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Hou Y, Gan T, Fang T, Zhao Y, Luo Q, Liu X, Qi L, Zhang Y, Jia F, Han J, Li S, Wang S, Wang F. OUP accepted manuscript. Nucleic Acids Res 2022; 50:3070-3082. [PMID: 35258624 PMCID: PMC8989551 DOI: 10.1093/nar/gkac151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 02/16/2022] [Accepted: 02/20/2022] [Indexed: 11/23/2022] Open
Abstract
Pyridostatin (PDS) is a well-known G-quadruplex (G4) inducer and stabilizer, yet its target genes have remained unclear. Herein, applying MS proteomics strategy, we revealed PDS significantly downregulated 22 proteins but upregulated 16 proteins in HeLa cancer cells, of which the genes both contain a number of G4 potential sequences, implying that PDS regulation on gene expression is far more complicated than inducing/stabilizing G4 structures. The PDS-downregulated proteins consequently upregulated 6 proteins to activate cyclin and cell cycle regulation, suggesting that PDS itself is not a potential anticancer agent, at least toward HeLa cancer cells. Importantly, SUB1, which encodes human positive cofactor and DNA lesion sensor PC4, was downregulated by 4.76-fold. Further studies demonstrated that the downregulation of PC4 dramatically promoted the cytotoxicity of trans-[PtCl2(NH3)(thiazole)] (trans-PtTz) toward HeLa cells to a similar level of cisplatin, contributable to retarding the repair of 1,3-trans-PtTz crosslinked DNA lesion mediated by PC4. These findings not only provide new insights into better understanding on the biological functions of PDS but also implicate a strategy for the rational design of novel multi-targeting platinum anticancer drugs via conjugation of PDS as a ligand to the coordination scaffold of transplatin for battling drug resistance to cisplatin.
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Affiliation(s)
- Yinzhu Hou
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
- College of Chemical Science, University of Chinese Academy of Sciences, Yuquan Road, Shijingshan District, 100049 Beijing, P.R. China
| | - Tieliang Gan
- College of Chemical Science, University of Chinese Academy of Sciences, Yuquan Road, Shijingshan District, 100049 Beijing, P.R. China
| | - Tiantian Fang
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
| | - Yao Zhao
- Correspondence may also be addressed to Yao Zhao. Tel: +86 010 62529069;
| | - Qun Luo
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
- College of Chemical Science, University of Chinese Academy of Sciences, Yuquan Road, Shijingshan District, 100049 Beijing, P.R. China
| | - Xingkai Liu
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
- College of Chemical Science, University of Chinese Academy of Sciences, Yuquan Road, Shijingshan District, 100049 Beijing, P.R. China
| | - Luyu Qi
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
- College of Chemical Science, University of Chinese Academy of Sciences, Yuquan Road, Shijingshan District, 100049 Beijing, P.R. China
| | - Yanyan Zhang
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
| | - Feifei Jia
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
| | - Juanjuan Han
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
| | - Shumu Li
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Analytical Chemistry for Living Biosystems; National Centre for Mass Spectrometry in Beijing, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, 100190 Beijing, P.R. China
| | - Shijun Wang
- Correspondence may also be addressed to Shijun Wang. Tel: +86 0531 89628750;
| | - Fuyi Wang
- To whom correspondence should be addressed. Tel: +86 010 62529069;
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Gorle AK, Berners-Price SJ, Farrell NP. Biological relevance of interaction of platinum drugs with O-donor ligands. Inorganica Chim Acta 2019; 495:118974. [PMID: 31354168 PMCID: PMC6660021 DOI: 10.1016/j.ica.2019.118974] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Platinum complexes with S and N-donor small molecule ligands have received much attention with respect to understanding of Pt-protein and Pt-DNA(RNA) interactions in biology. Oxygen-donor ligands have received less attention, partly due to the fact that as a hard Lewis base, oxygen-donor interactions are expected to be less favourable for the soft Lewis acid properties of Pt(II), especially. Yet, it is now clear that for a full understanding of the cellular fate of platinum complexes, a plethora of oxygen-donor interactions are possible, considering extracellular and intracellular concentrations of simple anions in buffer. Further, the importance of the general class of glycans, the third major class of biomolecules after proteins and nucleic acids, contain many specific examples of important biomolecules such as sialic acids and sulphated glycosaminoglycans capable of metal complex interactions. In this contribution we summarise some important kinetic and thermodynamic aspects of platinum-oxygen-donor ligand interactions and their relevance to examples of biomolecular interactions contributing to the overall profile of platinum (and metal complexes in general) biology.
