1
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Wang FY, Yang LM, Xiong XL, Yang J, Yang Y, Tang JQ, Gao L, Lu Y, Wang Y, Zou T, Liang H, Huang KB. Rhodium(III) Complex Noncanonically Potentiates Antitumor Immune Responses by Inhibiting Wnt/β-Catenin Signaling. J Med Chem 2024; 67:13778-13787. [PMID: 39134504 DOI: 10.1021/acs.jmedchem.4c00583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Metal-based chemoimmunotherapy has recently garnered significant attention for its capacity to stimulate tumor-specific immunity beyond direct cytotoxic effects. Such effects are usually caused by ICD via the activation of DAMP signals. However, metal complexes that can elicit antitumor immune responses other than ICD have not yet been described. Herein, we report that a rhodium complex (Rh-1) triggers potent antitumor immune responses by downregulating Wnt/β-catenin signaling with subsequent activation of T lymphocyte infiltration to the tumor site. The results of mechanistic experiments suggest that ROS accumulation following Rh-1 treatment is a critical trigger of a decrease in β-catenin and enhanced secretion of CCL4, a key mediator of T cell infiltration. Through these properties, Rh-1 exerts a synergistic effect in combination with PD-1 inhibitors against tumor growth in vivo. Taken together, our work describes a promising metal-based antitumor agent with a noncanonical mode of action to sensitize tumor tissues to ICB therapy.
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Affiliation(s)
- Feng-Yang Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Liang-Mei Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xiao-Lin Xiong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou 510006, China
| | - Jing Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Yan Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou 510006, China
| | - Jiu-Qin Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Lei Gao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Yuan Lu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Yuan Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou 510006, China
| | - Taotao Zou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Science, Sun Yat-Sen University, Guangzhou 510006, China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Ke-Bin Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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2
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Hood JC, Anokhin MV, Klumpp DA. Friedel-Crafts Reactions with N-Heterocyclic Alcohols. J Org Chem 2023. [PMID: 37471592 DOI: 10.1021/acs.joc.3c00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
N-Heterocyclic alcohols are shown to be excellent substrates for superacid-promoted Friedel-Crafts reactions. The N-heterocyclic alcohols ionize to produce reactive, dicationic intermediates which provide good to excellent yields of arylation products.
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Affiliation(s)
- Jacob C Hood
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Maksim V Anokhin
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Douglas A Klumpp
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
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3
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Zheng Y, Chen XX, Zhang DY, Wang WJ, Peng K, Li ZY, Mao ZW, Tan CP. Activation of the cGAS-STING pathway by a mitochondrial DNA-targeted emissive rhodium(iii) metallointercalator. Chem Sci 2023; 14:6890-6903. [PMID: 37389261 PMCID: PMC10306090 DOI: 10.1039/d3sc01737k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/05/2023] [Indexed: 07/01/2023] Open
Abstract
The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon (STING) pathway is a key mediator of innate immunity involved in cancer development and treatment. The roles of mitochondrial DNA (mtDNA) in cancer immunotherapy have gradually emerged. Herein, we report a highly emissive rhodium(iii) complex (Rh-Mito) as the mtDNA intercalator. Rh-Mito can specifically bind to mtDNA to cause the cytoplasmic release of mtDNA fragments to activate the cGAS-STING pathway. Moreover, Rh-Mito activates the mitochondrial retrograde signaling by disturbing the key metabolites involved in epigenetic modifications, which alters the nuclear genome methylation landscape to influence the expression of genes related to immune signaling pathways. Finally, we demonstrate that ferritin-encapsulated Rh-Mito elicits potent anticancer activities and evokes intense immune responses in vivo by intravenous injection. Overall, we report for the first time that small molecules targeting mtDNA can activate the cGAS-STING pathway, which gives insights into the development of biomacromolecule-targeted immunotherapeutic agents.
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Affiliation(s)
- Yue Zheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
| | - Xiao-Xiao Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
| | - Dong-Yang Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
| | - Wen-Jin Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
| | - Kun Peng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
| | - Zhi-Yuan Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
| | - Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University Guangzhou 510006 P. R. China
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4
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Andrezálová L, Országhová Z. Covalent and noncovalent interactions of coordination compounds with DNA: An overview. J Inorg Biochem 2021; 225:111624. [PMID: 34653826 DOI: 10.1016/j.jinorgbio.2021.111624] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/30/2021] [Accepted: 09/28/2021] [Indexed: 12/26/2022]
Abstract
Deoxyribonucleic acid plays a central role in crucial cellular processes, and many drugs exert their effects through binding to DNA. Since the discovery of cisplatin and its derivatives considerable attention of researchers has been focused on the development of novel anticancer metal-based drugs. Transition metal complexes, due to their great diversity in size and structure, have a big potential to modify DNA through diverse types of interactions, making them the prominent class of compounds for DNA targeted therapy. In this review we describe various binding modes of metal complexes to duplex DNA based on covalent and noncovalent interactions or combination of both. Specific examples of each binding mode as well as possible cytotoxic effects of metal complexes in tumor cells are presented.
