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Ruiz-Muelle AB, García-García A, García-Valdivia AA, Oyarzabal I, Cepeda J, Seco JM, Colacio E, Rodríguez-Diéguez A, Fernández I. Design and synthesis of a family of 1D-lanthanide-coordination polymers showing luminescence and slow relaxation of the magnetization. Dalton Trans 2018; 47:12783-12794. [PMID: 30152820 DOI: 10.1039/c8dt02592d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have designed and synthesized eight isostructural 1D coordination polymers (CPs) with the general formula {[Ln(aapc)3(DMF)]}n [where Ln(iii) = Y (2), La (3), Nd (4), Eu (5), Gd (6), Tb (7), Dy (8), Er (9); and aapc = 3-((anthraquinone-1-yl)amino)propanoate]. These CPs consist of Ln-carboxylate infinite rods in which the bulky anthraquinone scaffolds arise from it in such a way that the resulting supramolecular packing exhibits isolated 1D chains. Solution structures have been corroborated through NMR methods including PGSE and EXSY NMR studies and, due to the presence of lanthanide ions, magnetic and luminescence properties have been studied. Alternating current magnetic measurements of compound 8 show slow relaxation of the magnetization, a characteristic of single molecule magnets (SMMs). The evaluation of solid-state photophysical properties reveals that the aapc scaffold sensitizes lanthanide(iii) based emission of compounds 4-9 both in the visible and near-infrared (NIR) regions at 10 K.
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Affiliation(s)
- Ana Belén Ruiz-Muelle
- Department of Chemistry and Physics, Research Centre CIAIMBITAL, University of Almería, Ctra. Sacramento s/n, 04120 Almería, Spain.
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2
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Zuravka I, Sosic A, Gatto B, Göttlich R. Synthesis and evaluation of a bis-3-chloropiperidine derivative incorporating an anthraquinone pharmacophore. Bioorg Med Chem Lett 2015; 25:4606-9. [PMID: 26342869 DOI: 10.1016/j.bmcl.2015.08.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/15/2015] [Accepted: 08/18/2015] [Indexed: 12/18/2022]
Abstract
With the aim to attain an alkylating agent with enhanced DNA-affinity, we have successfully synthesised lysine-linked bis-3-chloropiperidine 1 bearing an anthraquinone moiety known to bind double-stranded DNA. Consistent with our expectations, compound 1 appears to intercalate into the DNA double helix, which can be observed by conformational changes of plasmid DNA suggesting alkylation and intercalation-induced DNA unwinding. The results of this work can provide a meaningful starting point for investigating the molecular mechanism of action of this novel DNA alkylating conjugate 1 with improved affinity for DNA.
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Affiliation(s)
- Ivonne Zuravka
- Institute of Organic Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany; Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy
| | - Alice Sosic
- Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy
| | - Barbara Gatto
- Dipartimento di Scienze del Farmaco, Università di Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Richard Göttlich
- Institute of Organic Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany.
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3
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Cincinelli R, Musso L, Dallavalle S, Artali R, Tinelli S, Colangelo D, Zunino F, De Cesare M, Beretta GL, Zaffaroni N. Design, modeling, synthesis and biological activity evaluation of camptothecin-linked platinum anticancer agents. Eur J Med Chem 2013; 63:387-400. [PMID: 23517728 DOI: 10.1016/j.ejmech.2013.02.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 02/14/2013] [Accepted: 02/19/2013] [Indexed: 02/07/2023]
Abstract
The design, modeling, synthesis and biological activity evaluation of two hybrid agents formed by 7-oxyiminomethylcamptothecin derivatives and diaminedichloro-platinum (II) complex are reported. The compounds showed growth inhibitory activity against a panel of human tumor cell lines, including sublines resistant to topotecan and platinum compounds. The derivatives were active in all the tested cell lines, and compound 1b, the most active one, was able to overcome cisplatin resistance in the osteosarcoma U2OS/Pt cell line. Platinum-containing camptothecins produced platinum-DNA adducts and topoisomerase I-mediated DNA damage with cleavage pattern and persistence similar to SN38, the active principle of irinotecan. Compound 1b exhibited an appreciable antitumor activity in vivo against human H460 tumor xenograft, comparable to that of irinotecan at lower well-tolerated dose levels and superior to cisplatin. The results support the interpretation that the diaminedichloro-platinum (II) complex conjugated via an oxyiminomethyl linker at the 7-position of the camptothecin resulted in a new class of effective antitumor compounds.