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Affiliation(s)
- Anil K Gorle
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Queensland, 4222, Australia
| | - Susan J Berners-Price
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Queensland, 4222, Australia
| | - Nicholas P Farrell
- Department of Chemistry, Virginia Commonwealth University, Richmond, 23284, Virginia, USA
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Queensland, 4222, Australia
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3
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Cheng L, Li C, Yuan S, Shi H, Zhao L, Zhang L, Arnesano F, Natile G, Liu Y. Reaction of Histone H1 with trans-Platinum Complexes and the Effect on DNA Platination. Inorg Chem 2019; 58:6485-6494. [DOI: 10.1021/acs.inorgchem.9b00686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lanjun Cheng
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chan Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Siming Yuan
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hongdong Shi
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Linhong Zhao
- Institute of Life Sciences, Southeast University, Nanjing, Jiangsu 210096, China
| | - Lei Zhang
- Department of Pharmacy, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Fabio Arnesano
- Dipartimento di Chimica, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy
| | - Giovanni Natile
- Dipartimento di Chimica, University of Bari “A. Moro”, via E. Orabona 4, 70125 Bari, Italy
| | - Yangzhong Liu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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Novakova O, Farrell NP, Brabec V. Translesion DNA synthesis across double-base lesions derived from cross-links of an antitumor trinuclear platinum compound: primer extension, conformational and thermodynamic studies. Metallomics 2019; 10:132-144. [PMID: 29242879 DOI: 10.1039/c7mt00266a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polynuclear platinum complexes represent a unique structural class of DNA-binding agents of biological significance. They contain at least two platinum coordinating units bridged by a linker, which means that the formation of double-base lesions (cross-links) in DNA is possible. Here, we show that the lead compound, bifunctional [{trans-PtCl(NH3)2}2μ-trans-Pt(NH3)2{H2N(CH2)6NH2}2]4+ (Triplatin or BBR3464), forms in DNA specific double-base lesions which affect the biophysical and biochemical properties of DNA in a way fundamentally different compared to the analogous double-base lesions formed by two adducts of monofunctional chlorodiethylenetriamineplatinum(ii) chloride (dienPt). We find concomitantly that translesion DNA synthesis by the model A-family polymerase, the exonuclease deficient Klenow fragment, across the double-base lesions derived from the intrastrand CLs of Triplatin was markedly less extensive than that across the two analogous monofunctional adducts of dienPt. Collectively, these data provide convincing support for the hypothesis that the central noncovalent tetraamine platinum linker of Triplatin, capable of hydrogen-bonding and electrostatic interactions with DNA and bridging the two platinum adducts, represents an important factor responsible for the markedly lowered tolerance of DNA double-base adducts of Triplatin by DNA polymerases.
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Affiliation(s)
- O Novakova
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, CZ-61265 Brno, Czech Republic.
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Wang Y, Du Z, Zheng W, Wu K, Xu D, Luo Q, Zhao Y, Han J, Liu Y, Wang F. Deciphering of interactions between platinated DNA and HMGB1 by hydrogen/deuterium exchange mass spectrometry. Dalton Trans 2018; 46:6187-6195. [PMID: 28426082 DOI: 10.1039/c7dt00275k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A high mobility group box 1 (HMGB1) protein has been reported to recognize both 1,2-intrastrand crosslinked DNA by cisplatin (1,2-cis-Pt-DNA) and monofunctional platinated DNA using trans-[PtCl2(NH3)(thiazole)] (1-trans-PtTz-DNA). However, the molecular basis of recognition between the trans-PtTz-DNA and HMGB1 remains unclear. In the present work, we described a hydrogen/deuterium exchange mass spectrometry (HDX-MS) method in combination with docking simulation to decipher the interactions of platinated DNA with domain A of HMGB1. The global deuterium uptake results indicated that 1-trans-PtTz-DNA bound to HMGB1a slightly tighter than the 1,2-cis-Pt-DNA. The local deuterium uptake at the peptide level revealed that the helices I and II, and loop 1 of HMGB1a were involved in the interactions with both platinated DNA adducts. However, docking simulation disclosed different H-bonding networks and distinct DNA-backbone orientations in the two Pt-DNA-HMGB1a complexes. Moreover, the Phe37 residue of HMGB1a was shown to play a key role in the recognition between HMGB1a and the platinated DNAs. In the cis-Pt-DNA-HMGB1a complex, the phenyl ring of Phe37 intercalates into a hydrophobic notch created by the two platinated guanines, while in the trans-PtTz-DNA-HMGB1a complex the phenyl ring appears to intercalate into a hydrophobic crevice formed by the platinated guanine and the opposite adenine in the complementary strand, forming a penta-layer π-π stacking associated with the adjacent thymine and the thiazole ligand. This work demonstrates that HDX-MS associated with docking simulation is a powerful tool to elucidate the interactions between platinated DNAs and proteins.