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Affiliation(s)
- Lucia Andrezálová
- Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Faculty of Medicine, Comenius University, Sasinkova 2, 813 72 Bratislava, Slovakia; Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovakia.
| | - Zuzana Országhová
- Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Faculty of Medicine, Comenius University, Sasinkova 2, 813 72 Bratislava, Slovakia
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5
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Nano A, Dai J, Bailis JM, Barton JK. Rhodium Complexes Targeting DNA Mismatches as a Basis for New Therapeutics in Cancers Deficient in Mismatch Repair. Biochemistry 2021; 60:2055-2063. [PMID: 34115466 DOI: 10.1021/acs.biochem.1c00302] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cancers with microsatellite instability (MSI), which include ≤20% of solid tumors, are characterized by resistance to chemotherapy due to deficiency in the DNA mismatch repair (MMR) pathway. Rhodium metalloinsertors make up a class of compounds that bind DNA mismatches with high specificity and show selective cytotoxicity in MSI cancer cells. We determined that rhodium complexes with an N∧O coordination showed significantly increased cell potency compared with that of N∧N-coordinated compounds, and we identified [Rh(chrysi)(phen)(PPO)]2+ (RhPPO) as the most potent, selective compound in this class. Using matched cell lines that are MMR-deficient (HCT116O) and MMR-proficient (HCT116N), we demonstrated that RhPPO preferentially activates the DNA damage response and inhibits DNA replication and cell proliferation in HCT116O cells, leading to cell death by necrosis. Using a fluorescent conjugate of RhPPO, we established that the metalloinsertor localizes to DNA mismatches in the cell nucleus and causes DNA double-strand breaks at or near the mismatch sites. Evaluation of RhPPO across MMR-deficient and MMR-proficient cell lines confirmed the broad potential for RhPPO to target MSI cancers, with cell potency significantly higher than that of platinum complexes used broadly as chemotherapeutics. Moreover, in a mouse xenograft model of MSI cancer, RhPPO shows promising antitumor activity and increased survival. Thus, our studies indicate that RhPPO is a novel DNA-targeted therapy with improved potency and selectivity over standard-of-care platinum-based chemotherapy and, importantly, that DNA mismatches offer a critical new target in the design of chemotherapeutics for MSI cancers.
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Affiliation(s)
- Adela Nano
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Joanne Dai
- Department of Oncology Research, Amgen Research, Amgen, Inc., South San Francisco, California 94080, United States
| | - Julie M Bailis
- Department of Oncology Research, Amgen Research, Amgen, Inc., South San Francisco, California 94080, United States
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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6
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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] [MESH Headings] [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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7
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Pal S, Nozaki K, Vedernikov AN, Love JA. Reversible Pt II-CH 3 deuteration without methane loss: metal-ligand cooperation vs. ligand-assisted Pt II-protonation. Chem Sci 2021; 12:2960-2969. [PMID: 34164064 PMCID: PMC8179389 DOI: 10.1039/d0sc06518h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Di(2-pyridyl)ketone dimethylplatinum(ii), (dpk)PtII(CH3)2, reacts with CD3OD at 25 °C to undergo complete deuteration of Pt-CH3 fragments in ∼5 h without loss of methane to form (dpk)PtII(CD3)2 in virtually quantitative yield. The deuteration can be reversed by dissolution in CH3OH or CD3OH. Kinetic analysis and isotope effects, together with support from density functional theory calculations indicate a metal-ligand cooperative mechanism wherein DPK enables Pt-CH3 deuteration by allowing non-rate-limiting protonation of PtII by CD3OD. In contrast, other model di(2-pyridyl) ligands enable rate-limiting protonation of PtII, resulting in non-rate-limiting C-H(D) reductive coupling. Owing to its electron-poor nature, following complete deuteration, DPK can be dissociated from the PtII-centre, furnishing [(CD3)2PtII(μ-SMe2)]2 as the perdeutero analogue of [(CH3)2PtII(μ-SMe2)]2, a commonly used PtII-precursor.
