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Saczuk K, Dudek M, Matczyszyn K, Deiana M. Advancements in molecular disassembly of optical probes: a paradigm shift in sensing, bioimaging, and therapeutics. NANOSCALE HORIZONS 2024. [PMID: 38963132 DOI: 10.1039/d4nh00186a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
The majority of self-assembled fluorescent dyes suffer from aggregation-caused quenching (ACQ), which detrimentally affects their diagnostic and therapeutic effectiveness. While aggregation-induced emission (AIE) active dyes offer a promising solution to overcome this limitation, they may face significant challenges as the intracellular environment often prevents aggregation, leading to disassembly and posing challenges for AIE fluorogens. Recent progress in signal amplification through the disassembly of ACQ dyes has opened new avenues for creating ultrasensitive optical sensors and enhancing phototherapeutic outcomes. These advances are well-aligned with cutting-edge technologies such as single-molecule microscopy and targeted molecular therapies. This work explores the concept of disaggregation-induced emission (DIE), showcasing the revolutionary capabilities of DIE-based dyes from their design to their application in sensing, bioimaging, disease monitoring, and treatment in both cellular and animal models. Our objective is to provide an in-depth comparison of aggregation versus disaggregation mechanisms, aiming to stimulate further advancements in the design and utilization of ACQ fluorescent dyes through DIE technology. This initiative is poised to catalyze scientific progress across a broad spectrum of disciplines.
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Affiliation(s)
- Karolina Saczuk
- Institute of Advanced Materials, Faculty of Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
| | - Marta Dudek
- Institute of Advanced Materials, Faculty of Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
| | - Katarzyna Matczyszyn
- Institute of Advanced Materials, Faculty of Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
- International Institute for Sustainability with Knotted Chiral Meta Matter (WPI-SKCM(2)), Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Marco Deiana
- Institute of Advanced Materials, Faculty of Chemistry, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
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2
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Roy S, Majee P, Sudhakar S, Mishra S, Kalia J, Pradeepkumar PI, Srivatsan SG. Structural elucidation of HIV-1 G-quadruplexes in a cellular environment and their ligand binding using responsive 19F-labeled nucleoside probes. Chem Sci 2024; 15:7982-7991. [PMID: 38817587 PMCID: PMC11134374 DOI: 10.1039/d4sc01755b] [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: 03/15/2024] [Accepted: 04/23/2024] [Indexed: 06/01/2024] Open
Abstract
Understanding the structure and recognition of highly conserved regulatory segments of the integrated viral DNA genome that forms unique topologies can greatly aid in devising novel therapeutic strategies to counter chronic infections. In this study, we configured a probe system using highly environment-sensitive nucleoside analogs, 5-fluoro-2'-deoxyuridine (FdU) and 5-fluorobenzofuran-2'-deoxyuridine (FBFdU), to investigate the structural polymorphism of HIV-1 long terminal repeat (LTR) G-quadruplexes (GQs) by fluorescence and 19F NMR. FdU and FBFdU, serving as hairpin and GQ sensors, produced distinct spectral signatures for different GQ topologies adopted by LTR G-rich oligonucleotides. Importantly, systematic 19F NMR analysis in Xenopus laevis oocytes gave unprecedented information on the structure adopted by the LTR G-rich region in the cellular environment. The results indicate that it forms a unique GQ-hairpin hybrid architecture, a potent hotspot for selective targeting. Furthermore, structural models generated using MD simulations provided insights on how the probe system senses different GQs. Using the responsiveness of the probes and Taq DNA polymerase stop assay, we monitored GQ- and hairpin-specific ligand interactions and their synergistic inhibitory effect on the replication process. Our findings suggest that targeting GQ and hairpin motifs simultaneously using bimodal ligands could be a new strategy to selectively block the viral replication.
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Affiliation(s)
- Sarupa Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune Dr Homi Bhabha Road Pune 411008 India
| | - Priyasha Majee
- Department of Chemistry, Indian Institute of Technology Bombay Mumbai 400076 India
| | - Sruthi Sudhakar
- Department of Chemistry, Indian Institute of Technology Bombay Mumbai 400076 India
| | - Satyajit Mishra
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066 India
| | - Jeet Kalia
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066 India
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066 India
| | - P I Pradeepkumar
- Department of Chemistry, Indian Institute of Technology Bombay Mumbai 400076 India
| | - Seergazhi G Srivatsan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune Dr Homi Bhabha Road Pune 411008 India
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3
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Wang RX, Ou Y, Chen Y, Ren TB, Yuan L, Zhang XB. Rational Design of NIR-II G-Quadruplex Fluorescent Probes for Accurate In Vivo Tumor Metastasis Imaging. J Am Chem Soc 2024; 146:11669-11678. [PMID: 38644738 DOI: 10.1021/jacs.3c13851] [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: 04/23/2024]
Abstract
Accurate in vivo imaging of G-quadruplexes (G4) is critical for understanding the emergence and progression of G4-associated diseases like cancer. However, existing in vivo G4 fluorescent probes primarily operate within the near-infrared region (NIR-I), which limits their application accuracy due to the short emission wavelength. The transition to second near-infrared (NIR-II) fluorescent imaging has been of significant interest, as it offers reduced autofluorescence and deeper tissue penetration, thereby facilitating more accurate in vivo imaging. Nonetheless, the advancement of NIR-II G4 probes has been impeded by the absence of effective probe design strategies. Herein, through a "step-by-step" rational design approach, we have successfully developed NIRG-2, the first small-molecule fluorescent probe with NIR-II emission tailored for in vivo G4 detection. Molecular docking calculations reveal that NIRG-2 forms stable hydrogen bonds and strong π-π interactions with G4 structures, which effectively inhibit twisted intramolecular charge transfer (TICT) and, thereby, selectively illuminate G4 structures. Due to its NIR-II emission (940 nm), large Stokes shift (90 nm), and high selectivity, NIRG-2 offers up to 47-fold fluorescence enhancement and a tissue imaging depth of 5 mm for in vivo G4 detection, significantly outperforming existing G4 probes. Utilizing NIRG-2, we have, for the first time, achieved high-contrast visualization of tumor metastasis through lymph nodes and precise tumor resection. Furthermore, NIRG-2 proves to be highly effective and reliable in evaluating surgical and drug treatment efficacy in cancer lymphatic metastasis models. We are optimistic that this study not only provides a crucial molecular tool for an in-depth understanding of G4-related diseases in vivo but also marks a promising strategy for the development of clinical NIR-II G4-activated probes.
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Affiliation(s)
- Ren-Xuan Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yifeng Ou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yushi Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Tian-Bing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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4
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Pandey A, Roy S, Srivatsan SG. Probing the Competition between Duplex, G-Quadruplex and i-Motif Structures of the Oncogenic c-Myc DNA Promoter Region. Chem Asian J 2023; 18:e202300510. [PMID: 37541298 DOI: 10.1002/asia.202300510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/09/2023] [Indexed: 08/06/2023]
Abstract
Development of probe systems that provide unique spectral signatures for duplex, G-quadruplex (GQ) and i-motif (iM) structures is very important to understand the relative propensity of a G-rich-C-rich promoter region to form these structures. Here, we devise a platform using a combination of two environment-sensitive nucleoside analogs namely, 5-fluorobenzofuran-modified 2'-deoxyuridine (FBF-dU) and 5-fluoro-2'-deoxyuridine (F-dU) to study the structures adopted by a promoter region of the c-Myc oncogene. FBF-dU serves as a dual-purpose probe containing a fluorescent and 19 F NMR label. When incorporated into the C-rich sequence, it reports the formation of different iMs via changes in its fluorescence properties and 19 F signal. F-dU incorporated into the G-rich ON reports the formation of a GQ structure whose 19 F signal is clearly different from the signals obtained for iMs. Rewardingly, the labeled ONs when mixed with respective complementary strands allows us to determine the relative population of different structures formed by the c-Myc promoter by the virtue of the probe's ability to produce distinct and resolved 19 F signatures for different structures. Our results indicate that at physiological pH and temperature the c-Myc promoter forms duplex, random coil and GQ structures, and does not form an iM. Whereas at acidic pH, the mixture largely forms iM and GQ structures. Taken together, our system will complement existing tools and provide unprecedented insights on the population equilibrium and dynamics of nucleic acid structures under different conditions.
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Affiliation(s)
- Akanksha Pandey
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Sarupa Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Seergazhi G Srivatsan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune, 411008, India
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5
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Li JH, You PD, Lu F, Tang HY, Guo HY, Zhou CQ. NIR C-Myc Pu22 G-quadruplex probe as a photosensitizer for bioimaging and antitumor study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 294:122533. [PMID: 36842212 DOI: 10.1016/j.saa.2023.122533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/05/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Despite the fact that C-Myc G-quadruplex in the oncogene promoter regions is one of the crucial targets of antitumor drugs, the selectivities and proliferation inhibitions of its probes towards tumor cells remain a big challenge. Until now, no effective C-Myc G-quadruplex probes have been reported as a photosensitizer to increase their antitumor activities. Here, the first NIR C-Myc G-quadruplex probe PDS-SQ has been designed, comprising a G-quadruplex binder PDS and a squaraine dye SQ as a photosensitizer. Conjugate PDS-SQ could selectively NIR image C-Myc Pu22 G-quadruplex in tumor cells, and show stronger antitumor activity in the irradiation by a chemo-photodynamic method than in the dark. The study provides a new way to develop the novel NIR C-Myc G-quadruplex probes with more potent antitumor activities.