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Affiliation(s)
- Yuanyuan Wang
- Beijing National Laboratory for Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
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6
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Brabec V, Hrabina O, Kasparkova J. Cytotoxic platinum coordination compounds. DNA binding agents. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.04.013] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Study on electronic properties, thermodynamic and kinetic parameters of the selected platinum(II) derivatives interacting with guanine. J Inorg Biochem 2017; 172:100-109. [DOI: 10.1016/j.jinorgbio.2017.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 04/06/2017] [Accepted: 04/08/2017] [Indexed: 11/23/2022]
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8
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Ruthenium(II) piano stool coordination compounds with aminomethylphosphanes: Synthesis, characterisation and preliminary biological study in vitro. J Inorg Biochem 2017; 170:178-187. [PMID: 28259056 DOI: 10.1016/j.jinorgbio.2017.02.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 02/15/2017] [Accepted: 02/17/2017] [Indexed: 11/21/2022]
Abstract
Reaction of {[Ru(η6-p-cymene)Cl]2(μ-Cl)2} (1) with aminomethylphosphane derived from morpholine (P{CH2N(CH2CH2)2O}3 (A), PPh2{CH2N(CH2CH2)2O} (B)) or piperazine (P{CH2N(CH2CH2)2NCH2CH3}3 (C), PPh2{CH2N(CH2CH2)2NCH2CH3} (D)) results in four new piano stool ruthenium(II) coordination compounds: [Ru(η6-p-cymene)Cl2(A)] (2A), [Ru(η6-p-cymene)Cl2(B)] (2B), [Ru(η6-p-cymene)Cl2(C)] (2C) and [Ru(η6-p-cymene)Cl2(D)] (2D). Every complex was fully characterized using spectroscopic methods (1H, 13C{1H}, 31P{1H} NMR and ESI-MS), elemental analysis, X-ray single crystal diffraction and DFT calculations. Preliminary studies of in vitro cytotoxicity on the A549 (human lung adenocarcinoma) and MCF7 (human breast adenocarcinoma) cell lines revealed 2A-2D activity in the same order of magnitude as in the case of cisplatin. Additionally, the study confirmed the ability of 2A-2D to interact with DNA helix and transferrin.
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Hrabina O, Kasparkova J, Suchankova T, Novohradsky V, Guo Z, Brabec V. Unique structural properties of DNA interstrand cross-links formed by a new antitumor dinuclear Pt(ii) complex. Metallomics 2017; 9:494-500. [DOI: 10.1039/c7mt00052a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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O'Flaherty DK, Wilds CJ. Preparation of Intrastrand {G}O(6) -Alkylene-O(6) {G} Cross-Linked Oligonucleotides. ACTA ACUST UNITED AC 2016; 66:5.17.1-5.17.24. [PMID: 27584704 DOI: 10.1002/cpnc.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This unit describes the preparation O(6) -2'-deoxyguanosine-butylene-O(6) -2'-deoxyguanosine dimer phosphoramidites and precursors for incorporation of site-specific intrastrand cross-links (IaCL) into DNA oligonucleotides. Protected 2'-deoxyguanosine dimers are produced using the Mitsunobu reaction. IaCL DNA containing the intradimer phosphodiester are first chemically phosphorylated, followed by a ring-closing reaction using the condensing reagent 1-(2-mesitylenesulfonyl)-3-nitro-1H-1,2,4-triazole. Phosphoramidites are incorporated into oligonucleotides by solid-phase synthesis and standard deprotection and cleavage protocols are employed. This approach allows for the preparation of IaCL DNA substrates in amounts and purity amenable for biophysical characterization, and biochemical studies as substrates to investigate DNA repair and bypass pathways. © 2016 by John Wiley & Sons, Inc.
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Affiliation(s)
- Derek K O'Flaherty
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada
| | - Christopher J Wilds
- Department of Chemistry and Biochemistry, Concordia University, Montréal, Québec, Canada
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O'Flaherty DK, Wilds CJ. O
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-Alkylguanine DNA Alkyltransferase Repair Activity Towards Intrastrand Cross-Linked DNA is Influenced by the Internucleotide Linkage. Chem Asian J 2016; 11:576-83. [PMID: 26692563 DOI: 10.1002/asia.201501253] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Derek K. O'Flaherty
- Department of Chemistry&Biochemistry; Concordia University; 7141 Sherbrooke St. West Montréal Québec (Canada
| | - Christopher J. Wilds
- Department of Chemistry&Biochemistry; Concordia University; 7141 Sherbrooke St. West Montréal Québec (Canada
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Wang X, Xu J, Liu C, Chen Y. Specific interaction of platinated DNA and proteins by surface plasmon resonance imaging. RSC Adv 2016. [DOI: 10.1039/c5ra27719a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A surface plasmon resonance imaging method to differentiate the interaction between the protein human high mobility group box 1 or human nuclear protein positive cofactor 4 (PC4) and DNAs has been developed.
