1
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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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Guy L, Mosser M, Pitrat D, Mulatier JC, Kukułka M, Srebro-Hooper M, Jeanneau E, Bensalah-Ledoux A, Baguenard B, Guy S. Acid/Base-Triggered Photophysical and Chiroptical Switching in a Series of Helicenoid Compounds. Molecules 2023; 28:7322. [PMID: 37959742 PMCID: PMC10647711 DOI: 10.3390/molecules28217322] [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: 10/06/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
A series of molecules that possess two quinolines, benzoquinolines, or phenanthrolines connected in a chiral fashion by a biaryl junction along with their water-soluble derivatives was developed and characterized. The influence of the structure on the basicity of the nitrogen atoms in two heterocycles was examined and the photophysical and chiroptical switching activity of the compounds upon protonation was studied both experimentally and computationally. The results demonstrated that changes in the electronic structure of the protonated vs. neutral species, promoting a bathochromic shift of dominant electronic transitions and alternation of their character from π-to-π* to charge-transfer-type, when additionally accompanied by the high structural flexibility of a system, leading to changes in conformational preferences upon proton binding, produce particularly pronounced modifications of the spectral properties in acidic medium. The latter combined with reversibility of the read-out make some of the molecules in this series very promising multifunctional pH probes.
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Affiliation(s)
- Laure Guy
- Laboratoire de Chimie UMR 5182, Université Lyon, ENS de Lyon, CNRS, F-69342 Lyon, France; (M.M.); (D.P.); (J.-C.M.)
| | - Maëlle Mosser
- Laboratoire de Chimie UMR 5182, Université Lyon, ENS de Lyon, CNRS, F-69342 Lyon, France; (M.M.); (D.P.); (J.-C.M.)
| | - Delphine Pitrat
- Laboratoire de Chimie UMR 5182, Université Lyon, ENS de Lyon, CNRS, F-69342 Lyon, France; (M.M.); (D.P.); (J.-C.M.)
| | - Jean-Christophe Mulatier
- Laboratoire de Chimie UMR 5182, Université Lyon, ENS de Lyon, CNRS, F-69342 Lyon, France; (M.M.); (D.P.); (J.-C.M.)
| | - Mercedes Kukułka
- Faculty of Chemistry, Jagiellonian University, 30-387 Krakow, Poland
| | | | - Erwann Jeanneau
- Centre de Diffractométrie Henri Longchambon, Université Claude Bernard Lyon 1, 5 Rue de la Doua, F-69100 Villeurbanne, France;
| | - Amina Bensalah-Ledoux
- Institut Lumière Matière UMR 5306, Université Lyon, CNRS, F-69622 Villeurbanne, France; (A.B.-L.); (B.B.); (S.G.)
| | - Bruno Baguenard
- Institut Lumière Matière UMR 5306, Université Lyon, CNRS, F-69622 Villeurbanne, France; (A.B.-L.); (B.B.); (S.G.)
| | - Stéphan Guy
- Institut Lumière Matière UMR 5306, Université Lyon, CNRS, F-69622 Villeurbanne, France; (A.B.-L.); (B.B.); (S.G.)
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3
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Deiana M, Andrés Castán J, Josse P, Kahsay A, Sánchez D, Morice K, Gillet N, Ravindranath R, Patel A, Sengupta P, Obi I, Rodriguez-Marquez E, Khrouz L, Dumont E, Abad Galán L, Allain M, Walker B, Ahn HS, Maury O, Blanchard P, Le Bahers T, Öhlund D, von Hofsten J, Monnereau C, Cabanetos C, Sabouri N. A new G-quadruplex-specific photosensitizer inducing genome instability in cancer cells by triggering oxidative DNA damage and impeding replication fork progression. Nucleic Acids Res 2023; 51:6264-6285. [PMID: 37191066 PMCID: PMC10325911 DOI: 10.1093/nar/gkad365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 03/31/2023] [Accepted: 04/26/2023] [Indexed: 05/17/2023] Open
Abstract
Photodynamic therapy (PDT) ideally relies on the administration, selective accumulation and photoactivation of a photosensitizer (PS) into diseased tissues. In this context, we report a new heavy-atom-free fluorescent G-quadruplex (G4) DNA-binding PS, named DBI. We reveal by fluorescence microscopy that DBI preferentially localizes in intraluminal vesicles (ILVs), precursors of exosomes, which are key components of cancer cell proliferation. Moreover, purified exosomal DNA was recognized by a G4-specific antibody, thus highlighting the presence of such G4-forming sequences in the vesicles. Despite the absence of fluorescence signal from DBI in nuclei, light-irradiated DBI-treated cells generated reactive oxygen species (ROS), triggering a 3-fold increase of nuclear G4 foci, slowing fork progression and elevated levels of both DNA base damage, 8-oxoguanine, and double-stranded DNA breaks. Consequently, DBI was found to exert significant phototoxic effects (at nanomolar scale) toward cancer cell lines and tumor organoids. Furthermore, in vivo testing reveals that photoactivation of DBI induces not only G4 formation and DNA damage but also apoptosis in zebrafish, specifically in the area where DBI had accumulated. Collectively, this approach shows significant promise for image-guided PDT.