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Affiliation(s)
- Raffaella Cincinelli
- Department of Food, Environmental and Nutritional Sciences, Division of Chemistry and Molecular Biology, Università di Milano, Via Celoria 2, 20133 Milano, Italy
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4
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Zhang JZ, Bonnitcha P, Wexselblatt E, Klein AV, Najajreh Y, Gibson D, Hambley TW. Facile preparation of mono-, di- and mixed-carboxylato platinum(IV) complexes for versatile anticancer prodrug design. Chemistry 2012; 19:1672-6. [PMID: 23255183 DOI: 10.1002/chem.201203159] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Indexed: 11/08/2022]
Abstract
Facile strategies were developed for the versatile functionalization of platinum(IV) axial sites, allowing for easy accessibility to unsymmetric mono- and mixed-carboxylato, as well as symmetric di-substituted platinum(IV) complexes. The first method involves the direct oxidation and carboxylation of the platinum(II) center using an appropriate peroxide and the carboxylate of choice to firstly yield a monocarboxylato monohydroxido platinum(IV) complex. This platinum(IV) intermediate can undergo further carboxylation to give rise to a mixed-carboxylato platinum(IV) complex. The second method involves the activation of the carboxylate of choice by a common carbodiimide coupling reagent, and its reaction with a dihydroxido platinum(IV) precursor to give the monocarboxylato platinum(IV) complex. Uronium salts can be employed to promote efficient dicarboxylation of the dihydroxido platinum(IV) precursor. Lastly, an axial azide pendant group was demonstrated to be suitable for orthogonal "click" conjugation reactions.
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Affiliation(s)
- Jenny Z Zhang
- School of Chemistry, The University of Sydney, Sydney, N.S.W., Australia
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5
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Rajakumar P, Anandhan R. Synthesis and In-vitro anti-inflammatory activity of novel glycodendrimers with benzene 1,3,5 carboxamide core and triazole as branching unit. Eur J Med Chem 2011; 46:4687-95. [DOI: 10.1016/j.ejmech.2011.06.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2011] [Revised: 06/09/2011] [Accepted: 06/13/2011] [Indexed: 12/31/2022]
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6
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Schäfer A, Wellner A, Gust R. Synthesis and Investigations on the Oxidative Degradation of C3/C5-Alkyl-1,2,4-triarylpyrroles as Ligands for the Estrogen Receptor. ChemMedChem 2011; 6:794-803. [DOI: 10.1002/cmdc.201000537] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Indexed: 11/07/2022]
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7
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Ruiz J, Vicente C, Haro CD, Espinosa A. Synthesis and Antiproliferative Activity of a C,N-Cycloplatinated(II) Complex with a Potentially Intercalative Anthraquinone Pendant. Inorg Chem 2011; 50:2151-8. [DOI: 10.1021/ic101526h] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- José Ruiz
- Departamento de Química Inorgánica, Universidad de Murcia, 30071- Murcia, Spain
| | - Consuelo Vicente
- Departamento de Química Inorgánica, Universidad de Murcia, 30071- Murcia, Spain
| | - Concepción de Haro
- Departamento de Química Inorgánica, Universidad de Murcia, 30071- Murcia, Spain
| | - Arturo Espinosa
- Departamento de Química Orgánica, Universidad de Murcia, 30071- Murcia, Spain
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8
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Kumar S, Matharasi DP, Gopi S, Sivakumar S, Narasimhan S. Synthesis of cytotoxic and antioxidant Schiff's base analogs of aloin. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2010; 12:360-370. [PMID: 20496193 DOI: 10.1080/10286021003775327] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Aloin (10-glucopyranosyl-1,8-dihydroxy-3-hydroxymethyl-9(10H)-anthracenone), a bioactive compound in Aloe vera, although known to have an anticancer effect, has not been used in current drug research. Optimization of the lead structure could enhance the utility of this compound. Hence, aloin was modified using natural amino acids to produce Schiff's base, a potential pharmacophore, and its corresponding aglycones. The synthetic derivatives exhibited significant enhancement in their efficacy toward antioxidant (DPPH radical scavenging) and cytotoxic activities than those of the parent compound, aloin showing promise for application in cancer treatment.
