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St-Gelais J, Denavit V, Giguère D. Efficient synthesis of a galectin inhibitor clinical candidate (TD139) using a Payne rearrangement/azidation reaction cascade. Org Biomol Chem 2021; 18:3903-3907. [PMID: 32400847 DOI: 10.1039/d0ob00910e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selective galectin inhibitors are valuable research tools and could also be used as drug candidates. In that context, TD139, a thiodigalactoside galectin-3 inhibitor, is currently being evaluated clinically for the treatment of idiopathic pulmonary fibrosis. Herein, we describe a new strategy for the preparation of TD139. Starting from inexpensive levoglucosan, we used a rarely employed reaction cascade: Payne rearrangement/azidation process leading to 3-azido-galactopyranose. The latter intermediate was efficiently converted into TD139 in a few simple and practical steps.
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Affiliation(s)
- Jacob St-Gelais
- Département de Chimie, 1045 av. De la Médecine, Université Laval, GlycoNet, Québec City, Qc, Canada G1V 0A6.
| | - Vincent Denavit
- Département de Chimie, 1045 av. De la Médecine, Université Laval, GlycoNet, Québec City, Qc, Canada G1V 0A6.
| | - Denis Giguère
- Département de Chimie, 1045 av. De la Médecine, Université Laval, GlycoNet, Québec City, Qc, Canada G1V 0A6.
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Lainé D, Denavit V, Giguère D. Synthesis of Protected 3-Deoxy-3-fluoro- and 4-Deoxy-4-fluoro-d-galactopyranosides from Levoglucosan. J Org Chem 2017; 82:4986-4992. [DOI: 10.1021/acs.joc.7b00543] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Danny Lainé
- PROTEO, RQRM, Département
de Chimie, Université Laval, 1045 av. De la Médecine, Québec City, Québec, Canada G1V 0A6
| | - Vincent Denavit
- PROTEO, RQRM, Département
de Chimie, Université Laval, 1045 av. De la Médecine, Québec City, Québec, Canada G1V 0A6
| | - Denis Giguère
- PROTEO, RQRM, Département
de Chimie, Université Laval, 1045 av. De la Médecine, Québec City, Québec, Canada G1V 0A6
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Harrison JA, Kartha KPR, Fournier EJL, Lowary TL, Malet C, Nilsson UJ, Hindsgaul O, Schenkman S, Naismith JH, Field RA. Probing the acceptor substrate binding site of Trypanosoma cruzi trans-sialidase with systematically modified substrates and glycoside libraries. Org Biomol Chem 2011; 9:1653-60. [PMID: 21253654 PMCID: PMC3315775 DOI: 10.1039/c0ob00826e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Accepted: 11/22/2010] [Indexed: 01/31/2023]
Abstract
Systematically modified octyl galactosides and octyl N-acetyllactosamines were assessed as inhibitors of, and substrates for, T. cruzi trans-sialidase (TcTS) in the context of exploring its acceptor substrate binding site. These studies show that TcTS, which catalyses the α-(2→3)-sialylation of non-reducing terminal β-galactose residues, is largely intolerant of substitution of the galactose 2 and 4 positions whereas substitution of the galactose 6 position is well tolerated. Further studies show that even the addition of a bulky sugar residue (glucose, galactose) does not impact negatively on TcTS binding and turnover, which highlights the potential of 'internal' 6-substituted galactose residues to serve as TcTS acceptor substrates. Results from screening a 93-membered thiogalactoside library highlight a number of structural features (notably imidazoles and indoles) that are worthy of further investigation in the context of TcTS inhibitor development.
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Affiliation(s)
- Jennifer A. Harrison
- Centre for Biomolecular Sciences , University of St Andrews , St Andrews , UK KY16 9ST
| | - K. P. Ravindranathan Kartha
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research , Sector 67 , SAS Nagar , Punjab 160 062 , India
| | - Eric J. L. Fournier
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G2G2 , Canada
| | - Todd L. Lowary
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G2G2 , Canada
| | - Carles Malet
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G2G2 , Canada
| | - Ulf J. Nilsson
- Department of Organic Chemistry , Lund University , Box 124 , SE-22100 , Lund , Sweden
| | - Ole Hindsgaul
- Department of Chemistry , University of Alberta , Edmonton , Alberta T6G2G2 , Canada
- Carlsberg Laboratory , Gamle Carlsberg Vej 10 , Valby-Copenhagen , DK-2500 , Denmark
| | - Sergio Schenkman
- Department of Microbiology , Immunology and Parasitology , Universidade Federal de São Paulo , Rua Botucatu 862 8 andar , 04023-062 , São Paulo , SP , Brazil
| | - James H. Naismith
- Centre for Biomolecular Sciences , University of St Andrews , St Andrews , UK KY16 9ST
| | - Robert A. Field
- Department of Biological Chemistry , John Innes Centre , Norwich , UK NR4 7TJ .