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Affiliation(s)
- Shrinwantu Pal
- Department of Chemistry and Biotechnology, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Andrei N Vedernikov
- Department of Chemistry and Biochemistry, The University of Maryland College Park Maryland 20742 USA
| | - Jennifer A Love
- Department of Chemistry, The University of British Columbia Vancouver British Columbia V6T 1Z1 Canada
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8
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Gill MR, Walker MG, Able S, Tietz O, Lakshminarayanan A, Anderson R, Chalk R, El-Sagheer AH, Brown T, Thomas JA, Vallis KA. An 111In-labelled bis-ruthenium(ii) dipyridophenazine theranostic complex: mismatch DNA binding and selective radiotoxicity towards MMR-deficient cancer cells. Chem Sci 2020; 11:8936-8944. [PMID: 33815738 PMCID: PMC7989384 DOI: 10.1039/d0sc02825h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/04/2020] [Indexed: 12/23/2022] Open
Abstract
Theranostic radionuclides that emit Auger electrons (AE) can generate highly localised DNA damage and the accompanying gamma ray emission can be used for single-photon emission computed tomography (SPECT) imaging. Mismatched DNA base pairs (mismatches) are DNA lesions that are abundant in cells deficient in MMR (mismatch mediated repair) proteins. This form of genetic instability is prevalent in the MMR-deficient subset of colorectal cancers and is a potential target for AE radiotherapeutics. Herein we report the synthesis of a mismatch DNA binding bis-ruthenium(ii) dipyridophenazine (dppz) complex that can be radiolabelled with the Auger electron emitting radionuclide indium-111 (111In). Greater stabilisation accompanied by enhanced MLCT (metal to ligand charge-transfer) luminescence of both the bis-Ru(dppz) chelator and non-radioactive indium-loaded complex was observed in the presence of a TT mismatch-containing duplex compared to matched DNA. The radioactive construct [111In]In-bisRu(dppz) ([111In][In-2]4+) targets cell nuclei and is radiotoxic towards MMR-deficient human colorectal cancer cells showing substantially less detrimental effects in a paired cell line with restored MMR function. Additional cell line studies revealed that [111In][In-2]4+ is preferentially radiotoxic towards MMR-deficient colorectal cancer cells accompanied by increased DNA damage due to 111In decay. The biodistribution of [111In][In-2]4+ in live mice was demonstrated using SPECT. These results illustrate how a Ru(ii) polypyridyl complex can incorporate mismatch DNA binding and radiometal chelation in a single molecule, generating a DNA-targeting AE radiopharmaceutical that displays selective radiotoxicity towards MMR-deficient cancer cells and is compatible with whole organism SPECT imaging.
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Affiliation(s)
- Martin R Gill
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
- Department of Chemistry , Swansea University , Swansea , Wales , UK .
| | - Michael G Walker
- Department of Chemistry , University of Sheffield , Sheffield , UK
| | - Sarah Able
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
| | - Ole Tietz
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
| | - Abirami Lakshminarayanan
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , Oxford OX1 3TA , UK
| | - Rachel Anderson
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
| | - Rod Chalk
- Structural Genomics Consortium , University of Oxford , Oxford , UK
| | - Afaf H El-Sagheer
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , Oxford OX1 3TA , UK
- Chemistry Branch , Department of Science and Mathematics , Faculty of Petroleum and Mining Engineering , Suez University , Suez 43721 , Egypt
| | - Tom Brown
- Chemistry Research Laboratory , Department of Chemistry , University of Oxford , Oxford OX1 3TA , UK
| | - Jim A Thomas
- Department of Chemistry , University of Sheffield , Sheffield , UK
| | - Katherine A Vallis
- Oxford Institute for Radiation Oncology , Department of Oncology , University of Oxford , Oxford , UK .
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9
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In vivo anticancer activity of a rhodium metalloinsertor in the HCT116 xenograft tumor model. Proc Natl Acad Sci U S A 2020; 117:17535-17542. [PMID: 32661159 PMCID: PMC7395490 DOI: 10.1073/pnas.2006569117] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mismatch repair (MMR) deficiencies are a hallmark of various cancers causing accumulation of DNA mutations and mismatches, which often results in chemotherapy resistance. Metalloinsertor complexes, including [Rh(chrysi)(phen)(PPO)]Cl2 (Rh-PPO), specifically target DNA mismatches and selectively induce cytotoxicity within MMR-deficient cells. Here, we present an in vivo analysis of Rh-PPO, our most potent metalloinsertor. Studies with HCT116 xenograft tumors revealed a 25% reduction in tumor volume and 12% increase in survival with metalloinsertor treatment (1 mg/kg; nine intraperitoneal doses over 20 d). When compared to oxaliplatin, Rh-PPO displays ninefold higher potency at tumor sites. Pharmacokinetic studies revealed rapid absorption of Rh-PPO in plasma with notable accumulation in the liver compared to tumors. Additionally, intratumoral metalloinsertor administration resulted in enhanced anticancer effects, pointing to a need for more selective delivery methods. Overall, these data show that Rh-PPO inhibits xenograft tumor growth, supporting the strategy of using Rh-PPO as a chemotherapeutic targeted to MMR-deficient cancers.
