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Sheng M, Jia H, Zhang G, Zeng L, Zhang T, Long Y, Lan J, Hu Z, Zeng Z, Wang B, Liu H. Siderophore Production by Rhizosphere Biological Control Bacteria Brevibacillus brevis GZDF3 of Pinellia ternata and Its Antifungal Effects on Candida albicans. J Microbiol Biotechnol 2020; 30:689-699. [PMID: 32482934 PMCID: PMC9728291 DOI: 10.4014/jmb.1910.10066] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/18/2020] [Indexed: 12/15/2022]
Abstract
Brevibacillus brevis GZDF3 is a gram-positive, plant growth-promoting rhizosphere bacterium (PGPR) isolated from the rhizosphere soil of Pinellia ternata (an important herb in traditional Chinese medicine). The GZDF3 strain produces certain active compounds, such as siderophores, which are the final metabolite products of non-ribosomal peptide synthetase (NRPS) and independent non-ribosomal peptide synthetase (NIS) activity. With the present study, we attempted to investigate the siderophore production characteristics and conditions of Bacillus sp. GZDF3. The antibacterial activity of the siderophores on pathogenic fungi was also investigated. Optimal conditions for the synthesis of siderophores were determined by single factor method, using sucrose 15 g/l, asparagine 2 g/l, 32°C, and 48 h. The optimized sucrose asparagine medium significantly increased the production of siderophores, from 27.09% to 54.99%. Moreover, the effects of different kinds of metal ions on siderophore production were explored here. We found that Fe3+ and Cu2+ significantly inhibited the synthesis of siderophores. The preliminary separation and purification of siderophores by immobilized-metal affinity chromatography (IMAC) provides strong antibacterial activity against Candida albicans. The synergistic effect of siderophores and amphotericin B was also demonstrated. Our results have shown that the GZDF3 strain could produce a large amount of siderophores with strong antagonistic activity, which is helpful in the development of new biological control agents.
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Affiliation(s)
- Miaomiao Sheng
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
| | - Huake Jia
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
| | - Gongyou Zhang
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
| | - Lina Zeng
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
| | - Tingting Zhang
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
| | - Yaohang Long
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
| | - Jing Lan
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
| | - Zuquan Hu
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
| | - Zhu Zeng
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
| | - Bing Wang
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
| | - Hongmei Liu
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, Guizhou, P.R. China
- Immune Cells and Antibody Engineering Research Center of Guizhou Province, Key Laboratory of Biology and Medical Engineering, School of Biology and Engineering, Guizhou Medical University, Guiyang 55005, Guizhou, P.R. China
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Phelan JJ, McQuaid K, Kenny C, Gogan KM, Cox DJ, Basdeo SA, O’Leary S, Tazoll SC, Ó Maoldomhnaigh C, O’Sullivan MP, O’Neill LA, O’Sullivan MJ, Keane J. Desferrioxamine Supports Metabolic Function in Primary Human Macrophages Infected With Mycobacterium tuberculosis. Front Immunol 2020; 11:836. [PMID: 32477344 PMCID: PMC7237728 DOI: 10.3389/fimmu.2020.00836] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/14/2020] [Indexed: 02/02/2023] Open
Abstract
Tuberculosis is the single biggest infectious killer in the world and presents a major global health challenge. Antimicrobial therapy requires many months of multiple drugs and incidences of drug resistant tuberculosis continues to rise. Consequently, research is now focused on the development of therapies to support the function of infected immune cells. HIF1α-mediated induction of aerobic glycolysis is integral to the host macrophage response during infection with Mtb, as this promotes bacillary clearance. Some iron chelators have been shown to modulate cellular metabolism through the regulation of HIF1α. We examined if the iron chelator, desferrioxamine (DFX), could support the function of primary human macrophages infected with Mtb. Using RT-PCR, we found that DFX promoted the expression of key glycolytic enzymes in Mtb-infected primary human MDMs and human alveolar macrophages. Using Seahorse technology, we demonstrate that DFX enhances glycolytic metabolism in Mtb-stimulated human MDMs, while helping to enhance glycolysis during mitochondrial distress. Furthermore, the effect of DFX on glycolysis was not limited to Mtb infection as DFX also boosted glycolytic metabolism in uninfected and LPS-stimulated cells. DFX also supports innate immune function by inducing IL1β production in human macrophages during early infection with Mtb and upon stimulation with LPS. Moreover, using hypoxia, Western blot and ChIP-qPCR analyses, we show that DFX modulates IL1β levels in these cells in a HIF1α-mediated manner. Collectively, our data suggests that DFX exhibits potential to enhance immunometabolic responses and augment host immune function during early Mtb infection, in selected clinical settings.
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Affiliation(s)
- James Joseph Phelan
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Kate McQuaid
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Colin Kenny
- National Children’s Research Centre, Our Lady’s Children’s Hospital, Dublin, Ireland
| | - Karl Michael Gogan
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Dónal J. Cox
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Sharee Ann Basdeo
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Seónadh O’Leary
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Simone Christa Tazoll
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Cilian Ó Maoldomhnaigh
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Mary P. O’Sullivan
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Luke A. O’Neill
- School of Biochemistry and Immunology, Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Maureen J. O’Sullivan
- National Children’s Research Centre, Our Lady’s Children’s Hospital, Dublin, Ireland
| | - Joseph Keane
- TB Immunology Group, Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
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Golden AR, Adam HJ, Baxter M, Walkty A, Lagacé-Wiens P, Karlowsky JA, Zhanel GG. In Vitro Activity of Cefiderocol, a Novel Siderophore Cephalosporin, against Gram-Negative Bacilli Isolated from Patients in Canadian Intensive Care Units. Diagn Microbiol Infect Dis 2020; 97:115012. [PMID: 32081522 DOI: 10.1016/j.diagmicrobio.2020.115012] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/17/2020] [Accepted: 01/31/2020] [Indexed: 12/29/2022]
Abstract
The in vitro activity of cefiderocol was evaluated against Gram-negative bacilli isolated from patients in Canadian intensive care units from 2015 to 2017 using the Clinical and Laboratory Standards Institute (CLSI) broth microdilution method and interpretive criteria. All 800 isolates of Gram-negative bacilli tested were susceptible to cefiderocol (MIC ≤4 μg/ml), including isolates of ESBL-producing (n=40), AmpC-producing (n=6), and carbapenem-nonsusceptible (n=21) Enterobacterales, carbapenem-nonsusceptible (n=54) and multidrug-resistant (n=29) Pseudomonas aeruginosa, Stenotrophomonas maltophilia (n=66), and Acinetobacter baumannii (n=11).
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Affiliation(s)
- Alyssa R Golden
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermot Avenue, Winnipeg, Manitoba, R3E 3P5, Canada.
| | - Heather J Adam
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermot Avenue, Winnipeg, Manitoba, R3E 3P5, Canada; Department of Clinical Microbiology, Shared Health Manitoba. MS673-820 Sherbrook Street, Winnipeg, Manitoba, R3A 1R9, Canada
| | - Melanie Baxter
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermot Avenue, Winnipeg, Manitoba, R3E 3P5, Canada
| | - Andrew Walkty
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermot Avenue, Winnipeg, Manitoba, R3E 3P5, Canada; Department of Clinical Microbiology, Shared Health Manitoba. MS673-820 Sherbrook Street, Winnipeg, Manitoba, R3A 1R9, Canada
| | - Philippe Lagacé-Wiens
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermot Avenue, Winnipeg, Manitoba, R3E 3P5, Canada; Department of Clinical Microbiology, Shared Health Manitoba. MS673-820 Sherbrook Street, Winnipeg, Manitoba, R3A 1R9, Canada
| | - James A Karlowsky
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermot Avenue, Winnipeg, Manitoba, R3E 3P5, Canada; Department of Clinical Microbiology, Shared Health Manitoba. MS673-820 Sherbrook Street, Winnipeg, Manitoba, R3A 1R9, Canada
| | - George G Zhanel
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, 727 McDermot Avenue, Winnipeg, Manitoba, R3E 3P5, Canada
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Feng X, Jiang S, Zhang F, Wang R, Zhao Y, Zeng M. Siderophore (from Synechococcus sp. PCC 7002)-Chelated Iron Promotes Iron Uptake in Caco-2 Cells and Ameliorates Iron Deficiency in Rats. Mar Drugs 2019; 17:md17120709. [PMID: 31888208 PMCID: PMC6950231 DOI: 10.3390/md17120709] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/11/2019] [Accepted: 12/11/2019] [Indexed: 01/10/2023] Open
Abstract
Siderophores are iron chelators with low molecular weight secreted by microorganisms. Siderophores have the potential to become natural iron fortifiers. To explore the feasibility of the application of Synechococcus sp. PCC7002-derived siderophores as iron fortifiers, Synechococcus sp. PCC7002, as a carrier, was fermented to produce siderophores. The absorption mechanism and anemia intervention effect of siderophores-chelated iron (SCI) were studied through the polarized Caco-2 Cell monolayers and the rat model of iron-deficiency anemia, respectively. The results indicated that siderophores (from Synechococcus sp. PCC7002) had an enhancing effect on iron absorption in polarized Caco-2 cell monolayers. The main absorption site of SCI was duodenum with pH 5.5, and the absorption methods included endocytosis and DMT1, with endocytosis being dominant. The effect of sodium phytate on SCI was less than that of ferrous sulfate. Therefore, SCI could resist inhibitory iron absorption factors in polarized Caco-2 cell monolayers. SCI showed significantly higher relative bioavailability (133.58 ± 15.42%) than ferrous sulfate (100 ± 14.84%) and ferric citrate (66.34 ± 8.715%) in the rat model. Food intake, hemoglobin concentration, and hematocrit and serum iron concentration of rats improved significantly after Fe-repletion. Overall, this study indicated that siderophores derived from Synechococcus sp. PCC7002 could be an effective and feasible iron nutritive fortifier.
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Affiliation(s)
| | | | | | | | - Yuanhui Zhao
- Correspondence: (Y.Z.); (M.Z.); Tel./Fax: +86-53-28-2032-400 (Y.Z.); +86-53-28-2032-783 (M.Z.)
| | - Mingyong Zeng
- Correspondence: (Y.Z.); (M.Z.); Tel./Fax: +86-53-28-2032-400 (Y.Z.); +86-53-28-2032-783 (M.Z.)
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Abstract
Cefiderocol, a novel siderophore cephalosporin in late-stage clinical development, utilizes a "Trojan horse" active transport mechanism to enter bacteria and has proven in vitro activity against carbapenem-resistant gram-negative pathogens, including those with major carbapenem-resistance mechanisms, and stability against all carbapenemases.
