1
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Wang P, Yang Y, Wen H, Li D, Zhang H, Wang Y. Progress in construction and release of natural polysaccharide-platinum nanomedicines: A review. Int J Biol Macromol 2023; 250:126143. [PMID: 37544564 DOI: 10.1016/j.ijbiomac.2023.126143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/26/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
Natural polysaccharides are natural biomaterials that have become candidate materials for nano-drug delivery systems due to their excellent biodegradability and biocompatibility. Platinum (Pt) drugs have been widely used in the clinical therapy for various solid tumors. However, their extensive systemic toxicity and the drug resistance acquired by cancer cells limit the applications of platinum drugs. Modern nanobiotechnology provides the possibility for targeted delivery of platinum drugs to the tumor site, thereby minimizing toxicity and optimizing the efficacies of the drugs. In recent years, numerous natural polysaccharide-platinum nanomedicine delivery carriers have been developed, such as nanomicelles, nanospheres, nanogels, etc. Herein, we provide an overview on the construction and drug release of natural polysaccharide-Pt nanomedicines in recent years. Current challenges and future prospectives in this field are also put forward. In general, combining with irradiation and tumor microenvironment provides a significant research direction for the construction of natural polysaccharide-platinum nanomedicines and the release of responsive drugs in the future.
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Affiliation(s)
- Pengge Wang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China; College of Biological and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing City, Jiangsu Province 211816, China
| | - Yunxia Yang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China; Jiangsu Province Engineering Research Center of Agricultural Breeding Pollution Control and Resource, Yancheng Teachers University, Yancheng 224007, China; Jiangsu Key Laboratory for Bioresources of Saline Soils, Yancheng Teachers University, Yancheng 224007, China.
| | - Haoyu Wen
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China
| | - Dongqing Li
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China
| | - Hongmei Zhang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China
| | - Yanqing Wang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, China.
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2
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Ojha R, Junk PC, Bond AM, Deacon GB. Oxidation of the Platinum(II) Anticancer Agent [Pt{( p-BrC 6F 4)NCH 2CH 2NEt 2}Cl(py)] to Platinum(IV) Complexes by Hydrogen Peroxide. Molecules 2023; 28:6402. [PMID: 37687231 PMCID: PMC10490441 DOI: 10.3390/molecules28176402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
PtIV coordination complexes are of interest as prodrugs of PtII anticancer agents, as they can avoid deactivation pathways owing to their inert nature. Here, we report the oxidation of the antitumor agent [PtII(p-BrC6F4)NCH2CH2NEt2}Cl(py)], 1 (py = pyridine) to dihydroxidoplatinum(IV) solvate complexes [PtIV{(p-BrC6F4)NCH2CH2NEt2}Cl(OH)2(py)].H2O, 2·H2O with hydrogen peroxide (H2O2) at room temperature. To optimize the yield, 1 was oxidized in the presence of added lithium chloride with H2O2 in a 1:2 ratio of Pt: H2O2, in CH2Cl2 producing complex 2·H2O in higher yields in both gold and red forms. Despite the color difference, red and yellow 2·H2O have the same structure as determined by single-crystal and X-ray powder diffraction, namely, an octahedral ligand array with a chelating organoamide, pyridine and chloride ligands in the equatorial plane, and axial hydroxido ligands. When tetrabutylammonium chloride was used as a chloride source, in CH2Cl2, another solvate, [PtIV{(p-BrC6F4)NCH2CH2NEt2}Cl(OH)2(py)].0.5CH2Cl2,3·0.5CH2Cl2, was obtained. These PtIV compounds show reductive dehydration into PtII [Pt{(p-BrC6F4)NCH=CHNEt2}Cl(py)], 1H over time in the solid state, as determined by X-ray powder diffraction, and in solution, as determined by 1H and 19F NMR spectroscopy and mass spectrometry. 1H contains an oxidized coordinating ligand and was previously obtained by oxidation of 1 under more vigorous conditions. Experimental data suggest that oxidation of the ligand is favored in the presence of excess H2O2 and elevated temperatures. In contrast, a smaller amount (1Pt:2H2O2) of H2O2 at room temperature favors the oxidation of the metal and yields platinum(IV) complexes.
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Affiliation(s)
- Ruchika Ojha
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia; (R.O.); (A.M.B.); (G.B.D.)
| | - Peter C. Junk
- College of Science, Technology & Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Alan M. Bond
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia; (R.O.); (A.M.B.); (G.B.D.)
| | - Glen B. Deacon
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia; (R.O.); (A.M.B.); (G.B.D.)
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3
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Jayawardhana AMDS, Zheng YR. Interactions between mitochondria-damaging platinum(IV) prodrugs and cytochrome c. Dalton Trans 2022; 51:2012-2018. [PMID: 35029256 PMCID: PMC8838881 DOI: 10.1039/d1dt03875c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In this work, we present the first study about the interactions of mitochondria-damaging Pt(IV) prodrugs with cytochrome c. We synthesized a cisplatin-based Pt(IV) prodrug bearing a lipophilic hydrocarbon tail and anionic dansyl head group. The amphiphilic structure facilitates its accumulation in the mitochondria of cancer cells, which was validated using graphite furnace atomic absorption spectroscopy (GFAAS) and fluorescence imaging. Accordingly, this Pt(IV) prodrug is able to trigger mitochondrial damage and apoptosis. Overall, the Pt(IV) prodrug exhibits superior therapeutic effects against a panel of human cancer cells compared to cisplatin. It also overcomes drug resistance in ovarian cancer. Notably, HPLC analysis indicates that cytochrome c accelerates reduction (or activation) of the Pt(IV) prodrug in the presence of the electron donor nicotinamide adenine dinucleotide (NADH). More interestingly, additional studies indicate that cytochrome c was platinated by the reduced product of Pt(IV) prodrugs, and that empowers the proapoptotic peroxidase activity.
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Affiliation(s)
| | - Yao-Rong Zheng
- Department of Chemistry and Biochemistry, Kent State University, 236 Integrated Sciences Building, Kent, Ohio 44242, USA
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4
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Chen K, Cai L, Yang S, Peng S, Huang J, Xu J, Lu Z, Xu X, Fu B, Zhang L, Zhou X. Pt(IV) Prodrugs Designed to Embed in Nanotubes of a Polysaccharide for Drug Delivery. ACS APPLIED BIO MATERIALS 2021; 4:4841-4848. [PMID: 35007033 DOI: 10.1021/acsabm.1c00128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Cisplatin exhibits a sufficient killing effect on cancer cells; however, it damages normal cells simultaneously. Herein, we developed a prodrug delivery system based on branched β-(1→3)-d-glucan. This natural biomacromolecule-based polysaccharide nanotube was modified with cisplatin embedded in the hollow cavity (BFCP), showing high anticancer activity and low toxicity in vitro. It is a broad-prospect system, which is based on biocompatible nanomaterials loaded with Pt(IV) prodrugs for cancer cell absorption with subsequent release in tumors by utilizing the intracellular reducibility. BFCP chains adopted a nanotube conformation in water, observed by transmission electron microscopy. In comparison to cisplatin, the Pt(IV) prodrugs not only displayed better antitumor properties but also had significant tumor targeting. A potent natural complex conjugated with redox-responsive platinum prodrugs is a significantly efficient tumor drug demonstrated in vitro and in vivo.
