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Zielińska-Błajet M, Pietrusiak P, Feder-Kubis J. Selected Monocyclic Monoterpenes and Their Derivatives as Effective Anticancer Therapeutic Agents. Int J Mol Sci 2021; 22:4763. [PMID: 33946245 PMCID: PMC8124601 DOI: 10.3390/ijms22094763] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 02/06/2023] Open
Abstract
Terpenes-a diverse group of secondary metabolites-constitute the largest class of natural products abundant in almost every plant species. The properties of concrete terpenes and essential oils have been intensively studied due to their widespread use in the pharmaceutical, food and cosmetics industries. Despite the popularity of these aromatic compounds, their derivatives, terpenoids, are still not comprehensively characterized despite exhibiting potent bioactive properties. This review aims to assess the anticancer properties of selected monoterpenes including carvone, carvacrol, perillyl alcohol, perillaldehyde, limonene, menthol and their derivatives while also evaluating potential applications as novel anticancer treatments. Special attention is paid to functional groups that improve the bioactivity of monoterpene molecules. This review also covers the therapeutic potential of deep eutectic solvents that contain monoterpene substances. Taken together, the literature supports the use of monoterpene derivatives in the development of new alternatives for disease treatment and prevention.
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Affiliation(s)
- Mariola Zielińska-Błajet
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | | | - Joanna Feder-Kubis
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
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2
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Current State of Platinum Complexes for the Treatment of Advanced and Drug-Resistant Breast Cancers. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1152:253-270. [DOI: 10.1007/978-3-030-20301-6_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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3
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Akhmadishina RA, Kuznetsova EV, Sadrieva GR, Sabirzyanova LR, Nizamov IS, Akhmedova GR, Nizamov ID, Abdullin TI. Glutathione salts of O,O-diorganyl dithiophosphoric acids: Synthesis and study as redox modulating and antiproliferative compounds. Peptides 2018; 99:179-188. [PMID: 28993278 DOI: 10.1016/j.peptides.2017.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/16/2017] [Accepted: 10/05/2017] [Indexed: 01/23/2023]
Abstract
Reactions of glutathione (GSH) with O,O-diorganyl dithiophosphoric acids (DTPA) were studied to develop bioactive derivatives of GSH. Effective coupling reaction of GSH with DTPA was proposed to produce the ammonium dithiophosphates (GSH-DTPA) between the NH2 group in γ-glutamyl residue of GSH and the SH group in DTPA. A series of the GSH-DTPA salts based on O-alkyl or O-monoterpenyl substituted DTPA were synthesized. Enhanced radical scavenging activity of the GSH-DTPA over GSH was established with the use of DPPH assay and improved fluorescent assay which utilizes Co/H2O2 Fenton-like reaction. Similarly to GSH, the dithiophosphates induced both pro- and antioxidant effects in vitro attributed to different cellular availability of the compounds. Whereas extracellularly applied GSH greatly stimulated proliferation of cancer cells (PC-3, vinblastine-resistant MCF-7 cells), the GSH-DTPA exhibited antiproliferative activity, which was pronounced for the O-menthyl and O-isopinocampheolyl substituted compounds 3d and 3e (IC50≥1μM). Our results show that the GSH-DTPA are promising redox modulating and antiproliferative compounds. The approach proposed can be extended to modification and improvement of bioactivity of various natural and synthetic peptides.
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Affiliation(s)
- Rezeda A Akhmadishina
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia
| | - Elena V Kuznetsova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia
| | - Gulnaz R Sadrieva
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia
| | - Leysan R Sabirzyanova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia
| | - Ilyas S Nizamov
- Alexander Butlerov Institute of Chemistry, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia.
| | - Gulnaz R Akhmedova
- Alexander Butlerov Institute of Chemistry, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia
| | - Ilnar D Nizamov
- Alexander Butlerov Institute of Chemistry, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia
| | - Timur I Abdullin
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, 18 Kremlyovskaya St., Russia.
