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Guallar-Garrido S, Soldati T. Exploring host-pathogen interactions in the Dictyostelium discoideum-Mycobacterium marinum infection model of tuberculosis. Dis Model Mech 2024; 17:dmm050698. [PMID: 39037280 DOI: 10.1242/dmm.050698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024] Open
Abstract
Mycobacterium tuberculosis is a pathogenic mycobacterium that causes tuberculosis. Tuberculosis is a significant global health concern that poses numerous clinical challenges, particularly in terms of finding effective treatments for patients. Throughout evolution, host immune cells have developed cell-autonomous defence strategies to restrain and eliminate mycobacteria. Concurrently, mycobacteria have evolved an array of virulence factors to counteract these host defences, resulting in a dynamic interaction between host and pathogen. Here, we review recent findings, including those arising from the use of the amoeba Dictyostelium discoideum as a model to investigate key mycobacterial infection pathways. D. discoideum serves as a scalable and genetically tractable model for human phagocytes, providing valuable insights into the intricate mechanisms of host-pathogen interactions. We also highlight certain similarities between M. tuberculosis and Mycobacterium marinum, and the use of M. marinum to more safely investigate mycobacteria in D. discoideum.
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Affiliation(s)
- Sandra Guallar-Garrido
- Department of Biochemistry, Faculty of Science, University of Geneva, 30 quai Ernest-Ansermet, Science II, 1211 Geneva-4, Switzerland
| | - Thierry Soldati
- Department of Biochemistry, Faculty of Science, University of Geneva, 30 quai Ernest-Ansermet, Science II, 1211 Geneva-4, Switzerland
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2
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Tiwari G, Mishra VK, Kumari P, Khanna A, Sharma S, Sagar R. Synthesis of triazole bridged N-glycosides of pyrazolo[1,5- a]pyrimidinones as anticancer agents and their in silico docking studies. RSC Adv 2024; 14:1304-1315. [PMID: 38174229 PMCID: PMC10762718 DOI: 10.1039/d3ra06993a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
In the pursuit of novel therapeutic agents, we present a comprehensive study on the design, synthesis, and evaluation of a diverse library of triazole bridged N-glycosides of pyrazolo[1,5-a]pyrimidinones, employing a microwave-assisted synthetic approach via 'click chemistry'. This methodology offers efficient and accelerated access to the glycohybrids, showcasing improved reaction conditions that yield high-quality products. In this research endeavor, we have successfully synthesized a series of twenty-seven triazole bridged N-glycosides of pyrazolo[1,5-a]pyrimidinones. Our investigation extends beyond synthetic endeavors to explore the potential therapeutic relevance of these compounds. We subjected them to rigorous in vitro screening against prominent breast cancer cell lines MCF-7, MDA-MB231, and MDA-MB453. Among the library of compounds synthesized, (2S,3S,4R,5S,6S)-2-(acetoxymethyl)-6-(4-((5-(4-methoxyphenyl)-7-oxopyrazolo[1,5-a]pyrimidin-1(7H)-yl)methyl)-1H-1,2,3-triazol-1-yl)tetrahydro-2H-pyran-3,4,5-triyl triacetate emerged as a potent compound, exhibiting remarkable anti-cancer activity with an IC50 value of 27.66 μM against the MDA-MB231 cell line. Additionally, (2S,3R,4R,5S,6S)-2-(acetoxymethyl)-6-(4-((7-oxo-5-(4-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidin-1(7H)-yl)methyl)-1H-1,2,3-triazol-1-yl)tetrahydro-2H-pyran-3,4,5-triyl triacetate displayed notable inhibitory potential against the MCF-7 cell line, with an IC50 value of 4.93 μM. Furthermore, in silico docking analysis was performed to validate our experimental findings. These findings underscore the promise of our triazole bridged N-glycosides of pyrazolo[1,5-a]pyrimidinones as potential anti-cancer agents. This research not only enriches the field of glycohybrid synthesis but also contributes valuable insights into the development of novel anti-cancer therapeutics.
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Affiliation(s)
- Ghanshyam Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
| | - Vinay Kumar Mishra
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
| | - Priti Kumari
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
| | - Ashish Khanna
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
| | - Sunil Sharma
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University New Delhi 110067 India
| | - Ram Sagar
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University New Delhi 110067 India
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Bielenica A, Głogowska A, Augustynowicz-Kopeć E, Orzelska-Górka J, Kurpios-Piec D, Struga M. In vitro antimycobacterial activity and interaction profiles of diarylthiourea-copper (II) complexes with antitubercular drugs against Mycobacterium tuberculosis isolates. Tuberculosis (Edinb) 2023; 143:102412. [PMID: 37774599 DOI: 10.1016/j.tube.2023.102412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/01/2023]
Abstract
The activity of several halogenated copper (II) complexes of 4-chloro-3-nitrophenylthiourea derivatives has been tested against Mycobacterium tuberculosis strains and strains of non-tuberculous mycobacteria. The compounds were 2-16 times more potent than current TB-drugs against multidrug-resistant M. tuberculosis 210. The 3,4-dichlorophenylthiourea complex (5) was equipotent to ethambutol (EMB) towards M. tuberculosis H37Rv and 192 strains. All derivatives acted 2-8 times stronger than isoniazid (INH) against nontuberculous isolates. In the presence of chosen coordinates, the 2-64 times reduction of MIC values of standard drugs was denoted. The synergistic interaction was found between the complex 4 and rifampicin (RMP), and additivity of 1-5, 8 in pairs with EMB and/or streptomycin (SM) against M. tuberculosis 800 was established. All coordination compounds in combination with at least one drug showed additive activity towards both H37Rv and 192 isolates. In 67% incidences of indifference, the individual MIC of a drug decreased 2-16-fold. One can conclude that the novel thiourea chelates described here are potent hits for further developments of new agents against tuberculosis.
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Affiliation(s)
- Anna Bielenica
- Department of Biochemistry, Medical University of Warsaw, 02-097, Warsaw, Poland.
| | - Agnieszka Głogowska
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 01-138, Warsaw, Poland
| | - Ewa Augustynowicz-Kopeć
- Department of Microbiology, National Tuberculosis and Lung Diseases Research Institute, 01-138, Warsaw, Poland
| | - Jolanta Orzelska-Górka
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Lublin, Poland
| | - Dagmara Kurpios-Piec
- Department of Biochemistry, Medical University of Warsaw, 02-097, Warsaw, Poland
| | - Marta Struga
- Department of Biochemistry, Medical University of Warsaw, 02-097, Warsaw, Poland
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O'Brien H, Davoodian T, Johnson MDL. The promise of copper ionophores as antimicrobials. Curr Opin Microbiol 2023; 75:102355. [PMID: 37406562 PMCID: PMC10529258 DOI: 10.1016/j.mib.2023.102355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 05/31/2023] [Accepted: 06/09/2023] [Indexed: 07/07/2023]
Abstract
Antibiotic-resistant microbe-mediated deaths are a major worldwide health issue. Unfortunately, due to microbial adaptation to develop resistance, some antibiotics are nullified early in their usage, and worse, resistance is detected before they can even be prescribed. Copper's toxicity since antiquity against microbes at the host-pathogen interface offers a fascinating weapon to fight antimicrobial resistance. Here, we briefly review why copper is so effective, how drugs that work with copper are effective antimicrobials, and how compounds such as these could reinvigorate investment in antimicrobial development.
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Affiliation(s)
- Henrik O'Brien
- Department of Immunobiology, University of Arizona College of Medicine - Tucson, Tucson, AZ 85724, USA
| | - Talish Davoodian
- Department of Immunobiology, University of Arizona College of Medicine - Tucson, Tucson, AZ 85724, USA
| | - Michael D L Johnson
- Department of Immunobiology, University of Arizona College of Medicine - Tucson, Tucson, AZ 85724, USA; Valley Fever Center for Excellence, University of Arizona College of Medicine - Tucson, Tucson, AZ 85724, USA; BIO5 Institute, University of Arizona College of Medicine - Tucson, Tucson, AZ 85724, USA; Asthma and Airway Disease Research Center, University of Arizona College of Medicine - Tucson, Tucson, AZ 85724, USA.
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Kuramarohit S, Yaourtis AM, Nguyen A, Wood ML, Levina A, Lay PA. Anti-Migratory and Cytotoxic Activities of [Ga(8-hydroxyquinolinato) 3 ]: Roles of Endogenous Cu(II) and Drug-Induced Phenotypic Changes. Chemistry 2023; 29:e202203323. [PMID: 37385951 DOI: 10.1002/chem.202203323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 07/01/2023]
Abstract
As shown by IncuCyte Zoom imaging proliferation assays, invasive triple-negative human breast MDA-MB-231 cancer cells treated with sub-toxic doses (5.0-20 μM, 72 h) of [GaQ3 ] (Q=8-hydroxyquinolinato) caused profound morphological changes and inhibition of cell migration, which were likely due to terminal cell differentiation or similar phenotypical change. This is the first demonstration of potential use of a metal complex in differentiation anti-cancer therapy. Additionally, a trace amount of Cu(II) (0.20 μM) added to the medium dramatically increased [GaQ3 ] cytotoxicity (IC50 ~2 μM, 72 h) due to its partial dissociation and the action of the HQ ligand as a Cu(II) ionophore, as shown with electrospray mass spectrometry and fluorescence spectroscopy assays in the medium. Hence, cytotoxicity of [GaQ3 ] is strongly linked to ligand binding of essential metal ions in the medium, for example, Cu(II). Appropriate delivery mechanisms of such complexes and their ligands could enable a powerful new triple therapeutic approach for cancer chemotherapy, including cytotoxicity against primary tumour, arrest of metastases, and activation of innate and adaptive immune responses.
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Affiliation(s)
- Serene Kuramarohit
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
- University of California, Berkeley, USA
| | - Andria M Yaourtis
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Annie Nguyen
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Michelle L Wood
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
- Sydney Analytical, The University of Sydney, Sydney, NSW 2006, Australia
| | - Aviva Levina
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
| | - Peter A Lay
- School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia
- Sydney Analytical, The University of Sydney, Sydney, NSW 2006, Australia
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Božić Cvijan B, Korać Jačić J, Bajčetić M. The Impact of Copper Ions on the Activity of Antibiotic Drugs. Molecules 2023; 28:5133. [PMID: 37446795 DOI: 10.3390/molecules28135133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 07/15/2023] Open
Abstract
Copper (Cu) is an essential trace metal and its concentration in body plasma is tightly regulated. An increase in Cu concentration in body fluids is observed in numerous pathological conditions, including infections caused by microorganisms. Evidence shows that Cu ions can impact the activity of antibiotics by increasing efficiency or diminishing/neutralizing antibiotic activity, forming complexes which may lead to antibiotic structure degradation. Herein, we represent the evidence available on Cu-antibiotic interactions and their possible impact on antimicrobial therapy efficiency. So far, in vitro studies described interactions between Cu ions and the majority of antibiotics in clinical use: penicillins, cephalosporins, carbapenems, macrolides, aminoglycosides, tetracyclines, fluoroquinolones, isoniazid, metronidazole. In vitro-described degradation or lower antimicrobial activity of amoxicillin, ampicillin, cefaclor, ceftriaxone, and meropenem in the presence of Cu ions suggest caution when using prescribed antibiotics in patients with altered Cu levels. On the other hand, several Cu-dependent compounds with antibacterial activity including the drug-resistant bacteria were discovered, such as thiosemicarbazones, disulfiram, dithiocarbamates, 8-hydroxiquinoline, phenanthrolines, pyrithione. Having in mind that the development of new antibiotics is already marked as inadequate and does not meet global needs, the potential of Cu-antibiotic interactions to change the efficiency of antimicrobial therapy requires further investigation.