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Affiliation(s)
- Kun Chen
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Liqin Cai
- College of Chemistry and Molecular Sciences, Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan 430072, China
| | - Shixi Yang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Shuang Peng
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Jinguo Huang
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Jinglei Xu
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Ziang Lu
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Xu
- College of Chemistry and Molecular Sciences, Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan 430072, China
| | - Boshi Fu
- College Department of Pharmacology, School of Pharmacy, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors, Ministry of Education, China Medical University, Shenyang, Liaoning Province 110122, China
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan 430072, China
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
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5
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Leal J, Santos L, Fernández-Aroca DM, Cuevas JV, Martínez MA, Massaguer A, Jalón FA, Ruiz-Hidalgo MJ, Sánchez-Prieto R, Rodríguez AM, Castañeda G, Durá G, Carrión MC, Barrabés S, Manzano BR. Effect of the aniline fragment in Pt(II) and Pt(IV) complexes as anti-proliferative agents. Standard reduction potential as a more reliable parameter for Pt(IV) compounds than peak reduction potential. J Inorg Biochem 2021; 218:111403. [PMID: 33730639 DOI: 10.1016/j.jinorgbio.2021.111403] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 02/07/2023]
Abstract
The problems of resistance and side effects associated with cisplatin and other chemotherapeutic drugs have boosted research aimed at finding new compounds with improved properties. The use of platinum(IV) prodrugs is one alternative, although there is some controversy regarding the predictive ability of the peak reduction potentials. In the work described here a series of fourteen chloride Pt(II) and Pt(IV) compounds was synthesised and fully characterised. The compounds contain different bidentate arylazole heterocyclic ligands. Their cytotoxic properties against human lung carcinoma (A549), human breast carcinoma (MCF7) and human colon carcinoma (HCT116 and HT29) cell lines were studied. A clear relationship between the type of ligand and the anti-proliferative properties was found, with the best results obtained for the Pt(II) compound that contains an aniline fragment, (13), thus evidencing a positive effect of the NH2 group. Stability and aquation studies in DMSO, DMF and DMSO/water mixtures were carried out on the active complexes and an in-depth analysis of the two aquation processes, including DFT analysis, of 13 was undertaken. It was verified that DNA was the target and that cell death occurred by apoptosis in the case of 13. Furthermore, the cytotoxic derivatives did not exhibit haemolytic activity. The reduction of the Pt(IV) compounds whose Pt(II) congeners were active was studied by several techniques. It was concluded that the peak reduction potential was not useful to predict the ability for reduction. However, a correlation between the cytotoxic activity and the standard reduction potential was found.
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Affiliation(s)
- Jorge Leal
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - Lucia Santos
- Universidad de Castilla-La Mancha, Departamento de Química Física, Facultad de Ciencias y Tecnologías Químicas, Avda. C. J. Cela s/n, 13071 Ciudad Real, Spain
| | - Diego M Fernández-Aroca
- Universidad de Castilla-La Mancha, Laboratorio de Oncología, Unidad de Medicina Molecular, Centro Regional de Investigaciones Biomédicas, Unidad Asociada de Biomedicina UCLM, Unidad asociada al CSIC, Albacete, Spain
| | - J Vicente Cuevas
- Universidad de Burgos, Department of Chemistry, Pza. Misael Bañuelos S/N, 09001 Burgos, Spain
| | - M Angeles Martínez
- Departament de Química, Universitat de Girona, Maria Aurèlia Capmany 69, 17003 Girona, Spain
| | - Anna Massaguer
- Departamento de Biologia, Universitat de Girona, Maria Aurèlia Capmany 40, 17003 Girona, Spain
| | - Felix A Jalón
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - M José Ruiz-Hidalgo
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Medicina de Albacete, Laboratorio de Oncología, Unidad de Medicina Molecular, Centro Regional de Investigaciones Biomédicas, Unidad Asociada de Biomedicina UCLM, Unidad asociada al CSIC, Albacete, Spain
| | - Ricardo Sánchez-Prieto
- Departamento de Biología del Cáncer, Instituto de Investigaciones Biomédicas De Madrid Alberto Sols (CSIC-UAM), Universidad de Castilla-La Mancha, Departamento de Ciencias Médicas, Facultad de Medicina de Albacete, Unidad Asociada de Biomedicina UCLM, Unidad asociada al CSIC, Albacete, Spain
| | - Ana M Rodríguez
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - Gregorio Castañeda
- Universidad de Castilla-La Mancha, Departamento de Química Analítica y Tecnología de los Alimentos, Facultad de Ciencias y Tecnologías Químicas, Avda. C. J. Cela s/n, 13071 Ciudad Real, Spain
| | - Gema Durá
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - M Carmen Carrión
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain
| | - Sílvia Barrabés
- Departamento de Biologia, Universitat de Girona, Maria Aurèlia Capmany 40, 17003 Girona, Spain
| | - Blanca R Manzano
- Universidad de Castilla-La Mancha, Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA, Avda. C. J. Cela, 10, 13071 Ciudad Real, Spain.
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6
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Ravera M, Gabano E, Zanellato I, Rangone B, Perin E, Ferrari B, Bottone MG, Osella D. Cis,cis,trans-[Pt IVCl 2(NH 3) 2(perillato) 2], a dual-action prodrug with excellent cytotoxic and antimetastatic activity. Dalton Trans 2021; 50:3161-3177. [PMID: 33595015 DOI: 10.1039/d0dt04051g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Two Pt(iv) conjugates containing one or two molecules of perillic acid (4-isopropenylcyclohexene-1-carboxylic acid), an active metabolite of limonene, were synthesized both with traditional and microwave-assisted methods and characterized. Their antiproliferative activity was tested on a panel of human tumor cell lines. In particular, cis,cis,trans-[PtIVCl2(NH3)2(perillato)2] exhibited excellent antiproliferative and antimetastatic activity on A-549 lung tumor cells at nanomolar concentrations. A number of in vitro biological tests were performed to decipher some aspects of its mechanism of action, including transwell migration and invasion as well as wound healing assay.
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Affiliation(s)
- Mauro Ravera
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Viale Michel 11, 15121 Alessandria, Italy.
