1
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Li J, Ni Y, Wang J, Zhu Y, Wang A, Zhu X, Sun X, Wang S, Li D, Zhou H. Precisely modulating the chromatin tracker via substituent engineering: reporting pathological oxidative stress during mitosis. Chem Sci 2024; 15:3949-3956. [PMID: 38487223 PMCID: PMC10935666 DOI: 10.1039/d3sc06342a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/05/2024] [Indexed: 03/17/2024] Open
Abstract
An in-depth understanding of cancer-cell mitosis presents unprecedented advantages for solving metastasis and proliferation of tumors, which has aroused great interest in visualizing the behavior via a luminescence tool. We developed a fluorescent molecule CBTZ-yne based on substituent engineering to acquire befitting lipophilicity and electrophilicity for anchoring lipid droplets and the nucleus, in which the low polarity environment and nucleic acids triggered a "weak-strong" fluorescence and "short-long" fluorescence-lifetime response. Meaningfully, CBTZ-yne visualized chromatin condensation, alignment, pull-push, and separation as well as lipid droplet dynamics, for the first time, precisely unveiling the asynchronous cellular mitosis processes affected by photo-generation reactive oxygen species according to the subtle change of fluorescence-lifetime. Our work suggested a new guideline for tracking the issue of the proliferation of malignant tumors in photodynamic therapy.
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Affiliation(s)
- Jinsong Li
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Yingyong Ni
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Junjun Wang
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Yicai Zhu
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Aidong Wang
- Key Laboratory of Drug Design, Huangshan University Huangshan 245021 P. R. China
| | - Xiaojiao Zhu
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Xianshun Sun
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Sen Wang
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Dandan Li
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
| | - Hongping Zhou
- School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, Institute of Physical Science and Information Technology, Center of Free Electron Laser & High Magnetic Field, Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Key Laboratory of Functional Inorganic Materials Chemistry, Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University Hefei 230601 P. R. China
- School of Chemical and Environmental Engineering, Anhui Polytechnic University Wuhu 241000 P. R. China
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2
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Matić J, Tandarić T, Radić Stojković M, Šupljika F, Karačić Z, Tomašić Paić A, Horvat L, Vianello R, Tumir LM. Phenanthridine-pyrene conjugates as fluorescent probes for DNA/RNA and an inactive mutant of dipeptidyl peptidase enzyme. Beilstein J Org Chem 2023; 19:550-565. [PMID: 37153642 PMCID: PMC10155618 DOI: 10.3762/bjoc.19.40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 04/14/2023] [Indexed: 05/10/2023] Open
Abstract
Two novel conjugate molecules were designed: pyrene and phenanthridine-amino acid units with a different linker length between the aromatic fragments. Molecular modelling combined with spectrophotometric experiments revealed that in neutral and acidic buffered water solutions conjugates predominantly exist in intramolecularly stacked conformations because of the π-π stacking interaction between pyrene and phenanthridine moieties. The investigated systems exhibited a pH-dependent excimer formation that is significantly red-shifted relative to the pyrene and phenanthridine fluorescence. While the conjugate with a short linker showed negligible spectrophotometric changes due to the polynucleotide addition, the conjugate with a longer and more flexible linker exhibited a micromolar and submicromolar binding affinity for ds-polynucleotides and inactivated a mutant of dipeptidyl peptidase enzyme E451A. Confocal microscopy revealed that the conjugate with the longer linker entered the HeLa cell membranes and blue fluorescence was visualized as the dye accumulated in the cell membrane.
