreover, EtSPM and BnSPM were detected from cell samples. Present data shows that inducible SMO parallel with APAO could play an important role in polyamine based drug action, i.e. degradation of parent drug and its metabolites, having significant impact on efficiency of these drugs, and hence for the development of novel N-alkylated polyamine analogues.
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Affiliation(s)
- Merja R Häkkinen
- Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, P.O.Box 1627, 70211, Kuopio, Finland.
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Abrighach H, Fajardo I, Sánchez-Jiménez F, Urdiales JL. Exploring polyamine regulation by nascent histamine in a human-transfected cell model. Amino Acids 2009; 38:561-73. [PMID: 19997758 DOI: 10.1007/s00726-009-0417-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Accepted: 09/14/2009] [Indexed: 01/04/2023]
Abstract
There are multiple lines of evidence suggesting interplay between histamine and polyamines in several mammalian cell types. However, the complex metabolic context makes it difficult to elucidate the mechanisms involved. Histamine's effects can be elicited after its binding to any of the four subtypes of G-protein coupled histamine membrane receptors. In addition, intracellular histamine can also interfere with polyamine metabolism, since there are several metabolic connections between the synthesis and degradation pathways of both types of amines. In order to dissect the metabolic effects of intracellular histamine on polyamine metabolism, we chose a well-known cell culture line, i.e., the human embryonic kidney 293 cells (HEK-293 cells). Initially, we show that HEK-293 cells lack a polyamine metabolic response to extracellular histamine, even over a wide range of histamine concentrations. HEK-293 cells were transfected with active and inactive versions of human histidine decarboxylase, and changes in many of the overlapping metabolic factors and limiting steps were tested. Overall, the results indicate a regulatory effect of histamine on the post-transcriptional expression of ornithine decarboxylase and suggest that this effect is primarily responsible for the decrease in polyamine synthesis and partial blockade of cell-cycle progression, which should affect cell proliferation rate.
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Affiliation(s)
- H Abrighach
- Procel Lab, Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, 29071, Málaga, Spain
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47
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Nayvelt I, Hyvönen MT, Alhonen L, Pandya I, Thomas T, Khomutov AR, Vepsäläinen J, Patel R, Keinänen TA, Thomas TJ. DNA Condensation by Chiral α-Methylated Polyamine Analogues and Protection of Cellular DNA from Oxidative Damage. Biomacromolecules 2009; 11:97-105. [DOI: 10.1021/bm900958c] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Irina Nayvelt
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Mervi T. Hyvönen
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Leena Alhonen
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Ipsit Pandya
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Thresia Thomas
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Alex R. Khomutov
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Jouko Vepsäläinen
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Rajesh Patel
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - Tuomo A. Keinänen
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
| | - T. J. Thomas
- Departments of Medicine, Environmental & Community Medicine and Pathology & Laboratory Medicine and the Cancer Institute of New Jersey, University of Medicine and Dentistry of New Jersey-Robert Wood Johnson Medical School, New Brunswick, New Jersey 08903, Department of Biotechnology and Molecular Medicine, A. I. Virtanen Institute for Molecular Sciences, Biocenter Kuopio, University of Kuopio, Finland, Laboratory of Chemistry, Department of Biosciences, Biocenter Kuopio, University of Kuopio, Finland,
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Abstract
Polyamines are ubiquitous small basic molecules that play multiple essential roles in mammalian physiology. Their cellular content is highly regulated and there is convincing evidence that altered metabolism is involvement in many disease states. Drugs altering polyamine levels may therefore have a variety of important targets. This review will summarize the current state of understanding of polyamine metabolism and function, the regulation of polyamine content, and heritable pathological conditions that may be derived from altered polyamine metabolism.
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Affiliation(s)
- Anthony E Pegg
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
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49
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Divergent regulation of the key enzymes of polyamine metabolism by chiral alpha-methylated polyamine analogues. Biochem J 2009; 422:321-8. [PMID: 19522702 DOI: 10.1042/bj20090737] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The natural polyamines are ubiquitous multifunctional organic cations which play important roles in regulating cellular proliferation and survival. Here we present a novel approach to investigating polyamine functions by using optical isomers of MeSpd (alpha-methylspermidine) and Me2Spm (alpha,omega-bismethylspermine), metabolically stable functional mimetics of natural polyamines. We studied the ability of MeSpd and Me2Spm to alter the normal polyamine regulation pathways at the level of polyamine uptake and the major control mechanisms known to affect the key polyamine metabolic enzymes. These include: (i) ODC (ornithine decarboxylase), which catalyses the rate-limiting step of polyamine synthesis; (ii) ODC antizyme, an inhibitor of ODC and polyamine uptake; (iii) SSAT (spermidine/spermine N1-acetyltransferase), the major polyamine catabolic enzyme; and (iv) AdoMetDC (S-adenosyl-L-methionine decarboxylase), which is required for the conversion of putrescine into spermidine, and spermidine into spermine. We show that the stereoisomers differ in their cellular uptake and ability to downregulate ODC and AdoMetDC, and to induce SSAT. These effects are mediated by the ability of the enantiomers to induce +1 ribosomal frameshifting on ODC antizyme mRNA, to suppress the translation of AdoMetDC uORF (upstream open reading frame) and to regulate the alternative splicing of SSAT pre-mRNA. The unique effects of chiral polyamine analogues on polyamine metabolism may offer novel possibilities for studying the physiological functions, control mechanisms, and targets of the natural polyamines, as well as advance therapeutic drug development in cancer and other human health-related issues.
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50
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Abstract
In addition to polyamine homoeostasis, it has become increasingly clear that polyamine catabolism can play a dominant role in drug response, apoptosis and the response to stressful stimuli, and contribute to the aetiology of several pathological states, including cancer. The highly inducible enzymes SSAT (spermidine/spermine N1-acetyltransferase) and SMO (spermine oxidase) and the generally constitutively expressed APAO (N1-acetylpolyamine oxidase) appear to play critical roles in many normal and disease processes. The dysregulation of polyamine catabolism frequently accompanies several disease states and suggests that such dysregulation may both provide useful insight into disease mechanism and provide unique druggable targets that can be exploited for therapeutic benefit. Each of these enzymes has the potential to alter polyamine homoeostasis in response to multiple cell signals and the two oxidases produce the reactive oxygen species H2O2 and aldehydes, each with the potential to produce pathological states. The activity of SSAT provides substrates for APAO or substrates for the polyamine exporter, thus reducing the intracellular polyamine concentration, the net effect of which depends on the magnitude and rate of any increase in SSAT. SSAT may also influence cellular metabolism via interaction with other proteins and by perturbing the content of acetyl-CoA and ATP. The goal of the present review is to cover those aspects of polyamine catabolism that have an impact on disease aetiology or treatment and to provide a solid background in this ever more exciting aspect of polyamine biology.
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Affiliation(s)
- Robert A Casero
- Department of Oncology, Johns Hopkins University School of Medicine and the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD 21231, USA.
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