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Affiliation(s)
- Bojana Božić Cvijan
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Jelena Korać Jačić
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11000 Belgrade, Serbia
| | - Milica Bajčetić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Clinical Pharmacology Unit, University Children's Hospital, 11000 Belgrade, Serbia
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Hoffmann AM, Wolke M, Rybniker J, Plum G, Fuchs F. Activity of the old antimicrobial nitroxoline against Mycobacterium abscessus complex isolates. J Glob Antimicrob Resist 2023; 33:1-4. [PMID: 36842457 DOI: 10.1016/j.jgar.2023.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 01/30/2023] [Accepted: 02/07/2023] [Indexed: 02/28/2023] Open
Abstract
OBJECTIVES The old antimicrobial nitroxoline is approved to treat urinary tract infection (UTI) and is currently rediscovered for treatment of drug resistant pathogens. Mycobacteria of the Mycobacterium abscessus complex (MYABS) are rapid-growing nontuberculous mycobacteria that are associated with difficult to treat infections of the lungs in patients with pulmonary disorders such as cystic fibrosis. In this study we assessed the in vitro activity of nitroxoline against molecularly characterized drug-resistant MYABS isolates from clinical samples to address potential repurposing of nitroxoline in difficult-to-treat MYABS infection. METHODS The isolates originated from clinical samples collected between 2010 and 2019 at the University Hospital of Cologne, Germany (N=16; 10/16 M. abscessus Spp. abscessus, 4/16 M. abscessus Spp. massiliense, 2/16 M. abscessus Spp. bolletii). Nitroxoline activity was compared to standard antimicrobials recommended for treatment of MYABS infection. For drug susceptibility testing of nitroxoline and comparators broth microdilution was performed based on current Clinical and Laboratory Standards Institute (CLSI) guidelines. RESULTS Nitroxoline yielded a MIC90 of 4 mg/L (range 2-4 mg/L), which is two twofold dilutions below the current EUCAST susceptibility breakpoint of ≤ 16 mg/L (limited to uncomplicated UTI and Escherichia coli). Resistance to other antimicrobials was common in our cohort (16/16 isolates resistant to ciprofloxacin, imipenem and doxycycline; 12/16 isolates resistant to tobramycin; 9/16 isolates resistant to cefoxitin; 7/16 isolates resistant to clarithromycin; 2/16 isolates resistant to amikacin). CONCLUSION Nitroxoline has a promising in vitro activity against drug-resistant MYABS isolates. Future studies should investigate this finding with macrophage and in vivo models.
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Affiliation(s)
- Ada Marie Hoffmann
- Institute for Medical Microbiology, Immunology and Hygiene, Medical faculty and University Hospital of Cologne, Cologne, Germany
| | - Martina Wolke
- Institute for Medical Microbiology, Immunology and Hygiene, Medical faculty and University Hospital of Cologne, Cologne, Germany
| | - Jan Rybniker
- Department I of Internal Medicine, University of Cologne, Cologne, Germany; German Center for Infection Research (DZIF), partner site Bonn Cologne
| | - Georg Plum
- Institute for Medical Microbiology, Immunology and Hygiene, Medical faculty and University Hospital of Cologne, Cologne, Germany
| | - Frieder Fuchs
- Institute for Medical Microbiology, Immunology and Hygiene, Medical faculty and University Hospital of Cologne, Cologne, Germany; Department of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, Koblenz, Germany.
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Dermody R, Ali F, Popovich J, Chen S, Seo DK, Haydel SE. Modified aluminosilicates display antibacterial activity against nontuberculous mycobacteria and adsorb mycolactone and Mycobacterium ulcerans in vitro. FRONTIERS IN TROPICAL DISEASES 2022. [DOI: 10.3389/fitd.2022.1016426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Mycobacterium ulcerans (MU) infection of skin and soft tissue leads to chronic skin ulceration known as Buruli ulcer. MU releases a lipid-like toxin, mycolactone, that diffuses into the tissue, effecting disease through localized tissue necrosis and immunosuppression. Cutaneous Buruli ulcer wounds slowly advance from a painless pre-ulcerative stage to an ulcerative lesion, leading to disparities in the timing of medical intervention and treatment outcomes. Novel Buruli ulcer wound management solutions could complement and supplement systemically administered antimicrobials and reduce time to healing. Capitalizing on nanopore structure, adsorption, and exchange capacities, aluminosilicate nanozeolites (nZeos) and geopolymers (GPs) were developed and investigated in the context of therapeutics for mycobacterial disease ulcerative wound care. nZeos were ion exchanged with copper or silver to assess the antimicrobial activity against MU and Mycobacterium marinum, a rapid growing, genetic ancestor of MU that also causes skin and soft tissue infections. Silver- and copper-exchanged nZeos were bactericidal against MU, while only silver-exchanged nZeos killed M. marinum. To mediate adsorption at a biological scale, GPs with different pore sizes and altered surface modifications were generated and assessed for the ability to adsorb MU and mycolactone. Macroporous GPs with and without stearic acid modification equivalently adsorbed MU cells, while mesoporous GPs with stearic acid adsorbed mycolactone toxin significantly better than mesoporous GPs or GPs modified with phenyltriethoxysilane (PTES). In cytotoxicity assays, Cu-nZeos lacked toxicity against Detroit 551, U-937, and WM-115 cells. GPs demonstrated limited cytotoxicity in Detroit 551 and WM-115, but produced time-dependent toxicity in U-937 cells. With their large surface area and adsorptive capacities, aluminosilicates nZeos and GPs may be modified and developed to support conventional BU wound care. Topical application of nZeos and GPs could kill MU within the cutaneous wound environment and physically remove MU and mycolactone with wound dressing changes, thereby improving wound healing and overall patient outcomes.
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Smith N, Quan D, Nagalingam G, Triccas JA, Rendina LM, Rutledge PJ. Carborane clusters increase the potency of bis-substituted cyclam derivatives against Mycobacterium tuberculosis. RSC Med Chem 2022; 13:1234-1238. [PMID: 36325397 PMCID: PMC9579921 DOI: 10.1039/d2md00150k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/28/2022] [Indexed: 08/04/2023] Open
Abstract
Bis-substituted cyclam derivatives have recently emerged as a promising new class of antibacterial agents, displaying excellent activity against drug-resistant Mycobacterium tuberculosis (Mtb) and in vivo efficacy in a zebrafish assay. Herein we report the synthesis and biological activity of new carborane derivatives within this class of antitubercular compounds. The resulting carborane-cyclam conjugates incorporating either hydrophobic closo-1,2-carborane or anionic, hydrophilic nido-7,8-carborane clusters display promising activity in an antibacterial assay employing the virulent Mtb strain H37Rv. The most active of these carborane derivatives exhibit MIC50 values of <1 μM, making them the most active compounds in this unique class of antibacterial cyclams reported to date.
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Affiliation(s)
- Nicholas Smith
- School of Chemistry, The University of Sydney Sydney NSW 2006 Australia +61 2 9351 5020 +61 2 9351 4781
| | - Diana Quan
- Sydney Institute of Infectious Diseases and Charles Perkins Centre, The University of Sydney Sydney NSW 2006 Australia
- School of Medical Sciences, The University of Sydney Sydney NSW 2006 Australia
| | - Gayathri Nagalingam
- Sydney Institute of Infectious Diseases and Charles Perkins Centre, The University of Sydney Sydney NSW 2006 Australia
- School of Medical Sciences, The University of Sydney Sydney NSW 2006 Australia
| | - James A Triccas
- Sydney Institute of Infectious Diseases and Charles Perkins Centre, The University of Sydney Sydney NSW 2006 Australia
- School of Medical Sciences, The University of Sydney Sydney NSW 2006 Australia
| | - Louis M Rendina
- School of Chemistry, The University of Sydney Sydney NSW 2006 Australia +61 2 9351 5020 +61 2 9351 4781
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney Sydney NSW 2006 Australia
| | - Peter J Rutledge
- School of Chemistry, The University of Sydney Sydney NSW 2006 Australia +61 2 9351 5020 +61 2 9351 4781
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Rigo GV, Joaquim AR, Macedo AJ, de Andrade SF, Tasca T. Iron chelation and inhibition of metallopeptidases mediate anti-Trichomonas vaginalis activity by a novel 8-hydroxyquinoline derivative. Bioorg Chem 2022; 125:105912. [DOI: 10.1016/j.bioorg.2022.105912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 04/24/2022] [Accepted: 05/23/2022] [Indexed: 11/02/2022]
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Hoffmann AM, Wolke M, Rybniker J, Plum G, Fuchs F. In vitro Activity of Repurposed Nitroxoline Against Clinically Isolated Mycobacteria Including Multidrug-Resistant Mycobacterium tuberculosis. Front Pharmacol 2022; 13:906097. [PMID: 35721137 PMCID: PMC9198898 DOI: 10.3389/fphar.2022.906097] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/10/2022] [Indexed: 11/13/2022] Open
Abstract
Antimicrobial treatment options for mycobacterial infections are limited due to intrinsic resistance and the emergence of acquired resistance in Mycobacterium tuberculosis. Isolates resisting first- and second line drugs are raising concerns about untreatable infections and make the development of new therapeutic strategies more pressing. Nitroxoline is an old oral antimicrobial that is currently repurposed for the treatment of urinary tract infection (UTI). In this study, we report the in vitro activity of nitroxoline against 18 clinical isolates of M. tuberculosis complex (MTBC) (M. tuberculosis N = 16, M. bovis BCG N = 1, M. bovis sp. bovis N = 1). Since nitroxoline achieves high concentrations in the urinary tract, we included all MTBC-isolates from urinary samples sent to our laboratory between 2008 and 2021 (University Hospital of Cologne, Germany). Isolates from other sources (N = 7/18) were added for higher sample size and for inclusion of drug-resistant M. tuberculosis isolates (N = 4/18). Based on our clinical routine the fluorescence-based liquid media system BACTEC MGIT 960 was used for susceptibility testing of nitroxoline and mainstay antitubercular drugs. Nitroxoline yielded a MIC90 of 4 mg/L for MTBC. In all M. tuberculosis isolates nitroxoline MICs were at least two twofold dilutions below the current EUCAST susceptibility breakpoint of ≤16 mg/L (limited to E. coli and uncomplicated UTI). In vitro activity of nitroxoline can be considered excellent, even in multidrug-resistant isolates. Future studies with in vivo models should evaluate a potential role of nitroxoline in the treatment of tuberculosis in the era of drug resistance.