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Affiliation(s)
- Jun-Hui Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Pei-Dan You
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Fei Lu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Hao-Yun Tang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Hong-Yan Guo
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Chun-Qiong Zhou
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China.
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6
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Khatik SY, Sudhakar S, Mishra S, Kalia J, Pradeepkumar PI, Srivatsan SG. Probing juxtaposed G-quadruplex and hairpin motifs using a responsive nucleoside probe: a unique scaffold for chemotherapy. Chem Sci 2023; 14:5627-5637. [PMID: 37265741 PMCID: PMC10231310 DOI: 10.1039/d3sc00519d] [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: 01/30/2023] [Accepted: 04/30/2023] [Indexed: 06/03/2023] Open
Abstract
Paucity of efficient probes and small molecule ligands that can distinguish different G-quadruplex (GQ) topologies poses challenges not only in understanding their basic structure but also in targeting an individual GQ form from others. Alternatively, G-rich sequences that harbour unique chimeric structural motifs (e.g., GQ-duplex or GQ-hairpin junctions) are perceived as new therapeutic hotspots. In this context, the epidermal growth factor receptor (EGFR) gene, implicated in many cancers, contains a 30 nucleotide G-rich segment in the promoter region, which adopts in vitro two unique architectures each composed of a GQ topology (parallel and hybrid-type) juxtaposed with a hairpin domain. Here, we report the use of a novel dual-app probe, C5-trifluoromethyl benzofuran-modified 2'-deoxyuridine (TFBF-dU), in the systematic analysis of EGFR GQs and their interaction with small molecules by fluorescence and 19F NMR techniques. Notably, distinct fluorescence and 19F NMR signals exhibited by the probe enabled the quantification of the relative population of random, parallel and hybrid-type GQ structures under different conditions, which could not be obtained by conventional CD and 1H NMR techniques. Using the fluorescence component, we quantified ligand binding properties of GQs, whereas the 19F label enabled the assessment of ligand-induced changes in GQ dynamics. Studies also revealed that mutations in the hairpin domain affected GQ formation and stability, which was further functionally verified in polymerase stop assay. We anticipate that these findings and useful properties of the nucleoside probe could be utilized in designing and evaluating binders that jointly target both GQ and hairpin domains for enhanced selectivity and druggability.
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Affiliation(s)
- Saddam Y Khatik
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr Homi Bhabha Road Pune 411008 India
| | - Sruthi Sudhakar
- Department of Chemistry, Indian Institute of Technology Bombay Mumbai 400076 India
| | - Satyajit Mishra
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066 India
| | - Jeet Kalia
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066 India
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066 India
| | - P I Pradeepkumar
- Department of Chemistry, Indian Institute of Technology Bombay Mumbai 400076 India
| | - Seergazhi G Srivatsan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr Homi Bhabha Road Pune 411008 India
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7
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Gil-Martínez A, López-Molina S, Galiana-Roselló C, Lázaro-Gómez A, Schlüter F, Rizzo F, González-García J. Modulating the G-Quadruplex and Duplex DNA Binding by Controlling the Charge of Fluorescent Molecules. Chemistry 2023; 29:e202203094. [PMID: 36318180 PMCID: PMC10107164 DOI: 10.1002/chem.202203094] [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: 10/04/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 12/13/2022]
Abstract
Two fluorescent and non-toxic spirobifluorene molecules bearing either positive (Spiro-NMe3) or negative (Spiro-SO3) charged moieties attached to the same aromatic structure have been investigated as binders for DNA. The novel Spiro-NMe3 containing four alkylammonium substituents interacts with G-quadruplex (G4) DNA structures and shows preference for G4s over duplex by means of FRET melting and fluorescence experiments. The interaction is governed by the charged substituents of the ligands as deduced from the lower binding of the sulfonate analogue (Spiro-SO3). On the contrary, Spiro-SO3 exhibits higher binding affinity to duplex DNA structure than to G4. Both molecules show a moderate quenching of the fluorescence upon DNA binding. The confocal microscopy evaluation shows the internalization of both molecules in HeLa cells and their lysosomal accumulation.
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Affiliation(s)
- Ariadna Gil-Martínez
- Institute of Molecular Science (ICMol) Department of Inorganic Chemistry, University of Valencia Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Sònia López-Molina
- Institute of Molecular Science (ICMol) Department of Inorganic Chemistry, University of Valencia Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Cristina Galiana-Roselló
- Institute of Molecular Science (ICMol) Department of Inorganic Chemistry, University of Valencia Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Andrea Lázaro-Gómez
- Institute of Molecular Science (ICMol) Department of Inorganic Chemistry, University of Valencia Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Friederike Schlüter
- Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, 48149, Münster, Germany
| | - Fabio Rizzo
- Center for Soft Nanoscience (SoN), Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, 48149, Münster, Germany.,Istituto di Scienze e Tecnologie Chimiche (SCITEC), Consiglio Nazionale delle Ricerche (CNR), via G. Fantoli 16/15, 20138, Milano, Italy
| | - Jorge González-García
- Institute of Molecular Science (ICMol) Department of Inorganic Chemistry, University of Valencia Catedrático José Beltrán 2, 46980, Paterna, Spain
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Verma S, Patidar RK, Tiwari K, Tiwari R, Baranwal J, Velayutham R, Ranjan N. Preferential Recognition of Human Telomeric G-Quadruplex DNA by a Red-Emissive Molecular Rotor. J Phys Chem B 2022; 126:7298-7309. [DOI: 10.1021/acs.jpcb.2c04418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Smita Verma
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli, New Transit Campus, Lucknow 226002, Uttar Pradesh, India
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Kolkata, Maniktala Main Road, Kolkata 700054, India
| | - Rajesh K. Patidar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli, New Transit Campus, Lucknow 226002, Uttar Pradesh, India
| | - Khushboo Tiwari
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli, New Transit Campus, Lucknow 226002, Uttar Pradesh, India
| | - Ratnesh Tiwari
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli, New Transit Campus, Lucknow 226002, Uttar Pradesh, India
| | - Jaya Baranwal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli, New Transit Campus, Lucknow 226002, Uttar Pradesh, India
| | - Ravichandiran Velayutham
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Kolkata, Maniktala Main Road, Kolkata 700054, India
| | - Nihar Ranjan
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli, New Transit Campus, Lucknow 226002, Uttar Pradesh, India
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9
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Oshchepkov AS, Reznichenko O, Xu D, Morozov BS, Granzhan A, Kataev EA. Dye-functionalized phosphate-binding macrocycles: from nucleotide to G-quadruplex recognition and "turn-on" fluorescence sensing. Chem Commun (Camb) 2021; 57:10632-10635. [PMID: 34581337 DOI: 10.1039/d1cc04096k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel strategy to design "turn-on" fluorescent receptors for G-quadruplexes of DNA is presented, which relies on the connection of phosphate binding macrocycles (PBM) with naphthalimide dyes. A new PBM-dye family was synthesized and evaluated in terms of binding and detection of nucleotides and DNA G-quadruplexes of different topologies.
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Affiliation(s)
- Aleksandr S Oshchepkov
- Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany. .,Institute of Chemistry, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Oksana Reznichenko
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Saclay, Bât. 110, Centre Universitaire Paris Sud, F-91405 Orsay, France
| | - Dan Xu
- Institute of Chemistry, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Boris S Morozov
- Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany. .,Institute of Chemistry, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Anton Granzhan
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Saclay, Bât. 110, Centre Universitaire Paris Sud, F-91405 Orsay, France
| | - Evgeny A Kataev
- Department of Chemistry and Pharmacy, University Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany. .,CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Saclay, Bât. 110, Centre Universitaire Paris Sud, F-91405 Orsay, France
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10
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DNA Binding Mode Analysis of a Core-Extended Naphthalene Diimide as a Conformation-Sensitive Fluorescent Probe of G-Quadruplex Structures. Int J Mol Sci 2021; 22:ijms221910624. [PMID: 34638964 PMCID: PMC8508963 DOI: 10.3390/ijms221910624] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 12/27/2022] Open
Abstract
G-quadruplex existence was proved in cells by using both antibodies and small molecule fluorescent probes. However, the G-quadruplex probes designed thus far are structure- but not conformation-specific. Recently, a core-extended naphthalene diimide (cex-NDI) was designed and found to provide fluorescent signals of markedly different intensities when bound to G-quadruplexes of different conformations or duplexes. Aiming at evaluating how the fluorescence behaviour of this compound is associated with specific binding modes to the different DNA targets, cex-NDI was here studied in its interaction with hybrid G-quadruplex, parallel G-quadruplex, and B-DNA duplex models by biophysical techniques, molecular docking, and biological assays. cex-NDI showed different binding modes associated with different amounts of stacking interactions with the three DNA targets. The preferential binding sites were the groove, outer quartet, or intercalative site of the hybrid G-quadruplex, parallel G-quadruplex, and B-DNA duplex, respectively. Interestingly, our data show that the fluorescence intensity of DNA-bound cex-NDI correlates with the amount of stacking interactions formed by the ligand with each DNA target, thus providing the rationale behind the conformation-sensitive properties of cex-NDI and supporting its use as a fluorescent probe of G-quadruplex structures. Notably, biological assays proved that cex-NDI mainly localizes in the G-quadruplex-rich nuclei of cancer cells.
