1
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Lyu F, Tomita T, Abe N, Hiraoka H, Hashiya F, Nakashima Y, Kajihara S, Tomoike F, Shu Z, Onizuka K, Kimura Y, Abe H. Topological capture of mRNA for silencing gene expression. Chem Commun (Camb) 2023; 59:11564-11567. [PMID: 37682012 DOI: 10.1039/d2cc06189a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
We describe herein topological mRNA capture using branched oligodeoxynucleotides (ODNs) with multiple reactive functional groups. These fragmented ODNs efficiently formed topological complexes on template mRNA in vitro. In cell-based experiments targeting AcGFP mRNA, the bifurcated reactive ODNs showed a much larger gene silencing effect than the corresponding natural antisense ODN.
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Affiliation(s)
- Fangjie Lyu
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Takashi Tomita
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Naoko Abe
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Haruka Hiraoka
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Fumitaka Hashiya
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Yuko Nakashima
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Shiryu Kajihara
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Fumiaki Tomoike
- Research Center for Materials Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
| | - Zhaoma Shu
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Kazumitsu Onizuka
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Yasuaki Kimura
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
| | - Hiroshi Abe
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan.
- Research Center for Materials Science, Nagoya University, Furo, Chikusa, Nagoya 464-8602, Japan
- CREST, Japan Science and Technology Agency, 7, Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan
- Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
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2
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Nagatsugi F, Onizuka K. Selective Chemical Modification to the Higher-Order Structures of Nucleic Acids. CHEM REC 2023; 23:e202200194. [PMID: 36111635 DOI: 10.1002/tcr.202200194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/31/2022] [Indexed: 11/06/2022]
Abstract
DNA and RNA can adopt a variety of stable higher-order structural motifs, including G-quadruplex (G4 s), mismatches, and bulges. Many of these secondary structures are closely related to the regulation of gene expression. Therefore, the higher-order structure of nucleic acids is one of the candidate therapeutic targets, and the development of binding molecules targeting the higher-order structure of nucleic acids has been pursued vigorously. Furthermore, as one of the methodologies for detecting the higher-order structures of these nucleic acids, developing techniques for the selective chemical modification of the higher-order structures of nucleic acids is also underway. In this personal account, we focus on the following higher-order structures of nucleic acids, double-stranded DNA containing the abasic site, T-T/U-U mismatch structure, and G-quadruplex structure, and describe the development of molecules that bind to and chemically modify these structures.
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Affiliation(s)
- Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan.,Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, 980-8578, Japan
| | - Kazumitsu Onizuka
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan.,Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai, 980-8578, Japan.,Division for the Establishment of Frontier Sciences of Organization for Advanced Studies, Tohoku University, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
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3
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Onizuka K, Yamano Y, Abdelhady AM, Nagatsugi F. Hybridization-specific chemical reactions to create interstrand crosslinking and threaded structures of nucleic acids. Org Biomol Chem 2022; 20:4699-4708. [PMID: 35622064 DOI: 10.1039/d2ob00551d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interstrand crosslinking and threaded structures of nucleic acids have high potential in oligonucleotide therapeutics, chemical biology, and nanotechnology. For example, properly designed crosslinking structures provide high activity and nuclease resistance for anti-miRNAs. The noncovalent labeling and modification by the threaded structures are useful as new chemical biology tools. Photoreversible crosslinking creates smart materials, such as reversible photoresponsive gels and DNA origami objects. This review introduces the creation of interstrand crosslinking and threaded structures, such as catenanes and rotaxanes, based on hybridization-specific chemical reactions and their functions and perspectives.