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Affiliation(s)
- Ada Marie Hoffmann
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Medical Faculty and University Hospital of Cologne, Cologne, Germany
| | - Martina Wolke
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Medical Faculty and University Hospital of Cologne, Cologne, Germany
| | - Jan Rybniker
- Department I of Internal Medicine, Faculty of Medicine and University of Cologne, Cologne, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn Cologne, Cologne, Germany
| | - Georg Plum
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Medical Faculty and University Hospital of Cologne, Cologne, Germany
| | - Frieder Fuchs
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Medical Faculty and University Hospital of Cologne, Cologne, Germany
- Department of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, Koblenz, Germany
- *Correspondence: Frieder Fuchs, , orcid.org/0000-0001-7075-5378
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Heo J, Koh D, Woo M, Kwon D, de Almeida Falcão VC, Wood C, Lee H, Kim K, Choi I, Jang J, Brodin P, Shum D, Delorme V. A combination screening to identify enhancers of para-aminosalicylic acid against Mycobacterium tuberculosis. Sci Rep 2022; 12:5635. [PMID: 35379873 PMCID: PMC8980009 DOI: 10.1038/s41598-022-08209-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 02/04/2022] [Indexed: 11/26/2022] Open
Abstract
Para-aminosalicylic acid (PAS) is an antibiotic that was largely used for the multi-therapy of tuberculosis in the twentieth century. To try to overcome the inconvenience of its low efficacy and poor tolerance, we searched for novel chemical entities able to synergize with PAS using a combination screening against growing axenic Mycobacterium tuberculosis. The screening was performed at a sub-inhibitory concentration of PAS on a library of about 100,000 small molecules. Selected hit compounds were analyzed by dose–response and further probed with an intracellular macrophage assay. Scaffolds with potential additive effect with PAS are reported, opening interesting prospects for mechanism of action studies. We also report here evidence of a yet unknown bio-activation mechanism, involving activation of pyrido[1,2-a]pyrimidin-4-one (PP) derivatives through the Rv3087 protein.
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Affiliation(s)
- Jinyeong Heo
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Dahae Koh
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Minjeong Woo
- Tuberculosis Research Laboratory, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Doyoon Kwon
- Tuberculosis Research Laboratory, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | | | - Connor Wood
- Tuberculosis Research Laboratory, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Honggun Lee
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Kideok Kim
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Inhee Choi
- Medicinal Chemistry Platform, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Jichan Jang
- Molecular Mechanisms of Antibiotics, Division of Life Science, Research Institute of Life Science, Department of Bio & Medical Big Data (BK21 Four Program), Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Priscille Brodin
- University of Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, Lille, France
| | - David Shum
- Screening Discovery Platform, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea
| | - Vincent Delorme
- Tuberculosis Research Laboratory, Institut Pasteur Korea, Seongnam, Gyeonggi, 13488, Republic of Korea.
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Chanmol W, Siriyasatien P, Intakhan N. In vitro anti- Leishmania activity of 8-hydroxyquinoline and its synergistic effect with amphotericin B deoxycholate against Leishmania martiniquensis. PeerJ 2022; 10:e12813. [PMID: 35111411 PMCID: PMC8781311 DOI: 10.7717/peerj.12813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/29/2021] [Indexed: 01/10/2023] Open
Abstract
Leishmania (Mundinia) martiniquensis is responsible for visceral leishmaniasis in patients with no known underlying immunodeficiency, and visceral or disseminated cutaneous leishmaniasis in HIV-infected patients. The available anti-Leishmania drugs for treatment have limitations such as high toxicity and variable efficacy. To improve the therapeutic index of anti-Leishmania drugs, the search for a new drug or a new natural compound in combination therapy instead of using monotherapy to reduce drug side effect and have high efficacy is required. In this study, anti-Leishmania activity of 8-hydroxyquinoline (8HQN) and its synergistic effect with amphotericin B (AmB) against L. martiniquensis were evaluated in vitro for the first time. These results showed that 8HQN presented anti-Leishmania activity against L. martiniquensis with IC50 1.60 ± 0.28 and 1.56 ± 0.02 µg/mL for promastigotes and intracellular amastigotes, respectively. The selectivity index (SI) value of 8HQN was 79.84 for promastigotes and 82.40 for intracellular amastigotes, which highlight promising results for the use of 8HQN in the treatment of L. martiniquensis-infected host cells. Interestingly, four combinations of 8HQN and AmB provided synergistic effects for intracellular amastigotes and showed no toxic effects to host cells. These results provided information of using a combination therapy in treating this Leishmania species leads to further development of therapy and can be considered as an alternative treatment for leishmaniasis.
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Affiliation(s)
- Wetpisit Chanmol
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand,Research Excellence Center for Innovation and Health Product, Walailak University, Nakhon Si Thammarat, Thailand,Hematology and Transfusion Science Research Center (HTSRC), Walailak University, Nakhon Si Thammarat, Thailand
| | - Padet Siriyasatien
- Vector Biology and Vector Borne Disease Research Unit, Department of Parasitology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nuchpicha Intakhan
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand,Research Excellence Center for Innovation and Health Product, Walailak University, Nakhon Si Thammarat, Thailand,Hematology and Transfusion Science Research Center (HTSRC), Walailak University, Nakhon Si Thammarat, Thailand
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14
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Demonstration of N, N-Dimethyldithiocarbamate as a Copper-Dependent Antibiotic against Multiple Upper Respiratory Tract Pathogens. Microbiol Spectr 2021; 9:e0077821. [PMID: 34468162 PMCID: PMC8557878 DOI: 10.1128/spectrum.00778-21] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Transition metals are necessary cofactors and structural elements in living systems. Exposure to high concentrations of biologically important transition metals, such as zinc and copper, results in cell toxicity. At the infection site, the immune system deploys metal sorbent proteins (e.g., lactoferrin and calprotectin) to starve pathogens of necessary metals (such as iron), while phagocytes expose engulfed pathogens to high levels of other metals, such as copper and zinc. The opportunistic pathogen Streptococcus pneumoniae (the pneumococcus) encounters macrophages during initial and protracted infections. The pneumococcus employs a copper export pathway, which improves colonization and persistent infection of the nasopharynx and the upper respiratory tract. Because copper is tightly regulated in the host, we instead sought to leverage the localized power of nutritional immunity by identifying small molecules with copper-dependent toxicity (CDT) through a targeted screen of compounds for antibiotic efficacy. We chose to include dithiocarbamates, based on the copper synergy observed in other organisms with 1-(diethylthiocarbamoyldisulfanyl)-N,N-diethyl-methanethioamide (tetraethylthiuram disulfide, disulfiram). We observed CDT of some dithiocarbamates in S. pneumoniae. Only N,N-dimethyldithiocarbamate (DMDC) was consistently toxic across a range of concentrations with copper both in vitro and in vivo against the pneumococcus. We also observed various degrees of CDT in vitro using DMDC in Staphylococcus aureus, Coccidioides posadasii, and Schistosoma mansoni. Collectively, we demonstrate that the compound DMDC is a potent bactericidal compound against S. pneumoniae with antimicrobial efficacy against bacterial and fungal pathogens. IMPORTANCE With the rise of antibiotic resistance, approaches that add new antimicrobials to the current repertoire are vital. Here, we investigate putative and known copper ionophores in an attempt to intoxicate bacteria and use ionophore/copper synergy, and we ultimately find success with N,N-dimethyldithiocarbamate (DMDC). We show that DMDC has in vitro efficacy in a copper-dependent manner and kills pathogens across three different kingdoms, Streptococcus pneumoniae, Coccidioides posadasii, and Schistosoma mansoni, and in vivo efficacy against S. pneumoniae. As such, dithiocarbamates represent a new potential class of antimicrobials and thus warrant further mechanistic investigation.
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15
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Richards MN, Johnson GR, Lum JS, McDonald R, Salter WB, Simpson K, Stote RE, Owens JR. Investigating surface binding effects: antibacterial efficacy of bound 8-hydroxyquinoline against Staphylococcus aureus and Escherichia coli. J Appl Microbiol 2021; 131:2212-2222. [PMID: 33864329 DOI: 10.1111/jam.15105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/31/2021] [Accepted: 04/07/2021] [Indexed: 11/29/2022]
Abstract
AIMS To investigate the binding of the antimicrobial compound 8-hydroxyquinoline (8HQ) to a material interface and to determine whether immobilization affects the antibacterial efficacy. METHODS AND RESULTS The 8HQ derivative 5-carboxy-8-hydroxyquinoline (5C8HQ) was attached to silica beads through amide bond coupling at the carboxyl moiety of 5C8HQ. Attachment of 5C8HQ was confirmed using a combination of mass spectrometry, thermogravimetric analysis, colorimetric testing and Soxhlet extraction. Computational modelling results indicated that this substitution did not compromise the active sites on the molecule, whereas other positions on the ring system could potentially inhibit antimicrobial activity. The antibacterial effect of 8HQ and the 5C8HQ-modified silica complex against Escherichia coli 15597 (ATCC® 25922) and Staphylococcus aureus (ATCC 25923) was evaluated. CONCLUSIONS The test results show that the immobilized 8HQ continues to exhibit antibacterial activity, however, quantifying the efficacy compared to free 8HQ bears further investigation. The expected antibacterial mechanism requires that the metal chelation site of 8HQ be retained and available after attachment to a surface. The retention of antibacterial activity after surface bonding represents a novel mechanism of action not previously reported. SIGNIFICANCE AND IMPACT OF THE STUDY Recent changes in regulations due to environmental concerns prompted many companies and organizations to explore antimicrobial treatments that are chemically bound to the product. Chemically bonding biocidal compounds to a surface limits environmental release; however, molecular mechanisms that drive antibacterial activity when compounds are immobilized are limited. The results reported here demonstrate that the 8HQ reactive site retains antibacterial efficacy even after covalent attachment to a surface. This approach supersedes other antimicrobial treatments where the active component is gradually released from the material surface in order to elicit antimicrobial effects. This specific antibacterial activity of bound 8HQ represents a novel mechanism of action not previously reported, and a potential conduit to a new class of bound antimicrobial materials.
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Affiliation(s)
- M N Richards
- U.S. Department of the Army, Natick Soldier Systems Center, Natick, MA, USA
| | - G R Johnson
- ARCTOS Technology Solutions, Dayton, OH, USA.,Air Force Civil Engineer Center, AFCEC/CXAE, Tyndall Air Force Base, Panama City, FL, USA
| | - J S Lum
- U.S. Department of the Army, Natick Soldier Systems Center, Natick, MA, USA
| | - R McDonald
- ARCTOS Technology Solutions, Dayton, OH, USA.,Air Force Civil Engineer Center, AFCEC/CXAE, Tyndall Air Force Base, Panama City, FL, USA
| | - W B Salter
- ARCTOS Technology Solutions, Dayton, OH, USA.,Air Force Civil Engineer Center, AFCEC/CXAE, Tyndall Air Force Base, Panama City, FL, USA
| | - K Simpson
- ARCTOS Technology Solutions, Dayton, OH, USA.,Air Force Civil Engineer Center, AFCEC/CXAE, Tyndall Air Force Base, Panama City, FL, USA
| | - R E Stote
- U.S. Department of the Army, Natick Soldier Systems Center, Natick, MA, USA
| | - J R Owens
- Air Force Civil Engineer Center, AFCEC/CXAE, Tyndall Air Force Base, Panama City, FL, USA
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16
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Hofmann L, Hirsch M, Ruthstein S. Advances in Understanding of the Copper Homeostasis in Pseudomonas aeruginosa. Int J Mol Sci 2021; 22:2050. [PMID: 33669570 PMCID: PMC7922089 DOI: 10.3390/ijms22042050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/10/2021] [Accepted: 02/15/2021] [Indexed: 12/12/2022] Open
Abstract
Thirty-five thousand people die as a result of more than 2.8 million antibiotic-resistant infections in the United States of America per year. Pseudomonas aeruginosa (P. aeruginosa) is classified a serious threat, the second-highest threat category of the U.S. Department of Health and Human Services. Among others, the World Health Organization (WHO) encourages the discovery and development of novel antibiotic classes with new targets and mechanisms of action without cross-resistance to existing classes. To find potential new target sites in pathogenic bacteria, such as P. aeruginosa, it is inevitable to fully understand the molecular mechanism of homeostasis, metabolism, regulation, growth, and resistances thereof. P. aeruginosa maintains a sophisticated copper defense cascade comprising three stages, resembling those of public safety organizations. These stages include copper scavenging, first responder, and second responder. Similar mechanisms are found in numerous pathogens. Here we compare the copper-dependent transcription regulators cueR and copRS of Escherichia coli (E. coli) and P. aeruginosa. Further, phylogenetic analysis and structural modelling of mexPQ-opmE reveal that this efflux pump is unlikely to be involved in the copper export of P. aeruginosa. Altogether, we present current understandings of the copper homeostasis in P. aeruginosa and potential new target sites for antimicrobial agents or a combinatorial drug regimen in the fight against multidrug resistant pathogens.
