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Ma X, Shi L, Zhang B, Liu L, Fu Y, Zhang X. Recent advances in bioprobes and biolabels based on cyanine dyes. Anal Bioanal Chem 2022; 414:4551-4573. [PMID: 35359180 DOI: 10.1007/s00216-022-03995-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/19/2022] [Accepted: 02/28/2022] [Indexed: 11/30/2022]
Abstract
As a functional dye, cyanine dye promotes the widespread application of bioprobes in the fields of medicine, genetics and environment, owing to its advantages of good photophysical properties, excellent biocompatibility and low toxicity to biological systems. Nowadays, it is mainly used in the fields of life sciences such as fluorescent labeling of biological macromolecules, disease diagnosis, immunoassay and DNA detection, all of which lie at the core of this review. First, we briefly introduced the characteristics and principles of the cyanine dye bioprobe. Afterward, we paid attention to the recent progress of cyanine dye bioprobes widely used in the 10 years from 2010 to 2020. The application of cyanine dyes as bioprobes with different identification elements, including enzymes, organelles, immunity and DNAs, was mainly summarized. Finally, this review gave an outlook on the future development trend of cyanine dye bioprobes. This facilitates the construction of a new type of multifunctional fluorescent probe and promotes its clinical application.
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Affiliation(s)
- Xiaoying Ma
- College of Chemical Engineering, Hebei and Tangshan Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, 063210, Tangshan, China
| | - Lei Shi
- College of Chemical Engineering, Hebei and Tangshan Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, 063210, Tangshan, China.
| | - Buyue Zhang
- College of Chemical Engineering, Hebei and Tangshan Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, 063210, Tangshan, China
| | - Lu Liu
- College of Chemical Engineering, Hebei and Tangshan Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, 063210, Tangshan, China
| | - Yao Fu
- College of Chemical Engineering, Hebei and Tangshan Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, 063210, Tangshan, China
| | - Xiufeng Zhang
- College of Chemical Engineering, Hebei and Tangshan Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, 063210, Tangshan, China.
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Gong YP, Yang J, Fang JW, Li Q, Yu ZY, Guan A, Gong HY. A DNA small molecular probe with increasing K + concentration promoted selectivity. RSC Adv 2021; 11:15030-15035. [PMID: 35424063 PMCID: PMC8697834 DOI: 10.1039/d0ra06274j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 03/28/2021] [Indexed: 11/21/2022] Open
Abstract
DNA small molecular probe study was considered as a promising approach to achieve DNA related disease diagnosis. Most related reports were performed under specific salinity. Herein, 4-imino-3-(pyridin-2-yl)-4H-quinolizine-1-carbonitrile (IPQC) was generated via a facile procedure with high yield (85%). It is found that IPQC could act as a universal probe for most tested ssDNA, dsDNA and G4 DNA in low [K+] concentration (less than 20 mM). However, IPQC showed highly selective G4 DNA binding via UV-vis and fluorescence response in increasing [K+] (e.g., 150 mM) conditions. The ion atmosphere effects are instructive for DNA probe exploration. This provides guidance for the design, selection and optimization of the probes for target DNA sensing. DNA small molecular probe study was considered as a promising approach to achieve DNA related disease diagnosis.![]()
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Affiliation(s)
- Ya-Ping Gong
- Department of Chemistry
- Renmin University of China
- Beijing
- P. R. China
- Institute of Chemistry
| | - Jian Yang
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
| | - Ji-Wang Fang
- Department of Chemistry
- Renmin University of China
- Beijing
- P. R. China
- College of Chemistry
| | - Qian Li
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Zhi-Yong Yu
- Department of Chemistry
- Renmin University of China
- Beijing
- P. R. China
| | - Aijiao Guan
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Han-Yuan Gong
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
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Pomeislová A, Vrzal L, Kozák J, Dobiaš J, Hubálek M, Dvořáková H, Reyes‐Gutiérrez PE, Teplý F, Veverka V. Kinetic Target-Guided Synthesis of Small-Molecule G-Quadruplex Stabilizers. ChemistryOpen 2020; 9:1236-1250. [PMID: 33304739 PMCID: PMC7713561 DOI: 10.1002/open.202000261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/02/2020] [Indexed: 12/25/2022] Open
Abstract
The formation of a G-quadruplex motif in the promoter region of the c-MYC protooncogene prevents its expression. Accordingly, G-quadruplex stabilization by a suitable ligand may be a viable approach for anticancer therapy. In our study, we used the 4-(4-methylpiperazin-1-yl)aniline molecule, previously identified as a fragment library screen hit, as a template for the SAR-guided design of a new small library of clickable fragments and subjected them to click reactions, including kinetic target-guided synthesis in the presence of a G-quadruplex forming oligonucleotide Pu24. We tested the clickable fragments and products of click reactions for their G-quadruplex stabilizing activity and determined their mode of binding to the c-MYC G-quadruplex by NMR spectroscopy. The enhanced stabilizing potency of click products in biology assays (FRET, Polymerase extension assay) matched the increased yields of in situ click reactions. In conclusion, we identified the newly synthesized click products of bis-amino derivatives of 4-(4-methylpiperazin-1-yl)aniline as potent stabilizers of c-MYC G-quadruplex, and their further evolution may lead to the development of an efficient tool for cancer treatment.
