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Bakhonsky VV, Pashenko AA, Becker J, Hausmann H, De Groot HJM, Overkleeft HS, Fokin AA, Schreiner PR. Synthesis and antiproliferative activity of hindered, chiral 1,2-diaminodiamantane platinum(II) complexes. Dalton Trans 2021; 49:14009-14016. [PMID: 33078783 DOI: 10.1039/d0dt02391d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Platinum-based antineoplastic agents play a major role in the treatment of numerous types of cancer. A new bulky, lipophilic, and chiral ligand based on 1,2-diaminodiamantane in both of its enantiomeric forms was employed for the preparation of new platinum(ii) complexes with chloride and oxalate ligands. The dichloride complexes have a higher solubility and were evaluated as anti-proliferation agents for human ovarian cancer cell lines A2780 and cisplatin-resistant A2780cis. Its R,R-enantiomer showed increased efficacy compared to cisplatin for both cancer cell lines. A chromatographic approach was used to estimate the solvent partition coefficient of the dichloride complex. The binding of diamondoid-based platinum complexes to nucleotides was tested for both enantiomers with guanosine monophosphate (GMP) and deoxyguanosine monophosphate (dGMP) and occurs at a similar or faster rate for both isomers compared to cisplatin despite greatly increased steric demand. These findings highlight the potential in 1,2-diaminodiamantane as a viable pharmacophore.
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Affiliation(s)
- Vladyslav V Bakhonsky
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany. and Department of Organic Chemistry, Igor Sikorsky Kiev Polytechnic Institute, Pobedy Ave. 37, 03056 Kiev, Ukraine.
| | - Aleksander A Pashenko
- Department of Organic Chemistry, Igor Sikorsky Kiev Polytechnic Institute, Pobedy Ave. 37, 03056 Kiev, Ukraine. and Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300RA Leiden, The Netherlands
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-Universität, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Heike Hausmann
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany.
| | - Huub J M De Groot
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300RA Leiden, The Netherlands
| | - Herman S Overkleeft
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300RA Leiden, The Netherlands
| | - Andrey A Fokin
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany. and Department of Organic Chemistry, Igor Sikorsky Kiev Polytechnic Institute, Pobedy Ave. 37, 03056 Kiev, Ukraine.
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany and Center for Materials Research (LaMa), Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany.
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2
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Development and Validation of Liquid Chromatography-Based Methods to Assess the Lipophilicity of Cytotoxic Platinum(IV) Complexes. INORGANICS 2018. [DOI: 10.3390/inorganics6040130] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Lipophilicity is a crucial parameter for drug discovery, usually determined by the logarithmic partition coefficient (Log P) between octanol and water. However, the available detection methods have restricted the widespread use of the partition coefficient in inorganic medicinal chemistry, and recent investigations have shifted towards chromatographic lipophilicity parameters, frequently without a conversion to derive Log P. As high-performance liquid chromatography (HPLC) instruments are readily available to research groups, a HPLC-based method is presented and validated to derive the partition coefficient of a set of 19 structurally diverse and cytotoxic platinum(IV) complexes exhibiting a dynamic range of at least four orders of magnitude. The chromatographic lipophilicity parameters φ0 and Log kw were experimentally determined for the same set of compounds, and a correlation was obtained that allows interconversion between the two lipophilicity scales, which was applied to an additional set of 34 platinum(IV) drug candidates. Thereby, a φ0 = 58 corresponds to Log P = 0. The same approaches were successfully evaluated to determine the distribution coefficient (Log D) of five ionisable platinum(IV) compounds to sample pH-dependent effects on the lipophilicity. This study provides straight-forward HPLC-based methods to determine the lipophilicity of cytotoxic platinum(IV) complexes in the form of Log P and φ0 that can be interconverted and easily expanded to other metal-based compound classes.
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3
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Gabano E, Ravera M, Trivero F, Tinello S, Gallina A, Zanellato I, Gariboldi MB, Monti E, Osella D. The cisplatin-based Pt(iv)-diclorofibrato multi-action anticancer prodrug exhibits excellent performances also under hypoxic conditions. Dalton Trans 2018; 47:8268-8282. [DOI: 10.1039/c7dt04614f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The cisplatin/clofibrato combos are multi-action Pt(iv) complexes active on a panel of human tumor cell lines, also under hypoxic conditions.
