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Hašková P, Applová L, Jansová H, Homola P, Franz KJ, Vávrová K, Roh J, Šimůnek T. Examination of diverse iron-chelating agents for the protection of differentiated PC12 cells against oxidative injury induced by 6-hydroxydopamine and dopamine. Sci Rep 2022; 12:9765. [PMID: 35697900 PMCID: PMC9192712 DOI: 10.1038/s41598-022-13554-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 05/09/2022] [Indexed: 11/09/2022] Open
Abstract
Labile redox-active iron ions have been implicated in various neurodegenerative disorders, including the Parkinson's disease (PD). Iron chelation has been successfully used in clinical practice to manage iron overload in diseases such as thalassemia major; however, the use of conventional iron chelators in pathological states without systemic iron overload remains at the preclinical investigative level and is complicated by the risk of adverse outcomes due to systemic iron depletion. In this study, we examined three clinically-used chelators, namely, desferrioxamine, deferiprone and deferasirox and compared them with experimental agent salicylaldehyde isonicotinoyl hydrazone (SIH) and its boronate-masked prochelator BSIH for protection of differentiated PC12 cells against the toxicity of catecholamines 6-hydroxydopamine and dopamine and their oxidation products. All the assayed chelating agents were able to significantly reduce the catecholamine toxicity in a dose-dependent manner. Whereas hydrophilic chelator desferrioxamine exerted protection only at high and clinically unachievable concentrations, deferiprone and deferasirox significantly reduced the catecholamine neurotoxicity at concentrations that are within their plasma levels following standard dosage. SIH was the most effective iron chelator to protect the cells with the lowest own toxicity of all the assayed conventional chelators. This favorable feature was even more pronounced in prochelator BSIH that does not chelate iron unless its protective group is cleaved in disease-specific oxidative stress conditions. Hence, this study demonstrated that while iron chelation may have general neuroprotective potential against catecholamine auto-oxidation and toxicity, SIH and BSIH represent promising lead molecules and warrant further studies in more complex animal models.
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Affiliation(s)
- Pavlína Hašková
- Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Lenka Applová
- Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Hana Jansová
- Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Pavel Homola
- Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | | | - Kateřina Vávrová
- Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Faculty of Pharmacy, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
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Moutabian H, Ghahramani-Asl R, Mortezazadeh T, Laripour R, Narmani A, Zamani H, Ataei G, Bagheri H, Farhood B, Sathyapalan T, Sahebkar A. The cardioprotective effects of nano-curcumin against doxorubicin-induced cardiotoxicity: A systematic review. Biofactors 2022; 48:597-610. [PMID: 35080781 DOI: 10.1002/biof.1823] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 01/04/2022] [Indexed: 12/18/2022]
Abstract
Although the chemotherapeutic drug, doxorubicin, is commonly used to treat various malignant tumors, its clinical use is restricted because of its toxicity especially cardiotoxicity. The use of curcumin may alleviate some of the doxorubicin-induced cardiotoxic effects. Especially, using the nano-formulation of curcumin can overcome the poor bioavailability of curcumin and enhance its physicochemical properties regarding its efficacy. In this study, we systematically reviewed the potential cardioprotective effects of nano-curcumin against the doxorubicin-induced cardiotoxicity. A systematic search was accomplished based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for the identification of all relevant articles on "the role of nano-curcumin on doxorubicin-induced cardiotoxicity" in the electronic databases of Scopus, PubMed, and Web of Science up to July 2021. One hundred and sixty-nine articles were screened following a predefined set of inclusion and exclusion criteria. Ten eligible scientific papers were finally included in the present systematic review. The administration of doxorubicin reduced the body and heart weights of mice/rats compared to the control groups. In contrast, the combined treatment of doxorubicin and nano-curcumin increased the body and heart weights of animals compared with the doxorubicin-treated groups alone. Furthermore, doxorubicin could significantly induce the biochemical and histological changes in the cardiac tissue; however, coadministration of nano-curcumin formulation demonstrated a pattern opposite to the doxorubicin-induced changes. The coadministration of nano-curcumin alleviates the doxorubicin-induced cardiotoxicity through various mechanisms including antioxidant, anti-inflammatory, and antiapoptotic effects. Also, the cardioprotective effect of nano-curcumin formulation against doxorubicin-induced cardiotoxicity was higher than free curcumin.
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Affiliation(s)
- Hossein Moutabian
- Radiation Sciences Research Center (RSRC), AJA University of Medical Sciences, Tehran, Iran
| | - Ruhollah Ghahramani-Asl
- Department of Medical Physics and Radiological Sciences, Faculty of Paramedicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Tohid Mortezazadeh
- Department of Medical Physics, School of Medicine, Tabriz University of Medical Science, Tabriz, Iran
| | - Reza Laripour
- Radiation Sciences Research Center (RSRC), AJA University of Medical Sciences, Tehran, Iran
| | - Asghar Narmani
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Hamed Zamani
- Department of Medical Physics, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Gholamreza Ataei
- Department of Radiology Technology, Faculty of Paramedical Sciences, Babol University of Medical Sciences, Babol, Iran
| | - Hamed Bagheri
- Radiation Sciences Research Center (RSRC), AJA University of Medical Sciences, Tehran, Iran
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Bagher Farhood
- Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Thozhukat Sathyapalan
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School (HYMS), The University of Hull, Hull, UK
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Pharmaceutical Technology Institute, Mashhad, Iran
- Biotechnology Research Center, Mashhad University of Medical Sciences, Pharmaceutical Technology Institute, Mashhad, Iran
- School of Medicine, The University of Western Australia, Perth, Western Australia, Australia
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Pharmaceutical Technology Institute, Mashhad, Iran
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Pharmaceutical Technology Institute, Mashhad, Iran
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Jirkovský E, Jirkovská A, Bavlovič-Piskáčková H, Skalická V, Pokorná Z, Karabanovich G, Kollárová-Brázdová P, Kubeš J, Lenčová-Popelová O, Mazurová Y, Adamcová M, Lyon AR, Roh J, Šimůnek T, Štěrbová-Kovaříková P, Štěrba M. Clinically Translatable Prevention of Anthracycline Cardiotoxicity by Dexrazoxane Is Mediated by Topoisomerase II Beta and Not Metal Chelation. Circ Heart Fail 2021; 14:e008209. [PMID: 34551586 DOI: 10.1161/circheartfailure.120.008209] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Anthracycline-induced heart failure has been traditionally attributed to direct iron-catalyzed oxidative damage. Dexrazoxane (DEX)-the only drug approved for its prevention-has been believed to protect the heart via its iron-chelating metabolite ADR-925. However, direct evidence is lacking, and recently proposed TOP2B (topoisomerase II beta) hypothesis challenged the original concept. METHODS Pharmacokinetically guided study of the cardioprotective effects of clinically used DEX and its chelating metabolite ADR-925 (administered exogenously) was performed together with mechanistic experiments. The cardiotoxicity was induced by daunorubicin in neonatal ventricular cardiomyocytes in vitro and in a chronic rabbit model in vivo (n=50). RESULTS Intracellular concentrations of ADR-925 in neonatal ventricular cardiomyocytes and rabbit hearts after treatment with exogenous ADR-925 were similar or exceeded those observed after treatment with the parent DEX. However, ADR-925 did not protect neonatal ventricular cardiomyocytes against anthracycline toxicity, whereas DEX exhibited significant protective effects (10-100 µmol/L; P<0.001). Unlike DEX, ADR-925 also had no significant impact on daunorubicin-induced mortality, blood congestion, and biochemical and functional markers of cardiac dysfunction in vivo (eg, end point left ventricular fractional shortening was 32.3±14.7%, 33.5±4.8%, 42.7±1.0%, and 41.5±1.1% for the daunorubicin, ADR-925 [120 mg/kg]+daunorubicin, DEX [60 mg/kg]+daunorubicin, and control groups, respectively; P<0.05). DEX, but not ADR-925, inhibited and depleted TOP2B and prevented daunorubicin-induced genotoxic damage. TOP2B dependency of the cardioprotective effects was probed and supported by experiments with diastereomers of a new DEX derivative. CONCLUSIONS This study strongly supports a new mechanistic paradigm that attributes clinically effective cardioprotection against anthracycline cardiotoxicity to interactions with TOP2B but not metal chelation and protection against direct oxidative damage.
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Affiliation(s)
- Eduard Jirkovský
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., Z.P., P.K.-B., O.L.-P., M.Š.), Charles University, Czech Republic.,Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové (E.J.), Charles University, Czech Republic
| | - Anna Jirkovská
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové (A.J., V.S., J.K., T.Š.), Charles University, Czech Republic
| | - Hana Bavlovič-Piskáčková
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové (H.B.-P., P.Š.-K.), Charles University, Czech Republic
| | - Veronika Skalická
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové (A.J., V.S., J.K., T.Š.), Charles University, Czech Republic
| | - Zuzana Pokorná
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., Z.P., P.K.-B., O.L.-P., M.Š.), Charles University, Czech Republic
| | - Galina Karabanovich
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové (G.K., J.R.), Charles University, Czech Republic
| | - Petra Kollárová-Brázdová
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., Z.P., P.K.-B., O.L.-P., M.Š.), Charles University, Czech Republic
| | - Jan Kubeš
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové (A.J., V.S., J.K., T.Š.), Charles University, Czech Republic
| | - Olga Lenčová-Popelová
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., Z.P., P.K.-B., O.L.-P., M.Š.), Charles University, Czech Republic
| | - Yvona Mazurová
- Department of Histology and Embryology, Faculty of Medicine in Hradec Králové (Y.M.), Charles University, Czech Republic
| | - Michaela Adamcová
- Department of Physiology, Faculty of Medicine in Hradec Králové (M.A.), Charles University, Czech Republic
| | - Alexander R Lyon
- Department of Cardiology, Royal Brompton Hospital and Faculty of Medicine, National Heart and Lung Institute, Imperial College London, United Kingdom (A.R.L.)
