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Yano T, Yamada T, Ishida H, Ohashi N, Itoh T. Correction: 2-cyanopyridine derivatives enable N-terminal cysteine bioconjugation and peptide bond cleavage of glutathione under aqueous and mild conditions. RSC Adv 2024; 14:12416. [PMID: 38633483 PMCID: PMC11022124 DOI: 10.1039/d4ra90039a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024] Open
Abstract
[This corrects the article DOI: 10.1039/D4RA00437J.].
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Affiliation(s)
- Tetsuya Yano
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Takahiro Yamada
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Hiroaki Ishida
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Nami Ohashi
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Toshimasa Itoh
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
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2
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Yano T, Yamada T, Isida H, Ohashi N, Itoh T. 2-cyanopyridine derivatives enable N-terminal cysteine bioconjugation and peptide bond cleavage of glutathione under aqueous and mild conditions. RSC Adv 2024; 14:6542-6547. [PMID: 38390509 PMCID: PMC10882492 DOI: 10.1039/d4ra00437j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024] Open
Abstract
Inspired by the chemical reactivity of apalutamide, we have developed an efficient method for N-terminal cysteine bioconjugation with 2-cyanopyridine derivatives. Systematic investigations of various 2-cyanopyridines revealed that 2-cyanopyridines with electron-withdrawing groups react efficiently with cysteine under aqueous and mild conditions. Moreover, the highly reactive 2-cyanopyridines enable the peptide bond cleavage of glutathione. The utility of our method is demonstrated by its application to the cysteine-selective chemical modification of bioactive peptides.
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Affiliation(s)
- Tetsuya Yano
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Takahiro Yamada
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Hiroaki Isida
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Nami Ohashi
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
| | - Toshimasa Itoh
- Showa Pharmaceutical University Machida Tokyo 194-8543 Japan
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3
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Kobayakawa T, Takano H, Ishii T, Bolah P, Tsuji K, Ohashi N, Nomura W, Furuta T, Tamamura H. Effect of Two-Photon Excitation to 8-Azacoumarin Derivatives as Photolabile Protecting Groups. Chem Pharm Bull (Tokyo) 2024; 72:311-312. [PMID: 38494724 DOI: 10.1248/cpb.c24-00013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
An improvement of the two-photon excitation was achieved using 8-azacoumarin-type caged compounds, which showed large values of the two-photon uncaging action cross-section (δu >0.1 Goeppert-Mayer (GM)). In particular, the 7-hydroxy-6-iodo-8-azacoumarin (8-aza-Ihc)-caged compound showed an excellent uncaging action cross-section value (δu = 1.28 GM). Therefore, 8-azacoumarin-type photolabile protecting groups (PPGs) can be used as two-photon excitation sources.
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Affiliation(s)
- Takuya Kobayakawa
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Hikaru Takano
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Takahiro Ishii
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Peter Bolah
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Kohei Tsuji
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
| | - Nami Ohashi
- Department of Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University
| | - Wataru Nomura
- Department of Genome and Biomolecular Engineering for Drug Discovery, School of Pharmaceutical Sciences and Graduate School of Biomedical & Health Sciences, Hiroshima University
| | - Toshiaki Furuta
- Department of Biomolecular Science, Faculty of Science, Toho University
| | - Hirokazu Tamamura
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)
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4
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Zhi N, Ohashi N, Rikihisa Y, Horowitz HW, Wormser GP, Hechemy K. Correction for Zhi et al., "Cloning and Expression of the 44-Kilodalton Major Outer Membrane Protein Gene of the Human Granulocytic Ehrlichiosis Agent and Application of the Recombinant Protein to Serodiagnosis". J Clin Microbiol 2023; 61:e0070323. [PMID: 37676012 PMCID: PMC10654053 DOI: 10.1128/jcm.00703-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023] Open
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Ishii T, Kobayakawa T, Matsuda K, Tsuji K, Ohashi N, Nakahata S, Noborio A, Yoshimura K, Mitsuya H, Maeda K, Tamamura H. Synthesis and evaluation of DAG-lactone derivatives with HIV-1 latency reversing activity. Eur J Med Chem 2023; 256:115449. [PMID: 37224601 PMCID: PMC10683555 DOI: 10.1016/j.ejmech.2023.115449] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/26/2023]
Abstract
Cells latently infected with human immunodeficiency virus type 1 (HIV-1) prevent people living with HIV-1 from obtaining a cure to the infectious disease. Latency reversing agents (LRAs) such as protein kinase C (PKC) activators and histone deacetylase (HDAC) inhibitors can reactivate cells latently infected with HIV-1. Several trials based on treatment with HDAC inhibitors alone, however, failed to reduce the number of latent HIV-1 reservoirs. Herein, we have focused on a diacylglycerol (DAG)-lactone derivative, YSE028 (1), which is a PKC activator with latency reversing activity and no significant cytotoxicity. Caspase-3 activation of YSE028 (1) led to cell apoptosis, specifically in HIV-1 latently infected cells. Structure-activity relationship studies of YSE028 (1) have produced several useful derivatives. Among these, compound 2 is approximately ten times more potent than YSE028 (1) in reactivation of cells latently infected with HIV-1. The activity of DAG-lactone derivatives was correlated with the binding affinity for PKC and the stability against esterase-mediated hydrolysis.
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Affiliation(s)
- Takahiro Ishii
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Takuya Kobayakawa
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Kouki Matsuda
- Division of Antiviral Therapy, Joint Research Center for Human Retrovirus Infection, Kagoshima University, Kagoshima, 890-8544, Japan; AIDS Clinical Center, National Center for Global Health and Medicine Research Institute, Shinjuku-ku, Tokyo, 162-8655, Japan
| | - Kohei Tsuji
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Nami Ohashi
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan
| | - Shingo Nakahata
- Division of HTLV-1/ATL Carcinogenesis and Therapeutics, Joint Research Center for Human Retrovirus Infection, Kagoshima University, Kagoshima, 890-8544, Japan
| | - Airi Noborio
- Division of Antiviral Therapy, Joint Research Center for Human Retrovirus Infection, Kagoshima University, Kagoshima, 890-8544, Japan
| | - Kazuhisa Yoshimura
- Institute of Public Health, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Hiroaki Mitsuya
- Department of Refractory Viral Infections, National Center for Global Health and Medicine Research Institute, Shinjuku-ku, Tokyo, 162-8655, Japan; Experimental Retrovirology Section, HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, United States; Department of Clinical Sciences, Kumamoto University Hospital, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Kenji Maeda
- Division of Antiviral Therapy, Joint Research Center for Human Retrovirus Infection, Kagoshima University, Kagoshima, 890-8544, Japan
| | - Hirokazu Tamamura
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Chiyoda-ku, Tokyo, 101-0062, Japan.
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6
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Kojima H, Yanagi R, Higuchi E, Yoshizawa M, Shimodaira T, Kumagai M, Kyoya T, Sekine M, Egawa D, Ohashi N, Ishida H, Yamamoto K, Itoh T. Covalent Modifier Discovery Using Hydrogen/Deuterium Exchange-Mass Spectrometry. J Med Chem 2023; 66:4827-4839. [PMID: 36994595 DOI: 10.1021/acs.jmedchem.2c01986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Covalent ligands are generally filtered out of chemical libraries used for high-throughput screening, because electrophilic functional groups are considered to be pan-assay interference compounds (PAINS). Therefore, screening strategies that can distinguish true covalent ligands from PAINS are required. Hydrogen/deuterium-exchange mass spectrometry (HDX-MS) is a powerful tool for evaluating protein stability. Here, we report a covalent modifier screening approach using HDX-MS. In this study, HDX-MS was used to classify peroxisome proliferator-activated receptor γ (PPARγ) and vitamin D receptor ligands. HDX-MS could discriminate the strength of ligand-protein interactions. Our HDX-MS screening method identified LT175 and nTZDpa, which can bind concurrently to the PPARγ ligand-binding domain (PPARγ-LBD) with synergistic activation. Furthermore, iodoacetic acid was identified as a novel covalent modifier that stabilizes the PPARγ-LBD.