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11
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Deiana M, Mosser M, Le Bahers T, Dumont E, Dudek M, Denis-Quanquin S, Sabouri N, Andraud C, Matczyszyn K, Monnereau C, Guy L. Light-induced in situ chemical activation of a fluorescent probe for monitoring intracellular G-quadruplex structures. NANOSCALE 2021; 13:13795-13808. [PMID: 34477654 DOI: 10.1039/d1nr02855c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Light-activated functional materials capable of remote control over duplex and G-quadruplex (G4) nucleic acids formation at the cellular level are still very rare. Herein, we report on the photoinduced macrocyclisation of a helicenoid quinoline derivative of binaphthol that selectively provides easy access to an unprecedented class of extended heteroaromatic structures with remarkable photophysical and DNA/RNA binding properties. Thus, while the native bisquinoline precursor shows no DNA binding activity, the new in situ photochemically generated probe features high association constants to DNA and RNA G4s. The latter inhibits DNA synthesis by selectively stabilizing G4 structures associated with oncogenic promoters and telomere repeat units. Finally, the light sensitive compound is capable of in cellulo photoconversion, localizes primarily in the G4-rich sites of cancer cells, competes with a well-known G4 binder and shows a clear nuclear co-localization with the quadruplex specific antibody BG4. This work provides a benchmark for the future design and development of a brand-new generation of light-activated target-selective G4-binders.
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Affiliation(s)
- Marco Deiana
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden.
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12
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Deiana M, Obi I, Andreasson M, Tamilselvi S, Chand K, Chorell E, Sabouri N. A Minimalistic Coumarin Turn-On Probe for Selective Recognition of Parallel G-Quadruplex DNA Structures. ACS Chem Biol 2021; 16:1365-1376. [PMID: 34328300 PMCID: PMC8397291 DOI: 10.1021/acschembio.1c00134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
![]()
G-quadruplex (G4)
DNA structures are widespread in the human genome
and are implicated in biologically important processes such as telomere
maintenance, gene regulation, and DNA replication. Guanine-rich sequences
with potential to form G4 structures are prevalent in the promoter
regions of oncogenes, and G4 sites are now considered as attractive
targets for anticancer therapies. However, there are very few reports
of small “druglike” optical G4 reporters that are easily
accessible through one-step synthesis and that are capable of discriminating
between different G4 topologies. Here, we present a small water-soluble
light-up fluorescent probe that features a minimalistic amidinocoumarin-based
molecular scaffold that selectively targets parallel G4 structures
over antiparallel and non-G4 structures. We showed that this biocompatible
ligand is able to selectively stabilize the G4 template resulting
in slower DNA synthesis. By tracking individual DNA molecules, we
demonstrated that the G4-stabilizing ligand perturbs DNA replication
in cancer cells, resulting in decreased cell viability. Moreover,
the fast-cellular entry of the probe enabled detection of nucleolar
G4 structures in living cells. Finally, insights gained from the structure–activity
relationships of the probe suggest the basis for the recognition of
parallel G4s, opening up new avenues for the design of new biocompatible
G4-specific small molecules for G4-driven theranostic applications.
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Affiliation(s)
- Marco Deiana
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | - Ikenna Obi
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | - Måns Andreasson
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Shanmugam Tamilselvi
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | - Karam Chand
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Erik Chorell
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Nasim Sabouri
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
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13
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Manoli F, Doria F, Colombo G, Zambelli B, Freccero M, Manet I. The Binding Pocket at the Interface of Multimeric Telomere G-quadruplexes: Myth or Reality? Chemistry 2021; 27:11707-11720. [PMID: 34152657 PMCID: PMC8456957 DOI: 10.1002/chem.202101486] [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: 04/26/2021] [Indexed: 01/23/2023]
Abstract
Human telomeric DNA with hundreds of repeats of the 5'-TTAGGG-3' motif plays a crucial role in several biological processes. It folds into G-quadruplex (G4) structures and features a pocket at the interface of two contiguous G4 blocks. Up to now no structural NMR and crystallographic data are available for ligands interacting with contiguous G4s. Naphthalene diimide monomers and dyads were investigated as ligands of a dimeric G4 of human telomeric DNA comparing the results with those of the model monomeric G4. Time-resolved fluorescence, circular dichroism, isothermal titration calorimetry and molecular modeling were used to elucidate binding features. Ligand fluorescence lifetime and induced circular dichroism unveiled occupancy of the binding site at the interface. Thermodynamic parameters confirmed the hypothesis as they remarkably change for the dyad complexes of the monomeric and dimeric telomeric G4. The bi-functional ligand structure of the dyads is a fundamental requisite for binding at the G4 interface as only the dyads engage in complexes with 1 : 1 stoichiometry, lodging in the pocket at the interface and establishing multiple interactions with the DNA skeleton. In the absence of NMR and crystallographic data, our study affords important proofs of binding at the interface pocket and clues on the role played by the ligand structure.
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Affiliation(s)
- Francesco Manoli
- Institute for Organic Synthesis and Photoreactivity (ISOF)National Research Council (CNR)Via P. Gobetti 10140129BolognaItaly
| | - Filippo Doria
- Department of ChemistryUniversity of PaviaV. le Taramelli 1027100PaviaItaly
| | - Giorgio Colombo
- Department of ChemistryUniversity of PaviaV. le Taramelli 1027100PaviaItaly
| | - Barbara Zambelli
- Department of Pharmacy and BiotechnologyUniversity of BolognaV. le Fanin 4040127BolognaItaly
| | - Mauro Freccero
- Department of ChemistryUniversity of PaviaV. le Taramelli 1027100PaviaItaly
| | - Ilse Manet
- Institute for Organic Synthesis and Photoreactivity (ISOF)National Research Council (CNR)Via P. Gobetti 10140129BolognaItaly
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14
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Bhosale SV, Al Kobaisi M, Jadhav RW, Morajkar PP, Jones LA, George S. Naphthalene diimides: perspectives and promise. Chem Soc Rev 2021; 50:9845-9998. [PMID: 34308940 DOI: 10.1039/d0cs00239a] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this review, we describe the developments in the field of naphthalene diimides (NDIs) from 2016 to the presentday. NDIs are shown to be an increasingly interesting class of molecules due to their electronic properties, large electron deficient aromatic cores and tendency to self-assemble into functional structures. Almost all NDIs possess high electron affinity, good charge carrier mobility, and excellent thermal and oxidative stability, making them promising candidates for applications in organic electronics, photovoltaic devices, and flexible displays. NDIs have also been extensively studied due to their potential real-world uses across a wide variety of applications including supramolecular chemistry, sensing, host-guest complexes for molecular switching devices, such as catenanes and rotaxanes, ion-channels, catalysis, and medicine and as non-fullerene accepters in solar cells. In recent years, NDI research with respect to supramolecular assemblies and mechanoluminescent properties has also gained considerable traction. Thus, this review will assist a wide range of readers and researchers including chemists, physicists, biologists, medicinal chemists and materials scientists in understanding the scope for development and applicability of NDI dyes in their respective fields through a discussion of the main properties of NDI derivatives and of the status of emerging applications.
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Affiliation(s)
- Sheshanath V Bhosale
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Mohammad Al Kobaisi
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Ratan W Jadhav
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Pranay P Morajkar
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa-403 206, India.
| | - Lathe A Jones
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Subi George
- New Chemistry Unit (NCU), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur PO, Bangalore-560064, India
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15
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Pandith A, Nagarajachari U, Siddappa RKG, Lee S, Park CJ, Sannathammegowda K, Seo YJ. Loop-mediated fluorescent probes for selective discrimination of parallel and antiparallel G-Quadruplexes. Bioorg Med Chem 2021; 35:116077. [PMID: 33631656 DOI: 10.1016/j.bmc.2021.116077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/04/2021] [Accepted: 02/09/2021] [Indexed: 10/22/2022]
Abstract
Herein we report simple pyridinium (1-3) and quinolinium (4) salts for the selective recognition of G-quadruplexes (G4s). Among them, the probe 1, interestingly, selectively discriminated parallel (c-KIT-1, c-KIT-2, c-MYC) G4s from anti-parallel/hybrid (22AG, HRAS-1, BOM-17, TBA) G4s at pH 7.2, through a switch on response in the far-red window. Significant changes in the absorption (broad 575 nm → sharp 505 nm) and emission of probe 1 at 620 nm, attributed to selective interaction with parallel G4s, resulted in complete disaggregation-induced monomer emission. Symmetrical push/pull molecular confinements across the styryl units in probe 1 enhanced the intramolecular charge transfer (ICT) by restricting the free rotation of CC units in the presence of sterically less hindered and highly accessible G4 surface/bottom tetrads in the parallel G4s, which is relatively lower extent in antiparallel/hybrid G4s. We confirm that the disaggregation of probe 1 was very effective in the presence of parallel G4-forming ODNs, due to the presence of highly available free surface area, resulting in additional π-stacking interactions. The selective sensing capabilities of probe 1 were analyzed using UV-Vis spectroscopy, fluorescence spectroscopy, molecular dynamics (MD)-based simulation studies, and 1H NMR spectroscopy. This study should afford insights for the future design of selective compounds targeting parallel G4s.