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Affiliation(s)
- Robert A Bonomo
- Medical Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Case Western Reserve University, Cleveland, Ohio
- Departments of Medicine, Pharmacology, Molecular Biology and Microbiology, Biochemistry, and Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, Ohio
- CWRU-Cleveland VAMC (Case VA CARES), Cleveland, Ohio
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Abstract
The emergence of antimicrobial resistance is a significant public health issue worldwide, particularly for healthcare-associated infections caused by carbapenem-resistant gram-negative pathogens. Cefiderocol is a novel siderophore cephalosporin targeting gram-negative bacteria, including strains with carbapenem resistance. The structural characteristics of cefiderocol show similarity to both ceftazidime and cefepime, which enable cefiderocol to withstand hydrolysis by β-lactamases. The unique chemical component is the addition of a catechol moiety on the C-3 side chain, which chelates iron and mimics naturally occurring siderophore molecules. Following the chelation of iron, cefiderocol is actively transported across the outer membrane of the bacterial cell to the periplasmic space via specialized iron transporter channels. Furthermore, cefiderocol has demonstrated structural stability against hydrolysis by both serine- and metallo-β-lactamases, including clinically relevant carbapenemases such as Klebsiella pneumoniae carbapenemase, oxacillin carbapenemase-48, and New Delhi metallo-β-lactamase. Cefiderocol has demonstrated promising in vitro antibacterial and bactericidal activity, which correlates with its in vivo efficacy in several animal models. This article reviews the discovery and chemistry of cefiderocol, as well as some of the key microbiological and in vivo findings on cefiderocol from recently conducted investigations.
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Affiliation(s)
- Takafumi Sato
- Drug Discovery and Disease Research Laboratory, Shionogi & Co, Ltd, Osaka, Japan
| | - Kenji Yamawaki
- Medicinal Chemistry Research Laboratory, Shionogi & Co, Ltd, Osaka, Japan
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Abstract
Iron is an essential nutrient for bacterial growth, replication, and metabolism. Humans store iron bound to various proteins such as hemoglobin, haptoglobin, transferrin, ferritin, and lactoferrin, limiting the availability of free iron for pathogenic bacteria. However, bacteria have developed various mechanisms to sequester or scavenge iron from the host environment. Iron can be taken up by means of active transport systems that consist of bacterial small molecule siderophores, outer membrane siderophore receptors, the TonB-ExbBD energy-transducing proteins coupling the outer and the inner membranes, and inner membrane transporters. Some bacteria also express outer membrane receptors for iron-binding proteins of the host and extract iron directly from these for uptake. Ultimately, iron is acquired and transported into the bacterial cytoplasm. The siderophores are small molecules produced and released by nearly all bacterial species and are classified according to the chemical nature of their iron-chelating group (ie, catechol, hydroxamate, α-hydroxyl-carboxylate, or mixed types). Siderophore-conjugated antibiotics that exploit such iron-transport systems are under development for the treatment of infections caused by gram-negative bacteria. Despite demonstrating high in vitro potency against pathogenic multidrug-resistant bacteria, further development of several candidates had stopped due to apparent adaptive resistance during exposure, lack of consistent in vivo efficacy, or emergence of side effects in the host. However, cefiderocol, with an optimized structure, has advanced and has been investigated in phase 1 to 3 clinical trials. This article discusses the mechanisms implicated in iron uptake and the challenges associated with the design and utilization of siderophore-mimicking antibiotics.
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Affiliation(s)
- Malcom G P Page
- Life Sciences and Chemistry, Jacobs University, Bremen gGmbh, Bremen, Germany
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Saha P, Yeoh BS, Xiao X, Golonka RM, Kumarasamy S, Vijay-Kumar M. Enterobactin, an iron chelating bacterial siderophore, arrests cancer cell proliferation. Biochem Pharmacol 2019; 168:71-81. [PMID: 31228465 PMCID: PMC6733644 DOI: 10.1016/j.bcp.2019.06.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 06/17/2019] [Indexed: 12/12/2022]
Abstract
Iron is essential for many biological functions, including being a cofactor for enzymes involved in cell proliferation. In line, it has been shown that cancer cells can perturb their iron metabolism towards retaining an abundant iron supply for growth and survival. Accordingly, it has been suggested that iron deprivation through the use of iron chelators could attenuate cancer progression. While they have exhibited anti-tumor properties in vitro, the current therapeutic iron chelators are inadequate due to their low efficacy. Therefore, we investigated whether the bacterial catecholate-type siderophore, enterobactin (Ent), could be used as a potent anti-cancer agent given its strong iron chelation property. We demonstrated that iron-free Ent can exert cytotoxic effects specifically towards monocyte-related tumor cell lines (RAW264.7 and J774A.1), but not primary cells, i.e. bone marrow-derived macrophages (BMDMs), through two mechanisms. First, we observed that RAW264.7 and J774A.1 cells preserve a bountiful intracellular labile iron pool (LIP), whose homeostasis can be disrupted by Ent. This may be due, in part, to the lower levels of lipocalin 2 (Lcn2; an Ent-binding protein) in these cell lines, whereas the higher levels of Lcn2 in BMDMs could prevent Ent from hindering their LIP. Secondly, we observed that Ent could dose-dependently impede reactive oxygen species (ROS) generation in the mitochondria. Such disruption in LIP balance and mitochondrial function may in turn promote cancer cell apoptosis. Collectively, our study highlights Ent as an anti-cancer siderophore, which can be exploited as an unique agent for cancer therapy.
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Affiliation(s)
- Piu Saha
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Beng San Yeoh
- Graduate Program in Immunology & Infectious Disease, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xia Xiao
- Division of Nephrology, MGH, Harvard Medical School, Boston, MA 02114, USA
| | - Rachel M Golonka
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Sivarajan Kumarasamy
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Matam Vijay-Kumar
- Department of Physiology & Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA; Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA.
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Negash KH, Norris JKS, Hodgkinson JT. Siderophore-Antibiotic Conjugate Design: New Drugs for Bad Bugs? Molecules 2019; 24:molecules24183314. [PMID: 31514464 PMCID: PMC6767078 DOI: 10.3390/molecules24183314] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/09/2019] [Accepted: 09/10/2019] [Indexed: 12/18/2022] Open
Abstract
Antibiotic resistance is a global health concern and a current threat to modern medicine and society. New strategies for antibiotic drug design and delivery offer a glimmer of hope in a currently limited pipeline of new antibiotics. One strategy involves conjugating iron-chelating microbial siderophores to an antibiotic or antimicrobial agent to enhance uptake and antibacterial potency. Cefiderocol (S-649266) is a promising cephalosporin–catechol conjugate currently in phase III clinical trials that utilizes iron-mediated active transport and demonstrates enhanced potency against multi-drug resistant (MDR) Gram-negative pathogens. Such molecules demonstrate that siderophore–antibiotic conjugates could be important future medicines to add to our antibiotic arsenal. This review is written in the context of the chemical design of siderophore–antibiotic conjugates focusing on the differing siderophore, linker, and antibiotic components that make up conjugates. We selected chemically distinct siderophore–antibiotic conjugates as exemplary conjugates, rather than multiple analogues, to highlight findings to date. The review should offer a general guide to the uninitiated in the molecular design of siderophore–antibiotic conjugates.
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Affiliation(s)
- Kokob H Negash
- Leicester Institute of Structural and Chemical Biology, School of Chemistry, University of Leicester, George Porter Building, University Road, Leicester LE1 7RH, UK
| | - James K S Norris
- Leicester Institute of Structural and Chemical Biology, School of Chemistry, University of Leicester, George Porter Building, University Road, Leicester LE1 7RH, UK
| | - James T Hodgkinson
- Leicester Institute of Structural and Chemical Biology, School of Chemistry, University of Leicester, George Porter Building, University Road, Leicester LE1 7RH, UK.
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Sanabria C, Migoya E, Mason JW, Stanworth SH, Katsube T, Machida M, Narukawa Y, Den Nagata T. Effect of Cefiderocol, a Siderophore Cephalosporin, on QT/QTc Interval in Healthy Adult Subjects. Clin Ther 2019; 41:1724-1736.e4. [PMID: 31378318 DOI: 10.1016/j.clinthera.2019.07.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/03/2019] [Accepted: 07/08/2019] [Indexed: 01/08/2023]
Abstract
PURPOSE Cefiderocol is a novel siderophore cephalosporin with potent activity against gram-negative bacteria, including multidrug-resistant strains. This Phase I study was conducted to assess the tolerability of single-ascending doses of cefiderocol (part 1) and the effect of cefiderocol on cardiac repolarization, assessed using the electrocardiographic corrected QT interval (QTcF) and other ECG parameters (part 2), in healthy adult subjects. METHODS Part 1 was a randomized, double-blind, placebo-controlled, single-ascending dose study in healthy adult male and female subjects. Part 2 was a 4-period crossover study in which subjects received a single 2-g dose of cefiderocol (therapeutic dose), a single 4-g dose of cefiderocol (supratherapeutic dose), or saline (placebo), each infused over 3 hours, and a single oral 400-mg dose of moxifloxacin. In each treatment period, continuous cardiac monitoring was used to assess the effects of cefiderocol on ECG parameters. The QT interval corrected using the Fridericia formula (QTcF) was the primary ECG parameter; the time-matched placebo- and baseline-adjusted (dd)-QTcF interval was the primary end point. The plasma pharmacokinetic properties of cefiderocol were calculated on the basis of concentration-time profiles in all evaluable subjects. FINDINGS All point estimates for the ddQTcF interval were <5 ms and the upper bound of the 90% CIs were <10 ms at each timepoint after the initiation of the cefiderocol 3-hour infusion. Concentration-effect modeling showed a slightly negative slope and predicted modestly negative values of the ddQTcF interval at the Cmax of cefiderocol. Both doses of cefiderocol were well tolerated. All adverse events were mild in severity, with no deaths or serious adverse events reported. IMPLICATIONS Overall, therapeutic and supratherapeutic doses of cefiderocol had no apparent clinically significant effect on the QTcF.
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Affiliation(s)
| | | | - Jay W Mason
- Mason Cardiac Safety Consulting, Reno, NV, USA
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Duscher D, Trotsyuk AA, Maan ZN, Kwon SH, Rodrigues M, Engel K, Stern-Buchbinder ZA, Bonham CA, Barrera J, Whittam AJ, Hu MS, Inayathullah M, Rajadas J, Gurtner GC. Optimization of transdermal deferoxamine leads to enhanced efficacy in healing skin wounds. J Control Release 2019; 308:232-239. [PMID: 31299261 DOI: 10.1016/j.jconrel.2019.07.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 06/07/2019] [Accepted: 07/08/2019] [Indexed: 12/30/2022]
Abstract
Chronic wounds remain a significant burden to both the healthcare system and individual patients, indicating an urgent need for new interventions. Deferoxamine (DFO), an iron-chelating agent clinically used to treat iron toxicity, has been shown to reduce oxidative stress and increase hypoxia-inducible factor-1 alpha (HIF-1α) activation, thereby promoting neovascularization and enhancing regeneration in chronic wounds. However due to its short half-life and adverse side effects associated with systemic absorption, there is a pressing need for targeted DFO delivery. We recently published a preclinical proof of concept drug delivery system (TDDS) which showed that transdermally applied DFO is effective in improving chronic wound healing. Here we present an enhanced TDDS (eTDDS) comprised exclusively of FDA-compliant constituents to optimize drug release and expedite clinical translation. We evaluate the eTDDS to the original TDDS and compare this with other commonly used delivery methods including DFO drip-on and polymer spray applications. The eTDDS displayed excellent physicochemical characteristics and markedly improved DFO delivery into human skin when compared to other topical application techniques. We demonstrate an accelerated wound healing response with the eTDDS treatment resulting in significantly increased wound vascularity, dermal thickness, collagen deposition and tensile strength. Together, these findings highlight the immediate clinical potential of DFO eTDDS to treating diabetic wounds. Further, the topical drug delivery platform has important implications for targeted pharmacologic therapy of a wide range of cutaneous diseases.
