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Molecular dynamics simulation study of DNA conformation changes caused by the dinuclear platinum(II) complexes with the bisphosphonate group. J Inorg Biochem 2023; 243:112179. [PMID: 36989944 DOI: 10.1016/j.jinorgbio.2023.112179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/19/2023]
Abstract
Bisphosphonate (BP) has been widely used as a bone-targeting group, and the BP-modified platinum(II) complexes have shown potential to as anticancer drugs against bone-related diseases, such as osteosarcoma. DNA conformation changes induced by the BP-modified dinuclear platinum(II) complexes have been investigated using molecular dynamics simulations. The results indicated that the BP-modified dinuclear platinum(II) complexes coordinated to DNA results in DNA structural distortions, including twisting, unwinding and bending. Furthermore, the rigidity of the bridging linkers in the BP-modified platinum(II) complex may induce more significant DNA structural distortions with same spans. The results provide the detail information of DNA conformational changes induced by the BP-modified platinum(II) complexes with different flexibility of bridging linkers, and are helpful for exploring novel platinum-based antitumor drugs.
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Li C, Zhao X, Liu W, Yin F, Hu J, Zhang G, Chen G. DNA Structural Distortions Induced by a Monofunctional Trinuclear Platinum Complex with Various Cross-Links Using Molecular Dynamics Simulation. J Chem Inf Model 2020; 60:1700-1708. [PMID: 32096984 DOI: 10.1021/acs.jcim.0c00002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The monofunctional trinuclear platinum complex (MTPC), as a promising antitumor agent, can form MTPC-DNA adducts via bifunctional and trifunctional cross-links. Molecular dynamics simulations were used to investigate DNA structural distortions of the MTPC-DNA adducts. MTPC coordinating to DNA results in the decrease of base-pair thermal stability and DNA structural distortions. It is found that there are more significant DNA structural distortions in the trifunctional cross-link than in the bifunctional cross-link, in the 1,4-GG than in the 1,3-GG cross-link, and in the intrastrand than in the interstrand cross-link with the same spans. The results provide a better understanding of DNA structural distortions induced by MTPC with various cross-links at the nucleotide level and are helpful for exploring novel Pt-based anticancer drugs.
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Affiliation(s)
- Chaoqun Li
- Hebei Key Laboratory of Heterocyclic Compounds, College of Chemistry, Chemical Engineering and Materials, Handan University, Handan, 056005 Hebei province, China
| | - Xiaojia Zhao
- Hebei Key Laboratory of Heterocyclic Compounds, College of Chemistry, Chemical Engineering and Materials, Handan University, Handan, 056005 Hebei province, China
| | - Wei Liu
- College of Chemistry, Beijing Normal University, 19# Xinjiekouwai Street, Beijing 100875, China
| | - Fangqian Yin
- Hebei Key Laboratory of Heterocyclic Compounds, College of Chemistry, Chemical Engineering and Materials, Handan University, Handan, 056005 Hebei province, China
| | - Junping Hu
- Hebei Key Laboratory of Heterocyclic Compounds, College of Chemistry, Chemical Engineering and Materials, Handan University, Handan, 056005 Hebei province, China
| | - Guangjie Zhang
- Hebei Key Laboratory of Heterocyclic Compounds, College of Chemistry, Chemical Engineering and Materials, Handan University, Handan, 056005 Hebei province, China
| | - Guangju Chen
- College of Chemistry, Beijing Normal University, 19# Xinjiekouwai Street, Beijing 100875, China