| | - Jaroslav Roh
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy in Hradec Králové (G.K., J.R.), Charles University, Czech Republic
| | - Tomáš Šimůnek
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové (A.J., V.S., J.K., T.Š.), Charles University, Czech Republic
| | - Petra Štěrbová-Kovaříková
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové (H.B.-P., P.Š.-K.), Charles University, Czech Republic
| | - Martin Štěrba
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., Z.P., P.K.-B., O.L.-P., M.Š.), Charles University, Czech Republic
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Bavlovič Piskáčková H, Jansová H, Kubeš J, Karabanovich G, Váňová N, Kollárová-Brázdová P, Melnikova I, Jirkovská A, Lenčová-Popelová O, Chládek J, Roh J, Šimůnek T, Štěrba M, Štěrbová-Kovaříková P. Development of water-soluble prodrugs of the bisdioxopiperazine topoisomerase IIβ inhibitor ICRF-193 as potential cardioprotective agents against anthracycline cardiotoxicity. Sci Rep 2021; 11:4456. [PMID: 33627707 PMCID: PMC7904827 DOI: 10.1038/s41598-021-83688-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 01/01/2021] [Indexed: 02/06/2023] Open
Abstract
The bisdioxopiperazine topoisomerase IIβ inhibitor ICRF-193 has been previously identified as a more potent analog of dexrazoxane (ICRF-187), a drug used in clinical practice against anthracycline cardiotoxicity. However, the poor aqueous solubility of ICRF-193 has precluded its further in vivo development as a cardioprotective agent. To overcome this issue, water-soluble prodrugs of ICRF-193 were prepared, their abilities to release ICRF-193 were investigated using a novel UHPLC-MS/MS assay, and their cytoprotective effects against anthracycline cardiotoxicity were tested in vitro in neonatal ventricular cardiomyocytes (NVCMs). Based on the obtained results, the bis(2-aminoacetoxymethyl)-type prodrug GK-667 was selected for advanced investigations due to its straightforward synthesis, sufficient solubility, low cytotoxicity and favorable ICRF-193 release. Upon administration of GK-667 to NVCMs, the released ICRF-193 penetrated well into the cells, reached sufficient intracellular concentrations and provided effective cytoprotection against anthracycline toxicity. The pharmacokinetics of the prodrug, ICRF-193 and its rings-opened metabolite was estimated in vivo after administration of GK-667 to rabbits. The plasma concentrations of ICRF-193 reached were found to be adequate to achieve cardioprotective effects in vivo. Hence, GK-667 was demonstrated to be a pharmaceutically acceptable prodrug of ICRF-193 and a promising drug candidate for further evaluation as a potential cardioprotectant against chronic anthracycline toxicity.
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Affiliation(s)
- Hana Bavlovič Piskáčková
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Hana Jansová
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jan Kubeš
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Galina Karabanovich
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Nela Váňová
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Petra Kollárová-Brázdová
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Iuliia Melnikova
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Anna Jirkovská
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Olga Lenčová-Popelová
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Jaroslav Chládek
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Martin Štěrba
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 03, Hradec Králové, Czech Republic
| | - Petra Štěrbová-Kovaříková
- Department of Pharmaceutical Chemistry and Pharmaceutical Analysis, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
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Wang N, Zhang Y, Liu H, Wang A, Ren T, Gou J, Zhang Y, Yin T, He H, Tang X. Toxicity Reduction and Efficacy Promotion of Doxorubicin in the Treatment of Breast Tumors Assisted by Enhanced Oral Absorption of Curcumin-Loaded Lipid-Polyester Mixed Nanoparticles. Mol Pharm 2020; 17:4533-4547. [PMID: 33201717 DOI: 10.1021/acs.molpharmaceut.0c00718] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Curcumin (CUR), a polyphenol derived from turmeric, exhibits anticancer and anti-inflammatory properties. However, it has poor water solubility, stability, and oral bioavailability. To overcome these limitations, lipid-polyester mixed nanoparticles (NPs) embedded in enteric polymer-EudragitL100-55(Eu) were formulated (CUR-NPs-Eu). NPs composed of mPEG-b-PCL have a hybrid core made up of middle chain triglyceride (MCT) and poly(ε-caprolactone) (PCL) for enhancing drug loading. The CUR-NPs with MCT content of 10% had a particle size of 121.2 ± 16.8 nm, ζ potential of -16.25 ± 1.38 mV, drug loading of 9.8%, and encapsulation efficiency of 87.4%. The transport of the CUR-NPs-Eu across Caco-2 monolayers is enhanced compared with CUR alone (1.98 ± 0.94 × 10-6 of curcumin versus 55.43 ± 6.06 × 10-6 cm/s of curcumin-loaded NPs) because of the non-disassociated nanostructure during absorption. The absolute bioavailability of CUR-NPs-Eu was 7.14%, which was drastically improved from 1.08% of the CUR suspension (CUR-Sus). Therefore, in the xenograft 4T1 tumor-bearing mice, increased drug accumulation in heart and tumor was noticed because of enhanced oral bioavailability of CUR. The chemosensitizing effect of CUR was attributed to its NF-κB reduction effect (148 ± 11.83 of DOX alone versus 104 ± 8.71 of combined therapy, ng/g tissue). The cardioprotective effect of CUR was associated with maintenance of cardiac antioxidant enzyme activity and down-regulation of NF-κB. This study provided a partial illustration of the mechanisms of chemosensitizing and cardioprotective effects of CUR utilizing the oral availability promotion effect brought by the NPs-Eu formulation. And these results further demonstrated that the capability of this NPs-Eu system in oral delivery of poorly soluble and poorly permeable drugs.
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Affiliation(s)
- Na Wang
- School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang 110016, China
| | | | | | - Andong Wang
- School of Pharmacy, Nantong University, Nantong 226001, China
| | - Tianyang Ren
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110001, China
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Reimerová P, Jirkovská A, Piskáčková HB, Karabanovich G, Roh J, Šimůnek T, Štěrbová-Kovaříková P. UHPLC-MS/MS method for analysis of sobuzoxane, its active form ICRF-154 and metabolite EDTA-diamide and its application to bioactivation study. Sci Rep 2019; 9:4524. [PMID: 30872754 PMCID: PMC6418109 DOI: 10.1038/s41598-019-40928-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 02/26/2019] [Indexed: 11/09/2022] Open
Abstract
Sobuzoxane (MST-16) is an approved anticancer agent, a pro-drug of bisdioxopiperazine analog ICRF-154. Due to the structural similarity of ICRF-154 to dexrazoxane (ICRF-187), MST-16 deserves attention as a cardioprotective drug. This study presents for the first time UHPLC-MS/MS assay of MST-16, ICRF-154 and its metabolite (EDTA-diamide) in cell culture medium, buffer, plasma and cardiac cells and provides data on MST-16 bioactivation under conditions relevant to investigation of cardioprotection of this drug. The analysis of these compounds that differ considerably in their lipophilicity was achieved on the Zorbax SB-Aq column using a mixture of aqueous ammonium formate and methanol as a mobile phase. The biological samples were either diluted or precipitated with methanol, which was followed by acidification for the assay of MST-16. The method was validated for determination of all compounds in the biological materials. The application of the method for analysis of samples from in vitro experiments provided important findings, namely, that (1) MST-16 is quickly decomposed in biological environments, (2) the cardiac cells actively metabolize MST-16, and (3) MST-16 readily penetrates into the cardiac cells and is converted into ICRF-154 and EDTA-diamide. These data are useful for the in-depth examination of the cardioprotective potential of this drug.
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Affiliation(s)
- Petra Reimerová
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Anna Jirkovská
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Hana Bavlovič Piskáčková
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Galina Karabanovich
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Petra Štěrbová-Kovaříková
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
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Jansová H, Šimůnek T. Cardioprotective Potential of Iron Chelators and Prochelators. Curr Med Chem 2019; 26:288-301. [DOI: 10.2174/0929867324666170920155439] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 06/07/2017] [Accepted: 09/12/2017] [Indexed: 02/08/2023]
Abstract
Heart is a particularly sensitive organ to iron overload and cardiomyopathy due to the excessive cardiac iron deposition causes most deaths in disorders such as beta-thalassemia major. Free or loosely bound iron ions readily cycle between ferrous and ferric states and catalyze Haber-Weiss reaction that yields highly reactive and toxic hydroxyl radicals. Treatment with iron chelators (desferrioxamine, deferiprone, and deferasirox) substantially improved cardiovascular morbidity and mortality in iron overloaded patients. Furthermore, iron chelators have been studied in various cardiovascular disorders with known or presumed oxidative stress roles (e.g., ischemia/reperfusion injury) also in patients with normal body iron contents. The pharmacodynamic and pharmacokinetic properties of these chelators are critical for effective therapy. For example, the widely clinically used but hydrophilic chelator desferrioxamine suffers from poor plasma membrane permeability, which means that high and clinically unachievable concentrations/doses must be employed to obtain cardioprotection. Therefore, small-molecular and lipophilic chelators with oral availability are more suitable for this purpose, particularly in states without systemic iron overload. Apart from agents that are already used in clinical practice, aroylhydrazone iron chelators, namely salicylaldehyde isonicotinoyl hydrazone (SIH), have provided promising results. However, the use of classical iron-chelating agents is associated with a risk of toxicity due to indiscriminate iron depletion. Recent studies have therefore focused on "masked" prochelators that have little or no affinity for iron until site-specific activation by reactive oxygen species.