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Affiliation(s)
- S Kumar
- Asthagiri Herbal Research Foundation, Chennai, Tamil Nadu, India
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9
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Gabano E, Marengo E, Bobba M, Robotti E, Cassino C, Botta M, Osella D. 195Pt NMR spectroscopy: A chemometric approach. Coord Chem Rev 2006. [DOI: 10.1016/j.ccr.2006.02.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Alderden RA, Mellor HR, Modok S, Hambley TW, Callaghan R. Cytotoxic efficacy of an anthraquinone linked platinum anticancer drug. Biochem Pharmacol 2006; 71:1136-45. [PMID: 16458859 DOI: 10.1016/j.bcp.2005.12.039] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2005] [Revised: 12/19/2005] [Accepted: 12/20/2005] [Indexed: 11/28/2022]
Abstract
Platinum complexes are widely used in cancer chemotherapy; however, they are associated with toxicity, high "non-specific" reactivity and relatively poor pharmacokinetic profiles. In particular, their low cellular uptake and rapid metabolic inactivation means that the amount of "active" drug reaching the nuclear compartment is low. Our strategy to facilitate nuclear accumulation was to introduce a hydrophobic anthraquinone (1C3) moiety to the Pt-complex. Anthraquinones are known to readily intercalate into DNA strands and hence, the Pt-1C3 complex may represent an effective system for the delivery of the platinum moiety to nuclear DNA. Efficacy of the complex was determined by measuring the extent and potency of cytotoxicity in comparison to cisplatin and an anthraquinone based anticancer drug, doxorubicin. The Pt-1C3 complex generated higher levels of cytotoxicity than cisplatin, with a potency of 19 +/- 4 microM in the DLD-1 cancer cell line. However, this potency was not significantly different to that of the 1C3 moiety alone. To examine the reason for the apparent lack of platinum related cytotoxicity, the cellular distribution was characterised. Confocal fluorescence microscopy indicated that the Pt-1C3 complex was rapidly sequestered into lysosomes, in contrast to the nuclear localisation of doxorubicin. In addition, there was negligible DNA associated Pt following administration of the novel complex. Thus, the addition of a 1C3 moiety generated sequestration of the complex to lysosomes, thereby preventing localisation to the nucleus.
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Affiliation(s)
- R A Alderden
- Centre for Heavy Metals Research, School of Chemistry, The University of Sydney, NSW, Australia
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11
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Targeting platinum anti-tumour drugs: Overview of strategies employed to reduce systemic toxicity. Coord Chem Rev 2005. [DOI: 10.1016/j.ccr.2005.03.005] [Citation(s) in RCA: 254] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Gao J, Woolley FR, Zingaro RA. In Vitro Anticancer Activities and Optical Imaging of Novel Intercalative Non-Cisplatin Conjugates. J Med Chem 2005; 48:7192-7. [PMID: 16279777 DOI: 10.1021/jm050497t] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first pi-conjugated macrocyclic diimine and triaza DNA-binding intercalators and their platinum(II) conjugates have been synthesized by direct Schiff base cyclocondensation. The in vitro anticancer activities of compounds 3, 4, and 5 were tested on five cancer cell lines: MCF-7, A549, P388, A2780, and A2780cisR. Ovarian tumors were included specifically to evaluate the new conjugates' ability to circumvent A2780cisR resistance. Antitumor effects of the newly conjugated compounds were compared to those of cisplatin. The data clearly indicate that improved drug efficiencies are achieved as a result of the intercalative moieties. The luminescent probe that was integrated in complexes 8-10 made it possible to monitor drug penetration using optical imaging. Enhanced targeting of tumor nuclei by the study compounds was confirmed by confocal microscopy. This paper describes a new class of platinum-based antitumorals differing from cisplatin in several critical aspects with the potential for significantly improving clinical outcomes in cancer patients.
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Affiliation(s)
- Jian Gao
- Department of Radiology, School of Medicine, University of Texas Health Science Center at San Antonio, Texas 78229-3900, USA.
