1
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Laigre E, Bonnet H, Beauvineau C, Lavergne T, Verga D, Defrancq E, Dejeu J, Teulade-Fichou MP. Systematic Evaluation of Benchmark G4 Probes and G4 Clinical Drugs using three Biophysical Methods: A Guideline to Evaluate Rapidly G4-Binding Affinity. Chembiochem 2024:e202400210. [PMID: 38619969 DOI: 10.1002/cbic.202400210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/17/2024]
Abstract
G-quadruplex DNA structures (G4) are proven to interfere with most genetic and epigenetic processes. Small molecules binding these structures (G4 ligands) are invaluable tools to probe G4-biology and address G4-druggability in various diseases (cancer, viral infections). However, the large number of reported G4 ligands (>1000) could lead to confusion while selecting one for a given application. Herein we conducted a systematic affinity ranking of 11 popular G4 ligands vs 5 classical G4 sequences using FRET-melting, G4-FID assays and SPR. Interestingly SPR data globally align with the rankings obtained from the two semi-quantitative assays despite discrepancies due to limits and characteristics of each assay. In the whole, PhenDC3 emerges as the most potent binder irrespective of the G4 sequence. Immediately below PDS, PDC-360A, BRACO19, TMPyP4 and RHPS4 feature strong to medium binding again with poor G4 topology discrimination. More strikingly, the G4 drugs Quarfloxin, CX5461 and c-PDS exhibit weak affinity with all G4s studied. Finally, NMM and Cu-ttpy showed heterogeneous behaviors due, in part, to their physicochemical particularities poorly compatible with screening conditions. The remarkable properties of PhenDC3 led us to propose its use for benchmarking FRET-melting and G4-FID assays for rapid G4-affinity evaluation of newly developed ligands.
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Affiliation(s)
- E Laigre
- CNRS UMR9187, INSERM U1196, Institut Curie, PSL Research University, F-91405, Orsay, France
- CNRS UMR9187, INSERM U1196, Université Paris-Saclay, F-91405, Orsay, France
| | - H Bonnet
- DCM, UMR 5250, Univ. Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
| | - C Beauvineau
- CNRS UMR9187, INSERM U1196, Institut Curie, PSL Research University, F-91405, Orsay, France
- CNRS UMR9187, INSERM U1196, Université Paris-Saclay, F-91405, Orsay, France
| | - T Lavergne
- DCM, UMR 5250, Univ. Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
| | - D Verga
- CNRS UMR9187, INSERM U1196, Institut Curie, PSL Research University, F-91405, Orsay, France
- CNRS UMR9187, INSERM U1196, Université Paris-Saclay, F-91405, Orsay, France
| | - E Defrancq
- DCM, UMR 5250, Univ. Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
| | - J Dejeu
- DCM, UMR 5250, Univ. Grenoble Alpes, CNRS, 570 Rue de la Chimie, 38000, Grenoble, France
- SUPMICROTECH, Université Franche-Comté, CNRS, Institut FEMTO-ST, 25000, Besançon, France
| | - M-P Teulade-Fichou
- CNRS UMR9187, INSERM U1196, Institut Curie, PSL Research University, F-91405, Orsay, France
- CNRS UMR9187, INSERM U1196, Université Paris-Saclay, F-91405, Orsay, France
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2
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Gillard M, Bonnet H, Lartia R, Yacoub H, Dejeu J, Defrancq E, Elias B. Luminescent Ruthenium(II) Complexes Used for the Detection of 8-Oxoguanine in the Human Telomeric Sequence. Bioconjug Chem 2023; 34:414-421. [PMID: 36689988 DOI: 10.1021/acs.bioconjchem.2c00578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Detecting cancer at the early stage of the disease is crucial to keep the best chance for successful treatment. The recent development of genomic screening, a methodology that is addressed to asymptomatic patients presumably at risk of carcinogenesis, has stimulated the quest for new tools able to signal the level of risk. Carcinogenesis has been associated to chronic oxidative stress exceeding the antioxidant defenses and leading to critical genome alteration levels. The telomeric regions are presumably the most exposed to oxidative stress due to their high concentration of guanine (i.e., the easiest oxidizable nucleic base). Accumulation of 8-oxoguanine in telomeres, thus oxidative lesions, was reportedly associated with telomeric crisis and carcinogenesis. In this study, we report on the capacity of Ru(II) polyazaaromatic complexes to photoprobe 8-oxoguanine into the human telomeric sequence with the view of developing new tools for cancer risk screening.
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Affiliation(s)
- Martin Gillard
- Molecular Chemistry, Materials and Catalysis (MOST), Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Place Louis Pasteur 1, bte L4.01.02, B-1348 Louvain-la-Neuve, Belgium
| | - Hugues Bonnet
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Rémy Lartia
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Hiba Yacoub
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Jérôme Dejeu
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France.,CNRS UMR-6174, FEMTO-ST Institute, Université de Bourgogne Franche-Comté, F-25000 Besançon, France
| | - Eric Defrancq
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble-Alpes (UGA), CS 40700, 38058 Grenoble, France
| | - Benjamin Elias
- Molecular Chemistry, Materials and Catalysis (MOST), Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Place Louis Pasteur 1, bte L4.01.02, B-1348 Louvain-la-Neuve, Belgium
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3
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Berthiol F, Boissieras J, Bonnet H, Pierrot M, Philouze C, Poisson JF, Granzhan A, Dejeu J, Defrancq E. Novel Synthesis of IMC-48 and Affinity Evaluation with Different i-Motif DNA Sequences. Molecules 2023; 28:molecules28020682. [PMID: 36677740 PMCID: PMC9865601 DOI: 10.3390/molecules28020682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/12/2023] Open
Abstract
During the last decade, the evidence for the biological relevance of i-motif DNA (i-DNA) has been accumulated. However, relatively few molecules were reported to interact with i-DNA, and a controversy concerning their binding mode, affinity, and selectivity persists in the literature. In this context, the cholestane derivative IMC-48 has been reported to modulate bcl-2 gene expression by stabilizing an i-motif structure in its promoter. In the present contribution, we report on a novel, more straightforward, synthesis of IMC-48 requiring fewer steps compared to the previous approach. Furthermore, the interaction of IMC-48 with four different i-motif DNA sequences was thoroughly investigated by bio-layer interferometry (BLI) and circular dichroism (CD) spectroscopy. Surprisingly, our results show that IMC-48 is a very weak ligand of i-DNA as no quantifiable interaction or significant stabilization of i-motif structures could be observed, stimulating a quest for an alternative mechanism of its biological activity.
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Affiliation(s)
- Florian Berthiol
- Department of Molecular Chemistry (DCM), CNRS, UMR 5250, Université Grenoble-Alpes, 38000 Grenoble, France
- Correspondence: (F.B.); (J.D.); (E.D.)
| | - Joseph Boissieras
- CNRS UMR9187, INSERM U1196, Institut Curie, PSL Research University, F-91405 Orsay, France
- CNRS UMR9187, INSERM U1196, Université Paris Saclay, F-91405 Orsay, France
| | - Hugues Bonnet
- Department of Molecular Chemistry (DCM), CNRS, UMR 5250, Université Grenoble-Alpes, 38000 Grenoble, France
| | - Marie Pierrot
- Department of Molecular Chemistry (DCM), CNRS, UMR 5250, Université Grenoble-Alpes, 38000 Grenoble, France
| | - Christian Philouze
- Department of Molecular Chemistry (DCM), CNRS, UMR 5250, Université Grenoble-Alpes, 38000 Grenoble, France
| | - Jean-François Poisson
- Department of Molecular Chemistry (DCM), CNRS, UMR 5250, Université Grenoble-Alpes, 38000 Grenoble, France
| | - Anton Granzhan
- CNRS UMR9187, INSERM U1196, Institut Curie, PSL Research University, F-91405 Orsay, France
- CNRS UMR9187, INSERM U1196, Université Paris Saclay, F-91405 Orsay, France
| | - Jérôme Dejeu
- Department of Molecular Chemistry (DCM), CNRS, UMR 5250, Université Grenoble-Alpes, 38000 Grenoble, France
- FEMTO-ST Institute, CNRS UMR-6174, Université de Bourgogne Franche-Comté, F-25000 Besançon, France
- Correspondence: (F.B.); (J.D.); (E.D.)
| | - Eric Defrancq
- Department of Molecular Chemistry (DCM), CNRS, UMR 5250, Université Grenoble-Alpes, 38000 Grenoble, France
- Correspondence: (F.B.); (J.D.); (E.D.)
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4
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Weynand J, Episkopou H, Le Berre G, Gillard M, Dejeu J, Decottignies A, Defrancq E, Elias B. Photo-induced telomeric DNA damage in human cancer cells. RSC Chem Biol 2022; 3:1375-1379. [PMID: 36544575 PMCID: PMC9709782 DOI: 10.1039/d2cb00192f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/04/2022] [Indexed: 12/05/2022] Open
Abstract
Herein we report on the study of novel dinuclear ruthenium(ii) complexes designed to target and to photo-react with G-quadruplex telomeric DNA. Upon irradiation, complexes efficiently generate guanine radical cation sites as photo-oxidation products. The compounds also display efficient cell penetration with localization to the nucleus and show strong photocytotoxicity toward osteosarcoma cells. Thanks to a microscopic-based telomere dysfunction assay, which allows the direct visualization of DNA damage in cells, we brought the first evidence of forming photo-oxidative damage at telomeres in cellulo. This emphasizes interesting prospects for the development of future cancer phototherapies.
