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Fang J, Wei X, Sapp JB, Deng Y. Novel platinum(II) complexes containing diaminocyclohexane and thiourea derivative ligands: Synthesis and X-ray crystal structure of (trans-1,2-diaminocyclohexane)dithioureaplatinum(II) nitrate monohydrate. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.11.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Piccinonna S, Margiotta N, Pacifico C, Lopalco A, Denora N, Fedi S, Corsini M, Natile G. Dinuclear Pt(II)-bisphosphonate complexes: a scaffold for multinuclear or different oxidation state platinum drugs. Dalton Trans 2012; 41:9689-99. [PMID: 22782180 DOI: 10.1039/c2dt30712j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Geminal bisphosphonates (BPs), used in the clinic for the treatment of hypercalcaemia and skeletal metastases, have been also exploited for promoting the specific accumulation of platinum antitumor drugs in bone tissue. In this work, the platinum dinuclear complex [{Pt(en)}(2)(μ-AHBP-H(2))](+) (1) (the carbon atom bridging the two phosphorous atoms carrying a 2-ammonioethyl and a hydroxyl group, AHBP-H(2)) has been used as scaffold for the synthesis of a Pt(II) trinuclear complex, [{Pt(en)}(3)(μ-AHBP)](+) (2), and a Pt(IV) adamantane-shaped dinuclear complex featuring an oxo-bridge, [{Pt(IV)(en)Cl}(2)(μ-O)(μ-AHBP-H(2))](+) (3) (X-ray structure). Compound 2 undergoes a reversible, pH dependent, rearrangement with a neat switch point around pH = 5.4. Compound 3 undergoes a one-step electrochemical reduction at E(pc) = -0.84 V affording compound 1. Such a potential is far lower than that of glutathione (-0.24 V), nevertheless compound 3 can undergo chemical reduction to 1 by GSH, most probably through a different (inner-sphere) mechanism. In vitro cytotoxicity of the new compounds, tested against murine glioma (C6) and human cervix (HeLa) and hepatoma (HepG2) cell lines, has shown that, while the Pt(IV) dimer 3 is inactive up to a concentration of 50 μM, the two Pt(II) polynuclear compounds 1 and 2 have a cytotoxicity comparable to that of cisplatin with the trinuclear complex 2 generally more active than the dinuclear complex 1.
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Affiliation(s)
- Sara Piccinonna
- Dipartimento Farmaco-Chimico, Università degli Studi di Bari, Via E. Orabona 4, 70125 Bari, Italy
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Antitumor activities and interaction with DNA of oxaliplatin-type platinum complexes with linear or branched alkoxyacetates as leaving groups. J Inorg Biochem 2011; 105:1095-101. [DOI: 10.1016/j.jinorgbio.2011.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 05/11/2011] [Accepted: 05/11/2011] [Indexed: 11/20/2022]
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Margiotta N, Ostuni R, Piccinonna S, Natile G, Zanellato I, Boidi CD, Bonarrigo I, Osella D. Platinum–bisphosphonate complexes have proven to be inactive chemotherapeutics targeted for malignant mesothelioma because of inappropriate hydrolysis. J Inorg Biochem 2011; 105:548-57. [DOI: 10.1016/j.jinorgbio.2010.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 12/23/2010] [Accepted: 12/23/2010] [Indexed: 01/05/2023]
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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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Marqués-Gallego P, Contaldi S, den Dulk H, Monari M, Brouwer J, Jaehde U, Kalayda GV, Reedijk J. Relevance of the leaving group for antitumor activity of new platinum(II) compounds containing anthracene derivatives as a carrier ligand. J Inorg Biochem 2009; 103:1602-8. [PMID: 19783310 DOI: 10.1016/j.jinorgbio.2009.08.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2009] [Revised: 08/27/2009] [Accepted: 08/28/2009] [Indexed: 10/20/2022]
Abstract
A new anticancer-active platinum(II) compound [Pt(A9pyp)(dmso)(cbdca)], containing the E-1-(9-anthryl)-3-(2-pyridyl)-2-propenone ligand (abbreviated as A9pyp) has been synthesized by the replacement of the anionic chloride ligands in cis-[Pt(A9pyp)(dmso)Cl(2)] by the dianionic chelating cyclobutanedicarboxylate ligand (abbreviated as cbdca). The in vitro relevance of the leaving group of these new platinum(II) compounds has been investigated. Measurements of the time-dependent intracellular accumulation of both compounds in human ovarian carcinoma cell lines show that the leaving group affects their cellular uptake. In addition, the leaving group also influences DNA platination, and, therefore, has an effect on the biological activity against a pair of human ovarian carcinoma cell lines, i.e. sensitive and resistant to cisplatin.