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Affiliation(s)
- Hiroyuki Kojima
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Ryota Yanagi
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Eri Higuchi
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Mami Yoshizawa
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Tomoyuki Shimodaira
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Misaki Kumagai
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Tatsuhiro Kyoya
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Miyu Sekine
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Daichi Egawa
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Nami Ohashi
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Hiroaki Ishida
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Keiko Yamamoto
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Toshimasa Itoh
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
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7
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Kobayakawa T, Yokoyama M, Tsuji K, Fujino M, Kurakami M, Onishi T, Boku S, Ishii T, Miura Y, Shinohara K, Kishihara Y, Ohashi N, Kotani O, Murakami T, Sato H, Tamamura H. Low-molecular-weight anti-HIV-1 agents targeting HIV-1 capsid proteins. RSC Adv 2023; 13:2156-2167. [PMID: 36712613 PMCID: PMC9834766 DOI: 10.1039/d2ra06837k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 01/02/2023] [Indexed: 01/15/2023] Open
Abstract
The HIV-1 capsid is a shell that encapsulates viral RNA, and forms a conical structure by assembling oligomers of capsid (CA) proteins. Since the CA proteins are highly conserved among many strains of HIV-1, the inhibition of the CA function could be an appropriate goal for suppression of HIV-1 replication, but to date, no drug targeting CA has been developed. Hydrophobic interactions between two CA molecules through Trp184 and Met185 in the protein are known to be indispensable for conformational stabilization of the CA multimer. In our previous study, a small molecule designed by in silico screening as a dipeptide mimic of Trp184 and Met185 in the interaction site was synthesized and found to have significant anti-HIV-1 activity. In the present study, molecules with different scaffolds based on a dipeptide mimic of Trp184 and Met185 have been designed and synthesized. Their significant anti-HIV activity and their advantages compared to the previous compounds were examined. The present results should be useful in the design of novel CA-targeting anti-HIV agents.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Masaru Yokoyama
- Pathogen Genomics Center, National Institute of Infectious DiseasesMusashimurayama 208-0011TokyoJapan
| | - Kohei Tsuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Masayuki Fujino
- AIDS Research Center, National Institute of Infectious DiseasesShinjuku-kuTokyo 162-8640Japan
| | - Masaki Kurakami
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Takato Onishi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Sayaka Boku
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Takahiro Ishii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Yutaro Miura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Kouki Shinohara
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Yuki Kishihara
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
| | - Nami Ohashi
- Showa Pharmaceutical UniversityMachida 194-8543TokyoJapan
| | - Osamu Kotani
- Pathogen Genomics Center, National Institute of Infectious DiseasesMusashimurayama 208-0011TokyoJapan
| | - Tsutomu Murakami
- AIDS Research Center, National Institute of Infectious DiseasesShinjuku-kuTokyo 162-8640Japan
| | - Hironori Sato
- Pathogen Genomics Center, National Institute of Infectious DiseasesMusashimurayama 208-0011TokyoJapan
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU)2-3-10 Kandasurugadai, Chiyoda-kuTokyo 101-0062Japan
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8
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Tsuji K, Kobayakawa T, Konno K, Masuda A, Takahashi K, Ohashi N, Yoshimura K, Kuwata T, Matsushita S, Harada S, Tamamura H. Exploratory studies on soluble small molecule CD4 mimics as HIV entry inhibitors. Bioorg Med Chem 2022; 56:116616. [DOI: 10.1016/j.bmc.2022.116616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 11/02/2022]
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9
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Tsuji K, Ishii T, Kobayakawa T, Ohashi N, Nomura W, Tamamura H. Fluorescence resonance energy transfer-based screening for protein kinase C ligands using 6-methoxynaphthalene-labeled 1,2-diacylglycerol-lactones. Org Biomol Chem 2021; 19:8264-8271. [PMID: 34338277 DOI: 10.1039/d1ob00814e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protein kinase C (PKC) is associated with a central cellular signal transduction pathway and disorders such as cancer and Alzheimer-type dementia and is therefore a target for the treatment of these diseases. The development of simple methods suitable for high-throughput screening to find potent PKC ligands is desirable. We have developed an assay based on fluorescence-quenching screening with a solvatochromic fluorophore attached to a competitive probe and its alternative method based on Förster/fluorescence resonance energy transfer (FRET) phenomena. Here, an improved FRET-based PKC binding assay using a diacylglycerol (DAG) lactone labeled with a donor fluorescent dye, 6-methoxynaphthalene (6MN), was developed. The 6MN-labeled DAG-lactone has a higher binding affinity for the PKCδ C1b domain and the fluorescent PKCδ C1b domain labeled by fluorescein as an acceptor fluorescent dye (Fl-δC1b) than the diethylaminocoumarin (DEAC)-labeled DAG-lactone. The combination of the 6MN-labeled DAG-lactone and Fl-δC1b showed a change in fluorescence response larger than that of the DEAC-labeled DAG-lactone and Fl-δC1b. The IC50 values of known PKC ligands calculated by the present FRET-based method using 6MN-labeled DAG-lactone agree well with the Ki values obtained by the conventional radioisotope-based assays. Some false positive compounds, identified by the previous solvatochromic fluorophore-based method, were found to be negative by this method. The present FRET-based PKC binding assay is more sensitive and could be more useful.
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Affiliation(s)
- Kohei Tsuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Takahiro Ishii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Wataru Nomura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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10
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Kanamori S, Ohashi N, Ishida H, Yamamoto K, Itoh T. HNF4α Is a Covalent Bond-Forming Receptor. J Nutr Sci Vitaminol (Tokyo) 2021; 67:126-129. [PMID: 33952733 DOI: 10.3177/jnsv.67.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
HNF4α is a nuclear receptor whose ligands are fatty acids. HNF4α is a target molecule for drug discovery research and thus we tested its covalent binding ability to investigate the possible development of covalent modifiers of HNF4α. Oxidized polyunsaturated fatty acids (oxo-PUFAs) have moderate flexibility and possess a Michael acceptor that participates in conjugate addition reactions with nucleophilic amino acid residues. Thus, oxo-PUFAs were used as probes and their covalent binding abilities to HNF4α were verified. Several oxo-PUFAs, such as 4-oxoDHA, were shown to be covalent modifiers of HNF4α and therefore we concluded that HNF4α can form covalent bonds to ligands.
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11
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Yoshikawa C, Ishida H, Ohashi N, Kojima H, Itoh T. Construction of 7-Diethylaminocoumarins Promoted by an Electron-Withdrawing Group. Chem Pharm Bull (Tokyo) 2021; 69:608-611. [PMID: 34193709 DOI: 10.1248/cpb.c21-00228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The coumarin skeleton has been a focus of attention for many years, and its fluorescence properties vary depending on the substituents. Fluorescent coumarin derivatives are useful tools for many strategies have been developed for their synthesis. Although 7-diethylaminocoumarin has excellent fluorescence properties, it is unstable. We have developed a facile strategy for the synthesis of 7-diethylaminocoumarin derivatives by increasing the electrophilicity of the ynone moiety to promote nucleophilic addition reactions and cyclization. The reaction tolerates a variety of substitutions at the 4-position.
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12
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Yoshikawa C, Ishida H, Ohashi N, Itoh T. Synthesis of a Coumarin-Based PPARγ Fluorescence Probe for Competitive Binding Assay. Int J Mol Sci 2021; 22:4034. [PMID: 33919837 PMCID: PMC8070791 DOI: 10.3390/ijms22084034] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/10/2021] [Accepted: 04/11/2021] [Indexed: 12/28/2022] Open
Abstract
Peroxisome proliferator-activated receptor γ (PPARγ) is a molecular target of metabolic syndrome and inflammatory disease. PPARγ is an important nuclear receptor and numerous PPARγ ligands were developed to date; thus, efficient assay methods are important. Here, we investigated the incorporation of 7-diethylamino coumarin into the PPARγ agonist rosiglitazone and used the compound in a binding assay for PPARγ. PPARγ-ligand-incorporated 7-methoxycoumarin, 1, showed weak fluorescence intensity in a previous report. We synthesized PPARγ-ligand-incorporating coumarin, 2, in this report, and it enhanced the fluorescence intensity. The PPARγ ligand 2 maintained the rosiglitazone activity. The obtained partial agonist 6 appeared to act through a novel mechanism. The fluorescence intensity of 2 and 6 increased by binding to the ligand binding domain (LBD) of PPARγ and the affinity of reported PPARγ ligands were evaluated using the probe.
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Affiliation(s)
| | | | | | - Toshimasa Itoh
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan; (C.Y.); (H.I.); (N.O.)