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10
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Nano A, Bailis JM, Mariano NF, Pham ED, Threatt SD, Barton JK. Cell-Selective Cytotoxicity of a Fluorescent Rhodium Metalloinsertor Conjugate Results from Irreversible DNA Damage at Base Pair Mismatches. Biochemistry 2020; 59:717-726. [DOI: 10.1021/acs.biochem.9b01037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Adela Nano
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Julie M. Bailis
- Department of Oncology Research, Amgen Research, Amgen, Inc., South San Francisco, California 94080, United States
| | - Natalie F. Mariano
- Department of Oncology Research, Amgen Research, Amgen, Inc., South San Francisco, California 94080, United States
| | - Elizabeth D. Pham
- Department of Oncology Research, Amgen Research, Amgen, Inc., South San Francisco, California 94080, United States
| | - Stephanie D. Threatt
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jacqueline K. Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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11
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Graf M, Siegmund D, Metzler‐Nolte N, Sünkel K. Bis‐cyclometalated Rhodium and Iridium Chloride Complexes Yield Different Products Upon Reaction With 9,10‐Diaminophenanthrene. Z Anorg Allg Chem 2019. [DOI: 10.1002/zaac.201900147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marion Graf
- Dept. Chemistry Ludwig‐Maximilians‐University Munich Butenandtstr. 9 81377 Munich Germany
| | - Daniel Siegmund
- Lehrstuhl für Anorganische Chemie I Bioanorganische Chemie Ruhr Universität Bochum Universitätsstrasse 150 44801 Bochum Germany
| | - Nils Metzler‐Nolte
- Lehrstuhl für Anorganische Chemie I Bioanorganische Chemie Ruhr Universität Bochum Universitätsstrasse 150 44801 Bochum Germany
| | - Karlheinz Sünkel
- Dept. Chemistry Ludwig‐Maximilians‐University Munich Butenandtstr. 9 81377 Munich Germany
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12
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Ribeiro GH, Colina-Vegas L, Clavijo JC, Ellena J, Cominetti MR, Batista AA. Ru(II)/N-N/PPh3 complexes as potential anticancer agents against MDA-MB-231 cancer cells (N-N = diimine or diamine). J Inorg Biochem 2019; 193:70-83. [DOI: 10.1016/j.jinorgbio.2019.01.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 01/10/2019] [Accepted: 01/12/2019] [Indexed: 01/27/2023]
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13
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Boyle KM, Nano A, Day C, Barton JK. Cellular Target of a Rhodium Metalloinsertor is the DNA Base Pair Mismatch. Chemistry 2019; 25:3014-3019. [PMID: 30615818 DOI: 10.1002/chem.201900042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Indexed: 12/25/2022]
Abstract
Defects in DNA mismatch repair (MMR) are commonly found in various cancers, especially in colorectal cancers. Despite the high prevalence of MMR-deficient cancers, mismatch-targeted therapeutics are limited and diagnostic tools are indirect. Here, we examine the cytotoxic properties of a rhodium metalloinsertor, [Rh(phen)(chrysi)(PPO)]2+ (RhPPO) in 27 diverse colorectal cancer cell lines. Despite the low frequency of genomic mismatches and the non-covalent nature of the RhPPO-DNA lesion, RhPPO is on average five times more potent than cisplatin. Importantly, the biological target and profile for RhPPO differs from that of cisplatin. A fluorescent metalloinsertor, RhCy3, was used to demonstrate that the cellular target of RhPPO is the DNA mismatch. RhCy3 represents a direct probe for MMR-deficiency and correlates directly with the cytotoxicity of RhPPO across different cell lines. Overall, our studies clearly indicate that RhPPO and RhCy3 are promising anticancer and diagnostic probes for MMR-deficient cancers, respectively.
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Affiliation(s)
- Kelsey M Boyle
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California, 91125, USA
| | - Adela Nano
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California, 91125, USA
| | - Catherine Day
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California, 91125, USA
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California, 91125, USA
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14
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Armaghan M, Niu RJ, Liu Y, Zhang WH, Hor TA, Lang JP. Zn-based metal–organic frameworks (MOFs) of pyridinemethanol–carboxylate conjugated ligands: Deprotonation-dependent structures and CO2 adsorption. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.07.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Gabr MT, Pigge FC. Platinum(II) Complexes with Sterically Expansive Tetraarylethylene Ligands as Probes for Mismatched DNA. Inorg Chem 2018; 57:12641-12649. [DOI: 10.1021/acs.inorgchem.8b01782] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Moustafa T. Gabr
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - F. Christopher Pigge
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
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16
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Frei A, Mokolokolo PP, Bolliger R, Braband H, Tsosane MS, Brink A, Roodt A, Alberto R. Self-Assembled Multinuclear Complexes Incorporating 99m Tc. Chemistry 2018; 24:10397-10402. [PMID: 29672957 DOI: 10.1002/chem.201800600] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/18/2018] [Indexed: 12/30/2022]
Abstract
Multinuclear complexes or clusters are rarely investigated in medicinal inorganic chemistry although they represent structural intermediates between molecules and nanomaterials. We present in this report two strategies towards 99m Tc-containing clusters. In a pre-assembly approach, the preformed but incomplete cluster fragment [Re3 (μ2 -OH)3 (μ3 -OH)(CO)9 ]- reacts with [99m Tc(CO)3 ]+ to the highly stable [99m TcRe3 (μ3 -OH)4 (CO)12 ] cube. The same structure self-assembles when reacting the mononuclear Re and 99m Tc precursors in one pot. Integrating the coordinating OH groups from Schiff bases in this concept leads straight to dinuclear, mixed-metal complexes of the type [99m TcRe(μ2 -O^N-R1 )2 (CO)6 ] in quantitative yields. Both strategies are unprecedented and open a future path towards clusters, incorporating a 99m Tc radiolabel while being decorated with targeting or cytotoxic moieties.