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Affiliation(s)
- Elisabetta Gabano
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Mauro Ravera
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Francesca Trivero
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Stefano Tinello
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Andrea Gallina
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Ilaria Zanellato
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Marzia B. Gariboldi
- Dipartimento di Biotecnologie e Scienze della Vita
- Università dell'Insubria
- 21052 Busto Arsizio
- Italy
| | - Elena Monti
- Dipartimento di Biotecnologie e Scienze della Vita
- Università dell'Insubria
- 21052 Busto Arsizio
- Italy
| | - Domenico Osella
- Dipartimento di Scienze e Innovazione Tecnologica
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
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4
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Dou YN, Chaudary N, Chang MC, Dunne M, Huang H, Jaffray DA, Milosevic M, Allen C. Tumor microenvironment determines response to a heat-activated thermosensitive liposome formulation of cisplatin in cervical carcinoma. J Control Release 2017; 262:182-191. [PMID: 28760449 DOI: 10.1016/j.jconrel.2017.07.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/25/2017] [Accepted: 07/28/2017] [Indexed: 01/02/2023]
Abstract
Significant heterogeneity in the tumor microenvironment of human cervical cancer patients is known to challenge treatment outcomes in this population. The current standard of care for cervical cancer patients is radiation therapy and concurrent cisplatin (CDDP) chemotherapy. Yet this treatment strategy fails to control loco-regional disease in 10-30% of patients. In order to improve the loco-regional control rate, a thermosensitive liposome formulation of CDDP (HTLC) was developed to increase local concentrations of drug in response to mild hyperthermia (HT). The HTLC formulation in combination with local HT demonstrated a significant therapeutic advantage in comparison to free drug and Lipoplatin™ in ME-180 and SiHa xenograft models of human cervical cancer, as well as in four distinct cervical patient-derived xenograft models. Differential response to HTLC+HT treatment was observed between the ME-180 and SiHa tumor models. Tumor doubling time, in vitro cell sensitivity, and tumor drug accumulation were found to be non-predictive of treatment efficacy. Rather, tumor microenvironment parameters, in particular elevated levels of both tumor hypoxia and associated stromal content, were found to serve as the overriding factors that limit drug efficacy. The prognostic value of these markers may enable stratification of cervical cancer patients for implementation of personalized medicine in the clinical setting.
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Affiliation(s)
- Yannan N Dou
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Naz Chaudary
- Ontario Cancer Institute, Princess Margaret Cancer Center and The Campbell Family Institute for Cancer Research, Toronto, ON M5G 0A3, Canada
| | - Martin C Chang
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Michael Dunne
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Huang Huang
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON M5T 3M7, Canada
| | - David A Jaffray
- Techna Institute, University Health Network, Toronto, ON M5G 1L5, Canada; Department of Radiation Oncology, University of Toronto, ON M5S 3E2, Canada
| | - Michael Milosevic
- Department of Radiation Oncology, University of Toronto, ON M5S 3E2, Canada; Radiation Medicine Program, Princess Margaret Cancer Center, University Health Network, Toronto, ON M5G 2M9, Canada
| | - Christine Allen
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada.
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5
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García-Ramos JC, Vértiz-Serrano G, Macías-Rosales L, Galindo-Murillo R, Toledano-Magaña Y, Bernal JP, Cortés-Guzmán F, Ruiz-Azuara L. Isomeric Effect on the Pharmacokinetic Behavior of Anticancer CuIIMixed Chelate Complexes: Experimental and Theoretical Approach. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601199] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Juan Carlos García-Ramos
- Departamento de Fisicoquímica; Instituto de Química; Universidad Nacional Autónoma de México; Avenida Universidad 3000, Ciudad Universitaria 04510 Ciudad de México México
| | - Guadalupe Vértiz-Serrano
- Departamento de Química Inorgánica y Nuclear; Facultad de Química; Universidad Nacional Autónoma de México; Avenida Universidad 3000, Ciudad Universitaria 04510 Ciudad de México México
| | - Lucia Macías-Rosales
- Departamento de Química Inorgánica y Nuclear; Facultad de Química; Universidad Nacional Autónoma de México; Avenida Universidad 3000, Ciudad Universitaria 04510 Ciudad de México México
| | - Rodrigo Galindo-Murillo
- Department of Medicinal Chemistry; L. S. Skaggs Pharmacy Institute; University of Utah; 84112 Salt Lake City Utah USA
| | - Yanis Toledano-Magaña
- Departamento de Química Inorgánica y Nuclear; Facultad de Química; Universidad Nacional Autónoma de México; Avenida Universidad 3000, Ciudad Universitaria 04510 Ciudad de México México
| | - Juan Pablo Bernal
- UNAM; Campus UNAM Juriquilla; Centro de Geociencias; Cd. Universitaria 04510 Ciudad de México México
| | - Fernando Cortés-Guzmán
- Departamento de Fisicoquímica; Instituto de Química; Universidad Nacional Autónoma de México; Avenida Universidad 3000, Ciudad Universitaria 04510 Ciudad de México México
| | - Lena Ruiz-Azuara
- Departamento de Química Inorgánica y Nuclear; Facultad de Química; Universidad Nacional Autónoma de México; Avenida Universidad 3000, Ciudad Universitaria 04510 Ciudad de México México
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6
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Alfonso S, González S, Higuera-Padilla AR, Vidal A, Fernández M, Taylor P, Urdanibia I, Reiber A, Otero Y, Castro W. A new complex of copper-phosphole. Synthesis, characterization and evaluation of biological activity. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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7
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Rajini A, Adepu AK, Chirra S, Venkatathri N. Porous palladium aminophosphates: synthesis, characterization, antimicrobial and cytotoxicity studies. RSC Adv 2015. [DOI: 10.1039/c5ra11923e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel palladium aminophosphates have been synthesized at room temperature in solvent free condition. They are characterized in detail. Their antimicrobial and cytotoxicity studies were carried out.