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Affiliation(s)
- Kazumitsu Onizuka
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan. .,Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan.,Division for the Establishment of Frontier Sciences of Organization for Advanced Studies, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Yuuhei Yamano
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
| | - Ahmed Mostafa Abdelhady
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan. .,Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan.,Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan. .,Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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4
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Abdelhady AM, Hirano Y, Onizuka K, Okamura H, Komatsu Y, Nagatsugi F. Synthesis of crosslinked 2'-OMe RNA duplexes and their application for effective inhibition of miRNA function. Bioorg Med Chem Lett 2021; 48:128257. [PMID: 34246752 DOI: 10.1016/j.bmcl.2021.128257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/04/2021] [Accepted: 07/05/2021] [Indexed: 11/24/2022]
Abstract
The interstrand crosslinking of nucleic acids is one of the strategies to create the stable complex between an oligonucleotide and RNA by covalent bond formation. We previously reported that fully 2'-O-methylated (2'-OMe) RNAs having the 2-amino-6-vinylpurine (AVP) exhibited an efficient crosslinking to uracil in the target RNA. In this study, we established a chemical method to efficiently synthesize the crosslinked 2'-OMe RNA duplexes using AVP and prepared the anti-miRNA oligonucleotides (AMOs) containing the antisense targeting miR-21 and crosslinked duplex at the terminal sequences. These AMOs showed a markedly higher anti miRNA activity than that of the commercially-available miR-21 inhibitor which has locked nucleic acid (LNA) residues.
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Affiliation(s)
- Ahmed Mostafa Abdelhady
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan; Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan; Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, 11884 Cairo, Egypt
| | - Yu Hirano
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2-17-2-1 Tsukisamu-Higashi, Toyohira-ku, Sapporo 062-8517, Japan
| | - Kazumitsu Onizuka
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan; Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan; Division for the Establishment of Frontier Sciences of Organization for Advanced Studies, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Hidenori Okamura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan; Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Yasuo Komatsu
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2-17-2-1 Tsukisamu-Higashi, Toyohira-ku, Sapporo 062-8517, Japan
| | - Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan; Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan.
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5
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Affiliation(s)
- Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Kazumitsu Onizuka
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
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6
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Kikuta K, Taniguchi Y, Sasaki S. Study of the Inducible Cross-Linking Reaction to mRNA and the Effect on the Translation. Chem Pharm Bull (Tokyo) 2019; 67:877-883. [PMID: 31366836 DOI: 10.1248/cpb.c19-00337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The 4-vinylpyrimidin-2-one nucleoside (T-vinyl) forms a cross-link with the RNA containing uracil at the complementary site at a high reaction rate. To obtain the stable T-vinyl derivative so that its reactivity is protected until it access to the target site, several derivatives were investigated, and the 2-thiopyridinyl- and 2-thiopyrimidinyl T-vinyl derivatives were determined to be good candidates. The 2-thiopyrimidinyl T-vinyl derivative was found to more efficiently cross-link with mRNA albeit having a better stability than the 2-thiopyridinyl T-vinyl derivative. The investigation using the luciferase (Luc) mRNA, the synthetic mRNA and non-cellular translation system revealed that the translation is terminated at the end of the cross-linked duplex between the mRNA and the oligoribonucleotide (ORN). Thus, the 2-thiopyrimidinyl T-vinyl derivative has successfully demonstrated both a good stability and high efficiency for the cross-linking reaction, and expanded its applicability in biological applications.
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Affiliation(s)
- Kenji Kikuta
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | - Shigeki Sasaki
- Graduate School of Pharmaceutical Sciences, Kyushu University
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7
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Yamada K, Abe Y, Murase H, Ida Y, Hagihara S, Nagatsugi F. Synthesis and Properties of 2′-OMe-RNAs Modified with Cross-Linkable 7-Deazaguanosine Derivatives. J Org Chem 2018; 83:8851-8862. [DOI: 10.1021/acs.joc.8b01002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ken Yamada
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi 980-8577, Japan
| | - Yusuke Abe
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi 980-8577, Japan
| | - Hirotaka Murase
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi 980-8577, Japan
| | - Yuta Ida
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi 980-8577, Japan
| | - Shinya Hagihara
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi 980-8577, Japan
| | - Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi 980-8577, Japan
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8
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Onizuka K, Hazemi ME, Thomas JM, Monteleone LR, Yamada K, Imoto S, Beal PA, Nagatsugi F. Synthesis of native-like crosslinked duplex RNA and study of its properties. Bioorg Med Chem 2017; 25:2191-2199. [PMID: 28268052 PMCID: PMC5969911 DOI: 10.1016/j.bmc.2017.02.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 02/13/2017] [Accepted: 02/15/2017] [Indexed: 02/08/2023]
Abstract
A variety of enzymes have been found to interact with double-stranded RNA (dsRNA) in order to carry out its functions. We have endeavored to prepare the covalently crosslinked native-like duplex RNA, which could be useful for biochemical studies and RNA nanotechnology. In this study, the interstrand covalently linked duplex RNA was formed by a crosslinking reaction between vinylpurine (VP) and the target cytosine or uracil in RNA. We measured melting temperatures and CD spectra to identify the properties of the VP crosslinked duplex RNA. The crosslinking formation increased the thermodynamic stability without disturbing the natural conformation of dsRNA. In addition, a competitive binding experiment with the duplex RNA binding enzyme, ADAR2, showed the crosslinked dsRNA bound the protein with nearly the same binding affinity as the natural dsRNA, confirming that it has finely preserved the natural traits of duplex RNA.