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Affiliation(s)
| | | | - Sharon Ruthstein
- Institute of Nanotechnology and Advanced Materials & Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (L.H.); (M.H.)
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17
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Aycan T, Öztürk F, Demir S, Özdemir N, Paşaoğlu H. Cobalt(III) complex of substituted nalidixic acid: Synthesis, characterization (IR, UV, EPR), single crystal X-ray, antimicrobial activity, Hirshfeld surface analysis and molecular docking. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Joaquim AR, Reginatto P, Lopes MS, Bazana LCG, Gionbelli MP, de Cesare MA, Kaminski TFA, Teixeira ML, Abegg MA, Fuentefria AM, de Andrade SF. New 8-hydroxyquinoline derivatives highlight the potential of this class for treatment of fungal infections. NEW J CHEM 2021. [DOI: 10.1039/d0nj06188c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Compound 5h has interesting antifungal activity and a good toxicity profile and seems to act as an ion scavenger in fungi.
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Affiliation(s)
- Angélica Rocha Joaquim
- Pharmaceutical Synthesis Group (PHARSG), Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 – Azenha, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Paula Reginatto
- Programa de Pós-graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marcela Silva Lopes
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Luana Candice Genz Bazana
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mariana Pies Gionbelli
- Pharmaceutical Synthesis Group (PHARSG), Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 – Azenha, Porto Alegre, RS, 90610-000, Brazil
| | - Maycon Antonio de Cesare
- Pharmaceutical Synthesis Group (PHARSG), Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 – Azenha, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | - Mário Lettieri Teixeira
- Laboratório de Farmacologia, Instituto Federal Catarinense, Campus Concórdia, Concórdia, SC, Brazil
| | - Maxwel Adriano Abegg
- Instituto de Ciências Exatas e Tecnologia, Universidade Federal do Amazonas, Itacoatiara, AM, Brazil
| | - Alexandre Meneghello Fuentefria
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Programa de Pós-graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Saulo Fernandes de Andrade
- Pharmaceutical Synthesis Group (PHARSG), Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752 – Azenha, Porto Alegre, RS, 90610-000, Brazil
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Programa de Pós-graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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19
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Aycan T, Öztürk F, Doruk T, Demir S, Fidan M, Paşaoğlu H. Synthesis, structural, spectral and antimicrobial activity studies of copper-nalidixic acid complex with 1,10-phenanthroline: DFT and molecular docking. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 241:118639. [PMID: 32629397 DOI: 10.1016/j.saa.2020.118639] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/17/2020] [Accepted: 06/21/2020] [Indexed: 06/11/2023]
Abstract
The mix-ligand coordination compound, [Cu(Nal)(Phen)(H2O)].(Phen).ClO4.(H2O)2 (Nal= Monoanion of nalidixic acid and Phen = 1,10- Phenanthroline), was investigated by focusing on its supramolecular architecture. Structural properties of the complex were characterized by XRD, spectroscopic methods and elemental analysis. The complex has crystallized in the triclinic crystal system and P-1 space group. In the structure where the Cu (II) ion is in the center of symmetry, nalidixate anion and water molecule coordinated to Cu (II) metal through oxygen atoms while phen coordinated through nitrogen atoms. The monomer units are connected by hydrogen bonds to form supramolecular structures. The ground state molecular structure of the complex was optimized using DFT/B3LYP/LANL2DZ method, and compared with experimental X-ray geometry. The FT-IR study of the complex was carried out in the middle IR region focusing on the characteristic vibrations of the free ligands and the complex. Scaled calculated vibrational frequencies are compared with experimental values. The magnetic properties of the complex were investigated by electron paramagnetic resonance (EPR) spectroscopy. Further ultra-violet (UV)-visible spectral analysis was also performed to understand optical properties. The experimental UV-Vis data were associated with the calculated frontier molecular orbitals HOMO/LUMO and, molecular electrostatic potentials (MEP) are also investigated. Biological study of the complex against Bacillus subtilis, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, and Candida albicans showed very strong antibacterial activity with MIC values ranging from 128 μg/ml to 1 μg/ml concentration. The optimized complex is docked to the DNA Gyrase (3LPX) and gyrase tip IIA topoisomerase (3UC1).
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Affiliation(s)
- Tuğba Aycan
- Sinop University, Faculty of Arts and Sciences, Physics Department, Sinop, Turkey.
| | - Filiz Öztürk
- Ondokuz Mayıs University, Blacksea Advanced Technology Research and Application Center, Samsun, Turkey
| | - Tuğrul Doruk
- Ondokuz Mayıs University, Faculty of Arts and Sciences, Department of Microbiyology and Genetic, Samsun, Turkey
| | - Serkan Demir
- Giresun University, Faculty of Engineering, Department of Industrial Engineering, Giresun, Turkey
| | - Melek Fidan
- Atatürk University, Faculty of Arts and Sciences, Physics Department, Erzurum, Turkey
| | - Hümeyra Paşaoğlu
- Ondokuz Mayıs University, Faculty of Arts and Sciences, Physics Department, Samsun, Turkey
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20
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21
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A copper(II)-binding triazole derivative with ionophore properties is active against Candida spp. J Biol Inorg Chem 2020; 25:1117-1128. [DOI: 10.1007/s00775-020-01828-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/05/2020] [Indexed: 01/12/2023]
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22
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Krasnovskaya OO, Guk DA, Naumov AE, Nikitina VN, Semkina AS, Vlasova KY, Pokrovsky V, Ryabaya OO, Karshieva SS, Skvortsov DA, Zhirkina IV, Shafikov RR, Gorelkin PV, Vaneev AN, Erofeev AS, Mazur DM, Tafeenko VA, Pergushov VI, Melnikov MY, Soldatov MA, Shapovalov VV, Soldatov AV, Akasov RA, Gerasimov VM, Sakharov DA, Moiseeva AA, Zyk NV, Beloglazkina EK, Majouga AG. Novel Copper-Containing Cytotoxic Agents Based on 2-Thioxoimidazolones. J Med Chem 2020; 63:13031-13063. [PMID: 32985193 DOI: 10.1021/acs.jmedchem.0c01196] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A series of 73 ligands and 73 of their Cu+2 and Cu+1 copper complexes with different geometries, oxidation states of the metal, and redox activities were synthesized and characterized. The aim of the study was to establish the structure-activity relationship within a series of analogues with different substituents at the N(3) position, which govern the redox potentials of the Cu+2/Cu+1 redox couples, ROS generation ability, and intracellular accumulation. Possible cytotoxicity mechanisms, such as DNA damage, DNA intercalation, telomerase inhibition, and apoptosis induction, have been investigated. ROS formation in MCF-7 cells and three-dimensional (3D) spheroids was proven using the Pt-nanoelectrode. Drug accumulation and ROS formation at 40-60 μm spheroid depths were found to be the key factors for the drug efficacy in the 3D tumor model, governed by the Cu+2/Cu+1 redox potential. A nontoxic in vivo single-dose evaluation for two binuclear mixed-valence Cu+1/Cu+2 redox-active coordination compounds, 72k and 61k, was conducted.
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Affiliation(s)
- Olga O Krasnovskaya
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology MISIS, Leninskiy Prospect 4, Moscow 101000, Russia.,Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Dmitry A Guk
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Alexey E Naumov
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Vita N Nikitina
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Alevtina S Semkina
- Department of Medical Nanobiotechnologies, Pirogov Russian National Research Medical University, Ostrovityanova 1, Moscow 117997, Russia.,Department of Basic and Applied Neurobiology, Serbsky National Medical Research Center for Psychiatry and Narcology, Kropotkinskiy 23, Moscow 119991, Russia
| | - Kseniya Yu Vlasova
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Vadim Pokrovsky
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, Kashirskoe Highway 23, Moscow 115478, Russia.,People's Friendship University, Moscow, Russia, Miklukho-Maklaya 6, Moscow 117198, Russia
| | - Oksana O Ryabaya
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, Kashirskoe Highway 23, Moscow 115478, Russia
| | - Saida S Karshieva
- N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russian Federation, Kashirskoe Highway 23, Moscow 115478, Russia
| | - Dmitry A Skvortsov
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia.,Department of Biology and Biotechnologies, Higher School of Economics, Myasnitskaya 13, Moscow 101000, Russia
| | - Irina V Zhirkina
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Radik R Shafikov
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Petr V Gorelkin
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology MISIS, Leninskiy Prospect 4, Moscow 101000, Russia
| | - Alexander N Vaneev
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology MISIS, Leninskiy Prospect 4, Moscow 101000, Russia.,Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Alexander S Erofeev
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology MISIS, Leninskiy Prospect 4, Moscow 101000, Russia
| | - Dmitrii M Mazur
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Viktor A Tafeenko
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Vladimir I Pergushov
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Mikhail Ya Melnikov
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Mikhail A Soldatov
- The Smart Materials Research Institute Southern Federal University Sladkova, 178/24, Rostov-on-Don 344090, Russia
| | - Victor V Shapovalov
- The Smart Materials Research Institute Southern Federal University Sladkova, 178/24, Rostov-on-Don 344090, Russia
| | - Alexander V Soldatov
- The Smart Materials Research Institute Southern Federal University Sladkova, 178/24, Rostov-on-Don 344090, Russia
| | - Roman A Akasov
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology MISIS, Leninskiy Prospect 4, Moscow 101000, Russia.,I.M. Sechenov First Moscow State Medical University, Trubetskaya 8-2, Moscow 119991, Russia
| | - Vasily M Gerasimov
- Mendeleev University of Chemical Technology of Russia, Miusskaya Sq. 9, Moscow 125047, Russia
| | - Dmitry A Sakharov
- Mendeleev University of Chemical Technology of Russia, Miusskaya Sq. 9, Moscow 125047, Russia
| | - Anna A Moiseeva
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Nikolay V Zyk
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Elena K Beloglazkina
- Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia
| | - Alexander G Majouga
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology MISIS, Leninskiy Prospect 4, Moscow 101000, Russia.,Chemistry Department, Lomonosov Moscow State University, Leninskie Gory, 1/3, Moscow 119991, Russia.,Mendeleev University of Chemical Technology of Russia, Miusskaya Sq. 9, Moscow 125047, Russia
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23
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New Mn(II), Co(II), Ni(II) and Cu(II) homoleptic complexes with 6-chloro-5-7-dimethyl-4oxo-4H-chromene-3-carbaldehydes and its heteroleptic complexes with quinoline-8 ol: synthesis, characterization and antimicrobial activity. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04280-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Andrei A, Öztürk Y, Khalfaoui-Hassani B, Rauch J, Marckmann D, Trasnea PI, Daldal F, Koch HG. Cu Homeostasis in Bacteria: The Ins and Outs. MEMBRANES 2020; 10:E242. [PMID: 32962054 PMCID: PMC7558416 DOI: 10.3390/membranes10090242] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/16/2022]
Abstract
Copper (Cu) is an essential trace element for all living organisms and used as cofactor in key enzymes of important biological processes, such as aerobic respiration or superoxide dismutation. However, due to its toxicity, cells have developed elaborate mechanisms for Cu homeostasis, which balance Cu supply for cuproprotein biogenesis with the need to remove excess Cu. This review summarizes our current knowledge on bacterial Cu homeostasis with a focus on Gram-negative bacteria and describes the multiple strategies that bacteria use for uptake, storage and export of Cu. We furthermore describe general mechanistic principles that aid the bacterial response to toxic Cu concentrations and illustrate dedicated Cu relay systems that facilitate Cu delivery for cuproenzyme biogenesis. Progress in understanding how bacteria avoid Cu poisoning while maintaining a certain Cu quota for cell proliferation is of particular importance for microbial pathogens because Cu is utilized by the host immune system for attenuating pathogen survival in host cells.