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Affiliation(s)
- Anumula Rajini
- Department of Chemistry
- National Institute of Technology
- Warangal 506 004
- India
| | - Ajay Kumar Adepu
- Department of Chemistry
- National Institute of Technology
- Warangal 506 004
- India
| | - Suman Chirra
- Department of Chemistry
- National Institute of Technology
- Warangal 506 004
- India
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8
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Nierzwicki L, Wieczor M, Censi V, Baginski M, Calucci L, Samaritani S, Czub J, Forte C. Interaction of cisplatin and two potential antitumoral platinum(ii) complexes with a model lipid membrane: a combined NMR and MD study. Phys Chem Chem Phys 2015; 17:1458-68. [DOI: 10.1039/c4cp04360j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Multinuclear NMR and MD calculations highlighted the different interactions of cisplatin and two potential antitumoral Pt(ii) complexes with a model membrane.
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Affiliation(s)
- L. Nierzwicki
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - M. Wieczor
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - V. Censi
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56126 Pisa
- Italy
| | - M. Baginski
- Department of Pharmaceutical Technology and Biochemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - L. Calucci
- Institute of the Chemistry of Organometallic Compounds
- CNR
- 56124 Pisa
- Italy
| | - S. Samaritani
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- 56126 Pisa
- Italy
| | - J. Czub
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - C. Forte
- Institute of the Chemistry of Organometallic Compounds
- CNR
- 56124 Pisa
- Italy
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9
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Würtenberger I, Angermaier B, Kircher B, Gust R. Synthesis and In Vitro Pharmacological Behavior of Platinum(II) Complexes Containing 1,2-Diamino-1-(4-fluorophenyl)-2-alkanol Ligands. J Med Chem 2013; 56:7951-64. [DOI: 10.1021/jm400967z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Irene Würtenberger
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, CCB − Centrum for Chemistry and Biomedicine, Innrain 80/82, 6020 Innsbruck, Austria
| | - Bernhard Angermaier
- Institute
of Pharmacy, University of Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Brigitte Kircher
- Immunobiology and Stem Cell Laboratory, Department of Internal Medicine V (Hematology & Oncology), Innsbruck Medical University, Anichstr. 35, 6020 Innsbruck, Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry, Institute of Pharmacy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, CCB − Centrum for Chemistry and Biomedicine, Innrain 80/82, 6020 Innsbruck, Austria
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10
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Understanding trans platinum complexes as potential antitumor drugs beyond targeting DNA. J Inorg Biochem 2012; 114:106-12. [DOI: 10.1016/j.jinorgbio.2012.06.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 06/05/2012] [Accepted: 06/05/2012] [Indexed: 11/20/2022]
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11
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Özçelik AB, Utku S, Gümüş F, Keskin AÇ, Açık L, Yılmaz Ş, Özgüngör A. Cytotoxicity and DNA interactions of some platinum(II) complexes with substituted benzimidazole ligands. J Enzyme Inhib Med Chem 2012; 27:413-8. [DOI: 10.3109/14756366.2011.594046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Azime Berna Özçelik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Gazi,
Ankara, Turkey
| | - Semra Utku
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Mersin,
Mersin, Turkey
| | - Fatma Gümüş
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Gazi,
Ankara, Turkey
| | - Ayten Çelebi Keskin
- Department of Biology, Faculty of Art and Science, University of Kırıkkale,
Kırıkkale, Turkey
| | - Leyla Açık
- Department of Biology, University of Gazi,
Ankara, Turkey
| | - Şükran Yılmaz
- Cell and Virus Bank Department, Foot and Mouth Disease Institute,
Ankara, Turkey
| | - Adeviye Özgüngör
- Cell and Virus Bank Department, Foot and Mouth Disease Institute,
Ankara, Turkey
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12
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Eleventh international symposium on radiopharmaceutical chemistry: Abstracts. J Labelled Comp Radiopharm 2012. [DOI: 10.1002/jlcr.2580370301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Miljković D, Poljarević JM, Petković F, Blaževski J, Momčilović M, Nikolić I, Saksida T, Stošić-Grujičić S, Grgurić-Šipka S, Sabo TJ. Novel octahedral Pt(IV) complex with di-n-propyl-(S,S)-ethylenediamine-N,N′-di-2-(3-cyclohexyl)propanoato ligand exerts potent immunomodulatory effects. Eur J Med Chem 2012; 47:194-201. [DOI: 10.1016/j.ejmech.2011.10.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 10/18/2011] [Accepted: 10/21/2011] [Indexed: 11/15/2022]
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14
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A quantitative structure–activity approach for lipophilicity estimation of antitumor complexes of different metals using microemulsion electrokinetic chromatography. J Pharm Biomed Anal 2011; 55:409-13. [DOI: 10.1016/j.jpba.2011.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 02/09/2011] [Accepted: 02/10/2011] [Indexed: 11/22/2022]
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15
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Juribašić M, Molčanov K, Kojić-Prodić B, Bellotto L, Kralj M, Zani F, Tušek-Božić L. Palladium(II) complexes of quinolinylaminophosphonates: Synthesis, structural characterization, antitumor and antimicrobial activity. J Inorg Biochem 2011; 105:867-79. [DOI: 10.1016/j.jinorgbio.2011.03.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 03/16/2011] [Accepted: 03/16/2011] [Indexed: 10/18/2022]