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Affiliation(s)
- Anup Pandith
- Department of Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | | | | | - Sungjin Lee
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Chin-Ju Park
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | | | - Young Jun Seo
- Department of Chemistry, Jeonbuk National University, Jeonju 54896, Republic of Korea.
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16
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Liu S, Bu L, Zhang Y, Yan J, Li L, Li G, Song Z, Huang J. Subtle Structural Changes of Dyes Lead to Distinctly Different Fluorescent Behaviors in Cellular Context: The Role of G-Quadruplex DNA Interaction Using Coumarin-Quinazolinone Conjugates as a Case Study. Anal Chem 2021; 93:5267-5276. [PMID: 33724782 DOI: 10.1021/acs.analchem.1c00301] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Fluorogenic organic materials have gained tremendous attention due to their unique properties. However, only a few of them are suitable for bioimaging. Their different behaviors in organic and cellular environments hinder their application in bioimaging. Thus understanding the photoluminescent behaviors of organic materials in a cellular context is particularly important for their rational design. Herein, we describe two coumarin-quinazolinone conjugates: CQ and MeCQ. The high structure similarity makes them possess similar physical and photophysical properties, including bright fluorescence ascribed to the monomer forms in organic solvents and aggregation-caused quenching (ACQ) effect due to self-assembly aggregation in aqueous solution. However, they behave quite differently in cellular context: that is, CQ exhibits bright fluorescence in living cells, while the fluorescence of MeCQ is almost undetectable. The different performance between CQ and MeCQ in living cells is attributed to their different scenario in G-quadruplex (G4) DNA interaction. CQ selectively binds with G4 DNA to recover its fluorescence via aggregation-disaggregation switching in living cells, while MeCQ remained in the aggregate form due to its poor interplay with G4 DNA. Furthermore, CQ is applied as a two-photon fluorescent dye, and its photoswitchable fluorescence capability is exploited for super-resolution imaging of the specific mitochondrial structure in living cells via the STORM technique.
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Affiliation(s)
- Song Liu
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, Hunan, P. R. China.,Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Lingli Bu
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, Hunan, P. R. China.,Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Yuming Zhang
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Jiangyu Yan
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Ling Li
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, Hunan, P. R. China.,Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Guorui Li
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, Hunan, P. R. China
| | - Zhibin Song
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P.R. China
| | - Jing Huang
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, Hunan, P. R. China.,Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, Hunan, P. R. China
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17
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Deiana M, Chand K, Jamroskovic J, Das RN, Obi I, Chorell E, Sabouri N. A site-specific self-assembled light-up rotor probe for selective recognition and stabilization of c-MYC G-quadruplex DNA. NANOSCALE 2020; 12:12950-12957. [PMID: 32525170 DOI: 10.1039/d0nr03404e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Direct and unambiguous evidence of the formation of G-quadruplexes (G4s) in human cells have shown their implication in several key biological events and has emphasized their role as important targets for small-molecule cancer therapeutics. Here, we report on the first example of a self-assembled molecular-rotor G4-binder able to discriminate between an extensive panel of G4 and non-G4 structures and to selectively light-up (up to 64-fold), bind (nanomolar range), and stabilize the c-MYC promoter G4 DNA. In particular, association with the c-MYC G4 triggers the disassembly of its supramolecular state (disaggregation-induced emission, DIE) and induces geometrical restrictions (motion-induced change in emission, MICE) leading to a significant enhancement of its emission yield. Moreover, this optical reporter is able to selectively stabilize the c-MYC G4 and inhibit DNA synthesis. Finally, by using confocal laser-scanning microscopy (CLSM) we show the ability of this compound to localize primarily in the subnuclear G4-rich compartments of cancer cells. This work provides a benchmark for the future design and development of a new generation of smart sequence-selective supramolecular G4-binders that combine outstanding sensing and stability properties, to be utilized in anti-cancer therapy.
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Affiliation(s)
- Marco Deiana
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden.
| | - Karam Chand
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden.
| | - Jan Jamroskovic
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden.
| | | | - Ikenna Obi
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden.
| | - Erik Chorell
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden.
| | - Nasim Sabouri
- Department of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden.
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18
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Kumar R, Chand K, Bhowmik S, Das RN, Bhattacharjee S, Hedenström M, Chorell E. Subtle structural alterations in G-quadruplex DNA regulate site specificity of fluorescence light-up probes. Nucleic Acids Res 2020; 48:1108-1119. [PMID: 31912160 PMCID: PMC7026600 DOI: 10.1093/nar/gkz1205] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 12/04/2019] [Accepted: 12/17/2019] [Indexed: 12/23/2022] Open
Abstract
G-quadruplex (G4) DNA structures are linked to key biological processes and human diseases. Small molecules that target specific G4 DNA structures and signal their presence would therefore be of great value as chemical research tools with potential to further advance towards diagnostic and therapeutic developments. However, the development of these types of specific compounds remain as a great challenge. In here, we have developed a compound with ability to specifically signal a certain c-MYC G4 DNA structure through a fluorescence light-up mechanism. Despite the compound's two binding sites on the G4 DNA structure, only one of them result in the fluorescence light-up effect. This G-tetrad selectivity proved to originate from a difference in flexibility that affected the binding affinity and tilt the compound out of the planar conformation required for the fluorescence light-up mechanism. The intertwined relation between the presented factors is likely the reason for the lack of examples using rational design to develop compounds with turn-on emission that specifically target certain G4 DNA structures. However, this study shows that it is indeed possible to develop such compounds and present insights into the molecular details of specific G4 DNA recognition and signaling to advance future studies of G4 biology.
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Affiliation(s)
- Rajendra Kumar
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Karam Chand
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Sudipta Bhowmik
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden.,Department of Biophysics, Molecular Biology & Bioinformatics, University of Calcutta, 92, APC Road, Kolkata 700009, India
| | | | - Snehasish Bhattacharjee
- Department of Biophysics, Molecular Biology & Bioinformatics, University of Calcutta, 92, APC Road, Kolkata 700009, India
| | | | - Erik Chorell
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
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19
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Trifunctionalized Naphthalene Diimides and Dimeric Analogues as G-Quadruplex-Targeting Anticancer Agents Selected by Affinity Chromatography. Int J Mol Sci 2020; 21:ijms21061964. [PMID: 32183038 PMCID: PMC7139804 DOI: 10.3390/ijms21061964] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/02/2020] [Accepted: 03/10/2020] [Indexed: 12/14/2022] Open
Abstract
A focused library of newly designed monomeric and dimeric naphthalene diimides (NDIs) was analyzed in its ability to recognize specific G-quadruplex (G4) structures discriminating duplex DNA. The best G4 ligands—according to an affinity chromatography-based screening method named G4-CPG—were tested on human cancer and healthy cells, inducing DNA damage at telomeres, and in parallel, showing selective antiproliferative activity on HeLa cancer cells with IC50 values in the low nanomolar range. CD and fluorescence spectroscopy studies allowed detailed investigation of the interaction in solution with different G4 and duplex DNA models of the most promising NDI of the series, as determined by combining the biophysical and biological assays’ data.
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20
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Jamroskovic J, Doimo M, Chand K, Obi I, Kumar R, Brännström K, Hedenström M, Nath Das R, Akhunzianov A, Deiana M, Kasho K, Sulis Sato S, Pourbozorgi PL, Mason JE, Medini P, Öhlund D, Wanrooij S, Chorell E, Sabouri N. Quinazoline Ligands Induce Cancer Cell Death through Selective STAT3 Inhibition and G-Quadruplex Stabilization. J Am Chem Soc 2020; 142:2876-2888. [PMID: 31990532 PMCID: PMC7307907 DOI: 10.1021/jacs.9b11232] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
The signal transducer
and activator of transcription 3 (STAT3)
protein is a master regulator of most key hallmarks and enablers of
cancer, including cell proliferation and the response to DNA damage.
G-Quadruplex (G4) structures are four-stranded noncanonical DNA structures
enriched at telomeres and oncogenes’ promoters. In cancer cells,
stabilization of G4 DNAs leads to replication stress and DNA damage
accumulation and is therefore considered a promising target for oncotherapy.