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Affiliation(s)
- Dominik Duscher
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Artem A Trotsyuk
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Zeshaan N Maan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Sun Hyung Kwon
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Melanie Rodrigues
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Karl Engel
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Zachary A Stern-Buchbinder
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Clark A Bonham
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Janos Barrera
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Alexander J Whittam
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michael S Hu
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Mohammed Inayathullah
- Biomaterials and Advanced Drug Delivery Laboratory, Stanford University School of Medicine, Stanford, CA 94304, USA
| | - Jayakumar Rajadas
- Biomaterials and Advanced Drug Delivery Laboratory, Stanford University School of Medicine, Stanford, CA 94304, USA
| | - Geoffrey C Gurtner
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
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Kong H, Cheng W, Wei H, Yuan Y, Yang Z, Zhang X. An overview of recent progress in siderophore-antibiotic conjugates. Eur J Med Chem 2019; 182:111615. [PMID: 31434038 DOI: 10.1016/j.ejmech.2019.111615] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 08/01/2019] [Accepted: 08/09/2019] [Indexed: 01/09/2023]
Abstract
Multi-drug resistant infections caused by Gram-negative bacteria have become one of the most important reasons for the failure of clinical anti-infective treatment. Siderophore-antibiotic conjugates, which were designed based on a "Trojan horse" strategy wherein features enabled active uptake to bypass the Gram-negative cell wall, have been expected to be a weapon for anti-infective treatment in the clinic. Herein, we review antibiotic drug design strategies based on mimics of nature siderophores reported in recent years, we also focus our attention on the relationship between the type of linker and the corresponding antibacterial activity.
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Affiliation(s)
- Huimin Kong
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Weiyan Cheng
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Han Wei
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yongliang Yuan
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Zhiheng Yang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Xiaojian Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
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63
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Hackel MA, Tsuji M, Yamano Y, Echols R, Karlowsky JA, Sahm DF. Reproducibility of broth microdilution MICs for the novel siderophore cephalosporin, cefiderocol, determined using iron-depleted cation-adjusted Mueller-Hinton broth. Diagn Microbiol Infect Dis 2019; 94:321-325. [PMID: 31029489 DOI: 10.1016/j.diagmicrobio.2019.03.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/04/2019] [Accepted: 03/11/2019] [Indexed: 11/27/2022]
Abstract
In 2017, the Clinical and Laboratory Standards Institute (CLSI) Subcommittee on Antimicrobial Susceptibility Testing approved the use of iron-depleted cation-adjusted Mueller-Hinton broth (ID-CAMHB) prepared with Chelex® 100 resin (Bio-Rad Laboratories, Hercules, CA) to determine MICs for cefiderocol. The current study examined the reproducibility of cefiderocol MICs generated for 19 clinical isolates of Gram-negative bacilli, with CAMHB produced by three manufacturers; each of the 19 isolates was tested for 10 replicates in ID-CAMHB from each manufacturer. When analyzed by individual media lot, greater than 95% of MIC results were within ± one doubling-dilution of the mode for each of the 19 isolates tested. The remaining 5.0% of MIC results were within ± two doubling-dilutions of the modal MIC. For all media lots combined, 92.2% of MIC results were within ± one doubling-dilution of the modal MIC for each isolate, 99.8% were within ± two doubling-dilutions and 100% were within three doubling-dilutions.
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Affiliation(s)
- Meredith A Hackel
- International Health Management Associates, Inc., Schaumburg, IL, USA.
| | - Masakatsu Tsuji
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Yoshinori Yamano
- Pharmaceutical Research Division, Shionogi & Co., Ltd., Osaka, Japan
| | - Roger Echols
- Clinical Development and Medical Affairs, ID3C, LLC, Easton, CT, USA
| | - James A Karlowsky
- Department of Medical Microbiology and Infectious Diseases, College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Daniel F Sahm
- International Health Management Associates, Inc., Schaumburg, IL, USA
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64
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Mucha J, Gabała E, Zadworny M. The effects of structurally different siderophores on the organelles of Pinus sylvestris root cells. Planta 2019; 249:1747-1760. [PMID: 30820648 DOI: 10.1007/s00425-019-03117-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
Siderophores are a driver of Pinus sylvestris root responses to metabolites secreted by pathogenic and mycorrhizal fungi. Structurally different siderophores regulate the uptake of Fe by microorganisms and may play a key role in the colonization of plants by beneficial or pathogenic fungi. Siderophore action, however, may be dependent on the distribution of Fe within cells. Here, the involvement of siderophores in determining the changes of organelle morphology and element composition of some cellular fractions of root cells in Pinus sylvestris to trophically diverse fungi was investigated. Changes in the morphology and concentrations of different elements within organelles of root cells in response to three structurally different siderophores were examined by transmission electron microscopy combined with energy-dispersive X-ray spectroscopy. Weak development of mitochondrial cristae and the deposition of backup materials in plastids occurred in the absence of Fe in the structures of triacetylfusarinine C and ferricrocin. In response to metabolites of both pathogenic and mycorrhizal fungi, Fe accumulated mainly in the cell walls and cytoplasm. Fe counts increased in all of the analyzed organelles in response to applications of ferricrocin and triacetylfusarinine C. Chelation of Fe within the structure of siderophores prevents the binding of exogenous Fe, decreasing the abundance of Fe in the cell wall and cytoplasm. The concentrations of N, P, K, Ca, Mn, Cu, Mg, and Zn also increased in cells after applications of ferricrocin and triacetylfusarinine C, while the levels of these elements decreased in the cell wall and cytoplasm when Fe was present within the structure of the siderophores. These results provide insight into the siderophore-driven response of plants to various symbionts.
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Affiliation(s)
- Joanna Mucha
- Institute of Dendrology, Polish Academy of Science, Parkowa 5, 62-035, Kórnik, Poland.
| | - Elżbieta Gabała
- Institute of Plant Protection, National Research Institute, Węgorka 20, 60-318, Poznań, Poland
| | - Marcin Zadworny
- Institute of Dendrology, Polish Academy of Science, Parkowa 5, 62-035, Kórnik, Poland
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Årstøl E, Hohmann-Marriott MF. Cyanobacterial Siderophores-Physiology, Structure, Biosynthesis, and Applications. Mar Drugs 2019; 17:E281. [PMID: 31083354 PMCID: PMC6562677 DOI: 10.3390/md17050281] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/06/2019] [Accepted: 05/07/2019] [Indexed: 11/16/2022] Open
Abstract
Siderophores are low-molecular-weight metal chelators that function in microbial iron uptake. As iron limits primary productivity in many environments, siderophores are of great ecological importance. Additionally, their metal binding properties have attracted interest for uses in medicine and bioremediation. Here, we review the current state of knowledge concerning the siderophores produced by cyanobacteria. We give an overview of all cyanobacterial species with known siderophore production, finding siderophores produced in all but the most basal clades, and in a wide variety of environments. We explore what is known about the structure, biosynthesis, and cycling of the cyanobacterial siderophores that have been characterized: Synechobactin, schizokinen and anachelin. We also highlight alternative siderophore functionality and technological potential, finding allelopathic effects on competing phytoplankton and likely roles in limiting heavy-metal toxicity. Methodological improvements in siderophore characterization and detection are briefly described. Since most known cyanobacterial siderophores have not been structurally characterized, the application of mass spectrometry techniques will likely reveal a breadth of variation within these important molecules.
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Affiliation(s)
- Erland Årstøl
- Department of Biotechnology, PhotoSynLab, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Martin F Hohmann-Marriott
- Department of Biotechnology, PhotoSynLab, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
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66
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Karlowsky JA, Hackel MA, Tsuji M, Yamano Y, Echols R, Sahm DF. In Vitro Activity of Cefiderocol, a Siderophore Cephalosporin, Against Gram-Negative Bacilli Isolated by Clinical Laboratories in North America and Europe in 2015-2016: SIDERO-WT-2015. Int J Antimicrob Agents 2019; 53:456-466. [PMID: 30471402 DOI: 10.1016/j.ijantimicag.2018.11.007] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/14/2018] [Accepted: 11/17/2018] [Indexed: 10/27/2022]
Abstract
Cefiderocol (S-649266) is a parenteral siderophore cephalosporin in phase III of clinical development. In this study, we determined the in vitro susceptibility to cefiderocol and comparators of a 2015-2016 collection of 8954 clinical isolates of Gram-negative bacilli (GNB), provided by 100 clinical laboratories in North America and Europe, using the Clinical and Laboratory Standards Institute broth microdilution method. Iron-depleted cation-adjusted Mueller-Hinton broth was used to test cefiderocol. The concentration of cefiderocol inhibiting 90% of isolates (MIC90) was 0.5 mg/L (North America; n=2470) and 1 mg/L (Europe; n=3,543) for Enterobacteriaceae, 0.5 mg/L (North America; n=619) and 0.5 mg/L (Europe; n=921) for Pseudomonas aeruginosa, 1 mg/L (North America; n=308) and 2 mg/L (Europe; n=664) for Acinetobacter spp., 0.5 mg/L (North America; n=165) and 0.25 mg/L (Europe; n=175) for Stenotrophomonas maltophilia, and 0.12 mg/L (North America; n=40) and 0.5 mg/L (Europe; n=49) for Burkholderia cepacia complex spp. Cefiderocol MICs were ≤4 mg/L for 99.9% (6005/6013) of Enterobacteriaceae, 99.9% (1539/1540) of P. aeruginosa, 96.4% (937/972) of Acinetobacter spp., 99.4% (338/340) of S. maltophilia, and 94.4% (84/89) of Burkholderia cepacia complex spp. isolates tested. Against meropenem-non-susceptible isolates, MICs to cefiderocol were ≤4 mg/L for 99.6% (245/246) of Enterobacteriaceae, 99.7% (394/395) of P. aeruginosa, 96.1% (540/562) of Acinetobacter spp., and 87.1% (27/31) of B. cepacia complex spp. We conclude that cefiderocol demonstrated potent in vitro activity (MIC ≤4 mg/L) against the majority (99.4%, 8903/8954) of clinical isolates of GNB in a recent (2015-2016), multi-continent collection, including carbapenem-non-susceptible isolates.