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16
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Westendorf AF, Zerzankova L, Salassa L, Sadler PJ, Brabec V, Bednarski PJ. Influence of pyridine versus piperidine ligands on the chemical, DNA binding and cytotoxic properties of light activated trans,trans,trans-[Pt(N3)2(OH)2(NH3)(L)]. J Inorg Biochem 2011; 105:652-62. [DOI: 10.1016/j.jinorgbio.2011.01.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 01/03/2011] [Accepted: 01/07/2011] [Indexed: 12/21/2022]
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17
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Platinum(II) complexes of 8-quinolylmethylphosphonates: Synthesis, characterization and antitumour activity. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.05.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Al-Labadi A, Zeller KP, Machulla HJ. Efficient preparation of 6-[18F]fluoroveratraldehyde, the precursor of the multi-step synthesis of [18F]FDOPA. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2006.94.3.143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Summary
As a clinically well established PET tracer, 6-[18F]fluoro-L-dopa is prepared by a multi-step synthesis if [18F]fluoride is to be used for labelling. The [18F] label is introduced in the first step, i.e. 6-[18F]fluoroveratraldehyde is prepared first with yields reported in the literature ranging between 20 and 50%. To obtain higher over-all yields in the synthesis of 6-[18F]fluoro-L-dopa, the 18F incorporation in the first step was optimised by determining the yield dependencies on solvent, concentration of the precursor, temperature and time of the reaction. Thus, the product is formed with a yield of 89 ± 2% (n = 15) when using 20 mg of 6-nitroveratraldehyde in 1 mL DMF at 140 °C within a reaction time of 10 min.
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19
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DFT-based QSAR and QSPR models of several cis-platinum complexes: solvent effect. J Comput Aided Mol Des 2009; 23:343-54. [DOI: 10.1007/s10822-009-9265-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Accepted: 03/01/2009] [Indexed: 10/21/2022]
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20
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Gümüş F, Eren G, Açık L, Çelebi A, Öztürk F, Yılmaz Ş, Saǧkan RI, Gür S, Özkul A, Elmalı A, Elerman Y. Synthesis, Cytotoxicity, and DNA Interactions of New Cisplatin Analogues Containing Substituted Benzimidazole Ligands. J Med Chem 2009; 52:1345-57. [DOI: 10.1021/jm8000983] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fatma Gümüş
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Gökçen Eren
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Leyla Açık
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Ayten Çelebi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Fatma Öztürk
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Şükran Yılmaz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Rahşan Ilıkçı Saǧkan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Sibel Gür
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Aykut Özkul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Ayhan Elmalı
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
| | - Yalçın Elerman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Gazi University, 06500 Ankara, Turkey, Department of Biology, Faculty of Art and Science, Kirikkale University, 71450 Kirikkale, Turkey, Cell and Virus Bank Department, Foot and Mouth Disease Institute, Ankara, Turkey, Department of Immunology, Gulhane Military Medicinal Academia, Ankara, Turkey, Department of Virology, Faculty of Veterinary Medicine,
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Calculation of lipophilicity for Pt(II) complexes: Experimental comparison of several methods. J Inorg Biochem 2008; 102:1424-37. [PMID: 18289687 DOI: 10.1016/j.jinorgbio.2007.12.029] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2007] [Revised: 12/17/2007] [Accepted: 12/21/2007] [Indexed: 11/20/2022]
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Tušek-Božić L, Juribašić M, Traldi P, Scarcia V, Furlani A. Synthesis, characterization and antitumor activity of palladium(II) complexes of monoethyl 8-quinolylmethylphosphonate. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.01.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Oldfield SP, Hall MD, Platts JA. Calculation of lipophilicity of a large, diverse dataset of anticancer platinum complexes and the relation to cellular uptake. J Med Chem 2007; 50:5227-37. [PMID: 17900102 DOI: 10.1021/jm0708275] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A quantitative structure--property relationship (QPSR) for the octanol--water partition of platinum complexes was constructed using molecular descriptors derived from density functional (DFT) calculations. A dataset of partition data for 64 complexes, consisting of 43 square-planar platinum(II) and 21 octahedral platinum(IV) complexes, was drawn from literature sources. Not only does this dataset include considerable structural diversity of complexes considered but also a variety of techniques for the measurement of partition coefficients. These data were modeled using descriptors drawn from electrostatic potentials and hardness/softness indices projected onto molecular surfaces. This required initial descriptor selection using a genetic algorithm approach, followed by partial least-squares regression against log Po/w data. In this way, a statistically robust model was constructed, with errors of similar size to the variation in log Po/w from multiple experimental measurements. Implications of lipophilicity for cellular accumulation of Pt-based drugs, and hence for design of new drugs, are discussed, as is the uptake of metabolites of cisplatin.
