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Preparation of a clickable monomer compatible with automated PNA synthesis. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yamashita H, Tomoshige S, Nomura S, Ohgane K, Hashimoto Y, Ishikawa M. Application of protein knockdown strategy targeting β-sheet structure to multiple disease-associated polyglutamine proteins. Bioorg Med Chem 2019; 28:115175. [PMID: 31767406 DOI: 10.1016/j.bmc.2019.115175] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 12/19/2022]
Abstract
Polyglutamine diseases are a class of neurodegenerative diseases associated with the accumulation of aggregated mutant proteins. We previously developed a class of degradation-inducing agents targeting the β-sheet-rich structure typical of such aggregates, and we showed that these agents dose-, time-, and proteasome-dependently decrease the intracellular level of mutant huntingtin with an extended polyglutamine tract, which correlates well with the severity of Huntington's disease. Here, we demonstrate that the same agents also deplete other polyglutamine disease-related proteins: mutant ataxin-3 and ataxin-7 in cells from spino-cerebellar ataxia patients, and mutant atrophin-1 in cells from dentatorubral-pallidoluysian atrophy patients. Targeting cross-β-sheet structure could be an effective design strategy to develop therapeutic agents for multiple neurodegenerative diseases.
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Affiliation(s)
- Hiroko Yamashita
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-032, Japan
| | - Shusuke Tomoshige
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-032, Japan
| | - Sayaka Nomura
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-032, Japan
| | - Kenji Ohgane
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-032, Japan
| | - Yuichi Hashimoto
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-032, Japan
| | - Minoru Ishikawa
- Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-032, Japan; Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
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Wierzba AJ, Maximova K, Wincenciuk A, Równicki M, Wojciechowska M, Nexø E, Trylska J, Gryko D. Does a Conjugation Site Affect Transport of Vitamin B 12 -Peptide Nucleic Acid Conjugates into Bacterial Cells? Chemistry 2018; 24:18772-18778. [PMID: 30286265 DOI: 10.1002/chem.201804304] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Indexed: 12/14/2022]
Abstract
Gram-negative bacteria develop specific systems for the uptake of scarce nutrients, including vitamin B12 . These uptake pathways may be utilized for the delivery of biologically relevant molecules into cells. Indeed, it was recently reported that vitamin B12 transported an antisense peptide nucleic acid (PNA) into Escherichia coli and Salmonella Typhimurium cells. The present studies indicate that the conjugation site of PNA to vitamin B12 has an impact on PNA transport into bacterial cells. Toward this end, a specifically designed PNA oligomer has been tethered at various positions of vitamin B12 (central Co, R5' -OH, c and e amide chains, meso position, and at the hydroxy group of cobinamide) by using known or newly developed methodologies and tested for the uptake of the synthesized conjugates by E. coli. Compounds in which the PNA oligonucleotide was anchored at the R5' -OH position were transported more efficiently than that of other compounds tethered at the peripheral positions around the corrin ring. Of importance is the fact that, contrary to mammalian organisms, E. coli also takes up cobinamide, which is an incomplete corrinoid. This selectivity opens up ways to fight bacterial infections.
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Affiliation(s)
- Aleksandra J Wierzba
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Ksenia Maximova
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097, Warsaw, Poland
| | - Aleksandra Wincenciuk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Marcin Równicki
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097, Warsaw, Poland.,College of Inter-Faculty Individual Studies in Mathematics, and Natural Sciences, Banacha 2c, 02-097, Warsaw, Poland
| | - Monika Wojciechowska
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097, Warsaw, Poland
| | - Ebba Nexø
- Department of Clinical Biochemistry, Aarhus University Hospital, PalleJuul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Joanna Trylska
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097, Warsaw, Poland
| | - Dorota Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
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O'Toole TM, Graham KJ, Jones TN. N-(3-Trimethylsilyl)propargyl amino esters via reductive amination. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Würdemann M, Christoffers J. Investigations on intramolecular 1,3-dipolar cycloadditions for the synthesis of isoxazolo-annulated pyrrolidines, piperidines and azepanes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Ahmed N, Konduru NK, Ahmad S, Owais M. Design, synthesis and antiproliferative activity of functionalized flavone-triazole-tetrahydropyran conjugates against human cancer cell lines. Eur J Med Chem 2014; 82:552-64. [DOI: 10.1016/j.ejmech.2014.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 05/27/2014] [Accepted: 06/05/2014] [Indexed: 12/25/2022]
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Heuer-Jungemann A, Howarth NM, Ja’Afaru SC, Rosair GM. Development of a convenient route for the preparation of the N2-Cbz-protected guaninyl synthon required for Boc-mediated PNA synthesis. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Clicked polycyclic aromatic hydrocarbon as a hybridization-responsive fluorescent artificial nucleobase in pyrrolidinyl peptide nucleic acids. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.062] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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