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7
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Ojha R, Mason D, Forsyth CM, Deacon GB, Junk PC, Bond AM. Diverse and unexpected outcomes from oxidation of the platinum(II) anticancer agent [Pt{(p-BrC 6F 4)NCH 2CH 2NEt 2}Cl(py)] by hydrogen peroxide. J Inorg Biochem 2021; 218:111360. [PMID: 33711633 DOI: 10.1016/j.jinorgbio.2021.111360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 01/17/2021] [Accepted: 01/17/2021] [Indexed: 12/18/2022]
Abstract
Oxidation of the anti-tumour agent [Pt{(p-BrC6F4)NCH2CH2NEt2}Cl(py)], 1 (py = pyridine) with hydrogen peroxide under a variety of conditions yields a range of organoenamineamidoplatinum(II) compounds [Pt{(p-BrC6F4)NCH=C(X)NEt2}Cl(py)] (X = H, Cl, Br) as well as species with shared occupancy involving H, Cl and Br. Thus, oxidation of the -CH2-CH2- backbone (dehydrogenation) occurs, often accompanied by substitution. Oxidation of 1 with H2O2 in acetone yielded 1:1 co-crystallized [Pt{(p-BrC6F4)NCH=CHNEt2}Cl(py)], 1H and [Pt{(p-BrC6F4)NCH=C(Cl)NEt2}Cl(py)], 1Cl. The former was obtained pure in low yield from the oxidation of 1 with (NH4)2[Ce(NO3)6] in acetone, and the latter was obtained from 1 and H2O2 in CH2Cl2 at near reflux. From the latter reaction under vigorous refluxing [Pt{(p-BrC6F4)NCH=C(Br)NEt2}Cl(py)], 1Br was isolated. In refluxing acetonitrile, oxidation of 1 with H2O2 yielded [Pt{(p-BrC6F4)NCH=C(H0.25Br0.75)NEt2}Cl(py)], 1H0.25Br0.75, in which the alkene is mainly substituted by Br in a dual occupancy. Treatment of 1 with H2O2 and tetrabutylammonium hydroxide in acetone at room temperature formed [Pt{(p-HC6F4)NCH2CH2NEt2}Cl(py)], 2. Oxidation of [Pt{(p-HC6F4)NCH2CH2NEt2}Br(py)], 3 with H2O2 in boiling acetonitrile gave the ligand oxidation product [Pt{(p-HC6F4)NCH=C(Br)NEt2}Br(py)], 3Br. All major products were identified by X-ray crystallography as well as by 1H and 19F NMR spectra. In cases of mixed crystals or dual occupancy compounds, the 19F and 1H NMR spectra showed dissociation into the components in the solution in the same proportions as in isolated crystalline material.
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Affiliation(s)
- Ruchika Ojha
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia
| | - Dayna Mason
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia
| | - Craig M Forsyth
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia
| | - Glen B Deacon
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia.
| | - Peter C Junk
- College of Science & Engineering, James Cook University, Townsville, Qld 4811, Australia.
| | - Alan M Bond
- School of Chemistry, Monash University, Clayton 3800, VIC, Australia.
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8
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Datta P, Bang S, Yue Z, Beach T, Stilgenbauer M, Wang H, Bowers DJ, Kurokawa M, Xiao H, Zheng YR. Engineering liposomal nanoparticles of cholesterol-tethered amphiphilic Pt(iv) prodrugs with prolonged circulation time in blood. Dalton Trans 2020; 49:8107-8113. [PMID: 32490446 DOI: 10.1039/d0dt01297a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cisplatin is a platinum-based chemotherapeutic agent widely used in the treatment of various solid tumors. However, a major challenge in the use of cisplatin and in the development of cisplatin derivatives, namely Pt(iv) prodrugs, is their premature reduction in the bloodstream before reaching cancer cells. To circumvent this problem, we designed liposomal nanoparticles coupled with a cholesterol-tethered amphiphilic Pt(iv) prodrug. The addition of cholesterol served to stabilize the formation of the liposome, while selectively incorporating cholesterol as the axial ligand also allowed the Pt(iv) prodrug to readily migrate into the liposomal bilayer. Notably, upon embedding into the nanoparticles, the Pt(iv) prodrug showed marked resistance against premature reduction in human plasma in vitro. Pharmacokinetic analysis in a mouse model also showed that the nanoparticles significantly extend the half-life of the Pt(iv) prodrug to 180 min, which represents a >6-fold increase compared to cisplatin. Importantly, such lipid modification did not compromise the genotoxicity of cisplatin, as the Pt(iv) prodrug induced DNA damage and apoptosis in ovarian cancer cell lines efficiently. Taken together, our strategy provides a novel insight as to how to stabilize a platinum-based compound to increase the circulation time in vivo, which is expected to enhance the efficacy of drug treatment.
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Affiliation(s)
- Payel Datta
- Department of Chemistry and Biochemistry, Kent State University, 236 Integrated Sciences Building, Kent, Ohio 44242, USA
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9
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Arduino I, Depalo N, Re F, Dal Magro R, Panniello A, Margiotta N, Fanizza E, Lopalco A, Laquintana V, Cutrignelli A, Lopedota AA, Franco M, Denora N. PEGylated solid lipid nanoparticles for brain delivery of lipophilic kiteplatin Pt(IV) prodrugs: An in vitro study. Int J Pharm 2020; 583:119351. [PMID: 32339634 DOI: 10.1016/j.ijpharm.2020.119351] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 10/24/2022]
Abstract
Here, polyethylene glycol (PEG)-stabilized solid lipid nanoparticles (SLNs) containing Pt(IV) prodrugs derived from kiteplatin were designed and proposed as novel nanoformulations potentially useful for the treatment of glioblastoma multiforme. Four different Pt(IV) prodrugs were synthesized, starting from kiteplatin by the addition of two carboxylate ligands with different length of the alkyl chains and lipophilicity degree, and embedded in the core of PEG-stabilized SLNs composed of cetyl palmitate. The SLNs were extensively characterized by complementary optical and morphological techniques. The results proved the formation of SLNs characterized by average size under 100 nm and dependence of drug encapsulation efficiency on the lipophilicity degree of the tested Pt(IV) prodrugs. A monolayer of immortalized human cerebral microvascular endothelial cells (hCMEC/D3) was used as in vitro model of blood-brain barrier (BBB) to evaluate the ability of the SLNs to penetrate the BBB. For this purpose, optical traceable SLNs were achieved by co-incorporation of Pt(IV) prodrugs and luminescent carbon dots (C-Dots) in the SLNs. Finally, an in vitro study was performed by using a human glioblastoma cell line (U87), to investigate on the antitumor efficiency of the SLNs and on their improved ability to be cell internalized respect to the free Pt(IV) prodrugs.