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Sokolova AS, Yarovaya OI, Semenova MD, Shtro AA, Orshanskaya IR, Zarubaev VV, Salakhutdinov NF. Synthesis and in vitro study of novel borneol derivatives as potent inhibitors of the influenza A virus. MEDCHEMCOMM 2017; 8:960-963. [PMID: 30108810 PMCID: PMC6072209 DOI: 10.1039/c6md00657d] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 02/28/2017] [Indexed: 01/24/2023]
Abstract
Herein, we present the design and synthesis of a series of novel heterocyclic derivatives of (-)-borneol and (-)-isoborneol as potent inhibitors of the influenza A virus. All compounds were tested for their toxicity against MDCK cells and for virus-inhibiting activity against the influenza virus A/Puerto Rico/8/34 (H1N1). Compounds 7, 16 and 26 containing a morpholine fragment exhibited the highest efficiency as agents inhibiting the replication of the influenza virus A(H1N1) with selectivity indices of 82, 45 and 65, correspondingly. Derivatives 9 (SI = 23) and 18 (SI = 25) containing a 1-methylpiperazine motif showed moderate antiviral activity. Structure-activity analysis of this new series of borneol derivatives revealed that a 1,7,7-trimethylbicyclo[2.2.1]heptan scaffold is required for the antiviral activity.
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Affiliation(s)
- A S Sokolova
- Novosibirsk Institute of Organic Chemistry , Siberian Branch of the Russian Academy of Sciences , Lavrentjev Avenue 9 , 630090 Novosibirsk , Russia .
- Novosibirsk State University , Pirogova St. 2 , 630090 Novosibirsk , Russia
| | - O I Yarovaya
- Novosibirsk Institute of Organic Chemistry , Siberian Branch of the Russian Academy of Sciences , Lavrentjev Avenue 9 , 630090 Novosibirsk , Russia .
- Novosibirsk State University , Pirogova St. 2 , 630090 Novosibirsk , Russia
| | - M D Semenova
- Novosibirsk Institute of Organic Chemistry , Siberian Branch of the Russian Academy of Sciences , Lavrentjev Avenue 9 , 630090 Novosibirsk , Russia .
| | - A A Shtro
- Laboratory of Chemotherapy , Influenza Research Institute , Prof. Popova St. 15/17 , 197376 St. Petersburg , Russia
| | - I R Orshanskaya
- Laboratory of Chemotherapy , Influenza Research Institute , Prof. Popova St. 15/17 , 197376 St. Petersburg , Russia
| | - V V Zarubaev
- Laboratory of Chemotherapy , Influenza Research Institute , Prof. Popova St. 15/17 , 197376 St. Petersburg , Russia
| | - N F Salakhutdinov
- Novosibirsk Institute of Organic Chemistry , Siberian Branch of the Russian Academy of Sciences , Lavrentjev Avenue 9 , 630090 Novosibirsk , Russia .
- Novosibirsk State University , Pirogova St. 2 , 630090 Novosibirsk , Russia
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Pantelić N, Zmejkovski BB, Kolundžija B, Crnogorac MĐ, Vujić JM, Dojčinović B, Trifunović SR, Stanojković TP, Sabo TJ, Kaluđerović GN. In vitro antitumor activity, metal uptake and reactivity with ascorbic acid and BSA of some gold(III) complexes with N,N'-ethylenediamine bidentate ester ligands. J Inorg Biochem 2017; 172:55-66. [PMID: 28433833 DOI: 10.1016/j.jinorgbio.2017.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/24/2017] [Accepted: 04/02/2017] [Indexed: 12/24/2022]
Abstract
Four novel gold(III) complexes of general formulae [AuCl2{(S,S)-R2eddl}]PF6 (R2eddl=O,O'-dialkyl-(S,S)-ethylenediamine-N,N'-di-2-(4-methyl)pentanoate, R=n-Pr, n-Bu, n-Pe, i-Bu; 1-4, respectively), were synthesized and characterized by elemental analysis, UV/Vis, IR, and NMR spectroscopy, as well as high resolution mass spectrometry. Density functional theory calculations pointed out that (R,R)-N,N'-configuration diastereoisomers were energetically the most favorable. Duo to high cytotoxic activity complex 3 was chosen for stability study in DMSO, no decomposition occurs within 24h, and for the reaction with ascorbic acid in which was reduced immediately. Additionally, 3 interacts with bovine serum albumin (BSA) as proven by UV/Vis spectroscopy. In vitro antitumor activity was determined against human cervix adenocarcinoma (HeLa), human myelogenous leukemia (K562), and human melanoma (Fem-x) cancer cell lines, as well as against non-cancerous human embryonic lung fibroblast cells MRC-5. The highest activity was observed against K562 cells (IC50: 5.04-6.51μM). Selectivity indices showed that these complexes are less toxic than cisplatin. 3 had a similar viability kinetics on HeLa cells as cisplatin. Drug accumulation studies in HeLa cells showed that the total gold uptake increased much faster than that of cisplatin pointing out that 3 more efficiently enters the cells than cisplatin. Furthermore, morphological and cell cycle analysis reveal that gold(III) complexes induced apoptosis in time- and dose-dependent manner.