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Affiliation(s)
- Marco Deiana
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
| | | | - Pierre Josse
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Abraha Kahsay
- Department of Integrative Medical Biology, Umeå University, SE-901 87, Umeå, Sweden
| | | | - Korentin Morice
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Natacha Gillet
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Ranjitha Ravindranath
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
- Indian Institute for Science Education and Research (IISER), Tirupati-517507, India
| | - Ankit Kumar Patel
- Department of Radiation Sciences/Oncology, Umeå University, SE-901 87, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, SE-901 87, Umeå, Sweden
| | - Pallabi Sengupta
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
| | - Ikenna Obi
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
| | | | - Lhoussain Khrouz
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Elise Dumont
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
- Institut Universitaire de France, 5 rue Descartes, 75005 Paris, France
| | - Laura Abad Galán
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Magali Allain
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Bright Walker
- Department of Chemistry, Kyung Hee University, Seoul, 02447, South Korea
| | - Hyun Seo Ahn
- Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Olivier Maury
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | | | - Tangui Le Bahers
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
- Institut Universitaire de France, 5 rue Descartes, 75005 Paris, France
| | - Daniel Öhlund
- Department of Radiation Sciences/Oncology, Umeå University, SE-901 87, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, SE-901 87, Umeå, Sweden
| | - Jonas von Hofsten
- Department of Integrative Medical Biology, Umeå University, SE-901 87, Umeå, Sweden
| | - Cyrille Monnereau
- ENS de Lyon, CNRS, Université Claude Bernard Lyon 1, Laboratoire de Chimie UMR 5182, F-69342 Lyon, France
| | - Clément Cabanetos
- Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
- Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, South Korea
- Building Blocks for FUture Electronics Laboratory (2BFUEL), IRL CNRS 2002, Yonsei University, Seoul, South Korea
| | - Nasim Sabouri
- Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87, Umeå, Sweden
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Dohmen C, Ihmels H. Switching between DNA binding modes with a photo- and redox-active DNA-targeting ligand, part II: the influence of the substitution pattern. Org Biomol Chem 2023. [PMID: 37401249 DOI: 10.1039/d3ob00879g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
A disulfide-functionalized photoactive DNA ligand is presented that enables the control of its DNA-binding properties by a combination of a photocycloaddition reaction and the redox reactivity of the sulfide/disulfide functionalities. In particular, the initially applied ligand binds to DNA by a combination of intercalation and groove-binding of separate benzo[b]quinolizinium units. The association to DNA is interrupted by an intramolecular [4 + 4] photocycloaddition to the non-binding head-to-head cyclomers. In turn, the subsequent cleavage of these cyclomers with dithiothreitol (DTT) regains temporarily a DNA-intercalating benzoquinolizinium ligand that is eventually converted into a non-binding benzothiophene. As a special feature, this sequence of controlled deactivation, recovery and internal shut-off of DNA-binding properties can be performed directly in the presence of DNA.