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Affiliation(s)
- Ilaria Arduino
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari "Aldo Moro", Orabona St. 4, 70125, Bari, Italy
| | - Nicoletta Depalo
- CNR-Institute for Physical and Chemical Processes SS, Bari, Italy
| | - Francesca Re
- School of Medicine and Surgery, Nanomedicine Center NANOMIB, University of Milano-Bicocca, Vedano al Lambro, MB, Italy
| | - Roberta Dal Magro
- School of Medicine and Surgery, Nanomedicine Center NANOMIB, University of Milano-Bicocca, Vedano al Lambro, MB, Italy
| | | | - Nicola Margiotta
- Department of Chemistry, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy
| | - Elisabetta Fanizza
- CNR-Institute for Physical and Chemical Processes SS, Bari, Italy; Department of Chemistry, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy
| | - Antonio Lopalco
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari "Aldo Moro", Orabona St. 4, 70125, Bari, Italy
| | - Valentino Laquintana
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari "Aldo Moro", Orabona St. 4, 70125, Bari, Italy
| | - Annalisa Cutrignelli
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari "Aldo Moro", Orabona St. 4, 70125, Bari, Italy
| | - Angela Assunta Lopedota
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari "Aldo Moro", Orabona St. 4, 70125, Bari, Italy
| | - Massimo Franco
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari "Aldo Moro", Orabona St. 4, 70125, Bari, Italy
| | - Nunzio Denora
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari "Aldo Moro", Orabona St. 4, 70125, Bari, Italy; CNR-Institute for Physical and Chemical Processes SS, Bari, Italy.
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10
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Prodrugs in combination with nanocarriers as a strategy for promoting antitumoral efficiency. Future Med Chem 2019; 11:2131-2150. [DOI: 10.4155/fmc-2018-0388] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Prodrug entrapment into nanocarriers for tumor delivery is a strategy to achieve a valid therapy with high efficiency. The prodrug contains anticancer agents conjugating with functional moieties or ligands so that the active component is released after metabolism in the body or tumor. The advantages of nanosystems for loading prodrugs include high loading, increased prodrug stability, improved bioavailability and enhanced targeting to tumor cells. In the present article, we introduce the prodrug delivery approaches according to nanomedicine and the recent advances in prodrug-loaded nanocarriers. First, we discuss the conceptional design of combined prodrugs and nanocarriers in response to the obstruction in anticancer therapy. Then we describe the cases of prodrug-loaded nanoparticles for cancer treatment during the past 5 years.
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11
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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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Weninger A, Baecker D, Obermoser V, Egger D, Wurst K, Gust R. Synthesis and Biological Evaluation of Zeise's Salt Derivatives with Acetylsalicylic Acid Substructure. Int J Mol Sci 2018; 19:E1612. [PMID: 29848978 PMCID: PMC6032411 DOI: 10.3390/ijms19061612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/18/2018] [Accepted: 05/21/2018] [Indexed: 11/17/2022] Open
Abstract
The development of novel biologically active organometallic compounds bearing an acetylsalicylic acid (ASA) substructure led to the synthesis of analogical Zeise-type salts that accordingly inhibit cyclooxygenase (COX) enzymes. In order to determine the influence of the length of the alkyl chain between the platinum(II) center and the ASA moiety, compounds with varying methylene groups (n = 1⁻4) were synthesized and characterized. For the propene derivative structural elucidation by X-ray crystallography was possible. Prior to evaluation of biological activity, the complexes were investigated regarding their stability in different media, such as water, physiological sodium chloride, and phosphate buffered saline. Therefore, an analytical method based on capillary electrophoresis was established. All of the compounds were tested for their COX inhibitory potential. In general, complexes with longer alkyl chains caused higher inhibition of COX enzymes and the inhibitory potential towards COX enzymes was enhanced when compared to Zeise's salt. The growth inhibitory effects of the synthesized substances were investigated in vitro against colon carcinoma (HT-29) and breast cancer (MCF-7) cells. The IC50 values of the new derivatives ranged from 30 to 50 µM, whereas neither Zeise's salt itself nor ASA showed any antiproliferative activity at the used concentrations.
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Affiliation(s)
- Alexander Weninger
- 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.
| | - Daniel Baecker
- 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.
| | - Victoria Obermoser
- 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.
| | - Dorothea Egger
- 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.
| | - Klaus Wurst
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, CCB-Centrum for Chemistry and Biomedicine, Innrain 80-82, 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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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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Ma J, Wang Q, Huang Z, Yang X, Nie Q, Hao W, Wang PG, Wang X. Glycosylated Platinum(IV) Complexes as Substrates for Glucose Transporters (GLUTs) and Organic Cation Transporters (OCTs) Exhibited Cancer Targeting and Human Serum Albumin Binding Properties for Drug Delivery. J Med Chem 2017; 60:5736-5748. [PMID: 28603992 DOI: 10.1021/acs.jmedchem.7b00433] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Glycosylated platinum(IV) complexes were synthesized as substrates for GLUTs and OCTs for the first time, and the cytotoxicity and detailed mechanism were determined in vitro and in vivo. Galactoside Pt(IV), glucoside Pt(IV), and mannoside Pt(IV) were highly cytotoxic and showed specific cancer-targeting properties in vitro and in vivo. Glycosylated platinum(IV) complexes 5, 6, 7, and 8 (IC50 0.24-3.97 μM) had better antitumor activity of nearly 166-fold higher than the positive controls cisplatin (1a), oxaliplatin (3a), and satraplatin (5a). The presence of a hexadecanoic chain allowed binding with human serum albumin (HSA) for drug delivery, which not only enhanced the stability of the inert platinum(IV) prodrugs but also decreased their reduction by reductants present in human whole blood. Their preferential accumulation in cancer cells compared to noncancerous cells (293T and 3T3 cells) suggested that they were potentially safe for clinical therapeutic use.
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Affiliation(s)
- Jing Ma
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China.,Pharmaceutical College, Henan University , Kaifeng 475004, Henan P. R. China
| | - Qingpeng Wang
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China.,Institute of Biopharmaceutical Research, Liaocheng University , Liaocheng 252059, P. R. China
| | - Zhonglv Huang
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China
| | - Xiande Yang
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China
| | - Quandeng Nie
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China
| | - Wenpei Hao
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China
| | - Peng George Wang
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China.,Institute of Biopharmaceutical Research, Liaocheng University , Liaocheng 252059, P. R. China
| | - Xin Wang
- College of Pharmacy, Tianjin Key Laboratory of Molecular Drug Research, State Key Laboratory of Elemento-organic Chemistry, Nankai University , Tianjin 300071 P. R. China.,Institute of Biopharmaceutical Research, Liaocheng University , Liaocheng 252059, P. R. China
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15
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Tsipis AC, Karapetsas IN. Prediction of 195 Pt NMR of photoactivable diazido- and azine-Pt(IV) anticancer agents by DFT computational protocols. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2017; 55:145-153. [PMID: 27628024 DOI: 10.1002/mrc.4523] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/03/2016] [Accepted: 09/05/2016] [Indexed: 06/06/2023]
Abstract
195 Pt NMR chemical shifts for a series of large-sized photoactivable anticancer diazido-Pt(IV), homopiperizine-Pt(IV) and multifunctional azine-Pt(IV) complexes hardly to be probed experimentally and by sophisticated four-component and two-component relativistic calculations are predicted with high accuracy by density functional theory computational protocols. The calculated 195 Pt NMR chemical shifts constitute a crucial descriptor for making highly predictive one-parameter quantitative structure activity relationships models that help in designing photoactivable Pt(IV)-based antitumor agents with high cytotoxicity and selectivity. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Athanassios C Tsipis
- Laboratory of Inorganic and General Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Ioannis N Karapetsas
- Laboratory of Inorganic and General Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
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16
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Lorenzo J, Montaña ÁM. The molecular shape and the field similarities as criteria to interpret SAR studies for fragment-based design of platinum(IV) anticancer agents. Correlation of physicochemical properties with cytotoxicity. J Mol Graph Model 2016; 69:39-60. [PMID: 27567201 DOI: 10.1016/j.jmgm.2016.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/06/2016] [Accepted: 07/28/2016] [Indexed: 10/21/2022]
Abstract
Molecular shape similarity and field similarity have been used to interpret, in a qualitative way, the structure-activity relationships in a selected series of platinum(IV) complexes with anticancer activity. MM and QM calculations have been used to estimate the electron density, electrostatic potential maps, partial charges, dipolar moments and other parameters to correlate the stereo-electronic properties with the differential biological activity of complexes. Extended Electron Distribution (XED) field similarity has been also evaluated for the free 1,4-diamino carrier ligands, in a fragment-based drug design approach, comparing Connolly solvent excluded surface, hydrophobicity field surface, Van der Waals field surface, nucleophilicity field surface, electrophilicity field surface and the extended electron-distribution maxima field points. A consistency has been found when comparing the stereo-electronic properties of the studied series of platinum(IV) complexes and/or the free ligands evaluated and their in vitro anticancer activity.