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Affiliation(s)
- Josipa Matić
- Laboratory for Biomolecular Interactions and Spectroscopy, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Tana Tandarić
- Laboratory for the Computational Design and Synthesis of Functional Materials, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Marijana Radić Stojković
- Laboratory for Biomolecular Interactions and Spectroscopy, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Filip Šupljika
- Laboratory for Physical Chemistry and Corrosion, Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Croatia
| | - Zrinka Karačić
- Laboratory for Protein Biochemistry and Molecular Modelling, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Ana Tomašić Paić
- Laboratory for Protein Biochemistry and Molecular Modelling, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Lucija Horvat
- Laboratory for Molecular Plant Biology and Biotechnology, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Robert Vianello
- Laboratory for the Computational Design and Synthesis of Functional Materials, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Lidija-Marija Tumir
- Laboratory for Biomolecular Interactions and Spectroscopy, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
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3
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Zhang Y, Wang H, Yu H, Sun X. Chiral fluorescent sensor based on H 8-BINOL for the high enantioselective recognition of d- and l-phenylalanine. RSC Adv 2022; 12:11967-11973. [PMID: 35481074 PMCID: PMC9016822 DOI: 10.1039/d2ra00803c] [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: 02/07/2022] [Accepted: 04/05/2022] [Indexed: 11/21/2022] Open
Abstract
Phenylalanine an essential aromatic amino acid for humans and animals, cannot be synthesized by humans and animals on their own. However, it synthesizes important neurotransmitters and hormones in the body and is involved in gluconeogenesis and lipid metabolism. Moreover, the two opposite configurations of phenylalanine have different activities. For example, l-phenylalanine is a biologically active optical isomer involved in crucial biological processes, the lack of which will lead to intellectual disability, while d-phenylalanine only acts as a chiral intermediate. In this research, an H8-BINOL chiral fluorescent sensor modified with 1,2,3-triazole was synthesized in high yield (95%) by nucleophilic substitution and click reaction. The chiral fluorescent sensor showed high enantioselectivity toward phenylalanine. l-Phenylalanine enhanced the fluorescence response of the probe significantly, while d-phenylalanine had no obvious fluorescence response change. The enantioselective fluorescence enhancement ratio [ef = (IL − I0)/(ID − I0), where I0 is the fluorescence of the sensor without amino acids] for the highest fluorescence intensity at 20.0 equivalents of amino acids was 104.48. In this way, the probe could be used to identify and differentiate different configurations of phenylalanine. A triazole-modified H8-BINOL fluorescence sensor was synthesized with 95% yield, which can enantioselectively recognize l-phenylalanine without the participation of metal ions, even the enantioselective fluorescence enhancement ratio was up to 104.28.![]()
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Affiliation(s)
- Yafeng Zhang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 China
| | - Huizhen Wang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 China
| | - Hu Yu
- College of Chemistry, Nanchang University Nanchang China
| | - Xiaoxia Sun
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 China
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4
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Wang KN, Liu LY, Mao D, Hou MX, Tan CP, Mao ZW, Liu B. A Nuclear-Targeted AIE Photosensitizer for Enzyme Inhibition and Photosensitization in Cancer Cell Ablation. Angew Chem Int Ed Engl 2022; 61:e202114600. [PMID: 35132748 DOI: 10.1002/anie.202114600] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Indexed: 12/24/2022]
Abstract
The nucleus is considered the ideal target for anti-tumor therapy because DNA and some enzymes in the nucleus are the main causes of cell canceration and malignant proliferation. However, nuclear target drugs with good biosafety and high efficiency in cancer treatment are rare. Herein, a nuclear-targeted material MeTPAE with aggregation-induced emission (AIE) characteristics was developed based on a triphenylamine structure skeleton. MeTPAE can not only interact with histone deacetylases (HDACs) to inhibit cell proliferation but also damage telomere and nucleic acids precisely through photodynamic treatment (PDT). The cocktail strategy of MeTPAE caused obvious cell cycle arrest and showed excellent PDT anti-tumor activity, which offered new opportunities for the effective treatment of malignant tumors.
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Affiliation(s)
- Kang-Nan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China.,Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Liu-Yi Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Ming-Xuan Hou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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5
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Wang K, Liu L, Mao D, Hou M, Tan C, Mao Z, Liu B. A Nuclear‐Targeted AIE Photosensitizer for Enzyme Inhibition and Photosensitization in Cancer Cell Ablation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Kang‐Nan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Liu‐Yi Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Ming‐Xuan Hou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Cai‐Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Zong‐Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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6
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Ban Ž, Griesbeck S, Tomić S, Nitsch J, Marder TB, Piantanida I. A Quadrupolar Bis-Triarylborane Chromophore as a Fluorimetric and Chirooptic Probe for Simultaneous and Selective Sensing of DNA, RNA and Proteins. Chemistry 2020; 26:2195-2203. [PMID: 31756013 PMCID: PMC7065195 DOI: 10.1002/chem.201903936] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/21/2019] [Indexed: 12/29/2022]
Abstract
A water-soluble tetracationic quadrupolar bis-triarylborane chromophore showed strong binding to ds-DNA, ds-RNA, ss-RNA, as well as to the naturally most abundant protein, BSA. The novel dye can distinguish between DNA/RNA and BSA by fluorescence emission separated by Δ ν ˜ =3600 cm-1 , allowing for the simultaneous quantification of DNA/RNA and protein (BSA) in a mixture. The applicability of such fluorimetric differentiation in vitro was demonstrated, strongly supporting a protein-like target as a dominant binding site of 1 in cells. Moreover, our dye also bound strongly to ss-RNA, with the unusual rod-like structure of the dye, decorated by four positive charges at its termini and having a hydrophobic core, acting as a spindle for wrapping A, C and U ss-RNAs, but not poly G, the latter preserving its secondary structure. To the best of our knowledge, such unmatched, multifaceted binding activity of a small molecule toward DNA, RNA, and proteins and the selectivity of its fluorimetric and chirooptic response makes the quadrupolar bis-triarylborane a novel chromophore/fluorophore moiety for biochemical applications.