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Affiliation(s)
- Hana Jansová
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Prague, Czech Republic
| | - Tomáś Šimůnek
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Prague, Czech Republic
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Jansová H, Kubeš J, Reimerová P, Štěrbová-Kovaříková P, Roh J, Šimůnek T. 2,6-Dihydroxybenzaldehyde Analogues of the Iron Chelator Salicylaldehyde Isonicotinoyl Hydrazone: Increased Hydrolytic Stability and Cytoprotective Activity against Oxidative Stress. Chem Res Toxicol 2018; 31:1151-1163. [DOI: 10.1021/acs.chemrestox.8b00165] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hana Jansová
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jan Kubeš
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Petra Reimerová
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Petra Štěrbová-Kovaříková
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
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Krijt M, Jirkovska A, Kabickova T, Melenovsky V, Petrak J, Vyoral D. Detection and quantitation of iron in ferritin, transferrin and labile iron pool (LIP) in cardiomyocytes using 55Fe and storage phosphorimaging. Biochim Biophys Acta Gen Subj 2018; 1862:2895-2901. [PMID: 30279145 DOI: 10.1016/j.bbagen.2018.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 11/28/2022]
Abstract
Dysregulated iron metabolism has a detrimental effect on cardiac function. The importance of iron homeostasis in cardiac health and disease warrants detailed studies of cardiomyocyte iron uptake, utilization and recycling at the molecular level. In this study, we have performed metabolic labeling of primary cultures of neonatal rat cardiomyocytes with radioactive iron coupled with separation of labeled iron-containing molecules by native electrophoresis followed by detection and quantification of incorporated radioiron by storage phosphorimaging. For the radiolabeling we used a safe and convenient beta emitter 55Fe which enabled sensitive and simultaneous detection and quantitation of iron in cardiomyocyte ferritin, transferrin and the labile iron pool (LIP). The LIP is believed to represent potentially dangerous redox-active iron bound to uncharacterized molecules. Using size-exclusion chromatography spin micro columns, we demonstrate that iron in the LIP is bound to high molecular weight molecule(s) (≥5000 Da) in the neonatal cardiomyocytes.
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Affiliation(s)
- M Krijt
- Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - A Jirkovska
- Charles University, Faculty of Pharmacy in Hradec Kralove, Department of Biochemical Sciences, Hradec Kralove, Czech Republic
| | - T Kabickova
- Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Department of Cell Biology, Faculty of Natural Sciences, Charles University, Prague, Czech Republic
| | - V Melenovsky
- Department of Cardiology, Institute for Clinical and Experimental Medicine (IKEM), Prague, Czech Republic
| | - J Petrak
- BIOCEV, First Faculty of Medicine, Charles University, Vestec, Czech Republic; Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - D Vyoral
- Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic.
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10
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Jirkovský E, Jirkovská A, Bureš J, Chládek J, Lenčová O, Stariat J, Pokorná Z, Karabanovich G, Roh J, Brázdová P, Šimůnek T, Kovaříková P, Štěrba M. Pharmacokinetics of the Cardioprotective Drug Dexrazoxane and Its Active Metabolite ADR-925 with Focus on Cardiomyocytes and the Heart. J Pharmacol Exp Ther 2017; 364:433-446. [PMID: 29273587 DOI: 10.1124/jpet.117.244848] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 12/19/2017] [Indexed: 11/22/2022] Open
Abstract
Dexrazoxane (DEX), the only cardioprotectant approved against anthracycline cardiotoxicity, has been traditionally deemed to be a prodrug of the iron-chelating metabolite ADR-925. However, pharmacokinetic profile of both agents, particularly with respect to the cells and tissues essential for its action (cardiomyocytes/myocardium), remains poorly understood. The aim of this study is to characterize the conversion and disposition of DEX to ADR-925 in vitro (primary cardiomyocytes) and in vivo (rabbits) under conditions where DEX is clearly cardioprotective against anthracycline cardiotoxicity. Our results show that DEX is hydrolyzed to ADR-925 in cell media independently of the presence of cardiomyocytes or their lysate. Furthermore, ADR-925 directly penetrates into the cells with contribution of active transport, and detectable concentrations occur earlier than after DEX incubation. In rabbits, ADR-925 was detected rapidly in plasma after DEX administration to form sustained concentrations thereafter. ADR-925 was not markedly retained in the myocardium, and its relative exposure was 5.7-fold lower than for DEX. Unlike liver tissue, myocardium homogenates did not accelerate the conversion of DEX to ADR-925 in vitro, suggesting that myocardial concentrations in vivo may originate from its distribution from the central compartment. The pharmacokinetic parameters for both DEX and ADR-925 were determined by both noncompartmental analyses and population pharmacokinetics (including joint parent-metabolite model). Importantly, all determined parameters were closer to human than to rodent data. The present results open venues for the direct assessment of the cardioprotective effects of ADR-925 in vitro and in vivo to establish whether DEX is a drug or prodrug.
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Affiliation(s)
- Eduard Jirkovský
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Anna Jirkovská
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Jan Bureš
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Jaroslav Chládek
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Olga Lenčová
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Ján Stariat
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Zuzana Pokorná
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Galina Karabanovich
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Petra Brázdová
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Petra Kovaříková
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Martin Štěrba
- Department of Pharmacology, Faculty of Medicine in Hradec Králové (E.J., J.C., O.L., Z.P., P.B., M.Š.), and Departments of Biochemical Sciences (E.J., A.J., T.Š.), Pharmaceutical Chemistry and Pharmaceutical Analysis (J.B., J.S., P.K.), and Inorganic and Organic Chemistry (G.K., J.R.), Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, Czech Republic
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11
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Bures J, Jirkovska A, Sestak V, Jansova H, Karabanovich G, Roh J, Sterba M, Simunek T, Kovarikova P. Investigation of novel dexrazoxane analogue JR-311 shows significant cardioprotective effects through topoisomerase IIbeta but not its iron chelating metabolite. Toxicology 2017; 392:1-10. [PMID: 28941780 DOI: 10.1016/j.tox.2017.09.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/10/2017] [Accepted: 09/19/2017] [Indexed: 12/31/2022]
Abstract
Novel dexrazoxane derivative JR-311 was prepared to investigate structure-activity relationships and mechanism(s) of protection against anthracycline cardiotoxicity. Its cardioprotective, antiproliferative, iron (Fe) chelation and inhibitory and/or depletory activities on topoisomerase IIbeta (TOP2B) were examined and compared with dexrazoxane. While in standard assay, JR-311 failed in both cardioprotection and depletion of TOP2B, its repeated administration to cell culture media led to depletion of TOP2B and significant protection of isolated rat neonatal ventricular cardiomyocytes from daunorubicin-induced damage. This effect was explained by a focused analytical investigation that revealed rapid JR-311 decomposition, resulting in negligible intracellular concentrations of the parent compound but high exposure of cells to the decomposition products, including Fe-chelating JR-H2. Although chemical instability is an obstacle for the development of JR-311, this study identified a novel dexrazoxane analogue with preserved pharmacodynamic properties, contributed to the investigation of structure-activity relationships and suggested that the cardioprotection of bis-dioxopiperazines is likely attributed to TOP2B activity of the parent compound rather than Fe chelation of their hydrolytic metabolites/degradation products. Moreover, this study highlights the importance of early stability testing during future development of novel dexrazoxane analogues.
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Affiliation(s)
- Jan Bures
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Anna Jirkovska
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Vit Sestak
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Hana Jansova
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Galina Karabanovich
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Martin Sterba
- Faculty of Medicine in Hradec Králové, Charles University, Šimkova 850, 500 03 Hradec Králové, Czech Republic
| | - Tomas Simunek
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Petra Kovarikova
- Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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12
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Are cardioprotective effects of NO-releasing drug molsidomine translatable to chronic anthracycline cardiotoxicity settings? Toxicology 2016; 372:52-63. [DOI: 10.1016/j.tox.2016.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/31/2016] [Accepted: 11/01/2016] [Indexed: 01/27/2023]
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13
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Hašková P, Jansová H, Bureš J, Macháček M, Jirkovská A, Franz KJ, Kovaříková P, Šimůnek T. Cardioprotective effects of iron chelator HAPI and ROS-activated boronate prochelator BHAPI against catecholamine-induced oxidative cellular injury. Toxicology 2016; 371:17-28. [PMID: 27744045 DOI: 10.1016/j.tox.2016.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 09/30/2016] [Accepted: 10/07/2016] [Indexed: 01/08/2023]
Abstract
Catecholamines may undergo iron-promoted oxidation resulting in formation of reactive intermediates (aminochromes) capable of redox cycling and reactive oxygen species (ROS) formation. Both of them induce oxidative stress resulting in cellular damage and death. Iron chelation has been recently shown as a suitable tool of cardioprotection with considerable potential to protect cardiac cells against catecholamine-induced cardiotoxicity. However, prolonged exposure of cells to classical chelators may interfere with physiological iron homeostasis. Prochelators represent a more advanced approach to decrease oxidative injury by forming a chelating agent only under the disease-specific conditions associated with oxidative stress. Novel prochelator (lacking any iron chelating properties) BHAPI [(E)-Ń-(1-(2-((4-(4,4,5,5-tetramethyl-1,2,3-dioxoborolan-2-yl)benzyl)oxy)phenyl)ethylidene) isonicotinohydrazide] is converted by ROS to active chelator HAPI with strong iron binding capacity that efficiently inhibits iron-catalyzed hydroxyl radical generation. Our results confirmed redox activity of oxidation products of catecholamines isoprenaline and epinephrine, that were able to activate BHAPI to HAPI that chelates iron ions inside H9c2 cardiomyoblasts. Both HAPI and BHAPI were able to efficiently protect the cells against intracellular ROS formation, depletion of reduced glutathione and toxicity induced by catecholamines and their oxidation products. Hence, both HAPI and BHAPI have shown considerable potential to protect cardiac cells by both inhibition of deleterious catecholamine oxidation to reactive intermediates and prevention of ROS-mediated cardiotoxicity.
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Affiliation(s)
- Pavlína Hašková
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czechia
| | - Hana Jansová
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czechia
| | - Jan Bureš
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czechia
| | - Miloslav Macháček
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czechia
| | - Anna Jirkovská
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czechia
| | - Katherine J Franz
- Duke University, Department of Chemistry, 124 Science Dr., Durham, NC, 22708, USA
| | - Petra Kovaříková
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czechia
| | - Tomáš Šimůnek
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czechia.