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Affiliation(s)
- Nebojša Pantelić
- Department of Chemistry and Biochemistry, Faculty of Agriculture, University of Belgrade, Nemanjina 6, Belgrade, Zemun, Serbia
| | - Bojana B Zmejkovski
- Department of Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Studentski trg 14, 11000 Belgrade, Serbia
| | | | | | - Jelena M Vujić
- Faculty of Agronomy, University of Kragujevac, Cara Dušana 34, 32000 Čačak, Serbia
| | - Biljana Dojčinović
- Department of Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Studentski trg 14, 11000 Belgrade, Serbia
| | - Srećko R Trifunović
- Department of Chemistry Faculty of Science University of Kragujevac, R. Domanovica 12, P. O. Box 60, 34 000 Kragujevac, Serbia
| | | | - Tibor J Sabo
- Faculty of Chemistry, University of Belgrade, P.O. Box 158, 11001 Belgrade, Serbia
| | - Goran N Kaluđerović
- Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry, Weinberg 3, D 06120 Halle (Saale), Germany.
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Biersack B. Interactions between anticancer active platinum complexes and non-coding RNAs/microRNAs. Noncoding RNA Res 2017; 2:1-17. [PMID: 30159416 PMCID: PMC6096430 DOI: 10.1016/j.ncrna.2016.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/07/2016] [Accepted: 10/07/2016] [Indexed: 12/13/2022] Open
Abstract
Platinum(II) complexes such as cisplatin, carboplatin and oxaliplatin are clinically approved for the therapy of various solid tumors. Challenging pathogenic properties of cancer cells and the response of cancers towards platinum-based drugs are strongly influenced by non-coding small RNA molecules, the microRNAs (miRNAs). Both increased platinum activity and formation of tumor resistance towards platinum drugs are controlled by miRNAs. This review gives an overview of the interactions between platinum-based drugs and miRNAs, and their influence on platinum activity in various cancer types is discussed.
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Key Words
- 5-FU, 5-fluorouracil
- Anticancer drugs
- CBDCA, cyclobutane-1,1-dicarboxylate
- Carboplatin
- Cisplatin
- DACH, 1,2-diaminocyclohexane
- DDP, cisplatin
- EGCG, (−)-epigallocatechin-3-gallate
- EOX, epirubicin/oxaliplatin/xeloda
- FOLFOX, folinate/5-FU/oxaliplatin
- GC, gemcitabine/cisplatin, gastric cancer
- LNA, locked nucleic acid
- MVAC, methotrexate/vinblastine/adriamycin/cisplatin
- MicroRNA
- Oxaliplatin
- Platinum complexes
- XELOX, xeloda/oxaliplatin
- dTTP, deoxythymidine triphosphate
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7
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Biersack B. Current state of phenolic and terpenoidal dietary factors and natural products as non-coding RNA/microRNA modulators for improved cancer therapy and prevention. Noncoding RNA Res 2016; 1:12-34. [PMID: 30159408 PMCID: PMC6096431 DOI: 10.1016/j.ncrna.2016.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/20/2016] [Accepted: 07/20/2016] [Indexed: 02/06/2023] Open
Abstract
The epigenetic regulation of cancer cells by small non-coding RNA molecules, the microRNAs (miRNAs), has raised particular interest in the field of oncology. These miRNAs play crucial roles concerning pathogenic properties of cancer cells and the sensitivity of cancer cells towards anticancer drugs. Certain miRNAs are responsible for an enhanced activity of drugs, while others lead to the formation of tumor resistance. In addition, miRNAs regulate survival and proliferation of cancer cells, in particular of cancer stem-like cells (CSCs), that are especially drug-resistant and, thus, cause tumor relapse in many cases. Various small molecule compounds were discovered that target miRNAs that are known to modulate tumor aggressiveness and drug resistance. This review comprises the effects of naturally occurring small molecules (phenolic compounds and terpenoids) on miRNAs involved in cancer diseases.