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Affiliation(s)
- James A Karlowsky
- International Health Management Associates, Inc., Schaumburg, Illinois, USA; Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Meredith A Hackel
- International Health Management Associates, Inc., Schaumburg, Illinois, USA.
| | - Masakatsu Tsuji
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Yoshinori Yamano
- Pharmaceutical Research Division, Shionogi & Co., Ltd., Osaka, Japan
| | - Roger Echols
- Clinical Development and Medical Affairs, ID3C, LLC, Easton, CT USA
| | - Daniel F Sahm
- International Health Management Associates, Inc., Schaumburg, Illinois, USA
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Yuan Y, Xu F, Cao Y, Xu L, Yu C, Yang F, Zhang P, Wang L, Shen G, Wang J, Xu Y. Iron Accumulation Leads to Bone Loss by Inducing Mesenchymal Stem Cell Apoptosis Through the Activation of Caspase3. Biol Trace Elem Res 2019; 187:434-441. [PMID: 29948914 DOI: 10.1007/s12011-018-1388-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 05/14/2018] [Indexed: 12/18/2022]
Abstract
Osteoporosis (OP) is a disease associated with bone loss and microstructure degradation. Recent studies have shown that iron accumulation may be a risk factor for OP. Bone marrow mesenchymal stem cells (MSCs) are multipotent cells and precursors to osteoblasts. MSCs play an important role in OP. Therefore, we evaluated the correlation between MSCs and OP in an environment of iron accumulation. Serum P1NP was decreased in iron accumulation mice. Micro-CT revealed that iron accumulation decreased bone mineral density and spatial structural parameters. Iron accumulation inhibited MSC quantity in bone marrow. However, the iron chelator deferoxamine (DFO) rescued the suppression. Iron accumulation also changed the MSC cell cycle. Iron elevated MSC cell ROS level and NOX4 protein expression. MSC apoptosis was increased, and more caspase3 was cleaved after iron intervention. Our data suggests that iron accumulation inhibits MSC quantity and induces MSC apoptosis. Bone loss from iron accumulation may correlate with the inhibition of MSCs.
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Affiliation(s)
- Ye Yuan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Fei Xu
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Yan Cao
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
| | - Li Xu
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
| | - Chen Yu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Fan Yang
- Osteoporosis Institute of Soochow University, Suzhou, 215004, China
| | - Peng Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Liang Wang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Guangsi Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China
| | - Jianrong Wang
- Hematology Center of Cyrus Tang Medical Institute, Soochow University School of Medicine, Suzhou, 215123, China
| | - Youjia Xu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Road, Suzhou, 215004, China.
- Osteoporosis Institute of Soochow University, Suzhou, 215004, China.
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68
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Jacobs MR, Abdelhamed AM, Good CE, Rhoads DD, Hujer KM, Hujer AM, Domitrovic TN, Rudin SD, Richter SS, van Duin D, Kreiswirth BN, Greco C, Fouts DE, Bonomo RA. ARGONAUT-I: Activity of Cefiderocol (S-649266), a Siderophore Cephalosporin, against Gram-Negative Bacteria, Including Carbapenem-Resistant Nonfermenters and Enterobacteriaceae with Defined Extended-Spectrum β-Lactamases and Carbapenemases. Antimicrob Agents Chemother 2019; 63:e01801-18. [PMID: 30323050 PMCID: PMC6325197 DOI: 10.1128/aac.01801-18] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/06/2018] [Indexed: 01/06/2023] Open
Abstract
The activity of the siderophore cephalosporin cefiderocol is targeted against carbapenem-resistant Gram-negative bacteria. In this study, the activity of cefiderocol against characterized carbapenem-resistant Acinetobacter baumannii complex, Stenotrophomonas maltophilia, Pseudomonas aeruginosa, and Enterobacteriaceae strains was determined by microdilution in iron-depleted Mueller-Hinton broth. The MIC90s against A. baumannii, S. maltophilia, and P. aeruginosa were 1, 0.25, and 0.5 mg/liter, respectively. Against Enterobacteriaceae, the MIC90 was 1 mg/liter for the group harboring OXA-48-like, 2 mg/liter for the group harboring KPC-3, and 8 mg/liter for the group harboring TEM/SHV ESBL, NDM, and KPC-2.
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Affiliation(s)
- Michael R Jacobs
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Ayman M Abdelhamed
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Caryn E Good
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Daniel D Rhoads
- Department of Pathology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Kristine M Hujer
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio, USA
| | - Andrea M Hujer
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio, USA
| | - T Nicholas Domitrovic
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio, USA
| | - Susan D Rudin
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio, USA
| | - Sandra S Richter
- Department of Laboratory Medicine, Cleveland Clinic, Cleveland, Ohio, USA
| | - David van Duin
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Barry N Kreiswirth
- Public Health Research Institute, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Chris Greco
- J. Craig Venter Institute, Rockville, Maryland, USA
| | | | - Robert A Bonomo
- Department of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio, USA
- Department of Molecular Biology and Microbiology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Biochemistry, Case Western Reserve University, Cleveland, Ohio, USA
- Center for Proteomics and Bioinformatics, Case Western Reserve University, Cleveland, Ohio, USA
- CWRU-Cleveland VAMC Center for Antimicrobial Resistance and Epidemiology (Case Virginia, USA CARES), Cleveland, Ohio, USA
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69
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Abstract
Siderophores are secondary metabolites produced by different organisms in order to scavenge iron from their surrounding environment making this essential element available to the cell. Presenting high affinity for ferric iron, siderophores are secreted out to form soluble ferric complexes that can be taken up by the organisms. Siderophores present complex chemistry that allows them to form the strongest iron-chelating complexes. Interest in this field is always up to date and new siderophores are found with new roles and applications. For example, siderophores participate to the mobilization of iron and other elements and are involved in virulence processes. Recently, a strong relation between siderophores and oxidative stress tolerance has been also highlighted. Their application in medicine has been widely studied as well as in agriculture. However, new fields are paying attention to the use of siderophores as green-iron chelators. In particular, siderophores have been proposed for the preservation of cultural heritage.
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Affiliation(s)
- Magdalena Albelda-Berenguer
- Laboratory of Technologies for Heritage Materials, Institute of Chemistry, University of Neuchâtel, Neuchâtel, Switzerland
| | - Mathilde Monachon
- Laboratory of Technologies for Heritage Materials, Institute of Chemistry, University of Neuchâtel, Neuchâtel, Switzerland
| | - Edith Joseph
- Laboratory of Technologies for Heritage Materials, Institute of Chemistry, University of Neuchâtel, Neuchâtel, Switzerland; Haute Ecole Arc Conservation-Restauration, Neuchâtel, Switzerland.
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70
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Katsube T, Miyazaki S, Narukawa Y, Hernandez-Illas M, Wajima T. Drug-drug interaction of cefiderocol, a siderophore cephalosporin, via human drug transporters. Eur J Clin Pharmacol 2018; 74:931-938. [PMID: 29627897 DOI: 10.1007/s00228-018-2458-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 03/27/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE Cefiderocol, a siderophore cephalosporin, will be used concomitantly with other medications for treatment of bacterial infections. In vitro studies demonstrated inhibition potential of cefiderocol on organic anion transporter (OAT) 1, OAT3, organic cation transporter (OCT) 1, OCT2, multidrug and toxin extrusion (MATE) 2-K, and organic anion transporting polypeptide (OATP) 1B3. The aim of this study was to assess in vivo drug-drug interaction (DDI) potential of cefiderocol using probe substrates for these transporters. METHODS DDI potentials of cefiderocol as inhibitors were assessed in a clinical study consisting of 3 cohorts. Twelve or 13 healthy adult subjects per cohort orally received a single dose of furosemide 20 mg (for OAT1/3), metformin 1000 mg (for OCT1/2 and MATE2-K), or rosuvastatin 10 mg (for OATP1B3) with or without co-administration with cefiderocol 2 g every 8 h with 3-h infusion (a total of 3, 6, and 9 doses of cefiderocol with furosemide, metformin, and rosuvastatin, respectively). DDI potentials were assessed based on the pharmacokinetics of the substrates. RESULTS Ratios (90% confidence intervals) of maximum plasma concentration and area under the plasma concentration-time curve were 1.00 (0.71-1.42) and 0.92 (0.73-1.16) for furosemide, 1.09 (0.92-1.28) and 1.03 (0.93-1.15) for metformin, and 1.28 (1.12-1.46) and 1.21 (1.08-1.35) for rosuvastatin, respectively. Exposures to furosemide or metformin did not change when co-administered with cefiderocol. Slight increase in rosuvastatin exposure was observed with co-administered with cefiderocol, which was not considered to be clinically significant. Each treatment was well tolerated. CONCLUSIONS Cefiderocol has no clinically significant DDI potential via drug transporters.
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Affiliation(s)
- Takayuki Katsube
- Clinical Pharmacology & Pharmacokinetics, Shionogi & Co., Ltd., Osaka, Japan.
| | - Shiro Miyazaki
- Drug Metabolism & Pharmacokinetics Department, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | | | | | - Toshihiro Wajima
- Clinical Pharmacology & Pharmacokinetics, Shionogi & Co., Ltd., Osaka, Japan
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71
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You L, Wang J, Liu T, Zhang Y, Han X, Wang T, Guo S, Dong T, Xu J, Anderson GJ, Liu Q, Chang YZ, Lou X, Nie G. Targeted Brain Delivery of Rabies Virus Glycoprotein 29-Modified Deferoxamine-Loaded Nanoparticles Reverses Functional Deficits in Parkinsonian Mice. ACS Nano 2018; 12:4123-4139. [PMID: 29617109 DOI: 10.1021/acsnano.7b08172] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Excess iron deposition in the brain often causes oxidative stress-related damage and necrosis of dopaminergic neurons in the substantia nigra and has been reported to be one of the major vulnerability factors in Parkinson's disease (PD). Iron chelation therapy using deferoxamine (DFO) may inhibit this nigrostriatal degeneration and prevent the progress of PD. However, DFO shows very short half-life in vivo and hardly penetrates the blood brain barrier (BBB). Hence, it is of great interest to develop DFO formulations for safe and efficient intracerebral drug delivery. Herein, we report a polymeric nanoparticle system modified with brain-targeting peptide rabies virus glycoprotein (RVG) 29 that can intracerebrally deliver DFO. The nanoparticle system penetrates the BBB possibly through specific receptor-mediated endocytosis triggered by the RVG29 peptide. Administration of these nanoparticles significantly decreased iron content and oxidative stress levels in the substantia nigra and striatum of PD mice and effectively reduced their dopaminergic neuron damage and as reversed their neurobehavioral deficits, without causing any overt adverse effects in the brain or other organs. This DFO-based nanoformulation holds great promise for delivery of DFO into the brain and for realizing iron chelation therapy in PD treatment.