Here, we designed and synthesized novel quinazoline-based compounds
that simultaneously and selectively affect these two well-recognized
cancer targets, G4 DNA structures and the STAT3 protein. Using a combination
of in vitro assays, NMR, and molecular dynamics simulations, we show
that these small, uncharged compounds not only bind to the STAT3 protein
but also stabilize G4 structures. In human cultured cells, the compounds
inhibit phosphorylation-dependent activation of STAT3 without affecting
the antiapoptotic factor STAT1 and cause increased formation of G4
structures, as revealed by the use of a G4 DNA-specific antibody.
As a result, treated cells show slower DNA replication, DNA damage
checkpoint activation, and an increased apoptotic rate. Importantly,
cancer cells are more sensitive to these molecules compared to noncancerous
cell lines. This is the first report of a promising class of compounds
that not only targets the DNA damage cancer response machinery but
also simultaneously inhibits the STAT3-induced cancer cell proliferation,
demonstrating a novel approach in cancer therapy.
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Affiliation(s)
- Jan Jamroskovic
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | - Mara Doimo
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | - Karam Chand
- Department of Chemistry , Umeå University , Umeå 90736 , Sweden
| | - Ikenna Obi
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | - Rajendra Kumar
- Department of Chemistry , Umeå University , Umeå 90736 , Sweden
| | - Kristoffer Brännström
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | | | | | - Almaz Akhunzianov
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden.,Institute of Fundamental Medicine and Biology , Kazan Federal University , Kazan 420008 , Russia
| | - Marco Deiana
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | - Kazutoshi Kasho
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | - Sebastian Sulis Sato
- Department of Integrative Medical Biology , Umeå University , Umeå 90736 , Sweden
| | - Parham L Pourbozorgi
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | - James E Mason
- Department of Radiation Sciences , Umeå University , Umeå 90736 , Sweden
| | - Paolo Medini
- Department of Integrative Medical Biology , Umeå University , Umeå 90736 , Sweden
| | - Daniel Öhlund
- Department of Radiation Sciences , Umeå University , Umeå 90736 , Sweden
| | - Sjoerd Wanrooij
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
| | - Erik Chorell
- Department of Chemistry , Umeå University , Umeå 90736 , Sweden
| | - Nasim Sabouri
- Department of Medical Biochemistry and Biophysics , Umeå University , Umeå 90736 , Sweden
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21
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Deiana M, Chand K, Jamroskovic J, Obi I, Chorell E, Sabouri N. A Light‐up Logic Platform for Selective Recognition of Parallel G‐Quadruplex Structures via Disaggregation‐Induced Emission. Angew Chem Int Ed Engl 2020; 59:896-902. [DOI: 10.1002/anie.201912027] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/23/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Marco Deiana
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
| | - Karam Chand
- Department of ChemistryUmeå University 90187 Umeå Sweden
| | - Jan Jamroskovic
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
| | - Ikenna Obi
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
| | - Erik Chorell
- Department of ChemistryUmeå University 90187 Umeå Sweden
| | - Nasim Sabouri
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
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22
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23
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Deiana M, Chand K, Jamroskovic J, Obi I, Chorell E, Sabouri N. A Light‐up Logic Platform for Selective Recognition of Parallel G‐Quadruplex Structures via Disaggregation‐Induced Emission. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Marco Deiana
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
| | - Karam Chand
- Department of ChemistryUmeå University 90187 Umeå Sweden
| | - Jan Jamroskovic
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
| | - Ikenna Obi
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
| | - Erik Chorell
- Department of ChemistryUmeå University 90187 Umeå Sweden
| | - Nasim Sabouri
- Department of Medical Biochemistry and BiophysicsUmeå University 90187 Umeå Sweden
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24
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Pandith A, Siddappa RG, Seo YJ. Recent developments in novel blue/green/red/NIR small fluorescent probes for in cellulo tracking of RNA/DNA G-quadruplexes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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25
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Xie X, Zuffo M, Teulade-Fichou MP, Granzhan A. Identification of optimal fluorescent probes for G-quadruplex nucleic acids through systematic exploration of mono- and distyryl dye libraries. Beilstein J Org Chem 2019; 15:1872-1889. [PMID: 31467609 PMCID: PMC6693400 DOI: 10.3762/bjoc.15.183] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/23/2019] [Indexed: 12/20/2022] Open
Abstract
A library of 52 distyryl and 9 mono-styryl cationic dyes was synthesized and investigated with respect to their optical properties, propensity to aggregation in aqueous medium, and capacity to serve as fluorescence “light-up” probes for G-quadruplex (G4) DNA and RNA structures. Among the 61 compounds, 57 dyes showed preferential enhancement of fluorescence intensity in the presence of one or another G4-DNA or RNA structure, while no dye displayed preferential response to double-stranded DNA or single-stranded RNA analytes employed at equivalent nucleotide concentration. Thus, preferential fluorimetric response towards G4 structures appears to be a common feature of mono- and distyryl dyes, including long-known mono-styryl dyes used as mitochondrial probes or protein stains. However, the magnitude of the G4-induced “light-up” effect varies drastically, as a function of both the molecular structure of the dyes and the nature or topology of G4 analytes. Although our results do not allow to formulate comprehensive structure–properties relationships, we identified several structural motifs, such as indole- or pyrrole-substituted distyryl dyes, as well as simple mono-stryryl dyes such as DASPMI [2-(4-(dimethylamino)styryl)-1-methylpyridinium iodide] or its 4-isomer, as optimal fluorescent light-up probes characterized by high fluorimetric response (I/I0 of up to 550-fold), excellent selectivity with respect to double-stranded DNA or single-stranded RNA controls, high quantum yield in the presence of G4 analytes (up to 0.32), large Stokes shift (up to 150 nm) and, in certain cases, structural selectivity with respect to one or another G4 folding topology. These dyes can be considered as promising G4-responsive sensors for in vitro or imaging applications. As a possible application, we implemented a simple two-dye fluorimetric assay allowing rapid topological classification of G4-DNA structures.
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Affiliation(s)
- Xiao Xie
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Sud, Université Paris Saclay, Bât. 110, Centre universitaire Paris Sud, F-91405 Orsay, France
| | - Michela Zuffo
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Sud, Université Paris Saclay, Bât. 110, Centre universitaire Paris Sud, F-91405 Orsay, France
| | - Marie-Paule Teulade-Fichou
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Sud, Université Paris Saclay, Bât. 110, Centre universitaire Paris Sud, F-91405 Orsay, France
| | - Anton Granzhan
- CNRS UMR9187, INSERM U1196, Institut Curie, Université Paris Sud, Université Paris Saclay, Bât. 110, Centre universitaire Paris Sud, F-91405 Orsay, France
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26
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Zuffo M, Guédin A, Leriche ED, Doria F, Pirota V, Gabelica V, Mergny JL, Freccero M. More is not always better: finding the right trade-off between affinity and selectivity of a G-quadruplex ligand. Nucleic Acids Res 2019; 46:e115. [PMID: 29986058 PMCID: PMC6212845 DOI: 10.1093/nar/gky607] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Accepted: 06/25/2018] [Indexed: 12/17/2022] Open
Abstract
Guanine-rich nucleic acid sequences can fold into four-stranded G-quadruplex (G4) structures. Despite growing evidence for their biological significance, considerable work still needs to be done to detail their cellular occurrence and functions. Herein, we describe an optimized core-extended naphthalene diimide (cex-NDI) to be exploited as a G4 light-up sensor. The sensing mechanism relies on the shift of the aggregate-monomer equilibrium towards the bright monomeric state upon G4 binding. In contrast with the majority of other ligands, this novel cex-NDI is able to discriminate among G4s with different topologies, with a remarkable fluorescent response for the parallel ones. We investigate this sensing by means of biophysical methods, comparing the lead compound to a non-selective analogue. We demonstrate that mitigating the affinity of the binding core for G4s results in an increased selectivity and sensitivity of the fluorescent response. This is achieved by replacing positively charged substituents with diethylene glycol (DEG) side chains. Remarkably, the limit of detection values obtained for parallel G4s are more than one order of magnitude lower than those of the parallel-selective ligand N-methyl mesoporphyrin IX (NMM). Interestingly, the classical fluorescent intercalator displacement (FID) assay failed to reveal binding of cex-NDI to G4 because of the presence a ternary complex (G4-TO-cex-NDI) revealed by electrospray-MS. Our study thus provides a rational basis to design or modify existent scaffolds to redirect the binding preference of G4 ligands.