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Affiliation(s)
- Justin Weynand
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST)Place Louis Pasteur 1, bte L4.01.02B-1348 Louvain-la-NeuveBelgium,Université Grenoble-Alpes (UGA), Département de Chimie Moléculaire, UMR CNRS 5250, CS 4070038058 GrenobleFrance
| | - Harikleia Episkopou
- Université catholique de Louvain (UCLouvain), Genetic and Epigenetic Alterations of Genomes, de Duve InstituteAvenue Hippocrate 751200 BrusselsBelgium
| | - Gabriel Le Berre
- Université catholique de Louvain (UCLouvain), Genetic and Epigenetic Alterations of Genomes, de Duve InstituteAvenue Hippocrate 751200 BrusselsBelgium
| | - Martin Gillard
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST)Place Louis Pasteur 1, bte L4.01.02B-1348 Louvain-la-NeuveBelgium
| | - Jérôme Dejeu
- Université Grenoble-Alpes (UGA), Département de Chimie Moléculaire, UMR CNRS 5250, CS 4070038058 GrenobleFrance
| | - Anabelle Decottignies
- Université catholique de Louvain (UCLouvain), Genetic and Epigenetic Alterations of Genomes, de Duve InstituteAvenue Hippocrate 751200 BrusselsBelgium
| | - Eric Defrancq
- Université Grenoble-Alpes (UGA), Département de Chimie Moléculaire, UMR CNRS 5250, CS 4070038058 GrenobleFrance
| | - Benjamin Elias
- Université catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST)Place Louis Pasteur 1, bte L4.01.02B-1348 Louvain-la-NeuveBelgium
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5
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Gillard M, Piraux G, Daenen M, Abraham M, Troian‐Gautier L, Bar L, Bonnet H, Loiseau F, Jamet H, Dejeu J, Defrancq E, Elias B. Photo‐Oxidizing Ruthenium(II) Complexes with Enhanced Visible‐Light Absorption and G‐quadruplex DNA Binding Abilities. Chemistry 2022; 28:e202202251. [DOI: 10.1002/chem.202202251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Martin Gillard
- Université catholique de Louvain (UCLouvain) Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Guillaume Piraux
- Université catholique de Louvain (UCLouvain) Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Martin Daenen
- Université catholique de Louvain (UCLouvain) Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Michaël Abraham
- Université catholique de Louvain (UCLouvain) Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Ludovic Troian‐Gautier
- Université catholique de Louvain (UCLouvain) Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Laure Bar
- Université Grenoble Alpes (UGA) Département de Chimie Moléculaire, UMR CNRS 5250 CS 40700 - 38058 Grenoble France)
| | - Hugues Bonnet
- Université Grenoble Alpes (UGA) Département de Chimie Moléculaire, UMR CNRS 5250 CS 40700 - 38058 Grenoble France)
| | - Frédérique Loiseau
- Université Grenoble Alpes (UGA) Département de Chimie Moléculaire, UMR CNRS 5250 CS 40700 - 38058 Grenoble France)
| | - Hélène Jamet
- Université Grenoble Alpes (UGA) Département de Chimie Moléculaire, UMR CNRS 5250 CS 40700 - 38058 Grenoble France)
| | - Jérôme Dejeu
- Université Grenoble Alpes (UGA) Département de Chimie Moléculaire, UMR CNRS 5250 CS 40700 - 38058 Grenoble France)
| | - Eric Defrancq
- Université Grenoble Alpes (UGA) Département de Chimie Moléculaire, UMR CNRS 5250 CS 40700 - 38058 Grenoble France)
| | - Benjamin Elias
- Université catholique de Louvain (UCLouvain) Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
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6
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Bonnet H, Morel M, Devaux A, Boissieras J, Granzhan A, Elias B, Lavergne T, Dejeu J, Defrancq E. Assessment of presumed small-molecule ligands of telomeric i-DNA by biolayer interferometry (BLI). Chem Commun (Camb) 2022; 58:5116-5119. [PMID: 35380138 DOI: 10.1039/d2cc00836j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biolayer interferometry (BLI) and circular dichroism (CD) spectroscopy were used to investigate the interaction between previously reported i-motif DNA (i-DNA) ligands and folded or unfolded i-DNA in acidic (pH 5.5) and near-neutral (pH 6.5) conditions. We observed that although several ligands, in particular macrocyclic bis-acridine (BisA) and pyridostatin (PDS), showed good affinities for the telomeric i-motif forming sequence, none of the ligands displayed selective interactions with the i-DNA structure nor was able to promote its formation.
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Affiliation(s)
- Hugues Bonnet
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700-38058 Grenoble, France.
| | - Maéva Morel
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700-38058 Grenoble, France.
| | - Alexandre Devaux
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700-38058 Grenoble, France.
| | - Joseph Boissieras
- Institut Curie, CNRS UMR 9187, INSERM U1196, Université Paris Saclay, 91405 Orsay, France
| | - Anton Granzhan
- Institut Curie, CNRS UMR 9187, INSERM U1196, Université Paris Saclay, 91405 Orsay, France
| | - Benjamin Elias
- Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Université catholique de Louvain (UCLouvain), Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Thomas Lavergne
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700-38058 Grenoble, France.
| | - Jérôme Dejeu
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700-38058 Grenoble, France. .,FEMTO-ST Institute, CNRS UMR-6174, Université de Bourgogne Franche-Comté, F-25000 Besançon, France
| | - Eric Defrancq
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700-38058 Grenoble, France.
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7
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Pons M, Perenon M, Bonnet H, Gillon E, Vallée C, Coche-Guérente L, Defrancq E, Spinelli N, Van der Heyden A, Dejeu J. Conformational transition in SPR experiments: impact of spacer length, immobilization mode and aptamer density on signal sign and amplitude. Analyst 2022; 147:4197-4205. [DOI: 10.1039/d2an00824f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The spacer length and immobilization mode impact the Surface plasmon resonance (SPR) signal and affinity measured for small target/aptamer recognition. The signal could be positive, negative or null explained by refractive index increment deviation.
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Affiliation(s)
- Marina Pons
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Marine Perenon
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Hugues Bonnet
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Emilie Gillon
- Univ. Grenoble Alpes, CERMAV-CNRS, 601 rue de la chimie, F-38610 Gières, France
| | - Celio Vallée
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | | | - Eric Defrancq
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Nicolas Spinelli
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | | | - Jérôme Dejeu
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
- FEMTO-ST Institute, CNRS UMR-6174, Université de Bourgogne Franche-Comté, F-25000 Besançon, France
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8
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Pipier A, Devaux A, Lavergne T, Adrait A, Couté Y, Britton S, Calsou P, Riou JF, Defrancq E, Gomez D. Constrained G4 structures unveil topology specificity of known and new G4 binding proteins. Sci Rep 2021; 11:13469. [PMID: 34188089 PMCID: PMC8241873 DOI: 10.1038/s41598-021-92806-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/11/2021] [Indexed: 12/20/2022] Open
Abstract
G-quadruplexes (G4) are non-canonical secondary structures consisting in stacked tetrads of hydrogen-bonded guanines bases. An essential feature of G4 is their intrinsic polymorphic nature, which is characterized by the equilibrium between several conformations (also called topologies) and the presence of different types of loops with variable lengths. In cells, G4 functions rely on protein or enzymatic factors that recognize and promote or resolve these structures. In order to characterize new G4-dependent mechanisms, extensive researches aimed at identifying new G4 binding proteins. Using G-rich single-stranded oligonucleotides that adopt non-controlled G4 conformations, a large number of G4-binding proteins have been identified in vitro, but their specificity towards G4 topology remained unknown. Constrained G4 structures are biomolecular objects based on the use of a rigid cyclic peptide scaffold as a template for directing the intramolecular assembly of the anchored oligonucleotides into a single and stabilized G4 topology. Here, using various constrained RNA or DNA G4 as baits in human cell extracts, we establish the topology preference of several well-known G4-interacting factors. Moreover, we identify new G4-interacting proteins such as the NELF complex involved in the RNA-Pol II pausing mechanism, and we show that it impacts the clastogenic effect of the G4-ligand pyridostatin.
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Affiliation(s)
- A Pipier
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
- Equipe Labellisée Ligue Contre Le Cancer 2018, Toulouse, France
| | - A Devaux
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble Alpes, 38058, Grenoble, France
| | - T Lavergne
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble Alpes, 38058, Grenoble, France
| | - A Adrait
- CEA, INSERM, IRIG, BGE, Université Grenoble Alpes, 38000, Grenoble, France
| | - Y Couté
- CEA, INSERM, IRIG, BGE, Université Grenoble Alpes, 38000, Grenoble, France
| | - S Britton
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
- Equipe Labellisée Ligue Contre Le Cancer 2018, Toulouse, France
| | - P Calsou
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
- Equipe Labellisée Ligue Contre Le Cancer 2018, Toulouse, France
| | - J F Riou
- Structure et Instabilité des Génomes, Muséum National d'Histoire Naturelle, CNRS, INSERM, CP 26, 75005, Paris, France
| | - E Defrancq
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble Alpes, 38058, Grenoble, France
| | - D Gomez
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.
- Equipe Labellisée Ligue Contre Le Cancer 2018, Toulouse, France.
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9
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Bossaert M, Pipier A, Riou JF, Noirot C, Nguyên LT, Serre RF, Bouchez O, Defrancq E, Calsou P, Britton S, Gomez D. Transcription-associated topoisomerase 2α (TOP2A) activity is a major effector of cytotoxicity induced by G-quadruplex ligands. eLife 2021; 10:65184. [PMID: 34180392 PMCID: PMC8279764 DOI: 10.7554/elife.65184] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 06/16/2021] [Indexed: 12/11/2022] Open
Abstract
G-quadruplexes (G4) are non-canonical DNA structures found in the genome of most species including human. Small molecules stabilizing these structures, called G4 ligands, have been identified and, for some of them, shown to induce cytotoxic DNA double-strand breaks. Through the use of an unbiased genetic approach, we identify here topoisomerase 2α (TOP2A) as a major effector of cytotoxicity induced by two clastogenic G4 ligands, pyridostatin and CX-5461, the latter molecule currently undergoing phase I/II clinical trials in oncology. We show that both TOP2 activity and transcription account for DNA break production following G4 ligand treatments. In contrast, clastogenic activity of these G4 ligands is countered by topoisomerase 1 (TOP1), which limits co-transcriptional G4 formation, and by factors promoting transcriptional elongation. Altogether our results support that clastogenic G4 ligands act as DNA structure-driven TOP2 poisons at transcribed regions bearing G4 structures.