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14
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Jansová H, Bureš J, Macháček M, Hašková P, Jirkovská A, Roh J, Wang Q, Franz KJ, Kovaříková P, Šimůnek T. Characterization of cytoprotective and toxic properties of iron chelator SIH, prochelator BSIH and their degradation products. Toxicology 2016; 350-352:15-24. [PMID: 27046792 DOI: 10.1016/j.tox.2016.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/24/2016] [Accepted: 03/31/2016] [Indexed: 02/01/2023]
Abstract
Free cellular iron catalyzes the formation of toxic hydroxyl radicals and therefore chelation of iron could be a promising therapeutic approach in pathological states associated with oxidative stress. Salicylaldehyde isonicotinoyl hydrazone (SIH) is a strong intracellular iron chelator with well documented potential to protect against oxidative damage both in vitro and in vivo. Due to the short biological half-life of SIH and risk of toxicity due to iron depletion, boronate prochelator BSIH has been designed. BSIH cannot bind iron until it is activated by certain reactive oxygen species to active chelator SIH. The aim of this study was to examine the toxicity and cytoprotective potential of BSIH, SIH, and their decomposition products against hydrogen peroxide-induced injury of H9c2 cardiomyoblast cells. Using HPLC, we observed that salicylaldehyde was the main decomposition products of SIH and BSIH, although a small amount of salicylic acid was also detected. In the case of BSIH, the concentration of formed salicylaldehyde consistently exceeded that of SIH. Isoniazid and salicylic acid were not toxic nor did they provide any antioxidant protective effect in H9c2 cells. In contrast, salicylaldehyde was able to chelate intracellular iron and significantly preserve cellular viability and mitochondrial inner membrane potential induced by hydrogen peroxide. However it was consistently less effective than SIH. The inherent toxicities of salicylaldehyde and SIH were similar. Hence, although SIH - the active chelating agent formed following the BSIH activation - undergoes rapid hydrolysis, its principal decomposition product salicylaldehyde accounts markedly for both cytoprotective and toxic properties.
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Affiliation(s)
- Hana Jansová
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Jan Bureš
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Miloslav Macháček
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Pavlína Hašková
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Anna Jirkovská
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Jaroslav Roh
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Qin Wang
- Department of Chemistry, Duke University, Durham, NC 22708, USA
| | | | - Petra Kovaříková
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic.
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15
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Filipský T, Říha M, Hašková P, Pilařová V, Nováková L, Semecký V, Vávrová J, Holečková M, Palicka V, Šimůnek T, Hrdina R, Mladěnka P. Intravenous rutin in rat exacerbates isoprenaline-induced cardiotoxicity likely due to intracellular oxidative stress. Redox Rep 2016; 22:78-90. [PMID: 27077454 DOI: 10.1080/13510002.2016.1159817] [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] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVES Rutin, quercetin-3-O-rutinoside, a natural flavonol glycoside, has shown various in vitro benefits with potential use treating human diseases, especially cardiovascular system disorders. Antioxidant properties are assumed to underlie the majority of these benefits. Yet rutin pro-oxidant properties have been reported as well. Our research group has recently shown aggravating effects on isoprenaline (ISO)-induced cardiotoxicity in Wistar:Han rats after 24 hours. METHODS This study was designed to examine in more detail the reasons for the negative effects of rutin (11.5 and 46 mg/kg, i.v.) after administration of ISO (100 mg/kg, s.c.) in rats within 2 hours of continuous experiment and in the H9c2 cardiomyoblast-derived cell line. RESULTS Like our previous findings, rutin did not (11.5 or 46 mg/kg, i.v.) reduce the ISO-induced mortality within 2 hours although the lower dose significantly reduced cardiac troponin T (cTnT) and partly improved the histological findings. In contrast, the higher dose increased the mortality in comparison with solvent (1.26% w/v sodium bicarbonate). This was not caused by any specific haemodynamic disturbances. It appears to be associated with oxidative stress as rutin enhanced intracellular reactive oxygen species formation in vitro and had the tendency to increase it in vivo. CONCLUSIONS Rutin, likely due to its pro-oxidative effects, can exacerbate catecholamine cardiotoxicity depending on the dose used.
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Affiliation(s)
- Tomáš Filipský
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Michal Říha
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Pavlína Hašková
- b Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Veronika Pilařová
- c Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Lucie Nováková
- c Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Vladimír Semecký
- d Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Jaroslava Vávrová
- e Faculty of Medicine in Hradec Králové , Charles University in Prague , Šimkova 870, 500 38 Czech Republic.,f University Hospital Hradec Králové , Sokolská 581, 500 05 Czech Republic
| | - Magdaléna Holečková
- e Faculty of Medicine in Hradec Králové , Charles University in Prague , Šimkova 870, 500 38 Czech Republic.,f University Hospital Hradec Králové , Sokolská 581, 500 05 Czech Republic
| | - Vladimir Palicka
- e Faculty of Medicine in Hradec Králové , Charles University in Prague , Šimkova 870, 500 38 Czech Republic.,f University Hospital Hradec Králové , Sokolská 581, 500 05 Czech Republic
| | - Tomáš Šimůnek
- b Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Radomír Hrdina
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Přemysl Mladěnka
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
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16
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Protective Effects of D-Penicillamine on Catecholamine-Induced Myocardial Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:5213532. [PMID: 26788248 PMCID: PMC4691625 DOI: 10.1155/2016/5213532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 09/15/2015] [Indexed: 01/07/2023]
Abstract
Iron and copper release participates in the myocardial injury under ischemic conditions and hence protection might be achieved by iron chelators. Data on copper chelation are, however, sparse. The effect of the clinically used copper chelator D-penicillamine in the catecholamine model of acute myocardial injury was tested in cardiomyoblast cell line H9c2 and in Wistar Han rats. D-Penicillamine had a protective effect against catecholamine-induced injury both in vitro and in vivo. It protected H9c2 cells against the catecholamine-induced viability loss in a dose-dependent manner. In animals, both intravenous D-penicillamine doses of 11 (low) and 44 mg/kg (high) decreased the mortality caused by s.c. isoprenaline (100 mg/kg) from 36% to 14% and 22%, respectively. However, whereas the low D-penicillamine dose decreased the release of cardiac troponin T (specific marker of myocardial injury), the high dose resulted in an increase. Interestingly, the high dose led to a marked elevation in plasma vitamin C. This might be related to potentiation of oxidative stress, as suggested by additional in vitro experiments with D-penicillamine (iron reduction and the Fenton reaction). In conclusion, D-penicillamine has protective potential against catecholamine-induced cardiotoxicity; however the optimal dose selection seems to be crucial for further application.
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17
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Caro AA, Commissariat A, Dunn C, Kim H, García SL, Smith A, Strang H, Stuppy J, Desrochers LP, Goodwin TE. Prooxidant and antioxidant properties of salicylaldehyde isonicotinoyl hydrazone iron chelators in HepG2 cells. Biochim Biophys Acta Gen Subj 2015; 1850:2256-64. [PMID: 26275495 DOI: 10.1016/j.bbagen.2015.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 07/29/2015] [Accepted: 08/09/2015] [Indexed: 01/12/2023]
Abstract
BACKGROUND Salicylaldehyde isonicotinoyl hydrazone (SIH) is an iron chelator of the aroylhydrazone class that displays antioxidant or prooxidant effects in different mammalian cell lines. Because the liver is the major site of iron storage, elucidating the effect of SIH on hepatic oxidative metabolism is critical for designing effective hepatic antioxidant therapies. METHODS Hepatocyte-like HepG2 cells were exposed to SIH or to analogs showing greater stability, such as N'-[1-(2-Hydroxyphenyl)ethyliden]isonicotinoyl hydrazide (HAPI), or devoid of iron chelating properties, such as benzaldehyde isonicotinoyl hydrazone (BIH), and toxicity, oxidative stress and antioxidant (glutathione) metabolism were evaluated. RESULTS Autoxidation of Fe(2+)in vitro increased in the presence of SIH or HAPI (but not BIH), an effect partially blocked by Fe(2+) chelation. Incubation of HepG2 cells with SIH or HAPI (but not BIH) was non-toxic and increased reactive oxygen species (ROS) levels, activated the transcription factor Nrf2, induced the catalytic subunit of γ-glutamate cysteine ligase (Gclc), and increased glutathione concentration. Fe(2+) chelation decreased ROS and inhibited Nrf2 activation, and Nrf2 knock-down inhibited the induction of Gclc in the presence of HAPI. Inhibition of γ-glutamate cysteine ligase enzymatic activity inhibited the increase in glutathione caused by HAPI, and increased oxidative stress. CONCLUSIONS SIH iron chelators display both prooxidant (increasing the autoxidation rate of Fe(2+)) and antioxidant (activating Nrf2 signaling) effects. GENERAL SIGNIFICANCE Activation by SIH iron chelators of a hormetic antioxidant response contributes to their antioxidant properties and modulates the anti- and pro-oxidant balance.
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Affiliation(s)
- Andres A Caro
- Chemistry Department, Hendrix College, Conway, AR 72032, USA.
| | | | - Caroline Dunn
- Chemistry Department, Hendrix College, Conway, AR 72032, USA
| | - Hyunjoo Kim
- Chemistry Department, Hendrix College, Conway, AR 72032, USA
| | | | - Allen Smith
- Chemistry Department, Hendrix College, Conway, AR 72032, USA
| | - Harrison Strang
- Chemistry Department, Hendrix College, Conway, AR 72032, USA
| | - Jake Stuppy
- Chemistry Department, Hendrix College, Conway, AR 72032, USA
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18
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Broeyer FJF, Osanto S, Suzuki J, de Jongh F, van Slooten H, Tanis BC, Bruning T, Bax JJ, Ritsema van Eck HJ, de Kam ML, Cohen AF, Mituzhima Y, Burggraaf J. Evaluation of lecithinized human recombinant super oxide dismutase as cardioprotectant in anthracycline-treated breast cancer patients. Br J Clin Pharmacol 2015; 78:950-60. [PMID: 24844787 DOI: 10.1111/bcp.12429] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 05/15/2014] [Indexed: 12/19/2022] Open
Abstract
AIM Anthracycline-induced cardiotoxicity is (partly) mediated by free radical overload. A randomized study was performed in breast cancer patients to investigate whether free radical scavenger super oxide dismutase (SOD) protects against anthracycline-induced cardiotoxicity as measured by changes in echo, electrocardiography and an array of biomarkers. METHOD AND RESULTS Eighty female, chemotherapy-naïve breast cancer patients (median age 49, range 24-67 years) scheduled for four or five courses of adjuvant 3 weekly doxorubicin plus cyclophosphamide (AC) chemotherapy, were randomly assigned to receive 80 mg PC-SOD (human recombinant SOD bound to lecithin) or placebo, administered intravenously (i.v.) immediately prior to each AC course. The primary end point was protection against cardiac damage evaluated using echocardiography, QT assessments and a set of biochemical markers for myocardial function, oxidative stress and inflammation. Assessments were performed before and during each course of chemotherapy, and at 1, 4 and 9 months after completion of the chemotherapy regimen. In all patients cardiac effects such as increases in NT-proBNP concentration and prolongation of the QTc interval were noticed. There were no differences between the PC-SOD and placebo-treated patients in systolic or diastolic cardiac function or for any other of the biomarkers used to assess the cardiac effects of anthracyclines. CONCLUSION PC-SOD at a dose of 80 mg i.v. is not cardioprotective in patients with breast carcinoma treated with anthracyclines.