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Affiliation(s)
- Linhao You
- Laboratory of Molecular Iron Metabolism, College of Life Science , Hebei Normal University , Shijiazhuang , Hebei Province 050024 , China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
| | - Jing Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Tianqing Liu
- QIMR Berghofer Medical Research Institute , PO Royal Brisbane Hospital , Brisbane , QLD 4029 , Australia
| | - Yinlong Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
- College of Pharmaceutical Science , Jilin University , Changchun 130021 , China
| | - Xuexiang Han
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Ting Wang
- Department of Radiology , The People's Liberation Army General Hospital , No. 28 Fuxing Road , Beijing 100853 , China
| | - Shanshan Guo
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Tianyu Dong
- Laboratory of Molecular Iron Metabolism, College of Life Science , Hebei Normal University , Shijiazhuang , Hebei Province 050024 , China
| | - Junchao Xu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Gregory J Anderson
- QIMR Berghofer Medical Research Institute , PO Royal Brisbane Hospital , Brisbane , QLD 4029 , Australia
| | - Qiang Liu
- Chinese Academy of Sciences Key Laboratory of Brain Function and Disease, and School of Life Sciences , University of Science and Technology of China , Hefei 230026 , China
| | - Yan-Zhong Chang
- Laboratory of Molecular Iron Metabolism, College of Life Science , Hebei Normal University , Shijiazhuang , Hebei Province 050024 , China
| | - Xin Lou
- Department of Radiology , The People's Liberation Army General Hospital , No. 28 Fuxing Road , Beijing 100853 , China
| | - Guangjun Nie
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience , National Center for Nanoscience and Technology , Beijing 100190 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
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72
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Bonham CA, Rodrigues M, Galvez M, Trotsyuk A, Stern-Buchbinder Z, Inayathullah M, Rajadas J, Gurtner GC. Deferoxamine can prevent pressure ulcers and accelerate healing in aged mice. Wound Repair Regen 2018; 26:300-305. [PMID: 30152571 PMCID: PMC6238634 DOI: 10.1111/wrr.12667] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/18/2018] [Accepted: 08/04/2018] [Indexed: 12/27/2022]
Abstract
Chronic wounds are a significant medical and economic problem worldwide. Individuals over the age of 65 are particularly vulnerable to pressure ulcers and impaired wound healing. With this demographic growing rapidly, there is a need for effective treatments. We have previously demonstrated that defective hypoxia signaling through destabilization of the master hypoxia-inducible factor 1α (HIF-1α) underlies impairments in both aging and diabetic wound healing. To stabilize HIF-1α, we developed a transdermal delivery system of the Food and Drug Administration-approved small molecule deferoxamine (DFO) and found that transdermal DFO could both prevent and treat ulcers in diabetic mice. Here, we demonstrate that transdermal DFO can similarly prevent pressure ulcers and normalize aged wound healing. Enhanced wound healing by DFO is brought about by stabilization of HIF-1α and improvements in neovascularization. Transdermal DFO can be rapidly translated into the clinic and may represent a new approach to prevent and treat pressure ulcers in aged patients.
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73
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Robertson AW, McCarville NG, MacIntyre LW, Correa H, Haltli B, Marchbank DH, Kerr RG. Isolation of Imaqobactin, an Amphiphilic Siderophore from the Arctic Marine Bacterium Variovorax Species RKJM285. J Nat Prod 2018; 81:858-865. [PMID: 29616814 DOI: 10.1021/acs.jnatprod.7b00943] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The amphiphilic siderophore imaqobactin was isolated from the Arctic bacterium Variovorax sp. RKJM285, a strain isolated from marine sediment collected from an inlet near Clyde River, Nunavut, Canada. The 2D structure of imaqobactin was determined by a combination of LC-HRMS, MS/MS, and NMR spectroscopic methods. The absolute configuration of the depsipeptide core was determined by Marfey's analysis, and the relative configuration of the 4,7-diamino-3-hydroxy-2-methylheptanoic acid moiety was determined by NOESY and selective NOE experiments. The photoreductive properties of imaqobactin were tested and are discussed. Initial tests for antimicrobial and cytotoxic activity of imaqobactin were also performed, identifying moderate antimicrobial activity.
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Affiliation(s)
- Andrew W Robertson
- Department of Chemistry , University of Prince Edward Island , Charlottetown , PEI , Canada C1A 4P3
- Nautilus Biosciences Canada Inc. , Duffy Research Center , 550 University Avenue , Charlottetown , PEI , Canada C1A 4P3
| | - Nicholas G McCarville
- Nautilus Biosciences Canada Inc. , Duffy Research Center , 550 University Avenue , Charlottetown , PEI , Canada C1A 4P3
| | - Logan W MacIntyre
- Department of Biomedical Sciences, Atlantic Veterinary College , University of Prince Edward Island , Charlottetown , PEI , Canada C1A 4P3
| | - Hebelin Correa
- Nautilus Biosciences Canada Inc. , Duffy Research Center , 550 University Avenue , Charlottetown , PEI , Canada C1A 4P3
| | - Brad Haltli
- Department of Chemistry , University of Prince Edward Island , Charlottetown , PEI , Canada C1A 4P3
- Nautilus Biosciences Canada Inc. , Duffy Research Center , 550 University Avenue , Charlottetown , PEI , Canada C1A 4P3
- Department of Biomedical Sciences, Atlantic Veterinary College , University of Prince Edward Island , Charlottetown , PEI , Canada C1A 4P3
| | - Douglas H Marchbank
- Department of Chemistry , University of Prince Edward Island , Charlottetown , PEI , Canada C1A 4P3
- Nautilus Biosciences Canada Inc. , Duffy Research Center , 550 University Avenue , Charlottetown , PEI , Canada C1A 4P3
| | - Russell G Kerr
- Department of Chemistry , University of Prince Edward Island , Charlottetown , PEI , Canada C1A 4P3
- Nautilus Biosciences Canada Inc. , Duffy Research Center , 550 University Avenue , Charlottetown , PEI , Canada C1A 4P3
- Department of Biomedical Sciences, Atlantic Veterinary College , University of Prince Edward Island , Charlottetown , PEI , Canada C1A 4P3
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Su Q, Xu G, Guan T, Que Y, Lu H. Mass spectrometry-derived systems biology technologies delineate the system's biochemical applications of siderophores. Mass Spectrom Rev 2018; 37:188-201. [PMID: 27579891 DOI: 10.1002/mas.21513] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
Siderophores are chemically diverse secondary metabolites that primarily assist the host organisms to chelate iron. Siderophores are biosynthesized by many biological organisms, including bacteria, fungi, and plants and they are responsible for a variety of biological functions beyond capture iron. Thus, they could provide a novel understanding of host-pathogen interactions, plant physiology, disease pathogenesis, and drug development. However, knowledge gaps in analytical technologies, chemistry, and biology have severely impeded the applications of siderophores, and a new strategy is urgently needed to bridge these gaps. Mass spectrometry (MS) and associated technologies render unparalleled advantages in this niche in terms of high throughput, resolution, and sensitivity. Herein, this critical review briefly summarizes progress in the study of siderophores and specifically identifies MS-based novel strategies that attempt to mimic the complexity of siderophore systems in order to increase the applicability of these compounds in the scientific community. © 2016 Wiley Periodicals, Inc. Mass Spec Rev 37:188-201, 2018.
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Affiliation(s)
- Qiao Su
- Shanghai Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200240, China
- The Laboratory for Functional Omics and Innovative Chinese Medicine, Innovative Drug Research Center, Chongqing University, Chongqing, 401331, P.R. China
| | - Guang Xu
- The Laboratory for Functional Omics and Innovative Chinese Medicine, Innovative Drug Research Center, Chongqing University, Chongqing, 401331, P.R. China
| | - Tianbing Guan
- The Laboratory for Functional Omics and Innovative Chinese Medicine, Innovative Drug Research Center, Chongqing University, Chongqing, 401331, P.R. China
| | - Yumei Que
- Shanghai Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200240, China
- The Laboratory for Functional Omics and Innovative Chinese Medicine, Innovative Drug Research Center, Chongqing University, Chongqing, 401331, P.R. China
| | - Haitao Lu
- Shanghai Center for Systems Biomedicine, Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Jiao Tong University, Shanghai, 200240, China
- The Laboratory for Functional Omics and Innovative Chinese Medicine, Innovative Drug Research Center, Chongqing University, Chongqing, 401331, P.R. China
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75
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Ghazi IM, Monogue ML, Tsuji M, Nicolau DP. Humanized Exposures of Cefiderocol, a Siderophore Cephalosporin, Display Sustained in vivo Activity against Siderophore-Resistant Pseudomonas aeruginosa. Pharmacology 2018; 101:278-284. [PMID: 29471305 PMCID: PMC5972512 DOI: 10.1159/000487441] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 02/01/2018] [Accepted: 02/01/2018] [Indexed: 11/19/2022]
Abstract
We evaluated the in vivo efficacy of humanized exposures of cefiderocol, a novel siderophore cephalosporin, against a test panel of P. aeruginosa (PSA) previously shown to develop resistance to 2 preclinical candidate siderophores (MB-1 and SMC-3176). In the thigh infection model, the PSA bacterial density in untreated controls grew from 5.54 ± 0.23 to 8.68 ± 0.57 log10 CFU over 24 h. The humanized cefiderocol exposure resulted in >1 log10 CFU reduction in all 8 isolates, while MB-1 and SMC-3176 exhibited variable activity similar to that previously reported. Humanized exposures of cefepime and levofloxacin, acting as positive antimicrobial controls displayed activity consistent with that of the bacterial phenotypic susceptibility profiles. Cefiderocol manifested in vivo efficacy against all PSA isolates including those resistant to cefepime and levofloxacin in contrast to its predecessor siderophore compounds. These preclinical data are supportive of further evaluation of cefiderocol in the treatment of P. aeruginosa.
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Affiliation(s)
- Islam M. Ghazi
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
| | - Marguerite L. Monogue
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
| | - Masakatsu Tsuji
- Drug Discovery and Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - David P. Nicolau
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
- Division of Infectious Diseases, Hartford Hospital, Hartford, Connecticut, USA
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Abstract
INTRODUCTION The emergence of multidrug-resistant bacterial pathogens has led to a global public health emergency and novel therapeutic options and drug-delivery systems are urgently needed. Cefiderocol is a siderophore cephalosporin antibiotic that has recently been developed to combat a variety of bacterial pathogens, including β-lactam- and carbapenem-resistant organisms. AREAS COVERED This paper provides an overview of the mutational and plasmid-mediated mechanisms of β-lactam and carbapenem resistance, the biochemical pathways of siderophores in bacterial iron metabolism, and how cefiderocol may be able to provide better targeted antimicrobial therapy that escape these drug-resistant mechanisms. We also explore the pharmacokinetics of this new compound as well as results from preclinical and clinical studies. EXPERT OPINION There is an urgent need for novel antimicrobial agents to address the emergence of multidrug-resistant pathogens, which are an increasing cause of morbidity and mortality worldwide. Our understanding of multidrug-resistance and bacterial biochemical pathways continues to expand, and the development of cefiderocol specifically targeting siderophore-mediated iron transport shows potential in escaping mechanisms of drug resistance. Cefiderocol, which demonstrates a favorable side effect profile, has the potential to become first-line therapy for our most aggressive and lethal multidrug-resistant Gram-negative pathogens.
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Affiliation(s)
- Justin J Choi
- a Department of Medicine , Weill Cornell Medical College , New York , NY , USA
| | - Matthew W McCarthy
- b Division of General Internal Medicine , New York-Presbyterian Hospital , New York , NY , USA
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Hackel MA, Tsuji M, Yamano Y, Echols R, Karlowsky JA, Sahm DF. In Vitro Activity of the Siderophore Cephalosporin, Cefiderocol, against Carbapenem-Nonsusceptible and Multidrug-Resistant Isolates of Gram-Negative Bacilli Collected Worldwide in 2014 to 2016. Antimicrob Agents Chemother 2018; 62:e01968-17. [PMID: 29158270 PMCID: PMC5786755 DOI: 10.1128/aac.01968-17] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 11/03/2017] [Indexed: 12/13/2022] Open
Abstract
The in vitro activity of the investigational siderophore cephalosporin, cefiderocol (formerly S-649266), was determined against a 2014-2016, 52-country, worldwide collection of clinical isolates of carbapenem-nonsusceptible Enterobacteriaceae (n = 1,022), multidrug-resistant (MDR) Acinetobacter baumannii (n = 368), MDR Pseudomonas aeruginosa (n = 262), Stenotrophomonas maltophilia (n = 217), and Burkholderia cepacia (n = 4) using the Clinical and Laboratory Standards Institute (CLSI) standard broth microdilution method. Iron-depleted cation-adjusted Mueller-Hinton broth (ID-CAMHB), prepared according to a recently approved (2017), but not yet published, CLSI protocol, was used to test cefiderocol; all other antimicrobial agents were tested using CAMHB. The concentration of cefiderocol inhibiting 90% (MIC90) of isolates of carbapenem-nonsusceptible Enterobacteriaceae was 4 μg/ml; cefiderocol MICs ranged from 0.004 to 32 μg/ml, and 97.0% (991/1,022) of isolates demonstrated cefiderocol MICs of ≤4 μg/ml. The MIC90s for cefiderocol for MDR A. baumannii, MDR P. aeruginosa, and S. maltophilia were 8, 1, and 0.25 μg/ml, respectively, with 89.7% (330/368), 99.2% (260/262), and 100% (217/217) of isolates demonstrating cefiderocol MICs of ≤4 μg/ml. Cefiderocol MICs for B. cepacia ranged from 0.004 to 8 μg/ml. We conclude that cefiderocol demonstrated potent in vitro activity against a 2014-2016, worldwide collection of clinical isolates of carbapenem-nonsusceptible Enterobacteriaceae, MDR A. baumannii, MDR P. aeruginosa, S. maltophilia, and B. cepacia isolates as 96.2% of all (1,801/1,873) isolates tested had cefiderocol MICs of ≤4 μg/ml.