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Affiliation(s)
- Madeleine Bossaert
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,Equipe Labellisée Ligue Contre le Cancer 2018, Toulouse, France
| | - Angélique Pipier
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,Equipe Labellisée Ligue Contre le Cancer 2018, Toulouse, France
| | - Jean-Francois Riou
- Structure et Instabilité des Génomes, Muséum National d'Histoire Naturelle, CNRS, INSERM, Paris, France
| | - Céline Noirot
- INRAE, UR 875, Unité de Mathématique et Informatique Appliquées, Genotoul Bioinfo, Castanet-Tolosan, France
| | - Linh-Trang Nguyên
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | | | - Olivier Bouchez
- INRAE, US 1426, GeT-PlaGe, Genotoul, Castanet-Tolosan, France
| | - Eric Defrancq
- Département de Chimie Moléculaire, UMR CNRS 5250, Université Grenoble Alpes, Grenoble, France
| | - Patrick Calsou
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,Equipe Labellisée Ligue Contre le Cancer 2018, Toulouse, France
| | - Sébastien Britton
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,Equipe Labellisée Ligue Contre le Cancer 2018, Toulouse, France
| | - Dennis Gomez
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,Equipe Labellisée Ligue Contre le Cancer 2018, Toulouse, France
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10
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Bonnet H, Coche-Guérente L, Defrancq E, Spinelli N, Van der Heyden A, Dejeu J. Negative SPR Signals during Low Molecular Weight Analyte Recognition. Anal Chem 2021; 93:4134-4140. [PMID: 33577288 DOI: 10.1021/acs.analchem.1c00071] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Surface plasmon resonance (SPR) is a powerful technique for studying biomolecular interactions mainly due to its sensitivity and real-time and label free advantages. While SPR signals are usually positive, only a few studies have reported sensorgrams with negative signals. The aim of the present work is to investigate and to explain the observation of negative SPR signals with the hypothesis that it reflects major changes in ligand conformation resulting from target binding. We demonstrated that these negative unconventional signals were due to the negative complex (ligand/analyte) refractive index increment (RII) deviation from the sum of the RII of the individual entities which counterbalanced the theoretical increase of the signal triggered by the target recognition and the ligand folding. We also found that the conformation change of biomolecules can induce a negative or a positive complex RII deviation depending on its sequence and immobilization mode.
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Affiliation(s)
- H Bonnet
- Université Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - L Coche-Guérente
- Université Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - E Defrancq
- Université Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - N Spinelli
- Université Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - A Van der Heyden
- Université Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - J Dejeu
- Université Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
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11
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Gillard M, Weynand J, Bonnet H, Loiseau F, Decottignies A, Dejeu J, Defrancq E, Elias B. Flexible Ru
II
Schiff Base Complexes: G‐Quadruplex DNA Binding and Photo‐Induced Cancer Cell Death. Chemistry 2020; 26:13849-13860. [DOI: 10.1002/chem.202001409] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/28/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Martin Gillard
- Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Justin Weynand
- Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
- Département de Chimie Moléculaire UMR CNRS 5250 Université Grenoble Alpes (UGA) CS 40700-38058 Grenoble France
| | - Hugues Bonnet
- Département de Chimie Moléculaire UMR CNRS 5250 Université Grenoble Alpes (UGA) CS 40700-38058 Grenoble France
| | - Frédérique Loiseau
- Département de Chimie Moléculaire UMR CNRS 5250 Université Grenoble Alpes (UGA) CS 40700-38058 Grenoble France
| | - Anabelle Decottignies
- Université catholique de Louvain (UCLouvain) de Duve Institute Avenue Hippocrate 75 1200 Brussels Belgium
| | - Jérôme Dejeu
- Département de Chimie Moléculaire UMR CNRS 5250 Université Grenoble Alpes (UGA) CS 40700-38058 Grenoble France
| | - Eric Defrancq
- Département de Chimie Moléculaire UMR CNRS 5250 Université Grenoble Alpes (UGA) CS 40700-38058 Grenoble France
| | - Benjamin Elias
- Institut de la Matière Condensée et des Nanosciences (IMCN) Molecular Chemistry, Materials and Catalysis (MOST) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
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12
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Vignon A, Flaget A, Michelas M, Djeghdir M, Defrancq E, Coche-Guerente L, Spinelli N, Van der Heyden A, Dejeu J. Direct Detection of Low-Molecular-Weight Compounds in 2D and 3D Aptasensors by Biolayer Interferometry. ACS Sens 2020; 5:2326-2330. [PMID: 32786219 DOI: 10.1021/acssensors.0c00925] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The direct biolayer interferometry (BLI) measurement of low-molecular-weight (LMW) analytes (<200 Da) still represents a challenge, in particular, when low receptor densities are used. BLI is a powerful optical technique for the label-free, real-time characterization and quantification of biomolecular interactions at interfaces. We demonstrate herein that the quantification of biomolecular recognition is possible by BLI using either 2D-like or 3D platforms for aptamer ligand immobilization. The influence of the aptamer density on the interaction was evaluated and compared for the two sensor architectures. Despite the LMW of the analyte, BLI monitoring led to signals that are exploitable for affinity and kinetic studies, even at low aptamer density. We demonstrate that the immobilization format as well as the aptamer density has a crucial influence on the determination of the recognition parameters.
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Affiliation(s)
- Anthony Vignon
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Arthur Flaget
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Maxime Michelas
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Mehdi Djeghdir
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | - Eric Defrancq
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | | | - Nicolas Spinelli
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
| | | | - Jérôme Dejeu
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France
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13
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Perenon M, Bonnet H, Lavergne T, Dejeu J, Defrancq E. Surface plasmon resonance study of the interaction of N-methyl mesoporphyrin IX with G-quadruplex DNA. Phys Chem Chem Phys 2020; 22:4158-4164. [PMID: 32039427 DOI: 10.1039/c9cp06321h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Surface plasmon resonance (SPR) was used to investigate the interaction between N-methyl mesoporphyrin IX (NMM) and different G-quadruplex (G4) topologies. The study was associated with circular dichroism analysis (CD) to assess the topology of the G4s when they interacted with NMM. We demonstrate the high selectivity of NMM for the parallel G4 structure with a dissociation constant at least ten times lower than those of other G4 topologies. We also confirm the ability of NMM to shift the G4 conformation from both the hybrid and antiparallel topologies toward the parallel structure.
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Affiliation(s)
- M Perenon
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France.
| | - H Bonnet
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France.
| | - T Lavergne
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France.
| | - J Dejeu
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France.
| | - E Defrancq
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, F-38000 Grenoble, France.
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14
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Weynand J, Moreno-Betancourt A, Loiseau F, Berthet N, Defrancq E, Elias B. Redox-Active Bis-Cyclometalated Iridium(III) Complex as a DNA Photo-Cleaving Agent. Inorg Chem 2020; 59:2426-2433. [PMID: 31977196 DOI: 10.1021/acs.inorgchem.9b03312] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of new photoactive metal complexes that can trigger oxidative damages to the genetic material is of great interest. In the present paper, we describe the detailed study of a highly photo-oxidant iridium(III) complex that triggers photoinduced electron transfer (PET) with purine DNA bases. The PET has been studied by luminescence and laser flash photolysis experiments. From plasmid DNA agarose gel electrophoresis experiments, we demonstrated the high ability of the iridium complex to induce strand breaks upon light irradiation. Reactive oxygen species (ROS)-specific scavengers and stabilizers were employed to identify that the photocleavage process, the results of which infer singlet oxygen and hydrogen peroxide as the predominant species. To the best of our knowledge, the present work represents one of the few study for highly photo-oxidant bis-cyclometalated iridium(III) complex toward DNA.
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Affiliation(s)
- Justin Weynand
- Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis Division (MOST) , Université catholique de Louvain (UCLouvain) , Place Louis Pasteur 1, bte L4.01.02 , B-1348 Louvain-la-Neuve , Belgium.,Département de Chimie Moléculaire, UMR CNRS 5250 , Université Grenoble Alpes , CS 40700, 38058 Grenoble , France
| | - Angélica Moreno-Betancourt
- Département de Chimie Moléculaire, UMR CNRS 5250 , Université Grenoble Alpes , CS 40700, 38058 Grenoble , France
| | - Frédérique Loiseau
- Département de Chimie Moléculaire, UMR CNRS 5250 , Université Grenoble Alpes , CS 40700, 38058 Grenoble , France
| | - Nathalie Berthet
- Département de Chimie Moléculaire, UMR CNRS 5250 , Université Grenoble Alpes , CS 40700, 38058 Grenoble , France
| | - Eric Defrancq
- Département de Chimie Moléculaire, UMR CNRS 5250 , Université Grenoble Alpes , CS 40700, 38058 Grenoble , France
| | - Benjamin Elias
- Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis Division (MOST) , Université catholique de Louvain (UCLouvain) , Place Louis Pasteur 1, bte L4.01.02 , B-1348 Louvain-la-Neuve , Belgium
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15
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Devaux A, Bonnat L, Lavergne T, Defrancq E. Access to a stabilized i-motif DNA structure through four successive ligation reactions on a cyclopeptide scaffold. Org Biomol Chem 2020; 18:6394-6406. [DOI: 10.1039/d0ob01311k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Four successive chemical ligations were used for the assembly of a sophisticated biomolecular system allowing the formation of a stabilized i-motif DNA at pH 7.
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Affiliation(s)
- Alexandre Devaux
- Univ. Grenoble Alpes
- Département de Chimie Moléculaire
- CNRS
- Grenoble 38000
- France
| | - Laureen Bonnat
- Univ. Grenoble Alpes
- Département de Chimie Moléculaire
- CNRS
- Grenoble 38000
- France
| | - Thomas Lavergne
- Univ. Grenoble Alpes
- Département de Chimie Moléculaire
- CNRS
- Grenoble 38000
- France
| | - Eric Defrancq
- Univ. Grenoble Alpes
- Département de Chimie Moléculaire
- CNRS
- Grenoble 38000
- France
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16
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Lartia R, Vallée C, Defrancq E. Post-synthetic transamination at position N4 of cytosine in oligonucleotides assembled with routinely used phosphoramidites. Org Biomol Chem 2020; 18:9632-9638. [DOI: 10.1039/d0ob02059a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel strategy for the efficient and cheap post-modification of oligonucleotides at internal position.