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Yang J, Chen J, Li Z. Structural Basis for the Structure–Activity Behaviour of Oxaliplatin and its Enantiomeric Analogues: A Molecular Dynamics Study of Platinum-DNA Intrastrand Crosslink Adducts. Aust J Chem 2016. [DOI: 10.1071/ch15624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The discrimination of Pt-GG adducts by mismatch repair proteins, DNA damage-recognition proteins, and translation DNA polymerases was thought to be vital in determining the toxicity, efficacy, and mutagenicity of platinum anti-tumour drugs. Studies on cis-diammine-Pt-GG (from cisplatin and carboplatin) and trans-R,R-diaminocyclohexane (DACH)-Pt-GG indicated that these proteins recognized the differences in conformation and conformational dynamics of Pt-DNA complexes. However, the structural basis of enantiomeric DACH-Pt-GG forms is unclear. Molecular dynamics simulations results presented here reveal that the conformational dynamics between trans-R,R-DACH-Pt-GG, trans-S,S-DACH-Pt-GG, cis-DACH-Pt-GG and undamaged DNA are distinct and depend on the chirality of DACH though their major conformations are similar. Trans-DACH-Pt was found to be energetically favoured over cis-DACH-Pt to form DNA adducts. Moreover, oxaliplatin and its cis-DACH analogues were found to preferentially form hydrogen bonds on the 3′ side of the Pt-GG adduct, whereas the S,S-DACH-Pt preferred the 5′ side. A three-centre hydrogen bond formed between cis1-DACH-Pt and DNA was observed, and the differences in hydrogen bond formation are highly correlated with differences in DNA conformational dynamics. Based on these results, it is suggested that the different bioactivities of oxaliplatin and its enantiomeric analogues were controlled by the difference in hydrogen bonds formation dynamics between DNA and the Pt moiety. Our molecular dynamics approach was demonstrated to be applicable to the study of stereoisomer conformations of platinum-DNA model, thereby suggesting its potential application as a tool for the study and design of new effective platinum-based drugs.
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Yue H, Yang B, Wang Y, Chen G. Investigations of the binding of [Pt2(DTBPA)Cl2](II) and [Pt2(TPXA)Cl2](II) to DNA via various cross-linking modes. Int J Mol Sci 2013; 14:19556-86. [PMID: 24077126 PMCID: PMC3821573 DOI: 10.3390/ijms141019556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 08/14/2013] [Accepted: 09/10/2013] [Indexed: 12/14/2022] Open
Abstract
We have constructed models for a series of platinum-DNA adducts that represent the binding of two agents, [Pt2(DTBPA)Cl2](II) and [Pt2(TPXA)Cl2](II), to DNA via inter- and intra-strand cross-linking, and carried out molecular dynamics simulations and DNA conformational dynamics calculations. The effects of trans- and cis-configurations of the centers of these di-nuclear platinum agents, and of different bridging linkers, have been investigated on the conformational distortions of platinum-DNA adducts formed via inter- and intra-strand cross-links. The results demonstrate that the DNA conformational distortions for the various platinum-DNA adducts with differing cross-linking modes are greatly influenced by the difference between the platinum-platinum distance for the platinum agent and the platinum-bound N7–N7 distance for the DNA molecule, and by the flexibility of the bridging linkers in the platinum agent. However, the effects of trans/cis-configurations of the platinum-centers on the DNA conformational distortions in the platinum-DNA adducts depend on the inter- and intra-strand cross-linking modes. In addition, we discuss the relevance of DNA base motions, including opening, shift and roll, to the changes in the parameters of the DNA major and minor grooves caused by binding of the platinum agent.
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Affiliation(s)
| | | | - Yan Wang
- Authors to whom correspondence should be addressed; E-Mails: (Y.W.); (G.C.); Tel.: +86-10-5880-5247 (Y.W.); +86-10-5880-5424 (G.C.); Fax: +86-10-5880-2075 (Y.W. & G.C.)
| | - Guangju Chen
- Authors to whom correspondence should be addressed; E-Mails: (Y.W.); (G.C.); Tel.: +86-10-5880-5247 (Y.W.); +86-10-5880-5424 (G.C.); Fax: +86-10-5880-2075 (Y.W. & G.C.)
