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Barbanente A, Galliani A, Iacobazzi RM, Lasorsa A, Nardella MI, Pennetta A, Margiotta N, Arnesano F. Interaction of Copper Trafficking Proteins with the Platinum Anticancer Drug Kiteplatin. ChemMedChem 2021; 17:e202100593. [PMID: 34727402 PMCID: PMC9298912 DOI: 10.1002/cmdc.202100593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/29/2021] [Indexed: 12/31/2022]
Abstract
The interaction of metallodrugs with proteins influences their mechanism of action and side effects. In the case of platinum drugs, copper transporters modulate sensitivity and resistance to these anticancer agents. To deepen the knowledge of the structural properties underlying the reactivity of platinum drugs with copper transporters, we studied the interaction of kiteplatin and two of its derivatives with the methionine‐rich motif of copper importer Ctr1 and with the dithiol motif of the first domain of Menkes ATPase. Furthermore, cellular uptake and cytotoxicity of the three complexes were evaluated in cisplatin‐sensitive and ‐resistant ovarian cancer cells, comparing the data with those of clinically relevant drugs. Reactivity depends on the tightness of the chelate ring formed by the carrier ligands and the nature of the leaving and entering groups. The results highlight the importance of subtle changes in the platinum coordination sphere that affect drug absorption and intracellular fate.
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Affiliation(s)
- Alessandra Barbanente
- Department of Chemistry, University of Bari "Aldo Moro", Via E. Orabona 4, 70125, Bari, Italy
| | - Angela Galliani
- Department of Chemistry, University of Bari "Aldo Moro", Via E. Orabona 4, 70125, Bari, Italy
| | - Rosa Maria Iacobazzi
- Laboratory of Experimental Pharmacology, IRCCS Istituto Tumori "Giovanni Paolo II", Viale O. Flacco 65, 70124, Bari, Italy
| | - Alessia Lasorsa
- Department of Chemistry, University of Bari "Aldo Moro", Via E. Orabona 4, 70125, Bari, Italy
| | | | - Antonio Pennetta
- Department of Engineering for Innovation, University of Salento, Via per Monteroni Km 1, 73100, Lecce, Italy.,Department of Cultural Heritage, University of Salento, Via Dalmazio Birago 64, 73100, Lecce, Italy
| | - Nicola Margiotta
- Department of Chemistry, University of Bari "Aldo Moro", Via E. Orabona 4, 70125, Bari, Italy
| | - Fabio Arnesano
- Department of Chemistry, University of Bari "Aldo Moro", Via E. Orabona 4, 70125, Bari, Italy
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2
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Gabano E, Rangone B, Perin E, Caron G, Ermondi G, Vallaro M, Gandin V, Marzano C, Barbanente A, Margiotta N, Ravera M. Pt(iv) complexes based on cyclohexanediamines and the histone deacetylase inhibitor 2-(2-propynyl)octanoic acid: synthesis, characterization, cell penetration properties and antitumor activity. Dalton Trans 2021; 50:4663-4672. [PMID: 33725031 DOI: 10.1039/d0dt04135a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Pt(iv) complexes based on (SP-4-2)-dichlorido(cyclohexane-1,4-diamine)platinum(ii) (kiteplatin) and the histone deacetylase inhibitor 2-(2-propynyl)octanoic acid (POA) were investigated. Since POA contains a chiral carbon, all the possible Pt(iv) isomers were prepared and characterized, and their antiproliferative activity on six cancer cell lines was compared with that of the corresponding Pt(iv) complexes containing the cyclohexane-1R,2R-diamine equatorial ligand. To justify the very good antiproliferative activity (nanomolar IC50), the polarity, lipophilicity, permeability, and cell accumulation of the complexes were studied. Overall, the two series of Pt(iv) complexes showed similar cell penetration properties, being significantly better than that of the Pt(ii) reference compounds. Finally, a representative compound of the whole set of complexes (i.e., that based on cyclohexane-1R,2R-diamine and racemic POA) was tested in vivo on mice bearing Lewis lung carcinoma, showing good tumor growth inhibition with negligible body weight loss.
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Affiliation(s)
- Elisabetta Gabano
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, 15121 Alessandria, Italy.
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3
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Misirlic-Dencic S, Poljarevic J, Isakovic AM, Sabo T, Markovic I, Trajkovic V. Current Development of Metal Complexes with Diamine Ligands as Potential Anticancer Agents. Curr Med Chem 2020; 27:380-410. [DOI: 10.2174/0929867325666181031114306] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 09/20/2018] [Accepted: 09/22/2018] [Indexed: 01/21/2023]
Abstract
Background::
The discovery of cisplatin and the subsequent research revealed the importance
of dinitrogen-containing moiety for the anticancer action of metal complexes. Moreover, certain
diamine ligands alone display cytotoxicity that contributes to the overall activity of corresponding
complexes.
Objective::
To summarize the current knowledge on the anticancer efficacy, selectivity, and the mechanisms
of action of metal complexes with various types of diamine ligands.
Method::
The contribution of aliphatic acyclic, aliphatic cyclic, and aromatic diamine ligands to the
anticancer activity and selectivity/toxicity of metal complexes with different metal ions were analyzed
by comparison with organic ligand alone and/or conventional platinum-based chemotherapeutics.
Results::
The aliphatic acyclic diamine ligands are present mostly in complexes with platinum. Aliphatic
cyclic diamines are part of Pt(II), Ru(II) and Au(III) complexes, while aromatic diamine ligands
are found in Pt(II), Ru(II), Pd(II) and Ir(III) complexes. The type and oxidation state of metal ions
greatly influences the cytotoxicity of metal complexes with aliphatic acyclic diamine ligands. Lipophilicity
of organic ligands, dependent on alkyl-side chain length and structure, determines their cellular
uptake, with edda and eddp/eddip ligands being most useful in this regard. Aliphatic cyclic diamine
ligands improved the activity/toxicity ratio of oxaliplatin-type complexes. The complexes with aromatic
diamine ligands remain unexplored regarding their anticancer mechanism. The investigated complexes
mainly caused apoptotic or necrotic cell death.
Conclusion::
Metal complexes with diamine ligands are promising candidates for efficient and more
selective alternatives to conventional platinum-based chemotherapeutics. Further research is required to
reveal the chemico-physical properties and molecular mechanisms underlying their biological activity.