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Affiliation(s)
- Julia Lorenzo
- Instituto de Biotecnología y Biomedicina Vicent Villar Palasí, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Ángel M Montaña
- Unidad de Química Orgánica Industrial y Aplicada, Departamento de Química Orgánica, Universidad de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
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17
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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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18
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Platinum(IV) cisplatin derivative trans, cis, cis-bis(heptanoato)amine(cyclohexylamine)dichloridoplatinum(IV) has an enhanced therapeutic index compared to cisplatin for the treatment of non-small cell lung cancer. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Lorenzo J, Delgado A, Montaña ÁM, Mesas JM, Alegre MT, Rodríguez MDC, Avilés FX. Synthesis, biological evaluation and SAR studies of novel bicyclic antitumor platinum(IV) complexes. Eur J Med Chem 2014; 83:374-88. [PMID: 24980119 DOI: 10.1016/j.ejmech.2014.06.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 06/06/2014] [Accepted: 06/20/2014] [Indexed: 10/25/2022]
Abstract
The present study describes the synthesis, anticancer activity and SAR studies of novel platinum(IV) complexes having 1,2-bis(aminomethyl)carbobicyclic or oxabicyclic carrier ligands, bearing chlorido and/or hydroxido ligands in axial position and chlorido or malonato ligands in equatorial position (labile ligands). These complexes were synthetized with the aim of obtaining new anticancer principles more soluble in water and therefore more bioavailable. Several substitution patterns on the platinum atom have been designed in order to evaluate their antiproliferative activity and to establish structure-activity relationship rules. The synthesis of platinum(IV) complexes with axial hydroxyl ligands on the platinum(IV) were carried out by reaction of K2Pt(OH)2Cl4 with the corresponding diamines. The complexes with axial chlorido ligands on the platinum(IV) atom were synthesized by direct reaction of diamines with K2PtCl6. Carboxylated complexes were synthesized by the substitution reaction of equatorial chlorido ligands by silver dicarboxylates. The most actives complexes were those having malonate as a labile ligand, no matter of the structure of the carrier ligand. Regarding the influence of the structure of the non-labile 1,4-diamine carrier ligand on the cytotoxicity, it was found that the complexes having the more lipophilic and symmetrical bicyclo[2.2.2]octane framework were much more active than those having an oxygen or methylene bridge.
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Affiliation(s)
- Julia Lorenzo
- Instituto de Biotecnología y Biomedicina Vicent Villar Palasí, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Aida Delgado
- Unidad de Química Orgánica Industrial y Aplicada, Departamento de Química Orgánica, Universidad de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ángel M Montaña
- Unidad de Química Orgánica Industrial y Aplicada, Departamento de Química Orgánica, Universidad de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Juan M Mesas
- Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus de Lugo, 27002 Lugo, Spain
| | - María-Teresa Alegre
- Escuela Politécnica Superior, Universidad de Santiago de Compostela, Campus de Lugo, 27002 Lugo, Spain
| | | | - Francesc-Xavier Avilés
- Instituto de Biotecnología y Biomedicina Vicent Villar Palasí, Universidad Autónoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
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20
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Zheng YR, Suntharalingam K, Johnstone TC, Yoo H, Lin W, Brooks JG, Lippard SJ. Pt(IV) prodrugs designed to bind non-covalently to human serum albumin for drug delivery. J Am Chem Soc 2014; 136:8790-8. [PMID: 24902769 PMCID: PMC4076294 DOI: 10.1021/ja5038269] [Citation(s) in RCA: 325] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Indexed: 11/29/2022]
Abstract
Albumin is the most abundant protein in human serum and drugs that are administered intravenously inevitably interact with it. We present here a series of platinum(IV) prodrugs designed specifically to enhance interaction with human serum albumin (HSA) for drug delivery. This goal is achieved by asymmetrically functionalizing the axial ligands of the prodrug so as to mimic the overall features of a fatty acid. Systematic variation of the length of the aliphatic tail tunes the cellular uptake and, consequently, the cytotoxicity of cis,cis,trans-[Pt(NH3)2Cl2(O2CCH2CH2COOH)(OCONHR)], 4, where R is a linear alkyl group. Investigation of an analogue bearing a fluorophore conjugated to the succinate ligand confirmed that these compounds are reduced by biological reductants with loss of the axial ligands. Intracellular release of cisplatin from 4 was further confirmed by observing the characteristic effects of cisplatin on the cell cycle and morphology following treatment with the prodrug. The most potent member of series 4, for which R is a hexadecyl chain, interacts with HSA in a 1:1 stoichiometry to form the platinum-protein complex 7. The interaction is non-covalent and extraction with octanol completely removes the prodrug from an aqueous solution of HSA. Construct 7 is robust and can be isolated following fast protein liquid chromatography. The nature of the tight interaction was investigated computationally, and these studies suggest that the prodrug is buried below the surface of the protein. Consequently, complexation to HSA is able to reduce the rate of reduction of the prodrug by ascorbate. The lead compound from series 4 also exhibited significant stability in whole human blood, attributed to its interaction with HSA. This favorable redox profile, in conjunction with the established nonimmunogenicity, biocompatibility, and enhanced tumor accumulation of HSA, produces a system that holds significant therapeutic potential.