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Jirkovská-Vávrová A, Roh J, Lenčová-Popelová O, Jirkovský E, Hrušková K, Potůčková-Macková E, Jansová H, Hašková P, Martinková P, Eisner T, Kratochvíl M, Šůs J, Macháček M, Vostatková-Tichotová L, Geršl V, Kalinowski DS, Muller MT, Richardson DR, Vávrová K, Štěrba M, Šimůnek T. Synthesis and analysis of novel analogues of dexrazoxane and its open-ring hydrolysis product for protection against anthracycline cardiotoxicity in vitro and in vivo. Toxicol Res (Camb) 2015. [DOI: 10.1039/c5tx00048c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Topoisomerase II beta, rather than (or along with) iron chelation, may be a promising target for cardioprotection.
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20
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Bureš J, Jansová H, Stariat J, Filipský T, Mladěnka P, Šimůnek T, Kučera R, Klimeš J, Wang Q, Franz KJ, Kovaříková P. LC-UV/MS methods for the analysis of prochelator-boronyl salicylaldehyde isonicotinoyl hydrazone (BSIH) and its active chelator salicylaldehyde isonicotinoyl hydrazone (SIH). J Pharm Biomed Anal 2014; 105:55-63. [PMID: 25527982 DOI: 10.1016/j.jpba.2014.11.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 11/20/2014] [Accepted: 11/25/2014] [Indexed: 01/06/2023]
Abstract
Salicylaldehyde isonicotinoyl hydrazone (SIH) is an intracellular iron chelator with well documented potential to protect against oxidative injury both in vitro and in vivo. However, it suffers from short biological half-life caused by fast hydrolysis of the hydrazone bond. Recently, a concept of boronate prochelators has been introduced as a strategy that might overcome these limitations. This study presents two complementary analytical methods for detecting the prochelator-boronyl salicylaldehyde isonicotinoyl hydrazone-BSIH along with its active metal-binding chelator SIH in different solution matrices and concentration ranges. An LC-UV method for determination of BSIH and SIH in buffer and cell culture medium was validated over concentrations of 7-115 and 4-115 μM, respectively, and applied to BSIH activation experiments in vitro. An LC-MS assay was validated for quantification of BSIH and SIH in plasma over the concentration range of 0.06-23 and 0.24-23 μM, respectively, and applied to stability studies in plasma in vitro as well as analysis of plasma taken after i.v. administration of BSIH to rats. A Zorbax-RP bonus column and mobile phases containing either phosphate buffer with EDTA or ammonium formate and methanol/acetonitrile mixture provided suitable conditions for the LC-UV and LC-MS analysis, respectively. Samples were diluted or precipitated with methanol prior to analysis. These separative analytical techniques establish the first validated protocols to investigate BSIH activation by hydrogen peroxide in multiple matrices, directly compare the stabilities of the prochelator and its chelator in plasma, and provide the first basic pharmacokinetic data of this prochelator. Experiments reveal that BSIH is stable in all media tested and is partially converted to SIH by H2O2. The observed integrity of BSIH in plasma samples from the in vivo study suggests that the concept of prochelation might be a promising strategy for further development of aroylhydrazone cytoprotective agents.
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Affiliation(s)
- Jan Bureš
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Hana Jansová
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Ján Stariat
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Tomáš Filipský
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Přemysl Mladěnka
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Radim Kučera
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jiří Klimeš
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Qin Wang
- Duke University, Department of Chemistry, Durham, NC 22708, USA
| | | | - Petra Kovaříková
- Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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21
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Structure-activity relationships of novel salicylaldehyde isonicotinoyl hydrazone (SIH) analogs: iron chelation, anti-oxidant and cytotoxic properties. PLoS One 2014; 9:e112059. [PMID: 25393531 PMCID: PMC4231169 DOI: 10.1371/journal.pone.0112059] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 10/11/2014] [Indexed: 01/08/2023] Open
Abstract
Salicylaldehyde isonicotinoyl hydrazone (SIH) is a lipophilic, tridentate iron chelator with marked anti-oxidant and modest cytotoxic activity against neoplastic cells. However, it has poor stability in an aqueous environment due to the rapid hydrolysis of its hydrazone bond. In this study, we synthesized a series of new SIH analogs (based on previously described aromatic ketones with improved hydrolytic stability). Their structure-activity relationships were assessed with respect to their stability in plasma, iron chelation efficacy, redox effects and cytotoxic activity against MCF-7 breast adenocarcinoma cells. Furthermore, studies assessed the cytotoxicity of these chelators and their ability to afford protection against hydrogen peroxide-induced oxidative injury in H9c2 cardiomyoblasts. The ligands with a reduced hydrazone bond, or the presence of bulky alkyl substituents near the hydrazone bond, showed severely limited biological activity. The introduction of a bromine substituent increased ligand-induced cytotoxicity to both cancer cells and H9c2 cardiomyoblasts. A similar effect was observed when the phenolic ring was exchanged with pyridine (i.e., changing the ligating site from O, N, O to N, N, O), which led to pro-oxidative effects. In contrast, compounds with long, flexible alkyl chains adjacent to the hydrazone bond exhibited specific cytotoxic effects against MCF-7 breast adenocarcinoma cells and low toxicity against H9c2 cardiomyoblasts. Hence, this study highlights important structure-activity relationships and provides insight into the further development of aroylhydrazone iron chelators with more potent and selective anti-neoplastic effects.
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22
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Nair RS, Kuriakose M, Somasundaram V, Shenoi V, Kurup MRP, Srinivas P. The molecular response of vanadium complexes of nicotinoyl hydrazone in cervical cancers--a possible interference with HPV oncogenic markers. Life Sci 2014; 116:90-7. [PMID: 25258113 DOI: 10.1016/j.lfs.2014.09.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 09/03/2014] [Accepted: 09/10/2014] [Indexed: 10/24/2022]
Abstract
AIMS Hydrazones belonging to the class of NNO donor Schiff bases are reported to have extensive anti-viral activity and anti-neoplastic activity against certain cancers such as colon cancer, hepatocellular carcinoma and testicular cancer. Here we aim to study the possible effects of two novel nicotinoyl hydrazones on Human papillomavirus (HPV) infected cervical cancers. MAIN METHODS The effect of vanadium complexes on the proliferation of SiHa and HeLa cells was analyzed using MTT assay. The apoptotic potentials of the complexes were assessed by their ability to induce DNA condensation as well as loss of mitochondrial membrane potential. Caspase activity assay and DNA content analysis were performed to understand the mechanism of apoptotic induction. RT-PCR analysis of cell cycle genes, GADD45, p53, p21 and HPV specific oncogenes, E6 and E7 were used to elucidate the molecular mechanism of the complexes. KEY FINDINGS OVK 49 exhibits an increased apoptosis inducing potential when compared to OVK 89 in HPV16 positive SiHa cells compared to HPV18 positive HeLa. A down regulation for E6 and E7 mRNA transcripts along with the induction of p53 protein in SiHa cells were observed when treated with OVK 49 indicating that OVK 49 might have promising anti-cancer activity against HPV16 positive cervical cancers. SIGNIFICANCE This is the first study demonstrating that vanadium complexes could induce a p53 dependent apoptotic mechanism in high risk HPV16-positive cervical cancers.
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Affiliation(s)
- Rakesh S Nair
- Cancer Research Program 5, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695 014 Kerala, India
| | - Mini Kuriakose
- Department of Applied Chemistry, Cochin University of Science & Technology, Kochi 682 022 Kerala, India
| | - Veena Somasundaram
- Cancer Research Program 5, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695 014 Kerala, India
| | - Vinesh Shenoi
- Department of Biological Sciences, Indian Institute of Science Education & Research Mohali (IISERM), Punjab, India
| | - M R Prathapachandra Kurup
- Department of Applied Chemistry, Cochin University of Science & Technology, Kochi 682 022 Kerala, India.
| | - Priya Srinivas
- Cancer Research Program 5, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695 014 Kerala, India.
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23
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Jansová H, Macháček M, Wang Q, Hašková P, Jirkovská A, Potůčková E, Kielar F, Franz KJ, Simůnek T. Comparison of various iron chelators and prochelators as protective agents against cardiomyocyte oxidative injury. Free Radic Biol Med 2014; 74:210-21. [PMID: 24992833 PMCID: PMC4243170 DOI: 10.1016/j.freeradbiomed.2014.06.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 06/17/2014] [Accepted: 06/24/2014] [Indexed: 01/28/2023]
Abstract
Oxidative stress is a common denominator of numerous cardiovascular disorders. Free cellular iron catalyzes the formation of highly toxic hydroxyl radicals, and iron chelation may thus be an effective therapeutic approach. However, using classical iron chelators in diseases without iron overload poses risks that necessitate more advanced approaches, such as prochelators that are activated to chelate iron only under disease-specific oxidative stress conditions. In this study, three cell-membrane-permeable iron chelators (clinically used deferasirox and experimental SIH and HAPI) and five boronate-masked prochelator analogs were evaluated for their ability to protect cardiac cells against oxidative injury induced by hydrogen peroxide. Whereas the deferasirox-derived agents TIP and TRA-IMM displayed negligible protection and even considerable toxicity, the aroylhydrazone prochelators BHAPI and BSIH-PD provided significant cytoprotection and displayed lower toxicity after prolonged cellular exposure compared to their parent chelators HAPI and SIH, respectively. Overall, the most favorable properties in terms of protective efficiency and low inherent cytotoxicity were observed with the aroylhydrazone prochelator BSIH. BSIH efficiently protected both H9c2 rat cardiomyoblast-derived cells and isolated primary rat cardiomyocytes against hydrogen peroxide-induced mitochondrial and lysosomal dysregulation and cell death. At the same time, BSIH was nontoxic at concentrations up to its solubility limit (600 μM) and in 72-h incubation. Hence, BSIH merits further investigation for prevention and/or treatment of cardiovascular disorders associated with a known (or presumed) component of oxidative stress.