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Affiliation(s)
- Andreea Andrei
- Institut für Biochemie und Molekularbiologie, ZBMZ, Medizinische Fakultät, Albert-Ludwigs Universität Freiburg; Stefan Meier Str. 17, 79104 Freiburg, Germany; (A.A.); (Y.O.); (J.R.); (D.M.)
- Fakultät für Biologie, Albert-Ludwigs Universität Freiburg; Schänzlestrasse 1, 79104 Freiburg, Germany
| | - Yavuz Öztürk
- Institut für Biochemie und Molekularbiologie, ZBMZ, Medizinische Fakultät, Albert-Ludwigs Universität Freiburg; Stefan Meier Str. 17, 79104 Freiburg, Germany; (A.A.); (Y.O.); (J.R.); (D.M.)
| | | | - Juna Rauch
- Institut für Biochemie und Molekularbiologie, ZBMZ, Medizinische Fakultät, Albert-Ludwigs Universität Freiburg; Stefan Meier Str. 17, 79104 Freiburg, Germany; (A.A.); (Y.O.); (J.R.); (D.M.)
| | - Dorian Marckmann
- Institut für Biochemie und Molekularbiologie, ZBMZ, Medizinische Fakultät, Albert-Ludwigs Universität Freiburg; Stefan Meier Str. 17, 79104 Freiburg, Germany; (A.A.); (Y.O.); (J.R.); (D.M.)
| | | | - Fevzi Daldal
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Hans-Georg Koch
- Institut für Biochemie und Molekularbiologie, ZBMZ, Medizinische Fakultät, Albert-Ludwigs Universität Freiburg; Stefan Meier Str. 17, 79104 Freiburg, Germany; (A.A.); (Y.O.); (J.R.); (D.M.)
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Loginova NV, Harbatsevich HI, Osipovich NP, Ksendzova GA, Koval’chuk TV, Polozov GI. Metal Complexes as Promising Agents for Biomedical Applications. Curr Med Chem 2020; 27:5213-5249. [DOI: 10.2174/0929867326666190417143533] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/02/2019] [Accepted: 03/29/2019] [Indexed: 12/24/2022]
Abstract
Background::
In this review article, a brief overview of novel metallotherapeutic agents
(with an emphasis on the complexes of essential biometals) promising for medical application is
presented. We have also focused on the recent work carried out by our research team, specifically
the development of redox-active antimicrobial complexes of sterically hindered diphenols with some
essential biometals (copper, zinc, nickel).
Results::
The complexes of essential metals (manganese, iron, cobalt, nickel, copper, zinc) described
in the review show diverse in vitro biological activities, ranging from antimicrobial and antiinflammatory
to antiproliferative and enzyme inhibitory. It is necessary to emphasize that the type of
organic ligands in these metal complexes seems to be responsible for their pharmacological
activities. In the last decades, there has been a significant interest in synthesis and biological
evaluation of metal complexes with redox-active ligands. A substantial step in the development of
these redox-active agents is the study of their physicochemical and biological properties, including
investigations in vitro of model enzyme systems, which can provide evidence on a plausible
mechanism underlying the pharmacological activity. When considering the peculiarities of the
pharmacological activity of the sterically hindered diphenol derivatives and their nickel(II),
copper(II) and zinc(II) complexes synthesized, we took into account the following: (i) all these
compounds are potential antioxidants and (ii) their antimicrobial activity possibly results from their
ability to affect the electron-transport chain.
Conclusion::
We obtained novel data demonstrating that the level of antibacterial and antifungal
activity in the series of the above-mentioned metal-based antimicrobials depends not only on the
nature of the phenolic ligands and complexing metal ions, but also on the lipophilicity and reducing
ability of the ligands and metal complexes, specifically regarding the potential biotargets of their
antimicrobial action – ferricytochrome c and the superoxide anion radical. The combination of
antibacterial, antifungal and antioxidant activity allows one to consider these compounds as
promising substances for developing therapeutic agents with a broad spectrum of activities.
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Affiliation(s)
| | | | - Nikolai P. Osipovich
- Research Institute for Physico-Chemical Problems of the Belarusian State University, Minsk, Belarus
| | - Galina A. Ksendzova
- Research Institute for Physico-Chemical Problems of the Belarusian State University, Minsk, Belarus
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26
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Yufanyi DM, Abbo HS, Titinchi SJ, Neville T. Platinum(II) and Ruthenium(II) complexes in medicine: Antimycobacterial and Anti-HIV activities. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213285] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Di Natale C, De Benedictis I, De Benedictis A, Marasco D. Metal-Peptide Complexes as Promising Antibiotics to Fight Emerging Drug Resistance: New Perspectives in Tuberculosis. Antibiotics (Basel) 2020; 9:antibiotics9060337. [PMID: 32570779 PMCID: PMC7344629 DOI: 10.3390/antibiotics9060337] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 12/21/2022] Open
Abstract
In metal-peptide interactions, cations form stable complexes through bonds with coordinating groups as side chains of amino acids. These compounds, among other things, exert a wide variety of antimicrobial activities through structural changes of peptides upon metal binding and redox chemistry. They exhibit different mechanisms of action (MOA), including the modification of DNA/RNA, protein and cell wall synthesis, permeabilization and modulation of gradients of cellular membranes. Nowadays, the large increase in antibiotic resistance represents a crucial problem to limit progression at the pandemic level of the diseases that seemed nearly eradicated, such as tuberculosis (Tb). Mycobacterium tuberculosis (Mtb) is intrinsically resistant to many antibiotics due to chromosomal mutations which can lead to the onset of novel strains. Consequently, the maximum pharmaceutical effort should be focused on the development of new therapeutic agents and antimicrobial peptides can represent a valuable option as a copious source of potential bioactive compounds. The introduction of a metal center can improve chemical diversity and hence specificity and bioavailability while, in turn, the coordination to peptides of metal complexes can protect them and enhance their poor water solubility and air stability: the optimization of these parameters is strictly required for drug prioritization and to obtain potent inhibitors of Mtb infections with novel MOAs. Here, we present a panoramic review of the most recent findings in the field of metal complex-peptide conjugates and their delivery systems with the potential pharmaceutical application as novel antibiotics in Mtb infections.
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Affiliation(s)
- Concetta Di Natale
- Department of Pharmacy, University of Naples “Federico II”, 80134 Napoli NA, Italy; (C.D.N.); (I.D.B.); (A.D.B.)
- Center for Advanced Biomaterial for Health Care (CABHC), Istituto Italiano di Tecnologia, 80125 Naples, Italy
- Interdisciplinary Research Centre on Biomaterials (CRIB) and Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Ilaria De Benedictis
- Department of Pharmacy, University of Naples “Federico II”, 80134 Napoli NA, Italy; (C.D.N.); (I.D.B.); (A.D.B.)
| | - Arianna De Benedictis
- Department of Pharmacy, University of Naples “Federico II”, 80134 Napoli NA, Italy; (C.D.N.); (I.D.B.); (A.D.B.)
| | - Daniela Marasco
- Department of Pharmacy, University of Naples “Federico II”, 80134 Napoli NA, Italy; (C.D.N.); (I.D.B.); (A.D.B.)
- Correspondence:
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Crawford CL, Dalecki AG, Perez MD, Schaaf K, Wolschendorf F, Kutsch O. A copper-dependent compound restores ampicillin sensitivity in multidrug-resistant Staphylococcus aureus. Sci Rep 2020; 10:8955. [PMID: 32488067 PMCID: PMC7265353 DOI: 10.1038/s41598-020-65978-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/09/2020] [Indexed: 12/11/2022] Open
Abstract
Multi-drug resistant Staphylococcus aureus, including methicillin-resistant S. aureus (MRSA), has become a worldwide, major health care problem. While initially restricted to clinical settings, drug resistant S. aureus is now one of the key causative agents of community-acquired infections. We have previously demonstrated that copper dependent inhibitors (CDIs), a class of antibiotics that are only active in the presence of copper ions, are effective bactericidal agents against MRSA. A second-generation CDI, APT-6K, exerted bactericidal activity at nanomolar concentrations. At sub-bactericidal concentrations, it effectively synergized with ampicillin to reverse drug resistance in multiple MRSA strains. APT-6K had a favorable therapeutic index when tested on eukaryotic cells (TI: > 30) and, unlike some previously reported CDIs, did not affect mitochondrial activity. These results further establish inhibitors that are activated by the binding of transition metal ions as a promising class of antibiotics, and for the first time, describe their ability to reverse existing drug resistance against clinically relevant antibiotics.
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Affiliation(s)
- Cameron L Crawford
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Alex G Dalecki
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mildred D Perez
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kaitlyn Schaaf
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Frank Wolschendorf
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Olaf Kutsch
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
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Krasnovskaya O, Naumov A, Guk D, Gorelkin P, Erofeev A, Beloglazkina E, Majouga A. Copper Coordination Compounds as Biologically Active Agents. Int J Mol Sci 2020; 21:E3965. [PMID: 32486510 PMCID: PMC7312030 DOI: 10.3390/ijms21113965] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/29/2020] [Accepted: 05/30/2020] [Indexed: 12/24/2022] Open
Abstract
Copper-containing coordination compounds attract wide attention due to the redox activity and biogenicity of copper ions, providing multiple pathways of biological activity. The pharmacological properties of metal complexes can be fine-tuned by varying the nature of the ligand and donor atoms. Copper-containing coordination compounds are effective antitumor agents, constituting a less expensive and safer alternative to classical platinum-containing chemotherapy, and are also effective as antimicrobial, antituberculosis, antimalarial, antifugal, and anti-inflammatory drugs. 64Сu-labeled coordination compounds are promising PET imaging agents for diagnosing malignant pathologies, including head and neck cancer, as well as the hallmark of Alzheimer's disease amyloid-β (Aβ). In this review article, we summarize different strategies for possible use of coordination compounds in the treatment and diagnosis of various diseases, and also various studies of the mechanisms of antitumor and antimicrobial action.