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Affiliation(s)
- Xiao Wang
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Jiying Xu
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Chanjuan Liu
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yi Chen
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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Hu S, Cui X, He W, Chen X, Gu Z, Zhao J, Zeng G, Shi Z, Zhu L, Nie H. Synthesis, Structural Characterization and Preliminary Biological Studies of Several Heterocyclic Transition Metal Carbonyl Complexes. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500592] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Qiu H, Rong J, Li S, Tong W, Zhang T, Yang L. Preparation, Crystal Structure, Thermal Decomposition, and DFT Calculation of a Novel 3D Infinite Structure Coordination Polymer [Na 2(H 2O) 4(ITDO) 2] n(ITDO = 2 H-imidazo-[4,5-e]- as-1,2,4-triazine-2,7-dihydro-3,6-dione). Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tsotsoros SD, Qu Y, Farrell NP. The reaction of dichlorodiammineplatinum(II), [PtCl2(NH3)2], isomers with zinc fingers. J Inorg Biochem 2015; 143:117-22. [DOI: 10.1016/j.jinorgbio.2014.12.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 12/02/2014] [Accepted: 12/02/2014] [Indexed: 11/24/2022]
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New iron(II) cyclopentadienyl derivative complexes: Synthesis and antitumor activity against human leukemia cancer cells. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.01.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Du Z, Luo Q, Yang L, Bing T, Li X, Guo W, Wu K, Zhao Y, Xiong S, Shangguan D, Wang F. Mass Spectrometric Proteomics Reveals that Nuclear Protein Positive Cofactor PC4 Selectively Binds to Cross-Linked DNA by a trans-Platinum Anticancer Complex. J Am Chem Soc 2014; 136:2948-51. [DOI: 10.1021/ja410678y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Zhifeng Du
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Qun Luo
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Liping Yang
- Cancer
Research Center, Tumor Hospital Affiliated to Nantong University, Nantong 226361, Jiangsu, PR China
| | - Tao Bing
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Xianchan Li
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Wei Guo
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Kui Wu
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Yao Zhao
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Shaoxiang Xiong
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Dihua Shangguan
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Fuyi Wang
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
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Xu D, Min Y, Cheng Q, Shi H, Wei K, Arnesano F, Natile G, Liu Y. Chemical and cellular investigations of trans-ammine-pyridine-dichlorido-platinum(II), the likely metabolite of the antitumor active cis-diammine-pyridine-chorido-platinum(II). J Inorg Biochem 2013; 129:15-22. [DOI: 10.1016/j.jinorgbio.2013.07.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 07/30/2013] [Accepted: 07/30/2013] [Indexed: 11/25/2022]
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Musetti C, Nazarov AA, Farrell NP, Sissi C. DNA Reactivity Profile of trans-Platinum Planar Amine Derivatives. ChemMedChem 2011; 6:1283-90. [DOI: 10.1002/cmdc.201100032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 02/18/2011] [Indexed: 12/22/2022]
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Martínez A, Suárez J, Shand T, Magliozzo RS, Sánchez-Delgado RA. Interactions of arene-Ru(II)-chloroquine complexes of known antimalarial and antitumor activity with human serum albumin (HSA) and transferrin. J Inorg Biochem 2011; 105:39-45. [PMID: 21113330 PMCID: PMC2990986 DOI: 10.1016/j.jinorgbio.2010.09.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The interactions of π-arene-Ru(II)-chloroquine complexes with human serum albumin (HSA), apotransferrin and holotransferrin have been studied by circular dichroism (CD) and UV-Visible spectroscopies, together with isothermal titration calorimetry (ITC). The data for [Ru(η(6)-p-cymene)(CQ)(H(2)O)Cl]PF(6) (1), [Ru(η(6)-benzene)(CQ)(H(2)O)Cl]PF(6) (2), [Ru(η(6)-p-cymene)(CQ)(H(2)O)(2)][PF(6)](2) (3), [Ru(η(6)-p-cymene)(CQ)(en)][PF(6)](2) (4), [Ru(η(6)-p-cymene)(η(6)-CQDP)][BF(4)](2) (5) (CQ: chloroquine; DP: diphosphate; en: ethylenediamine), in comparison with CQDP and [Ru(η(6)-p-cymene)(en)Cl][PF(6)] (6) as controls demonstrate that 1, 2, 3, and 5, which contain exchangeable ligands, bind to HSA and to apotransferrin in a covalent manner. The interaction did not affect the α-helical content in apotransferrin but resulted in a loss of this type of structure in HSA. The binding was reversed in both cases by a decrease in pH and in the case of the Ru-HSA adducts, also by addition of chelating agents. A weaker interaction between complexes 4 and 6 and HSA was measured by ITC but was not detectable spectroscopically. No interactions were observed for complexes 4 and 6 with apotransferrin or for CQDP with either protein. The combined results suggest that the arene-Ru(II)-chloroquine complexes, known to be active against resistant malaria and several lines of cancer cells, also display a good transport behavior that makes them good candidates for drug development.
