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Sierakowska A, Jasiewicz B, Piosik Ł, Mrówczyńska L. New C8-substituted caffeine derivatives as promising antioxidants and cytoprotective agents in human erythrocytes. Sci Rep 2023; 13:1785. [PMID: 36720903 PMCID: PMC9888743 DOI: 10.1038/s41598-022-27205-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/28/2022] [Indexed: 02/02/2023] Open
Abstract
New structurally diverse groups of C8-substituted caffeine derivatives were synthesized and evaluated for their chemical and biological properties. Mass spectrometry, FT-IR, and NMR characterizations of these derivatives were performed. The cytotoxic activity of the derivatives was estimated in vitro using human red blood cells (RBC) and in silico pharmacokinetic studies. The antioxidant capacity of the compounds was analyzed using a ferrous ion chelating activity assay. The ability of the derivatives to protect RBC from oxidative damage, including the oxidation of hemoglobin to methemoglobin, was assessed using a water-soluble 2,2'-azobis(2-methyl-propionamidine) dihydrochloride (AAPH) as a standard inducer of peroxyl radicals. The level of intracellular oxidative stress was assessed using the fluorescent redox probe 2',7'-dichlorodihydrofluorescein diacetate (DCF-DA). The results indicate that all derivatives are biocompatible compounds with significant antioxidant and cytoprotective potential dependent on their chemical structure. In order to explain the antioxidant and cytoprotective activity of the derivatives, a mechanism of hydrogen atom transfer (HAT), radical adduct formation (RAF), or single electron transfer (SET), as well as the specific interactions of the derivatives with the lipid bilayer of RBC membrane, have been proposed. The results show that selected modifications of the caffeine molecule enhance its antioxidant properties, which expands our knowledge of the structure-activity relationship of caffeine-based cytoprotective compounds.
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Affiliation(s)
- Arleta Sierakowska
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Beata Jasiewicz
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.
| | - Łukasz Piosik
- Department of Cell Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland
| | - Lucyna Mrówczyńska
- Department of Cell Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland.
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2
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Conjugates of desferrioxamine and aromatic amines improve markers of iron-dependent neurotoxicity. Biometals 2021; 34:259-275. [PMID: 33389339 DOI: 10.1007/s10534-020-00277-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 11/27/2020] [Indexed: 10/22/2022]
Abstract
Alzheimer's Disease (AD) is a complex neurodegenerative disorder associated in some instances with dyshomeostasis of redox-active metal ions, such as copper and iron. In this work, we investigated whether the conjugation of various aromatic amines would improve the pharmacological efficacy of the iron chelator desferrioxamine (DFO). Conjugates of DFO with aniline (DFOANI), benzosulfanylamide (DFOBAN), 2-naphthalenamine (DFONAF) and 6-quinolinamine (DFOQUN) were obtained and their properties examined. DFOQUN had good chelating activity, promoted a significant increase in the inhibition of β-amyloid peptide aggregation when compared to DFO, and also inhibited acetylcholinesterase (AChE) activity both in vitro and in vivo (Caenorhabditis elegans). These data indicate that the covalent conjugation of a strong iron chelator to an AChE inhibitor offers a powerful approach for the amelioration of iron-induced neurotoxicity symptoms.
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3
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Espósito BP, Martins AC, de Carvalho RRV, Aschner M. High throughput fluorimetric assessment of iron traffic and chelation in iron-overloaded Caenorhabditis elegans. Biometals 2020; 33:255-267. [PMID: 32979113 DOI: 10.1007/s10534-020-00250-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 09/16/2020] [Indexed: 01/31/2023]
Abstract
The nematode Caenorhabditis elegans (C. elegans) is a convenient tool to evaluate iron metabolism as it shares great orthology with human proteins involved in iron transport, in addition to being transparent and readily available. In this work, we describe how wild-type (N2) C. elegans nematodes in the first larval stage can be loaded with acetomethoxycalcein (CAL-AM) and study it as a whole-organism model for both iron speciation and chelator permeability of the labile iron pool (LIP). This model may be relevant for high throughput assessment of molecules intended for chelation therapy of iron overload diseases.