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Affiliation(s)
- Olga Krasnovskaya
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
| | - Alexey Naumov
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
| | - Dmitry Guk
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
| | - Peter Gorelkin
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
| | - Alexander Erofeev
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
| | - Elena Beloglazkina
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
| | - Alexander Majouga
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
- Mendeleev University of Chemical Technology of Russia, Miusskaya Ploshchad’ 9, 125047 Moscow, Russia
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Dalecki AG, Zorn KM, Clark AM, Ekins S, Narmore WT, Tower N, Rasmussen L, Bostwick R, Kutsch O, Wolschendorf F. High-throughput screening and Bayesian machine learning for copper-dependent inhibitors of Staphylococcus aureus. Metallomics 2020; 11:696-706. [PMID: 30839007 DOI: 10.1039/c8mt00342d] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
One potential source of new antibacterials is through probing existing chemical libraries for copper-dependent inhibitors (CDIs), i.e., molecules with antibiotic activity only in the presence of copper. Recently, our group demonstrated that previously unknown staphylococcal CDIs were frequently present in a small pilot screen. Here, we report the outcome of a larger industrial anti-staphylococcal screen consisting of 40 771 compounds assayed in parallel, both in standard and in copper-supplemented media. Ultimately, 483 had confirmed copper-dependent IC50 values under 50 μM. Sphere-exclusion clustering revealed that these hits were largely dominated by sulfur-containing motifs, including benzimidazole-2-thiones, thiadiazines, thiazoline formamides, triazino-benzimidazoles, and pyridinyl thieno-pyrimidines. Structure-activity relationship analysis of the pyridinyl thieno-pyrimidines generated multiple improved CDIs, with activity likely dependent on ligand/ion coordination. Molecular fingerprint-based Bayesian classification models were built using Discovery Studio and Assay Central, a new platform for sharing and distributing cheminformatic models in a portable format, based on open-source tools. Finally, we used the latter model to evaluate a library of FDA-approved drugs for copper-dependent activity in silico. Two anti-helminths, albendazole and thiabendazole, scored highly and are known to coordinate copper ions, further validating the model's applicability.
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Affiliation(s)
- Alex G Dalecki
- Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham, BBRB 562, 845 19th St S, Birmingham, AL 35294, USA.
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Savić-Gajić IM, Savić IM. Drug design strategies with metal-hydroxyquinoline complexes. Expert Opin Drug Discov 2019; 15:383-390. [DOI: 10.1080/17460441.2020.1702964] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Ivan M. Savić
- Faculty of Technology, University of Nis, Leskovac, Republic of Serbia
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Azizi-Lalabadi M, Alizadeh-Sani M, Khezerlou A, Mirzanajafi-Zanjani M, Zolfaghari H, Bagheri V, Divband B, Ehsani A. Nanoparticles and Zeolites: Antibacterial Effects and their Mechanism against Pathogens. Curr Pharm Biotechnol 2019; 20:1074-1086. [DOI: 10.2174/1573397115666190708120040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 01/21/2023]
Abstract
Nowadays, distribution and microorganism resistance against antimicrobial compounds
have caused crucial food safety problems. Hence, nanotechnology and zeolite are recognized as new
approaches to manage this problem due to their inherent antimicrobial activity. Different studies have
confirmed antimicrobial effects of Nano particles (NPs) (metal and metal oxide) and zeolite, by using
various techniques to determine antimicrobial mechanism. This review includes an overview of research
with the results of studies about antimicrobial mechanisms of nanoparticles and zeolite. Many
researches have shown that type, particle size and shape of NPs and zeolite are important factors showing
antimicrobial effectiveness. The use of NPs and zeolite as antimicrobial components especially in
food technology and medical application can be considered as prominent strategies to overcome pathogenic
microorganisms. Nevertheless, further studies are required to minimize the possible toxicity of
NPs in order to apply suitable alternatives for disinfectants and antibacterial agents in food applications.
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Affiliation(s)
- Maryam Azizi-Lalabadi
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahmood Alizadeh-Sani
- Food safety and hygiene division, Environmental Health Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Arezou Khezerlou
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mina Mirzanajafi-Zanjani
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajar Zolfaghari
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Bagheri
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. BOX 51666-16471, Tabriz, Iran
| | - Baharak Divband
- Inorganic Chemistry Department, Faculty of Chemistry, University of Tabriz, C.P. 51664 Tabriz, Iran
| | - Ali Ehsani
- Nutrition Research Center, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Totten AH, Crawford CL, Dalecki AG, Xiao L, Wolschendorf F, Atkinson TP. Differential Susceptibility of Mycoplasma and Ureaplasma Species to Compound-Enhanced Copper Toxicity. Front Microbiol 2019; 10:1720. [PMID: 31417517 PMCID: PMC6682632 DOI: 10.3389/fmicb.2019.01720] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/12/2019] [Indexed: 12/04/2022] Open
Abstract
Rationale Mycoplasmas represent important etiologic agents of many human diseases. Due to increasing antimicrobial resistance and slow rate of novel discovery, unconventional methods of drug discovery are necessary. Copper ions are utilized in host microbial killing, and bacteria must regulate intracellular Cu concentrations to avoid toxicity. We hypothesized that human mollicutes may have susceptibility to Cu-induced toxicity, and compounds that augment copper-dependent killing. Methods Mycoplasma pneumoniae (Mpn), Ureaplasma parvum (Up), Ureaplasma urealyticum (Uu), and Mycoplasma hominis (Mh) were exposed to CuSO4 to determine minimal inhibitory concentrations (MICs). Once inhibitory concentrations had been determined, bacteria were treated with an FDA-approved drug disulfiram (DSF), glyoxal bis(4-methyl-3-thiosemicarbazone) (GTSM), and 2,9-dimethyl-1,10-phenanthroline (neocuproine), with or without Cu2+, to determine compound MICs. Results Ureaplasma species and Mh were able to tolerate 30–60 μM CuSO4, while Mpn tolerated over 10-fold higher concentrations (>1 mM). GTSM inhibited growth of all four organisms, but was unaffected by Cu2+ addition. Inhibition by GTSM was reduced by addition of the cell-impermeant Cu chelator, bathocuproine disulfonate (BCS). Neocuproine exhibited Cu-dependent growth inhibition of all organisms. DSF exhibited Cu-dependent growth inhibition against Mh at low micromolar concentrations, and at intermediate concentrations for Mpn. Conclusion MICs for CuSO4 differ widely among human mollicutes, with higher MICs for Mpn compared to Mh, Uu, and Up. DSF and Neocuproine exhibit Cu-dependent inhibition of mollicutes with copper concentrations between 25 and 50 μM. GTSM has copper-dependent anti-microbial activity at low levels of copper. Drug enhanced copper toxicity is a promising avenue for novel therapeutic development research with Mycoplasma and Ureaplasma species.
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Affiliation(s)
- Arthur H Totten
- Department of Pediatrics, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Cameron L Crawford
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Alex G Dalecki
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Li Xiao
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Frank Wolschendorf
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Thomas P Atkinson
- Department of Pediatrics, The University of Alabama at Birmingham, Birmingham, AL, United States
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Bactericidal Disruption of Magnesium Metallostasis in Mycobacterium tuberculosis Is Counteracted by Mutations in the Metal Ion Transporter CorA. mBio 2019; 10:mBio.01405-19. [PMID: 31289182 PMCID: PMC6747715 DOI: 10.1128/mbio.01405-19] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Antimycobacterial agents might shorten the course of treatment by reducing the number of phenotypically tolerant bacteria if they could kill M. tuberculosis in diverse metabolic states. Here we report two chemically disparate classes of agents that kill M. tuberculosis both when it is replicating and when it is not. Under replicating conditions, the tricyclic 4-hydroxyquinolines and a barbituric acid analogue deplete intrabacterial magnesium as a mechanism of action, and for both compounds, mutations in CorA, a putative Mg2+/Co2+ transporter, conferred resistance to the compounds when M. tuberculosis was under replicating conditions but not under nonreplicating conditions, illustrating that a given compound can kill M. tuberculosis in different metabolic states by disparate mechanisms. Targeting magnesium metallostasis represents a previously undescribed antimycobacterial mode of action that might cripple M. tuberculosis in a Mg2+-deficient intraphagosomal environment of macrophages. A defining characteristic of treating tuberculosis is the need for prolonged administration of multiple drugs. This may be due in part to subpopulations of slowly replicating or nonreplicating Mycobacterium tuberculosis bacilli exhibiting phenotypic tolerance to most antibiotics in the standard treatment regimen. Confounding this problem is the increasing incidence of heritable multidrug-resistant M. tuberculosis. A search for new antimycobacterial chemical scaffolds that can kill phenotypically drug-tolerant mycobacteria uncovered tricyclic 4-hydroxyquinolines and a barbituric acid derivative with mycobactericidal activity against both replicating and nonreplicating M. tuberculosis. Both families of compounds depleted M. tuberculosis of intrabacterial magnesium. Complete or partial resistance to both chemotypes arose from mutations in the putative mycobacterial Mg2+/Co2+ ion channel, CorA. Excess extracellular Mg2+, but not other divalent cations, diminished the compounds’ cidality against replicating M. tuberculosis. These findings establish depletion of intrabacterial magnesium as an antimicrobial mechanism of action and show that M. tuberculosis magnesium homeostasis is vulnerable to disruption by structurally diverse, nonchelating, drug-like compounds.
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Odingo JO, Early JV, Smith J, Johnson J, Bailey MA, Files M, Guzman J, Ollinger J, Korkegian A, Kumar A, Ovechkina Y, Parish T. 8-Hydroxyquinolines are bactericidal against Mycobacterium tuberculosis. Drug Dev Res 2019; 80:566-572. [PMID: 30893501 PMCID: PMC6767403 DOI: 10.1002/ddr.21531] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/21/2019] [Accepted: 03/05/2019] [Indexed: 12/19/2022]
Abstract
There is an urgent need for new treatments effective against Mycobacterium tuberculosis, the causative agent of tuberculosis. The 8-hydroxyquinoline series is a privileged scaffold with anticancer, antifungal, and antibacterial activities. We conducted a structure-activity relationship study of the series regarding its antitubercular activity using 26 analogs. The 8-hydroxyquinolines showed good activity against M. tuberculosis, with minimum inhibitory concentrations (MIC90) of <5 μM for some analogs. Small substitutions at C5 resulted in the most potent activity. Substitutions at C2 generally decreased potency, although a sub-family of 2-styryl-substituted analogs retained activity. Representative compounds demonstrated bactericidal activity against replicating M. tuberculosis with >4 log kill at 10× MIC over 14 days. The majority of the compounds demonstrated cytotoxicity (IC50 of <100 μM). Further development of this series as antitubercular agents should address the cytotoxicity liability. However, the 8-hydroxyquinoline series represents a useful tool for chemical genomics to identify novel targets in M. tuberculosis.