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Affiliation(s)
- Steven P Oldfield
- School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, U.K
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24
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Donadel OJ, Martín T, Martín VS, Villar J, Padrón JM. The tert-butyl dimethyl silyl group as an enhancer of drug cytotoxicity against human tumor cells. Bioorg Med Chem Lett 2005; 15:3536-9. [PMID: 15990300 DOI: 10.1016/j.bmcl.2005.05.126] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2005] [Revised: 05/16/2005] [Accepted: 05/18/2005] [Indexed: 11/26/2022]
Abstract
In this study, we synthesized a series of enantiomerically pure (2R,3S)-disubstituted tetrahydropyranes with diverse functional groups using known methodologies. In addition to the tert-butyl dimethyl silyl group, other common protecting groups for hydroxyl groups such as allyl, acetate, and benzoate were used to obtain appropriate derivatives. Pure compounds were evaluated in vitro against HL60 human leukemia cells and MCF7 human breast cancer cells. From the growth inhibition data a structure-activity relationship was obtained. Overall the results point to the relevant role of the tert-butyl dimethyl silyl group in the modulation of cytotoxic activity.
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Affiliation(s)
- Osvaldo J Donadel
- Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, C/ Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
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25
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Hall MD, Amjadi S, Zhang M, Beale PJ, Hambley TW. The mechanism of action of platinum(IV) complexes in ovarian cancer cell lines. J Inorg Biochem 2004; 98:1614-24. [PMID: 15458824 DOI: 10.1016/j.jinorgbio.2004.05.017] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2004] [Revised: 05/20/2004] [Accepted: 05/22/2004] [Indexed: 10/26/2022]
Abstract
The reduction potentials, lipophilicities, cellular uptake and cytotoxicity have been examined for two series of platinum(IV) complexes that yield common platinum(II) complexes on reduction: cis-[PtCl(4)(NH(3))(2)], cis,trans,cis-[PtCl(2)(OAc)(2)(NH(3))(2)], cis,trans,cis-[PtCl(2)(OH)(2)(NH(3))(2)], [PtCl(4)(en)], cis,trans-[PtCl(2)(OAc)(2)(en)] and cis,trans-[PtCl(2)(OH)(2)(en)] (en=ethane-1,2-diamine, OAc=acetate). As previously reported, the reduction occurs most readily when the axial ligand is chloride and least readily when it is hydroxide. The en series of complexes are marginally more lipophilic than their ammine analogues. The presence of axial chloride or acetate ligands results in a slighter higher lipophilicity compared with the platinum(II) analogue whereas hydroxide ligands lead to a substantially lower lipophilicity. The cellular uptake is similar for the platinum(II) species and their analogous tetrachloro complexes, but is substantially lower for the acetato and hydroxo complexes, resulting in a correlation with the reduction potential. The activities are also correlated with the reduction potentials with the tetrachloro complexes being the most active of the platinum(IV) series and the hydroxo being the least active. These results are interpreted in terms of reduction, followed by aquation reducing the amount of efflux from the cells resulting in an increase in net uptake.