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Affiliation(s)
- Michela Zuffo
- Dipartimento di Chimica, Università di Pavia, Pavia 27100, Italy
| | - Aurore Guédin
- ARNA Laboratory, Université de Bordeaux, Inserm U1212, CNRS UMR5320, Institut Européen de Chimie Biologie (IECB), Pessac 33607, France
| | - Emma-Dune Leriche
- ARNA Laboratory, Université de Bordeaux, Inserm U1212, CNRS UMR5320, Institut Européen de Chimie Biologie (IECB), Pessac 33607, France
| | - Filippo Doria
- Dipartimento di Chimica, Università di Pavia, Pavia 27100, Italy
| | - Valentina Pirota
- Dipartimento di Chimica, Università di Pavia, Pavia 27100, Italy
| | - Valérie Gabelica
- ARNA Laboratory, Université de Bordeaux, Inserm U1212, CNRS UMR5320, Institut Européen de Chimie Biologie (IECB), Pessac 33607, France
| | - Jean-Louis Mergny
- ARNA Laboratory, Université de Bordeaux, Inserm U1212, CNRS UMR5320, Institut Européen de Chimie Biologie (IECB), Pessac 33607, France.,Institute of Biophysics, AS CR, Brno 61265, Czech Republic
| | - Mauro Freccero
- Dipartimento di Chimica, Università di Pavia, Pavia 27100, Italy
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27
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Doria F, Salvati E, Pompili L, Pirota V, D'Angelo C, Manoli F, Nadai M, Richter SN, Biroccio A, Manet I, Freccero M. Dyads of G‐Quadruplex Ligands Triggering DNA Damage Response and Tumour Cell Growth Inhibition at Subnanomolar Concentration. Chemistry 2019; 25:11085-11097. [DOI: 10.1002/chem.201900766] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 06/18/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Filippo Doria
- Department of ChemistryUniversity of Pavia V. le Taramelli 10 27100 Pavia Italy
| | - Erica Salvati
- Oncogenomic and Epigenetic UnitIRCCS Regina Elena National Cancer Institute Via Elio Chianes 53 00144 Rome Italy
- Present address: Institute of Molecular Biology and Pathology (IBPM)National Research Council (CNR) Via degli Apuli 4 00185 Rome Italy
| | - Luca Pompili
- Oncogenomic and Epigenetic UnitIRCCS Regina Elena National Cancer Institute Via Elio Chianes 53 00144 Rome Italy
| | - Valentina Pirota
- Department of ChemistryUniversity of Pavia V. le Taramelli 10 27100 Pavia Italy
| | - Carmen D'Angelo
- Oncogenomic and Epigenetic UnitIRCCS Regina Elena National Cancer Institute Via Elio Chianes 53 00144 Rome Italy
| | - Francesco Manoli
- Institute for Organic Synthesis and Photoreactivity (ISOF)National Research Council (CNR) Via P. Gobetti 101 40129 Bologna Italy
| | - Matteo Nadai
- Department of Molecular MedicineUniversity of Padua Via Gabelli 63 35121 Padua Italy
| | - Sara N. Richter
- Department of Molecular MedicineUniversity of Padua Via Gabelli 63 35121 Padua Italy
| | - Annamaria Biroccio
- Oncogenomic and Epigenetic UnitIRCCS Regina Elena National Cancer Institute Via Elio Chianes 53 00144 Rome Italy
| | - Ilse Manet
- Institute for Organic Synthesis and Photoreactivity (ISOF)National Research Council (CNR) Via P. Gobetti 101 40129 Bologna Italy
| | - Mauro Freccero
- Department of ChemistryUniversity of Pavia V. le Taramelli 10 27100 Pavia Italy
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28
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Domarco O, Kieler C, Pirker C, Dinhof C, Englinger B, Reisecker JM, Timelthaler G, García MD, Peinador C, Keppler BK, Berger W, Terenzi A. Subcellular Duplex DNA and G‐Quadruplex Interaction Profiling of a Hexagonal Pt
II
Metallacycle. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900934] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Olaya Domarco
- Universidade da Coruña Departamento de Química y Centro de Investigacións Científicas Avanzadas E-15071 A Coruña Spain
| | - Claudia Kieler
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Christine Pirker
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Carina Dinhof
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Bernhard Englinger
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Johannes M. Reisecker
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Gerald Timelthaler
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Marcos D. García
- Universidade da Coruña Departamento de Química y Centro de Investigacións Científicas Avanzadas E-15071 A Coruña Spain
| | - Carlos Peinador
- Universidade da Coruña Departamento de Química y Centro de Investigacións Científicas Avanzadas E-15071 A Coruña Spain
| | - Bernhard K. Keppler
- University of Vienna Institute of Inorganic Chemistry Waehringerstrasse 42 A-1090 Vienna Austria
| | - Walter Berger
- Medical University of Vienna Department of Medicine I Institute of Cancer Research and Comprehensive Cancer Center Borschkegasse 8a A-1090 Vienna Austria
| | - Alessio Terenzi
- University of Vienna Institute of Inorganic Chemistry Waehringerstrasse 42 A-1090 Vienna Austria
- Present address: Donostia International Physics Center Paseo Manuel de Lardizabal 4 20018 Donostia Spain
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29
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Domarco O, Kieler C, Pirker C, Dinhof C, Englinger B, Reisecker JM, Timelthaler G, García MD, Peinador C, Keppler BK, Berger W, Terenzi A. Subcellular Duplex DNA and G-Quadruplex Interaction Profiling of a Hexagonal Pt II Metallacycle. Angew Chem Int Ed Engl 2019; 58:8007-8012. [PMID: 31002438 PMCID: PMC6563712 DOI: 10.1002/anie.201900934] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/17/2019] [Indexed: 12/21/2022]
Abstract
Metal-driven self-assembly afforded a multitude of fascinating supramolecular coordination complexes (SCCs) with applications as catalysts, host-guest, and stimuli-responsive systems. However, the interest in the biological applications of SCCs is only starting to emerge and thorough characterization of their behavior in biological milieus is still lacking. Herein, we report on the synthesis and detailed in-cell tracking of a Pt2 L2 metallacycle. We show that our hexagonal supramolecule accumulates in cancer cell nuclei, exerting a distinctive blue fluorescence staining of chromatin resistant to UV photobleaching selectively in nucleolar G4-rich regions. SCC co-localizes with epitopes of the quadruplex-specific antibody BG4 and replaces other well-known G4 stabilizers. Moreover, the photophysical changes accompanying the metallacycle binding to G4s in solution (fluorescence quenching, absorption enhancement) also take place intracellularly, allowing its subcellular interaction tracking.
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Affiliation(s)
- Olaya Domarco
- Universidade da Coruña, Departamento de Química y Centro de Investigacións Científicas Avanzadas, E-15071 A, Coruña, Spain
| | - Claudia Kieler
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090, Vienna, Austria
| | - Christine Pirker
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090, Vienna, Austria
| | - Carina Dinhof
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090, Vienna, Austria
| | - Bernhard Englinger
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090, Vienna, Austria
| | - Johannes M Reisecker
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090, Vienna, Austria
| | - Gerald Timelthaler
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090, Vienna, Austria
| | - Marcos D García
- Universidade da Coruña, Departamento de Química y Centro de Investigacións Científicas Avanzadas, E-15071 A, Coruña, Spain
| | - Carlos Peinador
- Universidade da Coruña, Departamento de Química y Centro de Investigacións Científicas Avanzadas, E-15071 A, Coruña, Spain
| | - Bernhard K Keppler
- University of Vienna, Institute of Inorganic Chemistry, Waehringerstrasse 42, A-1090, Vienna, Austria
| | - Walter Berger
- Medical University of Vienna, Department of Medicine I, Institute of Cancer Research and Comprehensive Cancer Center, Borschkegasse 8a, A-1090, Vienna, Austria
| | - Alessio Terenzi
- University of Vienna, Institute of Inorganic Chemistry, Waehringerstrasse 42, A-1090, Vienna, Austria.,Present address: Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018, Donostia, Spain
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30
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Maniam S, Higginbotham HF, Bell TDM, Langford SJ. Harnessing Brightness in Naphthalene Diimides. Chemistry 2019; 25:7044-7057. [PMID: 30675936 DOI: 10.1002/chem.201806008] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Indexed: 12/20/2022]
Abstract
The development of brightly emissive compounds is of great research and commercial interest, with established and emerging applications across chemistry, biology, physics, medicine and engineering. Among the many types of molecules available, naphthalene diimides have been widely used for both fundamental photophysical studies and in practical applications that utilise fluorescence as an information readout. The monomeric naphthalene diimide is weakly fluorescent, however through various methods of core-derivatisation, it can be developed to be highly fluorescent and further functionalised to add utility. In this review, we highlight recent advances made in naphthalene diimide chemistry that have led to development of molecules with improved optical properties, and the design strategies utilised to produce bright fluorescence emission as small molecules or in supramolecular architectures.