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Affiliation(s)
- Meredith A Hackel
- International Health Management Associates, Inc., Schaumburg, Illinois, USA
| | - Masakatsu Tsuji
- Drug Discovery and Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Yoshinori Yamano
- Pharmaceutical Research Division, Shionogi & Co., Ltd., Osaka, Japan
| | - Roger Echols
- Clinical Development and Medical Affairs, ID3C, LLC, Easton, Connecticut, USA
| | - James A Karlowsky
- Department of Medical Microbiology, College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Daniel F Sahm
- International Health Management Associates, Inc., Schaumburg, Illinois, USA
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Li Q, Ding Y, Krafft P, Wan W, Yan F, Wu G, Zhang Y, Zhan Q, Zhang JH. Targeting Germinal Matrix Hemorrhage-Induced Overexpression of Sodium-Coupled Bicarbonate Exchanger Reduces Posthemorrhagic Hydrocephalus Formation in Neonatal Rats. J Am Heart Assoc 2018; 7:e007192. [PMID: 29386206 PMCID: PMC5850237 DOI: 10.1161/jaha.117.007192] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 11/21/2017] [Indexed: 02/01/2023]
Abstract
BACKGROUND Germinal matrix hemorrhage (GMH) is a leading cause of mortality and lifelong morbidity in preterm infants. Posthemorrhagic hydrocephalus (PHH) is a common complication of GMH. A sodium-coupled bicarbonate exchanger (NCBE) encoded by solute carrier family 4 member 10 gene is expressed on the choroid plexus basolateral membrane and may play a role in cerebrospinal fluid production and the development of PHH. Following GMH, iron degraded from hemoglobin has been linked to PHH. Choroid plexus epithelial cells also contain iron-responsive element-binding proteins (IRPs), IRP1, and IRP2 that bind to mRNA iron-responsive elements. The present study aims to resolve the following issues: (1) whether the expression of NCBE is regulated by IRPs; (2) whether NCBE regulates the formation of GMH-induced hydrocephalus; and (3) whether inhibition of NCBE reduces PHH development. METHODS AND RESULTS GMH model was established in P7 rat pups by injecting bacterial collagenase into the right ganglionic eminence. Another group received iron trichloride injections instead of collagenase. Deferoxamine was administered intraperitoneally for 3 consecutive days after GMH/iron trichloride. Solute carrier family 4 member 10 small interfering RNA or scrambled small interfering RNA was administered by intracerebroventricular injection 24 hours before GMH and followed with an injection every 7 days over 21 days. NCBE expression increased while IRP2 expression decreased after GMH/iron trichloride. Deferoxamine ameliorated both the GMH-induced and iron trichloride-induced decrease of IRP2 and decreased NCBE expressions. Deferoxamine and solute carrier family 4 member 10 small interfering RNA improved cognitive and motor functions at 21 to 28 days post GMH and reduced cerebrospinal fluid production as well as the degree of hydrocephalus at 28 days after GMH. CONCLUSIONS Targeting iron-induced overexpression of NCBE may be a translatable therapeutic strategy for the treatment of PHH following GMH.
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Affiliation(s)
- Qian Li
- Department of Neurology, The Fifth People's Hospital of Chongqing, Chongqing, China
| | - Yan Ding
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA
| | - Paul Krafft
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA
| | - Weifeng Wan
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA
| | - Feng Yan
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA
| | - Guangyong Wu
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA
| | - Yixin Zhang
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA
| | - Qunling Zhan
- Department of Neurology, The Fifth People's Hospital of Chongqing, Chongqing, China
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA
- Department of Anesthesiology, Loma Linda University School of Medicine, Loma Linda, CA
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Bou-Fakhredin R, Bazarbachi AH, Chaya B, Sleiman J, Cappellini MD, Taher AT. Iron Overload and Chelation Therapy in Non-Transfusion Dependent Thalassemia. Int J Mol Sci 2017; 18:ijms18122778. [PMID: 29261151 PMCID: PMC5751376 DOI: 10.3390/ijms18122778] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 12/17/2017] [Accepted: 12/20/2017] [Indexed: 01/19/2023] Open
Abstract
Iron overload (IOL) due to increased intestinal iron absorption constitutes a major clinical problem in patients with non-transfusion-dependent thalassemia (NTDT), which is a cumulative process with advancing age. Current models for iron metabolism in patients with NTDT suggest that suppression of serum hepcidin leads to an increase in iron absorption and subsequent release of iron from the reticuloendothelial system, leading to depletion of macrophage iron, relatively low levels of serum ferritin, and liver iron loading. The consequences of IOL in patients with NTDT are multiple and multifactorial. Accurate and reliable methods of diagnosis and monitoring of body iron levels are essential, and the method of choice for measuring iron accumulation will depend on the patient's needs and on the available facilities. Iron chelation therapy (ICT) remains the backbone of NTDT management and is one of the most effective and practical ways of decreasing morbidity and mortality. The aim of this review is to describe the mechanism of IOL in NTDT, and the clinical complications that can develop as a result, in addition to the current and future therapeutic options available for the management of IOL in NTDT.
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Affiliation(s)
- Rayan Bou-Fakhredin
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut 11-0236, Lebanon.
| | - Abdul-Hamid Bazarbachi
- Faculty of Medicine, American University of Beirut Medical Center, Beirut 11-0236, Lebanon.
| | - Bachar Chaya
- Faculty of Medicine, American University of Beirut Medical Center, Beirut 11-0236, Lebanon.
| | - Joseph Sleiman
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut 11-0236, Lebanon.
| | - Maria Domenica Cappellini
- Department of Medicine, Ca'Granda Foundation IRCCS, University of Milan, Milan 20122, Italy.
- Department of Clinical Science and Community, University of Milan, Milan 20122, Italy.
| | - Ali T Taher
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut 11-0236, Lebanon.
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Zhang F, Barns K, Hoffmann FM, Braun DR, Andes DR, Bugni TS. Thalassosamide, a Siderophore Discovered from the Marine-Derived Bacterium Thalassospira profundimaris. J Nat Prod 2017; 80:2551-2555. [PMID: 28840714 PMCID: PMC5740872 DOI: 10.1021/acs.jnatprod.7b00328] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Here we describe the rapid identification and prioritization of novel active marine natural products using an improved dereplication strategy. During the course of our screening of marine natural product libraries, a new cyclic trihydroxamate compound, thalassosamide, was discovered from the α-proteobacterium Thalassospira profundimaris. Its structure was determined by 2D NMR and MS/MS experiments, and the absolute configuration of the lysine-derived units was established by Marfey's analysis, whereas that of C-9, 9', and 9″ was determined via the circular dichroism data of the [Rh2(OCOCF3)4] complex and DFT NMR calculations. Thalassosamide showed moderate in vivo efficacy against Pseudomonas aeruginosa.
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Affiliation(s)
- Fan Zhang
- Pharmaceutical Sciences Division, University of Wisconsin–Madison, Madison, Wisconsin 53705, United States
| | - Kenneth Barns
- Small Molecule Screening & Synthesis Facility, UW Carbone Cancer Center, Madison, Wisconsin 53792, United States
| | - F. Michael Hoffmann
- Small Molecule Screening & Synthesis Facility, UW Carbone Cancer Center, Madison, Wisconsin 53792, United States
| | - Doug R. Braun
- Pharmaceutical Sciences Division, University of Wisconsin–Madison, Madison, Wisconsin 53705, United States
| | - David R. Andes
- Department of Medicine, University of Wisconsin–Madison, Madison, Wisconsin 53705, United States
| | - Tim S. Bugni
- Pharmaceutical Sciences Division, University of Wisconsin–Madison, Madison, Wisconsin 53705, United States
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Tian Y, He Y, Song W, Zhang E, Xia X. Neuroprotective effect of deferoxamine on N-methyl-d-aspartate-induced excitotoxicity in RGC-5 cells. Acta Biochim Biophys Sin (Shanghai) 2017; 49:827-834. [PMID: 28910980 DOI: 10.1093/abbs/gmx082] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Indexed: 01/20/2023] Open
Abstract
Many N-methyl-d-aspartate (NMDA) receptor antagonists have been used to treat neurodegenerative diseases induced by glutamate excitotoxicity in clinics. However, the universality of the glutamic acid neurotransmitter system makes the glutamic acid receptor blockers inefficient and unsafe. Thus, regulating the downstream signaling pathway in the excitotoxicity of glutamic acid may be a more effective and safer way to antagonize the glutamic acid receptor. In this study, we investigated the effect of deferoxamine (DFO), an iron chelator, on the NMDA-induced excitotoxicity. RGC-5 cells were cultured and identified in vitro, and the NMDA-induced injury was assessed. Then the MTT assay was used to estimate the cell survival and JC-1 staining was performed to detect changes in mitochondrial membrane potential. Immunofluorescent staining and western blot analysis were used to analyze the expressions of respiratory chain proteins. It was found that DFO increased the survival rate of RGC-5 cells and that this effect was positively correlated with the concentration of DFO and the treatment time. The mitochondrial membrane potential and the expression levels of succinate dehydrogenase subunit A and cytochrome c oxidase subunit IV were also increased after DFO treatment, while NMDA reduced their expression levels. These data demonstrate that DFO has significant neuroprotective activity against NMDA-induced excitotoxicity in RGC-5 cells.