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Affiliation(s)
- Yao-Rong Zheng
- Department of Chemistry, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | | | - Timothy C. Johnstone
- Department of Chemistry, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hyunsuk Yoo
- Department of Chemistry, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Wei Lin
- Department of Chemistry, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jamar G. Brooks
- Department of Chemistry, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Stephen J. Lippard
- Department of Chemistry, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
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Gandin V, Marzano C, Pelosi G, Ravera M, Gabano E, Osella D. trans,cis,cis-bis(benzoato)dichlorido(cyclohexane-1R,2R-diamine)platinum(IV): a prodrug candidate for the treatment of oxaliplatin-refractory colorectal cancer. ChemMedChem 2014; 9:1299-305. [PMID: 24715720 DOI: 10.1002/cmdc.201400061] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Indexed: 11/06/2022]
Abstract
The gold standard for the treatment of metastatic colorectal cancer consists of combination chemotherapy. Over time, however, the development of chemoresistant tumor clones leads to relapse. It may be possible to overcome oxaliplatin chemoresistance in colorectal cancer cells by exploiting a complex obtained from the insertion of the cyclohexane-1R,2R-diamine carrier ligand (the same diamine present in oxaliplatin) into an octahedral Pt(IV) scaffold with high lipophilicity conferred by two benzoate axial ligands. Herein we report the synthesis, characterization (including X-ray structure), biological activity, and cellular accumulation of trans,cis,cis-bis(benzoato)dichlorido(cyclohexane-1R,2R-diamine)platinum(IV) complex in a panel of several human cancer cell lines, including a colon carcinoma cell line resistant to oxaliplatin. The compound under investigation shows the best performance in terms of in vitro anti-proliferative activity and ability to overcome chemoresistance, with respect to oxaliplatin and some other Pt(II) reference complexes. This result is likely related to the high lipophilicity shown by the title compound that favors its cellular accumulation by passive diffusion.
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Affiliation(s)
- Valentina Gandin
- Dipartimento di Scienze del Farmaco, Università di Padova, Via Marzolo 5, 35131 Padova (Italy)
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22
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Tsipis AC, Karapetsas IN. Accurate prediction of 195Pt NMR chemical shifts for a series of Pt(ii) and Pt(iv) antitumor agents by a non-relativistic DFT computational protocol. Dalton Trans 2014; 43:5409-26. [DOI: 10.1039/c3dt53594k] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Exhaustive benchmark DFT calculations reveal that the non-relativistic GIAO-PBE0/SARC-ZORA(Pt)∪6-31+G(d)(E) computational protocol predicts accurate 195Pt NMR chemical shifts for a wide range of square planar Pt(ii) and octahedral Pt(iv) anticancer agents.
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Affiliation(s)
- Athanassios C. Tsipis
- Laboratory of Inorganic and General Chemistry
- Department of Chemistry
- University of Ioannina
- , Greece
| | - Ioannis N. Karapetsas
- Laboratory of Inorganic and General Chemistry
- Department of Chemistry
- University of Ioannina
- , Greece
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23
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Wilson JJ, Lippard SJ. Synthetic methods for the preparation of platinum anticancer complexes. Chem Rev 2013; 114:4470-95. [PMID: 24283498 DOI: 10.1021/cr4004314] [Citation(s) in RCA: 494] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Justin J Wilson
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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24
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Johnstone TC, Lippard SJ. The effect of ligand lipophilicity on the nanoparticle encapsulation of Pt(IV) prodrugs. Inorg Chem 2013; 52:9915-20. [PMID: 23859129 DOI: 10.1021/ic4010642] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In an effort to expand the therapeutic range of platinum anticancer agents, several new approaches to platinum-based therapy, including nanodelivery, are under active investigation. To better understand the effect of ligand lipophilicity on the encapsulation of Pt(IV) prodrugs within polymer nanoparticles, the series of compounds cis,cis,trans-[Pt(NH3)2Cl2L2] was prepared, where L = acetate, propanoate, butanoate, pentanoate, hexanoate, heptanoate, octanoate, nonanoate, and decanoate. The lipophilicities of these compounds, assessed by reversed-phase HPLC, correlate with the octanol/water partition coefficients of their respective free carboxylic acid ligands, which in turn affect the degree of encapsulation of the Pt(IV) complex within the hydrophobic core of poly(lactic-co-glycolic acid)-block-poly(ethylene glycol) (PLGA-PEG-COOH) nanoparticles. The most lipophilic compound investigated, cis,cis,trans-[Pt(NH3)2Cl2(O2C(CH2)8CH3)2], displayed the best encapsulation. This compound was therefore selected to evaluate the effect of increased platinum concentration on encapsulation. As the platinum concentration was increased, there was an initial increase in encapsulation followed by a decrease due to macroscopic precipitation. Maximal loading occurred when the platinum complex was present at a 40% w/w ratio with respect to polymer during the nanoprecipitation step. Particles formed under these optimal conditions had diameters of approximately 50 nm, as determined by transmission electron microscopy.
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Affiliation(s)
- Timothy C Johnstone
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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25
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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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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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Rakić GM, Grgurić-Šipka S, Kaluđerović GN, Bette M, Filipović L, Aranđelović S, Radulović S, Tešić ŽL. The synthesis, spectroscopic, X-ray characterization and in vitro cytotoxic testing results of activity of five new trans-platinum(IV) complexes with functionalized pyridines. Eur J Med Chem 2012; 55:214-9. [DOI: 10.1016/j.ejmech.2012.07.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 07/05/2012] [Accepted: 07/15/2012] [Indexed: 11/24/2022]
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28
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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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29
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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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Łakomska I, Fandzloch M, Wojtczak A, Szłyk E. Platinum(IV) coordination compounds containing 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one as nonleaving ligand. Molecular and cytotoxicity in vitro characterization. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:497-501. [PMID: 21536486 DOI: 10.1016/j.saa.2011.03.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 02/20/2011] [Accepted: 03/09/2011] [Indexed: 05/30/2023]
Abstract
Novel platinum(IV) coordination compounds with 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one (HmtpO): cis-trans-[PtCl(2)(OH)(2)(NH(3))(HmtpO)] (1), cis-trans-[PtCl(5)(HmtpO)][(CH(3))(2)NH(2)] (2) have been prepared and structurally characterized by spectroscopic methods ((1)H, IR and X-ray crystallography (2)). The X-ray results indicate that the local geometry around the platinum(IV) centre approximates a typical octahedral arrangement with nitrogen atom N3 of the HmtpO and three chloride atoms in equatorial positions. The remaining two axial positions are occupied by two chlorides. The preliminary assessment of antitumor properties of (1) was performed as an in vitro antiproliferative activity against HL-60 human acute promyelocytic leukemia and HCV29T bladder cancer. The cis-trans-[PtCl(2)(OH)(2)(NH(3))(HmtpO)] (1) exhibits higher cytotoxic activity against HL-60 (IC(50)=6.4 μM) than cisplatin.
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Affiliation(s)
- Iwona Łakomska
- Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Toruń, Poland.