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Affiliation(s)
- Breno Pannia Espósito
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, SP, Brazil.
| | - Airton Cunha Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA
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4
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Rasheed A, Carvalho AAC, de Carvalho GGA, Ghous T, Nomura CS, Esposito BP. Chromium removal from aqueous solutions using new silica gel conjugates of desferrioxamine or diethylenetriaminepentaacetic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:15635-15644. [PMID: 32078726 DOI: 10.1007/s11356-020-08097-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/12/2020] [Indexed: 06/10/2023]
Abstract
Desferrioxamine (DFO) and diethylenetriaminepentaacetic acid (DTPA) conjugated with silica gel (IDFOSG and IDTPASG, respectively) were evaluated as adsorbents for chromium in aqueous solutions. Different parameters affecting adsorption such as pH, sorbent dosage, contact time, sample volume and potential of interfering ions have been optimized. The optimum pH for chromium binding was 4 for 100 mg of adsorbents at 5 min of table shaking with 5 mL sample volume of chromium solutions. Langmuir adsorption model described the removal of chromium ions. The adsorption capacity for chromium was 90% for IDFOSG and 83% for IDTPASG in single solutions, and at least 75% in multielemental solutions. Considering the removal efficacy, regeneration and stability, DFO-grafted silica gel was generally superior to its DTPA counterpart and may be applied to the removal of traces of chromium species from natural waters.
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Affiliation(s)
- Aamir Rasheed
- Department of Chemistry, University of Azad Jammu and Kashmir, Muzaffarabad, Azad Kashmir, 13100, Pakistan
| | | | | | - Tahseen Ghous
- Department of Chemistry, Mirpur University of Science & Technology (MUST), Mirpur, Azad Jammu and Kashmir, 10250, Pakistan
| | - Cassiana Seimi Nomura
- Department of Fundamental Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP, 05508-000, Brazil
| | - Breno Pannia Esposito
- Department of Fundamental Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP, 05508-000, Brazil.
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5
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Antioxidant activity and cellular uptake of the hydroxamate-based fungal iron chelators pyridoxatin, desferriastechrome and desferricoprogen. Biometals 2019; 32:707-715. [DOI: 10.1007/s10534-019-00202-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 05/29/2019] [Indexed: 10/26/2022]
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6
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Li B, Espósito BP, Wang S, Zhang J, Xu M, Zhang S, Zhang Z, Liu S. Desferrioxamine-caffeine shows improved efficacy in chelating iron and depleting cancer stem cells. J Trace Elem Med Biol 2019; 52:232-238. [PMID: 30732888 DOI: 10.1016/j.jtemb.2019.01.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/04/2018] [Accepted: 01/07/2019] [Indexed: 12/13/2022]
Abstract
Iron chelation has already been proposed to be a feasible strategy for cancer therapeutics in that reinforced iron demand is demonstrated in cancer cells, and quite a few iron chelators have been developed for this purpose. Desferrioxamine (DFO), an iron chelator approved by the U.S. Food and Drug Administration (FDA), has been extensively examined to remove extra iron. However, DFO has been found to harbor limited efficacies in combating cancer cells due to poor cellular permeability. In the current study, we synthesized the DFO derivative, named as desferrioxamine-caffeine dimer (DFCAF) by linking DFO to caffeine with high purity and excellent stability. Our data showed that DFCAF displayed greater cellular permeability to chelate intracellular iron in 4T1 breast cancer cells than DFO, posing more inhibition on cell growth and cellular motility/invasion. Importantly, DFCAF was uncovered to remarkably deplete cancer stem cells (CSCs), as characterized by the remarkable decrease of the CD44+/high/CD24-/low and ALDH+/high subpopulation. In parallel, DFCAF was also found to greatly reverse epithelial-mesenchymal transition (EMT), suggesting the potential application to restrain tumor progression and metastasis. Collectively, these data unveiled the improved efficacy to target cancer cells and to deplete CSCs, thus opening a new path for better cancer therapeutics through iron chelation.
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Affiliation(s)
- Bin Li
- Department of Urology, Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin 300211, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Breno Pannia Espósito
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo 05508-000, Brazil
| | - Shunhao Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuping Zhang
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Zhihong Zhang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital, Tianjin Medical University, Tianjin 300211, China.
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Pramanik S, Chakraborty S, Sivan M, Patro BS, Chatterjee S, Goswami D. Cell Permeable Imidazole-Desferrioxamine Conjugates: Synthesis and In Vitro Evaluation. Bioconjug Chem 2019; 30:841-852. [PMID: 30762349 DOI: 10.1021/acs.bioconjchem.8b00924] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Desferrioxamine (DFO), a clinically approved iron chelator used for iron overload, is unable to chelate labile plasma iron (LPI) because of its limited cell permeability. Herein, alkyl chain modified imidazolium cations with varied hydrophobicities have been conjugated with DFO. The iron binding abilities and the antioxidant properties of the conjugates were found to be similar to DFO. The degree of cellular internalization was much higher in the octyl-imidazolium-DFO conjugate (IV) compared with DFO, and IV was able to chelate LPI in vitro. This opens up a new avenue in using N-alkyl imidazolium salts as a delivery vector for hydrophilic cell-impermeable drugs.