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Affiliation(s)
- Hana Jansová
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Miloslav Macháček
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Qin Wang
- Department of Chemistry, Duke University, Durham, NC 22708, USA
| | - Pavlína Hašková
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Anna Jirkovská
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Eliška Potůčková
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
| | - Filip Kielar
- Department of Chemistry, Duke University, Durham, NC 22708, USA
| | | | - Tomáš Simůnek
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic.
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24
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Potuckova E, Jansova H, Machacek M, Vavrova A, Haskova P, Tichotova L, Richardson V, Kalinowski DS, Richardson DR, Simunek T. Quantitative analysis of the anti-proliferative activity of combinations of selected iron-chelating agents and clinically used anti-neoplastic drugs. PLoS One 2014; 9:e88754. [PMID: 24586383 PMCID: PMC3930662 DOI: 10.1371/journal.pone.0088754] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 01/11/2014] [Indexed: 12/11/2022] Open
Abstract
Recent studies have demonstrated that several chelators possess marked potential as potent anti-neoplastic drugs and as agents that can ameliorate some of the adverse effects associated with standard chemotherapy. Anti-cancer treatment employs combinations of several drugs that have different mechanisms of action. However, data regarding the potential interactions between iron chelators and established chemotherapeutics are lacking. Using estrogen receptor-positive MCF-7 breast cancer cells, we explored the combined anti-proliferative potential of four iron chelators, namely: desferrioxamine (DFO), salicylaldehyde isonicotinoyl hydrazone (SIH), (E)-N'-[1-(2-hydroxy-5-nitrophenyl)ethyliden] isonicotinoyl hydrazone (NHAPI), and di-2-pyridylketone 4,4-dimethyl-3-thiosemicarbazone (Dp44mT), plus six selected anti-neoplastic drugs. These six agents are used for breast cancer treatment and include: paclitaxel, 5-fluorouracil, doxorubicin, methotrexate, tamoxifen and 4-hydroperoxycyclophosphamide (an active metabolite of cyclophosphamide). Our quantitative chelator-drug analyses were designed according to the Chou-Talalay method for drug combination assessment. All combinations of these agents yielded concentration-dependent, anti-proliferative effects. The hydrophilic siderophore, DFO, imposed antagonism when used in combination with all six anti-tumor agents and this antagonistic effect increased with increasing dose. Conversely, synergistic interactions were observed with combinations of the lipophilic chelators, NHAPI or Dp44mT, with doxorubicin and also the combinations of SIH, NHAPI or Dp44mT with tamoxifen. The combination of Dp44mT with anti-neoplastic agents was further enhanced following formation of its redox-active iron and especially copper complexes. The most potent combinations of Dp44mT and NHAPI with tamoxifen were confirmed as synergistic using another estrogen receptor-expressing breast cancer cell line, T47D, but not estrogen receptor-negative MDA-MB-231 cells. Furthermore, the synergy of NHAPI and tamoxifen was confirmed using MCF-7 cells by electrical impedance data, a mitochondrial inner membrane potential assay and cell cycle analyses. This is the first systematic investigation to quantitatively assess interactions between Fe chelators and standard chemotherapies using breast cancer cells. These studies are vital for their future clinical development.
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Affiliation(s)
- Eliska Potuckova
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Prague, Czech Republic
| | - Hana Jansova
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Prague, Czech Republic
| | - Miloslav Machacek
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Prague, Czech Republic
| | - Anna Vavrova
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Prague, Czech Republic
| | - Pavlina Haskova
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Prague, Czech Republic
| | - Lucie Tichotova
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Prague, Czech Republic
| | - Vera Richardson
- Molecular Pharmacology and Pathology Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney, Australia
| | - Danuta S. Kalinowski
- Molecular Pharmacology and Pathology Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney, Australia
| | - Des R. Richardson
- Molecular Pharmacology and Pathology Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney, Australia
- * E-mail: (TS); (DRR)
| | - Tomas Simunek
- Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Prague, Czech Republic
- * E-mail: (TS); (DRR)
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25
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Štěrba M, Popelová O, Vávrová A, Jirkovský E, Kovaříková P, Geršl V, Šimůnek T. Oxidative stress, redox signaling, and metal chelation in anthracycline cardiotoxicity and pharmacological cardioprotection. Antioxid Redox Signal 2013; 18:899-929. [PMID: 22794198 PMCID: PMC3557437 DOI: 10.1089/ars.2012.4795] [Citation(s) in RCA: 234] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 07/15/2012] [Indexed: 12/22/2022]
Abstract
SIGNIFICANCE Anthracyclines (doxorubicin, daunorubicin, or epirubicin) rank among the most effective anticancer drugs, but their clinical usefulness is hampered by the risk of cardiotoxicity. The most feared are the chronic forms of cardiotoxicity, characterized by irreversible cardiac damage and congestive heart failure. Although the pathogenesis of anthracycline cardiotoxicity seems to be complex, the pivotal role has been traditionally attributed to the iron-mediated formation of reactive oxygen species (ROS). In clinics, the bisdioxopiperazine agent dexrazoxane (ICRF-187) reduces the risk of anthracycline cardiotoxicity without a significant effect on response to chemotherapy. The prevailing concept describes dexrazoxane as a prodrug undergoing bioactivation to an iron-chelating agent ADR-925, which may inhibit anthracycline-induced ROS formation and oxidative damage to cardiomyocytes. RECENT ADVANCES A considerable body of evidence points to mitochondria as the key targets for anthracycline cardiotoxicity, and therefore it could be also crucial for effective cardioprotection. Numerous antioxidants and several iron chelators have been tested in vitro and in vivo with variable outcomes. None of these compounds have matched or even surpassed the effectiveness of dexrazoxane in chronic anthracycline cardiotoxicity settings, despite being stronger chelators and/or antioxidants. CRITICAL ISSUES The interpretation of many findings is complicated by the heterogeneity of experimental models and frequent employment of acute high-dose treatments with limited translatability to clinical practice. FUTURE DIRECTIONS Dexrazoxane may be the key to the enigma of anthracycline cardiotoxicity, and therefore it warrants further investigation, including the search for alternative/complementary modes of cardioprotective action beyond simple iron chelation.
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Affiliation(s)
- Martin Štěrba
- Department of Pharmacology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Hradec Králové, Czech Republic
| | - Olga Popelová
- Department of Pharmacology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Hradec Králové, Czech Republic
| | - Anna Vávrová
- Department of Biochemical Sciences, Charles University in Prague, Hradec Králové, Czech Republic
| | - Eduard Jirkovský
- Department of Pharmacology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Hradec Králové, Czech Republic
| | - Petra Kovaříková
- Department of Pharmaceutical Chemistry and Drug Control, Faculty of Pharmacy in Hradec Králové, Charles University in Prague, Hradec Králové, Czech Republic
| | - Vladimír Geršl
- Department of Pharmacology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Hradec Králové, Czech Republic
| | - Tomáš Šimůnek
- Department of Biochemical Sciences, Charles University in Prague, Hradec Králové, Czech Republic
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Kovarikova P, Pasakova-Vrbatova I, Vavrova A, Stariat J, Klimes J, Simunek T. Development of LC–MS/MS method for the simultaneous analysis of the cardioprotective drug dexrazoxane and its metabolite ADR-925 in isolated cardiomyocytes and cell culture medium. J Pharm Biomed Anal 2013; 76:243-51. [DOI: 10.1016/j.jpba.2012.12.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 12/08/2012] [Accepted: 12/10/2012] [Indexed: 11/28/2022]
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Iron chelation afforded cardioprotection against H2O2-induced H9C2 cell injury: Application of novel 3-hydroxy pyridine-4-one derivatives. Int J Cardiol 2012; 162:60-3. [DOI: 10.1016/j.ijcard.2011.11.067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 11/27/2011] [Indexed: 11/24/2022]
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28
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Macková E, Hrušková K, Bendová P, Vávrová A, Jansová H, Hašková P, Kovaříková P, Vávrová K, Šimůnek T. Methyl and ethyl ketone analogs of salicylaldehyde isonicotinoyl hydrazone: Novel iron chelators with selective antiproliferative action. Chem Biol Interact 2012; 197:69-79. [DOI: 10.1016/j.cbi.2012.03.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Revised: 03/13/2012] [Accepted: 03/30/2012] [Indexed: 01/06/2023]
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29
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Hašková P, Koubková L, Vávrová A, Macková E, Hrušková K, Kovaříková P, Vávrová K, Simůnek T. Comparison of various iron chelators used in clinical practice as protecting agents against catecholamine-induced oxidative injury and cardiotoxicity. Toxicology 2011; 289:122-31. [PMID: 21864640 DOI: 10.1016/j.tox.2011.08.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Revised: 08/02/2011] [Accepted: 08/04/2011] [Indexed: 01/19/2023]
Abstract
Catecholamines are stress hormones and sympathetic neurotransmitters essential for control of cardiac function and metabolism. However, pathologically increased catecholamine levels may be cardiotoxic by mechanism that includes iron-catalyzed formation of reactive oxygen species. In this study, five iron chelators used in clinical practice were examined for their potential to protect cardiomyoblast-derived cell line H9c2 from the oxidative stress and toxicity induced by catecholamines epinephrine and isoprenaline and their oxidation products. Hydroxamate iron chelator desferrioxamine (DFO) significantly reduced oxidation of catecholamines to more toxic products and abolished redox activity of the catecholamine-iron complex at pH 7.4. However, due to its hydrophilicity and large molecule, DFO was able to protects cells only at very high and clinically unachievable concentrations. Two newer chelators, deferiprone (L1) and deferasirox (ICL670A), showed much better protective potential and were effective at one or two orders of magnitude lower concentrations as compared to DFO that were within their clinically relevant plasma levels. Ethylenediaminetetraacetic acid (EDTA), dexrazoxane (ICRF-187, clinically approved cardioprotective agent against anthracycline-induced cardiotoxicity) as well as selected beta adrenoreceptor antagonists and calcium channel blockers exerted no effect. Hence, results of the present study indicate that small, lipophilic and iron-specific chelators L1 and ICL670A can provide significant protection against the oxidative stress and cardiomyocyte damage exerted by catecholamines and/or their reactive oxidation intermediates. This potential new application of the clinically approved drugs L1 and ICL670A warrants further investigation, preferably using more complex in vivo animal models.