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Affiliation(s)
- Angelo Frei
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
| | - Pennie P Mokolokolo
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Robin Bolliger
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
| | - Henrik Braband
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
| | - Mampotso S Tsosane
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Alice Brink
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Andreas Roodt
- Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland
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17
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Boyle KM, Barton JK. A Family of Rhodium Complexes with Selective Toxicity toward Mismatch Repair-Deficient Cancers. J Am Chem Soc 2018; 140:5612-5624. [PMID: 29620877 DOI: 10.1021/jacs.8b02271] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Rhodium metalloinsertors are a unique set of metal complexes that bind specifically to DNA base pair mismatches in vitro and kill mismatch repair (MMR)-deficient cells at lower concentrations than their MMR-proficient counterparts. A family of metalloinsertors containing rhodium-oxygen ligand coordination, termed "Rh-O" metalloinsertors, has been prepared and shown to have a significant increase in both overall potency and selectivity toward MMR-deficient cells regardless of structural changes in the ancillary ligands. Here we describe DNA-binding and cellular studies with the second generation of Rh-O metalloinsertors in which an ancillary ligand is varied in both steric bulk and lipophilicity. These complexes, of the form [Rh(L)(chrysi)(PPO)]2+, all include the O-containing PPO ligand (PPO = 2-(pyridine-2-yl)propan-2-ol) and the aromatic inserting ligand chrysi (5,6-chrysene quinone diimine) but differ in the identity of their ancillary ligand L, where L is a phenanthroline or bipyridyl derivative. The Rh-O metalloinsertors in this family all show micromolar binding affinities for a 29-mer DNA hairpin containing a single CC mismatch. The complexes display comparable lipophilic tendencies and p Ka values of 8.1-9.1 for dissociation of an imine proton on the chrysi ligand. In cellular proliferation and cytotoxicity assays with MMR-deficient cells (HCT116O) and MMR-proficient cells (HCT116N), the complexes containing the phenanthroline-derived ligands show highly selective cytotoxic preference for the MMR-deficient cells at nanomolar concentrations. Using mass spectral analyses, it is shown that the complexes are taken into cells through a passive mechanism and exhibit low accumulation in mitochondria, an off-target organelle that, when targeted by parent metalloinsertors, can lead to nonselective cytotoxicity. Overall, these Rh-O metalloinsertors have distinct and improved behavior compared to previous generations of parent metalloinsertors, making them ideal candidates for further therapeutic assessment.
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Affiliation(s)
- Kelsey M Boyle
- Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , United States
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering , California Institute of Technology , Pasadena , California 91125 , United States
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18
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Hao ZM, Chao MY, Liu Y, Song YL, Yang JY, Ding L, Zhang WH, Lang JP. Evaluating the component contribution to nonlinear optical performances using stable [Ni4O4] cuboidal clusters as models. Dalton Trans 2018; 47:8865-8869. [DOI: 10.1039/c8dt02080a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cuboidal [Ni4O4]-based clusters are systematically studied with the purpose of evaluating the component contribution to the overall nonlinear optical performances.
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Affiliation(s)
- Zhi-Min Hao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Meng-Yao Chao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Yan Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Ying-Lin Song
- College of Physics
- Optoelectronics
- and Energy
- Soochow University
- Suzhou 215006
| | - Jun-Yi Yang
- College of Physics
- Optoelectronics
- and Energy
- Soochow University
- Suzhou 215006
| | - Lifeng Ding
- Department of Chemistry
- Xi'an Jiaotong-Liverpool University
- Suzhou 215123
- China
| | - Wen-Hua Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Jian-Ping Lang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
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19
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Nano A, Boynton AN, Barton JK. A Rhodium-Cyanine Fluorescent Probe: Detection and Signaling of Mismatches in DNA. J Am Chem Soc 2017; 139:17301-17304. [PMID: 29136382 PMCID: PMC5892186 DOI: 10.1021/jacs.7b10639] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report a bifunctional fluorescent probe that combines a rhodium metalloinsertor with a cyanine dye as the fluorescent reporter. The conjugate shows weak luminescence when free in solution or with well matched DNA but exhibits a significant luminescence increase in the presence of a 27-mer DNA duplex containing a central CC mismatch. DNA photocleavage experiments demonstrate that, upon photoactivation, the conjugate cleaves the DNA backbone specifically near the mismatch site on a 27-mer fragment, consistent with mismatch targeting. Fluorescence titrations with the 27-mer duplex containing the CC mismatch reveal a DNA binding affinity of 3.1 × 106 M-1, similar to that of other rhodium metalloinsertors. Fluorescence titrations using genomic DNA extracted from various cell lines demonstrate a clear discrimination in fluorescence between those cell lines that are proficient or deficient in mismatch repair. This differential luminescence reflects the sensitive detection of the mismatchrepair-deficient phenotype.