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Affiliation(s)
- Christoph Dohmen
- Department of Chemistry - Biology, University of Siegen, and Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
| | - Heiko Ihmels
- Department of Chemistry - Biology, University of Siegen, and Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
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5
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Dohmen C, Ihmels H. Switching between DNA binding modes with a photo- and redox-active DNA-targeting ligand. Org Biomol Chem 2023; 21:1958-1966. [PMID: 36762516 DOI: 10.1039/d3ob00013c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A disulfide-functionalized bis-benzo[b]quinolizinium is presented that is transformed quantitatively into its cyclomers in a fast intramolecular [4 + 4] photocycloaddition. Both the bis-quinolizinium and the photocyclomers react with glutathione (GSH) or dithiothreitol (DTT) to give 9-(sulfanylmethyl)benzo[b]quinolizinium as the only product. As all components of this reaction sequence have different DNA-binding properties, it enables the external control and switching of DNA association. Hence, the bis-benzo[b]quinolizinium binds strongly to DNA and is deactivated upon photocycloaddition to the non-binding cyclomers. In turn, the subsequent cleavage of the cyclomers with DTT regains a DNA-intercalating benzoquinolizinium ligand. Notably, this sequence of controlled deactivation and recovery of DNA-binding properties can be performed directly in the presence of DNA.
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Affiliation(s)
- Christoph Dohmen
- Department of Chemistry and Biology, University of Siegen, and Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
| | - Heiko Ihmels
- Department of Chemistry and Biology, University of Siegen, and Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Adolf-Reichwein-Str. 2, 57068 Siegen, Germany.
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6
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Deiana M, Chand K, Chorell E, Sabouri N. Parallel G-Quadruplex DNA Structures from Nuclear and Mitochondrial Genomes Trigger Emission Enhancement in a Nonfluorescent Nano-aggregated Fluorine-Boron-Based Dye. J Phys Chem Lett 2023; 14:1862-1869. [PMID: 36779779 PMCID: PMC9940295 DOI: 10.1021/acs.jpclett.2c03301] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/02/2023] [Indexed: 05/28/2023]
Abstract
Molecular self-assembly is a powerful tool for the development of functional nanostructures with adaptive optical properties. However, in aqueous solution, the hydrophobic effects in the monomeric units often afford supramolecular architectures with typical side-by-side π-stacking arrangement with compromised emissive properties. Here, we report on the role of parallel DNA guanine quadruplexes (G4s) as supramolecular disaggregating-capture systems capable of coordinating a zwitterionic fluorine-boron-based dye and promoting activation of its fluorescence signal. The dye's high binding affinity for parallel G4s compared to nonparallel topologies leads to a selective disassembly of the dye's supramolecular state upon contact with parallel G4s. This results in a strong and selective disaggregation-induced emission that signals the presence of parallel G4s observable by the naked eye and inside cells. The molecular recognition strategy reported here will be useful for a multitude of affinity-based applications with potential in sensing and imaging systems.
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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
| | - 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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7
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Deiana M, Josse P, Dalinot C, Osmolovskyi A, Marqués PS, Castán JMA, Abad Galán L, Allain M, Khrouz L, Maury O, Le Bahers T, Blanchard P, Dabos-Seignon S, Monnereau C, Sabouri N, Cabanetos C. Site-selected thionated benzothioxanthene chromophores as heavy-atom-free small-molecule photosensitizers for photodynamic therapy. Commun Chem 2022; 5:142. [PMID: 36697939 PMCID: PMC9814739 DOI: 10.1038/s42004-022-00752-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 10/07/2022] [Indexed: 01/27/2023] Open
Abstract
Photodynamic therapy is a clinically approved anticancer modality that employs a light-activated agent (photosensitizer) to generate cytotoxic reactive oxygen species (ROS). There is therefore a growing interest for developing innovative photosensitizing agents with enhanced phototherapeutic performances. Herein, we report on a rational design synthetic procedure that converts the ultrabright benzothioxanthene imide (BTI) dye into three heavy-atom-free thionated compounds featuring close-to-unit singlet oxygen quantum yields. In contrast to the BTI, these thionated analogs display an almost fully quenched fluorescence emission, in agreement with the formation of highly populated triplet states. Indeed, the sequential thionation on the BTI scaffold induces torsion of its skeleton reducing the singlet-triplet energy gaps and enhancing the spin-orbit coupling. These potential PSs show potent cancer-cell ablation under light irradiation while remaining non-toxic under dark condition owing to a photo-cytotoxic mechanism that we believe simultaneously involves singlet oxygen and superoxide species, which could be both characterized in vitro. Our study demonstrates that this simple site-selected thionated platform is an effective strategy to convert conventional carbonyl-containing fluorophores into phototherapeutic agents for anticancer PDT.