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Affiliation(s)
- Sonja Misirlic-Dencic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, Belgrade 11,000, Serbia
| | - Jelena Poljarevic
- Faculty of Chemistry, University of Belgrade, Belgrade 11,000, Serbia
| | - Andjelka M. Isakovic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, Belgrade 11,000, Serbia
| | - Tibor Sabo
- Faculty of Chemistry, University of Belgrade, Belgrade 11,000, Serbia
| | - Ivanka Markovic
- Institute of Medical and Clinical Biochemistry, School of Medicine, University of Belgrade, Pasterova 2, Belgrade 11,000, Serbia
| | - Vladimir Trajkovic
- Institute of Microbiology and Immunology, School of Medicine, University of Belgrade, Belgrade 11,000, Serbia
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Papadia P, Gandin V, Barbanente A, Ruello AG, Marzano C, Micoli K, Hoeschele JD, Natile G, Margiotta N. A minimal structural variation can overcome tumour resistance of oxaliplatin: the case of 4,5-dehydrogenation of the cyclohexane ring. RSC Adv 2019; 9:32448-32452. [PMID: 35529760 PMCID: PMC9072990 DOI: 10.1039/c9ra07760j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 09/30/2019] [Indexed: 11/23/2022] Open
Abstract
A new family of anticancer compounds has been derived from oxaliplatin by inserting a double-bond between carbons 4 and 5 of the 1,2-diaminocyclohexane ring. Testing against a panel of human tumour cell lines including cervical (A431), ovarian (2008), and colon carcinomas (HCT-15 and LoVo), and two oxaliplatin-resistant clones (LoVo OXP and LoVo MDR) has shown that the new compounds have, in general, equal if not better cytotoxic activity and are able to overcome the oxaliplatin-resistance. Moreover, the oxalato derivative induced lipid droplets increase in LoVo OXP cells thus suggesting the involvement of metabolism stress in its mechanism of action. A new family of anticancer compounds has been derived from oxaliplatin by inserting a double-bond between carbons 4 and 5 of the 1,2-diaminocyclohexane ring.![]()
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Affiliation(s)
- Paride Papadia
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA)
- University of Salento
- 73100 Lecce
- Italy
- CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici
| | - Valentina Gandin
- Dipartimento di Scienze del Farmaco
- Università di Padova
- Padova
- Italy
| | - Alessandra Barbanente
- CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici
- 70121 Bari
- Italy
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
| | - Alessandro G. Ruello
- CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici
- 70121 Bari
- Italy
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
| | - Cristina Marzano
- Dipartimento di Scienze del Farmaco
- Università di Padova
- Padova
- Italy
| | - Katia Micoli
- CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici
- 70121 Bari
- Italy
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
| | | | - Giovanni Natile
- CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici
- 70121 Bari
- Italy
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
| | - Nicola Margiotta
- CIRCMSB, Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici
- 70121 Bari
- Italy
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
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5
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Multi-Acting Mitochondria-Targeted Platinum(IV) Prodrugs of Kiteplatin with α-Lipoic Acid in the Axial Positions. Int J Mol Sci 2018; 19:ijms19072050. [PMID: 30011897 PMCID: PMC6073472 DOI: 10.3390/ijms19072050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/07/2018] [Accepted: 07/12/2018] [Indexed: 12/17/2022] Open
Abstract
Platinum(II) drugs are activated intracellularly by aquation of the leaving groups and then bind to DNA, forming DNA adducts capable to activate various signal-transduction pathways. Mostly explored in recent years are Pt(IV) complexes which allow the presence of two additional ligands in the axial positions suitable for the attachment of other cancer-targeting ligands. Here we have extended this strategy by coordinating in the axial positions of kiteplatin ([PtCl₂(cis-1,4-DACH)], DACH = Diaminocyclohexane) and its CBDCA (1,1-cyclobutanedicarboxylate) analogue the antioxidant α-Lipoic acid (ALA), an inhibitor of the mitochondrial pyruvate dehydrogenase kinase (PDK). The new compounds (cis,trans,cis-[Pt(CBDCA)(ALA)₂(cis-1,4-DACH)], 2, and cis,trans,cis-[PtCl₂(ALA)₂(cis-1,4-DACH)], 3), after intracellular reduction, release the precursor Pt(II) species and two molecules of ALA. The Pt residue is able to target DNA, while ALA could act on mitochondria as activator of the pyruvate dehydrogenase complex, thus suppressing anaerobic glycolysis. Compounds 2 and 3 were tested in vitro on a panel of five human cancer cell lines and compared to cisplatin, oxaliplatin, and kiteplatin. They proved to be much more effective than the reference compounds, with complex 3 most effective in 3D spheroid tumor cultures. Notably, treatment of human A431 carcinoma cells with 2 and 3 did not determine increase of cellular ROS (usually correlated to inhibition of mitochondrial PDK) and did not induce a significant depolarization of the mitochondrial membrane or alteration of other morphological mitochondrial parameters.
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6
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Synthesis, characterization, and in vitro cytotoxicity of a Kiteplatin-Ibuprofen Pt(IV) prodrug. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.07.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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7
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Lelli M, Roveri N, Marzano C, Hoeschele JD, Curci A, Margiotta N, Gandin V, Natile G. Hydroxyapatite nanocrystals as a smart, pH sensitive, delivery system for kiteplatin. Dalton Trans 2018; 45:13187-95. [PMID: 27397134 DOI: 10.1039/c6dt01976e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Hydroxyapatite (HA) nanocrystals are important inorganic constituents of biological hard tissues in vertebrates and have been proposed as a bone substitute or a coating material for prostheses in biomedicine. Hydroxyapatite is also amenable for its capacity to bind to a great variety of biomolecules and therapeutic agents. As drug carriers, apatite nanoparticles also have the advantage of pH dependent solubility and low toxicity. Thus HA nanoparticles are negligibly soluble at physiological pH but their dissolution is accelerated at lower pH such as that typically found in the vicinity of tumors. In the present study we have investigated the adsorption on and the release from biomimetic HA nanoparticles of two platinum derivatives of cis-1,4-diaminocyclohexane ([PtX2(cis-1,4-DACH)], X2 = Cl2 (1) and 1,1-cyclobutanedicarboxylate (CBDCA, 2)). The first of the two compounds proved to be active against colon cancer cells also resistant to oxaliplatin. The release has been investigated as a function of pH to mimic the different physiological environments of healthy tissues and tumors, and the in vitro cytotoxicity of the releasates from the HA matrices has been assessed against various human cancer cell lines. The results fully confirmed the potential of 1-loaded HA nanoparticles as bone-specific drug delivery devices.
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Affiliation(s)
- Marco Lelli
- Bioecoactive S.r.l, via San Donato n.5, 40050 Granarolo, Italy
| | - Norberto Roveri
- Bioecoactive S.r.l, via San Donato n.5, 40050 Granarolo, Italy
| | - Cristina Marzano
- Dipartimento di Scienze del Farmaco, Università di Padova, Via Marzolo 5, 35131, Padova, Italy.
| | - James D Hoeschele
- Department of Chemistry, Eastern Michigan University, 48197 Ypsilanti, MI, USA
| | - Alessandra Curci
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy.
| | - Nicola Margiotta
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy.
| | - Valentina Gandin
- Dipartimento di Scienze del Farmaco, Università di Padova, Via Marzolo 5, 35131, Padova, Italy.
| | - Giovanni Natile
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy.
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8
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Margiotta N, Savino S, Denora N, Marzano C, Laquintana V, Cutrignelli A, Hoeschele JD, Gandin V, Natile G. Encapsulation of lipophilic kiteplatin Pt(iv) prodrugs in PLGA-PEG micelles. Dalton Trans 2018; 45:13070-81. [PMID: 27094010 DOI: 10.1039/c6dt00763e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Biodegradable, PEG-coated, nanoparticles (NPs) have gained therapeutic application as injectable colloidal systems for the controlled and site-specific release of drugs. In this paper, encapsulation in PLGA-PEG polymer NPs has been exploited to lower the toxicity and to increase the antitumor activity of kiteplatin ([PtCl2(cis-1,4-DACH)]). Kiteplatin contains an isomeric form of the diamine ligand present in oxaliplatin and proved to be particularly active against ovarian and colon cancers. To favor encapsulation of the platinum drug in the hydrophobic core of the polymeric micelles, Pt(iv) prodrugs having hydrophobic carboxylic ligands at the axial positions were used in place of hydrophilic Pt(ii) complexes (compounds 1-4). The size, size distribution, and zeta potential (ZP) were measured by dynamic light scattering (DLS) and laser Doppler velocimetry (LDV), and drug encapsulation efficiency (EE) correlated to the alkyl chain length of the different Pt(iv) prodrugs. The number of the Pt atoms per NP (in the range of 1.3-2.4 × 10(6)) is comparable to that of polysilsesquioxane-based NPs and higher than that found for other nanoparticle platforms. The platinum-loaded PLGA-PEG NPs, tested in vivo in a syngeneic murine solid tumor (LLC), had a higher antitumor effect and, most importantly, were markedly less toxic than kiteplatin.