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Affiliation(s)
- Joshua O Odingo
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Julie V Early
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Jake Smith
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - James Johnson
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Mai A Bailey
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Megan Files
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Junitta Guzman
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Juliane Ollinger
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Aaron Korkegian
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Anuradha Kumar
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Yulia Ovechkina
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
| | - Tanya Parish
- TB Discovery Research, Infectious Disease Research Institute, Seattle, Washington
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Group A Streptococcus co-ordinates manganese import and iron efflux in response to hydrogen peroxide stress. Biochem J 2019; 476:595-611. [PMID: 30670571 DOI: 10.1042/bcj20180902] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 01/08/2023]
Abstract
Bacterial pathogens encounter a variety of adverse physiological conditions during infection, including metal starvation, metal overload and oxidative stress. Here, we demonstrate that group A Streptococcus (GAS) utilises Mn(II) import via MtsABC during conditions of hydrogen peroxide stress to optimally metallate the superoxide dismutase, SodA, with Mn. MtsABC expression is controlled by the DtxR family metalloregulator MtsR, which also regulates the expression of Fe uptake systems in GAS. Our results indicate that the SodA in GAS requires Mn for full activity and has lower activity when it contains Fe. As a consequence, under conditions of hydrogen peroxide stress where Fe is elevated, we observed that the PerR-regulated Fe(II) efflux system PmtA was required to reduce intracellular Fe, thus protecting SodA from becoming mismetallated. Our findings demonstrate the co-ordinate action of MtsR-regulated Mn(II) import by MtsABC and PerR-regulated Fe(II) efflux by PmtA to ensure appropriate Mn(II) metallation of SodA for optimal superoxide dismutase function.
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Crawford CL, Dalecki AG, Narmore WT, Hoff J, Hargett AA, Renfrow MB, Zhang M, Kalubowilage M, Bossmann SH, Queern SL, Lapi SE, Hunter RN, Bao D, Augelli-Szafran CE, Kutsch O, Wolschendorf F. Pyrazolopyrimidinones, a novel class of copper-dependent bactericidal antibiotics against multi-drug resistant S. aureus. Metallomics 2019; 11:784-798. [DOI: 10.1039/c8mt00316e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Pyrazolopyrimidinones traffic copper into S. aureus, depleting ATP and altering essential ion concentrations, resulting in the death of the bacteria.
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Affiliation(s)
| | - Alex G. Dalecki
- Department of Medicine
- University of Alabama at Birmingham
- Birmingham
- USA
| | | | - Jessica Hoff
- Department of Medicine
- University of Alabama at Birmingham
- Birmingham
- USA
| | - Audra A. Hargett
- Department of Biochemistry and Molecular Genetics
- University of Alabama at Birmingham
- Birmingham
- USA
| | - Matthew B. Renfrow
- Department of Biochemistry and Molecular Genetics
- University of Alabama at Birmingham
- Birmingham
- USA
| | - Man Zhang
- Department of Chemistry
- Kansas State University
- Manhattan
- USA
| | | | | | - Stacy L. Queern
- Department of Radiology
- University of Alabama at Birmingham
- Birmingham
- USA
- Department of Chemistry
| | - Suzanne E. Lapi
- Department of Radiology
- University of Alabama at Birmingham
- Birmingham
- USA
- Department of Chemistry
| | - Robert N. Hunter
- Department of Chemistry
- Drug Discovery Division
- Southern Research
- Birmingham
- USA
| | - Donghui Bao
- Department of Chemistry
- Drug Discovery Division
- Southern Research
- Birmingham
- USA
| | | | - Olaf Kutsch
- Department of Medicine
- University of Alabama at Birmingham
- Birmingham
- USA
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de Carvalho AB, de Souza ÍP, de Andrade LM, Binatti I, Pedroso EF, Krambrock K, Oliveira WX, Pereira-Maia EC, Silva-Caldeira PP. Novel copper(II) coordination polymer containing the drugs nalidixic acid and 8-hydroxyquinoline: Evaluation of the structural, magnetic, electronic, and antitumor properties. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.09.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Libardo MDJ, de la Fuente-Nuñez C, Anand K, Krishnamoorthy G, Kaiser P, Pringle SC, Dietz C, Pierce S, Smith MB, Barczak A, Kaufmann SHE, Singh A, Angeles-Boza AM. Phagosomal Copper-Promoted Oxidative Attack on Intracellular Mycobacterium tuberculosis. ACS Infect Dis 2018; 4:1623-1634. [PMID: 30141623 DOI: 10.1021/acsinfecdis.8b00171] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Copper (Cu) ions are critical in controlling bacterial infections, and successful pathogens like Mycobacterium tuberculosis (Mtb) possess multiple Cu resistance mechanisms. We report, as proof of concept, that a novel Cu hypersensitivity phenotype can be generated in mycobacteria, including Mtb, through a peptide, DAB-10, that is able to form reactive oxygen species (ROS) following Cu-binding. DAB-10 induces intramycobacterial oxidative stress in a Cu-dependent manner in vitro and during infection. DAB-10 penetrates murine macrophages and encounters intracellular mycobacteria. Significant intracellular Cu-dependent protection was observed when Mtb-infected macrophages were treated with DAB-10 alongside a cell-permeable Cu chelator. Treatment with the Cu chelator reversed the intramycobacterial oxidative shift induced by DAB-10. We conclude that DAB-10 utilizes the pool of phagosomal Cu ions in the host-Mtb interface to augment the mycobactericidal activity of macrophages while simultaneously exploiting the susceptibility of Mtb to ROS. DAB-10 serves as a model with which to develop next-generation, multifunctional antimicrobials.
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Affiliation(s)
- M. Daben J. Libardo
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Cesar de la Fuente-Nuñez
- Synthetic Biology Group, MIT Synthetic Biology Center, Department of Biological Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 21 Ames Street, Cambridge, Massachusetts 02139, United States
- Research Laboratory of Electronics, Massachusetts Institute of Technology, 50 Vassar Street, Cambridge, Massachusetts 02139, United States
- The Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, Massachusetts 02139, United States
| | - Kushi Anand
- Department of Microbiology and Cell Biology, Center for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Gopinath Krishnamoorthy
- Department of Immunology, Max Planck Institute for Infection Biology, Virchowweg 12, Berlin 10117, Germany
| | - Peggy Kaiser
- Department of Immunology, Max Planck Institute for Infection Biology, Virchowweg 12, Berlin 10117, Germany
| | - Stephanie C. Pringle
- The Ragon Institute of Harvard, MIT, and Massachusetts General Hospital, 400 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Christopher Dietz
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Scott Pierce
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Michael B. Smith
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
| | - Amy Barczak
- The Ragon Institute of Harvard, MIT, and Massachusetts General Hospital, 400 Technology Square, Cambridge, Massachusetts 02139, United States
- Division of Infectious Disease, Massachusetts General Hospital, 55 Fruit Street, Boston, Massachusetts 02114, United States
- Department of Medicine, Harvard Medical School, 25 Shattuck Street, Boston, Massachusetts 02115, United States
| | - Stefan H. E. Kaufmann
- Department of Immunology, Max Planck Institute for Infection Biology, Virchowweg 12, Berlin 10117, Germany
| | - Amit Singh
- Department of Microbiology and Cell Biology, Center for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Alfredo M. Angeles-Boza
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Storrs, Connecticut 06269, United States
- Institute of Materials Science, University of Connecticut, 97 N. Eagleville Road, Storrs, Connecticut 06269, United States
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40
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Nanoparticles and their antimicrobial properties against pathogens including bacteria, fungi, parasites and viruses. Microb Pathog 2018; 123:505-526. [DOI: 10.1016/j.micpath.2018.08.008] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 07/15/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022]
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41
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Wehbe M, Leung AWY, Abrams MJ, Orvig C, Bally MB. A Perspective - can copper complexes be developed as a novel class of therapeutics? Dalton Trans 2018; 46:10758-10773. [PMID: 28702645 DOI: 10.1039/c7dt01955f] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Although copper-ligand complexes appear to be promising as a new class of therapeutics, other than the family of copper(ii) coordination compounds referred to as casiopeínas these compounds have yet to reach the clinic for human use. The pharmaceutical challenges associated with developing copper-based therapeutics will be presented in this article along with a discussion of the potential for high-throughput chemistry, computer-aided drug design, and nanotechnology to address the development of this important class of drug candidates.
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Affiliation(s)
- Mohamed Wehbe
- Experimental Therapeutics, British Columbia Cancer Agency, 675 West 10th Avenue, Vancouver, BC V5Z 1L3, Canada.
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42
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Marsh JW, Djoko KY, McEwan AG, Huston WM. Copper(II)-bis(thiosemicarbazonato) complexes as anti-chlamydial agents. Pathog Dis 2018; 75:4033033. [PMID: 28830076 DOI: 10.1093/femspd/ftx084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 07/20/2017] [Indexed: 11/14/2022] Open
Abstract
Lipophilic copper (Cu)-containing complexes have shown promising antibacterial activity against a range of bacterial pathogens. To examine the susceptibility of the intracellular human pathogen Chlamydia trachomatis to copper complexes containing bis(thiosemicarbazone) ligands [Cu(btsc)], we tested the in vitro effect of CuII-diacetyl- and CuII-glyoxal-bis[N(4)-methylthiosemicarbazonato] (Cu(atsm) and Cu(gtsm), respectively) on C. trachomatis. Cu(atsm) and to a greater extent, Cu(gtsm), prevented the formation of infectious chlamydial progeny. Impacts on host cell viability and respiration were also observed in addition to the Chlamydia impacts. This work suggests that copper-based complexes may represent a new lead approach for future development of new therapeutics against chlamydial infections, although host cell impacts need to be fully explored.
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Affiliation(s)
- James W Marsh
- The iThree Institute, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Karrera Y Djoko
- School of Chemistry and Molecular Biosciences and Australian Centre for Infectious Disease Research, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Alastair G McEwan
- School of Chemistry and Molecular Biosciences and Australian Centre for Infectious Disease Research, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Wilhelmina M Huston
- School of Life Sciences, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
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43
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Salina EG, Huszár S, Zemanová J, Keruchenko J, Riabova O, Kazakova E, Grigorov A, Azhikina T, Kaprelyants A, Mikušová K, Makarov V. Copper-related toxicity in replicating and dormantMycobacterium tuberculosiscaused by 1-hydroxy-5-R-pyridine-2(1H)-thiones. Metallomics 2018; 10:992-1002. [DOI: 10.1039/c8mt00067k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
1-Hydroxy-5-R-pyridine-2(1H)-thiones are novel copper-dependentM. tuberculosisinhibitors that provide intracellular accumulation of toxic concentrations of copper.
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Affiliation(s)
- Elena G. Salina
- Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
| | - Stanislav Huszár
- Comenius University in Bratislava
- Faculty of Natural Sciences
- Department of Biochemistry
- 84215 Bratislava
- Slovak Republic
| | - Júlia Zemanová
- Comenius University in Bratislava
- Faculty of Natural Sciences
- Department of Biochemistry
- 84215 Bratislava
- Slovak Republic
| | - Jan Keruchenko
- Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
| | - Olga Riabova
- Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
| | - Elena Kazakova
- Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
| | | | - Tatyana Azhikina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry
- Russian Academy of Sciences
- Moscow
- Russian Federation
| | - Arseny Kaprelyants
- Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
| | - Katarína Mikušová
- Comenius University in Bratislava
- Faculty of Natural Sciences
- Department of Biochemistry
- 84215 Bratislava
- Slovak Republic
| | - Vadim Makarov
- Bach Institute of Biochemistry
- Research Center of Biotechnology of the Russian Academy of Sciences
- Moscow
- Russia
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44
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Manning TJ, Wilkerson K, Holder T, Bartley AC, Jackson C, Plummer S, Phillips D, Krajewski L, Wylie G. Pharmacokinetic studies of a three-component complex that repurposes the front line antibiotic isoniazid against Mycobacterium tuberculosis. Tuberculosis (Edinb) 2017; 107:149-155. [PMID: 29050764 DOI: 10.1016/j.tube.2017.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/23/2017] [Accepted: 08/30/2017] [Indexed: 12/15/2022]
Abstract
The frontline tuberculosis (Tb) antibiotic isoniazid has been repurposed using a three component complex aimed at increasing the delivery efficiency and adding new avenues to its mechanism of action. This study focuses on pharmacokinetic studies of the isoniazid-sucrose-copper (II)-PEG-3350 complex. The assays include the Plasma Protein Binding Assay (85.8%), Caco-2 Permeability Assay (B→APapp, 0.13 × 10-6 cm/s), Cytochrome P450 Inhibition Assay (i.e. CYP2B6, IC50 = 7.26 μM), In vitro microsomal Stability Assay (t1/2 NADPH-Dependent > 240 min), and HepG2 Cytotoxicity (no toxicity). The National Cancer Institute's 60 cell line panel is used to measure activity against cancer cells. The percent growth values averaged over all 60 cell lines indicates the complex has no anti-cancer activity, which also suggests a lack of general toxicity. It also provides data for the complexes specificity against Mycobacterium tuberculosis.