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Affiliation(s)
- Alberto Martínez
- Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, NY 11210, USA
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Martínez A, Rajapakse CS, Varela-Ramírez A, Lema C, Aguilera RJ, Sánchez-Delgado RA. Arene-Ru(II)-chloroquine complexes interact with DNA, induce apoptosis on human lymphoid cell lines and display low toxicity to normal mammalian cells. J Inorg Biochem 2010; 104:967-77. [PMID: 20605217 PMCID: PMC2910123 DOI: 10.1016/j.jinorgbio.2010.05.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 05/06/2010] [Accepted: 05/10/2010] [Indexed: 01/01/2023]
Abstract
The complexes [Ru(eta(6)-p-cymene)(CQ)Cl(2)] (1), [Ru(eta(6)-benzene)(CQ)Cl(2)] (2), [Ru(eta(6)-p-cymene)(CQ)(H(2)O)(2)][BF(4)](2) (3), [Ru(eta(6)-p-cymene)(en)(CQ)][PF(6)](2) (4), [Ru(eta(6)-p-cymene)(eta(6)-CQDP)][BF(4)](2) (5) (CQ = chloroquine base; CQDP = chloroquine diphosphate; en = ethylenediamine) interact with DNA to a comparable extent to that of CQ and in analogous intercalative manner with no evidence for any direct contribution of the metal, as shown by spectrophotometric and fluorimetric titrations, thermal denaturation measurements, circular dichroism spectroscopy and electrophoresis mobility shift assays. Complexes 1-5 induced cytotoxicity in Jurkat and SUP-T1 cancer cells primarily via apoptosis. Despite the similarities in the DNA binding behavior of complexes 1-5 with those of CQ the antitumor properties of the metal drugs do not correlate with those of CQ, indicating that DNA is not the principal target in the mechanism of cytotoxicity of these compounds. Importantly, the Ru-CQ complexes are generally less toxic toward normal mouse splenocytes and human foreskin fibroblast cells than the standard antimalarial drug CQDP and therefore this type of compound shows promise for drug development.
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Affiliation(s)
- Alberto Martínez
- Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, NY 11210
| | - Chandima S.K. Rajapakse
- Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, NY 11210
| | - Armando Varela-Ramírez
- Department of Biological Sciences, Biosciences Research Building, University of Texas at El Paso, 500 West University Ave., El Paso, TX 79968
| | - Carolina Lema
- Department of Biological Sciences, Biosciences Research Building, University of Texas at El Paso, 500 West University Ave., El Paso, TX 79968
| | - Renato J. Aguilera
- Department of Biological Sciences, Biosciences Research Building, University of Texas at El Paso, 500 West University Ave., El Paso, TX 79968
| | - Roberto A. Sánchez-Delgado
- Chemistry Department, Brooklyn College and The Graduate Center, The City University of New York, 2900 Bedford Avenue, Brooklyn, NY 11210
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22
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Unusual DNA binding modes for metal anticancer complexes. Biochimie 2009; 91:1198-211. [PMID: 19344743 DOI: 10.1016/j.biochi.2009.03.017] [Citation(s) in RCA: 169] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2009] [Accepted: 03/25/2009] [Indexed: 11/22/2022]
Abstract
DNA is believed to be the primary target for many metal-based drugs. For example, platinum-based anticancer drugs can form specific lesions on DNA that induce apoptosis. New platinum drugs can be designed that have novel modes of interaction with DNA, such as the trinuclear platinum complex BBR3464. Also it is possible to design inert platinum(IV) pro-drugs which are non-toxic in the dark, but lethal when irradiated with certain wavelengths of light. This gives rise to novel DNA lesions which are not as readily repaired as those induced by cisplatin, and provides the basis for a new type of photoactivated chemotherapy. Finally, newly emerging ruthenium(II) organometallic complexes not only bind to DNA coordinatively, but also by H-bonding and hydrophobic interactions triggered by the introduction of extended arene rings into their versatile structures. Intriguingly osmium (the heavier congener of ruthenium) reacts differently with DNA but can also give rise to highly cytotoxic organometallic complexes.