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Affiliation(s)
- Nicola Margiotta
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via E. Orabona 4, 70125 Bari, Italy.
| | - Salvatore Savino
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via E. Orabona 4, 70125 Bari, Italy.
| | - Nunzio Denora
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, via E. Orabona 4, 70125 Bari, Italy
| | - Cristina Marzano
- Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy
| | - Valentino Laquintana
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, via E. Orabona 4, 70125 Bari, Italy
| | - Annalisa Cutrignelli
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, via E. Orabona 4, 70125 Bari, Italy
| | - James D Hoeschele
- Department of Chemistry, Eastern Michigan University, Ypsilanti, MI, 48197 USA
| | - Valentina Gandin
- Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy
| | - Giovanni Natile
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via E. Orabona 4, 70125 Bari, Italy.
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9
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Pages BJ, Sakoff J, Gilbert J, Zhang Y, Kelly SM, Hoeschele JD, Aldrich-Wright JR. Combining the platinum(ii) drug candidate kiteplatin with 1,10-phenanthroline analogues. Dalton Trans 2018; 47:2156-2163. [DOI: 10.1039/c7dt04108j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Drug candidate kiteplatin has been combined with analogues of 1,10-phenanthroline, and the DNA affinity and cytotoxicity have been assessed.
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Affiliation(s)
- Benjamin J. Pages
- Nanoscale Organisation and Dynamics Group
- Western Sydney University
- Campbelltown
- Australia
| | | | | | - Yingjie Zhang
- Australian Nuclear Science and Technology Organisation
- Kirrawee DC
- Australia
| | - Sharon M. Kelly
- Institute of Molecular
- Cell and Systems Biology
- College of Medical
- Veterinary and Life Sciences
- University of Glasgow
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10
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Savino S, Gandin V, Hoeschele JD, Marzano C, Natile G, Margiotta N. Dual-acting antitumor Pt(iv) prodrugs of kiteplatin with dichloroacetate axial ligands. Dalton Trans 2018; 47:7144-7158. [DOI: 10.1039/c8dt00686e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
DNA and mitochondria of tumor cells are the targets of Pt(iv) complexes of kiteplatin with biologically active dichloroacetate as axial ligands.
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Affiliation(s)
- Salvatore Savino
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
- 70125 Bari
- Italy
| | - Valentina Gandin
- Dipartimento di Scienze del Farmaco
- Università di Padova
- 35131 Padova
- Italy
| | | | - Cristina Marzano
- Dipartimento di Scienze del Farmaco
- Università di Padova
- 35131 Padova
- Italy
| | - Giovanni Natile
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
- 70125 Bari
- Italy
| | - Nicola Margiotta
- Dipartimento di Chimica
- Università degli Studi di Bari Aldo Moro
- 70125 Bari
- Italy
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11
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Curci A, Gandin V, Marzano C, Hoeschele JD, Natile G, Margiotta N. Novel Kiteplatin Pyrophosphate Derivatives with Improved Efficacy. Inorg Chem 2017. [PMID: 28636387 DOI: 10.1021/acs.inorgchem.7b00931] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Two new Pt(II) derivatives of kiteplatin ([PtCl2(cis-1,4-DACH)]) with pyrophosphate as carrier ligand, one mononuclear (1) and one dinuclear (2), were synthesized with the aim of potentiating the efficacy of kiteplatin. Complex 1 resulted to be remarkably stable at physiological pH, but it undergoes a fast hydrolysis reaction at acidic pH releasing free pyrophosphate and (aquated) kiteplatin. The dinuclear compound 2 resulted to be less stable than 1 at both neutral and acidic pH forming 1 and (aquated) kiteplatin as first step. Both compounds (1 and 2) do not react as such with 5'-GMP, whereas their hydrolysis products readily form adducts with the nucleotide. The in vitro cytotoxicity assays against a panel of six human cancer cell lines showed that complex 2 affects cancer cell viability even at nanomolar concentrations. The cytotoxic activity of 2 is greater (up to 2 orders of magnitude) than that of cisplatin, oxaliplatin, and kiteplatin, whereas the mononuclear complex 1 has shown a cytotoxic activity comparable to that of oxaliplatin and kiteplatin, but higher than cisplatin. The latter result is not surprising, since the presence of two negative charges reduces the uptake of 1 into the tumor cells as compared to the neutral compound 2. The remarkable activity of 2 against the pancreatic cell line BxPC3 (average IC50 = 0.07 μM) deserves further investigation.
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Affiliation(s)
- Alessandra Curci
- Department of Chemistry, University of Bari Aldo Moro , Via E. Orabona 4, 70125 Bari, Italy
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua , Via Marzolo 5, 35131 Padova, Italy
| | - Cristina Marzano
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua , Via Marzolo 5, 35131 Padova, Italy
| | - James D Hoeschele
- Department of Chemistry, Eastern Michigan University , 48197 Ypsilanti, Michigan, United States
| | - Giovanni Natile
- Department of Chemistry, University of Bari Aldo Moro , Via E. Orabona 4, 70125 Bari, Italy
| | - Nicola Margiotta
- Department of Chemistry, University of Bari Aldo Moro , Via E. Orabona 4, 70125 Bari, Italy
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12
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Papadia P, Barozzi F, Hoeschele JD, Piro G, Margiotta N, Di Sansebastiano GP. Cisplatin, Oxaliplatin, and Kiteplatin Subcellular Effects Compared in a Plant Model. Int J Mol Sci 2017; 18:ijms18020306. [PMID: 28146116 PMCID: PMC5343842 DOI: 10.3390/ijms18020306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 01/25/2017] [Indexed: 01/09/2023] Open
Abstract
The immediate visual comparison of platinum chemotherapeutics’ effects in eukaryotic cells using accessible plant models of transgenic Arabidopsis thaliana is reported. The leading anticancer drug cisplatin, a third generation drug used for colon cancer, oxaliplatin and kiteplatin, promising Pt-based anticancer drugs effective against resistant lines, were administered to transgenic A. thaliana plants monitoring their effects on cells from different tissues. The transgenic plants’ cell cytoskeletons were labelled by the green fluorescent protein (GFP)-tagged microtubule-protein TUA6 (TUA6-GFP), while the vacuolar organization was evidenced by two soluble chimerical GFPs (GFPChi and AleuGFP) and one transmembrane GFP-tagged tonoplast intrinsic protein 1-1 (TIP1.1-GFP). The three drugs showed easily recognizable effects on plant subcellular organization, thereby providing evidence for a differentiated drug targeting. Genetically modified A. thaliana are confirmed as a possible rapid and low-cost screening tool for better understanding the mechanism of action of human anticancer drugs.