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Affiliation(s)
- Subashani Maniam
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | | | - Toby D M Bell
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Steven J Langford
- Department of Chemistry and Biotechnology, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Victoria, 3122, Australia
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31
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Chen K, Zhao J, Li X, Gurzadyan GG. Anthracene–Naphthalenediimide Compact Electron Donor/Acceptor Dyads: Electronic Coupling, Electron Transfer, and Intersystem Crossing. J Phys Chem A 2019; 123:2503-2516. [PMID: 30860843 DOI: 10.1021/acs.jpca.8b11828] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kepeng Chen
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
- School of Chemistry and Chemical Engineering and Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China
| | - Xiaoxin Li
- Institute of Artificial Photosynthesis, State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
| | - Gagik G. Gurzadyan
- Institute of Artificial Photosynthesis, State Key Laboratory of Fine Chemicals, Dalian University of Technology, West Campus, 2 Ling-Gong Road, Dalian 116024, P. R. China
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32
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Transition metal complexes based aptamers as optical diagnostic tools for disease proteins and biomolecules. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2018.09.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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33
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Naphthalene Diimides as Multimodal G-Quadruplex-Selective Ligands. Molecules 2019; 24:molecules24030426. [PMID: 30682828 PMCID: PMC6384834 DOI: 10.3390/molecules24030426] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/11/2019] [Accepted: 01/22/2019] [Indexed: 02/03/2023] Open
Abstract
G-quadruplexes are four-stranded nucleic acids structures that can form in guanine-rich sequences. Following the observation that G-quadruplexes are particularly abundant in genomic regions related to cancer, such as telomeres and oncogenes promoters, several G-quadruplex-binding molecules have been developed for therapeutic purposes. Among them, naphthalene diimide derivatives have reported versatility, consistent selectivity and high affinity toward the G-quadruplex structures. In this review, we present the chemical features, synthesis and peculiar optoelectronic properties (absorption, emission, redox) that make naphtalene diimides so versatile for biomedical applications. We present the latest developments on naphthalene diimides as G-quadruplex ligands, focusing on their ability to bind G-quadruplexes at telomeres and oncogene promoters with consequent anticancer activity. Their different binding modes (reversible versus irreversible/covalent) towards G-quadruplexes and their additional use as antimicrobial agents are also presented and discussed.
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34
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Abstract
G-quadruplexes (G4s) are noncanonical nucleic acids structures involved in key regulatory and pathological roles in eukaryotes, prokaryotes, and viruses: the development of specific antibodies and fluorescent probes represent an invaluable tool to understand their biological relevance. We here present three protocols for the visualization of G4s in cells, both uninfected and HSV-1 infected, using a specific antibody and a fluorescent G4 ligand, and the effect of the fluorescent ligand on a G4 binding protein, nucleolin, upon binding of the molecule to the nucleic acids structure.
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Affiliation(s)
- Matteo Nadai
- Department of Molecular Medicine, University of Padua, Padua, Italy
| | - Sara N Richter
- Department of Molecular Medicine, University of Padua, Padua, Italy.
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35
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Kumari B, Yadav A, Pany SP, Pradeepkumar PI, Kanvah S. Cationic red emitting fluorophore: A light up NIR fluorescent probe for G4-DNA. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 190:128-136. [PMID: 30529810 DOI: 10.1016/j.jphotobiol.2018.10.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/18/2018] [Accepted: 10/06/2018] [Indexed: 01/23/2023]
Abstract
Guanine (G) quadruplexes (G4) are nucleic acid secondary structures formed by G-rich sequences, commonly found in human telomeric and oncogene-promoter regions, have emerged as targets for regulation of multiple biological processes. Considering their importance, targeting the G-quadruplex structure with small molecular binders is extremely pertinent. In this work, red emitting water soluble fluorophores bearing push-pull substituents were synthesized and examined for their interaction with human telomeric G4 and duplex (ds) -DNAs. The presence of a strong electron donating (dimethylamino) and electron withdrawing (cationic pyridinium) groups linked through a conjugated double bond helps in water solubility and enabling the emission in the near IR region (>700-nm). Binding of this cationic dye to the G4-DNA yields multiple-fold emission enhancement (~70 fold with G4-DNA vs. ~7 fold with ds-DNA) along with hypsochromic wavelength shifts (35 nm with G4-DNA and 8 nm with ds-DNA). The remarkable emission changes, ~2-4 fold enhanced binding efficiency noted with the antiparallel conformation of G4-DNA indicates preferential selectivity over ds-DNA. The molecular docking and dynamics studies of the ligands with duplex and G4-DNA were performed, and they provide insights into the mode of binding of these dyes with G4-DNA and supplement the experimental observations.
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Affiliation(s)
- Beena Kumari
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382 355, India
| | - Akanksha Yadav
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Sushree P Pany
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - P I Pradeepkumar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
| | - Sriram Kanvah
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382 355, India.
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36
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Manna S, Sarkar D, Srivatsan SG. A Dual-App Nucleoside Probe Provides Structural Insights into the Human Telomeric Overhang in Live Cells. J Am Chem Soc 2018; 140:12622-12633. [PMID: 30192541 PMCID: PMC6348103 DOI: 10.1021/jacs.8b08436] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Understanding the topology adopted by individual G-quadruplex (GQ)-forming sequences in vivo and targeting a specific GQ motif among others in the genome will have a profound impact on GQ-directed therapeutic strategies. However, this remains a major challenge as most of the tools poorly distinguish different GQ conformations and are not suitable for both cell-free and in-cell analysis. Here, we describe an innovative probe design to investigate GQ conformations and recognition in both cell-free and native cellular environments by using a conformation-sensitive dual-app nucleoside analogue probe. The nucleoside probe, derived by conjugating fluorobenzofuran at the 5-position of 2'-deoxyuridine, is composed of a microenvironment-sensitive fluorophore and an in-cell NMR compatible 19F label. This noninvasive nucleoside, incorporated into the human telomeric DNA oligonucleotide repeat, serves as a common probe to distinguish different GQ topologies and quantify topology-specific binding of ligands by fluorescence and NMR techniques. Importantly, unique signatures displayed by the 19F-labeled nucleoside for different GQs enabled a systematic study in Xenopus laevis oocytes to provide new structural insights into the GQ topologies adopted by human telomeric overhang in cells, which so far has remained unclear. Studies using synthetic cell models, immunostaining on fixed cells, and crystallization conditions suggest that parallel GQ is the preferred conformation of telomeric DNA repeat. However, our findings using the dual-app probe clearly indicate that multiple structures including hybrid-type parallel-antiparallel and parallel GQs are formed in the cellular environment. Taken together, our findings open new experimental strategies to investigate topology, recognition, and therapeutic potential of individual GQ-forming motifs in a biologically relevant context.
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Affiliation(s)
- Sudeshna Manna
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411008, India
| | - Debayan Sarkar
- Department of Biology, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411008, India
| | - Seergazhi G. Srivatsan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411008, India
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37
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Manna S, Srivatsan SG. Fluorescence-based tools to probe G-quadruplexes in cell-free and cellular environments. RSC Adv 2018; 8:25673-25694. [PMID: 30210793 PMCID: PMC6130854 DOI: 10.1039/c8ra03708f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 07/08/2018] [Indexed: 12/26/2022] Open
Abstract
Biophysical and biochemical investigations provide compelling evidence connecting the four-stranded G-quadruplex (GQ) structure with its role in regulating multiple cellular processes. Hence, modulating the function of GQs by using small molecule binders is being actively pursued as a strategy to develop new chemotherapeutic agents. However, sequence diversity and structural polymorphism of GQs have posed immense challenges in terms of understanding what conformation a G-rich sequence adopts inside the cell and how to specifically target a GQ motif amidst several other GQ-forming sequences. In this context, here we review recent developments in the applications of biophysical tools that use fluorescence readout to probe the GQ structure and recognition in cell-free and cellular environments. First, we provide a detailed discussion on the utility of covalently labeled environment-sensitive fluorescent nucleoside analogs in assessing the subtle difference in GQ structures and their ligand binding abilities. Furthermore, a detailed discussion on structure-specific antibodies and small molecule probes used to visualize and confirm the existence of DNA and RNA GQs in cells is provided. We also highlight the open challenges in the study of tetraplexes (GQ and i-motif structures) and how addressing these challenges by developing new tools and techniques will have a profound impact on tetraplex-directed therapeutic strategies.
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Affiliation(s)
- Sudeshna Manna
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), PuneDr. Homi Bhabha RoadPune 411008India
| | - Seergazhi G. Srivatsan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), PuneDr. Homi Bhabha RoadPune 411008India
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38
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Tian T, Chen YQ, Wang SR, Zhou X. G-Quadruplex: A Regulator of Gene Expression and Its Chemical Targeting. Chem 2018. [DOI: 10.1016/j.chempr.2018.02.014] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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39
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Ramani P, Cauteruccio S, Licandro E, Baldoli C. Synthesis of luminescent 2,3-diphenylmaleimide-labelled peptide nucleic acid oligomers. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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40
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Lago S, Nadai M, Rossetto M, Richter SN. Surface Plasmon Resonance kinetic analysis of the interaction between G-quadruplex nucleic acids and an anti-G-quadruplex monoclonal antibody. Biochim Biophys Acta Gen Subj 2018. [PMID: 29524541 PMCID: PMC5988565 DOI: 10.1016/j.bbagen.2018.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND G-quadruplexes (G4s) are nucleic acids secondary structures formed in guanine-rich sequences. Anti-G4 antibodies represent a tool for the direct investigation of G4s in cells. Surface Plasmon Resonance (SPR) is a highly sensitive technology, suitable for assessing the affinity between biomolecules. We here aimed at improving the orientation of an anti-G4 antibody on the SPR sensor chip to optimize detection of binding antigens. METHODS SPR was employed to characterize the anti-G4 antibody interaction with G4 and non-G4 oligonucleotides. Dextran-functionalized sensor chips were used both in covalent coupling and capturing procedures. RESULTS The use of two leading molecule for orienting the antibody of interest allowed to improve its activity from completely non-functional to 65% active. The specificity of the anti-G4 antobody for G4 structures could thus be assessed with high sensitivity and reliability. CONCLUSIONS Optimization of the immobilization protocol for SPR biosensing, allowed us to determine the anti-G4 antibody affinity and specificity for G4 antigens with higher sensitivity with respect to other in vitro assays such as ELISA. Anti-G4 antibody specificity is a fundamental assumption for the future utilization of this kind of antibodies for monitoring G4s directly in cells. GENERAL SIGNIFICANCE The heterogeneous orientation of amine-coupling immobilized ligands is a general problem that often leads to partial or complete inactivation of the molecules. Here we describe a new strategy for improving ligand orientation: driving it from two sides. This principle can be virtually applied to every molecule that loses its activity or is poorly immobilized after standard coupling to the SPR chip surface.