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Synthesis of the hexasaccharide repeating unit corresponding to the cell wall lipopolysaccharide of Azospirillum irakense KBC1. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Brown JR, Crawford BE, Esko JD. Glycan antagonists and inhibitors: a fount for drug discovery. Crit Rev Biochem Mol Biol 2008; 42:481-515. [PMID: 18066955 DOI: 10.1080/10409230701751611] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Glycans, the carbohydrate chains of glycoproteins, proteoglycans, and glycolipids, represent a relatively unexploited area for drug development compared with other macromolecules. This review describes the major classes of glycans synthesized by animal cells, their mode of assembly, and available inhibitors for blocking their biosynthesis and function. Many of these agents have proven useful for studying the biological activities of glycans in isolated cells, during embryological development, and in physiology. Some are being used to develop drugs for treating metabolic disorders, cancer, and infection, suggesting that glycans are excellent targets for future drug development.
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Brown JR, Fuster MM, Whisenant T, Esko JD. Expression patterns of alpha 2,3-sialyltransferases and alpha 1,3-fucosyltransferases determine the mode of sialyl Lewis X inhibition by disaccharide decoys. J Biol Chem 2003; 278:23352-9. [PMID: 12686549 DOI: 10.1074/jbc.m303093200] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A variety of human adenocarcinomas express sialylated, fucosylated Lewis blood group antigens on cell surface and secreted mucins. Binding of these antigens to P-selectin on platelets is thought to facilitate formation of platelet-tumor emboli in the circulation, which in turn allows sequestration of the tumor cells in the microvasculature. Here we report a pharmacologic approach for blocking these interactions through metabolic inhibition of sialylation. Peracetylated forms of Galbeta1,4GlcNAcbeta-O-naphthalenemethanol and GlcNAcbeta1,3Galbeta-O-naphthalenemethanol were taken up by LS180 human colon carcinoma cells, O-deacetylated, and utilized as biosynthetic intermediates, resulting in heterogeneous oligosaccharides. The primed oligosaccharides included sialylated, sulfated, and fucosylated products based on mass spectrometry. Assembly of free oligosaccharides on the glycosides decoyed glycosylation of cellular glycoproteins, as assessed by altered binding of lectins and carbohydrate-specific antibodies. Expression of alpha2,3-sialylated oligosaccharides on the cell surface was diminished specifically, whereas alpha2,6-sialylation and fucosylation were not. In U937 lymphoma cells, the glycosides decreased fucosylation without affecting sialylation. The differential inhibitory activities correlated inversely with fucosyltransferase and sialyltransferase activity based on enzyme assays and microarray analysis. Regardless of the mechanism, the disaccharides blocked the cells from forming selectin ligands and inhibited adhesion to immobilized selectins, suggesting that the glycosides might prove useful for interfering with tumor cell adhesion and metastasis.
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Affiliation(s)
- Jillian R Brown
- Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego, La Jolla, California 92093-0687, USA
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Fuentes J, Angulo M, Pradera MA. Fluoronucleosides, isothiocyanato C-nucleosides, and thioureylene di-C-nucleosides via cyclic sulfates. J Org Chem 2002; 67:2577-87. [PMID: 11950304 DOI: 10.1021/jo0110303] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclic sulfates of N- and C-nucleosides (D-ribo and D-erythro configurations, respectively) are used to prepare 3'-fluoro and 3'-azido D-xylo N-nucleosides and L-threo C-nucleosides. The reduction of the 3'-azido C-nucleosides (furan, imidazoline-2-thione, and pyrrole derivatives) gives 3'-amino C-nucleosides, which, by reaction with thiocarbonyldiimidazole, are transformed into 3'-isothiocyanato C-nucleosides. Reaction of the 3'-amino with the 3'-isothiocyanato C-nucleosides gives thioureylene di-C-nucleosides, a type of nucleotide analogue with a nonionic bridge isosteric of the phosphate group.
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Affiliation(s)
- José Fuentes
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, E-41071 Seville, Spain.