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Affiliation(s)
- Paride Papadia
- Department of Biotechnology and Environmental Sciences, University of Salento, via Monteroni-Centro Ecotekne, 73100 Lecce, Italy.
| | - Fabrizio Barozzi
- Department of Biotechnology and Environmental Sciences, University of Salento, via Monteroni-Centro Ecotekne, 73100 Lecce, Italy.
| | - James D Hoeschele
- Department of Chemistry, Eastern Michigan University, Ypsilanti, MI 48197, USA.
| | - Gabriella Piro
- Department of Biotechnology and Environmental Sciences, University of Salento, via Monteroni-Centro Ecotekne, 73100 Lecce, Italy.
| | - Nicola Margiotta
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70125 Bari, Italy.
| | - Gian-Pietro Di Sansebastiano
- Department of Biotechnology and Environmental Sciences, University of Salento, via Monteroni-Centro Ecotekne, 73100 Lecce, Italy.
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13
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Petruzzella E, Curci A, Margiotta N, Natile G, Hoeschele JD. Kiteplatin: Differential binding between GSH and GMP. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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14
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Moosun SB, Bhowon MG, Hosten EC, Jhaumeer-Laulloo S. Crystal structures, antibacterial, antioxidant and nucleic acid interactions of mononuclear, and tetranuclear palladium(II) complexes containing Schiff base ligands. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1208818] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- S. B. Moosun
- Department of Chemistry, University of Mauritius, Reduit, Mauritius
| | - M. G. Bhowon
- Department of Chemistry, University of Mauritius, Reduit, Mauritius
| | - E. C. Hosten
- Department of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa
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15
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Margiotta N, Savino S, Marzano C, Pacifico C, Hoeschele JD, Gandin V, Natile G. Cytotoxicity-boosting of kiteplatin by Pt(IV) prodrugs with axial benzoate ligands. J Inorg Biochem 2016; 160:85-93. [DOI: 10.1016/j.jinorgbio.2015.11.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/04/2015] [Accepted: 11/30/2015] [Indexed: 01/11/2023]
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16
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He Y, Yuan J, Qiao Y, Wang D, Chen W, Liu X, Chen H, Guo Z. The role of carrier ligands of platinum(II) anticancer complexes in the protein recognition of Pt-DNA adducts. Chem Commun (Camb) 2016; 51:14064-7. [PMID: 26248639 DOI: 10.1039/c5cc05257b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to systematically investigate the influence of carrier ligands on the interaction of Pt-DNA adducts with damage recognition proteins, a series of DNA probes containing 1,2-GG platinum compound crosslinks using cisplatin, oxaliplatin, (S,S-DACH)PtCl2 and (cis-1,4-DACH)PtCl2 (kiteplatin) has been constructed. These complexes share similar DNA binding properties although they exhibit quite different cytotoxicity. It is revealed that HMGB1 (high-mobility group protein B1) was the most commonly found protein that recognizes all Pt(II)-DNA probes and prefers cisplatin-DNA probes more than the others. Interestingly, an important component of the replication protein A complex, RPA2, was found to bind to kiteplatin much more tightly than other proteins. These results may be important for the interpretation of the roles of carrier ligands in platinum(II)-based anticancer complexes.
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Affiliation(s)
- Yafeng He
- State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, 210093, P. R. China.
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Graziani V, Coletti C, Marrone A, Re N. Activation and Reactivity of a Bispidine Analogue of Cisplatin: A Theoretical Investigation. J Phys Chem A 2016; 120:5175-86. [PMID: 27070849 DOI: 10.1021/acs.jpca.6b00844] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reactivity of a bispidine, 3,7-diazabicyclo[3.3.1]nonane, analogue of cisplatin, a new anticancer drug with promising properties, is theoretically investigated to clarify the in vitro reactivity and in vivo mechanism of action of this compound. Thermodynamics and kinetics of the first and second aquation steps and of the reaction of the generated mono- and diaqua species with guanine, the main target of the platinum based antitumor compounds, have been studied. In agreement with the experimental evidence, the bispidine analogue is significantly less reactive than cisplatin toward aquation but the formed aquaspecies show a good reactivity with guanine, consistently with the promising anticancer properties of these new compounds.
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Affiliation(s)
- Valentina Graziani
- Dipartimento di Farmacia, Università degli Studi "G. D'Annunzio" Chieti-Pescara , Via dei Vestini, I-66100 Chieti, Italy
| | - Cecilia Coletti
- Dipartimento di Farmacia, Università degli Studi "G. D'Annunzio" Chieti-Pescara , Via dei Vestini, I-66100 Chieti, Italy
| | - Alessandro Marrone
- Dipartimento di Farmacia, Università degli Studi "G. D'Annunzio" Chieti-Pescara , Via dei Vestini, I-66100 Chieti, Italy
| | - Nazzareno Re
- Dipartimento di Farmacia, Università degli Studi "G. D'Annunzio" Chieti-Pescara , Via dei Vestini, I-66100 Chieti, Italy
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Wang Z, Yu H, Gou S, Chen F, Fang L. Design, Synthesis, and Biological Features of Platinum(II) Complexes with Rigid Steric Hindrance. Inorg Chem 2016; 55:4519-28. [PMID: 27074104 DOI: 10.1021/acs.inorgchem.6b00361] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of platinum(II) complexes, with N-monosubstituted 1R,2R-diaminocyclohexane bearing methoxy-substituted benzyl groups as carrier ligands, were designed and synthesized. The newly prepared compounds, with chloride anions as leaving groups, were found to be very active against the tested cancer cell lines, including a cisplatin-resistant cell line. Despite their efficacy against tumor cells, they also showed low toxicity to a human normal liver cell line. Among them, complex 1 had superior cytotoxic activity against A549, HCT-116, MCF-7, SGC7901, and SGC7901/CDDP cancer cell lines. The DNA binding assay is of further special interest, as an unusual monofunctional binding mode was found, due to the introduction of a rigid substituted aromatic ring in the 1R,2R-diaminocyclohexane framework as steric hindrance. The linkage of complex 1 with DNA was stable and insensitive to nucleophilic attack. Moreover, studies including cellular uptake, gel electrophoresis, apoptosis and cell cycle, and Western blot analysis have provided insight into the high potency of this compound.
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Affiliation(s)
- Zhimei Wang
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering and ‡Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University , Nanjing 211189, China
| | - Haiyan Yu
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering and ‡Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University , Nanjing 211189, China
| | - Shaohua Gou
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering and ‡Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University , Nanjing 211189, China
| | - Feihong Chen
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering and ‡Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University , Nanjing 211189, China
| | - Lei Fang
- Pharmaceutical Research Center and School of Chemistry and Chemical Engineering and ‡Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University , Nanjing 211189, China
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Wang Z, Wu M, Gou S. Toward a better understanding of the oxaliplatin mode of action upon the steric hindrance of 1,2-diaminocyclohexane and its analogue. J Inorg Biochem 2016; 157:1-7. [DOI: 10.1016/j.jinorgbio.2016.01.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 12/29/2015] [Accepted: 01/07/2016] [Indexed: 01/12/2023]
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20
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Petruzzella E, Margiotta N, Natile G, Hoeschele JD. Reactivity of kiteplatin with S-donor biomolecules and nucleotides. Dalton Trans 2015; 43:12851-9. [PMID: 25051186 DOI: 10.1039/c4dt01474j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Kiteplatin, (cis-1,4-DACH)dichloridoplatinum(ii), contains an isomeric form of the carrier ligand present in the successful antitumor drug oxaliplatin and has been recently found to be very active against oxaliplatin-resistant colon cancers, confirming that, by changing the nature of the amine ligand, it is possible to obtain platinum drugs that are not cross-resistant to those already in clinical use. Apart from interaction with DNA, another factor that can affect the activity of platinum drugs is their metabolic fate in the cellular environment. Therefore, kiteplatin has been reacted with S-donor biomolecules, such as glutathione, cysteine, and methionine. The investigation has further confirmed the different reactivity of methionine as compared to cysteine-containing peptides and has unraveled the possibility of cis-1,4-DACH to become mono-coordinated with one free end (a situation never seen for isomeric 1,2-DACH ligands) and to labilize cis ligands as a consequence of its large steric hindrance. The reaction of kiteplatin-GSH adducts with 5'-GMP has also shown how the reaction products can be different depending upon the aerobic or anaerobic reaction conditions used.