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Affiliation(s)
- Rémy Lartia
- Univ. Grenoble Alpes
- CNRS
- DCM UMR5250
- F-38000 Grenoble
- France
| | - Coelio Vallée
- Univ. Grenoble Alpes
- CNRS
- DCM UMR5250
- F-38000 Grenoble
- France
| | - Eric Defrancq
- Univ. Grenoble Alpes
- CNRS
- DCM UMR5250
- F-38000 Grenoble
- France
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17
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Weynand J, Bonnet H, Loiseau F, Ravanat J, Dejeu J, Defrancq E, Elias B. Frontispiece: Targeting G‐Rich DNA Structures with Photoreactive Bis‐Cyclometallated Iridium(III) Complexes. Chemistry 2019. [DOI: 10.1002/chem.201985563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Justin Weynand
- Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST)Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
- CNRS, DCM UMR5250Université Grenoble Alpes 38000 Grenoble France
| | - Hughes Bonnet
- CNRS, DCM UMR5250Université Grenoble Alpes 38000 Grenoble France
| | | | - Jean‐Luc Ravanat
- CEA, CNRS, INAC-SyMMESUniversité Grenoble Alpes 17 rue des martyrs 38054 Grenoble CEDEX 9 France
| | - Jérôme Dejeu
- CNRS, DCM UMR5250Université Grenoble Alpes 38000 Grenoble France
| | - Eric Defrancq
- CNRS, DCM UMR5250Université Grenoble Alpes 38000 Grenoble France
| | - Benjamin Elias
- Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST)Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
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18
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Bonnat L, Dautriche M, Saidi T, Revol-Cavalier J, Dejeu J, Defrancq E, Lavergne T. Scaffold stabilization of a G-triplex and study of its interactions with G-quadruplex targeting ligands. Org Biomol Chem 2019; 17:8726-8736. [PMID: 31549116 DOI: 10.1039/c9ob01537j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
G-triplex nucleic acid structures (G3) have been conjectured to form in vivo but little is known about their physiological functions. The identification of ligands capable of specific binding to G3 structures is therefore highly appealing but remains elusive. Here we report on the assembly of a DNA conjugate which folds into a stable G3 structure. The structural mimic was used to probe the interactions between a G3 ligand and first-in-class G4 ligands, revealing signification binding promiscuity.
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Affiliation(s)
- Laureen Bonnat
- Univ. Grenoble Alpes, Département de Chimie Moléculaire, CNRS, 570 rue de la chimie, CS 40700, Grenoble 38000, France.
| | - Maelle Dautriche
- Univ. Grenoble Alpes, Département de Chimie Moléculaire, CNRS, 570 rue de la chimie, CS 40700, Grenoble 38000, France.
| | - Taous Saidi
- Univ. Grenoble Alpes, Département de Chimie Moléculaire, CNRS, 570 rue de la chimie, CS 40700, Grenoble 38000, France.
| | - Johana Revol-Cavalier
- Univ. Grenoble Alpes, Département de Chimie Moléculaire, CNRS, 570 rue de la chimie, CS 40700, Grenoble 38000, France.
| | - Jérôme Dejeu
- Univ. Grenoble Alpes, Département de Chimie Moléculaire, CNRS, 570 rue de la chimie, CS 40700, Grenoble 38000, France.
| | - Eric Defrancq
- Univ. Grenoble Alpes, Département de Chimie Moléculaire, CNRS, 570 rue de la chimie, CS 40700, Grenoble 38000, France.
| | - Thomas Lavergne
- Univ. Grenoble Alpes, Département de Chimie Moléculaire, CNRS, 570 rue de la chimie, CS 40700, Grenoble 38000, France.
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19
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Weynand J, Bonnet H, Loiseau F, Ravanat JL, Dejeu J, Defrancq E, Elias B. Targeting G-Rich DNA Structures with Photoreactive Bis-Cyclometallated Iridium(III) Complexes. Chemistry 2019; 25:12730-12739. [PMID: 31290208 DOI: 10.1002/chem.201902183] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 07/02/2019] [Indexed: 01/19/2023]
Abstract
The synthesis and characterisation of three novel iridium(III) bis-cyclometallated complexes is reported. Their photophysics have been fully characterised by classical methods and revealed charge-transfer (CT) and ligand-centred (LC) transitions. Their ability to selectively interact with G-quadruplex telomeric DNA over duplex DNA has been studied by circular dichroism (CD), bio-layer interferometry (BLI) and surface plasmon resonance (SPR) analyses. Interestingly, one of the complexes was able to promote photoinduced electron transfer (PET) with the guanine DNA base, which in turn led to oxidative damage (such as the formation of 8-oxoguanine) to the telomeric sequence. To the best of our knowledge, this is the first study of highly photo-oxidising bis-cyclometallated iridium(III) complexes with G-quadruplex telomeric DNA.
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Affiliation(s)
- Justin Weynand
- Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Université catholique de Louvain (UCLouvain), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium.,CNRS, DCM UMR5250, Université Grenoble Alpes, 38000, Grenoble, France
| | - Hughes Bonnet
- CNRS, DCM UMR5250, Université Grenoble Alpes, 38000, Grenoble, France
| | | | - Jean-Luc Ravanat
- CEA, CNRS, INAC-SyMMES, Université Grenoble Alpes, 17 rue des martyrs, 38054, Grenoble CEDEX 9, France
| | - Jérôme Dejeu
- CNRS, DCM UMR5250, Université Grenoble Alpes, 38000, Grenoble, France
| | - Eric Defrancq
- CNRS, DCM UMR5250, Université Grenoble Alpes, 38000, Grenoble, France
| | - Benjamin Elias
- Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Université catholique de Louvain (UCLouvain), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
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20
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Gillard M, Laramée-Milette B, Deraedt Q, Hanan GS, Loiseau F, Dejeu J, Defrancq E, Elias B, Marcélis L. Photodetection of DNA mismatches by dissymmetric Ru(ii) acridine based complexes. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00133f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Favored radiative deactivation processes in dissymmetric Ru(ii) complexes enable photodetection of DNA mismatches.
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Affiliation(s)
- Martin Gillard
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
| | | | - Quentin Deraedt
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
| | - Garry S. Hanan
- Departement de Chimie
- Université de Montréal
- Montréal
- Canada
| | - Fredérique Loiseau
- Département de Chimie Moléculaire
- Université Grenoble-Alpes (UGA)
- 38058 Grenoble
- France
| | - Jérôme Dejeu
- Département de Chimie Moléculaire
- Université Grenoble-Alpes (UGA)
- 38058 Grenoble
- France
| | - Eric Defrancq
- Département de Chimie Moléculaire
- Université Grenoble-Alpes (UGA)
- 38058 Grenoble
- France
| | - Benjamin Elias
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
| | - Lionel Marcélis
- Institute of Condensed Matter and Nanosciences (IMCN)
- Molecular Chemistry
- Materials and Catalysis (MOST)
- Université catholique de Louvain (UCLouvain)
- B-1348 Louvain-la-Neuve
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21
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Weynand J, Diman A, Abraham M, Marcélis L, Jamet H, Decottignies A, Dejeu J, Defrancq E, Elias B. Cover Feature: Towards the Development of Photo‐Reactive Ruthenium(II) Complexes Targeting Telomeric G‐Quadruplex DNA (Chem. Eur. J. 72/2018). Chemistry 2018. [DOI: 10.1002/chem.201805718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Justin Weynand
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Aurélie Diman
- Université catholique de Louvain (UCLouvain) de Duve Institute Avenue Hippocrate 75 1200 Brussels Belgium
| | - Michaël Abraham
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Lionel Marcélis
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Hélène Jamet
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Anabelle Decottignies
- Université catholique de Louvain (UCLouvain) de Duve Institute Avenue Hippocrate 75 1200 Brussels Belgium
| | - Jérôme Dejeu
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Eric Defrancq
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Benjamin Elias
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
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22
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Weynand J, Diman A, Abraham M, Marcélis L, Jamet H, Decottignies A, Dejeu J, Defrancq E, Elias B. Towards the Development of Photo‐Reactive Ruthenium(II) Complexes Targeting Telomeric G‐Quadruplex DNA. Chemistry 2018; 24:19216-19227. [DOI: 10.1002/chem.201804771] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/22/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Justin Weynand
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Aurélie Diman
- Université catholique de Louvain (UCLouvain) de Duve Institute Avenue Hippocrate 75 1200 Brussels Belgium
| | - Michaël Abraham
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Lionel Marcélis
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
| | - Hélène Jamet
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Anabelle Decottignies
- Université catholique de Louvain (UCLouvain) de Duve Institute Avenue Hippocrate 75 1200 Brussels Belgium
| | - Jérôme Dejeu
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Eric Defrancq
- Université Grenoble-Alpes (UGA)Département de Chimie Moléculaire, UMR CNRS 5250, CS 40700 38058 Grenoble France
| | - Benjamin Elias
- Université catholique de Louvain (UCLouvain)Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST) Place Louis Pasteur 1, bte L4.01.02 1348 Louvain-la-Neuve Belgium
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23
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Prado E, Bonnat L, Bonnet H, Lavergne T, Van der Heyden A, Pratviel G, Dejeu J, Defrancq E. Influence of the SPR Experimental Conditions on the G-Quadruplex DNA Recognition by Porphyrin Derivatives. Langmuir 2018; 34:13057-13064. [PMID: 30293430 DOI: 10.1021/acs.langmuir.8b02942] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Surface plasmon resonance (SPR) is a powerful technique to study the interactions of ligands with analytes and therefore a number of biosensor surfaces and injection methods have been developed so far. However, many experimental parameters can affect the interactions and consequently the affinity measurements. In particular, the interactions of positively charged analytes (often used for anionic nucleic acids targets) can be influenced by the sensing surfaces (e.g., negatively charged), leading to significant nonspecific interactions as well as regeneration problems. The aim of the present work is to investigate the effect of different parameters, including ionic strength, SPR biosensor (i.e., nature of the surfaces), and the injection method on the recognition of porphyrin G-quadruplex ligands. We demonstrate that the injection method does not influence the affinity whereas the ionic strength and the nature of the surface impact the recognition properties of the porphyrin for the G-quadruplex DNA. We also found that self-assembled monolayer coating surface presents many advantages in comparison with carboxymethylated dextran surface for SPR studies of G-quadruplex DNA/ligand interactions: (i) the electrostatic interaction with charged analytes is less important, (ii) its structure/composition is less sensitive to the ionic concentration and less prone to unspecific adsorption, (iii) it is easily homemade, and (iv) the cost is approximately 10 times cheaper.