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Affiliation(s)
- Matthew D Hall
- Centre for Heavy Metals Research, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
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26
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Feng L, De Dille A, Jameson VJ, Smith L, Dernell WS, Manning MC. Improved potency of cisplatin by hydrophobic ion pairing. Cancer Chemother Pharmacol 2004; 54:441-8. [PMID: 15490166 DOI: 10.1007/s00280-004-0840-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2003] [Accepted: 04/07/2004] [Indexed: 12/21/2022]
Abstract
Cisplatin is one of the most widely used and effective chemotherapeutic drugs ever discovered against certain forms of cancer. However, its use is limited by toxicity. A more potent form might allow lower doses to be used and would diminish the toxicity. A new analog of cisplatin has been synthesized by stoichiometric replacement of the chloride ligands with the anionic surfactant, Aerosol OT (AOT). The new compound has a very low aqueous solubility (about 2 mg/l) and a log P value of 2.17, which is more than 4 log units higher than cisplatin itself, indicating a dramatic increase in hydrophobicity. While hydrophobic cisplatin analogs have been synthesized previously, this is the first one with readily dissociable ligands replacing the chlorides. The resultant AOT complex is able to penetrate cellular membranes more efficiently, resulting in a threefold to fivefold increase in intracellular platinum levels. These increased intracellular concentrations correlate with lower IC50 values in a number of cancer and normal cell lines. These findings suggest that further development of the AOT complex as a chemotherapeutic agent is warranted, given its marked increase in potency over the parent compound.
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Affiliation(s)
- Lixin Feng
- Animal Cancer Center, James L Voss Veterinary Teaching Hospital, Colorado State University, Fort Collins, USA
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27
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Kim YS, Song R, Chung HC, Jun MJ, Sohn YS. Coordination modes vs. antitumor activity: synthesis and antitumor activity of novel platinum(II) complexes of N -substituted amino dicarboxylic acids. J Inorg Biochem 2004; 98:98-104. [PMID: 14659638 DOI: 10.1016/j.jinorgbio.2003.09.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The trans-(+/-)-1,2-diaminocyclohexaneplatinum(II) complexes of multidentate L-glutamate (Glu) and L-aspartate (Asp) were prepared and their antitumor activity was examined in relation with their coordination modes. All these complexes were obtained as a mixture of (O,O')- and (O,N)-chelate isomers due to rapid isomerization of the initially formed (O,O')-isomer to the thermodynamically more stable (O,N)-isomer. The (O,O')/(O,N)-isomeric mixture with the mole ratio of 80/20 exhibited excellent antitumor activity while the pure (O,N)-isomer was only marginally active. Therefore, in order to prevent the linkage isomerization of the active (O,O')-isomer to the inactive (O,N)-isomer, we have designed N-substituted amino dicarboxylic acids as a leaving group and prepared a new series of complexes, [Pt(dach)(RGlu)] and [Pt(dach)(RAsp)] (dach=trans-(+/-)-1,2-diaminocyclohexane; R=acetyl (Ac), propionyl (Pro), pivaloyl (Piv), carbobenzyloxy (Cbz) or phthaloyl (Phth)) and characterized by means of elemental analyses, and 1H NMR, 195Pt NMR and IR spectroscopies. The N-substituted amino dicarboxylate ligands were found to coordinate to platinum(II) ion through only the (O,O')-chelation mode, and their Pt(II) complexes were chemically stable in aqueous solution. The present Pt(II) complexes of N-substituted amino dicarboxylic acids showed excellent antitumor activity against both murine leukemia L1210 and human tumor cells. Especially, the highly hydrophobic N-phthaloylglutamate complex, [Pt(dach)(PhthGlu)], exhibited an outstanding in vitro activity (IC50=2.22 microM) on the human stomach cancer cells which are not responsive to cisplatin and carboplatin.
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Affiliation(s)
- Yeong-Sang Kim
- Department of Chemistry, Ewha Womans University, Seoul 120-750, Republic of Korea
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Robillard MS, Galanski M, Zimmermann W, Keppler BK, Reedijk J. (Aminoethanol)dichloroplatinum(II) complexes: influence of the hydroxyethyl moiety on 5'-GMP and DNA binding, intramolecular stability, the partition coefficient and anticancer activity. J Inorg Biochem 2002; 88:254-9. [PMID: 11897338 DOI: 10.1016/s0162-0134(01)00362-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The influence of tethered hydroxyl groups on the binding behavior of the three (aminoethanol)dichloroplatinum complexes, dichloro(N,N'-bis(2-hydroxyethyl)ethylenediamine)-platinum(II) (1), dichloro(N-(2-hydroxyethyl)ethylenediamine)platinum(II) (2) and cis-dichlorobis(2-hydroxyethylamine)platinum(II) (3) towards 5'-GMP and DNA was investigated by 1H NMR and r(b) measurements, respectively. At pH 7.2, the sequence of reactivity with 5'-GMP is 1>2>>3. Complex 3 reacts very slowly with 5'-GMP and DNA and the amount and lifetime of the intermediate 5'-GMP monoadduct are much larger than for 1 and 2. At pH 5.5, the reaction of 3 with 5'-GMP is markedly accelerated and very small amounts of monoadduct are observed, indicating a pH-dependent ability of the pendant hydroxyl group to interact with the platinum moiety. In addition, the effect of the hydroxyethyl functionality on octanol/water partitioning and in vitro anticancer activity was studied. No correlation between lipophilicity and anticancer activity was detected. Furthermore, the lipophilicity and anticancer activity could not be directly correlated to 5'-GMP or DNA binding activity.