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Mutter ST, Margiotta N, Papadia P, Platts JA. Computational evidence for structural consequences of kiteplatin damage on DNA. J Biol Inorg Chem 2015; 20:35-48. [PMID: 25377895 DOI: 10.1007/s00775-014-1207-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 10/17/2014] [Indexed: 01/12/2023]
Abstract
The reaction of the potential anticancer drug kiteplatin, cis-[PtCl2(cis-1,4-DACH)], with oligomers of single- and double-stranded DNA ranging from 2 to 12 base pairs in length was performed as a model for DNA interaction. The potential for conformational flexibility of single-stranded adducts was examined with density functional theory (DFT) and compared with data from (1)H-NMR 1D and 2D spectroscopy. This indicates the presence of multiple conformations of an adduct with d(GpG), but only one form of the adduct with d(TGGT). The importance of a suitable theoretical model, and in particular basis set, in reproducing experimental data is demonstrated. The DFT theoretical model was extended to platinated base pair step (GG/CC), allowing a comparison to the related compounds cisplatin and oxaliplatin. Adducts of kiteplatin with larger fragments of double-stranded DNA, including tetramer, octamer, and dodecamer, were studied theoretically using hybrid quantum mechanics/molecular mechanics methods. Structural parameters of all the base-paired models were evaluated and binding energies calculated in gas phase and in solution; these are compared across the series and also with the related complexes cisplatin and oxaliplatin, thus revealing insights into how kiteplatin binds to DNA and similarities and differences between this and related compounds.
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Affiliation(s)
- Shaun T Mutter
- School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 3AT, UK
| | - Nicola Margiotta
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona 4, 70125, Bari, Italy
| | - Paride Papadia
- Department of Biotechnology and Environmental Sciences, University of Salento, via Monteroni, 73100, Lecce, Italy
| | - James A Platts
- School of Chemistry, Cardiff University, Park Place, Cardiff, CF10 3AT, UK.
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Margiotta N, Petruzzella E, Platts JA, Mutter ST, Deeth RJ, Ranaldo R, Papadia P, Marzilli PA, Marzilli LG, Hoeschele JD, Natile G. DNA fragment conformations in adducts with Kiteplatin. Dalton Trans 2015; 44:3544-56. [DOI: 10.1039/c4dt01796j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The anticancer-active platinum complex with cis-1,4-diaminocyclohexane has proved to be very valuable in detecting multiple conformers in adducts with oligonucleotides.
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Affiliation(s)
- Nicola Margiotta
- Dipartimento di Chimica
- Università degli Studi di Bari A. Moro
- 70125 Bari
- Italy
| | | | | | | | | | - Rosa Ranaldo
- Dipartimento di Chimica
- Università degli Studi di Bari A. Moro
- 70125 Bari
- Italy
- Department of Chemistry
| | - Paride Papadia
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali
- Università del Salento
- 73100 Lecce
- Italy
| | | | | | | | - Giovanni Natile
- Dipartimento di Chimica
- Università degli Studi di Bari A. Moro
- 70125 Bari
- Italy
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24
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Patel MN, Patidar AP, Karia PS, Vekariya PA. Cytotoxic, antibacterial and nucleic acid interaction studies of square planar palladium(II) complexes. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.04.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Cui H, Goddard R, Pörschke KR, Hamacher A, Kassack MU. Bispidine Analogues of Cisplatin, Carboplatin, and Oxaliplatin. Synthesis, Structures, and Cytotoxicity. Inorg Chem 2014; 53:3371-84. [DOI: 10.1021/ic402737f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Huiling Cui
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Klaus-Richard Pörschke
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Alexandra Hamacher
- Institut für Pharmazeutische und Medizinische
Chemie der Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse
1, 40225 Düsseldorf, Germany
| | - Matthias U. Kassack
- Institut für Pharmazeutische und Medizinische
Chemie der Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse
1, 40225 Düsseldorf, Germany
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26
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Chval Z, Kabeláč M, Burda JV. Mechanism of the cis-[Pt(1R,2R-DACH)(H2O)2]2+ intrastrand binding to the double-stranded (pGpG)·(CpC) dinucleotide in aqueous solution: a computational DFT study. Inorg Chem 2013; 52:5801-13. [PMID: 23656523 DOI: 10.1021/ic302654s] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A mechanism of the intrastrand 1,2-cross-link formation between the double-stranded pGpG·CpC dinucleotide (ds(pGpG)) and fully aquated oxaliplatin cis-[Pt(DACH)(H2O)2](2+) (DACH = cyclohexane-1R,2R-diamine) is presented. All structures of the reaction pathways including the transition states (TSs) were fully optimized in water solvent using DFT methodology with dispersion corrections. Both 5' → 3' and 3' → 5' binding directions were considered. In the first step there is a slight kinetic preference for 5'-guanine (5'G) monoadduct formation with an activation Gibbs free energy of 18.7 kcal/mol since the N7 center of the 5'G base is fully exposed to the solvent. On the other hand, the N7 atom of 3'-guanine (3'G) is sterically shielded by 5'G. The lowest energy path for formation of the 3'G monoadduct with an activation barrier of 19.3 kcal/mol is connected with a disruption of the 'DNA-like' structure of ds(pGpG). Monoadduct formation is the rate-determining process. The second step, chelate formation, is kinetically preferred in the 3' → 5' direction. The whole process of the platination is exergonic by up to -18.8 kcal/mol. Structural changes of ds(pGpG), charge transfer effects, and the influence of platination on the G·C base pair interaction strengths are also discussed in detail.
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Affiliation(s)
- Zdeněk Chval
- Department of Laboratory Methods and Information Systems, Faculty of Health and Social Studies, University of South Bohemia, J. Boreckého 27, 370 11 České Budějovice, Czech Republic.
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27
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Ferri N, Cazzaniga S, Mazzarella L, Curigliano G, Lucchini G, Zerla D, Gandolfi R, Facchetti G, Pellizzoni M, Rimoldi I. Cytotoxic effect of (1-methyl-1 H -imidazol-2-yl)-methanamine and its derivatives in Pt II complexes on human carcinoma cell lines: A comparative study with cisplatin. Bioorg Med Chem 2013; 21:2379-2386. [DOI: 10.1016/j.bmc.2013.01.063] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 01/18/2013] [Accepted: 01/24/2013] [Indexed: 10/27/2022]
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28
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Petruzzella E, Margiotta N, Ravera M, Natile G. NMR Investigation of the Spontaneous Thermal- and/or Photoinduced Reduction of trans Dihydroxido Pt(IV) Derivatives. Inorg Chem 2013; 52:2393-403. [DOI: 10.1021/ic302100x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Emanuele Petruzzella
- Dipartimento di Chimica, Università degli Studi di Bari “A. Moro”, via E.