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Affiliation(s)
- E Prado
- Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
| | - L Bonnat
- Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
| | - H Bonnet
- Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
| | - T Lavergne
- Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
| | | | - G Pratviel
- CNRS, Laboratoire de Chimie de Coordination , 205 route de Narbonne, BP44099 , F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT , Toulouse , France
| | - J Dejeu
- Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
| | - E Defrancq
- Univ. Grenoble Alpes, CNRS, DCM , 38000 Grenoble , France
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24
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Kajouj S, Marcelis L, Mattiuzzi A, Grassin A, Dufour D, Van Antwerpen P, Boturyn D, Defrancq E, Surin M, De Winter J, Gerbaux P, Jabin I, Moucheron C. Synthesis and photophysical studies of a multivalent photoreactive Ru II-calix[4]arene complex bearing RGD-containing cyclopentapeptides. Beilstein J Org Chem 2018; 14:1758-1768. [PMID: 30112081 PMCID: PMC6071717 DOI: 10.3762/bjoc.14.150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 06/21/2018] [Indexed: 01/09/2023] Open
Abstract
Photoactive ruthenium-based complexes are actively studied for their biological applications as potential theragnostic agents against cancer. One major issue of these inorganic complexes is to penetrate inside cells in order to fulfil their function, either sensing the internal cell environment or exert a photocytotoxic activity. The use of lipophilic ligands allows the corresponding ruthenium complexes to passively diffuse inside cells but limits their structural and photophysical properties. Moreover, this strategy does not provide any cell selectivity. This limitation is also faced by complexes anchored on cell-penetrating peptides. In order to provide a selective cell targeting, we developed a multivalent system composed of a photoreactive ruthenium(II) complex tethered to a calix[4]arene platform bearing multiple RGD-containing cyclopentapeptides. Extensive photophysical and photochemical characterizations of this Ru(II)–calixarene conjugate as well as the study of its photoreactivity in the presence of guanosine monophosphate have been achieved. The results show that the ruthenium complex should be able to perform efficiently its photoinduced cytotoxic activity, once incorporated into targeted cancer cells thanks to the multivalent platform.
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Affiliation(s)
- Sofia Kajouj
- Laboratoire de Chimie Organique et Photochimie, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/08, 1050 Bruxelles, Belgium
| | - Lionel Marcelis
- Laboratoire de Chimie Organique et Photochimie, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/08, 1050 Bruxelles, Belgium.,Engineering of Molecular NanoSystems, Ecole Polytechnique de Bruxelles, Université libre de Bruxelles (ULB), Avenue F.D. Roosevelt 50, CP165/64, B-1050 Brussels, Belgium
| | - Alice Mattiuzzi
- Laboratoire de Chimie Organique, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/06, 1050 Bruxelles, Belgium
| | - Adrien Grassin
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, CS 40700, 38058 Grenoble Cedex 09, France
| | - Damien Dufour
- Analytical Platform of the Faculty of Pharmacy, Université libre de Bruxelles, Boulevard du Triomphe, Campus de la Plaine, CP205/05, 1050 Bruxelles, Belgium
| | - Pierre Van Antwerpen
- Analytical Platform of the Faculty of Pharmacy, Université libre de Bruxelles, Boulevard du Triomphe, Campus de la Plaine, CP205/05, 1050 Bruxelles, Belgium
| | - Didier Boturyn
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, CS 40700, 38058 Grenoble Cedex 09, France
| | - Eric Defrancq
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, CS 40700, 38058 Grenoble Cedex 09, France
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers, University of Mons - UMONS, 20, Place du Parc, B-7000 Mons, Belgium
| | - Julien De Winter
- Organic synthesis and Mass Spectrometry Laboratory, University of Mons - UMONS, Place du Parc 23, B-7000 Mons, Belgium
| | - Pascal Gerbaux
- Organic synthesis and Mass Spectrometry Laboratory, University of Mons - UMONS, Place du Parc 23, B-7000 Mons, Belgium
| | - Ivan Jabin
- Laboratoire de Chimie Organique, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/06, 1050 Bruxelles, Belgium
| | - Cécile Moucheron
- Laboratoire de Chimie Organique et Photochimie, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/08, 1050 Bruxelles, Belgium
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25
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Probst N, Lartia R, Théry O, Alami M, Defrancq E, Messaoudi S. Efficient Buchwald-Hartwig-Migita Cross-Coupling for DNA Thioglycoconjugation. Chemistry 2018; 24:1795-1800. [PMID: 29205564 DOI: 10.1002/chem.201705371] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Indexed: 11/11/2022]
Abstract
An efficient method for the thioglycoconjugation of iodinated oligonucleotides by Buchwald-Hartwig-Migita cross-coupling under mild conditions is reported. The method enables divergent synthesis of many different functionalized thioglycosylated ODNs in good yields, without affecting the integrity of the other A, C, and G nucleobases.
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Affiliation(s)
- Nicolas Probst
- BioCIS, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France
| | - Rémy Lartia
- University Grenoble-Alpes, DCM, CS 40700, 38058, Grenoble, France
| | - Océane Théry
- University Grenoble-Alpes, DCM, CS 40700, 38058, Grenoble, France
| | - Mouâd Alami
- BioCIS, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France
| | - Eric Defrancq
- University Grenoble-Alpes, DCM, CS 40700, 38058, Grenoble, France
| | - Samir Messaoudi
- BioCIS, Univ. Paris-Sud, CNRS, University Paris-Saclay, 92290, Châtenay-Malabry, France
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26
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Piraux G, Bar L, Abraham M, Lavergne T, Jamet H, Dejeu J, Marcélis L, Defrancq E, Elias B. New Ruthenium-Based Probes for Selective G-Quadruplex Targeting. Chemistry 2017; 23:11872-11880. [PMID: 28609545 DOI: 10.1002/chem.201702076] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Indexed: 01/13/2023]
Abstract
Telomeric regions containing G-quadruplex (G4) structures play a pivotal role in the development of cancers. The development of specific binders for G4s is thus of great interest in order to gain a deeper understanding of the role of these structures, and to ultimately develop new anticancer drug candidates. For several years, RuII complexes have been studied as efficient probes for DNA. Interest in these complexes stems mainly from the tunability of their structures and properties, and the possibility of using light excitation as a tool to probe their environment or to selectively trigger their reaction with a biological target. Herein, we report on the synthesis and thorough study of new RuII complexes based on a novel dipyrazino[2,3-a:2',3'-h]phenazine ligand (dph), obtained through a Chichibabin-like reaction. Luminescence experiments, surface plasmon resonance (SPR), and computational studies have demonstrated that these complexes behave as selective probes for G-quadruplex structures.
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Affiliation(s)
- Guillaume Piraux
- Institut de la Matière Condensée et des Nanosciences (IMCN)-Molécules, Solides et Réactivité (MOST), Université catholique de Louvain, Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Laure Bar
- Université Grenoble-Alpes, UMR CNRS 5250, 38000, Grenoble, France
| | - Michaël Abraham
- Institut de la Matière Condensée et des Nanosciences (IMCN)-Molécules, Solides et Réactivité (MOST), Université catholique de Louvain, Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Thomas Lavergne
- Université Grenoble-Alpes, UMR CNRS 5250, 38000, Grenoble, France
| | - Hélène Jamet
- Université Grenoble-Alpes, UMR CNRS 5250, 38000, Grenoble, France
| | - Jérôme Dejeu
- Université Grenoble-Alpes, UMR CNRS 5250, 38000, Grenoble, France
| | - Lionel Marcélis
- Institut de la Matière Condensée et des Nanosciences (IMCN)-Molécules, Solides et Réactivité (MOST), Université catholique de Louvain, Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Eric Defrancq
- Université Grenoble-Alpes, UMR CNRS 5250, 38000, Grenoble, France
| | - Benjamin Elias
- Institut de la Matière Condensée et des Nanosciences (IMCN)-Molécules, Solides et Réactivité (MOST), Université catholique de Louvain, Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
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27
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Bonnat L, Bar L, Génnaro B, Bonnet H, Jarjayes O, Thomas F, Dejeu J, Defrancq E, Lavergne T. Template-Mediated Stabilization of a DNA G-Quadruplex formed in the HIV-1 Promoter and Comparative Binding Studies. Chemistry 2017; 23:5602-5613. [PMID: 28264144 DOI: 10.1002/chem.201700417] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Indexed: 02/06/2023]
Abstract
G-rich DNA oligonucleotides derived from the promoter region of the HIV-1 long terminal repeat (LTR) were assembled onto an addressable cyclopeptide platform through sequential oxime ligation, a thiol-iodoacetamide SN2 reaction, and copper-catalyzed azide-alkyne cycloaddition reactions. The resulting conjugate was shown to fold into a highly stable antiparallel G4 architecture as demonstrated by UV, circular dichroism (CD), and NMR spectroscopic analysis. The binding affinities of six state-of-the-art G4-binding ligands toward the HIV-G4 structure were compared to those obtained with a telomeric G4 structure and a hairpin structure. Surface plasmon resonance binding analysis provides new insights into the binding mode of broadly exploited G4 chemical probes and further suggests that potent and selective recognition of viral G4 structures of functional significance might be achieved.
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Affiliation(s)
- Laureen Bonnat
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France.,Univ. Grenoble Alpes, CNRS, DPM UMR-5063, 38000, Grenoble, France
| | - Laure Bar
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
| | - Béatrice Génnaro
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
| | - Hugues Bonnet
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
| | - Olivier Jarjayes
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
| | - Fabrice Thomas
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
| | - Jérôme Dejeu
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
| | - Eric Defrancq
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
| | - Thomas Lavergne
- Univ. Grenoble Alpes, CNRS, DCM UMR-5250, 38000, Grenoble, France
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28
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Abstract
New applications of Pd-catalyzed coupling reactions (Suzuki-Miyaura, Sonogashira, and Stille-Migita coupling) for post-conjugation of nucleic acids have been developed recently. Breakthroughs in this area might now pave the way for the development of sophisticated DNA probes, which might be of great interest in chemical biology, nanotechnology, and bioanalysis, as well as in diagnostic domains.
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Affiliation(s)
- Eric Defrancq
- Université Grenoble Alpes, CNRS, Département de Chimie Moléculaire, UMR 5250, B. P. 53, 38041, Grenoble Cedex 9, France
| | - Samir Messaoudi
- Université Paris-Sud, CNRS, BioCIS-UMR 8076, Laboratoire CoSMIT, Equipe Labellisée Ligue Contre Le Cancer, LabEx LERMIT, Faculté de Pharmacie, 5 rue J.-B. Clément, Châtenay-Malabry, 92296, France
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29
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Abstract
Carbohydrate microarrays represent powerful tools to study and detect carbohydrate-binding proteins, pathogens or cells.