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Affiliation(s)
- Ying Tian
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ye He
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Weitao Song
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Endong Zhang
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xiaobo Xia
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China
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Dutta J, Thakur D. Evaluation of multifarious plant growth promoting traits, antagonistic potential and phylogenetic affiliation of rhizobacteria associated with commercial tea plants grown in Darjeeling, India. PLoS One 2017; 12:e0182302. [PMID: 28771547 PMCID: PMC5542436 DOI: 10.1371/journal.pone.0182302] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 07/16/2017] [Indexed: 11/24/2022] Open
Abstract
Plant growth promoting rhizobacteria (PGPR) are studied in different agricultural crops but the interaction of PGPR of tea crop is not yet studied well. In the present study, the indigenous tea rhizobacteria were isolated from seven tea estates of Darjeeling located in West Bengal, India. A total of 150 rhizobacterial isolates were screened for antagonistic activity against six different fungal pathogens i.e. Nigrospora sphaerica (KJ767520), Pestalotiopsis theae (ITCC 6599), Curvularia eragostidis (ITCC 6429), Glomerella cingulata (MTCC 2033), Rhizoctonia Solani (MTCC 4633) and Fusarium oxysporum (MTCC 284), out of which 48 isolates were antagonist to at least one fungal pathogen used. These 48 isolates exhibited multifarious antifungal properties like the production of siderophore, chitinase, protease and cellulase and also plant growth promoting (PGP) traits like IAA production, phosphate solubilization, ammonia and ACC deaminase production. Amplified ribosomal DNA restriction analysis (ARDRA) and BOX-PCR analysis based genotyping clustered the isolates into different groups. Finally, four isolates were selected for plant growth promotion study in two tea commercial cultivars TV-1 and Teenali-17 in nursery conditions. The plant growth promotion study showed that the inoculation of consortia of these four PGPR isolates significantly increased the growth of tea plant in nursery conditions. Thus this study underlines the commercial potential of these selected PGPR isolates for sustainable tea cultivation.
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Affiliation(s)
- Jintu Dutta
- Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, Assam, India
| | - Debajit Thakur
- Microbial Biotechnology Laboratory, Life Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, Assam, India
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Oses C, Olivares B, Ezquer M, Acosta C, Bosch P, Donoso M, Léniz P, Ezquer F. Preconditioning of adipose tissue-derived mesenchymal stem cells with deferoxamine increases the production of pro-angiogenic, neuroprotective and anti-inflammatory factors: Potential application in the treatment of diabetic neuropathy. PLoS One 2017; 12:e0178011. [PMID: 28542352 PMCID: PMC5438173 DOI: 10.1371/journal.pone.0178011] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 05/06/2017] [Indexed: 12/24/2022] Open
Abstract
Diabetic neuropathy (DN) is one of the most frequent and troublesome complications of diabetes mellitus. Evidence from diabetic animal models and diabetic patients suggests that reduced availability of neuroprotective and pro-angiogenic factors in the nerves in combination with a chronic pro-inflammatory microenvironment and high level of oxidative stress, contribute to the pathogenesis of DN. Mesenchymal stem cells (MSCs) are of great interest as therapeutic agents for regenerative purposes, since they can secrete a broad range of cytoprotective and anti-inflammatory factors. Therefore, the use of the MSC secretome may represent a promising approach for DN treatment. Recent data indicate that the paracrine potential of MSCs could be boosted by preconditioning these cells with an environmental or pharmacological stimulus, enhancing their therapeutic efficacy. In the present study, we observed that the preconditioning of human adipose tissue-derived MSCs (AD-MSCs) with 150μM or 400μM of the iron chelator deferoxamine (DFX) for 48 hours, increased the abundance of the hypoxia inducible factor 1 alpha (HIF-1α) in a concentration dependent manner, without affecting MSC morphology and survival. Activation of HIF-1α led to the up-regulation of the mRNA levels of pro-angiogenic factors like vascular endothelial growth factor alpha and angiopoietin 1. Furthermore this preconditioning increased the expression of potent neuroprotective factors, including nerve growth factor, glial cell-derived neurotrophic factor and neurotrophin-3, and cytokines with anti-inflammatory activity like IL4 and IL5. Additionally, we observed that these molecules, which could also be used as therapeutics, were also increased in the secretome of MSCs preconditioned with DFX compared to the secretome obtained from non-preconditioned cells. Moreover, DFX preconditioning significantly increased the total antioxidant capacity of the MSC secretome and they showed neuroprotective effects when evaluated in an in vitro model of DN. Altogether, our findings suggest that DFX preconditioning of AD-MSCs improves their therapeutic potential and should be considered as a potential strategy for the generation of new alternatives for DN treatment.
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Affiliation(s)
- Carolina Oses
- Centro de Medicina Regenerativa, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo. Av. Las Condes, Santiago, Chile
| | - Belén Olivares
- Centro de Química Médica, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo. Av. Las Condes, Santiago, Chile
| | - Marcelo Ezquer
- Centro de Medicina Regenerativa, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo. Av. Las Condes, Santiago, Chile
| | - Cristian Acosta
- Instituto de Histología y Embriología de Mendoza (IHEM-CONICET), Facultad de Medicina, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Paul Bosch
- Facultad de Ingeniería, Universidad del Desarrollo. Av. Plaza, Santiago, Chile
| | - Macarena Donoso
- Facultad de Ingeniería, Universidad del Desarrollo. Av. Plaza, Santiago, Chile
| | - Patricio Léniz
- Unidad de Cirugía Plástica, Reparadora y Estética, Clínica Alemana. Av. Vitacura, Santiago, Chile
| | - Fernando Ezquer
- Centro de Medicina Regenerativa, Facultad de Medicina Clínica Alemana-Universidad del Desarrollo. Av. Las Condes, Santiago, Chile
- * E-mail:
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84
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Abstract
BACKGROUND Endometriosis is one of the most common chronic gynecological diseases. OBJECTIVES The aim of the study was to examine the effects of curcumin and/or deferoxamine on cell proliferation in a rat model of endometriosis. MATERIAL AND METHODS Thirty female 12-week-old albino Wistar rats, weighing 200-250 g, were used in this study. All the rats underwent ovariectomy and 0.1-mg β-estradiol 17-valerate pellets were placed intraperitoneally. An experimental model of endometriosis was created in all the animals. To create the experimental model, an approximately 1-cm long section of the uterus was taken, primarily from the right horn of the uterus. Autologous fragments were then placed between the peritoneum and muscle. The animals were divided into 3 groups: Group A, treated only with the vehicle used for curcumin and deferoxamine; group B, treated with curcumin (100 mg/kg body weight); and group C, treated with deferoxamine + curcumin (100 mg/kg body weight). After biopsy samples were obtained, the sections were stained with hematoxylin and eosin. Immunostaining for cytokeratin-7 and proliferating cell nuclear antigen (PCNA) was performed. Blood iron levels were measured using a Perkin Elmer AAnalyst 800 Atomic Absorption Spectrophotometer. RESULTS The endometrial implant size increased in Group A, but treatment with curcumin (p = 0.01) and deferoxamine + curcumin (p = 0.007) reduced the implant size. In ectopic endometrial epithelial cells, there were significant decreases in PCNA immunoreactivity between groups A and B (p = 0.044) and between groups A and C (p = 0.033). CONCLUSIONS Treatment with curcumin alone and/or in combination with deferoxamine contributed to a reduction in implant size and cell proliferation in a rat endometriosis model. Iron-chelating agents may act in the same manner when used in women with endometriosis; however, further studies from different perspectives are still needed.
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Affiliation(s)
- Gulnur Kizilay
- Department of Histology and Embryology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Yesim Hulya Uz
- Department of Histology and Embryology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Gulay Seren
- Department of Analytical Chemistry, Trakya University Faculty of Pharmacy, Edirne, Turkey
| | - Enis Ulucam
- Department of Anatomy, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Ali Yilmaz
- Department of Anatomy, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Ziya Cukur
- Experimental Animal Center, Trakya University, Edirne, Turkey
| | - Umit Ali Kayisli
- Department of Obstetrics and Gynecology, Morsani, College of Medicine, South Florida, USA
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85
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Babcock J, Herrera A, Coricor G, Karch C, Liu AH, Rivera-Gines A, Ko JL. Mechanism Governing Human Kappa-Opioid Receptor Expression under Desferrioxamine-Induced Hypoxic Mimic Condition in Neuronal NMB Cells. Int J Mol Sci 2017; 18:ijms18010211. [PMID: 28117678 PMCID: PMC5297840 DOI: 10.3390/ijms18010211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 01/03/2017] [Accepted: 01/11/2017] [Indexed: 12/30/2022] Open
Abstract
Cellular adaptation to hypoxia is a protective mechanism for neurons and relevant to cancer. Treatment with desferrioxamine (DFO) to induce hypoxia reduced the viability of human neuronal NMB cells. Surviving/attached cells exhibited profound increases of expression of the human kappa-opioid receptor (hKOR) and hypoxia inducible factor-1α (HIF-1α). The functional relationship between hKOR and HIF-1α was investigated using RT-PCR, Western blot, luciferase reporter, mutagenesis, siRNA and receptor-ligand binding assays. In surviving neurons, DFO increased HIF-1α expression and its amount in the nucleus. DFO also dramatically increased hKOR expression. Two (designated as HIFC and D) out of four potential HIF response elements of the hKOR gene (HIFA-D) synergistically mediated the DFO response. Mutation of both elements completely abolished the DFO-induced effect. The CD11 plasmid (containing HIFC and D with an 11 bp spacing) produced greater augmentation than that of the CD17 plasmid (HIFC and D with a 17 bp-spacing), suggesting that a proper topological interaction of these elements synergistically enhanced the promoter activity. HIF-1α siRNA knocked down the increase of endogenous HIF-1α messages and diminished the DFO-induced increase of hKOR expression. Increased hKOR expression resulted in the up-regulation of hKOR protein. In conclusion, the adaptation of neuronal hKOR under hypoxia was governed by HIF-1, revealing a new mechanism of hKOR regulation.
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Affiliation(s)
- Jennifer Babcock
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA.
| | - Alberto Herrera
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA.
| | - George Coricor
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA.
| | - Christopher Karch
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA.
| | - Alexander H Liu
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA.
| | - Aida Rivera-Gines
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA.
| | - Jane L Ko
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA.
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86
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Wang G, Shen G, Yin T. In vitro assessment of deferoxamine on mesenchymal stromal cells from tumor and bone marrow. Environ Toxicol Pharmacol 2017; 49:58-64. [PMID: 27915123 DOI: 10.1016/j.etap.2016.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 11/17/2016] [Accepted: 11/20/2016] [Indexed: 06/06/2023]
Abstract
Deferoxamine (DFO), an iron chelator, is commonly used to remove excess iron from the body. DFO has also been demonstrated to have anti-tumor effect. However, there is no available report on the effect of deferoxamine on mesenchymal stromal cells (MSCs). In this study, we first isolated tumor-associated MSCs (TAMSCs) from EG-7 tumors, which were positive for CD29, CD44, CD73, CD90 and CD105. Ex vivo cultured stem cells derived from tumor and bone marrow compartment were exposed to DFO. We demonstrated that DFO had growth-arresting and apoptosis-inducing effect on TAMSCs and bone marrow MSCs (BMMSCs). DFO also influenced the expression pattern of adhesion molecule VCAM-1 on both TAMSCs and BMMSCs. Notwithstanding its widespread use, our results here warrants caution in the application of DFO, and also highlights the need for careful evaluation of the bone marrow compartment in patients receiving DFO treatment.
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Affiliation(s)
- Guoping Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu 610041, PR China
| | - Guobo Shen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu 610041, PR China
| | - Tao Yin
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu 610041, PR China.