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Affiliation(s)
- Marco Deiana
- grid.12650.300000 0001 1034 3451Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87 Umeå, Sweden
| | - Pierre Josse
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Clément Dalinot
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Artem Osmolovskyi
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Pablo Simón Marqués
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - José María Andrés Castán
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Laura Abad Galán
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Magali Allain
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Lhoussain Khrouz
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Olivier Maury
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Tangui Le Bahers
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Philippe Blanchard
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Sylvie Dabos-Seignon
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France
| | - Cyrille Monnereau
- grid.15140.310000 0001 2175 9188Univ Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, F-69342 Lyon, France
| | - Nasim Sabouri
- grid.12650.300000 0001 1034 3451Department of Medical Biochemistry and Biophysics, Umeå University, SE-901 87 Umeå, Sweden
| | - Clément Cabanetos
- grid.463978.70000 0001 2288 0078Univ Angers, CNRS, MOLTECH-ANJOU, SFR MATRIX, F-49000 Angers, France ,grid.15444.300000 0004 0470 5454IRL CNRS 2002, 2BFUEL, CNRS -Yonsei University, Seoul, South Korea
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Jamroskovic J, Deiana M, Sabouri N. Probing the folding pathways of four-stranded intercalated cytosine-rich motifs at single base-pair resolution. Biochimie 2022; 199:81-91. [PMID: 35452743 DOI: 10.1016/j.biochi.2022.04.007] [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: 03/06/2022] [Revised: 04/13/2022] [Accepted: 04/13/2022] [Indexed: 11/24/2022]
Abstract
Cytosine-rich DNA can fold into four-stranded intercalated structures called i-motifs (iMs) under acidic conditions through the formation of hemi-protonated C:C+ base pairs. However, the folding and stability of iMs rely on many other factors that are not yet fully understood. Here, we combined biochemical and biophysical approaches to determine the factors influencing iM stability under a wide range of experimental conditions. By using high-resolution primer extension assays, circular dichroism, and absorption spectroscopies, we demonstrate that the stabilities of three different biologically relevant iMs are not dependent on molecular crowding agents. Instead, some of the crowding agents affected overall DNA synthesis. We also tested a range of small molecules to determine their effect on iM stabilization at physiological temperature and demonstrated that the G-quadruplex-specific molecule CX-5461 is also a promising candidate for selective iM stabilization. This work provides important insights into the requirements needed for different assays to accurately study iM stabilization, which will serve as important tools for understanding the contribution of iMs in cell regulation and their potential as therapeutic targets.
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Affiliation(s)
- Jan Jamroskovic
- Department of Medical Biochemistry and Biophysics, Umeå University, 901 87, Umeå, Sweden.
| | - Marco Deiana
- Department of Medical Biochemistry and Biophysics, Umeå University, 901 87, Umeå, Sweden
| | - Nasim Sabouri
- Department of Medical Biochemistry and Biophysics, Umeå University, 901 87, Umeå, Sweden.
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9
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Dudek M, Deiana M, Szkaradek K, Janicki MJ, Pokładek Z, Góra RW, Matczyszyn K. Light-Induced Modulation of Chiral Functions in G-Quadruplex-Photochrome Systems. J Phys Chem Lett 2021; 12:9436-9441. [PMID: 34554762 PMCID: PMC8503878 DOI: 10.1021/acs.jpclett.1c02207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/20/2021] [Indexed: 05/05/2023]
Abstract
The design of artificially engineered chiral structures has received much attention, but the implementation of dynamic functions to modulate the chiroptical response of the systems is less explored. Here, we present a light-responsive G-quadruplex (G4)-based assembly in which chirality enrichment is induced, tuned, and fueled by molecular switches. In particular, the mirror-image dependence on photoactivated azo molecules, undergoing trans-to-cis isomerization, shows chiral recognition effects on the inherent flexibility and conformational diversity of DNA G4s having distinct handedness (right- and left-handed). Through a detailed experimental and computational analysis, we bring compelling evidence on the binding mode of the photochromes on G4s, and we rationalize the origin of the chirality effect that is associated with the complexation event.
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Affiliation(s)
- Marta Dudek
- Advanced
Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Marco Deiana
- Department
of Medical Biochemistry and Biophysics, Umeå University, 90187 Umeå, Sweden
| | - Kinga Szkaradek
- Theoretical
Photochemistry and Photophysics Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Mikołaj J. Janicki
- Theoretical
Photochemistry and Photophysics Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Ziemowit Pokładek
- Advanced
Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Robert W. Góra
- Theoretical
Photochemistry and Photophysics Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Katarzyna Matczyszyn
- Advanced
Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
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