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Affiliation(s)
| | - Eugénie Laigre
- Univ. Grenoble Alpes
- CNRS
- DCM UMR 5250
- F-38000 Grenoble
- France
| | - David Goyard
- Univ. Grenoble Alpes
- CNRS
- DCM UMR 5250
- F-38000 Grenoble
- France
| | - Eric Defrancq
- Univ. Grenoble Alpes
- CNRS
- DCM UMR 5250
- F-38000 Grenoble
- France
| | | | - Pascal Dumy
- Ecole Nationale Supérieure de Chimie de Montpellier
- 34000 Montpellier
- France
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30
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Saint-Germes L, Bar L, Dejeu J, Spinelli N, Defrancq E, Pratviel G. The pKa value of the proximal water molecule trans to a high-valent MnVO porphyrin: towards the control of reactivity by pH. Dalton Trans 2017; 46:12088-12094. [DOI: 10.1039/c7dt01829k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In water, the protonation state of the proximal water molecule of a high-valent manganese-oxo porphyrin could be controlled by pH. While in interaction with DNA the porphyrin was able to cleave DNA, only when the proximal water molecule was in the form of a hydroxyl group.
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Affiliation(s)
- Laurie Saint-Germes
- CNRS
- Laboratoire de Chimie de Coordination
- F-31077 Toulouse cedex4
- France
- Université de Toulouse
| | - Laure Bar
- Université Grenoble Alpes
- Département de Chimie Moléculaire-UMR CNRS 5250
- 38041 Grenoble Cedex 9
- France
| | - Jérôme Dejeu
- Université Grenoble Alpes
- Département de Chimie Moléculaire-UMR CNRS 5250
- 38041 Grenoble Cedex 9
- France
| | - Nicolas Spinelli
- Université Grenoble Alpes
- Département de Chimie Moléculaire-UMR CNRS 5250
- 38041 Grenoble Cedex 9
- France
| | - Eric Defrancq
- Université Grenoble Alpes
- Département de Chimie Moléculaire-UMR CNRS 5250
- 38041 Grenoble Cedex 9
- France
| | - Geneviève Pratviel
- CNRS
- Laboratoire de Chimie de Coordination
- F-31077 Toulouse cedex4
- France
- Université de Toulouse
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31
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Haddache F, Le Goff A, Spinelli N, Gairola P, Gorgy K, Gondran C, Defrancq E, Cosnier S. A label-free photoelectrochemical cocaine aptasensor based on an electropolymerized ruthenium-intercalator complex. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.09.127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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32
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Dejeu J, Lavergne T, Nora JD, Defrancq E, Pratviel G. Binding of metalloporphyrins to G-quadruplex DNA: The role of the central metal. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.02.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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33
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Garnir K, Estalayo-Adrián S, Lartia R, De Winter J, Defrancq E, Surin M, Lemaur V, Gerbaux P, Moucheron C. Parameters influencing the photo-induced electron transfer from tryptophan-containing peptides to a Ru(II) complex: a systematic study. Faraday Discuss 2016; 185:267-84. [PMID: 26395623 DOI: 10.1039/c5fd00059a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Ruthenium(II) polyazaaromatic complexes have gained interest in recent decades as biomolecular tools, especially in the development of new phototherapeutic agents. These light emissive Ru complexes based on π-deficient ligands were first designed to allow a photo-induced electron transfer (PET) with the guanine base in DNA since their (3)MLCT state is highly photo-oxidizing. Later the field of research was extended to proteins with the highlighting of a PET process with the tryptophan residue. This paper reports the kinetics of the luminescence quenching of [Ru(TAP)2phen](2+) by several selected peptide sequences containing at least one tryptophan residue. By using a peptide library we highlight the important parameters influencing the kinetics of the photo-electron transfer process, such as the net electrostatic charge and the number of tryptophan residues. The best peptide candidates were selected to study the formation of photo-products by MALDI-ToF mass spectrometry. A high photoreactivity of the [Ru(TAP)2phen](2+) complex was observed and multiple photoadducts were characterized, among them inter-peptidic adducts as well as intra-peptidic adducts.
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Affiliation(s)
- Kevin Garnir
- Laboratoire de Chimie Organique et Photochimie CP160/08, Université libre de Bruxelles, 50 Av. Franklin D. Roosevelt, 1050 Brussels, Belgium.
| | - Sandra Estalayo-Adrián
- Laboratoire de Chimie Organique et Photochimie CP160/08, Université libre de Bruxelles, 50 Av. Franklin D. Roosevelt, 1050 Brussels, Belgium.
| | - Rémy Lartia
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, 38000 Grenoble, France.
| | - Julien De Winter
- Service de Synthèse et de Spectrométire de Masse Organiques, Université de Mons, 23 Place du Parc, 7000 Mons, Belgium.
| | - Eric Defrancq
- Université Grenoble Alpes, Département de Chimie Moléculaire UMR CNRS 5250, 38000 Grenoble, France.
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials, Centre of Innovation and Research in Materials and Polymers, Université de Mons-UMONS, 20 Place du Parc, 7000 Mons, Belgium.
| | - Vincent Lemaur
- Laboratory for Chemistry of Novel Materials, Centre of Innovation and Research in Materials and Polymers, Université de Mons-UMONS, 20 Place du Parc, 7000 Mons, Belgium.
| | - Pascal Gerbaux
- Service de Synthèse et de Spectrométire de Masse Organiques, Université de Mons, 23 Place du Parc, 7000 Mons, Belgium.
| | - Cécile Moucheron
- Laboratoire de Chimie Organique et Photochimie CP160/08, Université libre de Bruxelles, 50 Av. Franklin D. Roosevelt, 1050 Brussels, Belgium.
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34
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Kazane I, Gorgy K, Gondran C, Spinelli N, Zazoua A, Defrancq E, Cosnier S. Highly Sensitive Bisphenol-A Electrochemical Aptasensor Based on Poly(Pyrrole-Nitrilotriacetic Acid)-Aptamer Film. Anal Chem 2016; 88:7268-73. [DOI: 10.1021/acs.analchem.6b01574] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Imen Kazane
- Univ.
Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, 570 rue de la Chimie, CS 40700, 38058 Grenoble cedex 9, France
- Université de Jijel, Laboratoire de Matériaux:
Elaborations-Propriétés-Applications, BP 98, Ouled Aissa, 18000 Jijel, Algeria
| | - Karine Gorgy
- Univ.
Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, 570 rue de la Chimie, CS 40700, 38058 Grenoble cedex 9, France
| | - Chantal Gondran
- Univ.
Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, 570 rue de la Chimie, CS 40700, 38058 Grenoble cedex 9, France
| | - Nicolas Spinelli
- Univ.
Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, 570 rue de la Chimie, CS 40700, 38058 Grenoble cedex 9, France
| | - Ali Zazoua
- Université de Jijel, Laboratoire de Matériaux:
Elaborations-Propriétés-Applications, BP 98, Ouled Aissa, 18000 Jijel, Algeria
| | - E. Defrancq
- Univ.
Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, 570 rue de la Chimie, CS 40700, 38058 Grenoble cedex 9, France
| | - Serge Cosnier
- Univ.
Grenoble Alpes, Département de Chimie Moléculaire, UMR CNRS 5250, 570 rue de la Chimie, CS 40700, 38058 Grenoble cedex 9, France
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35
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Lecarme L, Prado E, De Rache A, Nicolau-Travers ML, Gellon G, Dejeu J, Lavergne T, Jamet H, Gomez D, Mergny JL, Defrancq E, Jarjayes O, Thomas F. Efficient Inhibition of Telomerase by Nickel-Salophen Complexes. ChemMedChem 2016; 11:1133-6. [DOI: 10.1002/cmdc.201600171] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Laureline Lecarme
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Enora Prado
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Aurore De Rache
- ARNA laboratory; Inserm U1212, CNRS UMR 5320; Institut Européen de Chimie et Biologie IECB - Université de Bordeaux; 2 rue Robert Escarpit 33607 Pessac France
| | | | - Gisèle Gellon
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Jérôme Dejeu
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Thomas Lavergne
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Hélène Jamet
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Dennis Gomez
- Institut de Pharmacologie et de Biologie Structurale; 205 Route de Narbonne 31077 Toulouse Cedex 4 France
| | - Jean-Louis Mergny
- ARNA laboratory; Inserm U1212, CNRS UMR 5320; Institut Européen de Chimie et Biologie IECB - Université de Bordeaux; 2 rue Robert Escarpit 33607 Pessac France
| | - Eric Defrancq
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Olivier Jarjayes
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
| | - Fabrice Thomas
- Université Grenoble Alpes; Département de Chimie Moléculaire; UMR-5250; 38041 Grenoble Cedex 9 France
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36
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Marcélis L, Kajouj S, Ghesquière J, Fettweis G, Coupienne I, Lartia R, Surin M, Defrancq E, Piette J, Moucheron C, Kirsch-De Mesmaeker A. Highly DNA-Photoreactive Ruthenium 1,4,5,8-Tetraazaphenanthrene Complex Conjugated to the TAT Peptide: Efficient Vectorization inside HeLa Cells without Phototoxicity - The Importance of Cellular Distribution. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600278] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lionel Marcélis
- Organic Chemistry and Photochemistry; Université libre de Bruxelles (U.L.B.); 50 Av. F. D. Roosevelt, CP160/08 1050 Bruxelles Belgium
| | - Sofia Kajouj
- Organic Chemistry and Photochemistry; Université libre de Bruxelles (U.L.B.); 50 Av. F. D. Roosevelt, CP160/08 1050 Bruxelles Belgium
| | - Jonathan Ghesquière
- Organic Chemistry and Photochemistry; Université libre de Bruxelles (U.L.B.); 50 Av. F. D. Roosevelt, CP160/08 1050 Bruxelles Belgium
| | - Gregory Fettweis
- Laboratory of Virology and Immunology; GIGA-Research; University of Liège; B34 Av. de l'Hôpital 1 4000 Liège Belgium
| | - Isabelle Coupienne
- Laboratory of Virology and Immunology; GIGA-Research; University of Liège; B34 Av. de l'Hôpital 1 4000 Liège Belgium
| | - Rémy Lartia
- Département de Chimie Moléculaire; UMR CNRS; Université Grenoble Alpes; 38000 Grenoble France
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials; UMR CNRS; University of Mons - UMons; 20 Place du Parc 7000 Mons Belgium
| | - Eric Defrancq
- Département de Chimie Moléculaire; UMR CNRS; Université Grenoble Alpes; 38000 Grenoble France
| | - Jacques Piette
- Laboratory of Virology and Immunology; GIGA-Research; University of Liège; B34 Av. de l'Hôpital 1 4000 Liège Belgium
| | - Cécile Moucheron
- Organic Chemistry and Photochemistry; Université libre de Bruxelles (U.L.B.); 50 Av. F. D. Roosevelt, CP160/08 1050 Bruxelles Belgium
| | - Andrée Kirsch-De Mesmaeker
- Organic Chemistry and Photochemistry; Université libre de Bruxelles (U.L.B.); 50 Av. F. D. Roosevelt, CP160/08 1050 Bruxelles Belgium
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37
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Bonnat L, Dejeu J, Bonnet H, Génnaro B, Jarjayes O, Thomas F, Lavergne T, Defrancq E. Templated Formation of Discrete RNA and DNA:RNA Hybrid G-Quadruplexes and Their Interactions with Targeting Ligands. Chemistry 2016; 22:3139-47. [PMID: 26808196 DOI: 10.1002/chem.201504351] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Indexed: 11/10/2022]
Abstract
G-rich RNA and DNA oligonucleotides derived from the human telomeric sequence were assembled onto addressable cyclopeptide platforms through oxime ligations and copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions. The resulting conjugates were able to fold into highly stable RNA and DNA:RNA hybrid G-quadruplex (G4) architectures as demonstrated by UV, circular dichroism (CD), and NMR spectroscopic analysis. Whereas rationally designed parallel RNA and DNA:RNA hybrid G4 topologies could be obtained, we could not force the formation of an antiparallel RNA G4 structure, thus supporting the idea that this topology is strongly disfavored. The binding affinities of four representative G4 ligands toward the discrete RNA and DNA:RNA hybrid G4 topologies were compared to the one obtained with the corresponding DNA G4 structure. Surface plasmon resonance (SPR) binding analysis suggests that the accessibility to G4 recognition elements is different among the three structures and supports the idea that G4 ligands might be shaped to achieve structure selectivity in a biological context.