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Affiliation(s)
- Kazumitsu Onizuka
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Madoka E Hazemi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Justin M Thomas
- Department of Chemistry, University of California, Davis, One Shields Ave, Davis, CA 95616, USA
| | - Leanna R Monteleone
- Department of Chemistry, University of California, Davis, One Shields Ave, Davis, CA 95616, USA
| | - Ken Yamada
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Kumamoto 860-0082, Japan
| | - Peter A Beal
- Department of Chemistry, University of California, Davis, One Shields Ave, Davis, CA 95616, USA
| | - Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
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9
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Akisawa T, Yamada K, Nagatsugi F. Synthesis of peptide nucleic acids (PNA) with a crosslinking agent to RNA and effective inhibition of dicer. Bioorg Med Chem Lett 2016; 26:5902-5906. [PMID: 27838183 DOI: 10.1016/j.bmcl.2016.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 10/29/2016] [Accepted: 11/01/2016] [Indexed: 12/18/2022]
Abstract
Peptide nucleic acids (PNAs) are structural mimics of nucleic acids that form stable hybrids with DNA and RNA. Due to these characteristics, PNAs are widely used as biochemical tools, for example, in antisense/antigene therapy. In this study, we have synthesized PNAs incorporating 2-amino-6-vinylpurine (AVP) for the covalent targeting of single-stranded DNA and RNA, and evaluated their reactivities for these targets. PNA containing AVP at the N-terminal position showed a high reactivity to uracil in RNA and thymine in DNA at the complementary site with AVP. In addition, the crosslinking reactions to pre-miR122 with PNA containing AVP increased the inhibition effect for the Dicer processing of pre-miR122 in vitro.
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Affiliation(s)
- Takuya Akisawa
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi 980-8577, Japan
| | - Ken Yamada
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi 980-8577, Japan
| | - Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi 980-8577, Japan.
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10
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Yamashita S, Bergmann D, Sato A, Nomoto M, Tada Y, Humpf HU, Itami K, Hagihara S. High-throughput Assay for Quantification of Aminoglycoside–Ribosome Interaction. CHEM LETT 2016. [DOI: 10.1246/cl.160508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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11
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Sato N, Tsuji G, Sasaki Y, Usami A, Moki T, Onizuka K, Yamada K, Nagatsugi F. A new strategy for site-specific alkylation of DNA using oligonucleotides containing an abasic site and alkylating probes. Chem Commun (Camb) 2016; 51:14885-8. [PMID: 26304997 DOI: 10.1039/c5cc03915k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Selective chemical reactions with DNA, such as its labelling, are very useful in many applications. In this paper, we discuss a new strategy for the selective alkylation of DNA using an oligonucleotide containing an abasic site and alkylating probes. We designed three probes consisting of 2-AVP as a reactive moiety and three kinds of binding moiety with high affinity to duplex DNA. Among these probes, Hoechst-AVP probe exhibited high selectivity and efficient reactivity to thymine bases at the site opposite an abasic site in DNA. Our method is potentially useful for inducing site-directed reactions aimed at inhibiting polymerase reactions.
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Affiliation(s)
- Norihiro Sato
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, 980-8577, Japan.