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31
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Molecular and statistical modeling of reduction peak potential and lipophilicity of platinum(IV) complexes. J Biol Inorg Chem 2010; 16:361-72. [PMID: 21080205 DOI: 10.1007/s00775-010-0731-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Accepted: 10/31/2010] [Indexed: 11/27/2022]
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32
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Gramatica P, Papa E, Luini M, Monti E, Gariboldi MB, Ravera M, Gabano E, Gaviglio L, Osella D. Antiproliferative Pt(IV) complexes: synthesis, biological activity, and quantitative structure-activity relationship modeling. J Biol Inorg Chem 2010; 15:1157-69. [PMID: 20526854 DOI: 10.1007/s00775-010-0676-4] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Accepted: 05/21/2010] [Indexed: 01/13/2023]
Abstract
Several Pt(IV) complexes of the general formula [Pt(L)2(L')2(L'')2] [axial ligands L are Cl-, RCOO-, or OH-; equatorial ligands L' are two am(m)ine or one diamine; and equatorial ligands L'' are Cl- or glycolato] were rationally designed and synthesized in the attempt to develop a predictive quantitative structure-activity relationship (QSAR) model. Numerous theoretical molecular descriptors were used alongside physicochemical data (i.e., reduction peak potential, Ep, and partition coefficient, log Po/w) to obtain a validated QSAR between in vitro cytotoxicity (half maximal inhibitory concentrations, IC50, on A2780 ovarian and HCT116 colon carcinoma cell lines) and some features of Pt(IV) complexes. In the resulting best models, a lipophilic descriptor (log Po/w or the number of secondary sp3 carbon atoms) plus an electronic descriptor (Ep, the number of oxygen atoms, or the topological polar surface area expressed as the N,O polar contribution) is necessary for modeling, supporting the general finding that the biological behavior of Pt(IV) complexes can be rationalized on the basis of their cellular uptake, the Pt(IV)-->Pt(II) reduction, and the structure of the corresponding Pt(II) metabolites. Novel compounds were synthesized on the basis of their predicted cytotoxicity in the preliminary QSAR model, and were experimentally tested. A final QSAR model, based solely on theoretical molecular descriptors to ensure its general applicability, is proposed.
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Affiliation(s)
- Paola Gramatica
- QSAR Research Unit in Environmental Chemistry and Ecotoxicology, Department of Structural and Functional Biology, Università dell'Insubria, Via Dunant 3, 21100, Varese, Italy
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33
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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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34
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Synthesis, characterization and crystal structure determination of platinum(IV) complexes containing, bipyridine derivatives and chloride, [Pt(5,5′-dmbipy)Cl4] and [Pt(6-mbipy)Cl4]. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.06.053] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Kelly ME, Gómez-Ruiz S, Schmidt J, Wagner C, Schmidt H. Platinum(IV) complexes with α,ω-bis(pyrazol-1-yl) alkanediyl and diethyl ether/thioether ligands. Crystal structures of dibromodimethyl[1,2-bis(pyrazol-1-yl)ethane]platinum(IV) and trimethyl-bis[2-(pyrazol-1-yl)ethyl]etherplatinum(IV) tetrafluoroborate. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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36
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Łakomska I, Wojtczak A, Sitkowski J, Kozerski L, Szłyk E. Platinum(IV) complexes with purine analogs. Studies of molecular structure and antiproliferative activity in vitro. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.05.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Ranaldo R, Margiotta N, Intini FP, Pacifico C, Natile G. Conformer distribution in (cis-1,4-DACH)bis(guanosine-5'-phosphate)platinum(II) adducts: a reliable model for DNA adducts of antitumoral cisplatin. Inorg Chem 2008; 47:2820-30. [PMID: 18284193 DOI: 10.1021/ic702202x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In [PtCl2(cis-1,4-DACH)] (DACH = diaminocyclohexane), the N-Pt-N bite angle (> or =97 degrees , as determined by X-ray diffraction analysis) is much larger than those found in other Pt complexes with bidentate diamines or in cisplatin (approximately 91 degrees ). Hence, the possibility exists that in (cis-1,4-DACH)PtG 2 adducts, rotation of the G's around the Pt-N7 bonds is slowed enough to allow observation of different conformers. In accord with this prevision, decreasing the temperature to 238 K enabled us to observe different conformers of (cis-1,4-DACH)Pt(5'-GMP) 2 (GMP = guanosine monophosphate). This observation is the first case in which such conformers for a platinum derivative with primary diamines and untethered guanines have been resolved and represents the closest model to clinically effective cisplatin obtained to date. We also found that the presence of the 1,4-DACH ligand increased the intensity of the circular dichroism signal stemming from the dominance of an HT conformer (DeltaHT in the adduct with 3'-GMPs and LambdaHT in the adduct with 5'-GMPs).
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Affiliation(s)
- Rosa Ranaldo
- Dipartimento Farmaco-Chimico, Università degli Studi di Bari, Via E. Orabona 4, 70125 Bari, Italy
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38
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Shamsuddin S, Ali MS, Whitmire KH, Khokhar AR. Synthesis characterization and X-ray crystal structures of cis-1,4-diaminocyclohexane-platinum(II) nucleobase adducts. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.08.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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Pasetto LM, D'Andrea MR, Brandes AA, Rossi E, Monfardini S. The development of platinum compounds and their possible combination. Crit Rev Oncol Hematol 2006; 60:59-75. [PMID: 16806960 DOI: 10.1016/j.critrevonc.2006.02.003] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2005] [Revised: 01/31/2006] [Accepted: 02/01/2006] [Indexed: 11/22/2022] Open
Abstract
Cisplatin plays a central role in cancer chemotherapy in spite of its toxicity. To circumvent this toxicity and to enhance its therapeutic index a lot of preclinical and clinical studies have been conducted and several thousand analogues have been synthesized. Much more analysis remains to be done, but nowadays, the absence of any definitive, biologically interpretable molecular predictor of activity is consistent with the idea that platinum compounds have multiple intracellular targets and that cells can have multiple mechanisms of resistance. This review analyses a part of these platinum compounds analyzed to date, their mechanism of action, resistance and the future trends in this sector.
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Affiliation(s)
- Lara Maria Pasetto
- Medical Oncology Division, Azienda Ospedale-Università, Via Gattamelata 64, 35128 Padova, Italy.
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40
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Cui K, Wang L, Zhu H, Gou S, Liu Y. Novel cisplatin-type platinum complexes and their cytotoxic activity. Bioorg Med Chem Lett 2006; 16:2937-42. [PMID: 16554155 DOI: 10.1016/j.bmcl.2006.02.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2005] [Revised: 02/16/2006] [Accepted: 02/28/2006] [Indexed: 11/25/2022]
Abstract
A series of novel cisplatin-type platinum complexes, formulated as [PtA2(OCOCH2OR)2] (A2 = two monoamines or one diamine, R is an alkyl group), were designed, characteristic of alkoxyacetate as carboxylato ligands. The pertinent compounds were prepared and characterized by elementary analyses, IR, 1H NMR, and ESI-MS spectra. The cytotoxic activities of compound 1a in vitro toward HL-60 human leukemia and BEL-7402 human hepatocellular carcinoma cell lines were pioneeringly studied. Then, compounds 1b-3d were evaluated for their in vitro cytotoxicity against Ramos human lymphoma, 3AO human ovarian carcinoma, and A549 human non-small cell lung cancer cell lines. Most of them showed better cytotoxic activity than carboplatin against above selected cell lines.