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Affiliation(s)
- Pavlína Hašková
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Czech Republic
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Heli H, Mirtorabi S, Karimian K. Advances in iron chelation: an update. Expert Opin Ther Pat 2011; 21:819-56. [PMID: 21449664 DOI: 10.1517/13543776.2011.569493] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Oxidative stress (caused by excess iron) can result in tissue damage, organ failure and finally death, unless treated by iron chelators. The causative factor in the etiology of a variety of disease states is the presence of iron-generated reactive oxygen species (ROS), which can result in cell damage or which can affect the signaling pathways involved in cell necrosis-apoptosis or organ fibrosis, cancer, neurodegeneration and cardiovascular, hepatic or renal dysfunctions. Iron chelators can reduce oxidative stress by the removal of iron from target tissues. Equally as important, removal of iron from the active site of enzymes that play key roles in various diseases can be of considerable benefit to the patients. AREAS COVERED This review focuses on iron chelators used as therapeutic agents. The importance of iron in oxidative damage is discussed, along with the three clinically approved iron chelators. EXPERT OPINION A number of iron chelators are used as approved therapeutic agents in the treatment of thalassemia major, asthma, fungal infections and cancer. However, as our knowledge about the biochemistry of iron and its role in etiologies of seemingly unrelated diseases increases, new applications of the approved iron chelators, as well as the development of new iron chelators, present challenging opportunities in the areas of drug discovery and development.
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Affiliation(s)
- Hossein Heli
- Islamic Azad University, Science and Research Branch, Department of Chemistry, Fars, 7348113111, Iran
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Hašková P, Kovaříková P, Koubková L, Vávrová A, Macková E, Simůnek T. Iron chelation with salicylaldehyde isonicotinoyl hydrazone protects against catecholamine autoxidation and cardiotoxicity. Free Radic Biol Med 2011; 50:537-49. [PMID: 21147217 DOI: 10.1016/j.freeradbiomed.2010.12.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Revised: 11/17/2010] [Accepted: 12/03/2010] [Indexed: 12/20/2022]
Abstract
Elevated catecholamine levels are known to induce damage of the cardiac tissue. This catecholamine cardiotoxicity may stem from their ability to undergo oxidative conversion to aminochromes and concomitant production of reactive oxygen species (ROS), which damage cardiomyocytes via the iron-catalyzed Fenton-type reaction. This suggests the possibility of cardioprotection by iron chelation. Our in vitro experiments have demonstrated a spontaneous decrease in the concentration of the catecholamines epinephrine and isoprenaline during their 24-h preincubation in buffered solution as well as their gradual conversion to oxidation products. These changes were significantly augmented by addition of iron ions and reduced by the iron-chelating agent salicylaldehyde isonicotinoyl hydrazone (SIH). Oxidized catecholamines were shown to form complexes with iron that had significant redox activity, which could be suppressed by SIH. Experiments using the H9c2 cardiomyoblast cell line revealed higher cytotoxicity of oxidized catecholamines than of the parent compounds, apparently through the induction of caspase-independent cell death, whereas co-incubation of cells with SIH was able to significantly preserve cell viability. A significant increase in intracellular ROS formation was observed after the incubation of cells with catecholamine oxidation products; this could be significantly reduced by SIH. In contrast, parent catecholamines did not increase, but rather decreased, cellular ROS production. Hence, our results demonstrate an important role for redox-active iron in catecholamine autoxidation and subsequent toxicity. The iron chelator SIH has shown considerable potential to protect cardiac cells by both inhibition of deleterious catecholamine oxidation to reactive intermediates and prevention of ROS-mediated cardiotoxicity.
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Affiliation(s)
- Pavlína Hašková
- Faculty of Pharmacy, Charles University in Prague, 500 05 Hradec Králové, Czech Republic
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Kovacevic Z, Yu Y, Richardson DR. Chelators to the rescue: different horses for different courses! Chem Res Toxicol 2011; 24:279-82. [PMID: 21214214 DOI: 10.1021/tx100435c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Hruskova K, Kovarikova P, Bendova P, Haskova P, Mackova E, Stariat J, Vavrova A, Vavrova K, Simunek T. Synthesis and initial in vitro evaluations of novel antioxidant aroylhydrazone iron chelators with increased stability against plasma hydrolysis. Chem Res Toxicol 2011; 24:290-302. [PMID: 21214215 DOI: 10.1021/tx100359t] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Oxidative stress is known to contribute to a number of cardiovascular pathologies. Free intracellular iron ions participate in the Fenton reaction and therefore substantially contribute to the formation of highly toxic hydroxyl radicals and cellular injury. Earlier work on the intracellular iron chelator salicylaldehyde isonicotinoyl hydrazone (SIH) has demonstrated its considerable promise as an agent to protect the heart against oxidative injury both in vitro and in vivo. However, the major limitation of SIH is represented by its labile hydrazone bond that makes it prone to plasma hydrolysis. Hence, in order to improve the hydrazone bond stability, nine compounds were prepared by a substitution of salicylaldehyde by the respective methyl- and ethylketone with various electron donors or acceptors in the phenyl ring. All the synthesized aroylhydrazones displayed significant iron-chelating activities and eight chelators showed significantly higher stability in rabbit plasma than SIH. Furthermore, some of these chelators were observed to possess higher cytoprotective activities against oxidative injury and/or lower toxicity as compared to SIH. The results of the present study therefore indicate the possible applicability of several of these novel agents in the prevention and/or treatment of cardiovascular disorders with a known (or presumed) role of oxidative stress. In particular, the methylketone HAPI and nitro group-containing NHAPI merit further in vivo investigations.
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Affiliation(s)
- Katerina Hruskova
- Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Prague, Czech Republic
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Vávrová A, Popelová O, Stěrba M, Jirkovský E, Hašková P, Mertlíková-Kaiserová H, Geršl V, Simůnek T. In vivo and in vitro assessment of the role of glutathione antioxidant system in anthracycline-induced cardiotoxicity. Arch Toxicol 2010; 85:525-35. [PMID: 21046361 DOI: 10.1007/s00204-010-0615-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2010] [Accepted: 10/14/2010] [Indexed: 10/18/2022]
Abstract
The clinical usefulness of anthracycline antineoplastic drugs is limited by their cardiotoxicity. Its mechanisms have not been fully understood, although the induction of oxidative stress is widely believed to play the principal role. Glutathione is the dominant cellular antioxidant, while glutathione peroxidase (GPx) together with glutathione reductase (GR) constitutes the major enzymatic system protecting the cardiac cells from oxidative damage. Therefore, this study aimed to assess their roles in anthracycline cardiotoxicity. Ten-week intravenous administration of daunorubicin (DAU, 3 mg/kg weekly) to rabbits induced heart failure, which was evident from decreased left ventricular ejection fraction and release of cardiac troponins to circulation. However, no significant changes in either total or oxidized glutathione contents or GR activity were detected in left ventricular tissue of DAU-treated rabbits when compared with control animals. GPx activity in the cardiac tissue significantly increased. In H9c2 rat cardiac cells, 24-h DAU exposure (0.1-10 μM) induced significant dose-dependent toxicity. Cellular content of reduced glutathione was insignificantly decreased, oxidized glutathione and GR activity were unaffected, and GPx activity was significantly increased. Neither buthionine sulfoximine (BSO, glutathione biosynthesis inhibitor) nor 2-oxo-4-thiazolidine-carboxylic acid (OTC, glutathione biosynthetic precursor) had significant effects on DAU cytotoxicity. This contrasted with model oxidative injury induced by hydrogen peroxide, which cytotoxicity was increased by BSO and decreased by OTC. In conclusion, our results suggest that the dysfunction of glutathione antioxidant system does not play a causative role in anthracycline cardiotoxicity.
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Affiliation(s)
- Anna Vávrová
- Department of Biochemical Sciences, Charles University in Prague, Heyrovského, Hradec Králové, Czech Republic
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Cascales A, Sánchez-Vega B, Navarro N, Pastor-Quirante F, Corral J, Vicente V, de la Peña FA. Clinical and genetic determinants of anthracycline-induced cardiac iron accumulation. Int J Cardiol 2010; 154:282-6. [PMID: 20974500 DOI: 10.1016/j.ijcard.2010.09.046] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 09/23/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND The involvement of iron in anthracycline cardiotoxicity is supported by extensive experimental data, and by the preventive efficacy of dexrazoxane, an iron chelator. However, no clinical evidence of anthracycline-induced cardiac iron accumulation is available and the influence of previous iron overload or of genetic factors in human-induced heart disease is largely unknown. Our aim was to test the hypothesis that anthracyclines increase iron heart concentration and that HFE genotype modulates this iron deposit. METHODS We retrospectively evaluated cardiac events, cardiac iron and HFE genotype in 97 consecutive necropsies from patients with solid and hematological neoplasms. Heart and liver iron concentration was determined by atomic absorption spectroscopy. HFE gene mutations (C282Y and H63D) linked to hereditary hemochromatosis were analyzed by Fluorescence Resonance Energy Transfer (FRET) genotyping. RESULTS Heart iron concentration was increased in cases treated with a cumulative doxorubicin dose greater than 200mg/m(2) (490 vs 240 μg/g; p=0.01), independently of liver iron load or transfusion history. HFE mutated haplotypes 282C/63D (p=0.049) and 282Y/63H (p=0.027) were associated to higher cardiac iron deposits. The haplotype C282Y-Y/H63D-H interacted with anthracyclines for increasing cardiac iron load. In a multivariate linear regression analysis both HFE genotypes and anthracyclines contributed to heart iron concentration (R(2)=0.284). CONCLUSIONS Our data support the occurrence of an HFE-modulated heart iron accumulation in individuals treated with anthracyclines, independently of systemic iron load. If prospectively confirmed, iron-related parameters might be useful as predictive factors for anthracycline cardiotoxicity.