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13
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Kobayakawa T, Yokoyama M, Tsuji K, Fujino M, Kurakami M, Boku S, Nakayama M, Kaneko M, Ohashi N, Kotani O, Murakami T, Sato H, Tamamura H. Small-Molecule Anti-HIV-1 Agents Based on HIV-1 Capsid Proteins. Biomolecules 2021; 11:biom11020208. [PMID: 33546092 PMCID: PMC7913237 DOI: 10.3390/biom11020208] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/09/2021] [Accepted: 01/12/2021] [Indexed: 12/28/2022] Open
Abstract
The capsid of human immunodeficiency virus type 1 (HIV-1) is a shell that encloses viral RNA and is highly conserved among many strains of the virus. It forms a conical structure by assembling oligomers of capsid (CA) proteins. CA dysfunction is expected to be an important target of suppression of HIV-1 replication, and it is important to understand a new mechanism that could lead to the CA dysfunction. A drug targeting CA however, has not been developed to date. Hydrophobic interactions between two CA molecules via Trp184/Met185 in CA were recently reported to be important for stabilization of the multimeric structure of CA. In the present study, a small molecule designed by in silico screening as a dipeptide mimic of Trp184 and Met185 in the interaction site, was synthesized and its significant anti-HIV-1 activity was confirmed. Structure activity relationship (SAR) studies of its derivatives were performed and provided results that are expected to be useful in the future design and development of novel anti-HIV agents targeting CA.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
| | - Masaru Yokoyama
- Pathogen Genomics Center, National Institute of Infectious Diseases, Musashimurayama, Tokyo 208-0011, Japan; (M.Y.); (O.K.)
| | - Kohei Tsuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
| | - Masayuki Fujino
- AIDS Research Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan;
| | - Masaki Kurakami
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
| | - Sayaka Boku
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
| | - Miyuki Nakayama
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
| | - Moemi Kaneko
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
| | - Osamu Kotani
- Pathogen Genomics Center, National Institute of Infectious Diseases, Musashimurayama, Tokyo 208-0011, Japan; (M.Y.); (O.K.)
| | - Tsutomu Murakami
- AIDS Research Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan;
- Correspondence: (T.M.); (H.S.); (H.T.); Tel.: +81-3-4582-2816 (T.M.); +81-42-561-0771 (H.S.); +81-3-5280-8036 (H.T.)
| | - Hironori Sato
- Pathogen Genomics Center, National Institute of Infectious Diseases, Musashimurayama, Tokyo 208-0011, Japan; (M.Y.); (O.K.)
- Correspondence: (T.M.); (H.S.); (H.T.); Tel.: +81-3-4582-2816 (T.M.); +81-42-561-0771 (H.S.); +81-3-5280-8036 (H.T.)
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan; (T.K.); (K.T.); (M.K.); (S.B.); (M.N.); (M.K.); (N.O.)
- Correspondence: (T.M.); (H.S.); (H.T.); Tel.: +81-3-4582-2816 (T.M.); +81-42-561-0771 (H.S.); +81-3-5280-8036 (H.T.)
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14
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Kobayakawa T, Tsuji K, Konno K, Himeno A, Masuda A, Yang T, Takahashi K, Ishida Y, Ohashi N, Kuwata T, Matsumoto K, Yoshimura K, Sakawaki H, Miura T, Harada S, Matsushita S, Tamamura H. Hybrids of Small-Molecule CD4 Mimics with Polyethylene Glycol Units as HIV Entry Inhibitors. J Med Chem 2021; 64:1481-1496. [PMID: 33497209 DOI: 10.1021/acs.jmedchem.0c01153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
CD4 mimics are small molecules that inhibit the interaction of gp120 with CD4. We have developed several CD4 mimics. Herein, hybrid molecules consisting of CD4 mimics with a long alkyl chain or a PEG unit attached through a self-cleavable linker were synthesized. In anti-HIV activity, modification with a PEG unit appeared to be more suitable than modification with a long alkyl chain. Thus, hybrid molecules of CD4 mimics, with PEG units attached through an uncleavable linker, were developed and showed high anti-HIV activity and low cytotoxicity. In investigation of pharmacokinetics in a rhesus macaque, a hybrid compound had a more effective PK profile than that of the parent compound, and intramuscular injection was a more useful administration route to maintain the high blood concentration of the CD4 mimic than intravenous injection. The presented hybrid molecules of CD4 mimics with a PEG unit would be practically useful when combined with a neutralizing antibody.
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Affiliation(s)
- Takuya Kobayakawa
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kohei Tsuji
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kiju Konno
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Ai Himeno
- Institute for Frontier Life and Medical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Ami Masuda
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tingting Yang
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kohei Takahashi
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yusuke Ishida
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Nami Ohashi
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takeo Kuwata
- The Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 860-0811, Japan
| | - Kaho Matsumoto
- The Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 860-0811, Japan
| | - Kazuhisa Yoshimura
- Institute of Public Health, Bureau of Social Welfare and Public Health, Tokyo Metropolitan Government, Shinjuku-ku, Tokyo, 169-0073, Japan
| | - Hiromi Sakawaki
- Institute for Frontier Life and Medical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tomoyuki Miura
- Institute for Frontier Life and Medical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Shigeyoshi Harada
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Shuzo Matsushita
- The Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto 860-0811, Japan
| | - Hirokazu Tamamura
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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15
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Kawamoto H, Higashitarumizu N, Nagamura N, Nakamura M, Shimamura K, Ohashi N, Nagashio K. Micrometer-scale monolayer SnS growth by physical vapor deposition. Nanoscale 2020; 12:23274-23281. [PMID: 33206097 DOI: 10.1039/d0nr06022d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Recently, monolayer SnS, a two-dimensional group IV monochalcogenide, was grown on a mica substrate at the micrometer-size scale by the simple physical vapor deposition (PVD), resulting in the successful demonstration of its in-plane room temperature ferroelectricity. However, the reason behind the monolayer growth remains unclear because it had been considered that the SnS growth inevitably results in a multilayer thickness due to the strong interlayer interaction arising from lone pair electrons. Here, we investigate the PVD growth of monolayer SnS from two different feed powders, highly purified SnS and commercial phase-impure SnS. Contrary to expectations, it is suggested that the mica substrate surface is modified by sulfur evaporated from the Sn2S3 contaminant in the as-purchased powder and the lateral growth of monolayer SnS is facilitated due to the enhanced surface diffusion of SnS precursor molecules, unlike the growth from the highly purified powder. This insight provides a guide to identify further controllable growth conditions.
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Affiliation(s)
- H Kawamoto
- Department of Materials Engineering, The University of Tokyo, Tokyo 113-8656, Japan.
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16
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Kobayakawa T, Ebihara K, Tsuji K, Kawada T, Fujino M, Honda Y, Ohashi N, Murakami T, Tamamura H. Bivalent HIV-1 fusion inhibitors based on peptidomimetics. Bioorg Med Chem 2020; 28:115812. [PMID: 33157478 DOI: 10.1016/j.bmc.2020.115812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 10/23/2022]
Abstract
Membrane fusion is a valid target for inhibition of HIV-1 replication. A 34-mer fragment peptide (C34), which is contained in the HIV-1 envelope protein gp41, has significant anti-HIV activity. Previously, a dimeric derivative of C34 linked by a disulfide bridge at its C-terminus was found to have more potent anti-HIV activity than the C34 peptide monomer. To date, several peptidomimetic small inhibitors have been reported, but most have lower potency than peptide derivatives related to C34. In the present study we applied this dimerization concept to these peptidomimetic small inhibitors and designed several bivalent peptidomimetic HIV-1 fusion inhibitors. The importance of the length of linkers crosslinking two peptidomimetic compounds was demonstrated and several potent bivalent inhibitors containing tethered peptidomimetics were produced.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kento Ebihara
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kohei Tsuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takuma Kawada
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Masayuki Fujino
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Yuzuna Honda
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tsutomu Murakami
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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17
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Kobayakawa T, Takano H, Ishii T, Tsuji K, Ohashi N, Nomura W, Furuta T, Tamamura H. Synthesis of hydrophilic caged DAG-lactones for chemical biology applications. Org Biomol Chem 2020; 18:4217-4223. [PMID: 32432608 DOI: 10.1039/d0ob00807a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 6-bromo-7-hydroxy-coumarin-4-ylmethyl (Bhc) group has been used widely in cage chemistry because of its high molar absorptivity and photolytic efficiency. One of the drawbacks of coumarins however is their low aqueous solubility. Aqueous solubility is important in the behavior of caged compounds because hydrophobic caged compounds might be aggregated in physiological conditions and consequently the photocleavage would be impaired. The 8-azacoumarin-4-ylmethyl derivatives with bromine (8-aza-Bhc) or iodine (8-aza-Ihc), which were previously developed in this laboratory, have aqueous solubilities that are higher than those of related coumarins. Here, to improve the hydrophilicity and management of caged diacylglycerol lactones (DAG-lactones), 8-aza-Bhc and 8-aza-Ihc were introduced into the DAG-lactone structure. The synthesized caged compounds showed high hydrophilicity compared with the parent Bhc-caged DAG-lactone, and the 8-aza-Ihc-caged DAG-lactone (2) showed excellent photolytic efficiency, which allows rapid release of the DAG-lactone (1) by brief photoirradiation. The 8-aza-7-hydroxy-6-iodo-coumarin-4-ylmethyl group might be useful for caging of bioactive compounds, especially hydrophobic compounds.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Hikaru Takano
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Takahiro Ishii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Kohei Tsuji
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Wataru Nomura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
| | - Toshiaki Furuta
- Department of Biomolecular Science, Faculty of Science, Toho University, Funabashi 274-8510, Japan
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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18
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Archambault AS, Turcotte C, Dumais E, Martin C, Blanchet MR, Bissonnette E, Ohashi N, Yamamoto K, Itoh T, Laviolette M, Veilleux A, Boulet LP, Di Marzo V, Flamand N. Endocannabinoid hydrolysis inhibition unmasks that unsaturated fatty acids induce a robust synthesis of 2-arachidonoyl-glycerol and its congeners in human myeloid leukocytes. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.144.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
The endocannabinoid 2-arachidonoyl-gycerol (2-AG) modulates immune responses by activating cannabinoid receptors or through its multiple metabolites, notably eicosanoids. Thus, 2-AG hydrolysis inhibition might represent an interesting anti-inflammatory strategy that would simultaneously increase the levels of 2-AG and decrease those of eicosanoids. Accordingly, 2-AG hydrolysis inhibition increased 2-AG half-life in neutrophils. Under such setting, neutrophils, eosinophils and monocytes synthesized large amounts of 2-AG and other monoacylglycerols (MAGs) in response to arachidonic acid and other unsaturated fatty acids (UFAs). Arachidonic acid and UFAs were ~1000-fold more potent than GPCR agonists at stimulating MAG biosynthesis. Triascin C and thimerosal, which respectively inhibit fatty acyl-CoA synthases and acyl-CoA transferases, prevented the UFA-induced MAG synthesis, implying glycerolipid remodeling is essential in this process. 2-AG and other MAG biosynthesis was preceded by that of the corresponding lysophosphatidic acid (LPA). However, we could not directly implicate LPA dephosphorylation in MAG biosynthesis. While the GPCR agonists PAF, fMLP and LTB4 poorly or did not induced 2-AG biosynthesis, they inhibited that induced by AA by 25–50%, suggesting that 2-AG biosynthesis is decreased when leukocytes are surrounded by a pro-inflammatory entourage. Our data conclusively indicate that human leukocytes use AA and UFAs to biosynthesize biologically significant concentrations of 2-AG and other MAGs and that hijacking the immune system with 2-AG hydrolysis inhibitors might diminish inflammation in humans.