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Abstract
Substitution of NH(3) by a range of amines in trans-[PtCl(2)(NH(3))(2)] produces compounds with cytotoxicity significantly improved over the parent transplatin and in many cases equivalent to that of cisplatin. This microreview summarizes the chemistry and biology of trans-platinum compounds containing principally planar amines and succinctly reviews the current status of anticancer relevance of the trans-platinum geometry. The nature of bifunctional DNA adducts (intrastrand, interstrand) is remarkably dependent on the nature of the amine. Further, the stability of monofunctional adducts allows for competitive production of DNA-protein crosslinks and overall the results suggest that the trans-platinum chemotype may offer significant potential for design of selective DNA-protein crosslinking agents. A subset of proteins known to bind to DNA modified by trans-platinum is that comprised of zinc fingers - model studies show the potential for formation of heteronuclear thiolate-bridged species as precedent for zinc displacement from the biomolecule.
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Affiliation(s)
- Sheena M Aris
- Department of Chemistry, Virginia Commonwealth University 1001 W. Main St., Richmond VA 23284-2006
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24
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Aris SM, Knott KM, Yang X, Gewirtz DA, Farrell NP. Modulation of transplanaramine platinum complex reactivity by systematic modification of carrier and leaving groups. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.01.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bradác O, Zimmermann T, Burda JV. Comparison of the electronic properties, and thermodynamic and kinetic parameters of the aquation of selected platinum(II) derivatives with their anticancer IC50 indexes. J Mol Model 2008; 14:705-16. [PMID: 18322710 DOI: 10.1007/s00894-008-0285-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Accepted: 02/06/2008] [Indexed: 11/28/2022]
Abstract
Three potential anticancer agents {trans-[PtCl(2)(NH(3))(thiazole)], cis-[PtCl(2)(NH(3))(piperidine)], and PtCl(2)(NH(3))(cyclohexylamine) (JM118)} were explored and compared with cisplatin and the inactive [PtCl(dien)](+) complex. Basic electronic properties, bonding and stabilization energies were determined, and thermodynamic and kinetic parameters for the aquation reaction were estimated at the B3LYP/6-311++G(2df,2pd) level of theory. Since the aquation process represents activation of these agents, the obtained rate constants were compared with the experimental IC(50) values for several tumor cells. Despite the fact that the processes in which these drugs are involved and the way in which they affect cells are very complex, some correlations can be deduced.
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Affiliation(s)
- Ondrej Bradác
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, 121 16, Prague 2, Czech Republic
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27
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Amado AM, Fiuza SM, Marques MPM, Batista de Carvalho LAE. Conformational and vibrational study of platinum(II) anticancer drugs: cis-diamminedichloroplatinum (II) as a case study. J Chem Phys 2007; 127:185104. [DOI: 10.1063/1.2787528] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Malina J, Novakova O, Vojtiskova M, Natile G, Brabec V. Conformation of DNA GG intrastrand cross-link of antitumor oxaliplatin and its enantiomeric analog. Biophys J 2007; 93:3950-62. [PMID: 17704160 PMCID: PMC2084227 DOI: 10.1529/biophysj.107.116996] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Downstream processes that discriminate between DNA adducts of a third generation platinum antitumor drug oxaliplatin and conventional cisplatin are believed to be responsible for the differences in their biological effects. These different biological effects are explained by the ability of oxaliplatin to form DNA adducts more efficient in their biological effects. In this work conformation, recognition by HMG domain protein and DNA polymerization across the major 1,2-GG intrastrand cross-link formed by cisplatin and oxaliplatin in three sequence contexts were compared with the aid of biophysical and biochemical methods. The following major differences in the properties of the cross-links of oxaliplatin and cisplatin were found: i), the formation of the cross-link by oxaliplatin is more deleterious energetically in all three sequence contexts; ii), the cross-link of oxaliplatin bends DNA slightly but systematically less in all sequence contexts tested; iii), the affinity of HMG domain protein to the cross-link of oxaliplatin is considerably lower independent of the sequence context; and iv), the Klenow fragment of DNA polymerase I pauses considerably more at the cross-link of oxaliplatin in all sequence contexts tested. We have also demonstrated that the chirality at the carrier ligand of oxaliplatin can affect its biological effects.