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12
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Kusano S, Ishiyama S, Lam SL, Mashima T, Katahira M, Miyamoto K, Aida M, Nagatsugi F. Crosslinking reactions of 4-amino-6-oxo-2-vinylpyrimidine with guanine derivatives and structural analysis of the adducts. Nucleic Acids Res 2015; 43:7717-30. [PMID: 26245348 PMCID: PMC4652779 DOI: 10.1093/nar/gkv797] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 07/28/2015] [Indexed: 12/28/2022] Open
Abstract
DNA interstrand crosslinks (ICLs) are the primary mechanism for the cytotoxic activity of many clinical anticancer drugs, and numerous strategies for forming ICLs have been developed. One such method is using crosslink-forming oligonucleotides (CFOs). In this study, we designed a 4-amino-6-oxo-2-vinylpyrimidine (AOVP) derivative with an acyclic spacer to react selectively with guanine. The AOVP CFO exhibited selective crosslinking reactivity with guanine and thymine in DNA, and with guanine in RNA. These crosslinking reactions with guanine were accelerated in the presence of CoCl2, NiCl2, ZnCl2 and MnCl2. In addition, we demonstrated that the AOVP CFO was reactive toward 8-oxoguanine opposite AOVP in the duplex DNA. The structural analysis of each guanine and 8-oxoguanine adduct in the duplex DNA was investigated by high-resolution NMR. The results suggested that AOVP reacts at the N2 amine in guanine and at the N1 or N2 amines in 8-oxoguanine in the duplex DNA. This study demonstrated the first direct determination of the adduct structure in duplex DNA without enzyme digestion.
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Affiliation(s)
- Shuhei Kusano
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi 980-8577, Japan
| | - Shogo Ishiyama
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi 980-8577, Japan
| | - Sik Lok Lam
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Tsukasa Mashima
- Institute of Advanced Energy, Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Masato Katahira
- Institute of Advanced Energy, Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Kengo Miyamoto
- Department of Chemistry, Graduate School of Science, Hiroshima University,1-3-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Misako Aida
- Department of Chemistry, Graduate School of Science, Hiroshima University,1-3-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi 980-8577, Japan
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13
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Kusano S, Haruyama T, Ishiyama S, Hagihara S, Nagatsugi F. Development of the crosslinking reactions to RNA triggered by oxidation. Chem Commun (Camb) 2014; 50:3951-4. [DOI: 10.1039/c3cc49463b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In this paper, we have reported a novel oxidation triggered crosslinking nucleobase ATVP (1) and demonstrated that the oxidized form ASVP (2) showed a very fast and selective crosslinking reaction to cytosine in RNA.
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Affiliation(s)
- Shuhei Kusano
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai-shi, Japan
| | - Takuya Haruyama
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai-shi, Japan
| | - Shogo Ishiyama
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai-shi, Japan
| | - Shinya Hagihara
- Institute of Transformative Bio-Molecules (WPI-ITbM)
- Nagoya University
- Nagoya, Japan
| | - Fumi Nagatsugi
- Institute of Multidisciplinary Research for Advanced Materials
- Tohoku University
- Sendai-shi, Japan
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14
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Hagihara S, Lin WC, Kusano S, Chao XG, Hori T, Imoto S, Nagatsugi F. The Crosslink formation of 2'-OMe oligonucleotide containing 2-amino-6-vinylpurine protects mRNA from miRNA-mediated silencing. Chembiochem 2013; 14:1427-9. [PMID: 23893865 DOI: 10.1002/cbic.201300382] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Indexed: 12/21/2022]
Abstract
Masking the miRNA binding site: Crosslink-forming oligonucleotide (CFO) was used for target gene-specific inhibition of microRNA (miRNA) functions. This method can interfere with specific miRNA-mRNA interactions by recognizing sequences unique to the 3'-UTR that are inherent in each mRNA.
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Affiliation(s)
- Shinya Hagihara
- Institute of Transformative Bio-molecules, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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15
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Imoto S, Chikuni T, Kansui H, Kunieda T, Nagatsugi F. Fast DNA interstrand cross-linking reaction by 6-vinylpurine. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2013; 31:752-62. [PMID: 23067126 DOI: 10.1080/15257770.2012.726756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Oligonucleotides that incorporate a reactive moiety to form an interstrand cross-link have been widely studied for their potential toward inhibiting gene expression or as basic tools for chemical biology studies. The 6-vinylpurine (2) newly designed in the current study serves well as a new purine-base moiety for increasing cross-link reactivity to target cytosine. Thus, oligonucleotides containing 6-vinylpurine exhibit a more selective and much smoother DNA cross-linking ability to cytosine than the oligonucleotide analogs derived from 2-amino-6-vinylpurine (1) previously explored.
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Affiliation(s)
- Shuhei Imoto
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto-city, Kumamoto, Japan.
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