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Affiliation(s)
- Alice Pomeislová
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
- Department of Organic ChemistryCharles UniversityPragueCzech Republic
| | - Lukáš Vrzal
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
- NMR laboratoryUniversity of Chemistry and TechnologyPragueCzech Republic
| | - Jaroslav Kozák
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Juraj Dobiaš
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Martin Hubálek
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Hana Dvořáková
- NMR laboratoryUniversity of Chemistry and TechnologyPragueCzech Republic
| | - Paul E. Reyes‐Gutiérrez
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Filip Teplý
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
| | - Václav Veverka
- Institute of Organic Chemistry and BiochemistryThe Czech Academy of Sciences Flemingovo nam. 2PragueCzech Republic
- Department of Cell BiologyCharles UniversityPragueCzech Republic
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A thiamonomethinecyanine probe for detection of Pb2+ based on transformation from dimer to monomer by aptamer. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01389-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Disassembly of Dimeric Cyanine Dye Supramolecular Assembly by Tetramolecular G-quadruplex Dependence on Linker Length and Layers of G-quartet. Molecules 2019; 24:molecules24102015. [PMID: 31137776 PMCID: PMC6571858 DOI: 10.3390/molecules24102015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 11/16/2022] Open
Abstract
Cyanine dyes have been widely applied in various biological systems owing to their specific photochemical properties. Assembly and disassembly process of cyanine dyes were constructed and regulated by special biomolecules. In this paper, dimeric cyanine dyes with different repeat units (oligo-oxyethylene) in linker (TC-Pn) (n = 3-6) were found to form H-aggregates or mixture aggregates in PBS. These aggregates could be disassembled into dimer and/or monomer by (TGnT) tetramolecular G-quadruplexes (n = 3-6, 8), which were affected by the linker length of dimeric cyanine dyes and layers of G-quartets. The 1H-NMR titration results suggest that the binding mode of dimeric cyanine dye with TGnT might be on both ends-stacking like a clip. This binding mode could clearly explain that matching structures between dimeric cyanine dyes and TGnT quadruplexes could regulate the disassembly properties of aggregates. These results could provide clues for the development of highly specific G-quadruplex probes.
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Guan AJ, Zhang JT, Wang LX, Cui J, Xiang JF, Sun X, Chen K, Li Q, Tang YL. Spontaneous formation and reversible transformation between achiral J- and chiral H-aggregates of cyanine dye MTC. RSC Adv 2019; 9:11365-11368. [PMID: 35520237 PMCID: PMC9063261 DOI: 10.1039/c9ra00063a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/27/2019] [Indexed: 11/21/2022] Open
Abstract
Chirality at a supramolecular level is currently attracting great attention attributed to rapid developments in supramolecular chemistry. Herein, we report a new type of chiral self-assembly based on the cyanine dye MTC. The chiral H-aggregates of MTC could form spontaneously from achiral J-aggregates, and could return back to achiral J-aggregates in high concentration on increasing the solution temperature. Spontaneous transformation from achiral J-aggregates to chiral H-aggregates of cyanine dye MTC was investigated.![]()
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Affiliation(s)
- Ai-Jiao Guan
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China +8610-82617304
| | - Jing-Tao Zhang
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China +8610-82617304
| | - Li-Xia Wang
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China +8610-82617304
| | - Jie Cui
- Center for Physicochemical Analysis and Measurement, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Jun-Feng Xiang
- Center for Physicochemical Analysis and Measurement, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Xin Sun
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China +8610-82617304
| | - Kuo Chen
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China +8610-82617304
| | - Qian Li
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China +8610-82617304
| | - Ya-Lin Tang
- National Laboratory for Molecular Sciences, Center for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China +8610-82617304.,University of the Chinese Academy of Sciences Beijing 100049 China
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A comparative study of assembly and disassembly process of dimeric and monomeric cyanine dyes with DNA templates. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.10.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gu Y, Lin D, Tang Y, Fei X, Wang C, Zhang B, Zhou J. A light-up probe targeting for Bcl-2 2345 G-quadruplex DNA with carbazole TO. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 191:180-188. [PMID: 29032342 DOI: 10.1016/j.saa.2017.10.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 09/25/2017] [Accepted: 10/03/2017] [Indexed: 06/07/2023]