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Affiliation(s)
- Marc S Robillard
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
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Platts JA, Hibbs DE, Hambley TW, Hall MD. Calculation of the hydrophobicity of platinum drugs. J Med Chem 2001; 44:472-4. [PMID: 11462986 DOI: 10.1021/jm001080k] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Models of the hydrophobicity of platinum drugs based on exposed surface areas of polar and nonpolar atoms are presented. For a total of 24 log P(oct) data, the best model resulted in a standard deviation of 0.35 over a range of more than 4 log units, with regression coefficients in broad agreement with previous models of log P(oct) for organic molecules. This model is used to compare log P(oct) to cell uptake for five platinum drugs and hence to establish an exponential relation between these parameters.
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Affiliation(s)
- J A Platts
- Department of Chemistry, Cardiff University, UK.
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31
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Tušek-Božić L, Komac M, Ćurić M, Lyčka A, D'Alpaos M, Scarcia V, Furlani A. Five-membered [C,N] and [N,O] metallocyclic complexes of palladium(II) with monoalkyl [α-(4-benzeneazoanilino)-N-benzyl]phosphonates: synthesis, characterization and antitumour activity. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00339-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Tusek-Bozić L, Furlani A, Scarcia V, De Clercq E, Balzarini J. Spectroscopic and biological properties of palladium(II) complexes of ethyl 2-quinolylmethylphosphonate. J Inorg Biochem 1998; 72:201-10. [PMID: 10065538 DOI: 10.1016/s0162-0134(98)10081-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Spectroscopic (1H NMR, UV-visible) and biological (cytostatic, antiviral activity) studies of palladium(II) complexes of monoethyl 2-quinolymethylphosphonate (2-Hmqmp): dihalide adducts trans-Pd(2-Hmqmp)2X2, chelate Pd(2-mqmp)2.2H2O and ion-pair salt complexes [2-H2mqmp]+[Pd(2-Hmqmp)X3]- (X = Cl, Br), have been carried out in order to determine structural and biological properties of these biologically interesting complex compounds. The complexes were evaluated in vitro for their cytostatic activity against murine L1210 and human KB and T-lymphoblast Molt4/C8 and CEM/0 cell lines, and the results obtained were compared with those obtained for the complexes of diethyl 2-quinolylmethylphosphonate (2-dqmp). The L1210 cell was the most responsive line and complexes of diester 2-dqmp were more active than complexes of monoester 2-Hmqmp. A good relationship was observed between the cytostatic activity of the complexes and their lypophilicity or solubility. Some complexes exhibited significant cell growth inhibitory effects, but none of the them was more cytostatic than cisplatin. Both 2-dqmp and 2-Hmqmp complexes were also evaluated in vitro for their antiviral activity in different assay systems, comprising a broad spectrum of DNA and RNA viruses, but no specific antiviral effects were noted. In addition, the complexes did not show any specific anti-HIV activity.
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Affiliation(s)
- L Tusek-Bozić
- Department of Physical Chemistry, Ruder Bosković Institute, Zagreb, Croatia.
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33
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Kokotos G, Theodorou V, Constantinou-Kokotou V, Gibbons WA, Roussakis C. Synthesis and in vitro cytotoxicity of lipophilic platinum(II) complexes. Bioorg Med Chem Lett 1998; 8:1525-30. [PMID: 9873383 DOI: 10.1016/s0960-894x(98)00256-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A number of lipophilic platinum(II) complexes of the general structures cis-[Pt(LA)2Cl2] and [Pt(LD)Cl2] were synthesised. Long chain amines (LA) and diamines (LD), prepared from lipidic amino acids, were used as ligands. The in vitro cytotoxicity of the complexes was evaluated against four cell lines (P388, NSCLC-N6, E39, M96). cis-Dichloro-bis(2-aminohexadecanol)platinum(II) was the most active against P388, NSCLC-N6 and E39 (IC50: 11 micrograms/ml, 25 micrograms/ml, 31 micrograms/ml), while dichloro(1,3-heptadecanediamine)platinum(II) presented the highest activity against M96 (IC50: 13 micrograms/ml).
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Affiliation(s)
- G Kokotos
- Department of Chemistry, University of Athens, Greece.