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Affiliation(s)
| | - Caroline Turcotte
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Elizabeth Dumais
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | | | - Marie-Renée Blanchet
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Elyse Bissonnette
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Nami Ohashi
- 3Showa Pharmaceutical University, Laboratory of Drug Design and Medicinal Chemistry, Japan
| | - Keiko Yamamoto
- 3Showa Pharmaceutical University, Laboratory of Drug Design and Medicinal Chemistry, Japan
| | - Toshimasa Itoh
- 3Showa Pharmaceutical University, Laboratory of Drug Design and Medicinal Chemistry, Japan
| | - Michel Laviolette
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Alain Veilleux
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Louis-Philippe Boulet
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Vincenzo Di Marzo
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Nicolas Flamand
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
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19
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Turcotte C, Archambault AS, Dumais É, Martin C, Blanchet MR, Bissonnette E, Ohashi N, Yamamoto K, Itoh T, Laviolette M, Veilleux A, Boulet LP, Di Marzo V, Flamand N. Endocannabinoid hydrolysis inhibition unmasks that unsaturated fatty acids induce a robust biosynthesis of 2-arachidonoyl-glycerol and its congeners in human myeloid leukocytes. FASEB J 2020; 34:4253-4265. [PMID: 32012340 DOI: 10.1096/fj.201902916r] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/07/2020] [Accepted: 01/07/2020] [Indexed: 12/12/2022]
Abstract
The endocannabinoid (eCB) 2-arachidonoyl-gycerol (2-AG) modulates immune responses by activating cannabinoid receptors or through its multiple metabolites, notably eicosanoids. Thus, 2-AG hydrolysis inhibition might represent an interesting anti-inflammatory strategy that would simultaneously increase the levels of 2-AG and decrease those of eicosanoids. Accordingly, 2-AG hydrolysis inhibition increased 2-AG half-life in neutrophils. Under such setting, neutrophils, eosinophils, and monocytes synthesized large amounts of 2-AG and other monoacylglycerols (MAGs) in response to arachidonic acid (AA) and other unsaturated fatty acids (UFAs). Arachidonic acid and UFAs were ~1000-fold more potent than G protein-coupled receptor (GPCR) agonists. Triascin C and thimerosal, which, respectively, inhibit fatty acyl-CoA synthases and acyl-CoA transferases, prevented the UFA-induced MAG biosynthesis, implying glycerolipid remodeling. 2-AG and other MAG biosynthesis was preceded by that of the corresponding lysophosphatidic acid (LPA). However, we could not directly implicate LPA dephosphorylation in MAG biosynthesis. While GPCR agonists poorly induced 2-AG biosynthesis, they inhibited that induced by AA by 25%-50%, suggesting that 2-AG biosynthesis is decreased when leukocytes are surrounded by a pro-inflammatory entourage. Our data strongly indicate that human leukocytes use AA and UFAs to biosynthesize biologically significant concentrations of 2-AG and other MAGs and that hijacking the immune system with 2-AG hydrolysis inhibitors might diminish inflammation in humans.
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Affiliation(s)
- Caroline Turcotte
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Anne-Sophie Archambault
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Élizabeth Dumais
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Cyril Martin
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Marie-Renée Blanchet
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Elyse Bissonnette
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Nami Ohashi
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, Machida, Japan
| | - Keiko Yamamoto
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, Machida, Japan
| | - Toshimasa Itoh
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, Machida, Japan
| | - Michel Laviolette
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Alain Veilleux
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec City, QC, Canada
| | - Louis-Philippe Boulet
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Vincenzo Di Marzo
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec City, QC, Canada.,Joint International Unit between the National Research Council (CNR) of Italy and Université Laval on Chemical and Biomolecular Research on the Microbiome and its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Institute of Biomolecular Chemistry, CNR, Pozzuoli, Italy
| | - Nicolas Flamand
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
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20
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Kojima H, Fujita Y, Takeuchi R, Ikebe Y, Ohashi N, Yamamoto K, Itoh T. Cyclization Reaction-Based Turn-on Probe for Covalent Labeling of Target Proteins. Cell Chem Biol 2020; 27:334-349.e11. [PMID: 31991094 DOI: 10.1016/j.chembiol.2020.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 12/10/2019] [Accepted: 01/06/2020] [Indexed: 12/31/2022]
Abstract
Fluorescent molecules have contributed to basic biological research but there are currently only a limited number of probes available for the detection of non-enzymatic proteins. Here, we report turn-on fluorescent probes mediated by conjugate addition and cyclization (TCC probes). These probes react with multiple amino acids and exhibit a 36-fold greater emission intensity after reaction. We analyzed the reactions between TCC probes and nuclear receptors by electrospray ionization mass spectrometry, X-ray crystallography, spectrofluorometry, and fluorescence microscopy. In vitro analysis showed that probes consisting of a protein ligand and TCC could label vitamin D receptor and peroxisome proliferator-activated receptor γ. Moreover, we demonstrated that not only a ligand unit but also a peptide unit can label the target protein in a complex mixture.
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Affiliation(s)
- Hiroyuki Kojima
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yuki Fujita
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Ryosuke Takeuchi
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yuka Ikebe
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Nami Ohashi
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Keiko Yamamoto
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Toshimasa Itoh
- Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan.
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21
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Khalifa H, El-Safty SA, Reda A, Shenashen MA, Selim MM, Alothman OY, Ohashi N. Meso/macroscopically multifunctional surface interfaces, ridges, and vortex-modified anode/cathode cuticles as force-driven modulation of high-energy density of LIB electric vehicles. Sci Rep 2019; 9:14701. [PMID: 31605015 PMCID: PMC6789099 DOI: 10.1038/s41598-019-51345-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/16/2019] [Indexed: 11/20/2022] Open
Abstract
Modulation of lithium-ion battery (LIB) anodes/cathodes with three-dimensional (3D) topographical hierarchy ridges, surface interfaces, and vortices promotes the power tendency of LIBs in terms of high-energy density and power density. Large-scale meso-geodesics offer a diverse range of spatial LIB models along the geodetically shaped downward/upward curvature, leading to open-ended movement gate options, and diffusible space orientations. Along with the primary 3D super-scalable hierarchy, the formation of structural features of building block egress/ingress, curvature cargo-like sphere vehicles, irregularly located serrated cuticles with abundant V-undulated rigidness, feathery tube pipe conifers, and a band of dagger-shaped needle sticks on anode/cathode electrode surfaces provides high performance LIB modules. The geodetically-shaped anode/cathode design enables the uniqueness of all LIB module configurations in terms of powerful lithium ion (Li+) movement revolving in out-/in- and up-/downward diffusion regimes and in hovering electron density for high-speed discharge rates. The stability of built-in anode//cathode full-scale LIB-model meso-geodesics affords an outstanding long-term cycling performance. The full-cell LIB meso-geodesics offered 91.5% retention of the first discharge capacity of 165.8 mAhg-1 after 2000 cycles, Coulombic efficiency of ~99.6% at the rate of 1 C and room temperature, and high specific energy density of ≈119 Wh kg-1. This LIB meso-geodesic module configuration may align perfectly with the requirements of the energy density limit mandatory for long-term EV driving range and the scale-up commercial manufactures.