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Affiliation(s)
- Adela Nano
- California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, California 91125, United States
| | - Adam N. Boynton
- California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, California 91125, United States
| | - Jacqueline K. Barton
- California Institute of Technology, Division of Chemistry and Chemical Engineering, Pasadena, California 91125, United States
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20
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Bailis JM, Weidmann AG, Mariano NF, Barton JK. Rhodium metalloinsertor binding generates a lesion with selective cytotoxicity for mismatch repair-deficient cells. Proc Natl Acad Sci U S A 2017; 114:6948-6953. [PMID: 28634291 PMCID: PMC5502648 DOI: 10.1073/pnas.1706665114] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The DNA mismatch repair (MMR) pathway recognizes and repairs errors in base pairing and acts to maintain genome stability. Cancers that have lost MMR function are common and comprise an important clinical subtype that is resistant to many standard of care chemotherapeutics such as cisplatin. We have identified a family of rhodium metalloinsertors that bind DNA mismatches with high specificity and are preferentially cytotoxic to MMR-deficient cells. Here, we characterize the cellular mechanism of action of the most potent and selective complex in this family, [Rh(chrysi)(phen)(PPO)]2+ (Rh-PPO). We find that Rh-PPO binding induces a lesion that triggers the DNA damage response (DDR). DDR activation results in cell-cycle blockade and inhibition of DNA replication and transcription. Significantly, the lesion induced by Rh-PPO is not repaired in MMR-deficient cells, resulting in selective cytotoxicity. The Rh-PPO mechanism is reminiscent of DNA repair enzymes that displace mismatched bases, and is differentiated from other DNA-targeted chemotherapeutics such as cisplatin by its potency, cellular mechanism, and selectivity for MMR-deficient cells.
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Affiliation(s)
- Julie M Bailis
- Department of Oncology Research, Amgen, Inc., South San Francisco, CA 94080;
| | - Alyson G Weidmann
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125
| | - Natalie F Mariano
- Department of Oncology Research, Amgen, Inc., South San Francisco, CA 94080
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125
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21
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Boynton AN, Marcélis L, McConnell AJ, Barton JK. A Ruthenium(II) Complex as a Luminescent Probe for DNA Mismatches and Abasic Sites. Inorg Chem 2017; 56:8381-8389. [PMID: 28657712 PMCID: PMC5516787 DOI: 10.1021/acs.inorgchem.7b01037] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
[Ru(bpy)2(BNIQ)]2+ (BNIQ = Benzo[c][1,7]naphthyridine-1-isoquinoline), which incorporates the sterically expansive BNIQ ligand, is a
highly selective luminescent probe for DNA mismatches and abasic sites,
possessing a 500-fold higher binding affinity toward these destabilized
regions relative to well-matched base pairs. As a result of this higher
binding affinity, the complex exhibits an enhanced steady-state emission
in the presence of DNA duplexes containing a single base mismatch
or abasic site compared to fully well-matched DNA. Luminescence quenching
experiments with Cu(phen)22+ and [Fe(CN)6]3– implicate binding of the complex to
a mismatch from the minor groove via metalloinsertion. The emission
response of the complex to different single base mismatches, binding
preferentially to the more destabilized mismatches, is also consistent
with binding by metalloinsertion. This work shows that high selectivity
toward destabilized regions in duplex DNA can be achieved through
the rational design of a complex with a sterically expansive aromatic
ligand. The luminescent complex [Ru(bpy)2(BNIQ)]2+ selectivity targets mismatched and abasic sites in duplex
DNA and exhibits an enhanced emission intensity in the presence of
these defect sites relative to well-matched base pairs.
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Affiliation(s)
- Adam N Boynton
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Lionel Marcélis
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Anna J McConnell
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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22
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Bonsignore R, Notaro A, Salvo AMP, Spinello A, Fiasconaro G, Terenzi A, Giacalone F, Keppler BK, Giuliano M, Gruttadauria M, Barone G. DNA-Binding and Anticancer Activity of Pyrene-Imidazolium Derivatives. ChemistrySelect 2016. [DOI: 10.1002/slct.201601502] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Riccardo Bonsignore
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
| | - Antonietta Notaro
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
| | - Anna Maria Pia Salvo
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
| | - Angelo Spinello
- CNR-IOM-Democritos National Simulation Center c/o SISSA; via Bonomea 265 34165 Trieste Italy
| | - Giuseppe Fiasconaro
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
| | - Alessio Terenzi
- Institute of Inorganic Chemistry; University of Vienna; Waehringerstr. 42, A- 1090 Vienna Austria
- Research Platform “Translational Cancer Therapy Research”; University of Vienna and Medical University of Vienna; Vienna Austria
| | - Francesco Giacalone
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
| | - Bernhard K. Keppler
- Institute of Inorganic Chemistry; University of Vienna; Waehringerstr. 42, A- 1090 Vienna Austria
- Research Platform “Translational Cancer Therapy Research”; University of Vienna and Medical University of Vienna; Vienna Austria
| | - Michela Giuliano
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
| | - Michelangelo Gruttadauria
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
| | - Giampaolo Barone
- Dipartimento di Scienze e Tecnologie Biologiche; Chimiche e Farmaceutiche; Università degli studi di Palermo; Viale delle Scienze Edificio 17 90128, and Plesso di Biochimica Via del Vespro 129 90127 Palermo Italy
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23
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Kotera N, Granzhan A, Teulade-Fichou MP. Comparative study of affinity and selectivity of ligands targeting abasic and mismatch sites in DNA using a fluorescence-melting assay. Biochimie 2016; 128-129:133-7. [PMID: 27523781 DOI: 10.1016/j.biochi.2016.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/08/2016] [Indexed: 11/29/2022]
Abstract
Recently, several families of small-molecule ligands have been developed to selectively target DNA pairing defects, such as abasic sites and mismatched base pairs, with the aim to interfere with the DNA repair and the template function of the DNA. However, the affinity and selectivity (with respect to well-matched DNA) of these ligands has barely been evaluated in a systematic way. Herein, we report a comparative study of binding affinity and selectivity of a representative panel of 16 ligands targeting abasic sites and a T-T mismatch in DNA, using a fluorescence-monitored melting assay. We demonstrate that bisintercalator-type macrocyclic ligands are characterized by moderate affinity but exceptionally high selectivity with respect to well-matched DNA, whereas other reported ligands show either modest selectivity or rather low affinity in identical conditions.