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Affiliation(s)
- Shreya Pramanik
- Centre for Excellence in Basic Sciences , Mumbai 400098 , India
| | - Saikat Chakraborty
- Bio-Organic Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - Malavika Sivan
- Indian Institute of Science Education and Research , Bhopal 462066 , India
| | - Birija S Patro
- Bio-Organic Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India.,Homi Bhabha National Institute , Anushaktinagar, Mumbai 400094 , India
| | - Sucheta Chatterjee
- Bio-Organic Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India
| | - Dibakar Goswami
- Bio-Organic Division , Bhabha Atomic Research Centre , Trombay, Mumbai 400085 , India.,Homi Bhabha National Institute , Anushaktinagar, Mumbai 400094 , India
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8
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Analogues of desferrioxamine B (DFOB) with new properties and new functions generated using precursor-directed biosynthesis. Biometals 2019; 32:395-408. [PMID: 30701380 DOI: 10.1007/s10534-019-00175-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 01/21/2019] [Indexed: 10/27/2022]
Abstract
Desferrioxamine B (DFOB) is a siderophore native to Streptomyces pilosus biosynthesised by the DesABCD enzyme cluster as a high affinity Fe(III) chelator. Although DFOB has a long clinical history for the treatment of chronic iron overload, limitations encourage the development of new analogues. This review describes a recent body of work that has used precursor-directed biosynthesis (PDB) to access new DFOB analogues. PDB exploits the native biosynthetic machinery of a producing organism in culture medium augmented with non-native substrates that compete against native substrates during metabolite assembly. The method allows access to analogues of natural products using benign methods, compared to multistep organic synthesis. The disadvantages of PDB are the production of metabolites in low yield and the need to purify complex mixtures. Streptomyces pilosus medium was supplemented with different types of non-native diamine substrates to compete against native 1,5-diaminopentane to generate DFOB analogues containing alkene bonds, fluorine atoms, ether or thioether functional groups, or a disulfide bond. All analogues retained function as Fe(III) chelators and have properties that could broaden the utility of DFOB. These PDB studies have also added knowledge to the understanding of DFOB biosynthesis.
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9
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Codd R, Richardson-Sanchez T, Telfer TJ, Gotsbacher MP. Advances in the Chemical Biology of Desferrioxamine B. ACS Chem Biol 2018; 13:11-25. [PMID: 29182270 DOI: 10.1021/acschembio.7b00851] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Desferrioxamine B (DFOB) was discovered in the late 1950s as a hydroxamic acid metabolite of the soil bacterium Streptomyces pilosus. The exquisite affinity of DFOB for Fe(III) identified its potential for removing excess iron from patients with transfusion-dependent hemoglobin disorders. Many studies have used semisynthetic chemistry to produce DFOB adducts with new properties and broad-ranging functions. More recent approaches in chemical biology have revealed some nuances of DFOB biosynthesis and discovered new DFOB-derived drugs and radiometal imaging agents. The current and potential applications of DFOB continue to inspire a rich body of chemical biology research focused on this bacterial metabolite.
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Affiliation(s)
- Rachel Codd
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Tomas Richardson-Sanchez
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Thomas J. Telfer
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Michael P. Gotsbacher
- School of Medical Sciences
(Pharmacology), The University of Sydney, Sydney, New South Wales 2006, Australia
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10
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Alta RYP, Vitorino HA, Goswami D, Terêsa Machini M, Espósito BP. Triphenylphosphonium-desferrioxamine as a candidate mitochondrial iron chelator. Biometals 2017; 30:709-718. [PMID: 28770399 DOI: 10.1007/s10534-017-0039-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 07/28/2017] [Indexed: 12/13/2022]
Abstract
Cell-impermeant iron chelator desferrioxamine (DFO) can have access to organelles if appended to suitable vectors. Mitochondria are important targets for the treatment of iron overload-related neurodegenerative diseases. Triphenylphosphonium (TPP) is a delocalized lipophilic cation used to ferry molecules to mitochondria. Here we report the synthesis and characterization of the conjugate TPP-DFO as a mitochondrial iron chelator. TPP-DFO maintained both a high affinity for iron and the antioxidant activity when compared to parent DFO. TPP-DFO was less toxic than TPP alone to A2780 cells (IC50 = 135.60 ± 1.08 and 4.34 ± 1.06 μmol L-1, respectively) and its native fluorescence was used to assess its mitochondrial localization (Rr = +0.56). These results suggest that TPP-DFO could be an interesting alternative for the treatment of mitochondrial iron overload e.g. in Friedreich's ataxia.