Orabona 4, 70125 Bari, Italy
| | - Nicola Margiotta
- Dipartimento di Chimica, Università degli Studi di Bari “A. Moro”, via E.
Orabona 4, 70125 Bari, Italy
| | - Mauro Ravera
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale “Amedeo Avogadro”, viale T. Michel 11, 15121 Alessandria, Italy
| | - Giovanni Natile
- Dipartimento di Chimica, Università degli Studi di Bari “A. Moro”, via E.
Orabona 4, 70125 Bari, Italy
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29
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Neves AP, Pereira MXG, Peterson EJ, Kipping R, Vargas MD, Silva FP, Carneiro JWM, Farrell NP. Exploring the DNA binding/cleavage, cellular accumulation and topoisomerase inhibition of 2-hydroxy-3-(aminomethyl)-1,4-naphthoquinone Mannich bases and their platinum(II) complexes. J Inorg Biochem 2012. [PMID: 23186648 DOI: 10.1016/j.jinorgbio.2012.10.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Several chlorido and amino Pt(2+) complexes of 2-hydroxy-3-(aminomethyl)-1,4-naphthoquinone Mannich bases HL exhibiting moderate to high cytotoxicity against cancer cell lines were studied in order to investigate their modes of DNA binding, in vitro DNA strand breaks, mechanism of topoisomerase (Topo I) inhibition and cellular accumulation. DNA model base studies have shown that complex 1a [Pt(HL1)Cl(2)] was capable of binding covalently to 9-ethylguanine (9-EtG) and 5'-GMP. (1)H NMR and mass spectrometry studies have shown that both chlorides were substituted by 9-EtG ligands, whereas 5'-GMP was able to replace only one chlorido ligand, due to steric hindrance. The chlorido Pt(2+) complexes [Pt(HL)Cl(2)] highly accumulate in prostate (PC-3) and melanoma (MDA-MB-435) cell lines, being able to induce DNA strand breaks in vitro and inhibit Topo I by a catalytic mode. On the other hand, the free 2-hydroxy-3-(aminomethyl)-1,4-naphthoquinones HL and the amino Pt(2+) complexes [Pt(L(-))(NH(3))(2)]NO(3) neither cause DNA strand breakage nor exhibit strong DNA interaction, nevertheless the latter were also found to be catalytic inhibitors of Topo I at 100μM. Thus, coordination of the Mannich bases HL to the "PtCl(2)" fragment substantially affects the chemical and biophysical properties of the pro-ligands, leading to an improvement of their DNA binding properties and generating compounds that cleave DNA and catalytically inhibit Topo I. Finally, the high cytotoxicity exhibited by the free (uncomplexed) 2-hydroxy-3-(aminomethyl)-1,4-naphthoquinones might be associated with their decomposition in solution, which is not observed for the Pt(2+) complexes.
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Affiliation(s)
- Amanda P Neves
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA 23284, USA
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Brabec V, Malina J, Margiotta N, Natile G, Kasparkova J. Thermodynamic and mechanistic insights into translesion DNA synthesis catalyzed by Y-family DNA polymerase across a bulky double-base lesion of an antitumor platinum drug. Chemistry 2012; 18:15439-48. [PMID: 23065963 DOI: 10.1002/chem.201202117] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Indexed: 01/10/2023]
Abstract
To determine how the Y-family translesion DNA polymerase η (Polη) processes lesions remains fundamental to understanding the molecular origins of the mutagenic translesion bypass. We utilized model systems employing a DNA double-base lesion derived from 1,2-GG intrastrand cross-links of a new antitumor Pt(II) complex containing a bulky carrier ligand, namely [PtCl(2)(cis-1,4-dach)] (DACH=diaminocyclohexane). The catalytic efficiency of Polη for the insertion of correct dCTP, with respect to the other incorrect nucleotides, opposite the 1,2-GG cross-link was markedly reduced by the DACH carrier ligand. This reduced efficiency of Polη to incorporate the correct dCTP could be due to a more extensive DNA unstacking and deformation of the minor groove induced in the DNA by the cross-link of bulky [PtCl(2)(cis-1,4-dach)]. The major products of the bypass of this double-base lesion produced by [PtCl(2)(cis-1,4-dach)] by Polη resulted from misincorporation of dATP opposite the platinated G residues. The results of the present work support the thesis that this misincorporation could be due to sterical effects of the bulkier 1,4-DACH ligand hindering the formation of the Polη-DNA-incoming nucleotide complex. Calorimetric analysis suggested that thermodynamic factors may contribute to the forces that governed enhanced incorporation of the incorrect dATP by Polη as well.
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Affiliation(s)
- Viktor Brabec
- Department of Molecular Biophysics and Pharmacology, Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, 61265 Brno, Czech Republic
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31
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Shehata MR, Shoukry MM, Ragab MS. Synthesis and structural characterization of Pd(N,N-dimethylaminopropylamine)Cl2 complex--the interaction with bio-relevant ligands with reference to the effect of cysteine on the deactivation of metal-based drug. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:809-814. [PMID: 22925907 DOI: 10.1016/j.saa.2012.07.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 07/19/2012] [Accepted: 07/26/2012] [Indexed: 06/01/2023]
Abstract
The synthesis and X-ray structural characterization of Pd(DMPA)Cl(2) complex, where DMPA=N,N-dimethylaminopropylamine, is reported. The complex crystallizes in the space group P2(1)/c, a=8.8923(4), b=10.9050(5), c=11.5006(7) Å, β=120.00(18)°, V=948.25(8) Å(3), Z=4. The palladium centre has a typical square-planar geometry with a tetrahedral distortion. Stoichiometry and stability constants of the complexes formed between [Pd(DMPA)(H(2)O)(2)](2+) and some selected DNA constituents and cytsteine are investigated at 25 °C and at constant 0.1M ionic strength. The concentration distribution diagrams of the various species formed are evaluated. The equilibrium constants for the displacement of coordinated ligands as inosine by cysteine are calculated. The results are expected to contribute to the chemistry of tumour therapy.
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Affiliation(s)
- Mohamed R Shehata
- Department of Chemistry, Faculty of Science, University of Cairo, Egypt
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Margiotta N, Marzano C, Gandin V, Osella D, Ravera M, Gabano E, Platts JA, Petruzzella E, Hoeschele JD, Natile G. Revisiting [PtCl₂(cis-1,4-DACH)]: an underestimated antitumor drug with potential application to the treatment of oxaliplatin-refractory colorectal cancer. J Med Chem 2012; 55:7182-92. [PMID: 22788918 DOI: 10.1021/jm3006838] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Although the encouraging antitumor activity of [PtCl(2)(cis-1,4-DACH)] (1; DACH = diaminocyclohexane) was shown in early studies almost 20 years ago, the compound has remained nearly neglected. In contrast, oxaliplatin, containing the isomeric 1(R),2(R)-DACH carrier ligand, enjoys worldwide clinic application as a most important therapeutic agent in the treatment of colorectal cancer. By extending the investigation to human chemotherapy-resistant cancer cells, we have demonstrated the real effectiveness of 1 in circumventing cisplatin and oxaliplatin resistance in LoVo colon cancer cells. The uptake of compound 1 by the latter cells was similar to that of sensitive LoVo cells. This is not the case for all other compounds considered in this investigation. Interaction with double-stranded DNA, investigated by a biosensor assay and by quantum mechanical/molecular mechanical geometry optimization of the 1,2-GG intrastrand cross-link, does not show significant differences between 1 and oxaliplatin. However, the DNA adducts of 1 are removed from repair systems with lower efficiency and are more effective in inhibiting DNA and RNA polymerase.