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Vogtherr M, Peters T. Application of NMR Based Binding Assays to Identify Key Hydroxy Groups for Intermolecular Recognition. J Am Chem Soc 2000. [DOI: 10.1021/ja0001916] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Martin Vogtherr
- Contribution from the Institut für Chemie, Medizinische Universität zu Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany
| | - Thomas Peters
- Contribution from the Institut für Chemie, Medizinische Universität zu Lübeck, Ratzeburger Allee 160, D-23538 Lübeck, Germany
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Pozsgay V. A new strategy in oligosaccharide synthesis using lipophilic protecting groups: synthesis of a tetracosasaccharide. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0957-4166(99)00553-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Taylor WH, Sinha A, Khan IA, McDaniel ST, Esko JD. Primers of glycosaminoglycan biosynthesis from Peruvian rain forest plants. J Biol Chem 1998; 273:22260-6. [PMID: 9712841 DOI: 10.1074/jbc.273.35.22260] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
We have developed a rapid, high throughput screening assay for compounds that alter the assembly of glycosaminoglycan chains in Chinese hamster ovary cells. The assay uses autoradiography to measure the binding of newly synthesized [35S]proteoglycans and [35S]glycosaminoglycans to a positively charged membrane. Screening over 1000 extracts from a random plant collection obtained from the Amazon rain forest yielded five plants that stimulated glycosaminoglycan assembly in both wild-type cells and a mutant cell line defective in xylosyltransferase (the first committed enzyme involved in glycosaminoglycan biosynthesis). Fractionation of an extract of Maieta guianensis by silica gel and reverse-phase chromatography yielded two pure compounds with stimulatory activity. Spectroscopic analysis by NMR and mass spectrometry revealed that the active principles were xylosides of dimethylated ellagic acid. One of the compounds also contained a galloyl group at C-3 of the xylose moiety. These findings suggest that plants and other natural products may be a source of agents that can potentially alter glycosaminoglycan and proteoglycan formation in animal cells.
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Affiliation(s)
- W H Taylor
- Division of Cellular and Molecular Medicine, Department of Medicine, and the Glycobiology Program, University of California, La Jolla, California 92093-0687, USA
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Sarkar AK, Rostand KS, Jain RK, Matta KL, Esko JD. Fucosylation of disaccharide precursors of sialyl LewisX inhibit selectin-mediated cell adhesion. J Biol Chem 1997; 272:25608-16. [PMID: 9325281 DOI: 10.1074/jbc.272.41.25608] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
We showed previously that HL-60 and F9 mouse embryonal carcinoma cells will take up and deblock peracetylated Galbeta1-4GlcNAcbeta-O-naphthalenemethanol (Galbeta1-4GlcNAc-NM) and use the disaccharide as a primer of oligosaccharide chains (Sarkar, A. K., Fritz, T. A., Taylor, W. H., and Esko, J. D. (1995) Proc. Natl. Acad. Sci. U. S. A. 92, 3323-3327). We now report that another disaccharide, acetylated GlcNAcbeta1-3Gal-naphthalenemethanol (GlcNAcbeta1-3Gal-NM), has even greater potency and that both compounds will inhibit sialyl LewisX (sLex)-dependent cell adhesion. When fed to U937 cells, acetylated forms of Galbeta1-4GlcNAc-NM and GlcNAcbeta1-3Gal-NM primed oligosaccharides in a dose-dependent manner. Analysis of compounds assembled on Galbeta1-4GlcNAc-NM showed only one product, namely Galbeta1-4(Fucalpha1-3)GlcNAc-NM. In contrast, GlcNAcbeta1-3Gal-NM generated Galbeta1-4GlcNAcbeta1-3Gal-NM, Galbeta1-4(Fucalpha1-3)GlcNAcbeta1-3Gal-NM, NeuAcalpha2-3Galbeta1-4GlcNAcbeta1-3Gal-NM, and NeuAcalpha2-3Galbeta1-4(Fucalpha1-3)GlcNAcbeta1- 3Gal-NM. Both compounds decreased the incorporation of [3H]fucose into cellular glycoconjugates, without affecting the incorporation of [3H]mannosamine, a precursor of sialic acid residues. Moreover, the overall extent of sialylation was not affected based on the reactivity of cells to fluorescein isothiocyanate-conjugated Maackia amurensis lectin. Priming inhibited expression of sLex on cell surface glycoconjugates, which reduced E-selectin-dependent cell adhesion to tumor necrosis factor-alpha-activated human umbilical vein endothelial cells. GlcNAcbeta1-3Gal-NM and Galbeta1-4GlcNAc-NM represent starting points for making enzyme-specific, site-directed inhibitors of glycosyltransferases that could act in living cells.