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Key Words
- 1,25-D, 1,25-dihydroxyvitamin D3
- 18-AGA, 18α-glycyrrhetinic acid
- 3,6-DHF, 3,6-dihydroxyflavone
- AKBA, 3-acetyl-11-keto-β-boswellic acid
- Anticancer drugs
- CAPE, caffeic acid phenethyl ester
- CDODA-Me, methyl 2-cyano-3,11-dioxo-18β-olean-1,12-dien-30-oate
- Dox, doxorubicin
- EGCG, (−)-epigallocatechin-3-O-gallate
- MicroRNA
- PEG, polyethylene glycol
- PPAP, polycyclic polyprenylated acylphloroglucinol
- Polyphenols
- RA, retinoic acid
- ROS, reactive oxygen species
- TQ, thymoquinone
- Terpenes
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Affiliation(s)
- Bernhard Biersack
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
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Johnstone TC, Suntharalingam K, Lippard SJ. The Next Generation of Platinum Drugs: Targeted Pt(II) Agents, Nanoparticle Delivery, and Pt(IV) Prodrugs. Chem Rev 2016; 116:3436-86. [PMID: 26865551 PMCID: PMC4792284 DOI: 10.1021/acs.chemrev.5b00597] [Citation(s) in RCA: 1654] [Impact Index Per Article: 206.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The platinum drugs, cisplatin, carboplatin, and oxaliplatin, prevail in the treatment of cancer, but new platinum agents have been very slow to enter the clinic. Recently, however, there has been a surge of activity, based on a great deal of mechanistic information, aimed at developing nonclassical platinum complexes that operate via mechanisms of action distinct from those of the approved drugs. The use of nanodelivery devices has also grown, and many different strategies have been explored to incorporate platinum warheads into nanomedicine constructs. In this Review, we discuss these efforts to create the next generation of platinum anticancer drugs. The introduction provides the reader with a brief overview of the use, development, and mechanism of action of the approved platinum drugs to provide the context in which more recent research has flourished. We then describe approaches that explore nonclassical platinum(II) complexes with trans geometry or with a monofunctional coordination mode, polynuclear platinum(II) compounds, platinum(IV) prodrugs, dual-threat agents, and photoactivatable platinum(IV) complexes. Nanoparticles designed to deliver platinum(IV) complexes will also be discussed, including carbon nanotubes, carbon nanoparticles, gold nanoparticles, quantum dots, upconversion nanoparticles, and polymeric micelles. Additional nanoformulations, including supramolecular self-assembled structures, proteins, peptides, metal-organic frameworks, and coordination polymers, will then be described. Finally, the significant clinical progress made by nanoparticle formulations of platinum(II) agents will be reviewed. We anticipate that such a synthesis of disparate research efforts will not only help to generate new drug development ideas and strategies, but also will reflect our optimism that the next generation of approved platinum cancer drugs is about to arrive.
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Affiliation(s)
- Timothy C Johnstone
- 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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D'yakonov VA, Tuktarova RA, Islamov II, Tyumkina TV, Dzhemilev UM. One-pot Modification of Terpene's Methylenecyclobutane Derivatives. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Vladimir A. D'yakonov
- Russian Academy of Sciences; Institute of Petrochemistry and Catalysis; pr. Oktyabrya 141 450075 Ufa Russia
| | - Regina A. Tuktarova
- Russian Academy of Sciences; Institute of Petrochemistry and Catalysis; pr. Oktyabrya 141 450075 Ufa Russia
| | - Ilgiz I. Islamov
- Russian Academy of Sciences; Institute of Petrochemistry and Catalysis; pr. Oktyabrya 141 450075 Ufa Russia
| | - Tatyana V. Tyumkina
- Russian Academy of Sciences; Institute of Petrochemistry and Catalysis; pr. Oktyabrya 141 450075 Ufa Russia
| | - Usein M. Dzhemilev
- Russian Academy of Sciences; Institute of Petrochemistry and Catalysis; pr. Oktyabrya 141 450075 Ufa Russia
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Tuktarova RA, Islamov II, Tyumkina TV, D´yakonov VA, Dzhemilev UM. Synthesis and transformations of metallacycles 44. Cycloalumination of methylenecyclobutane terpene derivatives with Et3Al catalyzed by Cp2ZrCl2. Russ Chem Bull 2015. [DOI: 10.1007/s11172-015-1045-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kaluđerović GN, Dietrich A, Kommera H, Kuntsche J, Mäder K, Mueller T, Paschke R. Liposomes as vehicles for water insoluble platinum-based potential drug: 2-(4-(Tetrahydro-2H-pyran-2-yloxy)-undecyl)-propane-1,3-diamminedichloroplatinum(II). Eur J Med Chem 2012; 54:567-72. [DOI: 10.1016/j.ejmech.2012.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 04/23/2012] [Accepted: 06/04/2012] [Indexed: 10/28/2022]
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Biersack B, Dietrich A, Zoldakova M, Kalinowski B, Paschke R, Schobert R, Mueller T. Lipophilic Pt(II) complexes with selective efficacy against cisplatin-resistant testicular cancer cells. J Inorg Biochem 2011; 105:1630-7. [PMID: 22071088 DOI: 10.1016/j.jinorgbio.2011.08.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 08/01/2011] [Accepted: 08/22/2011] [Indexed: 12/01/2022]
Abstract
A series of dichloridoplatinum(II) complexes with selective and high cytotoxicity [IC(90)(96h)≤3 μM] against cisplatin-resistant 1411HP testicular cancer cells were identified. They bear stationary 6-aminomethylnicotinate or 2,4-diaminobutyrate ligands esterified with lipophilic terpenyl residues, i.e., (-)/(+)-menthyl, (+)-cedrenyl, (-)-menthoxypropyl, or with a decyl-tethered 1,1,2-triphenylethene. They accumulated to a larger extent in 1411HP cells than in cells of the cisplatin-sensitive H12.1 germ cell tumour. Their mechanism of apoptosis induction differed from that of cisplatin by being independent of p53 and of caspase-3 activation and by an early loss of the mitochondrial membrane potential. The new complexes are promising candidates for the treatment of cisplatin-resistant testicular tumours.