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Affiliation(s)
- Nicola Margiotta
- Dipartimento Farmaco-Chimico, Università di Bari "A. Moro", via E. Orabona 4, 70125 Bari, Italy.
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33
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Shoukry MM, Hassouna M, Mahmoud R. Palladium(II) complex taken as a model of an antitumour agent: Synthesis and equilibrium investigation involving biologically relevant ligands. CR CHIM 2012. [DOI: 10.1016/j.crci.2011.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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34
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Patel M, Gandhi DS, Parmar PA, Bhatt BS, Patidar AP. Synthesis, Characterization, Covalent Binding, and Degree of Unwinding of Platinum(II) Bipyridine Complexes. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201100466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Margiotta N, Ranaldo R, Intini FP, Natile G. Cationic intermediates in oxidative addition reactions of Cl2 to [PtCl2(cis-1,4-DACH)]. Dalton Trans 2011; 40:12877-85. [PMID: 22064914 DOI: 10.1039/c1dt11232e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidative addition and reductive elimination are fundamental processes in transition-metal chemistry. New interest in this field has been generated by the exploitation of platinum(IV) complexes as antitumor drugs. The two extra ligands can be used to render these species more resistant to attack by biological nucleophiles compared to their platinum(II) counterparts, to anchor additional pharmacologically active moieties, or, finally, to target the drug to specific sites by conferring responsiveness to some type of chemotaxis. On the other hand, platinum(IV) species are considered to be prodrugs and to require reduction to Pt(II) to become active. Thus, reductive elimination promoted by biological reducing agents becomes an important issue and it too could be exploited for targeting purposes. In this paper, we investigated the oxidation step in more detail and shown that, independent of the solvent used, a solvent molecule assists the reaction by entering in a trans position with respect to the attacking oxidant. In the case of bifunctional solvent molecules, such as dimethylsulfoxide, both S- and O-coordinated species are formed, the latter being thermodynamically favored. The substitution of the axially coordinated solvent molecule by a free chloride ion is found to be quite slow in organic solvents, as well as in water. It is also shown that the intermediate solvato-species can be exploited for binding just one molecule of another substrate in the axial position.
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Affiliation(s)
- Nicola Margiotta
- Dipartimento Farmaco-Chimico, Università degli Studi di Bari A. Moro, via E. Orabona 4, 70125, Bari, Italy.
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Margiotta N, Ostuni R, Piccinonna S, Natile G, Zanellato I, Boidi CD, Bonarrigo I, Osella D. Platinum–bisphosphonate complexes have proven to be inactive chemotherapeutics targeted for malignant mesothelioma because of inappropriate hydrolysis. J Inorg Biochem 2011; 105:548-57. [DOI: 10.1016/j.jinorgbio.2010.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 12/23/2010] [Accepted: 12/23/2010] [Indexed: 01/05/2023]
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Complex formation reactions of palladium(II)-1,3-diaminopropane with various biologically relevant ligands. Kinetics of hydrolysis of glycine methyl ester through complex formation. OPEN CHEM 2010. [DOI: 10.2478/s11532-010-0057-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractThe interaction of [Pd(DAP)(H2O)2]2+ (DAP = 1,3-diaminopropane) with some selected bio-relevant ligands, containing different functional groups, were investigated. The ligands used are dicarboxylic acids, amino acids, peptides and DNA constituents. Stoichiometry and stability constants of the complexes formed are reported at 25°C and 0.1 M ionic strength. The results show the formation of 1:1 complexes with amino acids and dicarboxylic acids. The effect of chelate ring size of the dicarboxylic acid complexes on their stability constants is examined. Peptides form both 1:1 complexes and the corresponding deprotonated amide species. DNA constituents form 1:1 and 1:2 complexes. The effect of dioxane on the acid dissociation constants of CBDCA and the formation constant of its complex with Pd(DAP)2+ was reported. The kinetics of hydrolysis of glycine methyl ester bound to [Pd(DAP)(H2O)2]2+ was studied at 25°C and 0.1M ionic strength.
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Tamasi G, Casolaro M, Magnani A, Sega A, Chiasserini L, Messori L, Gabbiani C, Valiahdi SM, Jakupec MA, Keppler BK, Hursthouse MB, Cini R. New platinum-oxicam complexes as anti-cancer drugs. Synthesis, characterization, release studies from smart hydrogels, evaluation of reactivity with selected proteins and cytotoxic activity in vitro. J Inorg Biochem 2010; 104:799-814. [PMID: 20447694 DOI: 10.1016/j.jinorgbio.2010.03.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 03/17/2010] [Accepted: 03/19/2010] [Indexed: 10/19/2022]
Abstract
The reaction of aqueous cis-[Pt(NH(3))(2)(H(2)O)(2)](NO(3))(2) with Na(+)HMEL(-) (H(2)MEL, meloxicam, 4-hydroxy-2-methyl-N-(5-methyl-1,3-thiazol-2-yl)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide), and Na(+)HISO(-) (H(2)ISO, isoxicam, 4-hydroxy-2-methyl-N-(5-methylisoxazol-3-yl)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide) at pH 7 produced micro-crystalline cis-[Pt(NH(3))(2)(N(1')-HMEL)(2)], 5 and cis-[Pt(NH(3))(2)(N(1')-HISO)(2)], 6. The X-ray diffraction structure of 5 shows two HMEL(-) anions donating through the thiazole nitrogen atoms and adopting a head-to-tail (HT) conformation. The (1)H NMR spectrum for 5 from DMSO-d(6) shows inertness of the complex up to at least 24h. Delivery studies for 5 and 6 from vinyl hydrogel based on L-phenylalanine (pH 6.5, 25 degrees C) show that concentrations of complexes ranging between 2.5 and 5 microM can be reached after a day. Compounds 5 and 6 show strong anti-proliferative effects on CH1 cells (ovarian carcinoma, human) in vitro, IC(50) values being 0.60 and 0.37 microM, respectively (0.16 microM for reference, cis-diamminodichloridoplatinum(II), cisplatin). ESI-MS measurements clearly documented that both 5 and 6 form adducts with the three model proteins ubiquitin (UBI), cytochrome c (CYT C) and superoxide dismutase (SOD), the HISO(-) complex being significantly more effective than the HMEL(-) one. Density functional methods help in finding rationale for the easiest dissociation of Pt-H(2)ISO/HISO bonds when compared to the Pt-N(1)(')-H(2)MEL/N(1)(')-HMEL linkages.