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Affiliation(s)
- H Khalifa
- National Institute for Materials Science (NIMS), Sengen 1-2-1, Tsukuba, Ibaraki, 305-0047, Japan
| | - S A El-Safty
- National Institute for Materials Science (NIMS), Sengen 1-2-1, Tsukuba, Ibaraki, 305-0047, Japan.
| | - A Reda
- National Institute for Materials Science (NIMS), Sengen 1-2-1, Tsukuba, Ibaraki, 305-0047, Japan
| | - M A Shenashen
- National Institute for Materials Science (NIMS), Sengen 1-2-1, Tsukuba, Ibaraki, 305-0047, Japan
| | - M M Selim
- Department of Mathematics, Al-Aflaj College of Science and Human Studies, Prince Sattam Bin Abdulaziz University, Al-Aflaj, 710-11912, Saudi Arabia
| | - O Y Alothman
- Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia
| | - N Ohashi
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
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22
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Taniwaki M, Yamasaki M, Matsumoto Y, Matsumoto N, Ohashi N, Hattori N. Corticosteroid therapy for organizing pneumonia in a human T-cell lymphotropic virus type-1 carrier. Pulmonology 2019; 25:193-195. [PMID: 31000439 DOI: 10.1016/j.pulmoe.2019.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 02/04/2019] [Accepted: 02/05/2019] [Indexed: 11/18/2022] Open
Affiliation(s)
- M Taniwaki
- Department of Respiratory Disease, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Naka-ku, Hiroshima, Japan.
| | - M Yamasaki
- Department of Respiratory Disease, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Naka-ku, Hiroshima, Japan
| | - Y Matsumoto
- Department of Respiratory Disease, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Naka-ku, Hiroshima, Japan
| | - N Matsumoto
- Department of Respiratory Disease, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Naka-ku, Hiroshima, Japan
| | - N Ohashi
- Department of Respiratory Disease, Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital, Naka-ku, Hiroshima, Japan; Ohashi Clinic, Naka-ku, Hiroshima, Japan
| | - N Hattori
- Department of Molecular and Internal Medicine, Institute of Biomedical & Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan
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Kobayakawa T, Konno K, Ohashi N, Takahashi K, Masuda A, Yoshimura K, Harada S, Tamamura H. Soluble-type small-molecule CD4 mimics as HIV entry inhibitors. Bioorg Med Chem Lett 2019; 29:719-723. [PMID: 30665681 DOI: 10.1016/j.bmcl.2019.01.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/28/2018] [Accepted: 01/10/2019] [Indexed: 10/27/2022]
Abstract
Several small molecule CD4 mimics have been reported previously as HIV-1 entry inhibitors, which block the interaction between the Phe43 cavity of HIV-1 gp120 and the host CD4. Known CD4 mimics such as NBD-556 possess significant anti-HIV activity but are less soluble in water, perhaps due to their hydrophobic aromatic ring-containing structures. Compounds with a pyridinyl group in place of the phenyl group in these molecules have been designed and synthesized in an attempt to increase the hydrophilicity. Some of these new CD4 mimics, containing a tetramethylpiperidine ring show significantly higher water solubility than NBD-556 and have high anti-HIV activity and synergistic anti-HIV activity with a neutralizing antibody. The CD4 mimic that has a cyclohexylpiperidine ring and a 6-fluoropyridin-3-yl ring has high anti-HIV activity and no significant cytotoxicity. The present results will be useful in the future design and development of novel soluble-type molecule CD4 mimics.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kiju Konno
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kohei Takahashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Ami Masuda
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kazuhisa Yoshimura
- AIDS Research Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Shigeyoshi Harada
- AIDS Research Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan.
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan.
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Kobayakawa T, Ohashi N, Hirota Y, Takahashi K, Yamada Y, Narumi T, Yoshimura K, Matsushita S, Harada S, Tamamura H. Flexibility of small molecular CD4 mimics as HIV entry inhibitors. Bioorg Med Chem 2018; 26:5664-5671. [PMID: 30366786 DOI: 10.1016/j.bmc.2018.10.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 10/16/2018] [Indexed: 11/30/2022]
Abstract
CD4 mimics such as YIR-821 and its derivatives are small molecules which inhibit the interaction between the Phe43 cavity of HIV-1 gp120 with host CD4, an interaction that is involved in the entry of HIV to cells. Known CD4 mimics generally possess three structural features, an aromatic ring, an oxalamide linker and a piperidine moiety. We have shown previously that introduction of a cyclohexyl group and a guanidine group into the piperidine moiety and a fluorine atom at the meta-position of the aromatic ring leads to a significant increase in the anti-HIV activity. In the current study, the effects of conformational flexibility were investigated by introduction of an indole-type group in the junction between the oxalamide linker and the aromatic moiety or by replacement of the oxalamide linker with a glycine linker. This led to the development of compounds with high anti-HIV activity, showing the importance of the junction region for the expression of high anti-HIV activity. The present data are expected to be useful in the future design of novel CD4 mimic molecules.
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Affiliation(s)
- Takuya Kobayakawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yuki Hirota
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kohei Takahashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yuko Yamada
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tetsuo Narumi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kazuhisa Yoshimura
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan; Center for AIDS Research, Kumamoto University, Kumamoto 860-0811, Japan
| | - Shuzo Matsushita
- Center for AIDS Research, Kumamoto University, Kumamoto 860-0811, Japan
| | - Shigeyoshi Harada
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan.
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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25
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Chauvin M, Florén HG, Friis M, Jackson M, Kamae T, Kataoka J, Kawano T, Kiss M, Mikhalev V, Mizuno T, Ohashi N, Stana T, Tajima H, Takahashi H, Uchida N, Pearce M. Publisher Correction: Shedding new light on the Crab with polarized X-rays. Sci Rep 2018; 8:7975. [PMID: 29773826 PMCID: PMC5958095 DOI: 10.1038/s41598-018-24853-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
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Affiliation(s)
- M Chauvin
- KTH Royal Institute of Technology, Department of Physics, 106 91, Stockholm, Sweden.,The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 106 91, Stockholm, Sweden
| | - H-G Florén
- Stockholm University, Department of Astronomy, 106 91, Stockholm, Sweden
| | - M Friis
- KTH Royal Institute of Technology, Department of Physics, 106 91, Stockholm, Sweden.,The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 106 91, Stockholm, Sweden
| | - M Jackson
- KTH Royal Institute of Technology, Department of Physics, 106 91, Stockholm, Sweden.,School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, UK
| | - T Kamae
- University of Tokyo, Department of Physics, Tokyo, 113-0033, Japan.,SLAC/KIPAC, Stanford University, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - J Kataoka
- Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
| | - T Kawano
- Hiroshima University, Department of Physical Science, Hiroshima, 739-8526, Japan
| | - M Kiss
- KTH Royal Institute of Technology, Department of Physics, 106 91, Stockholm, Sweden.,The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 106 91, Stockholm, Sweden
| | - V Mikhalev
- KTH Royal Institute of Technology, Department of Physics, 106 91, Stockholm, Sweden.,The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 106 91, Stockholm, Sweden
| | - T Mizuno
- Hiroshima University, Department of Physical Science, Hiroshima, 739-8526, Japan
| | - N Ohashi
- Hiroshima University, Department of Physical Science, Hiroshima, 739-8526, Japan
| | - T Stana
- KTH Royal Institute of Technology, Department of Physics, 106 91, Stockholm, Sweden.,The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 106 91, Stockholm, Sweden
| | - H Tajima
- Institute for Space-Earth Environment Research, Nagoya University, Aichi, 464-8601, Japan
| | - H Takahashi
- Hiroshima University, Department of Physical Science, Hiroshima, 739-8526, Japan
| | - N Uchida
- Hiroshima University, Department of Physical Science, Hiroshima, 739-8526, Japan
| | - M Pearce
- KTH Royal Institute of Technology, Department of Physics, 106 91, Stockholm, Sweden. .,The Oskar Klein Centre for Cosmoparticle Physics, AlbaNova University Centre, 106 91, Stockholm, Sweden.