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Affiliation(s)
- Jaroslav Malina
- Institute of Biophysics, Academy of Sciences of the Czech Republic, CZ-61265 Brno, Czech Republic
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29
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Affiliation(s)
- Yongwon Jung
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
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30
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Aris SM, Gewirtz DA, Ryan JJ, Knott KM, Farrell NP. Promotion of DNA strand breaks, interstrand cross-links and apoptotic cell death in A2780 human ovarian cancer cells by transplatinum planar amine complexes. Biochem Pharmacol 2007; 73:1749-57. [PMID: 17418817 PMCID: PMC2716119 DOI: 10.1016/j.bcp.2007.02.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2006] [Revised: 02/22/2007] [Accepted: 02/23/2007] [Indexed: 11/23/2022]
Abstract
Cisplatin is one of the primary drugs utilized in the treatment of ovarian cancer. However, despite the initial effectiveness of chemotherapy in suppressing this disease, drug resistance almost invariably develops and cures are relatively rare. While it is generally thought that only compounds of the cis geometry express antitumor activity, a number of transplatinum derivates have shown preclinical promise. The current work investigates the influence of transplanaramine (TPA) compounds of structure trans-[Pt (O(2)CR)(2) (L) (L')], (L=NH(3), L'=pyridine, quinoline, isoquinoline; L=L'=pyridine; R=H, CH(3), CH(2)OH, etc.) (with a focus on the contribution of the carboxylate leaving group to drug action) on growth and viability of A2780 human ovarian carcinoma cells as well as their putative mechanism(s) of cytotoxicity. The compounds, as a class, induce cell death through caspase-dependent apoptosis, with activation of both caspase 3 and caspase 9 and concomitant PARP cleavage. The trans-platinum compounds tested show induction of p53 as well as time dependent gammaH2AX induction, consistent with the promotion of DNA lesions. trans-[Pt(O(2)CH)(2)(NH(3))(4-pic)] can be shown to promote significant DNA strand breaks and DNA interstrand cross-linking. The enhanced cytotoxicity of trans-[Pt(O(2)CH)(2)(NH(3))(4-pic)] compared to its isostructural -O(2)CCH(3) and -O(2)CCH(2)OH analogs may be a consequence of its accelerated cellular accumulation, increased hydrolytic activation, interstrand cross-linking and abortive efforts by the cell to repair the cross linked DNA.
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Affiliation(s)
- Sheena M. Aris
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA
| | - David A. Gewirtz
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA
- To whom correspondence should be addressed at Massey Cancer Center, Virginia Commonwealth University, P.O. Box 980035, Richmond, VA 23298, Phone: 804-828-9523, Fax: 804-827-1134, e-mail:
| | - John J. Ryan
- Department of Biology, Virginia Commonwealth University, Richmond, VA
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Chválová K, Brabec V, Kašpárková J. Mechanism of the formation of DNA-protein cross-links by antitumor cisplatin. Nucleic Acids Res 2007; 35:1812-21. [PMID: 17329374 PMCID: PMC1874601 DOI: 10.1093/nar/gkm032] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
DNA–protein cross-links are formed by various DNA-damaging agents including antitumor platinum drugs. The natures of these ternary DNA–Pt–protein complexes (DPCLs) can be inferred, yet much remains to be learned about their structures and mechanisms of formation. We investigated the origin of these DPCLs and their cellular processing on molecular level using gel electrophoresis shift assay. We show that in cell-free media cisplatin [cis-diamminedichloridoplatinum(II)] forms DPCLs more effectively than ineffective transplatin [trans-diamminedichloridoplatinum(II)]. Mechanisms of transformation of individual types of plain DNA adducts of the platinum complexes into the DPCLs in the presence of several DNA-binding proteins have been also investigated. The DPCLs are formed by the transformation of DNA monofunctional and intrastrand cross-links of cisplatin. In contrast, interstrand cross-links of cisplatin and monofunctional adducts of transplatin are stable in presence of the proteins. The DPCLs formed by cisplatin inhibit DNA polymerization or removal of these ternary lesions from DNA by nucleotide excision repair system more effectively than plain DNA intrastrand or monofunctional adducts. Thus, the bulky DNA–protein cross-links formed by cisplatin represent a more distinct and persisting structural motif recognized by the components of downstream cellular systems processing DNA damage considerably differently than the plain DNA adducts of this metallodrug.