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Affiliation(s)
- Željka Ban
- Division of Organic Chemistry and BiochemistryRuder Boškovic InstituteZagrebCroatia
| | - Stefanie Griesbeck
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg97074WürzburgGermany
| | - Sanja Tomić
- Division of Organic Chemistry and BiochemistryRuder Boškovic InstituteZagrebCroatia
| | - Jörn Nitsch
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg97074WürzburgGermany
| | - Todd B. Marder
- Institut für Anorganische Chemie andInstitute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität Würzburg97074WürzburgGermany
| | - Ivo Piantanida
- Division of Organic Chemistry and BiochemistryRuder Boškovic InstituteZagrebCroatia
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7
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Šmidlehner T, Kurutos A, Slade J, Belužić R, Ang DL, Rodger A, Piantanida I. Versatile Click Cyanine Amino Acid Conjugates Showing One-Atom-Influenced Recognition of DNA/RNA Secondary Structure and Mitochondrial Localisation in Living Cells. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701765] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tamara Šmidlehner
- Division of Organic Chemistry & Biochemistry; Ruđer Bošković Institute; Bijenička cesta 54 10002 Zagreb Croatia
| | - Atanas Kurutos
- Inter- and IntraMolecular Processes Group; Bulgarian Academy of Science; 1113 Sofia Bulgaria
| | - Jakov Slade
- Division of Organic Chemistry & Biochemistry; Ruđer Bošković Institute; Bijenička cesta 54 10002 Zagreb Croatia
| | - Robert Belužić
- Division of Organic Chemistry & Biochemistry; Ruđer Bošković Institute; Bijenička cesta 54 10002 Zagreb Croatia
| | - Dale L. Ang
- Nanoscale Organisation and Dynamics Group; Western Sydney University; 2560 Campbelltown NSW Australia
| | - Alison Rodger
- Chemistry and Biomolecular Sciences; Macquarie University; 2109 Sydney NSW Australia
| | - Ivo Piantanida
- Division of Organic Chemistry & Biochemistry; Ruđer Bošković Institute; Bijenička cesta 54 10002 Zagreb Croatia
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8
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Šmidlehner T, Piantanida I, Pescitelli G. Polarization spectroscopy methods in the determination of interactions of small molecules with nucleic acids - tutorial. Beilstein J Org Chem 2018; 14:84-105. [PMID: 29441133 PMCID: PMC5789433 DOI: 10.3762/bjoc.14.5] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 12/13/2017] [Indexed: 01/19/2023] Open
Abstract
The structural characterization of non-covalent complexes between nucleic acids and small molecules (ligands) is of a paramount significance to bioorganic research. Highly informative methods about nucleic acid/ligand complexes such as single crystal X-ray diffraction or NMR spectroscopy cannot be performed under biologically compatible conditions and are extensively time consuming. Therefore, in search for faster methods which can be applied to conditions that are at least similar to the naturally occurring ones, a set of polarization spectroscopy methods has shown highly promising results. Electronic circular dichroism (ECD) is the most commonly used method for the characterization of the helical structure of DNA and RNA and their complexes with ligands. Less common but complementary to ECD, is flow-oriented linear dichroism (LD). Other methods such as vibrational CD (VCD) and emission-based methods (FDCD, CPL), can also be used for suitable samples. Despite the popularity of polarization spectroscopy in biophysics, aside several highly focused reviews on the application of these methods to DNA/RNA research, there is no systematic tutorial covering all mentioned methods as a tool for the characterization of adducts between nucleic acids and small ligands. This tutorial aims to help researchers entering the research field to organize experiments accurately and to interpret the obtained data reliably.