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26
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Tamamura H, Kobayakawa T, Ohashi N. Introduction to Mid-size Drugs and Peptidomimetics. Mid-size Drugs Based on Peptides and Peptidomimetics 2018. [DOI: 10.1007/978-981-10-7691-6_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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27
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Ohashi N, Tazawa K, Yamamoto K, Miyazaki D, Hineno A, Nakamura A. Patients with ALS under tracheostomy positive-pressure ventilation (TPPV) and complicating malignant tumor. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Kodaira M, Ohashi N, Morita H, Sekijima Y. An electrophysiological pitfall in transthyretin familial amyloidosis misinterpreted as chronic inflammatory demyelinating polyradiculoneuropathy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Ohashi N, Kobayashi R, Nomura W, Kobayakawa T, Czikora A, Herold BK, Lewin NE, Blumberg PM, Tamamura H. Synthesis and Evaluation of Dimeric Derivatives of Diacylglycerol-Lactones as Protein Kinase C Ligands. Bioconjug Chem 2017; 28:2135-2144. [PMID: 28671468 DOI: 10.1021/acs.bioconjchem.7b00299] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Protein kinase C (PKC) mediates a central cellular signal transduction pathway involved in disorders such as cancer and Alzheimer's disease. PKC is regulated by binding of the second messenger sn-1,2-diacylglycerol (DAG) to its tandem C1 domains, designated C1a and C1b, leading both to PKC activation and to its translocation to the plasma membrane and to internal organelles. Depending on the isoform, there may be differences in the ligand selectivity of the C1a and C1b domains, and there is different spacing between the C1 domains of the conventional and novel PKCs. Bivalent ligands have the potential to exploit these differences between isoforms, yielding isoform selectivity. In the present study, we describe the synthesis of a series of dimeric derivatives of conformationally constrained diacylglycerol (DAG) analogs (DAG-lactones). We characterize the derivatives in vitro for their binding affinities, both to a single C1 domain (the C1b domain of PKCδ) as well as to the conventional PKCα isoform and the novel PKCδ isoform, and we measure their abilities to cause translocation of PKCδ and PKCε in intact cells. The dimeric compound with the 10-carbon linker was modestly more effective for the isolated PKCδ C1b domain than was the monomeric compound. For the intact PKCα and PKCδ, the shortest DAG-lactone dimer had similar affinity to the monomer and affinity decreased progressively up to the 16-carbon linker. The dimeric derivatives did not cause the Golgi accumulation of PKCδ. The present results provide important insights into the development of new chemical tools for biological studies on PKC.
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Affiliation(s)
- Nami Ohashi
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University , 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Ryosuke Kobayashi
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University , 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Wataru Nomura
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University , 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takuya Kobayakawa
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University , 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Agnes Czikora
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Brienna K Herold
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Nancy E Lewin
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Peter M Blumberg
- Laboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Hirokazu Tamamura
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University , 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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30
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Mizuguchi T, Ohashi N, Matsumoto D, Hashimoto C, Nomura W, Yamamoto N, Murakami T, Tamamura H. Development of anti-HIV peptides based on a viral capsid protein. Biopolymers 2017; 108. [PMID: 27428649 DOI: 10.1002/bip.22920] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 07/11/2016] [Accepted: 07/14/2016] [Indexed: 01/01/2023]
Abstract
Peptide inhibitors with cell permeability targeting an HIV-1 capsid (CA) protein might make therapeutic by regulating HIV-1 replication. Overlapping fragment peptide libraries covering the whole sequence of an HIV-1 CA protein have been synthesized with the addition of an octa-arginyl moiety to increase their cell permeability. Amongst these peptides, several compounds which inhibit the HIV-1 replication cycle have been found. Conjugation of cell-penetrating functions such as an octa-arginyl group to individual peptides in combination with the addition of chloroquine in cell-based anti-HIV assays was previously proven to be a useful assay method with which to search for active peptides. Anti-HIV assays have been performed in the presence or absence of chloroquine and found that most of compounds have higher anti-HIV activity in the presence, rather than in the absence of chloroquine. Some potent seeds as anti-HIV agents might naturally lie hidden in CA proteins, and could become useful leads to HIV inhibitors.
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Affiliation(s)
- Takaaki Mizuguchi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Daichi Matsumoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Chie Hashimoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Wataru Nomura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Naoki Yamamoto
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Tsutomu Murakami
- AIDS Research Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo, 101-0062, Japan
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31
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Yoshida T, Furutani K, Watanabe Y, Ohashi N, Baba H. Analgesic efficacy of bilateral continuous transversus abdominis plane blocks using an oblique subcostal approach in patients undergoing laparotomy for gynaecological cancer: a prospective, randomized, triple-blind, placebo-controlled study. Br J Anaesth 2016; 117:812-820. [DOI: 10.1093/bja/aew339] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2016] [Indexed: 01/22/2023] Open
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Kodaira M, Sekijima Y, Ohashi N, Takahashi Y, Ueno K, Miyazaki D, Ikeda S. Squatting-induced bilateral peroneal nerve palsy in a sewer pipe worker. Occup Med (Lond) 2016; 67:75-77. [DOI: 10.1093/occmed/kqw133] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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34
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Ohashi N, Harada S, Mizuguchi T, Irahara Y, Yamada Y, Kotani M, Nomura W, Matsushita S, Yoshimura K, Tamamura H. Small-Molecule CD4 Mimics Containing Mono-cyclohexyl Moieties as HIV Entry Inhibitors. ChemMedChem 2016; 11:940-6. [PMID: 26891461 DOI: 10.1002/cmdc.201500590] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Indexed: 12/25/2022]
Abstract
CD4 mimics are small molecules that inhibit the protein-protein interaction between gp120 and CD4, which is a key interaction for the entry of human immunodeficiency virus (HIV) into host immune cells. In the present study, mono-cyclohexyl-type CD4 mimics were designed to form hydrophobic and electrostatic interactions with Val430 and Asp368 located in the entrance of the Phe43 cavity of gp120, the interaction site of CD4. YIR-329, a novel 1-azaspiro[5.5]undecane derivative with a cyclohexyl ring attached to the piperidine ring, exhibited only slightly weaker anti-HIV activity than a previously described lead HAR-171, and modeling results indicated the formation of advantageous interactions by the para-chlorophenyl moiety of YIR-329. To introduce an electrostatic interaction with Asp368, derivatives with a guanidino group on the piperidine nitrogen atom were synthesized. Mono-cyclohexyl-type CD4 mimics with a guanidino group, such as YIR-819 (N(1) -(4-chlorophenyl)-N(2) -(1-(2-(N-(amidino)glycinamide)ethyl)-2-cyclohexylpiperidin-4-yl)oxalamide) and YIR-821 (1-(2-(5-guanidinovaleramide)ethyl derivative of YIR-819), were identified that exhibit approximately fivefold more potent anti-HIV activity than YIR-329. In combination with a neutralizing antibody, their anti-HIV activities were augmenting. Modeling results suggest that these compounds interact effectively with Val430 and either Asp368 or Asp474 in the gp120 Phe43 cavity. YIR-819 and YIR-821 represent useful lead compounds for the further development of HIV-1 entry inhibitors and could potentially be useful for co-administration with neutralizing antibodies for the treatment of HIV infection and AIDS.
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Affiliation(s)
- Nami Ohashi
- Institute of Biomaterials & Bioengineering, Tokyo Medical & Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Shigeyoshi Harada
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Takaaki Mizuguchi
- Institute of Biomaterials & Bioengineering, Tokyo Medical & Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Yu Irahara
- Institute of Biomaterials & Bioengineering, Tokyo Medical & Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Yuko Yamada
- Institute of Biomaterials & Bioengineering, Tokyo Medical & Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan.,Pharmaceutical Department, Keio University Hospital, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Misato Kotani
- Institute of Biomaterials & Bioengineering, Tokyo Medical & Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Wataru Nomura
- Institute of Biomaterials & Bioengineering, Tokyo Medical & Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Shuzo Matsushita
- Center for AIDS Research, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Kazuhisa Yoshimura
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan.
| | - Hirokazu Tamamura
- Institute of Biomaterials & Bioengineering, Tokyo Medical & Dental University, 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan.