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Tai HC, Brodbeck R, Kasparkova J, Farrer NJ, Brabec V, Sadler PJ, Deeth RJ. Combined Theoretical and Computational Study of Interstrand DNA Guanine–Guanine Cross-Linking by trans-[Pt(pyridine)2] Derived from the Photoactivated Prodrug trans,trans,trans-[Pt(N3)2(OH)2(pyridine)2]. Inorg Chem 2012; 51:6830-41. [DOI: 10.1021/ic3005745] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hui-Chung Tai
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
| | - Ralf Brodbeck
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
| | - Jana Kasparkova
- The Institute of
Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 61265 Brno, Czech Republic
| | - Nicola J. Farrer
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
| | - Viktor Brabec
- The Institute of
Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 61265 Brno, Czech Republic
| | - Peter J. Sadler
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
| | - Robert J. Deeth
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United
Kingdom
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Téletchéa S, Skauge T, Sletten E, Kozelka J. Cisplatin Adducts on a GGG Sequence within a DNA Duplex Studied by NMR Spectroscopy and Molecular Dynamics Simulations. Chemistry 2009; 15:12320-37. [DOI: 10.1002/chem.200901158] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhu Y, Wang Y, Chen G. Differences in conformational dynamics of [Pt3(HPTAB)]6+-DNA adducts with various cross-linking modes. Nucleic Acids Res 2009; 37:5930-42. [PMID: 19654239 PMCID: PMC2761282 DOI: 10.1093/nar/gkp618] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We present here molecular dynamics simulations and DNA conformational dynamics for a series of trinuclear platinum [Pt3(HPTAB)]6+-DNA adducts [HPTAB = N,N,N′,N′,N′′,N′′-hexakis (2-pyridyl-methyl)-1,3,5-tris(aminomethyl) benzene], including three types of bifunctional crosslinks and four types of trifunctional crosslinks. Our simulation results reveal that binding of the trinuclear platinum compound to a DNA duplex induces the duplex unwinding in the vicinity of the platination sites, and causes the DNA to bend toward the major groove. As a consequence, this produces a DNA molecule whose minor groove is more widened and shallow compared to that of an undamaged bare-DNA molecule. Notably, for trifunctional crosslinks, we have observed extensive DNA conformational distortions, which is rarely seen for normal platinum–DNA adducts. Our findings, in this study, thus provide further support for the idea that platinum compounds with trifunctional intra-strand or long-range-inter-strand cross-linking modes can generate larger DNA conformational distortions than other types of cross-linking modes.
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Affiliation(s)
- Yanyan Zhu
- College of Chemistry, Beijing Normal University, Beijing 100875, P R China
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Wysokiński R, Kuduk-Jaworska J, Michalska D. Electronic structure, Raman and infrared spectra, and vibrational assignment of carboplatin. Density functional theory studies. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.theochem.2005.10.032] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ourliac-Garnier I, Elizondo-Riojas MA, Redon S, Farrell NP, Bombard S. Cross-links of quadruplex structures from human telomeric DNA by dinuclear platinum complexes show the flexibility of both structures. Biochemistry 2005; 44:10620-34. [PMID: 16060671 DOI: 10.1021/bi050144w] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The folding of AG(3)(T(2)AG(3))(3) was investigated in the presence of Na(+) or K(+) ions, by using the dinuclear platinum complexes [{trans-PtCl(NH(3))(2)}(2)H(2)N(CH(2))(n)NH(2)]Cl(2) (n = 2 or 6). AG(3)(T(2)AG(3))(3) has been previously found to adopt two different quadruplex structures: the antiparallel one in a solution containing Na(+) and the parallel one in a K(+)-containing crystal. The two structures are strikingly distinct and are not expected to form the same platinum cross-links. Therefore, characterization of the cross-links formed with platinum complexes in solution allowed the predominant conformation(s) to be identified. The bases coordinating the platinum atoms were identified by chemical and 3'-exonuclease digestions. The observed cross-links showed that the parallel structure exists in solution whatever the cation and confirmed the existence of the antiparallel structure in the presence of both cations as previously reported from cross-linking experiments of AG(3)(T(2)AG(3))(3) by mononuclear platinum complexes. Furthermore, the major platinum cross-links were unexpectedly formed between two guanines belonging to the same G-quartet. Their formation was rationalized using molecular dynamics simulations in implicit solvent of the two quadruplex structures. It was shown that they were flexible, allowing some guanines to leave reversibly the top G-quartet and thus rendering their N(7) atom accessible to platinum complexes. Our results also suggest that the human telomere sequence could be a target for such platinum complexes.