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Affiliation(s)
- Naoko Kotera
- Institut Curie, PSL Research University, CNRS UMR9187, INSERM U1196, F-91405, Orsay, France; Université Paris Sud, Université Paris-Saclay, CNRS UMR9187, INSERM U1196, F-91405, Orsay, France
| | - Anton Granzhan
- Institut Curie, PSL Research University, CNRS UMR9187, INSERM U1196, F-91405, Orsay, France; Université Paris Sud, Université Paris-Saclay, CNRS UMR9187, INSERM U1196, F-91405, Orsay, France.
| | - Marie-Paule Teulade-Fichou
- Institut Curie, PSL Research University, CNRS UMR9187, INSERM U1196, F-91405, Orsay, France; Université Paris Sud, Université Paris-Saclay, CNRS UMR9187, INSERM U1196, F-91405, Orsay, France
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24
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Li FL, Yang SP, Zhang WH, Liu Q, Yu H, Chen JX, Lang JP. Counterintuitive Solid-State Syntheses of Indium-Thiolate-Phen Cations as Efficient and Selective Fluorescent Biosensors for HIV-1 ds-DNA and Sudan Ebolavirus RNA Sequences. ChemistrySelect 2016. [DOI: 10.1002/slct.201600554] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fu-Ling Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 Jiangsu People's Republic of China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 People's Republic of China
| | - Shui-Ping Yang
- School of Pharmaceutical Sciences; Southern Medical University; Guangzhou 510515 Guangdong People's Republic of China
| | - Wen-Hua Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 Jiangsu People's Republic of China
| | - Quan Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 Jiangsu People's Republic of China
| | - Hong Yu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 Jiangsu People's Republic of China
| | - Jin-Xiang Chen
- School of Pharmaceutical Sciences; Southern Medical University; Guangzhou 510515 Guangdong People's Republic of China
| | - Jian-Ping Lang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 Jiangsu People's Republic of China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 People's Republic of China
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25
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Boynton AN, Marcélis L, Barton JK. [Ru(Me4phen)2dppz](2+), a Light Switch for DNA Mismatches. J Am Chem Soc 2016; 138:5020-3. [PMID: 27068529 DOI: 10.1021/jacs.6b02022] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
[Ru(Me4phen)2dppz](2+) serves as a luminescent "light switch" for single base mismatches in DNA. The preferential luminescence enhancement observed with mismatches results from two factors: (i) the complex possesses a 26-fold higher binding affinity toward the mismatch compared to well-matched base pairs, and (ii) the excited state emission lifetime of the ruthenium bound to the DNA mismatch is 160 ns versus 35 ns when bound to a matched site. Results indicate that the complex binds to the mismatch through a metalloinsertion binding mode. Cu(phen)2(2+) quenching experiments show that the complex binds to the mismatch from the minor groove, characteristic of metalloinsertion. Additionally, the luminescence intensity of the complex with DNA containing single base mismatches correlates with the thermodynamic destabilization of the mismatch, also consistent with binding through metalloinsertion. This complex represents a potentially new early cancer diagnostic for detecting deficiencies in mismatch repair.
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Affiliation(s)
- Adam N Boynton
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Lionel Marcélis
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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26
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Abstract
DNA has been exploited as a biological target of chemotherapeutics since the 1940s. Traditional chemotherapeutics, such as cisplatin and DNA-alkylating agents, rely primarily on increased uptake by rapidly proliferating cancer cells for therapeutic effects, but this strategy can result in off-target toxicity in healthy tissue. Recently, research interests have shifted towards targeted chemotherapeutics, in which a drug targets a specific biological signature of cancer, resulting in selective toxicity towards cancerous cells. Here, we review a family of complexes, termed rhodium metalloinsertors, that selectively target DNA base pair mismatches, a hallmark of mismatch-repair (MMR) deficient cancers. These rhodium metalloinsertors, bind DNA mismatches with high specificity and display high selectively in killing MMR-deficient versus MMR-proficient cells. This cell selectivity is unique for small molecules that bind DNA. Current generations of rhodium metalloinsertors have shown nanomolar potency along with high selectivity towards MMR-deficient cells, and show promise as a foundation for a new family of chemotherapeutics for MMR-deficient cancers.