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35
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Zhou L, Holt MT, Ohashi N, Zhao A, Müller MM, Wang B, Muir TW. Evidence that ubiquitylated H2B corrals hDot1L on the nucleosomal surface to induce H3K79 methylation. Nat Commun 2016; 7:10589. [PMID: 26830124 PMCID: PMC4740876 DOI: 10.1038/ncomms10589] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 12/31/2015] [Indexed: 12/28/2022] Open
Abstract
Ubiquitylation of histone H2B at lysine 120 (H2B-Ub), a post-translational modification first discovered in 1980, plays a critical role in diverse nuclear processes including the regulation of transcription and DNA damage repair. Herein, we use a suite of protein chemistry methods to explore how H2B-Ub stimulates hDot1L-mediated methylation of histone H3 on lysine 79 (H3K79me). By using semisynthetic 'designer' chromatin containing H2B-Ub bearing a site-specifically installed photocrosslinker, here we report an interaction between a functional hotspot on ubiquitin and the N-terminus of histone H2A. Our biochemical studies indicate that this interaction is required for stimulation of hDot1L activity and leads to a repositioning of hDot1L on the nucleosomal surface, which likely places the active site of the enzyme proximal to H3K79. Collectively, our data converge on a possible mechanism for hDot1L stimulation in which H2B-Ub physically 'corrals' the enzyme into a productive binding orientation.
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Affiliation(s)
- Linjiao Zhou
- Department of Chemistry, Princeton University, Princeton, 08544 New Jersey, USA
| | - Matthew T Holt
- Laboratory of Synthetic Protein Chemistry, The Rockefeller University, New York, 10065 New York, USA
| | - Nami Ohashi
- Department of Chemistry, Princeton University, Princeton, 08544 New Jersey, USA
| | - Aishan Zhao
- Department of Chemistry, Princeton University, Princeton, 08544 New Jersey, USA
| | - Manuel M Müller
- Department of Chemistry, Princeton University, Princeton, 08544 New Jersey, USA
| | - Boyuan Wang
- Department of Chemistry, Princeton University, Princeton, 08544 New Jersey, USA.,Laboratory of Synthetic Protein Chemistry, The Rockefeller University, New York, 10065 New York, USA
| | - Tom W Muir
- Department of Chemistry, Princeton University, Princeton, 08544 New Jersey, USA
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36
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Yamauchi M, Maruyama S, Ohashi N, Toyabe K, Matsumoto Y. Epitaxial growth of atomically flat KBr(111) films via a thin film ionic liquid in a vacuum. CrystEngComm 2016. [DOI: 10.1039/c6ce00620e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Mizuguchi T, Ohashi N, Nomura W, Komoriya M, Hashimoto C, Yamamoto N, Murakami T, Tamamura H. Anti-HIV screening for cell-penetrating peptides using chloroquine and identification of anti-HIV peptides derived from matrix proteins. Bioorg Med Chem 2015; 23:4423-4427. [PMID: 26094944 DOI: 10.1016/j.bmc.2015.06.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Revised: 06/06/2015] [Accepted: 06/08/2015] [Indexed: 11/17/2022]
Abstract
Previously, compounds which inhibit the HIV-1 replication cycle were found in overlapping peptide libraries covering the whole sequence of an HIV-1 matrix (MA) protein constructed with the addition of an octa-arginyl group. The two top lead compounds are sequential fragments MA-8L and MA-9L. In the present study, the addition of chloroquine in cell-based anti-HIV assays was proven to be an efficient method with which to find anti-HIV compounds among several peptides conjugated by cell-penetrating signals such as an octa-arginyl group: the conjugation of an octa-arginyl group to individual peptides contained in whole proteins in combination with the addition of chloroquine in cells is a useful assay method to search active peptides. To find more potent fragment peptides, individual peptides between MA-8L and MA-9L, having the same peptide chain length but with sequences shifted by one amino acid residue, were synthesized in this paper and their anti-HIV activity was evaluated with an anti-HIV assay using chloroquine. As a result, the peptides in the C-terminal side of the series, which are relatively close to MA-9L, showed more potent inhibitory activity against both X4-HIV-1 and R5-HIV-1 than the peptides in the N-terminal side.
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Affiliation(s)
- Takaaki Mizuguchi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Wataru Nomura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Mao Komoriya
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Chie Hashimoto
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Naoki Yamamoto
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Tsutomu Murakami
- AIDS Research Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan.
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo 101-0062, Japan.
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Nomura W, Ohashi N, Mori A, Tamamura H. An In-Cell Fluorogenic Tag–Probe System for Protein Dynamics Imaging Enabled by Cell-Penetrating Peptides. Bioconjug Chem 2015; 26:1080-5. [DOI: 10.1021/acs.bioconjchem.5b00131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wataru Nomura
- Institute of Biomaterials
and Bioengineering, Tokyo Medical and Dental University 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Nami Ohashi
- Institute of Biomaterials
and Bioengineering, Tokyo Medical and Dental University 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Atsumi Mori
- Institute of Biomaterials
and Bioengineering, Tokyo Medical and Dental University 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Hirokazu Tamamura
- Institute of Biomaterials
and Bioengineering, Tokyo Medical and Dental University 2-3-10 Kandasurugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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39
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Morisawa T, Takahashi T, Hori N, Ohashi N, Ide T, Takeda K, Nishi S. Effects of lower limbs and trunk passive exercise on intestinal movement after cardiovascular surgery. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Ohashi N, Watanabe Y, Mizukoshi K, Ino H. Normal predictive function in smooth pursuit. Adv Otorhinolaryngol 2015; 41:118-21. [PMID: 3213694 DOI: 10.1159/000416043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- N Ohashi
- Department of Otolaryngology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan
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41
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Mizukoshi K, Kobayashi H, Ohashi N, Watanabe Y. Visual modulatory influences of vestibulo-ocular reflex in patients with vertigo. Adv Otorhinolaryngol 2015; 41:63-70. [PMID: 3213712 DOI: 10.1159/000416033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- K Mizukoshi
- Department of Otolaryngology, Toyama Medical and Pharmaceutical University, Japan
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42
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Nomura W, Koseki T, Ohashi N, Mizuguchi T, Tamamura H. Trivalent ligands for CXCR4 bearing polyproline linkers show specific recognition for cells with increased CXCR4 expression. Org Biomol Chem 2015; 13:8734-9. [DOI: 10.1039/c5ob00891c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The trivalent ligand with rigid linkers designed for exploration of GPCR multimerization shows specific recognition for overexpressed CXCR4.
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Affiliation(s)
- Wataru Nomura
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Taisuke Koseki
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Nami Ohashi
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Takaaki Mizuguchi
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
| | - Hirokazu Tamamura
- Institute of Biomaterials and Bioengineering
- Tokyo Medical and Dental University
- Tokyo 101-0062
- Japan
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43
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Ohashi N, Nomura W, Minato N, Tamamura H. Screening for protein kinase C ligands using fluorescence resonance energy transfer. Chem Pharm Bull (Tokyo) 2014; 62:1019-25. [PMID: 25109829 DOI: 10.1248/cpb.c14-00419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Protein kinase C (PKC) is correlated with cell signaling pathways and also receives attention as a therapeutic target for cancer and Alzheimer-type dementia. The application of Förster/fluorescence resonance energy transfer (FRET) phenomena to detect binding between proteins and small molecules, for example, PKC and its ligands, underlies a fluorescence-based assay method suitable for high-throughput screening. To accelerate studies on PKC functions in processing signals using small molecules and the development of drugs that target PKC, novel methods for the assessment of the PKC binding affinity of compounds are necessary. We previously developed solvatochromic fluorophore-based methods for that assessment. In this study, a novel method for a FRET-based PKC binding assay was developed and is expected to overcome the limitations of solvatochromic fluorophores.