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Affiliation(s)
- Roxana Y P Alta
- Laboratory of Bioinorganic Chemistry and Metallodrugs, Department of Fundamental Chemistry, University of São Paulo, Av. Lineu Prestes 748, São Paulo, 05508-000, São Paulo, Brazil. .,Laboratory of Peptide Chemistry, Department of Biochemistry, Institute of Chemistry, University of São Paulo, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, São Paulo, Brazil.
| | - Hector A Vitorino
- Laboratory of Bioinorganic Chemistry and Metallodrugs, Department of Fundamental Chemistry, University of São Paulo, Av. Lineu Prestes 748, São Paulo, 05508-000, São Paulo, Brazil
| | | | - M Terêsa Machini
- Laboratory of Peptide Chemistry, Department of Biochemistry, Institute of Chemistry, University of São Paulo, Av. Professor Lineu Prestes 748, São Paulo, 05508-000, São Paulo, Brazil
| | - Breno P Espósito
- Laboratory of Bioinorganic Chemistry and Metallodrugs, Department of Fundamental Chemistry, University of São Paulo, Av. Lineu Prestes 748, São Paulo, 05508-000, São Paulo, Brazil
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Truong TM, Li H, Dhapare S, Desai UR, Voelkel NF, Sakagami M. Sulfated dehydropolymer of caffeic acid: In vitro anti-lung cell death activity and in vivo intervention in emphysema induced by VEGF receptor blockade. Pulm Pharmacol Ther 2017. [PMID: 28648907 DOI: 10.1016/j.pupt.2017.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Induced lung cell death and impaired hypoxia-inducible factor-1α (HIF-1α) and vascular endothelial growth factor (VEGF) signaling are proposed as a pathobiologic mechanism for alveolar structural destruction and loss in emphysema. We hypothesized that our sulfated dehydropolymer of caffeic acid, CDSO3, exerts anti-cell death activities and therapeutic interventions in emphysema by virtue of Fe2+ chelation-based HIF-1α/VEGF stabilization and elevation. The Fe2+ chelating activity was determined in the chromogenic ferrozine-Fe2+ chelation inhibitory assay. The in vitro anti-cell death activities and their Fe2+ and HIF-1α dependence were assessed against a range of emphysematous insults in the lung endothelial (HMVEC-L) and epithelial (A549) cells. CDSO3 was spray-dosed to the lung for three weeks (day 1-21) in an in vivo rat model of apoptotic emphysema induced with a VEGF receptor antagonist SU5416. Post-treatment treadmill exercise endurance, airspace enlargement, and several lung biomarkers/proteins were measured. CDSO3 was a potent Fe2+ chelating molecule. At 10 μM, CDSO3 inhibited HMVEC-L and A549 cell death induced by histone deacetylase inhibition with trichostatin A, VEGF receptor blockade with SU5416, and cigarette smoke extract by 65-99%, which were all significantly opposed by addition of excess Fe2+ or HIF-1α inhibitors. As a potent elastase inhibitor and antioxidant, CDSO3 also inhibited elastase- and H2O2-induced cell death by 92 and 95%, respectively. In the rat model of SU5416-induced apoptotic emphysema, CDSO3 treatment at 60 μg/kg 1) produced 61-77% interventions against exercise endurance impairment, airspace enlargement [mean linear intercept] and oxidative lung damage [malondialdehyde activity]; 2) normalized the apoptotic marker [cleaved caspase-3]; 3) stimulated the VEGF signaling [VEGF receptor 2 phosphorylation] by 1.4-fold; and 4) elevated the HIF-1α and VEGF expression by 1.8- and 1.5-fold, respectively. All of these were consistent with CDSO3's Fe2+ chelation-based HIF-1α/VEGF stabilization and elevation against their pathobiologic deficiency, inhibiting lung cell death and development of apoptotic emphysema.
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Affiliation(s)
- Tien M Truong
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N, 12th Street, P. O. Box 980533, Richmond, VA 23298, USA.
| | - Hua Li
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N, 12th Street, P. O. Box 980533, Richmond, VA 23298, USA.
| | - Sneha Dhapare
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N, 12th Street, P. O. Box 980533, Richmond, VA 23298, USA.
| | - Umesh R Desai
- Department of Medicinal Chemistry, Institute for Structural Biology and Drug Discovery and Development, Virginia Commonwealth University, 800 East Leigh Street, Richmond, VA 23219, USA.
| | - Nobert F Voelkel
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N, 12th Street, P. O. Box 980533, Richmond, VA 23298, USA.
| | - Masahiro Sakagami
- Department of Pharmaceutics, School of Pharmacy, Virginia Commonwealth University, 410 N, 12th Street, P. O. Box 980533, Richmond, VA 23298, USA.