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Affiliation(s)
- Tamara Šmidlehner
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute; P. O. Box 180, 10002 Zagreb, Croatia
| | - Ivo Piantanida
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute; P. O. Box 180, 10002 Zagreb, Croatia
| | - Gennaro Pescitelli
- Department of Chemistry, University of Pisa, via Moruzzi 13, Pisa, Italy
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9
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Vasilev AA, Kandinska MI, Stoyanov SS, Yordanova SB, Sucunza D, Vaquero JJ, Castaño OD, Baluschev S, Angelova SE. Halogen-containing thiazole orange analogues - new fluorogenic DNA stains. Beilstein J Org Chem 2017; 13:2902-2914. [PMID: 29564018 PMCID: PMC5753173 DOI: 10.3762/bjoc.13.283] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 12/15/2017] [Indexed: 12/20/2022] Open
Abstract
Novel asymmetric monomeric monomethine cyanine dyes 5a–d, which are analogues of the commercial dsDNA fluorescence binder thiazole orange (TO), have been synthesized. The synthesis was achieved by using a simple, efficient and environmetally benign synthetic procedure to obtain these cationic dyes in good to excellent yields. Interactions of the new derivatives of TO with dsDNA have been investigated by absorption and fluorescence spectroscopy. The longest wavelength absorption bands in the UV–vis spectra of the target compounds are in the range of 509–519 nm and these are characterized by high molar absorptivities (63000–91480 L·mol−1·cm−1). All investigated dyes from the series are either not fluorescent or their fluorescence is quite low, but they become strongly fluorescent after binding to dsDNA. The influence of the substituents attached to the chromophores was investigated by combination of spectroscopic (UV–vis and fluorescence spectroscopy) and theoretical (DFT and TDDFT calculations) methods.
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Affiliation(s)
- Aleksey A Vasilev
- Department of Pharmaceutical and Applied Organic Chemistry, Faculty of Chemistry and Pharmacy, Sofia University "St. Kliment Ohridski", 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - Meglena I Kandinska
- Department of Organic Chemistry and Pharmacognosy, Faculty of Chemistry and Pharmacy, Sofia University "St. Kliment Ohridski", 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - Stanimir S Stoyanov
- Department of Organic Chemistry and Pharmacognosy, Faculty of Chemistry and Pharmacy, Sofia University "St. Kliment Ohridski", 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - Stanislava B Yordanova
- Department of Organic Chemistry and Pharmacognosy, Faculty of Chemistry and Pharmacy, Sofia University "St. Kliment Ohridski", 1 James Bourchier Blvd., 1164 Sofia, Bulgaria
| | - David Sucunza
- Departments of Organic and Physical Chemistry, University of Alcala, 28871-Alcala de Henares, Madrid, Spain
| | - Juan J Vaquero
- Departments of Organic and Physical Chemistry, University of Alcala, 28871-Alcala de Henares, Madrid, Spain
| | - Obis D Castaño
- Departments of Organic and Physical Chemistry, University of Alcala, 28871-Alcala de Henares, Madrid, Spain
| | - Stanislav Baluschev
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Silvia E Angelova
- Departments of Organic and Physical Chemistry, University of Alcala, 28871-Alcala de Henares, Madrid, Spain.,Institute of Organic Chemistry with Centre of Phytochemisty, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria (permanent address)
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10
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Novel DNA/RNA-targeting amino acid beacon for the versatile incorporation at any position within the peptide backbone. Amino Acids 2017; 49:1381-1388. [DOI: 10.1007/s00726-017-2438-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 05/08/2017] [Indexed: 01/28/2023]
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11
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Saftić D, Radić Stojković M, Žinić B, Glavaš-Obrovac L, Jukić M, Piantanida I, Tumir LM. Impact of linker between triazolyluracil and phenanthridine on recognition of DNA and RNA. Recognition of uracil-containing RNA. NEW J CHEM 2017. [DOI: 10.1039/c7nj02699d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A phenanthridine-triazolyluracilyl multifunctional ligand, linked by a lysine–glycine peptide, binds to poly rA–poly rU with micromolar affinity and selective fluorescence response.
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Affiliation(s)
- Dijana Saftić
- Laboratory for Biomolecular Interactions and Spectroscopy
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- P.O.B. 180
- HR 10002 Zagreb
| | - Marijana Radić Stojković
- Laboratory for Biomolecular Interactions and Spectroscopy
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- P.O.B. 180
- HR 10002 Zagreb
| | - Biserka Žinić
- Laboratory for Biomolecular Interactions and Spectroscopy
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- P.O.B. 180
- HR 10002 Zagreb
| | - Ljubica Glavaš-Obrovac
- Department of Medicinal Chemistry and Biochemistry
- School of Medicine Osijek
- 31000 Osijek
- Croatia
| | - Marijana Jukić
- Department of Medicinal Chemistry and Biochemistry
- School of Medicine Osijek
- 31000 Osijek
- Croatia
| | - Ivo Piantanida
- Laboratory for Biomolecular Interactions and Spectroscopy
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- P.O.B. 180
- HR 10002 Zagreb
| | - Lidija-Marija Tumir
- Laboratory for Biomolecular Interactions and Spectroscopy
- Division of Organic Chemistry & Biochemistry
- Ruđer Bošković Institute
- P.O.B. 180
- HR 10002 Zagreb
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