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Affiliation(s)
- Nami Ohashi
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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44
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Kuma A, Yamada S, Miyamoto T, Serino R, Tamura M, Otsuji Y, Kohno K, Cho WY, Kim MG, Jo SK, Kim HK, Jado JC, Humanes B, Lopez-Parra V, Camano S, Lara JM, Cercenado E, Tejedor A, Lazaro A, Jansen M, Castellano G, Stasi A, Intini A, Gigante M, Di Palma AM, Divella C, Netti GS, Prattichizzo C, Pontrelli P, Crovace A, Staffieri F, Fiaccadori E, Brienza N, Grandaliano G, Pertosa GB, Gesualdo L, Xanthopoulou K, Tsouchnikas I, Ouzounidis G, Kokaraki G, Lagoudaki R, Simeonidou C, Karkavelas G, Spandou E, Tsakiris D, Xanthopoulou K, Tsouchnikas I, Ouzounidis G, Kokaraki G, Simeonidou C, Karkavelas G, Spandou E, Kallaras K, Tsakiris D, Schneider R, Meusel M, Betz BB, Held C, Moller-Ehrlich K, Buttner-Herold M, Wanner C, Michael G, Sauvant C, Hosszu A, Antal Z, Hodrea J, Koszegi S, Banki NF, Wagner L, Lenart L, Vannay A, Szabo AJ, Fekete A, Michael A, Faga T, Navarra M, Andreucci M, Lemoine S, Pillot B, Rabeyrin M, Varennes A, Ovize M, Juillard L, Gomes Santana L, Silva Almeida W, Schor N, Watanabe M, Fonseca CD, Pessoa EA, Mendonca MH, Fernandes SM, Borges FT, Vattimo MF, Ow CPC, Tassone F, Koeners MP, Malpas SC, Evans RG, Alfarano C, Guardia MA, Lluel P, Palea S, Young GH, Wu VC, Choi DE, Jeong JY, Chang YK, Chung S, Na KR, Kim SS, Lee KW, Choi DE, Jeong JY, Chung S, Chang YK, Na KR, Kim SS, Lee KW, Yang Y, Zhang L, Fu P, Zhao Y, Zhang X, Jadot I, Decleves AE, Colombaro V, Martin B, Voisin V, Habsch I, Deprez E, Nortier J, Caron N, Iwakura T, Fujikura T, Ohashi N, Yasuda H, Fujigaki Y, Vasco CF, Watanabe M, Fonseca CD, Vattimo MDFF, Draibe J, Y ld r m Y, Aba O, Y lmaz Z, Kadiroglu AK, Y lmaz ME, Gul M, Ketani A, Colpan L, Neiva LBDM, Borges FT, Fonseca CD, Watanabe M, Vattimo MDFF, Suller Garcia J, Oliveira ASD, Naves MA, Borges FT, Schor N, Van Swelm RPL, Wetzels JFM, Verweij VGM, Laarakkers CMM, Pertijs JCLM, Swinkels DW, Masereeuw R, Sereno J, Rodrigues-Santos P, Vala H, Rocha-Pereira P, Fernandes J, Santos-Silva A, Teixeira F, Reis F, Altuntas A, Yilmaz HR, Altuntas A, Uz E, Demir M, Gokcimen A, Bayram DS, Aksu O, Sezer MT, Yang KH, Jung YJ, Kim D, Lee AS, Lee S, Kang KP, Park SK, Kim W, Junglee NA, Searell CR, Jibani MM, Macdonald JH, Wu CC, Chen CC, Lu KC, Lin YF, Estrela GR, Wasinski F, Pereira R, Malheiros D, Camara NOS, Araujo RC, Ramos MF, Passos CDS, Razvickas CV, Borges F, Ormanji M, Schor N, Plotnikov E, Morosanova M, Pevzner I, Zorova L, Manskikh V, Skulachev M, Skulachev V, Zorov D, Pinto CF, Watanabe M, Fonseca CD, Vattimo M. EXPERIMENTAL ACUTE KIDNEY INJURY. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Narumi T, Takano H, Ohashi N, Suzuki A, Furuta T, Tamamura H. Isostere-based design of 8-azacoumarin-type photolabile protecting groups: a hydrophilicity-increasing strategy for coumarin-4-ylmethyls. Org Lett 2014; 16:1184-7. [PMID: 24495035 DOI: 10.1021/ol5000583] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Described is the development of 8-azacoumarin-4-ylmethyl groups as aqueous photolabile protecting groups. A key feature of the strategy is the isosteric replacement of the C7-C8 enol double bond of the Bhc derivative with an amide bond, resulting in conversion of the chromophore from coumarin to 8-azacoumarin. This strategy makes dramatically enhanced water solubility and facile photocleavage possible.
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Affiliation(s)
- Tetsuo Narumi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University , Chiyoda-ku, Tokyo 101-0062, Japan
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Yoshida T, Fujiwara T, Furutani K, Ohashi N, Baba H. Effects of ropivacaine concentration on the spread of sensory block produced by continuous thoracic paravertebral block: a prospective, randomised, controlled, double-blind study. Anaesthesia 2014; 69:231-9. [DOI: 10.1111/anae.12531] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2013] [Indexed: 11/30/2022]
Affiliation(s)
- T. Yoshida
- Division of Anesthesiology; Niigata University Graduate School of Medical and Dental Sciences; Niigata-city Japan
| | - T. Fujiwara
- Division of Anesthesiology; Niigata University Graduate School of Medical and Dental Sciences; Niigata-city Japan
| | - K. Furutani
- Division of Anesthesiology; Niigata University Graduate School of Medical and Dental Sciences; Niigata-city Japan
| | - N. Ohashi
- Division of Anesthesiology; Niigata University Graduate School of Medical and Dental Sciences; Niigata-city Japan
| | - H. Baba
- Division of Anesthesiology; Niigata University Graduate School of Medical and Dental Sciences; Niigata-city Japan
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47
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Higa M, Tanaka Y, Ohashi N, Kishimoto A, Yasuda N. Evaluation of mucosal immune function following habitual handball training in female collegiate players. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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48
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Kishimoto A, Tanaka Y, Ohashi N, Higa M, Yasuda N. Effects of habitual handball training on urinary albumin excretion in female collegiate players. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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49
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Nomura W, Aikawa H, Ohashi N, Urano E, Métifiot M, Fujino M, Maddali K, Ozaki T, Nozue A, Narumi T, Hashimoto C, Tanaka T, Pommier Y, Yamamoto N, Komano JA, Murakami T, Tamamura H. Cell-permeable stapled peptides based on HIV-1 integrase inhibitors derived from HIV-1 gene products. ACS Chem Biol 2013; 8:2235-44. [PMID: 23898787 DOI: 10.1021/cb400495h] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
HIV-1 integrase (IN) is an enzyme which is indispensable for the stable infection of host cells because it catalyzes the insertion of viral DNA into the genome and thus is an attractive target for the development of anti-HIV agents. Earlier, we found Vpr-derived peptides with inhibitory activity against HIV-1 IN. These Vpr-derived peptides are originally located in an α-helical region of the parent Vpr protein. Addition of an octa-arginyl group to the inhibitory peptides caused significant inhibition against HIV replication associated with an increase in cell permeability but also relatively high cytotoxicity. In the current study, stapled peptides, a new class of stabilized α-helical peptidomimetics were adopted to enhance the cell permeability of the above lead peptides. A series of stapled peptides, which have a hydrocarbon link formed by a ruthenium-catalyzed ring-closing metathesis reaction between successive turns of α-helix, were designed, synthesized, and evaluated for biological activity. In cell-based assays some of the stapled peptides showed potent anti-HIV activity comparable with that of the original octa-arginine-containing peptide (2) but with lower cytotoxicity. Fluorescent imaging experiments revealed that these stapled peptides are significantly cell permeable, and CD analysis showed they form α-helical structures, whereas the unstapled congeners form β-sheet structures. The application of this stapling strategy to Vpr-derived IN inhibitory peptides led to a remarkable increase in their potency in cells and a significant reduction of their cytotoxicity.
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Affiliation(s)
- Wataru Nomura
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Haruo Aikawa
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Nami Ohashi
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Emiko Urano
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640,
Japan
| | - Mathieu Métifiot
- Laboratory of Molecular
Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892-4255, United States
| | - Masayuki Fujino
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640,
Japan
| | - Kasthuraiah Maddali
- Laboratory of Molecular
Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892-4255, United States
| | - Taro Ozaki
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Ami Nozue
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tetsuo Narumi
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Chie Hashimoto
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tomohiro Tanaka
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yves Pommier
- Laboratory of Molecular
Pharmacology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892-4255, United States
| | - Naoki Yamamoto
- Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Jun A. Komano
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640,
Japan
- Department of Infectious Diseases, Osaka Prefectural Institute of Public Health, 1-3-69
Nakamichi, Higashinari-ku, Osaka 537-0025, Japan
| | - Tsutomu Murakami
- AIDS Research Center, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640,
Japan
| | - Hirokazu Tamamura
- Department of Medicinal Chemistry, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kandasurugadai,
Chiyoda-ku, Tokyo 101-0062, Japan
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50
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Ohashi N, Nomura W, Narumi T, Tamamura H. Peptide-based ligand screening and functional analysis of protein kinase C. Biopolymers 2013; 100:613-20. [PMID: 23897302 DOI: 10.1002/bip.22324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 04/11/2013] [Accepted: 06/04/2013] [Indexed: 11/06/2022]
Abstract
Protein kinase C (PKC) plays an important role in cell signaling pathways and is implicated in disorders ranging from cancer to Alzheimer's disease. Highly potent PKC ligands as therapeutic drugs have not been developed to date and useful methodologies for controlling PKC activation in defined areas are necessary to analyze precise PKC functions in cells. Studies focused on the development of PKC ligand screening systems and methods for regulation of PKC activation have been performed in our laboratory. In this review, our ligand screening methods involving synthetic peptides and solvatochromic fluorescent dye-labeled small compounds are summarized and the technique of spatio-temporal manipulation of PKC activation by caging strategies is introduced.
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Affiliation(s)
- Nami Ohashi
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Chiyoda-ku, Tokyo, 101-0062, Japan
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