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13
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Yiyun C, Tongwen X. Dendrimers as potential drug carriers. Part I. Solubilization of non-steroidal anti-inflammatory drugs in the presence of polyamidoamine dendrimers. Eur J Med Chem 2005; 40:1188-92. [PMID: 16153746 DOI: 10.1016/j.ejmech.2005.06.010] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2005] [Accepted: 06/14/2005] [Indexed: 11/27/2022]
Abstract
The aqueous solubility of non-steroidal anti-inflammatory drugs (NSAIDs) Ketoprofen, Ibuprofen, Diflunisal and Naproxen were measured in the presence of the ethylenediamine (EDA) core polyamidoamine (PAMAM) dendrimers at 37 degrees C. The effect of concentration and generation of the PAMAM dendrimers has been investigated. Results showed that the solubility of NSAIDs in the PAMAM dendrimer solutions was approximately proportional to dendrimer concentration; the solubility of NSAIDs in higher generation PAMAM solutions was in fact higher that those in lower ones; the order of increased solubility of NSAIDs in PAMAM dendrimers at a constant dendrimer concentration and generation was Naproxen>Ketoprofen>Ibuprofen>Diflunisal. Under suitable conditions PAMAM dendrimers can be highly effective used to enhance the solubility of NSAIDs.
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Affiliation(s)
- Cheng Yiyun
- School of Life Science, University of Science and Technology of China, Hefei, Anhui 230027, People's Republic of China.
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14
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Gabano E, Cassino C, Bonetti S, Prandi C, Colangelo D, Ghiglia A, Osella D. Synthesis and characterisation of estrogenic carriers for cytotoxic Pt(ii) fragments: biological activity of the resulting complexes. Org Biomol Chem 2005; 3:3531-9. [PMID: 16172691 DOI: 10.1039/b507716h] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper describes the synthesis and the spectroscopic characterisation of cis-dichloro[N-(4-(17alpha-ethynylestradiolyl)-benzyl)-ethylenediamine]platinum(II) and cis-diamino[2-(4-(17alpha-ethynylestradiolyl)-benzoylamino)-malonato]platinum(II). These complexes were synthesised in good yield according to multi-step procedures based on the classical and non-classical Sonogashira coupling reaction, respectively. These compounds retain an acceptable degree of relative binding affinity (RBA) for the alpha form of estrogen receptor. Combined treatment of breast cancer cell lines, namely hormone-sensitive MCF-7 and hormone-insensitive MDA-MB-231 cell lines, indicates that these compounds maintain agonistic activity so that the potential advantage in vehiculation of the cytotoxic moiety by means of the receptor system is counteracted by the proliferative effect of the estrogenic component of the entire molecule, especially at low concentrations.
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Affiliation(s)
- Elisabetta Gabano
- Dipartimento di Scienze dell'Ambiente e della Vita, Università del Piemonte Orientale A. Avogadro, Spalto Marengo 33, 15100 Alessandria, Italy
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15
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Aronov O, Horowitz AT, Gabizon A, Fuertes MA, Pérez JM, Gibson D. Nuclear Localization Signal-Targeted Poly(ethylene glycol) Conjugates as Potential Carriers and Nuclear Localizing Agents for Carboplatin Analogues. Bioconjug Chem 2004; 15:814-23. [PMID: 15264869 DOI: 10.1021/bc0499331] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Carboplatin is a low-molecular-weight anticancer drug that acts by binding to the nuclear DNA of cells. Thus, efficient delivery of the platinum drugs to the nucleus of the cancer cells may enhance the cytotoxicity of the drug. Efficient drug delivery to the nucleus of cancer cells requires three levels of localization: targeting to the cancerous tissue, accumulation in the cancer cells, and intracellular localization in the nucleus. Nuclear localization signals (NLS) are short positively charged basic peptides that actively transport large proteins across the nuclear membrane. We have prepared conjugates in which the NLS is tethered to poly(ethyleneglycol)carboplatin conjugate (NLS-PEG-Pt) and compared their pharmacological properties to those of their untargeted analogues that do not possess the NLS (PEG-Pt). NLS-PEG-Pt conjugates are rapidly internalized into cancer cells and accumulate in the nucleus. Despite their rapid nuclear localization, they form less Pt-DNA adducts than the untargeted analogues, PEG-Pt, and are also less cytotoxic. These results support the hypothesis that carboplatin (unlike cisplatin) may require cytosolic activation prior to its binding to nuclear DNA.