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Affiliation(s)
| | | | - Jana Kašpárková
- *To whom correspondence should be addressed. +420 541517174+420 541240499
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32
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Moriarity B, Nováková O, Farrell N, Brabec V, Kaspárková J. 1,2-GG intrastrand cross-link of antitumor dinuclear bifunctional platinum compound with spermidine linker inhibits DNA polymerization more effectively than the cross-link of conventional cisplatin. Arch Biochem Biophys 2006; 459:264-72. [PMID: 17224122 DOI: 10.1016/j.abb.2006.11.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2006] [Revised: 11/26/2006] [Accepted: 11/29/2006] [Indexed: 12/13/2022]
Abstract
In order to learn more about the molecular basis for the inhibition of DNA replication produced by antitumor platinum drugs, we investigated DNA polymerization using DNA templates site-specifically modified with the 1,2-GG intrastrand cross-link of dinuclear bifunctional [{trans-PtCl(NH(3))(2)}(2){l-spermidine-N1,N8}](3+)(BBR3571) or conventional mononuclear cisplatin. These cross-links which have the same nature, but differ in the size and character of the conformational alteration induced in double-helical DNA, were analyzed for bypass ability with reverse transcriptase of human immunodeficiency virus type 1 and Klenow fragment of DNA polymerase I deficient in exonuclease activity. We found that the 1,2-GG intrastrand CL of BBR3571 inhibited DNA translesion synthesis markedly more than the same adduct of cisplatin. This result was explained by a larger size of the cross-link of BBR3571 and by a flexibility induced in DNA by this cross-link which can make the productive binding of this adduct at the polymerase site more difficult.
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Affiliation(s)
- Branden Moriarity
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
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33
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Pavelka M, Burda JV. Pt-bridges in various single-strand and double-helix DNA sequences. DFT and MP2 study of the cisplatin coordination with guanine, adenine, and cytosine. J Mol Model 2006; 13:367-79. [PMID: 17024406 DOI: 10.1007/s00894-006-0151-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2005] [Accepted: 06/23/2006] [Indexed: 10/24/2022]
Abstract
In this study, various platinum cross-links in DNA bases were explored. Some of these structures occur in many cis/trans-platinated double-helixes or single-stranded adducts. However, in the models studied, no steric hindrance from sugar-phosphate backbone or other surroundings is considered. Such restrictions can change the bonding picture partially but hopefully the basic energy characteristics will not be changed substantially. The optimization of the structures explored was performed at the DFT level with the B3LYP functional and the 6-31G(d) basis set. Perturbation theory at the MP2/6-31++G(2df,2pd) level was used for the single-point energy and 6-31+G(d) basis set for the electron-property analyses. It was found that the most stable structures are the diguanine complexes followed by guanine-cytosine Pt-cross-links, ca 5 kcal mol(-1) less stable. The adenine-containing complexes are about 15 kcal mol(-1) below the stability of diguanine structures. This stability order was also confirmed by the BE of Pt-N bonds. For a detailed view on dative and electrostatic contributions to Pt-N bonds, Natural Population Analysis, determination of electrostatic potentials, and canonical Molecular Orbitals description of the examined systems were used.
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Affiliation(s)
- Matej Pavelka
- Faculty of Mathematics and Physics, Department of Chemical Physics and Optics, Charles University, Ke Karlovu 3, 121 16, Prague 2, Czech Republic
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Kaspárková J, Nováková O, Vrána O, Intini F, Natile G, Brabec V. Molecular Aspects of Antitumor Effects of a New Platinum(IV) Drug. Mol Pharmacol 2006; 70:1708-19. [PMID: 16896071 DOI: 10.1124/mol.106.027730] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The new platinum(IV) complex cis,trans,cis-[PtCl(2)(CH(3)COO)(2)-(NH(3))(1-adamantylamine)] [adamplatin(IV)] seems promising for the perspective application in therapy of corresponding tumors. It is therefore of great interest to understand details of mechanisms underlying its biological efficacy. Cellular uptake of the drug, alterations in the target DNA induced by platinum drugs along with processing of platinum-induced damage to DNA and drug inactivation by sulfur-containing compounds belong to major pharmacological factors affecting antitumor effects of platinum compounds. We examined in the present work the significance of these factors in the mechanism of antitumor effects of adamplatin(IV) and compared the results with those of the parallel studies performed with "conventional" cisplatin. The results show that deactivation of adamplatin(IV) by sulfur-containing compounds (such as glutathione or metallothioneins) is likely to play a less significant role in the mechanism of resistance of tumor cells to adamplatin(IV) in contrast to the role of these reactions in the effects of cisplatin. Moreover, the treatment of tumor cells with adamplatin(IV) does not result in DNA modifications that would be markedly different from those produced by cisplatin. In contrast, the effects of other factors, such as enhanced accumulation of the drug in cells, strong inhibition of DNA polymerization by these adducts, lowered DNA repair, and DNA-protein cross-linking are different from the effects of these factors in the mechanism underlying activity of cisplatin. Hence, the differences between effects of adamplatin(IV) and cisplatin observed in the present work on molecular level may help understand the unique activity of adamplatin(IV).
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Affiliation(s)
- Jana Kaspárková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Kralovopolska 135, CZ-61265 Brno, Czech Republic
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Anzellotti A, Stefan S, Gibson D, Farrell N. Donor atom preferences in substitution reactions of trans-platinum mononucleobase compounds: Implications for DNA–protein selectivity. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.12.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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