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Affiliation(s)
- Sara Lago
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy
| | - Matteo Nadai
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy
| | - Monica Rossetto
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy
| | - Sara N Richter
- Department of Molecular Medicine, University of Padua, via A. Gabelli 63, 35121 Padua, Italy.
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41
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Wang MQ, Liu XN, Guo ZJ, Feng C, Rui M. Synthesis of quinolinium-based probes and studies of their effects for selective G-quadruplex DNA targeting. NEW J CHEM 2018. [DOI: 10.1039/c8nj00203g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two quinolinium conjugates as G-quadruplex probes were presented. The binding properties and mechanism were investigated using both experimental and docking studies.
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Affiliation(s)
- Ming-Qi Wang
- School of Pharmacy
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Xiao-Ning Liu
- School of Pharmacy
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Zhong-Jian Guo
- Institute of Life Sciences
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Chunlai Feng
- School of Pharmacy
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Mengjie Rui
- School of Pharmacy
- Jiangsu University
- Zhenjiang
- P. R. China
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42
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Suseela YV, Narayanaswamy N, Pratihar S, Govindaraju T. Far-red fluorescent probes for canonical and non-canonical nucleic acid structures: current progress and future implications. Chem Soc Rev 2018; 47:1098-1131. [DOI: 10.1039/c7cs00774d] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Our review presents the recent progress on far-red fluorescent probes of canonical and non-canonical nucleic acid (NA) structures, critically discusses the design principles, applications, limitations and outline the future prospects of developing newer probes with target-specificity for different NA structures.
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Affiliation(s)
- Y. V. Suseela
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru 560064
- India
| | - Nagarjun Narayanaswamy
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru 560064
- India
| | - Sumon Pratihar
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru 560064
- India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bengaluru 560064
- India
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43
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Liu M, Onchaiya S, Tan LYF, Haghighatbin MA, Luu T, Owyong TC, Hushiarian R, Hogan CF, Smith TA, Hong Y. 9-Vinylanthracene Based Fluorogens: Synthesis, Structure-Property Relationships and Applications. Molecules 2017; 22:molecules22122148. [PMID: 29207549 PMCID: PMC6149741 DOI: 10.3390/molecules22122148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 11/24/2017] [Accepted: 12/01/2017] [Indexed: 01/16/2023] Open
Abstract
Fluorescent dyes with aggregation-induced emission (AIE) properties exhibit intensified emission upon aggregation. They are promising candidates to study biomolecules and cellular changes in aqueous environments when aggregation formation occurs. Here, we report a group of 9-position functionalized anthracene derivatives that were conveniently synthesized by the palladium-catalyzed Heck reaction. Using fluorometric analyses, these dyes were confirmed to show AIE behavior upon forming aggregates at high concentrations, in viscous solvents, and when poorly solubilized. Their photophysical properties were then further correlated with their structural features, using density functional theory (DFT) calculation. Finally, we demonstrated their potential applications in monitoring pH changes, quantifying globular proteins, as well as cell imaging with confocal microscopy.
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Affiliation(s)
- Mengjie Liu
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
| | - Sawaros Onchaiya
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
| | - Lewis Yi Fong Tan
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
| | - Mohammad A Haghighatbin
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
| | - Tracey Luu
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
| | - Tze Cin Owyong
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
- School of Chemistry, The University of Melbourne, Parkville, VIC 3010 Australia.
| | - Roozbeh Hushiarian
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
| | - Conor F Hogan
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
| | - Trevor A Smith
- School of Chemistry, The University of Melbourne, Parkville, VIC 3010 Australia.
| | - Yuning Hong
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC 3086 Australia.
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44
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Amor S, Yang SY, Wong JMY, Monchaud D. Cellular Detection of G-Quadruplexes by Optical Imaging Methods. ACTA ACUST UNITED AC 2017; 76:4.33.1-4.33.19. [PMID: 28862343 DOI: 10.1002/cpcb.29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
G-quadruplexes (G4s) are higher-order nucleic acid structures that fold from guanine (G)-rich DNA and RNA strands. This field of research gains traction as a major chemical biology area since it aims at uncovering many key cellular mechanisms in which quadruplexes are involved. The wealth of knowledge acquired over the past three decades strongly supports pivotal roles of G4 in the regulation of gene expression at both transcriptional (DNA quadruplexes) and translational levels (RNA quadruplexes). Recent biochemical discoveries uncovered myriad of additional G4 actions: from chromosomal stability to the firing of replication origins, from telomere homeostasis to functional dysregulations underlying genetic diseases (including cancers and neurodegeneration). Here, we listed a repertoire of protocols that we have developed over the past years to visualize quadruplexes in cells. These achievements were made possible thanks to the discovery of a novel family of versatile quadruplex-selective fluorophores, the twice-as-smart quadruplex ligands named TASQ (for template-assembled synthetic G-quartet). The versatility of this probe allows for multiple imaging techniques in both fixed and live cells, including the use of the multiphoton microscopy, confocal microscopy, and real-time fluorescent image collection. © 2017 by John Wiley & Sons, Inc.
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Affiliation(s)
- Souheila Amor
- Institut de Chimie Moléculaire, ICMUB CNRS UMR6302, UBFC Dijon, France
| | - Sunny Y Yang
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, Canada
| | - Judy M Y Wong
- Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, Canada
| | - David Monchaud
- Institut de Chimie Moléculaire, ICMUB CNRS UMR6302, UBFC Dijon, France
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45
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Lefebvre J, Guetta C, Poyer F, Mahuteau-Betzer F, Teulade-Fichou MP. Copper-Alkyne Complexation Responsible for the Nucleolar Localization of Quadruplex Nucleic Acid Drugs Labeled by Click Reactions. Angew Chem Int Ed Engl 2017; 56:11365-11369. [DOI: 10.1002/anie.201703783] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Joël Lefebvre
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Corinne Guetta
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Florent Poyer
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Florence Mahuteau-Betzer
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Marie-Paule Teulade-Fichou
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
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46
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Lefebvre J, Guetta C, Poyer F, Mahuteau-Betzer F, Teulade-Fichou MP. Copper-Alkyne Complexation Responsible for the Nucleolar Localization of Quadruplex Nucleic Acid Drugs Labeled by Click Reactions. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703783] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Joël Lefebvre
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Corinne Guetta
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Florent Poyer
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Florence Mahuteau-Betzer
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
| | - Marie-Paule Teulade-Fichou
- Research unit “Chemistry, Modelling and Imaging for Biology”, CNRS/UMR9187-INSERM/U1196; Institut Curie, Centre de recherché; Campus universitaire Paris-Sud 91405 Orsay France
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48
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Grande V, Doria F, Freccero M, Würthner F. An Aggregating Amphiphilic Squaraine: A Light-up Probe That Discriminates Parallel G-Quadruplexes. Angew Chem Int Ed Engl 2017; 56:7520-7524. [DOI: 10.1002/anie.201702096] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 04/10/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Vincenzo Grande
- Universität Würzburg; Institut für Organische Chemie & Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI); Am Hubland 97074 Würzburg Germany
| | - Filippo Doria
- Università di Pavia; Dipartimento di Chimica; Viale Taramelli 10 27100 Pavia Italy
| | - Mauro Freccero
- Università di Pavia; Dipartimento di Chimica; Viale Taramelli 10 27100 Pavia Italy
| | - Frank Würthner
- Universität Würzburg; Institut für Organische Chemie & Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI); Am Hubland 97074 Würzburg Germany
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49
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Grande V, Doria F, Freccero M, Würthner F. An Aggregating Amphiphilic Squaraine: A Light-up Probe That Discriminates Parallel G-Quadruplexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702096] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Vincenzo Grande
- Universität Würzburg; Institut für Organische Chemie & Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI); Am Hubland 97074 Würzburg Germany
| | - Filippo Doria
- Università di Pavia; Dipartimento di Chimica; Viale Taramelli 10 27100 Pavia Italy
| | - Mauro Freccero
- Università di Pavia; Dipartimento di Chimica; Viale Taramelli 10 27100 Pavia Italy
| | - Frank Würthner
- Universität Würzburg; Institut für Organische Chemie & Center for Nanosystems Chemistry & Bavarian Polymer Institute (BPI); Am Hubland 97074 Würzburg Germany
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