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Spectroscopic and thermal study of dialkyl (α-anilino-N-benzyl)phosphonates and their palladium(II) dichloride adducts. Polyhedron 1998. [DOI: 10.1016/s0277-5387(97)00340-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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1H NMR and vibrational spectra of cis-dichlorobis(cycloalkylamine)-platinum(II) complexes. Inorganica Chim Acta 1993. [DOI: 10.1016/s0020-1693(00)82822-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Dichlorobis(cycloalkylamine)platinum(II) complexes structure activity relationship on the human MDA-MB-231 breast cancer cell line. MONATSHEFTE FUR CHEMIE 1993. [DOI: 10.1007/bf00819526] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bednarski PJ. Relationships between the aqueous chemistry and the in vitro cytotoxic activities of mixed-amine cisplatin analogues. Biochem Pharmacol 1992; 43:2609-20. [PMID: 1632817 DOI: 10.1016/0006-2952(92)90150-h] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The possibility that variations in the cytotoxic activities of cisplatin analogues could be a result of differences in the aqueous chemistry of the compounds was investigated. A series of structurally related mixed-amine dichloroplatinum complexes (cis-coordinated with amine and various diphenylmethylamines and 1,2-diphenylethylamines) was prepared and selected physicochemical properties of the new compounds were characterized. Cytotoxicity was determined in two human breast cancer cell lines (MDA-MB-231 and MCF-7) and one human ovarian cancer cell line (SK-OV-3) by means of a microtiter assay. There is no apparent relationship between the hydrophobicities of the compounds and their cytotoxic potencies. There is no evidence for an inverse relationship between the aqueous stability of the dichloroplatinum complexes and cytotoxic potency, as has been reported for nitrogen mustards and some nitrosoureas. The differences in cytotoxic activity cannot be explained by inter-compound variations in the area under the concentration-time curves (AUC) of the dichloroplatinum complexes in culture medium. Thus, it appears that the differences in the cytotoxic potencies of this series of cisplatin analogues are related to factors other than dissimilarities in these physiochemical properties. Nevertheless, a relationship was found between the AUC of a dichloroplatinum complex in medium and the efficacy of the compound in the MCF-7 cell line. However, the AUC-efficacy relationship does not always hold in the MDA-MB-231 and SK-OV-3 cell lines. In these cells, treatment with a "high" bolus dose of platinum complex over finite exposure times is often less cytotoxic than treatment with lower doses of the same compound but over a continuous exposure time, although the cells are subjected to the same AUC of dichloroplatinum complex.
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Affiliation(s)
- P J Bednarski
- Institut für pharmazeutische Chemie II, Fakultät Chemie-Pharmazie, Universität Regensburg, Germany
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Butour JL, Alvinerie P, Souchard JP, Colson P, Houssier C, Johnson NP. Effect of the amine non-leaving group on the structure and stability of DNA complexes with cis-[Pt(R-NH2)2(NO3)2]. EUROPEAN JOURNAL OF BIOCHEMISTRY 1991; 202:975-80. [PMID: 1765105 DOI: 10.1111/j.1432-1033.1991.tb16458.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The antitumor compound cis-[Pt(NH3)2Cl2] (cisplatin), conserves two ammine ligands during the reaction with its cellular target DNA. Modifications of these non-leaving groups change the antineoplastic properties of this compound and its genotoxic effects. It is therefore of interest to determine the influence of non-leaving groups on the structure and stability of DNA in vitro. We have investigated platinum-DNA adducts formed by cis-[Pt(R-NH2)2(NO3)2] (where R-NH2 = NH3, methylamine, cyclobutylamine, cyclopentylamine and cyclohexylamine) as a function of DNA binding. All compounds quantitatively reacted with DNA in less than 1 h at 37 degrees C. They formed bifunctional adducts with adjacent nucleotides judging from the displacement of the intercalating molecule ethidium bromide, ultraviolet absorption spectroscopy and circular dichroism. Substitution of a H on the NH3 ligand by alkyl groups dramatically destabilized the platinum-DNA complex. Thermal stability decreased progressively with an increasing number of carbon atoms, delta tm = -4.4 degrees C for 3 cyclohexylamine-platinum-DNA adducts/1000 nucleotides, conditions where cisplatin had no effect. DNA adducts with cyclobutylamine and cyclohexylamine ligands inhibited the hydrolysis of platinum-DNA complexes by S1 nuclease. Km for the digestion of DNA containing these lesions was 2.3 times greater than for cisplatin, indicating steric inhibition of enzyme-substrate complex formation. These results show that the non-leaving groups of substituted cis-Pt(II) compounds may destabilize DNA and interfere with protein-DNA interactions. These perturbations may have consequences for the genotoxic and antitumor activities of platinum compounds.
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Affiliation(s)
- J L Butour
- Laboratoire de Pharmacologie et de Toxicologie Fondamentales, Centre National de la Recherche Scientifique, Toulouse, France
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