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Affiliation(s)
- Laureen Bonnat
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France.,CNRS, 38000, Grenoble, France
| | - Jérôme Dejeu
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France.,CNRS, 38000, Grenoble, France
| | - Hugues Bonnet
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France.,CNRS, 38000, Grenoble, France
| | - Béatrice Génnaro
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France.,CNRS, 38000, Grenoble, France
| | - Olivier Jarjayes
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France.,CNRS, 38000, Grenoble, France
| | - Fabrice Thomas
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France.,CNRS, 38000, Grenoble, France
| | - Thomas Lavergne
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France. .,CNRS, 38000, Grenoble, France.
| | - Eric Defrancq
- Université Grenoble Alpes, Département de Chimie Moléculaire, UMR-5250, 38000, Grenoble, France. .,CNRS, 38000, Grenoble, France.
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38
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Flack T, Constantin T, Penasse S, Dejeu J, Gennaro B, Jourdan M, Laguerre A, Pirrotta M, Monchaud D, Spinelli N, Defrancq E. Prefolded Synthetic G-Quartets Display Enhanced Bioinspired Properties. Chemistry 2015; 22:1760-7. [DOI: 10.1002/chem.201504572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Indexed: 01/19/2023]
Affiliation(s)
- Theodore Flack
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
| | - Thibaut Constantin
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
| | - Sylvain Penasse
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
| | - Jérôme Dejeu
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
| | - Béatrice Gennaro
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
| | - Muriel Jourdan
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
| | - Aurélien Laguerre
- Institut de Chimie Moléculaire; Université de Bourgogne (ICMUB); CNRS UMR 6302; 21078 Dijon France
| | - Marc Pirrotta
- Institut de Chimie Moléculaire; Université de Bourgogne (ICMUB); CNRS UMR 6302; 21078 Dijon France
| | - David Monchaud
- Institut de Chimie Moléculaire; Université de Bourgogne (ICMUB); CNRS UMR 6302; 21078 Dijon France
| | - Nicolas Spinelli
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
| | - Eric Defrancq
- Université Grenoble Alpes; Département de Chimie Moléculaire; CNRS UMR 5250; 38041 Grenoble France
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39
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Sabater L, Fang PJ, Chang CF, De Rache A, Prado E, Dejeu J, Garofalo A, Lin JH, Mergny JL, Defrancq E, Pratviel G. Cobalt(III)porphyrin to target G-quadruplex DNA. Dalton Trans 2015; 44:3701-7. [PMID: 25573281 DOI: 10.1039/c4dt03631j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
G-quadruplex DNA ligands attract much attention because of their potential use in biology. Indeed they may interfere with G-quadrulex nucleic acid function in cells. Most of the G-quadruplex ligands so far reported (including also metal complexes) are large planar aromatic compounds that interact by π-π stacking with an external G-quartet of quadruplex. Porphyrins are well-known G-quadruplex ligands. We report herein a new porphyrin scaffold (meso-tetrakis(4-(N-methyl-pyridinium-2-yl)phenyl)porphyrin) able to strongly and selectively bind to G-quadruplex DNA. We show that even when this porphyrin is metallated with cobalt(III), i.e. it carries two water molecules as axial ligands on the cobalt ion, on each face of the porphyrin, the interaction occurs by a π-stacking-like mode with an external G-quartet of quadruplex DNA.
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Affiliation(s)
- Laurent Sabater
- CNRS, Laboratoire de Chimie de Coordination, 205 Route de Narbonne, BP 44099, F-31077 Toulouse, France.
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40
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Osypova A, Thakar D, Dejeu J, Bonnet H, Van der Heyden A, Dubacheva GV, Richter RP, Defrancq E, Spinelli N, Coche-Guérente L, Labbé P. Sensor Based on Aptamer Folding to Detect Low-Molecular Weight Analytes. Anal Chem 2015; 87:7566-74. [PMID: 26122480 DOI: 10.1021/acs.analchem.5b01736] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Aptamers have emerged as promising biorecognition elements in the development of biosensors. The present work focuses on the application of quartz crystal microbalance with dissipation monitoring (QCM-D) for the enantioselective detection of a low molecular weight target molecule (less than 200 Da) by aptamer-based sensors. While QCM-D is a powerful technique for label-free, real-time characterization and quantification of molecular interactions at interfaces, the detection of small molecules interacting with immobilized receptors still remains a challenge. In the present study, we take advantage of the aptamer conformational changes upon the target binding that induces displacement of water acoustically coupled to the sensing layer. As a consequence, this phenomenon leads to a significant enhancement of the detection signal. The methodology is exemplified with the enantioselective recognition of a low molecular weight model compound, L-tyrosinamide (L-Tym). QCM-D monitoring of L-Tym interaction with the aptamer monolayer leads to an appreciable signal that can be further exploited for analytical purposes or thermodynamics studies. Furthermore, in situ combination of QCM-D with spectroscopic ellipsometry unambiguously demonstrates that the conformational change induces a nanometric decrease of the aptamer monolayer thickness. Since QCM-D is sensitive to the whole mass of the sensing layer including water that is acoustically coupled, a decrease in thickness of the highly hydrated aptamer layer induces a sizable release of water that can be easily detected by QCM-D.
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Affiliation(s)
- Alina Osypova
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Dhruv Thakar
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Jérôme Dejeu
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Hugues Bonnet
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Angéline Van der Heyden
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | | | - Ralf P Richter
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France.,§CIC biomaGUNE, 20009 Donostia-San Sebastian, Spain.,∥Max-Planck-Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Eric Defrancq
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Nicolas Spinelli
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Liliane Coche-Guérente
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Pierre Labbé
- †Université Grenoble Alpes, DCM UMR 5250, F-38000 Grenoble, France.,‡CNRS, DCM UMR 5250, F-38000 Grenoble, France
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41
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Sabater L, Nicolau-Travers ML, De Rache A, Prado E, Dejeu J, Bombarde O, Lacroix J, Calsou P, Defrancq E, Mergny JL, Gomez D, Pratviel G. The nickel(II) complex of guanidinium phenyl porphyrin, a specific G-quadruplex ligand, targets telomeres and leads to POT1 mislocalization in culture cells. J Biol Inorg Chem 2015; 20:729-38. [DOI: 10.1007/s00775-015-1260-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 03/22/2015] [Indexed: 10/23/2022]
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Yang C, Spinelli N, Perrier S, Defrancq E, Peyrin E. Macrocyclic host-dye reporter for sensitive sandwich-type fluorescent aptamer sensor. Anal Chem 2015; 87:3139-43. [PMID: 25738735 DOI: 10.1021/acs.analchem.5b00341] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We describe herein a novel approach for the fluorescent detection of small molecules using a sandwich-type aptamer strategy based on a signaling macrocyclic host-dye system. One split adenosine aptamer fragment was 5'-conjugated to a β-cylodextrin (CD) molecule while the other nucleic acid fragment was labeled at the 3'-end by a dansyl molecule prone to be included into the macrocycle. The presence of the small target analyte governed the assembly of the two fragments, bringing the dye molecule and its specific receptor in close proximity and promoting the inclusion interaction. Upon the inclusion complex formation, the microenvironment of dansyl was modified in such a way that the fluorescent intensity increased. Concomitantly, this supplementary interaction at the aptamer extremities induced stabilizing effects on the ternary complex. We next proposed a bivalent signaling design where the two extremities of one split aptamer fragment were conjugated to the β-CD molecule while those of the other fragment were tagged by the dansyl dye. The dual reporting dye inclusion promoted an improvement of both the signal-to-background change and the assay sensitivity. Owing to the vast diversity of responsive host-macrocycle systems available, this aptasensor strategy has potential to be extended to the multiplexed analysis and to other kinds of transducers (such as electrochemical).
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Affiliation(s)
- Cheng Yang
- †Université Grenoble Alpes, CNRS, DPM UMR 5063, F-38041 Grenoble, France.,‡Université Grenoble Alpes, CNRS, DCM UMR 5250, F-38041 Grenoble, France
| | - Nicolas Spinelli
- ‡Université Grenoble Alpes, CNRS, DCM UMR 5250, F-38041 Grenoble, France
| | - Sandrine Perrier
- †Université Grenoble Alpes, CNRS, DPM UMR 5063, F-38041 Grenoble, France
| | - Eric Defrancq
- ‡Université Grenoble Alpes, CNRS, DCM UMR 5250, F-38041 Grenoble, France
| | - Eric Peyrin
- †Université Grenoble Alpes, CNRS, DPM UMR 5063, F-38041 Grenoble, France
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Bonnet R, Lavergne T, Gennaro B, Spinelli N, Defrancq E. Construction of anti-parallel G-quadruplexes through sequential templated click. Chem Commun (Camb) 2015; 51:4850-3. [DOI: 10.1039/c4cc09744k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Biologically relevant anti-parallel DNA G-quadruplexes were constrained and stabilised onto addressable cyclopeptide scaffolds through sequential oxime and CuAAc reactions.
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Affiliation(s)
- Romaric Bonnet
- Université Grenoble Alpes
- Département de Chimie Moléculaire
- F-38000 Grenoble
- France
| | - Thomas Lavergne
- Université Grenoble Alpes
- Département de Chimie Moléculaire
- F-38000 Grenoble
- France
| | - Béatrice Gennaro
- Université Grenoble Alpes
- Département de Chimie Moléculaire
- F-38000 Grenoble
- France
| | - Nicolas Spinelli
- Université Grenoble Alpes
- Département de Chimie Moléculaire
- F-38000 Grenoble
- France
| | - Eric Defrancq
- Université Grenoble Alpes
- Département de Chimie Moléculaire
- F-38000 Grenoble
- France
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Estalayo-Adriàn S, Lartia R, Meyer A, Vasseur JJ, Morvan F, Defrancq E. Assessment of the Full Compatibility of Copper(I)-Catalyzed Alkyne-Azide Cycloaddition and Oxime Click Reactions for bis-Labelling of Oligonucleotides. ChemistryOpen 2014; 4:169-73. [PMID: 25969815 PMCID: PMC4420589 DOI: 10.1002/open.201402099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Indexed: 12/23/2022] Open
Abstract
The conjugation of oligonucleotides with reporters is of great interest for improving their intrinsic properties or endowing new ones. In this context, we report herein a new procedure for the bis-labelling of oligonucleotides through oxime ligation (Click-O) and copper(I)-catalyzed alkyne–azide cycloaddition (Click-H). 5′-Azido and 3′-aldehyde precursors were incorporated into oligonucleotides, and subsequent coupling reactions through Click-O and Click-H (or vice versa) were successfully achieved. In particular, we exhaustively investigated the full compatibility of each required step for both tethering strategies. The results demonstrate that click Huisgen and click oxime reactions are fully compatible. However, whilst both approaches can deliver the targeted doubly conjugated oligonucleotide, the route involving click oxime ligation prior to click Huisgen is significantly more successful. Thus the reactions investigated here can be considered to be key elements of the chemical toolbox for the synthesis of highly sophisticated bioconjugates.
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Affiliation(s)
- Sandra Estalayo-Adriàn
- Département de Chimie Moléculaire UMR CNRS 5250, Université Grenoble Alpes 38041, Grenoble Cedex 9, France
| | - Rémy Lartia
- Département de Chimie Moléculaire UMR CNRS 5250, Université Grenoble Alpes 38041, Grenoble Cedex 9, France
| | - Albert Meyer
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, Université de Montpellier 34095, Montpellier Cedex 5, France
| | - Jean-Jacques Vasseur
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, Université de Montpellier 34095, Montpellier Cedex 5, France
| | - François Morvan
- Institut des Biomolécules Max Mousseron, UMR 5247 CNRS, Université de Montpellier 34095, Montpellier Cedex 5, France
| | - Eric Defrancq
- Département de Chimie Moléculaire UMR CNRS 5250, Université Grenoble Alpes 38041, Grenoble Cedex 9, France
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Lecarme L, Prado E, De Rache A, Nicolau-Travers ML, Bonnet R, van Der Heyden A, Philouze C, Gomez D, Mergny JL, Jamet H, Defrancq E, Jarjayes O, Thomas F. Interaction of polycationic Ni(II)-salophen complexes with G-quadruplex DNA. Inorg Chem 2014; 53:12519-31. [PMID: 25383703 DOI: 10.1021/ic502063r] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A series of nine Ni(II) salophen complexes involving one, two, or three alkyl-imidazolium side-chains was prepared. The lengths of the side-chains were varied from one to three carbons. The crystal structure of one complex revealed a square planar geometry of the nickel ion. Fluorescence resonance energy transfer melting of G-quadruplex structures in the presence of salophen complex were performed. The G-quadruplex DNA structures were stabilized in the presence of the complexes, but a duplex DNA was not. The binding constants of the complexes for parallel and antiparallel G-quadruplex DNA, as well as hairpin DNA, were measured by surface plasmon resonance. The compounds were selective for G-quadruplex DNA, as reflected by equilibrium dissociation constant KD values in the region 0.1-1 μM for G-quadruplexes and greater than 2 μM for duplex DNA. Complexes with more and shorter side-chains had the highest binding constants. The structural basis for the interaction of the complexes with the human telomeric G-quadruplex DNA was investigated by computational studies: the aromatic core of the complex stacked over the last tetrad of the G-quadruplex with peripherical cationic side chains inserted into opposite grooves. Biochemical studies (telomeric repeat amplification protocol assays) indicated that the complexes significantly inhibited telomerase activity with IC50 values as low as 700 nM; the complexes did not significantly inhibit polymerase activity.
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Affiliation(s)
- Laureline Lecarme
- Université Grenoble Alpes , Département de Chimie Moléculaire, UMR CNRS 5250, BP 53, 38041 Grenoble Cedex 9, France
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Haddache F, Le Goff A, Reuillard B, Gorgy K, Gondran C, Spinelli N, Defrancq E, Cosnier S. Label-Free Photoelectrochemical Detection of Double-Stranded HIV DNA by Means of a Metallointercalator-Functionalized Electrogenerated Polymer. Chemistry 2014; 20:15555-60. [DOI: 10.1002/chem.201404335] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Indexed: 11/08/2022]
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Marcélis L, Van Overstraeten-Schlögel N, Lambermont J, Bontems S, Spinelli N, Defrancq E, Moucheron C, Kirsch-De Mesmaeker A, Raes M. Light-Triggered Green Fluorescent Protein Silencing in Human Keratinocytes in Culture Using Antisense Oligonucleotides Coupled to a Photoreactive Ruthenium(II) Complex. Chempluschem 2014. [DOI: 10.1002/cplu.201402212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Marcélis L, Surin M, Lartia R, Moucheron C, Defrancq E, Kirsch-De Mesmaeker A. Specificity of Light-Induced Covalent Adduct Formation between RuIIOligonucleotide Conjugates and Target Sequences for Gene Silencing Applications. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402189] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
The structure of the double helix of deoxyribonucleic acid (DNA, also called duplex-DNA) was elucidated sixty years ago by Watson, Crick, Wilkins and Franklin. Since then, DNA has continued to hold a fascination for researchers in diverse fields including medicine and nanobiotechnology. Nature has indeed excelled in diversifying the use of DNA: beyond its canonical role of repository of genetic information, DNA could also act as a nanofactory able to perform some complex catalytic tasks in an enzyme-mimicking manner. The catalytic capability of DNA was termed DNAzyme; in this context, a peculiar DNA structure, a quadruple helix also named quadruplex-DNA, has recently garnered considerable interest since its autonomous catalytic proficiency relies on its higher-order folding that makes it suitable to interact efficiently with hemin, a natural cofactor of many enzymes. Quadruplexes have thus been widely studied for their hemoprotein-like properties, chiefly peroxidase-like activity, i.e., their ability to perform hemin-mediated catalytic oxidation reactions. Recent literature is replete with applications of quadruplex-based peroxidase-mimicking DNAzyme systems. Herein, we take a further leap along the road to biochemical applications, assessing the actual efficiency of catalytic quadruplexes for the detection of picomolar levels of surface-bound analytes in an enzyme-linked immunosorbent (ELISA)-type assay. To this end, we exploit an innovative strategy based on the functionalization of DNA by a multitasking platform named RAFT (for regioselectivity addressable functionalized template), whose versatility enables the grafting of DNA whatever its nature (duplex-DNA, quadruplex-DNA, etc.). We demonstrate that the resulting biotinylated RAFT/quadruplex systems indeed acquire catalytic properties that allow for efficient luminescent detection of picomoles of surface-bound streptavidin. We also highlight some of the pitfalls that have to be faced during optimization, notably demonstrating that highly optimized experimental conditions can make DNA pre-catalysts catalytically competent whatever their secondary structures.
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Affiliation(s)
- Loic Stefan
- Institut de Chimie Moléculaire, Université de Bourgogne (ICMUB), CNRS UMR6302, Dijon, France.
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Reschner A, Shim YH, Dubois P, Delvenne P, Evrard B, Marcélis L, Moucheron C, Kirsch-De Mesmaeker A, Defrancq E, Raes M, Piette J, Collard L, Piel G. Evaluation of a new biocompatible poly(N-(morpholino ethyl methacrylate)-based copolymer for the delivery of ruthenium oligonucleotides, targeting HPV16 E6 oncogene. J Biomed Nanotechnol 2013; 9:1432-40. [PMID: 23926811 DOI: 10.1166/jbn.2013.1634] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study investigates the use of a new biocompatible block copolymer poly(2-(dimethylamino)ethyl methacrylate-N-(morpholino)ethyl methacrylate (PDMAEMA-b-PMEMA) for the delivery of a particular antisense oligonucleotide targeting E6 gene from human papilloma virus. This antisense oligonucleotide was derivatized with a polyazaaromatic Ru(II) complex which, under visible illumination, is able to produce an irreversible crosslink with the complementary targeted sequence. The purpose of this study is to determine whether by the use of a suitable transfection agent, it is possible to increase the efficiency of the antisense oligonucleotide targeting E6 gene, named Ru-P-4. In a recent study, we showed that Oligofectamine transfected Ru-P-4 antisense oligonucleotide failed to inhibit efficiently the growth of cervical cancer cell line SiHa, contrarily to the Ru-P-6 antisense oligonucleotide, another sequence also targeting the E6 gene. The ability of PDMAEMA-b-PMEMA to form polyplexes with optimal physicochemical characteristics was investigated first. Then the ability of the PDMAEMA-b-PMEMA/Ru-P-4 antisense oligonucleotide polyplexes to transfect two keratinocyte cell lines (SiHa and HaCat) and the capacity of polyplexes to inhibit HPV16+ cervical cancer cell growth was evaluated. PDMAEMA-b-PMEMA base polyplexes at the optimal molar ratio of polymer nitrogen atoms to DNA phosphates (N/P), were able to deliver Ru-P-4 antisense oligonucleotide and to induce a higher growth inhibition in human cervical cancer SiHa cells, compared to other formulations based on Oligofectamine.
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Affiliation(s)
- Anca Reschner
- Laboratory of Experimental Pathology, University of Liege, Liège 4000, Belgium
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