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Affiliation(s)
- Thomas J Manning
- Chemistry Department, Valdosta State University, Valdosta, GA 31698, USA.
| | - Kyle Wilkerson
- Chemistry Department, Valdosta State University, Valdosta, GA 31698, USA
| | - Taylor Holder
- Chemistry Department, Valdosta State University, Valdosta, GA 31698, USA
| | | | - Chelsea Jackson
- Chemistry Department, Valdosta State University, Valdosta, GA 31698, USA
| | - Sydney Plummer
- Chemistry Department, Valdosta State University, Valdosta, GA 31698, USA
| | - Dennis Phillips
- PAMS Facility, Chemistry, University of Georgia, Athens, GA, USA
| | - Logan Krajewski
- Fourier Transform Ion Cyclotron Resonance (FT-ICR) Facility, National High Field Magnet Lab, Tallahassee, FL, USA
| | - Greg Wylie
- NMR Lab, Chemistry Department, Texas A&M University, College Station, TX, USA
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45
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Nathan C. Kunkel Lecture: Fundamental immunodeficiency and its correction. J Exp Med 2017; 214:2175-2191. [PMID: 28701368 PMCID: PMC5551579 DOI: 10.1084/jem.20170637] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 06/27/2017] [Accepted: 06/27/2017] [Indexed: 02/05/2023] Open
Abstract
"Fundamental immunodeficiency" is the inability of the encoded immune system to protect an otherwise healthy host from every infection that could threaten its life. In contrast to primary immunodeficiencies, fundamental immunodeficiency is not rare but nearly universal. It results not from variation in a given host gene but from the rate and extent of variation in the genes of other organisms. The remedy for fundamental immunodeficiency is "adopted immunity," not to be confused with adaptive or adoptive immunity. Adopted immunity arises from four critical societal contributions to the survival of the human species: sanitation, nutrition, vaccines, and antimicrobial agents. Immunologists have a great deal to contribute to the development of vaccines and antimicrobial agents, but they have focused chiefly on vaccines, and vaccinology is thriving. In contrast, the effect of antimicrobial agents in adopted immunity, although fundamental, is fragile and failing. Immunologists can aid the development of sorely needed antimicrobial agents, and the study of antimicrobial agents can help immunologists discover targets and mechanisms of host immunity.
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Affiliation(s)
- Carl Nathan
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY
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46
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Dalecki AG, Crawford CL, Wolschendorf F. Copper and Antibiotics: Discovery, Modes of Action, and Opportunities for Medicinal Applications. Adv Microb Physiol 2017; 70:193-260. [PMID: 28528648 DOI: 10.1016/bs.ampbs.2017.01.007] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Copper is a ubiquitous element in the environment as well as living organisms, with its redox capabilities and complexation potential making it indispensable for many cellular functions. However, these same properties can be highly detrimental to prokaryotes and eukaryotes when not properly controlled, damaging many biomolecules including DNA, lipids, and proteins. To restrict free copper concentrations, all bacteria have developed mechanisms of resistance, sequestering and effluxing labile copper to minimize its deleterious effects. This weakness is actively exploited by phagocytes, which utilize a copper burst to destroy pathogens. Though administration of free copper is an unreasonable therapeutic antimicrobial itself, due to insufficient selectivity between host and pathogen, small-molecule ligands may provide an opportunity for therapeutic mimicry of the immune system. By modulating cellular entry, complex stability, resistance evasion, and target selectivity, ligand/metal coordination complexes can synergistically result in high levels of antibacterial activity. Several established therapeutic drugs, such as disulfiram and pyrithione, display remarkable copper-dependent inhibitory activity. These findings have led to development of new drug discovery techniques, using copper ions as the focal point. High-throughput screens for copper-dependent inhibitors against Mycobacterium tuberculosis and Staphylococcus aureus uncovered several new compounds, including a new class of inhibitors, the NNSNs. In this review, we highlight the microbial biology of copper, its antibacterial activities, and mechanisms to discover new inhibitors that synergize with copper.
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Affiliation(s)
- Alex G Dalecki
- The University of Alabama at Birmingham, Birmingham, AL, United States
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47
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Turner AG, Ong CLY, Walker MJ, Djoko KY, McEwan AG. Transition Metal Homeostasis in Streptococcus pyogenes and Streptococcus pneumoniae. Adv Microb Physiol 2017; 70:123-191. [PMID: 28528647 DOI: 10.1016/bs.ampbs.2017.01.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Trace metals such as Fe, Mn, Zn and Cu are essential for various biological functions including proper innate immune function. The host immune system has complicated and coordinated mechanisms in place to either starve and/or overload invading pathogens with various metals to combat the infection. Here, we discuss the roles of Fe, Mn and Zn in terms of nutritional immunity, and also the roles of Cu and Zn in metal overload in relation to the physiology and pathogenesis of two human streptococcal species, Streptococcus pneumoniae and Streptococcus pyogenes. S. pneumoniae is a major human pathogen that is carried asymptomatically in the nasopharynx by up to 70% of the population; however, transition to internal sites can cause a range of diseases such as pneumonia, otitis media, meningitis and bacteraemia. S. pyogenes is a human pathogen responsible for diseases ranging from pharyngitis and impetigo, to severe invasive infections. Both species have overlapping capacity with respect to metal acquisition, export and regulation and how metal homeostasis relates to their virulence and ability to invade and survive within the host. It is becoming more apparent that metals have an important role to play in the control of infection, and with further investigations, it could lead to the potential use of metals in novel antimicrobial therapies.
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Affiliation(s)
- Andrew G Turner
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Cheryl-Lynn Y Ong
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Mark J Walker
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Karrera Y Djoko
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia
| | - Alastair G McEwan
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia.
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48
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Sepehri Z, Mirzaei N, Sargazi A, Sargazi A, Mishkar AP, Kiani Z, Oskoee HO, Arefi D, Ghavami S. Essential and toxic metals in serum of individuals with active pulmonary tuberculosis in an endemic region. J Clin Tuberc Other Mycobact Dis 2017; 6:8-13. [PMID: 31723693 PMCID: PMC6850246 DOI: 10.1016/j.jctube.2017.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 01/21/2017] [Indexed: 12/02/2022] Open
Abstract
Trace elements play an important role in tuberculosis infection because their deficiencies can be associated with impaired immunity. Blood samples were collected from a total of 320 active pulmonary tuberculosis patients and healthy individuals. The serum concentrations of Zinc, Iron, Copper, Calcium, lead, Arsenic and Selenium were analyzed by atomic absorption spectrometry. The levels of trace elements were measured after 2, 4 and 6 months of anti-TB treatment initiation in TB infected groups. Compared to the control group, the concentrations of Zinc, Selenium, and Iron were significantly lower (P < 0.001) in tuberculosis patients; however, that of Arsenic, Lead, and copper was significantly higher (P < 0.001) in the serum of patients. Cu/Zn and Cu/Se ratios were also significantly higher (P < 0.001) in TB patients compared to the control group. In addition, serum concentration calcium was similar in both TB patients and healthy controls. Our results indicated that trace elements concentrations in tuberculosis patients are related to each element role in immune system. Wherever the element is essential for the pathogenesis of bacteria, its concentration will remain low; and contrariwise, when the element is toxic for the bacteria, its level will be regulated up to provide a perfect condition for bacterial growth.
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Affiliation(s)
- Zahra Sepehri
- Department of Internal Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Nima Mirzaei
- Zabol University of Medical Sciences, Zabol, Iran
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 3P4, Canada
| | - Aliyeh Sargazi
- Medical Student, Student Research Committee, Zabol University of Medical Sciences, Zabol, Iran
| | - Alireza Sargazi
- Medical Student, Student Research Committee, Zabol University of Medical Sciences, Zabol, Iran
| | | | - Zohre Kiani
- Medical Student, Student Research Committee, Zabol University of Medical Sciences, Zabol, Iran
- Medical Student, Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamid Owaysee Oskoee
- Department of infectious diseases, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Donya Arefi
- Zabol University of Medical Sciences, Zabol, Iran
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, R3E 3P4, Canada
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49
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Gold B, Nathan C. Targeting Phenotypically Tolerant Mycobacterium tuberculosis. Microbiol Spectr 2017; 5:10.1128/microbiolspec.TBTB2-0031-2016. [PMID: 28233509 PMCID: PMC5367488 DOI: 10.1128/microbiolspec.tbtb2-0031-2016] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Indexed: 01/08/2023] Open
Abstract
While the immune system is credited with averting tuberculosis in billions of individuals exposed to Mycobacterium tuberculosis, the immune system is also culpable for tempering the ability of antibiotics to deliver swift and durable cure of disease. In individuals afflicted with tuberculosis, host immunity produces diverse microenvironmental niches that support suboptimal growth, or complete growth arrest, of M. tuberculosis. The physiological state of nonreplication in bacteria is associated with phenotypic drug tolerance. Many of these host microenvironments, when modeled in vitro by carbon starvation, complete nutrient starvation, stationary phase, acidic pH, reactive nitrogen intermediates, hypoxia, biofilms, and withholding streptomycin from the streptomycin-addicted strain SS18b, render M. tuberculosis profoundly tolerant to many of the antibiotics that are given to tuberculosis patients in clinical settings. Targeting nonreplicating persisters is anticipated to reduce the duration of antibiotic treatment and rate of posttreatment relapse. Some promising drugs to treat tuberculosis, such as rifampin and bedaquiline, only kill nonreplicating M. tuberculosisin vitro at concentrations far greater than their minimal inhibitory concentrations against replicating bacilli. There is an urgent demand to identify which of the currently used antibiotics, and which of the molecules in academic and corporate screening collections, have potent bactericidal action on nonreplicating M. tuberculosis. With this goal, we review methods of high-throughput screening to target nonreplicating M. tuberculosis and methods to progress candidate molecules. A classification based on structures and putative targets of molecules that have been reported to kill nonreplicating M. tuberculosis revealed a rich diversity in pharmacophores.
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Affiliation(s)
- Ben Gold
- Department of Microbiology & Immunology, Weill Cornell Medical College, New York, NY, 10065
| | - Carl Nathan
- Department of Microbiology & Immunology, Weill Cornell Medical College, New York, NY, 10065
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