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Affiliation(s)
- Bernhard Biersack
- Organic Chemistry Laboratory, University Bayreuth, Bayreuth, Germany
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13
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Schobert R, Seibt S, Effenberger-Neidnicht K, Underhill C, Biersack B, Hammond GL. (Arene)Cl₂Ru(II) complexes with N-coordinated estrogen and androgen isonicotinates: interaction with sex hormone binding globulin and anticancer activity. Steroids 2011; 76:393-9. [PMID: 21184767 DOI: 10.1016/j.steroids.2010.12.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 11/25/2010] [Accepted: 12/15/2010] [Indexed: 11/20/2022]
Abstract
(Arene)dichloridoruthenium(II) complexes with N-coordinated isonicotinates of androgens (6) and estrogens (9) were prepared and tested for affinity to the estrogen receptor (ERα) and sex hormone binding globulin (SHBG), as well as for cytotoxicity in cancer cells. None of the new complexes bound noticeably to the ER and most of them also bound less strongly to SHBG than the corresponding unmetallated steroids 7. In MTT assays the Ru(p-cymene) complexes 9 of 2-substituted estrones were equally or even more cytotoxic than the metal-free steroids against hormone-dependent (MCF-7 breast and KB-V1 cervix carcinomas) and hormone-independent (518A2 melanoma) cells. The addition of external SHBG to MTT assays lowered the cytotoxicities of the complexes 9 and distinctly more so those of some steroids 7, probably by the way of sequestration and reduction of the cellular uptake. In the absence of SHBG the estrogen complexes 9 were internalized by 518A2 melanoma cells and ruthenated their DNA as quantified by ICP-OES. They also ruthenated salmon sperm DNA but did not change the topology of plasmid DNA in EMSA experiments. In addition, the Ru(p-cymene) complex of 2-ethoxyestrone (9c) was shown to reduce the motility of 518A2 melanoma cells in a wound-healing assay.
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Affiliation(s)
- Rainer Schobert
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, D-95440 Bayreuth, Germany.
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14
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Zoldakova M, Biersack B, Kostrhunova H, Ahmad A, Padhye S, Sarkar FH, Schobert R, Brabec V. (Carboxydiamine)Pt(ii) complexes of a combretastatin A-4 analogous chalcone: the influence of the diamine ligand on DNA binding and anticancer effects. MEDCHEMCOMM 2011. [DOI: 10.1039/c1md00042j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Modulation of doxorubicin activity in cancer cells by conjugation with fatty acyl and terpenyl hydrazones. Eur J Med Chem 2010; 45:1947-54. [DOI: 10.1016/j.ejmech.2010.01.037] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2009] [Accepted: 01/16/2010] [Indexed: 01/01/2023]
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16
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Biersack B, Zoldakova M, Effenberger K, Schobert R. (Arene)Ru(II) complexes of epidermal growth factor receptor inhibiting tyrphostins with enhanced selectivity and cytotoxicity in cancer cells. Eur J Med Chem 2010; 45:1972-5. [PMID: 20149940 DOI: 10.1016/j.ejmech.2010.01.040] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 01/15/2010] [Accepted: 01/18/2010] [Indexed: 11/29/2022]
Abstract
Ru(eta6-arene) complexes of epidermal growth factor receptor (EGFR) inhibiting tyrphostins 1a and 1b were prepared, characterized and tested for DNA interaction and bioactivity in four human tumor cell lines. The intrinsic cytotoxicity and cell line selectivity of o-hydroxyanisol 1a was greatly enhanced in its Ru(eta6-p-cymene) complex 2a and in its Ru(eta6-toluene) complex 3a. Complex 2a was particularly efficacious against multi-drug resistant EGFR(+) MCF-7/Topo breast carcinoma cells and also against mTOR-dependent EGFR(-) HL-60 leukemia cells. Complex 3a showed enhanced activity only against 518A2 melanoma cells and HL-60 cells, which are both known to express the mTOR protein. DNA was strongly metallated (ca. 1.7-2%) by all new Ru complexes without undergoing topological changes. Apparently, by complexation to Ru fragments tyrphostin derivatives can address additional biological targets in a manner instrumental to antitumoral strategies.