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Affiliation(s)
- Patricia Marqués-Gallego
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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Platinum(II) compounds with chelating ligands based on pyridine and pyrimidine: DNA and protein binding studies. J Inorg Biochem 2009; 103:1288-97. [DOI: 10.1016/j.jinorgbio.2009.07.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2009] [Revised: 06/30/2009] [Accepted: 07/06/2009] [Indexed: 11/20/2022]
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Margiotta N, Ostuni R, Gandin V, Marzano C, Piccinonna S, Natile G. Synthesis, characterization, and cytotoxicity of dinuclear platinum-bisphosphonate complexes to be used as prodrugs in the local treatment of bone tumours. Dalton Trans 2009:10904-13. [DOI: 10.1039/b919721d] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Margiotta N, Capitelli F, Ostuni R, Natile G. A new dinuclear platinum complex with a nitrogen-containing geminal bisphosphonate as potential anticancer compound specifically targeted to bone tissues. J Inorg Biochem 2008; 102:2078-86. [PMID: 18760482 DOI: 10.1016/j.jinorgbio.2008.07.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2008] [Revised: 07/16/2008] [Accepted: 07/17/2008] [Indexed: 11/17/2022]
Abstract
The paper describes the synthesis and characterization of a new platinum dinuclear complex (2) bearing a nitrogen-containing geminal bisphosphonate (NBP, 1), structurally related to the commercial drug risedronate. NBPs themselves have shown in quite a few cases to be endowed with anticancer activity, therefore the new platinum complex has two potential antitumor moieties (the NBP ligand and the platinum residue) and could have high affinity for bone tumors or metastases (due to the presence of NBP). The free bisphosphonate (1) has been crystallized by a sol-gel method and characterized by X-ray diffraction analysis. The platinum complex (2) has been found to have a dinuclear structure with the bisphosphonate bridging two platinum moieties in a W conformation.
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Affiliation(s)
- Nicola Margiotta
- Dipartimento Farmaco-Chimico, Università degli Studi di Bari, via Orabona 4, 70125 Bari, Italy.
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Yu Y, Lou LG, Liu WP, Zhu HJ, Ye QS, Chen XZ, Gao WG, Hou SQ. Synthesis and anticancer activity of lipophilic platinum(II) complexes of 3,5-diisopropylsalicylate. Eur J Med Chem 2008; 43:1438-43. [DOI: 10.1016/j.ejmech.2007.09.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2007] [Revised: 09/03/2007] [Accepted: 09/07/2007] [Indexed: 10/22/2022]
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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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Liu X, Shen H, Zhu H, Cui K, Gou S. In vitro cytotoxicity study on platinum (II) complexes with epoxysuccinates as leaving groups. Bioorg Med Chem Lett 2007; 17:3831-4. [PMID: 17533124 DOI: 10.1016/j.bmcl.2007.05.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2006] [Revised: 04/11/2007] [Accepted: 05/08/2007] [Indexed: 10/23/2022]
Abstract
A series of novel cisplatin-type platinum complexes were designed, characteristic of epoxysuccinates as leaving groups. The pertinent compounds were prepared and characterized by IR, (1)H NMR, and ESI-MS spectra with elementary analyses. The in vitro cytotoxic activities of compounds toward SPC-A1 human lung adenocarcinoma cell line and BGC823 human stomach adenocarcinoma cell line were determined. Biological tests have confirmed that complexes containing 4R,5R-DMID [abbreviation of (4R,5R)-4,5-bis (aminomethyl)-2-isopropyl-1,3-dioxolane] as carrier ligands have greater cytotoxicity toward tumor cells than the corresponding compounds with other carrier ligands. Most platinum complexes with trans-epoxysuccinates usually have higher cytotoxicity than those with cis-epoxysuccinates. Complex 4a shows the most effective among those tested platinum complexes in both cell lines, and its cytotoxicity approached that of cisplatin.
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Affiliation(s)
- Xia Liu
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
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Ye QS, Lou LG, Liu WP, Yu Y, Chen XZ, Hou SQ, Gao WQ, Liu Y. Synthesis and in vitro cytotoxicity of novel lipophilic (diamine)platinum(II) complexes of salicylate derivatives. Bioorg Med Chem Lett 2007; 17:2146-9. [PMID: 17306532 DOI: 10.1016/j.bmcl.2007.01.084] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2006] [Revised: 01/08/2007] [Accepted: 01/29/2007] [Indexed: 11/26/2022]
Abstract
Novel lipophilic (diamine)platinum(II) complexes of salicylate derivatives as the leaving groups were synthesized and characterized by elemental analysis, FAB(+)-MS, FT-IR, and (1)H NMR spectroscopy. Most of the resulting platinum complexes had high solubility in organic solvents such as ethanol, acetone, and ether, and had right partition coefficient suited to be encapsulated in liposomes. The pertinent complexes were evaluated for their in vitro cytotoxicity against A549 human lung carcinoma and SGC-7901 human gastric carcinoma cell lines. They showed better cytotoxic activity than carboplatin and oxaliplatin.