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Affiliation(s)
- Isabelle Ourliac-Garnier
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, UMR8601, Université René Descartes, 45 rue des Saints-Pères, 75270 Paris Cedex 06, France
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Elizondo-Riojas MA, Kozelka J. Unrestrained 5 ns molecular dynamics simulation of a cisplatin-DNA 1,2-GG adduct provides a rationale for the NMR features and reveals increased conformational flexibility at the platinum binding site. J Mol Biol 2001; 314:1227-43. [PMID: 11743736 DOI: 10.1006/jmbi.2000.5216] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A 5 ns unrestrained molecular dynamics (MD) simulation of the DNA duplex d(GCCG*G*ATCGC)-d(GCGATCCGGC), bearing a cis-Pt(NH(3))(2)(2+) unit crosslinking the two G* guanine bases, is reported. The MD trajectory was a posteriori correlated with NMR data determined for the same adduct, and it is shown that interproton distances and the characteristic chemical shifts are accounted for by the simulation. The simulation and its confrontation with the NMR data have confirmed the finding derived early from static models that the cytosine complementary to the 5' G*, C17, is mobile with respect to its adjacent bases. However, in contrast to our previous description of this mobility, which included rupture of the Watson-Crick hydrogen bonds and formation of non-Watson-Crick hydrogen bonds, the MD simulation indicated that the G*4-C17 pair moves continuously along a trajectory roughly perpendicular to the local helix axis, with retention of all three Watson-Crick hydrogen bonds. The simulation indicated the reversible formation of a hydrogen bond between the 5' oriented NH(3) ligand of platinum and the C3pG*4 phosphate group, in accord with our former prediction. Furthermore, the simulation has disclosed previously undetected BI <=> BII transitions at the G*5pA6 and A6pT7 steps, connected to formation/rupture of a hydrogen bond between the 3' oriented NH(3) ligand of platinum and the N7 atom of A6. All these conformational equilibria affect the form of the minor groove and increase the conformational flexibility at the platination site, and are thus likely to facilitate recognition by cellular proteins.
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Affiliation(s)
- M A Elizondo-Riojas
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Université René Descartes, UMR 8601 CNRS, 45 rue des Saints-Pères, 75270, Paris 06, France
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Redon S, Bombard S, Elizondo-Riojas MA, Chottard JC. Platination of the (T2G4)4 telomeric sequence: a structural and cross-linking study. Biochemistry 2001; 40:8463-70. [PMID: 11456483 DOI: 10.1021/bi001565a] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The telomeric sequence (T(2)G(4))(4) was platinated in aqueous solutions containing 50 mM LiClO(4), NaClO(4), or KClO(4). The identification of the guanines which reacted with [Pt(NH(3))(3)(H(2)O)](2+) revealed that the same type of folding exists in the presence of the three cations and that the latter determine the relative stabilities of the G-quadruplex structures in the order K(+) > Na(+) >> Li(+). The tri-ammine complex yielded ca. 40--90% of adducts, mono- and poly-platinated, bound to 4 guanines out of the 16 guanines in the sequence, in the decreasing amounts G9 > G15 >> G3 > G21. The formation of these adducts was interpreted with a G-quadruplex structure obtained by restrained molecular dynamics (rMD) simulations which confirms the schematic model proposed by Williamson et al. [(1989) Cell 59, 871--880]. The bifunctional complexes cis- and trans-[Pt(NH(3))(2)(H(2)O)(2)](2+) also first reacted with G9 and G15 and gave cross-linked adducts between two guanines, which did not exceed 5% each of the products formed. Both the cis and trans isomers formed a G3-G15 platinum chelate, and the second also formed bis-chelates at both ends of the G-quadruplex structure: G3-G15/G9-G21 and G3-G15/G9-G24. The rMD simulations showed that the cross-linking reactions by the trans complex can occur without disturbing the stacking of the three G-quartets.
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Affiliation(s)
- S Redon
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, UMR 8601 CNRS, Université Paris V, 45 Rue des Saints-Pères, 75270 Paris Cedex 06, France
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Rauhut G. Recent Advances in Computing Heteroatom-Rich Five- and Six-Membered Ring Systems. ADVANCES IN HETEROCYCLIC CHEMISTRY 2001. [DOI: 10.1016/s0065-2725(01)81010-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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Affiliation(s)
- A Dedieu
- Laboratoire de Chimie Quantique, UMR 7551 CNRS/ULP, Université Louis Pasteur, 4 rue Blaise Pascal, 67000 Strasbourg, France
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