Abstract
As its significant role, the selective recognition of G-quadruplex with specific structures and functions is important in biological and medicinal chemistry. Carbazole derivatives have been reported as a kind of fluorescent probe with many excellent optical properties. In the present study, the fluorescence of the dye (carbazole TO) increased almost 70 fold in the presence of bcl-2 2345 G4 compared to that alone in aqueous buffer condition with almost no fluorescence and 10-30 fold than those in the presence of other DNAs. The binding study results by activity inhibition of G4/Hemin peroxidase experiment, NMR titration and molecular docking simulation showed the high affinity and selectivity to bcl-2 2345 G4 arises from its end-stacking interaction with G-quartet. It is said that a facile approach with excellent sensitive, good selectivity and quick response for bcl-2 2345 G-quadruplex was developed and may be used for antitumor recognition or antitumor agents.
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Affiliation(s)
- Yingchun Gu
- Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China; School of Science, Tianjin Chengjian University, Tianjin 300384, China
| | - Dayong Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yalin Tang
- Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China.
| | - Xuening Fei
- School of Science, Tianjin Chengjian University, Tianjin 300384, China; School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Cuihong Wang
- School of Science, Tianjin Chengjian University, Tianjin 300384, China
| | - Baolian Zhang
- School of Science, Tianjin Chengjian University, Tianjin 300384, China
| | - Jianguo Zhou
- School of Science, Tianjin Chengjian University, Tianjin 300384, China
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Ihmels H, Mahmoud MM, Patrick BO. Optical differentiation between quadruplex DNA and duplex DNA with a [2.2.2]heptamethinecyanine dye. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3736] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Heiko Ihmels
- Department of Chemistry and Biology; University of Siegen; Siegen Germany
- Center of Micro- and Nanochemistry and Engineering; University of Siegen; Siegen Germany
| | - Mohamed M.A. Mahmoud
- Department of Chemistry and Biology; University of Siegen; Siegen Germany
- Center of Micro- and Nanochemistry and Engineering; University of Siegen; Siegen Germany
| | - Brian O. Patrick
- Department of Chemistry; University of British Columbia; Vancouver Canada
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Zhang X, Wei Y, Bing T, Liu X, Zhang N, Wang J, He J, Jin B, Shangguan D. Development of squaraine based G-quadruplex ligands using click chemistry. Sci Rep 2017; 7:4766. [PMID: 28684846 PMCID: PMC5500484 DOI: 10.1038/s41598-017-04344-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 05/19/2017] [Indexed: 12/23/2022] Open
Abstract
The G-quadruplex (G4) structures of nucleic acids are considered to play an intrinsic role in gene expression. To this end, the development of new G4 ligands has attracted extensive research interests towards potential applications as G4-targeted drugs and molecular probes. To date, the majority of G4 ligands have been composed of an extended planar aromatic scaffold that interacts with the terminal G-tetrad plane via π-π interactions, and various side chains that interact with the sugar-phosphate backbone, loops or grooves of the G4 structures. The side chains act to modulate the affinity and selectivity of the G4 ligands, alongside influencing their biodistribution. Here, we present a click chemistry methodology to generate a series of squaraine-based G4 ligand derivatives based on our previously reported G4 probe (named CSTS) but with varing side chains. We find that importantly these new G4 ligand derivatives retain the G4 selectivity, optical properties and low cytotoxicity of CSTS, but exhibit different binding behaviors to G4 structures, and distinct cellular uptake efficiencies. Indeed, of these new complexes, several exhibit much higher affinity and cellular uptake than CSTS. Overall, this novel, facile and highly effective strategy has significant future potential for the high-throughput screening of G4 ligands or probes targeted towards in vivo applications.
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Affiliation(s)
- Xin Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongbiao Wei
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Tao Bing
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiangjun Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Nan Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Junyan Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Junqing He
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Bing Jin
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Dihua Shangguan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China. .,University of the Chinese Academy of Sciences, Beijing, 100049, China.