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Affiliation(s)
- Qing-Song Ye
- Platinum-Based Drug Lab, Kunming Institute of Precious Metals, Kunming 650021, China
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Margiotta N, Ostuni R, Teoli D, Morpurgo M, Realdon N, Palazzo B, Natile G. Bisphosphonate complexation and calcium doping in silica xerogels as a combined strategy for local and controlled release of active platinum antitumor compounds. Dalton Trans 2007:3131-9. [PMID: 17637988 DOI: 10.1039/b705239a] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The production of bone substitute biomimetic materials which could also act as antitumoral drug release agents is of enormous interest. We report in this paper the synthesis and characterization of a novel platinum dinuclear complex containing a geminal bisphosphonate and its embodiment into xerogels prepared by the sol-gel method. Our goal was to obtain a hybrid inorganic matrix that could release a platinum species active against bone tumors or metastases, upon local implant. Two silica xerogels were considered: one was composed of pure silica, while the other contained also some calcium as potential release-modulating agent thanks to its high affinity for bisphophonates. The platinum-complex loading capacity of the inorganic matrices, the release kinetics in buffer simulating physiological conditions, and the stability upon storage were investigated as a function of Pt-complex concentration and calcium addition. We found that the presence of calcium in the composites deeply influences not only the stability of the formulations but also the nature of the platinum complex liberated in solution.
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Affiliation(s)
- Nicola Margiotta
- Dipartimento Farmaco-Chimico, Università degli Studi di Bari. Via E. Orabona 4, 70125 Bari, Italy
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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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Lee YA, Yoo KH, Jung OS. Subtle Ligand/Media Effects. Modulation ofcis/transIsomerism in Hydrogen Peroxide Oxidation of Pt(II) to Pt(IV) Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2003. [DOI: 10.1246/bcsj.76.107] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Han I, Jun MS, Kim MK, Kim JC, Sohn YS. Liposome formulations for effective administration of lipophilic malonatoplatinum(II) complexes. Jpn J Cancer Res 2002; 93:1244-9. [PMID: 12460466 PMCID: PMC5926891 DOI: 10.1111/j.1349-7006.2002.tb01230.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
For effective administration of lipophilic trans(+/-)-1,2-diaminocyclohexaneplatinum(II) complexes of malonate derivatives [(dach)PtL, L=allylmalonate (AM), diallylmalonate (DAM), allylbenzylmalonate (ABM), or dibenzylmalonate (DBM)] in aqueous solution, we have applied three different liposome formulations and evaluated their physical and chemical properties, along with their in vitro cytotoxicity. The liposome formulations were composed of DMPC / DMPG [DMPC=1,2-dimyristoyl-sn-glycero-3-phosphocholine, DMPG=1,2-dimyristoyl-sn-glycero-3-(phospho-rac-1-glycerol) (sodium salt)] in different molar ratios (7/3 or 3/7) or an equimolar DOTAP/DOPE formulation (DOTAP=1,2-dioleoyl-3-trimethylammonium propane, DOPE=1,2-dioleoyl-sn-glycero-3-phosphoethanolamine). Preliposomal powders of the platinum complexes were prepared by lyophilization, and reconstituted in aqueous solution to obtain the final liposomal platinum complexes. Due to the lipophilicity of the malonatoplatinum complexes, the entrapment efficiency of drugs within the liposomes was over 90% except for the AM complex, and platinum drug stability was also satisfactory (>90%) in these liposomal systems. In vitro cytotoxicity was tested in human ovarian carcinoma cells sensitive (A2780) and resistant to cisplatin (A2780/PDD). In both cell lines, the liposomal DBM complex was much more cytotoxic than the corresponding DAM and ABM complexes, which means that the more hydrophobic benzyl substituent affords higher cytotoxicity than the allyl substituent in the malonato leaving group. Furthermore, the DBM complex in DMPC/DMPG formulations was effective against both sensitive and resistant A2780 cells (resistance indexes (RI)=1.10-1.49), showing lack of cross-resistance to cisplatin. Therefore, the liposomal DBM complex in the DMPC/DMPG formulations is a promising candidate for stable pharmaceutical liposomal platinum complexes.
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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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Yoo J, Sohn YS, Do Y. Synthesis, structures and antitumor activity of the first crown ester-linked bipyridyl platinum complexes. J Inorg Biochem 1999; 73:187-93. [PMID: 10331247 DOI: 10.1016/s0162-0134(99)00016-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Three new crown ester-linked bipyridine homologs with three, four or five ethylene glycol units, which are bulky and soluble in both hydrophilic and lipophilic media, were synthesized. The reaction of the appropriate macrocycles with K2PtCl4 in water gave yellow cisplatin analogs in good yield. These complexes were converted to carboplatin analogs by exchange of the leaving group. All the compounds were characterized by elemental analysis and various spectroscopic methods. Carboplatin analogs showed good solubility in both hydrophilic and lipophilic media. The crystal structure of 2c, the carboplatin analog with macrocycles containing five ethylene glycol units, was determined by X-ray diffraction: space group P1, a = 9.798(1), b = 12.580(3), c = 13.945(2) A, alpha = 108.61(2), beta = 94.59(1), gamma = 97.42(2) degrees, Z = 2, R = 0.0618. Some of platinum complexes showed a moderate cytotoxic effect on both murine leukemia L1210 and P388 even though they do not have any NH proton.
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Affiliation(s)
- J Yoo
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Taejon, South Korea
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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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