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Affiliation(s)
- Almudena Cascales
- Centro Regional de Hemodonación. Ronda de Garay, s/n. 30003, Murcia, Spain
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Cambos M, Scorza T. Robust erythrophagocytosis leads to macrophage apoptosis via a hemin-mediated redox imbalance: role in hemolytic disorders. J Leukoc Biol 2010; 89:159-71. [PMID: 20884648 DOI: 10.1189/jlb.0510249] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
MP from the RES are responsible for the clearance of senescent RBC. Although the frequency of senescent RBC is low under steady-state conditions, it increases dramatically during hemolytic disorders, resulting in enhanced erythrophagocytosis. As erythrophagocytosis has been involved in MP dysfunction and as certain hemolytic disorders associate to MP apoptosis, a possible link between erythrophagocytosis and the viability of phagocytes was investigated herein. To mimic hemolytic disorders, two distinct in vitro models, artificially oxidized RBC and DSRBC, were chosen to study the erythrophagocytosis impact on the viability of J774A.1 MP. Although CRBC were weakly phagocytosed and did not affect MP viability significantly, erythrophagocytosis of oxidized RBC and DSRBC was robust and resulted in a sharp decrease of MP viability via apoptosis. Under these conditions, Hb-derived HE was shown to be involved in the induction of apoptosis. Moreover, oxidized RBC, DSRBC, and HE generated ROS species, which were responsible for the apoptosis of MP. Furthermore, HO-1, strongly induced in response to treatment with oxidized RBC, DSRBC, or HE, was shown to protect MP partially against apoptosis, suggesting that robust erythro-phagocytosis may exceed the detoxification capabilities of MP. Taken together, these results suggest that enhanced erythrophagocytosis associated to hemolytic disorders leads to MP apoptosis in vitro and may have critical implications for the control of malaria infection and for the exacerbated susceptibility to bacterial infections during hemolytic disorders.
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Affiliation(s)
- Mathieu Cambos
- Department of Biological Sciences, Université du Québec à Montreal, Montreal, Quebec, Canada
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Bendova P, Mackova E, Haskova P, Vavrova A, Jirkovsky E, Sterba M, Popelova O, Kalinowski DS, Kovarikova P, Vavrova K, Richardson DR, Simunek T. Comparison of Clinically Used and Experimental Iron Chelators for Protection against Oxidative Stress-Induced Cellular Injury. Chem Res Toxicol 2010; 23:1105-14. [DOI: 10.1021/tx100125t] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Petra Bendova
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Eliska Mackova
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Pavlina Haskova
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Anna Vavrova
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Eduard Jirkovsky
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Martin Sterba
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Olga Popelova
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Danuta S. Kalinowski
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Petra Kovarikova
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Katerina Vavrova
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Des R. Richardson
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
| | - Tomas Simunek
- Faculty of Pharmacy in Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic, and Iron Metabolism and Chelation Program, Bosch Institute and Department of Pathology, University of Sydney, Sydney 2006, Australia
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Dexrazoxane-afforded protection against chronic anthracycline cardiotoxicity in vivo: effective rescue of cardiomyocytes from apoptotic cell death. Br J Cancer 2009; 101:792-802. [PMID: 19623174 PMCID: PMC2736842 DOI: 10.1038/sj.bjc.6605192] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Dexrazoxane (DEX, ICRF-187) is the only clinically approved cardioprotectant against anthracycline cardiotoxicity. It has been traditionally postulated to undergo hydrolysis to iron-chelating agent ADR-925 and to prevent anthracycline-induced oxidative stress, progressive cardiomyocyte degeneration and subsequent non-programmed cell death. However, the additional capability of DEX to protect cardiomyocytes from apoptosis has remained unsubstantiated under clinically relevant in vivo conditions. METHODS Chronic anthracycline cardiotoxicity was induced in rabbits by repeated daunorubicin (DAU) administrations (3 mg kg(-1) weekly for 10 weeks). Cardiomyocyte apoptosis was evaluated using TUNEL (terminal deoxynucleotidyl transferase biotin-dUTP nick end labelling) assay and activities of caspases 3/7, 8, 9 and 12. Lipoperoxidation was assayed using HPLC determination of myocardial malondialdehyde and 4-hydroxynonenal immunodetection. RESULTS Dexrazoxane (60 mg kg(-1)) co-treatment was capable of overcoming DAU-induced mortality, left ventricular dysfunction, profound structural damage of the myocardium and release of cardiac troponin T and I to circulation. Moreover, for the first time, it has been shown that DEX affords significant and nearly complete cardioprotection against anthracycline-induced apoptosis in vivo and effectively suppresses the complex apoptotic signalling triggered by DAU. In individual animals, the severity of apoptotic parameters significantly correlated with cardiac function. However, this effective cardioprotection occurred without a significant decrease in anthracycline-induced lipoperoxidation. CONCLUSION This study identifies inhibition of apoptosis as an important target for effective cardioprotection against chronic anthracycline cardiotoxicity and suggests that lipoperoxidation-independent mechanisms are involved in the cardioprotective action of DEX.
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Simůnek T, Stérba M, Popelová O, Adamcová M, Hrdina R, Gersl V. Anthracycline-induced cardiotoxicity: overview of studies examining the roles of oxidative stress and free cellular iron. Pharmacol Rep 2009; 61:154-71. [PMID: 19307704 DOI: 10.1016/s1734-1140(09)70018-0] [Citation(s) in RCA: 542] [Impact Index Per Article: 36.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2008] [Revised: 02/02/2009] [Indexed: 12/23/2022]
Abstract
The risk of cardiotoxicity is the most serious drawback to the clinical usefulness of anthracycline antineoplastic antibiotics, which include doxorubicin (adriamycin), daunorubicin or epirubicin. Nevertheless, these compounds remain among the most widely used anticancer drugs. The molecular pathogenesis of anthracycline cardiotoxicity remains highly controversial, although the oxidative stress-based hypothesis involving intramyocardial production of reactive oxygen species (ROS) has gained the widest acceptance. Anthracyclines may promote the formation of ROS through redox cycling of their aglycones as well as their anthracycline-iron complexes. This proposed mechanism has become particularly popular in light of the high cardioprotective efficacy of dexrazoxane (ICRF-187). The mechanism of action of this drug has been attributed to its hydrolytic transformation into the iron-chelating metabolite ADR-925, which may act by displacing iron from anthracycline-iron complexes or by chelating free or loosely bound cellular iron, thus preventing site-specific iron-catalyzed ROS damage. However, during the last decade, calls for the critical reassessment of this "ROS and iron" hypothesis have emerged. Numerous antioxidants, although efficient in cellular or acute animal experiments, have failed to alleviate anthracycline cardiotoxicity in clinically relevant chronic animal models or clinical trials. In addition, studies with chelators that are stronger and more selective for iron than ADR-925 have also yielded negative or, at best, mixed outcomes. Hence, several lines of evidence suggest that mechanisms other than the traditionally emphasized "ROS and iron" hypothesis are involved in anthracycline-induced cardiotoxicity and that these alternative mechanisms may be better bases for designing approaches to achieve efficient and safe cardioprotection.
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Affiliation(s)
- Tomás Simůnek
- Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Hradec Králové, Czech Republic.
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Abstract
CNS injury-induced hemorrhage and tissue damage leads to excess iron, which can cause secondary degeneration. The mechanisms that handle this excess iron are not fully understood. We report that spinal cord contusion injury (SCI) in mice induces an "iron homeostatic response" that partially limits iron-catalyzed oxidative damage. We show that ceruloplasmin (Cp), a ferroxidase that oxidizes toxic ferrous iron, is important for this process. SCI in Cp-deficient mice demonstrates that Cp detoxifies and mobilizes iron and reduces secondary tissue degeneration and functional loss. Our results provide new insights into how astrocytes and macrophages handle iron after SCI. Importantly, we show that iron chelator treatment has a delayed effect in improving locomotor recovery between 3 and 6 weeks after SCI. These data reveal important aspects of the molecular control of CNS iron homeostasis after SCI and suggest that iron chelator therapy may improve functional recovery after CNS trauma and hemorrhagic stroke.
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Mladĕnka P, Kalinowski DS, Hašková P, Bobrovová Z, Hrdina R, Šimůnek T, Nachtigal P, Semecký V, Vávrová J, Holečková M, Palicka V, Mazurová Y, Jansson PJ, Richardson DR. The Novel Iron Chelator, 2-Pyridylcarboxaldehyde 2-Thiophenecarboxyl Hydrazone, Reduces Catecholamine-Mediated Myocardial Toxicity. Chem Res Toxicol 2008; 22:208-17. [DOI: 10.1021/tx800331j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Pr̆emysl Mladĕnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Danuta S. Kalinowski
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Pavlína Hašková
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Zuzana Bobrovová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Radomír Hrdina
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Tomáš Šimůnek
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Petr Nachtigal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Vladimír Semecký
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Jaroslava Vávrová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Magdaléna Holečková
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Vladimir Palicka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Yvona Mazurová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Patric J. Jansson
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
| | - Des R. Richardson
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové, Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové, Department of Biological and Medical Science, Faculty of Pharmacy in Hradec Králové, Institute of Clinical Biochemistry and Diagnostics, Faculty of Medicine in Hradec Králové, Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University in Prague, Czech Republic, and Iron Metabolism and Chelation Program, Bosch
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