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Lin D, Fei X, Gu Y, Wang C, Tang Y, Li R, Zhou J. A benzindole substituted carbazole cyanine dye: a novel targeting fluorescent probe for parallel c-myc G-quadruplexes. Analyst 2016; 140:5772-80. [PMID: 26176020 DOI: 10.1039/c5an00866b] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Many organic ligands were synthesized to recognize G-quadruplexes. However, different kinds of G-quadruplexes (G4s) possess different structures and functions. Therefore, selective recognition of certain types of G4s is important for the study of G4s. In this paper, a novel cyanine dye, 3-(2-(4-vinylpyridine))-6-(2-((1-(4-sulfobutyl))-3,3-dimethyl-2-vinylbenz[e]indole)-9-ethyl-carbazole (9E PBIC), composed of benzindole and carbazole was designed and synthesised. The studies on UV-vis and fluorescence properties of the dye with different DNA forms showed that the dye exhibits almost no fluorescence under aqueous buffer conditions, but it increased over 100 fold in the presence of c-myc G4 and 10-30 fold in the presence of other G4s, while little in the presence of single/double-stranded DNA, indicating that it has excellent selectivity to c-myc 2345 G4. For the binding studies the dye is interacted with the c-myc 2345 G-quadruplex by using the end-stack binding model. It can be said that the dye is an excellent targeting fluorescent probe for c-myc G-quadruplexes.
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Affiliation(s)
- Dayong Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China.
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Chilka P, Patlolla PR, Datta B. Selective recognition of G-quadruplexes by a dimeric carbocyanine dye. RSC Adv 2016. [DOI: 10.1039/c6ra05474a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A novel dimeric carbocyanine dye is found to recognise G-quadruplex structures selectively compared to mixed sequence or double-stranded DNA molecules.
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Affiliation(s)
- P. Chilka
- Department of Biological Engineering
- Indian Institute of Technology Gandhinagar
- Ahmedabad 382424
- India
| | - P. R. Patlolla
- Department of Chemistry
- Indian Institute of Technology Gandhinagar
- Ahmedabad 382424
- India
| | - B. Datta
- Department of Biological Engineering
- Indian Institute of Technology Gandhinagar
- Ahmedabad 382424
- India
- Department of Chemistry
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Karg B, Funke A, Ficht A, Sievers-Engler A, Lämmerhofer M, Weisz K. Molecular Recognition and Visual Detection of G-Quadruplexes by a Dicarbocyanine Dye. Chemistry 2015; 21:13802-11. [DOI: 10.1002/chem.201502118] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Indexed: 11/12/2022]
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17
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Gu Y, Lin D, Li R, Tang Y, Fei X, Zhou J. Spectra, stability and labeling of 1-(5-carboxypentyl)-4-(2-(N-ethyl-carbazole-3-yl) vinyl) pyridinium bromide with a large Stokes shift. LUMINESCENCE 2015; 31:380-387. [PMID: 26249113 DOI: 10.1002/bio.2970] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 06/12/2015] [Accepted: 06/15/2015] [Indexed: 12/31/2022]
Abstract
Carbazole and its derivatives have been widely utilized as a functional building block in the fabrication of the organic medicine, pesticides, materials, etc., because of their excellent solubility, stability and biological activity. In this paper, 1-(5-carboxypentyl)-4-(2-(N-ethyl-carbazole-3-yl) vinyl) pyridinium bromide with a large Stokes shift was synthesized and characterized by (1)H NMR and MS. The UV/vis absorption and fluorescence spectra in different solvents and at different pH values were investigated preliminarily. The photostability and thermostability were also studied and the results showed that the compound was stable. The compound was also used to label bovine serum albumin (BSA) and calf thymus (ct)DNA. The results showed that the fluorescence intensity is enhanced when labeling with BSA and the binding ability is stronger than ctDNA, making it may be used as a biological probe.
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Affiliation(s)
- Yingchun Gu
- School of Science, Tianjin Chengjian University, Tianjin, 300384, People's Republic of China.,Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Dayong Lin
- School of Envirnmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Ran Li
- School of Science, Tianjin Chengjian University, Tianjin, 300384, People's Republic of China
| | - Yalin Tang
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China
| | - Xuening Fei
- School of Science, Tianjin Chengjian University, Tianjin, 300384, People's Republic of China.,School of Envirnmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Jianguo Zhou
- School of Science, Tianjin Chengjian University, Tianjin, 300384, People's Republic of China
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