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Huayhuaz JAA, Vitorino HA, Campos OS, Serrano SHP, Kaneko TM, Espósito BP. Desferrioxamine and desferrioxamine-caffeine as carriers of aluminum and gallium to microbes via the Trojan Horse Effect. J Trace Elem Med Biol 2017; 41:16-22. [PMID: 28347458 DOI: 10.1016/j.jtemb.2017.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/13/2017] [Accepted: 01/17/2017] [Indexed: 01/24/2023]
Abstract
Iron acquisition by bacteria and fungi involves in several cases the promiscuous usage of siderophores. Thus, antibiotic resistance from these microorganisms can be circumvented through a strategy of loading toxic metals into siderophores (Trojan Horse Effect). Desferrioxamine (dfo) and its cell-permeant derivative desferrioxamine-caffeine (dfcaf) were complexed with aluminum or gallium for this purpose. The complexes Me(dfo) and Me(dfcaf) (Me=Al3+ and Ga3+) were synthesized and characterized by mass spectroscopy and cyclic voltammetry. Their relative stabilities were studied through competitive equilibria with fluorescent probes calcein, fluorescein-desferrioxamine and 8-hydroxyquinoline. Me(dfo) and Me(dfcaf) were consistently more toxic than free Me3+ against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Candida albicans, demonstrating the Trojan Horse Effect. Wide spectrum antimicrobial action can be obtained by loading non-essential or toxic metal ions to microbes via a convenient siderophore carrier.
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Affiliation(s)
- Jesus Antonio Alvarado Huayhuaz
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo,Av. Prof. Lineu Prestes, 748, 05508-000, São Paulo, SP, Brazil
| | - Hector Aguilar Vitorino
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo,Av. Prof. Lineu Prestes, 748, 05508-000, São Paulo, SP, Brazil
| | - Othon Souto Campos
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo,Av. Prof. Lineu Prestes, 748, 05508-000, São Paulo, SP, Brazil
| | - Silvia Helena Pires Serrano
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo,Av. Prof. Lineu Prestes, 748, 05508-000, São Paulo, SP, Brazil
| | - Telma Mary Kaneko
- Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Breno Pannia Espósito
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo,Av. Prof. Lineu Prestes, 748, 05508-000, São Paulo, SP, Brazil.
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13
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Adamantyl- and other polycyclic cage-based conjugates of desferrioxamine B (DFOB) for treating iron-mediated toxicity in cell models of Parkinson’s disease. Bioorg Med Chem Lett 2017; 27:1698-1704. [DOI: 10.1016/j.bmcl.2017.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 11/18/2022]
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14
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Gotsbacher MP, Telfer TJ, Witting PK, Double KL, Finkelstein DI, Codd R. Analogues of desferrioxamine B designed to attenuate iron-mediated neurodegeneration: synthesis, characterisation and activity in the MPTP-mouse model of Parkinson's disease. Metallomics 2017; 9:852-864. [DOI: 10.1039/c7mt00039a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
One dual-function (2) and one first-generation (9) conjugate of the Fe(iii) chelator desferrioxamine B (DFOB,1) showed significant rescue of neurons in the MPTP mouse model of Parkinson's disease.
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Affiliation(s)
- Michael P. Gotsbacher
- School of Medical Sciences (Pharmacology)
- and Bosch Institute
- The University of Sydney
- Australia
| | - Thomas J. Telfer
- School of Medical Sciences (Pharmacology)
- and Bosch Institute
- The University of Sydney
- Australia
| | - Paul K. Witting
- School of Medical Sciences (Pathology)
- and Bosch Institute
- The University of Sydney
- Australia
| | - Kay L. Double
- Brain and Mind Centre
- and School of Medical Sciences (Biomedical Sciences)
- The University of Sydney
- Australia
| | | | - Rachel Codd
- School of Medical Sciences (Pharmacology)
- and Bosch Institute
- The University of Sydney
- Australia
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15
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Yan J, Ji Y, Zhang P, Lu X, Fan Q, Pan D, Yang R, Xu Y, Wang L, Zhang L, Yang M. Melanin nanoparticles as an endogenous agent for efficient iron overload therapy. J Mater Chem B 2016; 4:7233-7240. [DOI: 10.1039/c6tb01558a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Melanin was an efficient endogenous agent for iron-overload therapy in living mice due to its native biocompatibility, biodegradability and high iron-capturing volume.
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