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Affiliation(s)
- Olga Aronov
- Department of Medicinal Chemistry and Natural Products, School of Pharmacy, P.O. Box 12065, The Hebrew University of Jerusalem, 91120, Israel
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16
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Jansen BAJ, Wielaard P, Kalayda GV, Ferrari M, Molenaar C, Tanke HJ, Brouwer J, Reedijk J. Dinuclear platinum complexes with N,N′-bis(aminoalkyl)-1,4-diaminoanthraquinones as linking ligands. Part I. Synthesis, cytotoxicity, and cellular studies in A2780 human ovarian carcinoma cells. J Biol Inorg Chem 2004; 9:403-13. [PMID: 15071767 DOI: 10.1007/s00775-004-0539-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2003] [Accepted: 03/11/2004] [Indexed: 10/26/2022]
Abstract
A series of N, N'-bis(aminoalkyl)-1,4-diaminoanthraquinones (aminoalkyl=2-aminoethyl, 3-aminoprop-1-yl and 4-aminobut-1-yl) was functionalized with trans-platinum DNA-binding moieties. Cytotoxicity testing in A2780 human ovarian carcinoma cells revealed high anticancer activity of the formed cationic dinuclear platinum complexes. The cationic dinuclear platinum complexes with the shortest aminoalkyl chain were shown to be the most active, which agrees with the structure-activity relationship found for the corresponding free ligands without platinum. The N, N'-bis(aminoalkyl)-1,4-diaminoanthraquinones partly circumvent cisplatin resistance, whereas their dinuclear platinum complexes were found susceptible to the resistance mechanisms in A2780cisR. The platinum complexes have resistance factors comparable to the control dinuclear complex BBR3005 [(trans-PtCl(NH3)2)2)(micro-(NH2(CH2)6NH2))](NO3)2. The 1,4-diaminoanthraquinone moiety is fluorescent, and thus the cellular processing of the compounds could be monitored by time-lapse digital fluorescence microscopy. The intercalators without platinum were shown to enter the cells within minutes. The platinum complexes enter the cells more slowly. Most likely, the positive charges of the platinum complexes hamper the diffusion through the membrane. Interestingly, the platinum complexes are processed differently than the platinum-free compounds by the cells. After 24 hours the fluorescent platinum complexes are encapsulated in large vesicles in the cytosol. Co-localization of the anthraquinone fluorescence with Lysotracker Green DND-26 shows that these vesicles are acidic compartments, probably lysosomes.
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Affiliation(s)
- Bart A J Jansen
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
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17
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Ellis LT, Perkins DF, Turner P, Hambley TW. The preparation and characterisation of cyclam/anthraquinone macrocyle/intercalator complexes and their interactions with DNA. Dalton Trans 2003. [DOI: 10.1039/b302123h] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Gude L, Fernández MJ, Grant KB, Lorente A. DNA Interaction and photonicking properties of DNA-targeted acridine (2,2'-Bipyridine)platinum(II) complexes. Bioorg Med Chem Lett 2002; 12:3135-9. [PMID: 12372518 DOI: 10.1016/s0960-894x(02)00657-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of two (2,2'-bipyridine)platinum(II) complexes tethered to one or two acridine chromophores is reported. These acridine complexes efficiently unwind and photocleave supercoiled plasmid DNA under physiological conditions of temperature and pH.
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Affiliation(s)
- Lourdes Gude
- Departamento de Qui;mica Orgánica, Universidad de Alcalá, 28871-Alcalá de Henares, Madrid, Spain
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19
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Anthracene and naphthalene (2,2′-bipyridine)platinum(II) conjugates: synthesis and DNA photocleavage. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00937-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Kim YS, Kim KM, Song R, Jun MJ, Sohn YS. Synthesis, characterization and antitumor activity of quinolone-platinum(II) conjugates. J Inorg Biochem 2001; 87:157-63. [PMID: 11730897 DOI: 10.1016/s0162-0134(01)00345-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of quinolone-platinum(II) conjugates, [Pt(Q'-NH2)(dmso)X2] and cis-[Pt(Q"-en)X2], where Q' and Q" are quinolones (flumequine, nalidixic acid or oxolinic acid) linked to monodentate and bidentate amine ligands, respectively, and X2 is Cl2 or 1,1-cyclobutanedicarboxylate, have been synthesized with the aim of examining the synergetic antitumor activity of quinolone intercalation and platinum(II) chelation. The complexes were characterized by elemental analyses and IR and multinuclear (1H and 195Pt) NMR spectroscopies, and then subjected to in vitro and in vivo bioassays using the leukemia L1210 cell line.
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Affiliation(s)
- Y S Kim
- Department of Chemistry, Ewha Womans University, 120-750, Seoul, South Korea
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Novel spacer linked bile acid–cisplatin compounds as a model for specific drug delivery, synthesis and characterization. Inorganica Chim Acta 2000. [DOI: 10.1016/s0020-1693(00)00095-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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