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Affiliation(s)
- B Biersack
- Organic Chemistry Laboratory, University of Bayreuth, Universitaetsstrasse 30, 95440 Bayreuth, Germany
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17
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Breyer S, Effenberger K, Schobert R. Effects of thymoquinone-fatty acid conjugates on cancer cells. ChemMedChem 2009; 4:761-8. [PMID: 19322799 DOI: 10.1002/cmdc.200800430] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
4-Acylhydrazones and 6-alkyl derivatives of thymoquinone (TQ) were tested for growth inhibition of human HL-60 leukemia, 518A2 melanoma, KB-V1/Vbl cervix, and MCF-7/Topo breast carcinoma cells. Unsaturated side chains conferred greater activities than equally long saturated chains. The number of C==C bonds was less decisive than chain length. The 6-hencosahexaenyl conjugate 3 e was most active in all resistant tumor cells, with IC(50) (72 h) values as low as 30 nM in MCF-7/Topo cells. The conjugates are likely to operate by mechanisms different from that of TQ. For instance, 3 e induced distinct caspase-independent apoptosis in HL-60 and 518A2 cells concomitant with a loss of mitochondrial membrane potential and a subsequent rise in the levels of reactive oxygen species.
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Affiliation(s)
- Sandra Breyer
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstr. 30, 95440 Bayreuth, Germany
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Schobert R, Biersack B, Dietrich A, Knauer S, Zoldakova M, Fruehauf A, Mueller T. Pt(II) Complexes of a Combretastatin A-4 Analogous Chalcone: Effects of Conjugation on Cytotoxicity, Tumor Specificity, and Long-Term Tumor Growth Suppression. J Med Chem 2008; 52:241-6. [PMID: 19102652 DOI: 10.1021/jm801001d] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rainer Schobert
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany, and Department of Internal Medicine IV, Oncology/Hematology, Research Laboratory, Martin Luther University Halle-Wittenberg, 06099 Halle, Germany
| | - Bernhard Biersack
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany, and Department of Internal Medicine IV, Oncology/Hematology, Research Laboratory, Martin Luther University Halle-Wittenberg, 06099 Halle, Germany
| | - Andrea Dietrich
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany, and Department of Internal Medicine IV, Oncology/Hematology, Research Laboratory, Martin Luther University Halle-Wittenberg, 06099 Halle, Germany
| | - Sebastian Knauer
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany, and Department of Internal Medicine IV, Oncology/Hematology, Research Laboratory, Martin Luther University Halle-Wittenberg, 06099 Halle, Germany
| | - Miroslava Zoldakova
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany, and Department of Internal Medicine IV, Oncology/Hematology, Research Laboratory, Martin Luther University Halle-Wittenberg, 06099 Halle, Germany
| | - Angelika Fruehauf
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany, and Department of Internal Medicine IV, Oncology/Hematology, Research Laboratory, Martin Luther University Halle-Wittenberg, 06099 Halle, Germany
| | - Thomas Mueller
- Organic Chemistry Laboratory, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany, and Department of Internal Medicine IV, Oncology/Hematology, Research Laboratory, Martin Luther University Halle-Wittenberg, 06099 Halle, Germany
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Bernhardt G, Biersack B, Bollwein S, Schobert R, Zoldakova M. Terpene Conjugates of Diaminedichloridoplatinum(II) Complexes: Antiproliferative Effects in HL-60 Leukemia, 518A2 Melanoma, and HT-29 Colon Cancer Cells. Chem Biodivers 2008; 5:1645-1659. [DOI: 10.1002/cbdv.200890152] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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