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87
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Amsaveni R, Sureshkumar M, Aravinth A, Mary JR, Vivekanandhan G. Production of Non-Ribosomal Peptide Synthetase (NRPS)-Dependent Siderophore by Aeromonas Isolates. Iran Biomed J 2016; 20:235-40. [PMID: 27155016 PMCID: PMC4983679 DOI: 10.7508/ibj.2016.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 11/25/2015] [Accepted: 11/03/2015] [Indexed: 11/04/2022]
Abstract
BACKGROUND Aeromonas species are Gram-negative ubiquitous bacteria, facultative anaerobic rods that infect both invertebrates and vertebrates. Various fish species develop hemorrhagic disease and furunculosis due to Aeromonas spp. Aeromonas strains generate certain active compounds such as siderophores, which are the final products of non-ribosomal peptide synthetase (NRPS) activity. The present study attempted to investigate the prevalence of Aeromonas isolates in marketed fish sources. We also examined the siderophore production ability of these isolates. METHODS Among the molecular tools, 16S rRNA analysis was used to identify Aeromonas species and their epidemiological distributions. The hemolytic activity of the strains and biochemical assays were used to confirm the identity of the isolates. We also determined the chemical nature of siderophores in these strains. RESULTS A total of seven Aeromonas isolates obtained from fish were included to determine the siderophore production. Of 7 isolates, 4 produced siderophore, and their chemical nature was also determined. The siderophore produced by Aeromonas was invariably found to be of hydroxamate. Four Aeromonas isolates were selected for PCR identification of NRPS-encoding gene. The conserved sequence was present in all four selected isolates. Furthermore, siderophores were qualitatively tested for their antibacterial activity against pathogenic bacteria and a significant level of inhibitory activity was observed in siderophores from the four isolates. CONCLUSION Our results showed the ability of the isolated strains in production of siderophores with a high level of activity against Salmonella paratyphi. These siderophores could find applications in biomedical industries.
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Affiliation(s)
- Ramasamy Amsaveni
- Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore-641029, Tamilnadu, India
| | - Muthusamy Sureshkumar
- Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore-641029, Tamilnadu, India
| | - Arthanari Aravinth
- K.S.R. College of Arts and Science, Tiruchengode-637215, Tamilnadu, India
| | - Joseph Reshma Mary
- Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore-641029, Tamilnadu, India
| | - Govindasami Vivekanandhan
- Farmer’s Bio-Fertilizers and Organics, 461, Sri Ragavendra Gardens, G.N. Mills Post, Coimbatore-641029, Tamilnadu, India
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88
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He XF, Lan Y, Zhang Q, Liu DX, Wang Q, Liang FY, Zeng JS, Xu GQ, Pei Z. Deferoxamine inhibits microglial activation, attenuates blood-brain barrier disruption, rescues dendritic damage, and improves spatial memory in a mouse model of microhemorrhages. J Neurochem 2016; 138:436-47. [PMID: 27167158 DOI: 10.1111/jnc.13657] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/01/2016] [Accepted: 05/06/2016] [Indexed: 11/30/2022]
Abstract
Cerebral microbleeds are strongly linked to cognitive dysfunction in the elderly. Iron accumulation plays an important role in the pathogenesis of intracranial hemorrhage. Deferoxamine (DFX), a metal chelator, removes iron overload and protects against brain damage in intracranial hemorrhage. In this study, the protective effects of DFX against microhemorrhage were examined in mice. C57BL6 and Thy-1 green fluorescent protein transgenic mice were subjected to perforating artery microhemorrhages on the right posterior parietal cortex using two-photon laser irradiation. DFX (100 mg/kg) was administered 6 h after microhemorrhage induction, followed by every 12 h for three consecutive days. The water maze task was conducted 7 days after induction of microhemorrhages, followed by measurement of blood-brain barrier permeability, iron deposition, microglial activation, and dendritic damage. Laser-induced multiple microbleeds in the right parietal cortex clearly led to spatial memory disruption, iron deposits, microglial activation, and dendritic damage, which were significantly attenuated by DFX, supporting the targeting of iron overload as a therapeutic option and the significant potential of DFX in microhemorrhage treatment. Irons accumulation after intracranial hemorrhage induced a serious secondary damage to the brain. We proposed that irons accumulation after parietal microhemorrhages impaired spatial cognition. After parietal multiple microhemorrhages, increased irons and ferritin contents induced blood-brain barrier disruption, microglial activation, and further induced dendrites loss, eventually impaired the water maze, deferoxamine treatment protected from these damages.
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Affiliation(s)
- Xiao-Fei He
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yue Lan
- Department of Rehabilitation Medicine, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qun Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dong-Xu Liu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qinmei Wang
- Key Laboratory on Assisted Circulation, Department of Cardiovascular Medicine, Ministry of Health, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Feng-Ying Liang
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jin-Sheng Zeng
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Guang-Qing Xu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhong Pei
- Guangdong Key Laboratory for Diagnosis and Treatment of Major Neurological Diseases, Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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89
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Trapet P, Avoscan L, Klinguer A, Pateyron S, Citerne S, Chervin C, Mazurier S, Lemanceau P, Wendehenne D, Besson-Bard A. The Pseudomonas fluorescens Siderophore Pyoverdine Weakens Arabidopsis thaliana Defense in Favor of Growth in Iron-Deficient Conditions. Plant Physiol 2016; 171:675-93. [PMID: 26956666 PMCID: PMC4854674 DOI: 10.1104/pp.15.01537] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 03/03/2016] [Indexed: 05/20/2023]
Abstract
Pyoverdines are siderophores synthesized by fluorescent Pseudomonas spp. Under iron-limiting conditions, these high-affinity ferric iron chelators are excreted by bacteria in the soil to acquire iron. Pyoverdines produced by beneficial Pseudomonas spp. ameliorate plant growth. Here, we investigate the physiological incidence and mode of action of pyoverdine from Pseudomonas fluorescens C7R12 on Arabidopsis (Arabidopsis thaliana) plants grown under iron-sufficient or iron-deficient conditions. Pyoverdine was provided to the medium in its iron-free structure (apo-pyoverdine), thus mimicking a situation in which it is produced by bacteria. Remarkably, apo-pyoverdine abolished the iron-deficiency phenotype and restored the growth of plants maintained in the iron-deprived medium. In contrast to a P. fluorescens C7R12 strain impaired in apo-pyoverdine production, the wild-type C7R12 reduced the accumulation of anthocyanins in plants grown in iron-deficient conditions. Under this condition, apo-pyoverdine modulated the expression of around 2,000 genes. Notably, apo-pyoverdine positively regulated the expression of genes related to development and iron acquisition/redistribution while it repressed the expression of defense-related genes. Accordingly, the growth-promoting effect of apo-pyoverdine in plants grown under iron-deficient conditions was impaired in iron-regulated transporter1 and ferric chelate reductase2 knockout mutants and was prioritized over immunity, as highlighted by an increased susceptibility to Botrytis cinerea This process was accompanied by an overexpression of the transcription factor HBI1, a key node for the cross talk between growth and immunity. This study reveals an unprecedented mode of action of pyoverdine in Arabidopsis and demonstrates that its incidence on physiological traits depends on the plant iron status.
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Affiliation(s)
- Pauline Trapet
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Laure Avoscan
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Agnès Klinguer
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Stéphanie Pateyron
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Sylvie Citerne
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Christian Chervin
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Sylvie Mazurier
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Philippe Lemanceau
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - David Wendehenne
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
| | - Angélique Besson-Bard
- Agroécologie, AgroSup Dijon, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (P.T., A.K., D.W., A. B.-B.);Agroécologie, AgroSup Dijon, Institut National de la Recherche Agronomique, Université de Bourgogne Franche-Comté, F-21000 Dijon, France (L.A., S.M., P.L.);Transcriptomic Platform of IPS2, Institute of Plant Sciences Paris-Saclay, Unité Mixte de Recherche 9213/Unité Mixte de Recherche 1403, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Université Paris-Sud, Université d'Evry, Université Paris-Diderot, Sorbonne Paris-Cité, F-91405 Orsay, France (S.P.);Institut National de la Recherche Agronomique-AgroParisTech, Unité Mixte de Recherche 1318, Institut J.-P. Bourgin, Centre de Versailles-Grignon, F-78026 Versailles, France (S.C.); andUniversité de Toulouse, Institut National Polytechnique de Toulouse-Ecole Nationale Supérieure Agronomique-Institut National de la Recherche Agronomique, Unité Mixte de Recherche 990 Génomique et Biotechnologie des Fruits, Castanet-Tolosan, CS 32607, F-31326, France (C.C.)
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90
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Saha M, Sarkar S, Sarkar B, Sharma BK, Bhattacharjee S, Tribedi P. Microbial siderophores and their potential applications: a review. Environ Sci Pollut Res Int 2016; 23:3984-99. [PMID: 25758420 DOI: 10.1007/s11356-015-4294-0] [Citation(s) in RCA: 286] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 02/27/2015] [Indexed: 05/18/2023]
Abstract
Siderophores are small organic molecules produced by microorganisms under iron-limiting conditions which enhance the uptake of iron to the microorganisms. In environment, the ferric form of iron is insoluble and inaccessible at physiological pH (7.35-7.40). Under this condition, microorganisms synthesize siderophores which have high affinity for ferric iron. These ferric iron-siderophore complexes are then transported to cytosol. In cytosol, the ferric iron gets reduced into ferrous iron and becomes accessible to microorganism. In recent times, siderophores have drawn much attention due to its potential roles in different fields. Siderophores have application in microbial ecology to enhance the growth of several unculturable microorganisms and can alter the microbial communities. In the field of agriculture, different types of siderophores promote the growth of several plant species and increase their yield by enhancing the Fe uptake to plants. Siderophores acts as a potential biocontrol agent against harmful phyto-pathogens and holds the ability to substitute hazardous pesticides. Heavy-metal-contaminated samples can be detoxified by applying siderophores, which explicate its role in bioremediation. Siderophores can detect the iron content in different environments, exhibiting its role as a biosensor. In the medical field, siderophore uses the "Trojan horse strategy" to form complexes with antibiotics and helps in the selective delivery of antibiotics to the antibiotic-resistant bacteria. Certain iron overload diseases for example sickle cell anemia can be treated with the help of siderophores. Other medical applications of siderophores include antimalarial activity, removal of transuranic elements from the body, and anticancer activity. The aim of this review is to discuss the important roles and applications of siderophores in different sectors including ecology, agriculture, bioremediation, biosensor, and medicine.
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Affiliation(s)
- Maumita Saha
- Department of Molecular Biology & Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura, 799022, India
| | - Subhasis Sarkar
- Department of Molecular Biology & Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura, 799022, India
| | - Biplab Sarkar
- National Institute of Abiotic Stress Management, Baramati, 413115, Pune, Maharashtra, India
| | - Bipin Kumar Sharma
- Department of Microbiology, Tripura University (A Central University), Suryamaninagar, Tripura, 799022, India
| | - Surajit Bhattacharjee
- Department of Molecular Biology & Bioinformatics, Tripura University (A Central University), Suryamaninagar, Tripura, 799022, India.
| | - Prosun Tribedi
- Department of Microbiology, Tripura University (A Central University), Suryamaninagar, Tripura, 799022, India.
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91
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Réus GZ, Dos Santos MAB, Abelaira HM, Titus SE, Carlessi AS, Matias BI, Bruchchen L, Florentino D, Vieira A, Petronilho F, