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Cruz-López JF, Palacios-Chavez JA, Guajardo-García JA, González-García A, Báez JE, López JA, Orozco-Castellanos LM, González-García G. A straightforward synthesis of neutral hexacoordinated silicon(IV) complexes with SiN6 skeleton. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Dayanidhi PD, Vaidyanathan VG. Structural insights into the recognition of DNA defects by small molecules. Dalton Trans 2021; 50:5691-5712. [PMID: 33949406 DOI: 10.1039/d0dt04289g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Studies on the binding interaction of small molecules and nucleic acids have been explored for their biological applications. With excellent photophysical/chemical properties, numerous metal complexes have been studied as structural probes for nucleic acids. The recognition of DNA defects is of high importance due to their association with various types of cancers. Small molecules that target DNA defects in a specific and selective manner offer a new avenue for developing novel drugs and diagnostic tools. Transition metal complexes have been studied as probes for abasic sites and DNA/RNA mismatches. By changing the ligand structure or metal center, the probing efficiency of the metal complexes varies towards the defects. In this perspective, we have discussed mainly the structural requirement of metal complexes as probes for abasic sites, mismatches, and covalent DNA adducts, followed by the challenges and future directions.
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Affiliation(s)
- P David Dayanidhi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. and Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
| | - V G Vaidyanathan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. and Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600 020, India
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3
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Rafols L, Torrente S, Aguilà D, Soto-Cerrato V, Pérez-Tomás R, Gamez P, Grabulosa A. Expanding the Range of Pyrenylphosphines and Their Derived Ru(II)-Arene Complexes. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Laia Rafols
- Departament de Quı́mica Inorgànica i Orgànica, Secció de Quı́mica Inorgànica, Universitat de Barcelona, Martı́ i Franquès, 1-11, E-08028 Barcelona, Spain
| | - Sara Torrente
- Departament de Quı́mica Inorgànica i Orgànica, Secció de Quı́mica Inorgànica, Universitat de Barcelona, Martı́ i Franquès, 1-11, E-08028 Barcelona, Spain
| | - David Aguilà
- Departament de Quı́mica Inorgànica i Orgànica, Secció de Quı́mica Inorgànica, Universitat de Barcelona, Martı́ i Franquès, 1-11, E-08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, E-08028 Barcelona, Spain
| | - Vanessa Soto-Cerrato
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, University of Barcelona, Campus Bellvitge, Feixa Llarga s/n, 08907 L’Hospitalet de Llobregat, Spain
- Oncobell Program, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de Llobregat, E-08908 Barcelona, Spain
| | - Ricardo Pérez-Tomás
- Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, University of Barcelona, Campus Bellvitge, Feixa Llarga s/n, 08907 L’Hospitalet de Llobregat, Spain
- Oncobell Program, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), L’Hospitalet de Llobregat, E-08908 Barcelona, Spain
| | - Patrick Gamez
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, E-08028 Barcelona, Spain
- Institució Catalana de Rercerca i Estudis Avançats (ICREA), Passeig Lluı́s Companys 23, E-08010, Barcelona, Spain
- NanoBIC, Departament de Quı́mica Inorgànica i Orgànica, Secció de Quı́mica Inorgànica, Universitat de Barcelona, Martı́ i Franquès, 1-11, E-08028 Barcelona, Spain
| | - Arnald Grabulosa
- Departament de Quı́mica Inorgànica i Orgànica, Secció de Quı́mica Inorgànica, Universitat de Barcelona, Martı́ i Franquès, 1-11, E-08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, E-08028 Barcelona, Spain
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Paul Elisa DD, Vaidyanathan Ganesan V. Switch-on effect on conformation-specific arylamine-DNA adduct by cyclometalated Ir(III) complexes. J Biol Inorg Chem 2020; 25:305-310. [PMID: 32052177 DOI: 10.1007/s00775-020-01762-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 02/06/2020] [Indexed: 12/23/2022]
Abstract
Arylamines are known to form covalent-DNA adducts upon metabolic activation. These covalent adducts adopt different conformational attributes, viz., major groove (B), stacked (S), and minor groove (W), and lead to different types of mutations. The conformation depends on the flanking and next flanking bases at the 3' position of the adduct. Early detection of these conformations by simple probes is an ideal and challenging task. Here, we have reported two Ir(III)-based cyclometalated complexes, viz., [Ir(ppy)2(imiphen)]+ (1) (ppy: 2-phenylpyridine; imiphen: 2-(1H-imidazol-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline) and [Ir(ppy)2(furphen)]+ (2) (furphen: 2-(furan-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline) and its interaction with N-acetyl-2-aminofluorene-dG (AAF-dG). The sequences used in this work are NarI sequence (-CG1G2CG3CX-) in which Gs are modified with AAF and X is either C or T. Luminescence studies reveal that the Ir(III) complexes bind to AAF-dG adduct with high specificity toward G1 and G3 compared to G2 and unmodified control. The selectivity also depends on the next flanking base as cytosine favors G3AAF, while thymine favors G1AAF in complex 1 and vice versa for complex 2. The quenching studies confirm that Ir(III) complexes bind with AAF-dG sequences through the minor groove. The outcome of this work reveals that the switch-on effect by the complexes can be utilized for determining the conformational heterogeneity of the adduct and also for similar covalent-DNA adducts.
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Affiliation(s)
- David Dayanidhi Paul Elisa
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vaidyanathan Vaidyanathan Ganesan
- Advanced Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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5
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Ding Q, Zhao S, Xiao H, Li Y, Liu S, Li L, Li C, Wang Y, Hong M, Luo J. An Uncommon Hypervalent Fluorooxosilicophosphate. Chem Asian J 2019; 14:4174-4178. [PMID: 31622536 DOI: 10.1002/asia.201901410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Qingran Ding
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
- University of Chinese Academy of Science Beijing 100049 China
| | - Sangen Zhao
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Han Xiao
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Yanqiang Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Shuai Liu
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Lina Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Chunsen Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Yusong Wang
- University of Science and Technology of China Anhui 230026 China
| | - Maochun Hong
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Junhua Luo
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
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6
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Dayanidhi DPE, Malapati RP, Vaidyanathan Ganesan V. Selective recognition of DNA defects by cyclometalated Ir(iii) complexes. Dalton Trans 2019; 48:13536-13540. [DOI: 10.1039/c9dt01225g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Three different cyclometalated Ir(iii) complexes selectively bind to DNA defects.
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Affiliation(s)
- David Paul Elisa Dayanidhi
- Academy of Scientific and Innovative Research (AcSIR), Advanced Materials Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
| | - Rozaria Pinky Malapati
- Academy of Scientific and Innovative Research (AcSIR), Advanced Materials Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
| | - Vaidyanathan Vaidyanathan Ganesan
- Academy of Scientific and Innovative Research (AcSIR), Advanced Materials Laboratory
- CSIR-Central Leather Research Institute
- Chennai 600 020
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7
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Bis(pyrazolyl)acetate and bis(3,5-dimethylpyrazolyl)acetate tris -acetonitrile ruthenium(II) complexes: Synthesis, properties, and structure. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.05.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Marsoner T, Schmidt OP, Triemer T, Luedtke NW. DNA-Targeted Inhibition of MGMT. Chembiochem 2017; 18:894-898. [PMID: 28177192 DOI: 10.1002/cbic.201600652] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Indexed: 12/17/2022]
Abstract
The cationic porphyrin 5,10,15,20-tetrakis (diisopropyl-guanidine)-21H,23H-porphine (DIGPor) selectively binds to DNA containing O6 -methylguanine (O6 -MeG) and inhibits the DNA repair enzyme O6 -methylguanine-DNA methyltransferase (MGMT). The O6 -MeG selectivity and MGMT inhibitory activity of DIGPor were improved by incorporating ZnII into the porphyrin. The resulting metal complex (Zn-DIGPor) potentiated the activity of the DNA-alkylating drug temozolomide in an MGMT-expressing cell line. To the best of our knowledge, this is the first example of DNA-targeted MGMT inhibition.
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Affiliation(s)
- Theodor Marsoner
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Olivia P Schmidt
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Therese Triemer
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Nathan W Luedtke
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
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9
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Discovery of an Octahedral Silicon Complex as a Potent Antifungal Agent. Molecules 2017; 22:molecules22040637. [PMID: 28420136 PMCID: PMC6154614 DOI: 10.3390/molecules22040637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 04/05/2017] [Accepted: 04/12/2017] [Indexed: 11/21/2022] Open
Abstract
Octahedral transition metal complexes have been shown to have tremendous applications in chemical biology and medicinal chemistry. Meanwhile, structural transition metals can be replaced by inert octahedral silicon in a proof-of-principle study. We here introduce the first example of octahedral silicon complexes, which can very well serve as an efficient antimicrobial agent. The typical silicon arenediolate complex 1 {[(phen)2Si(OO)](PF6)2, with phen = 1,10-phenanthroline, OO = 9,10-phenanthrenediolate} exhibited significant inhibition towards the growth of Cryptococcus neoformans with MIC and MFC values of 4.5 and 11.3 μM, respectively. Moreover, it was fungicidal against both proliferative and quiescent Cryptococcus cells. This work may set the stage for the development of novel antifungal drugs based upon hexacoodinate silicon scaffolds.
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10
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Peloquin DM, Schmedake TA. Recent advances in hexacoordinate silicon with pyridine-containing ligands: Chemistry and emerging applications. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.02.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Fung SK, Zou T, Cao B, Chen T, To WP, Yang C, Lok CN, Che CM. Luminescent platinum(II) complexes with functionalized N-heterocyclic carbene or diphosphine selectively probe mismatched and abasic DNA. Nat Commun 2016; 7:10655. [PMID: 26883164 PMCID: PMC4757794 DOI: 10.1038/ncomms10655] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 01/06/2016] [Indexed: 01/09/2023] Open
Abstract
The selective targeting of mismatched DNA overexpressed in cancer cells is an appealing strategy in designing cancer diagnosis and therapy protocols. Few luminescent probes that specifically detect intracellular mismatched DNA have been reported. Here we used Pt(II) complexes with luminescence sensitive to subtle changes in the local environment and report several Pt(II) complexes that selectively bind to and identify DNA mismatches. We evaluated the complexes' DNA-binding characteristics by ultraviolet/visible absorption titration, isothermal titration calorimetry, nuclear magnetic resonance and quantum mechanics/molecular mechanics calculations. These Pt(II) complexes show up to 15-fold higher emission intensities upon binding to mismatched DNA over matched DNA and can be utilized for both detecting DNA abasic sites and identifying cancer cells and human tissue samples with different levels of mismatch repair. Our work highlights the potential of luminescent Pt(II) complexes to differentiate between normal cells and cancer cells which generally possess more aberrant DNA structures. DNA pairing defects such as mismatched and abasic DNA are prevalent in cancer cells. Here, the authors present luminescent platinum based probes capable of preferentially binding to mismatched and abasic DNA, and reporting this by a significant luminescence enhancement
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Affiliation(s)
- Sin Ki Fung
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Taotao Zou
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.,HKU Shenzhen Institute of Research and Innovation Shenzhen, Shenzhen 518053, China
| | - Bei Cao
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Tianfeng Chen
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.,HKU Shenzhen Institute of Research and Innovation Shenzhen, Shenzhen 518053, China
| | - Chun-Nam Lok
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Chemical Biology Centre, and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.,HKU Shenzhen Institute of Research and Innovation Shenzhen, Shenzhen 518053, China
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12
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Exploring the structure and redox activity of hexacoordinate bis(bipyridyl)silicon(IV) complexes. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.04.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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