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Affiliation(s)
- Kelsey M Boyle
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena CA 91125
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena CA 91125
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27
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Iglesias BA, Barata JF, Pereira PM, Girão H, Fernandes R, Tomé JP, Neves MG, Cavaleiro JA. New platinum(II)–bipyridyl corrole complexes: Synthesis, characterization and binding studies with DNA and HSA. J Inorg Biochem 2015; 153:32-41. [DOI: 10.1016/j.jinorgbio.2015.08.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 07/22/2015] [Accepted: 08/20/2015] [Indexed: 01/06/2023]
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28
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Murai T, Nagaya E, Shibahara F, Maruyama T, Nakazawa H. Rhodium(I) and iridium(I) imidazo[1,5-a]pyridine-1-ylalkylalkoxy complexes: Synthesis, characterization and application as catalysts for hydrosilylation of alkynes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.05.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Weidmann AG, Barton JK. A monofunctional platinum complex coordinated to a rhodium metalloinsertor selectively binds mismatched DNA in the minor groove. Inorg Chem 2015; 54:9626-36. [PMID: 26397309 DOI: 10.1021/acs.inorgchem.5b01722] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We report the synthesis and characterization of a bimetallic complex derived from a new family of potent and selective metalloinsertors containing an unusual Rh-O axial coordination. This complex incorporates a monofunctional platinum center containing only one labile site for coordination to DNA, rather than two, and coordinates DNA nonclassically through adduct formation in the minor groove. This conjugate displays bifunctional, interdependent binding of mismatched DNA via metalloinsertion at a mismatch as well as covalent platinum binding. DNA sequencing experiments revealed that the preferred site of platinum coordination is not the traditional N7-guanine site in the major groove, but rather N3-adenine in the minor groove. The complex also displays enhanced cytotoxicity in mismatch repair-deficient and mismatch repair-proficient human colorectal carcinoma cell lines compared to the chemotherapeutic cisplatin, and it triggers cell death via an apoptotic pathway, rather than the necrotic pathway induced by rhodium metalloinsertors.
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Affiliation(s)
- Alyson G Weidmann
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Jacqueline K Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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30
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Shi S, Gao X, Huang H, Zhao J, Yao T. Effect of the Ancillary Ligands on the Spectral Properties and G-Quadruplexes DNA Binding Behavior: A Combined Experimental and Theoretical Study. Chemistry 2015. [DOI: 10.1002/chem.201501830] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Shi S, Xu JH, Gao X, Huang HL, Yao TM. Binding Behaviors for Different Types of DNA G-Quadruplexes: Enantiomers of [Ru(bpy)2(L)](2+) (L=dppz, dppz-idzo). Chemistry 2015; 21:11435-45. [PMID: 26118412 DOI: 10.1002/chem.201501093] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Indexed: 11/11/2022]
Abstract
Polymorphic DNA G-quadruplex recognition has attracted great interest in recent years. The strong binding affinity and potential enantioselectivity of chiral [Ru(bpy)2 (L)](2+) (L=dipyrido[3,2-a:2',3'-c]phenazine, dppz-10,11-imidazolone; bpy=2,2'-bipyridine) prompted this investigation as to whether the two enantiomers, Δ and Λ, can show different effects on diverse structures with a range of parallel, antiparallel and mixed parallel/antiparallel G-quadruplexes. These studies provide a striking example of chiral-selective recognition of DNA G-quadruplexes. As for antiparallel (tel-Na(+)) basket G-quadruplex, the Λ enantiomers bind stronger than the Δ enantiomers. Moreover, the behavior reported here for both enantiomers stands in sharp contrast to B-DNA binding. The chiral selectivity toward mixed parallel/antiparallel (tel-K(+)) G-quadruplex of both compounds is weak. Different loop arrangements can change chiral complex selectivity for both antiparallel and mixed parallel/antiparallel G-quadruplex. Whereas both Δ and Λ isomers bind to parallel G-quadruplexes with comparable affinity, no appreciable stereoselective G-quadruplex binding of the isomers was observed. In addition, different binding stoichiometries and binding modes for Δ and Λ enantiomers were confirmed. The results presented here indicate that chiral selective G-quadruplex binding is not only related to G-quadruplex topology, but also to the sequence and the loop constitution.
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Affiliation(s)
- Shuo Shi
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, Shanghai, 200092 (P.R. China).
| | - Jin-Hong Xu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, Shanghai, 200092 (P.R. China)
| | - Xing Gao
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, Shanghai, 200092 (P.R. China)
| | - Hai-Liang Huang
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, Shanghai, 200092 (P.R. China)
| | - Tian-Ming Yao
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, Shanghai, 200092 (P.R. China).
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32
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Liu S, Liang H, Zhang KY, Zhao Q, Zhou X, Xu W, Huang W. A multifunctional phosphorescent iridium(iii) complex for specific nucleus staining and hypoxia monitoring. Chem Commun (Camb) 2015; 51:7943-6. [DOI: 10.1039/c5cc01978h] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A multifunctional phosphorescent iridium(iii) complex has been synthesized for specific nucleus staining and hypoxia monitoring through time-resolved luminescence imaging.
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Affiliation(s)
- Shujuan Liu
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Hua Liang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Kenneth Yin Zhang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Xiaobo Zhou
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Wenjuan Xu
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
- China
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