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Affiliation(s)
- Gabriella Tamasi
- Department of Chemistry, Università di Siena, Via Aldo Moro 2, I-53100 Siena, Italy
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Rigamonti L, Forni A, Manassero M, Manassero C, Pasini A. Cooperation between cis and trans influences in cis-Pt(II)(PPh(3))(2) complexes: structural, spectroscopic, and computational studies. Inorg Chem 2010; 49:123-35. [PMID: 19950913 DOI: 10.1021/ic901510m] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The relevance of cis and trans influences of some anionic ligands X and Y in cis-[PtX(2)(PPh(3))(2)] and cis-[PtXY(PPh(3))(2)] complexes have been studied by the X-ray crystal structures of several derivatives (X(2) = (AcO)(2) (3), (NO(3))(2) (5), Br(2) (7), I(2) (11); and XY = Cl(AcO) (2), Cl(NO(3)) (4), and Cl(NO(2)) (13)), density functional theory (DFT) calculations, and one bond Pt-P coupling constants, (1)J(PtP). The latter have allowed an evaluation of the relative magnitude of both influences. It is concluded that such influences act in a cooperative way and that the cis influence is not irrelevant when rationalizing the (1)J(PtP) values, as well as the experimental Pt-P bond distances. On the contrary, in the optimized geometries, evaluated through B3LYP/def2-SVP calculations, the cis influence was not observed, except for compounds ClPh (21), Ph(2) (22), and, to a lesser extent, Cl(NO(2)) (13) and (NO(2))(2) (14). A natural bond order analysis on the optimized structures, however, has shown how the cis influence can be related to the s-character of the Pt hybrid orbital involved in the Pt-P bonds and the net atomic charge on Pt. We have also found that in the X-ray structures of cis-[PtX(2)(PPh(3))(2)] complexes the two Pt-X and the two Pt-P bond lengths are different each other and are related to the conformation of the phosphine groups, rather than to the crystal packing, since this feature is observed also in the optimized geometries.
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Affiliation(s)
- Luca Rigamonti
- Università degli Studi di Milano, Dipartimento di Chimica Inorganica, Metallorganica e Analitica Lamberto Malatesta, via Venezian 21, 20133 Milano, Italy
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Cytotoxicity, cellular uptake, glutathione and DNA interactions of an antitumor large-ring Pt II chelate complex incorporating the cis-1,4-diaminocyclohexane carrier ligand. Biochem Pharmacol 2010; 79:552-64. [PMID: 19782655 DOI: 10.1016/j.bcp.2009.09.019] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Revised: 08/28/2009] [Accepted: 09/18/2009] [Indexed: 12/20/2022]
Abstract
Earlier studies have described promising antitumor activity of a large-ring chelate complex [PtCl(2)(cis-1,4-DACH)] (DACH=diaminocyclohexane). Encouraging antitumor activity of this analogue of cisplatin prompted us to perform studies focused on the mechanistic basis of pharmacological effects of this complex. Four early steps in the mechanism of biological activity of cisplatin have been delineated: cell entry, reactions with sulfur-containing compounds, platinum-DNA binding along with processing platinated DNA by proteins (enzymes) and DNA repair. Here, we describe comparative experiments (involving also cisplatin) revealing: (i) improved cytotoxicity (3.4-5.4-fold) of [PtCl(2)(cis-1,4-DACH)] in human tumor ovarian cell lines; (ii) enhanced cellular uptake (approximately 1.5-fold) of [PtCl(2)(cis-1,4-DACH)]; (iii) somewhat enhanced rate of reactions of [PtCl(2)(cis-1,4-DACH)] with glutathione (approximately 1.5-fold), but a similar rate of reactions with metallothionenin-2; (iv) enhanced rate of DNA binding of [PtCl(2)(cis-1,4-DACH)] in cell-free media (approximately 2-fold); (v) similar sequence preference of DNA binding of [PtCl(2)(cis-1,4-DACH)] in cell-free media; (vi) identical DNA interstrand cross-linking efficiency (6%); (vii) similar bending (32 degrees) and enhanced local unwinding (approximately 1.5-fold) induced in DNA by the major 1,2-GG-intrastrand cross-link; (viii) markedly enhanced inhibiting effects of DNA adducts of [PtCl(2)(cis-1,4-DACH)] on processivity of DNA polymerase; and (ix) a slightly lower efficiency of DNA repair systems to remove the adducts of [PtCl(2)(cis-1,4-DACH)] from DNA.
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Shehata MR, Shoukry MM, Abdel-Shakour FH, van Eldik R. Equilibrium Studies on Complex-Formation Reactions of Pd[(2-(2-aminoethyl)pyridine)(H2O)2]2+with Ligands of Biological Significance and Displacement Reactions of DNA Constituents. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900352] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Chifotides HT, Dunbar KR. Head-to-head right-handed cross-links of the antitumor-active bis(mu-N,N'-di-p-tolylformamidinato)dirhodium(II,II) unit with the dinucleotides d(GpA) and d(ApG). Chemistry 2009; 14:9902-13. [PMID: 18846602 DOI: 10.1002/chem.200801139] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Reactions of cis-[Rh(2)(DTolF)(2)(NCCH(3))(6)](BF(4))(2) with the dinucleotides d(GpA) and d(ApG) proceed to form [Rh(2)(DTolF)(2){d(GpA)}] and [Rh(2)(DTolF)(2){d(ApG)}], respectively, with bridging purine bases spanning the Rh-Rh unit in the equatorial positions. Both dirhodium adducts exhibit head-to-head (HH) arrangement of the bases, as indicated by the presence of H8/H8 NOE cross-peaks in the 2D ROESY NMR spectra. The guanine bases bind to the dirhodium core at positions N7 and O6, a conclusion that is supported by the absence of N7 protonation at low pH values and the notable increase in the acidity of the guanine N1H sites (pK(a) approximately 7.4 in 4:1 CD(3)CN/D(2)O), inferred from the pH-dependence titrations of the guanine H8 proton resonances. In both dirhodium adducts, the adenine bases coordinate to the metal atoms through N6 and N7, which induces stabilization of the rare imino tautomer of the bases with a concomitant substantial decrease in the basicity of the N1H adenine sites (pK(a) approximately 7.0-7.1 in 4:1 CD(3)CN/D(2)O), as compared to the imino form of free adenosine. The presence of the adenine bases in the rare imino form is further corroborated by the observation of DQF-COSY H2/N1H and ROE N1H/N6H cross-peaks in the 2D NMR spectra of [Rh(2)(DTolF)(2){d(GpA)}] and [Rh(2)(DTolF)(2){d(ApG)}] in CD(3)CN at -38 degrees C. The 2D NMR spectroscopic data and the molecular modeling results suggest the presence of right-handed variants, HH1R, in solution for both adducts (HH1R refers to the relative base canting and the direction of propagation of the phosphodiester backbone with respect to the 5' base). Complete characterization of [Rh(2)(DTolF)(2){d(GpA)}] and [Rh(2)(DTolF)(2){d(ApG)}] by 2D NMR spectroscopy and molecular modeling supports anti-orientation of the sugar residues for both adducts about the glycosyl bonds as well as N- and S-type conformations for the 5'- and 3'-deoxyribose residues, respectively.
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Affiliation(s)
- Helen T Chifotides
- Department of Chemistry, Texas A& M University, College Station, TX 77843, USA
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Margiotta N, Ostuni R, Gandin V, Marzano C, Piccinonna S, Natile G. Synthesis, characterization, and cytotoxicity of dinuclear platinum-bisphosphonate complexes to be used as prodrugs in the local treatment of bone tumours. Dalton Trans 2009:10904-13. [DOI: 10.1039/b919721d] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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