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Affiliation(s)
- Kai Cui
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
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41
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Braga D, Curzi M, Johansson A, Polito M, Rubini K, Grepioni F. Simple and Quantitative Mechanochemical Preparation of a Porous Crystalline Material Based on a 1D Coordination Network for Uptake of Small Molecules. Angew Chem Int Ed Engl 2006; 45:142-6. [PMID: 16299824 DOI: 10.1002/anie.200502597] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dario Braga
- Department of Chemistry, G. Ciamician, Via F. Selmi 2, 40126 Bologna, Italy.
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42
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Braga D, Curzi M, Johansson A, Polito M, Rubini K, Grepioni F. Simple and Quantitative Mechanochemical Preparation of a Porous Crystalline Material Based on a 1D Coordination Network for Uptake of Small Molecules. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200502597] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Wang L, Gou S, Chen Y, Liu Y. Potential new antitumor agents from an innovative combination of camphorato, a ramification of traditional Chinese medicine, with a platinum moiety. Bioorg Med Chem Lett 2005; 15:3417-22. [PMID: 15953727 DOI: 10.1016/j.bmcl.2005.05.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2005] [Revised: 04/26/2005] [Accepted: 05/06/2005] [Indexed: 10/25/2022]
Abstract
Eight new camphorato platinum complexes have been synthesized and evaluated for their in vitro cytotoxicity against HL-60 human leukemia, 3AO human ovarian carcinoma, BEL-7402 human hepatocarcinoma, and A549 human lung carcinoma cell lines. Most complexes showed good cytotoxic activity against the above-selected cell lines. Among the complexes, two compounds were assayed for their in vivo antitumor activity against LS-174T human colon carcinoma cells implanted in mice. One complex exhibited not only higher in vivo antitumor activity, but also less toxicity than oxaliplatin when it was administered intravenously at a dose of 6 mg/kg three times.
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Affiliation(s)
- Lianhong Wang
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
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44
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Kim HJ, Kim KM, Song R, Sohn YS. Synthesis and the structure of mixed carboxylatoplatinum(IV) complexes involving one trifluoroacetate ligand. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.07.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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Ali MS, Khokhar AR. cis-1,4-Diaminocyclohexane–Pt(II) and –(IV) adducts with DNA bases and nucleosides. J Inorg Biochem 2003; 96:452-6. [PMID: 13678810 DOI: 10.1016/s0162-0134(03)00262-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A series of new platinum(II) and platinum(IV) adducts of type [P(II)(cis-1,4-DACH)LCl]NO(3,) where cis-1,4-DACH=cis-1,4-diaminocyclohexane, and L=9-ethylguanine, 1-methylcytosine, adenine, adenosine, cytosine, cytidine, guanine, and [Pt(IV)(cis-1,4-DACH)Ltrans-(X)(2)Cl]NO(3), (where Y=hydroxo or acetato), were synthesized and characterized by elemental analysis, infrared spectroscopy, and 1H and 195Pt nuclear magnetic resonance spectroscopy.
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Affiliation(s)
- Mohammad S Ali
- Department of Experimental Therapeutics, Box 353, The University of Texas, M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
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46
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Platinum(IV) tetraphenylporphyrin dibromide complexes: synthesis, characterization, and electrochemistry. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00349-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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47
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Synthesis and characterization of platinum(II) complexes with 3-methylpiperidine: crystal and molecular structure of [Pt(3-methylpiperidine)2(malonato)]·H2O. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00351-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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48
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Gielen M, Biesemans M, de Vos D, Willem R. Synthesis, characterization and in vitro antitumor activity of di- and triorganotin derivatives of polyoxa- and biologically relevant carboxylic acids. J Inorg Biochem 2000; 79:139-45. [PMID: 10830858 DOI: 10.1016/s0162-0134(99)00161-0] [Citation(s) in RCA: 143] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
An overview of the development of anti-tumor organotin derivatives, sometimes as active in vitro as doxorubicin, is presented and discussed. Solubility in water is an important issue, dominating the in vivo testing of compounds with promising in vitro properties. Several water-soluble organotin compounds gave the best in vitro activities. Novel, useful organotin anti-tumor compounds should be designed toward improved water solubility.
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Affiliation(s)
- M Gielen
- Vrije Universiteit Brussel, Brussels, Belgium.
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49
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Synthesis and characterization of piperidine platinum(II) complexes with dicarboxylates: crystal and molecular structure of cis-[Pt(piperidine)2Cl2]·H2O. Polyhedron 2000. [DOI: 10.1016/s0277-5387(00)00348-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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50
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Ali Khan SR, Huang S, Shamsuddin S, Inutsuka S, Whitmire KH, Siddik ZH, Khokhar AR. Synthesis, characterization and cytotoxicity of new platinum(IV) axial carboxylate complexes: crystal structure of potential antitumor agent [PtIV(trans-1R,2R-diaminocyclohexane)trans(acetate)2Cl2]. Bioorg Med Chem 2000; 8:515-21. [PMID: 10732967 DOI: 10.1016/s0968-0896(99)00313-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A series of new platinum(IV) complexes of the type [PtIV(DACH)trans(L)2Cl2] (where DACH = trans-1R,2R-diaminocyclohexane, and L = acetate, propionate, butyrate, valerate, hexanoate, or heptanoate) bearing the carboxylate groups in the axial positions have been synthesized and characterized by elemental analysis, IR, and 195Pt NMR spectroscopy. The crystal structure of the analogue [PtIV(DACH)trans(acetate)2Cl2] was determined by single crystal X-ray diffraction method. There were two crystallographically independent molecules, both of which lie on crystallographic two-fold axes. The bond lengths and bond angles of both the molecules were the same within the experimental error. The compound crystallizes in the monoclinic space group C2, with a = 11.180(2) A, b = 14.736(3) A, c = 10.644(2) A, beta = 112.38(3) degrees, Z = 4 and R = 0.0336, based upon a total of 1648 collected reflections. In this complex, the platinum had a slightly distorted octahedron geometry owing to the presence of a geometrically strained five-member ring. The two adjacent corners of the platinum plane were occupied by the two amino nitrogens of DACH, whereas the other two equatorial positions were occupied by two chloride ions. The remaining two axial positions were occupied by the oxygens of acetate ligands. The DACH ring was in a chair configuration. An intricate network of intermolecular hydrogen bonds held the crystal lattice together. These analogues were evaluated in vitro and demonstrated cytotoxic activity against the human ovarian 2008 tumor cell line (IC50 = 0.001-0.06 microM). Structure-activity study revealed that activity was highest for the analogue where L = butyrate.
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Affiliation(s)
- S R Ali Khan
- Department of Clinical Investigation, The University of Texas, M. D. Anderson Cancer Center, Houston 77030, USA
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