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Affiliation(s)
- A K Sarkar
- Division of Cellular and Molecular Medicine, Glycobiology Program, UCSD Cancer Center, University of California, San Diego, La Jolla, California 92093-0687, USA
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Kirschning A, Bechthold AFW, Rohr J. Chemical and biochemical aspects of deoxysugars and deoxysugar oligosaccharides. Top Curr Chem (Cham) 1997. [DOI: 10.1007/bfb0119234] [Citation(s) in RCA: 148] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Lugemwa FN, Sarkar AK, Esko JD. Unusual beta-D-xylosides that prime glycosaminoglycans in animal cells. J Biol Chem 1996; 271:19159-65. [PMID: 8702593 DOI: 10.1074/jbc.271.32.19159] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The biosynthesis of glycosaminoglycans (GAG) takes place while the polysaccharide chains are usually attached to a proteoglycan core protein. Cells also will assemble GAG chains on beta-D-xylosides containing hydrophobic aglycones. In order to evaluate the relationship of the structure of the sugar to priming activity of the glycoside, we synthesized beta-D-xyloside analogs in which the hydroxyls were substituted with hydrogen, fluorine, -O-methyl, amino, -O-isopropyl, and -O-benzyl groups. Epimers at the 2-, 3-, and 4-position of xylose also were made. Their ability to prime GAGs was tested in Chinese hamster ovary cells by measuring 35SO4 incorporation into polysaccharide chains and by assaying the transfer of galactose to the xylosides by galactosyltransferase I (UDP-D-galactose:xylose beta1-4-galactosyltransferase) in vitro. All of the analogs failed to act as primers of GAGs in vivo and as substrates in vitro with the following exceptions. Substitution of 2-OH and 3-OH with -OCH3 were active at high concentration (1 mM), but the deoxygenated derivatives were inactive. Efficient priming also occurred on a derivative with fluorine instead of the 3-OH group, suggesting that the oxygen atoms at C-2 and C-3 were involved as hydrogen bond acceptors. Methylated and deoxy analogs at C-4 were inactive, due to the loss of the acceptor hydroxyl group. Interestingly, benzyl-beta-D-threo-pentopyranos-4-uloside (4-keto derivative) and benzyl-4-methyl-beta-D-xyloside, with a methyl group in place of an axial hydrogen at C-4, primed GAG chains. Priming by these unusual xylosides suggests the possibility of designing inhibitors of GAG synthesis based on xyloside analogs with reactive groups in key positions.
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Affiliation(s)
- F N Lugemwa
- Department of Biochemistry and Molecular Genetics, Schools of Medicine and Dentistry, University of Alabama at Birmingham, Birmingham, Alabama 35294-0005, USA
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Jeong JH, Murray BW, Takayama S, Wong CH. Cyclic Guanidino-Sugars with Low pKa as Transition-State Analog Inhibitors of Glycosidases: Neutral Instead of Charged Species Are the Active Forms. J Am Chem Soc 1996. [DOI: 10.1021/ja951602z] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jin-Hyun Jeong
- Contribution from the Department of Chemistry, The Scripps Research Institute, 10666 N. Torrey Pines Road, La Jolla, California 92037
| | - Brion W. Murray
- Contribution from the Department of Chemistry, The Scripps Research Institute, 10666 N. Torrey Pines Road, La Jolla, California 92037
| | - Shuichi Takayama
- Contribution from the Department of Chemistry, The Scripps Research Institute, 10666 N. Torrey Pines Road, La Jolla, California 92037
| | - Chi-Huey Wong
- Contribution from the Department of Chemistry, The Scripps Research Institute, 10666 N. Torrey Pines Road, La Jolla, California 92037
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Pozsgay V, Robbins JB. Synthesis of a pentasaccharide fragment of Polysaccharide II of Mycobacterium tuberculosis. Carbohydr Res 1995; 277:51-66. [PMID: 8548790 DOI: 10.1016/0008-6215(95)00199-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Stereocontrolled, stepwise synthesis of decyl glycosides of alpha-(1-->2)-linked di- to pentaglucosides (1-5) is described; these constitute fragments of Polysaccharide II of Mycobacterium tuberculosis. Phenyl 3,4,6-tri-O-acetyl-2-O-benzyl-1-thio-alpha-D- glucopyranoside (7) was used as the single key intermediate, obtained from 1,3,4,6-tetra-O-acetyl-2-O-benzyl-beta-D-glucopyranose (6) and PhSSiMe3. Halogenolysis of 7 afforded the isolated beta bromide (10) and beta chloride (13). Solvolysis of 10 with decanol without heavy metal salts gave decyl 3,4,6-tri-O-acetyl-2-O-benzyl-alpha-D-glucopyranoside (14) in a highly stereoselective reaction, in high yield. Subsequent, iterative hydrogenolytic removal of the O-benzyl group and glycosylation with the beta-chloride 13 under catalysis by silver salts afforded the protected di- to penta-saccharide glycosides 16, 19, 21, and 23, which were conventionally deblocked.
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Affiliation(s)
- V Pozsgay
- Laboratory of Developmental and Molecular Immunity, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
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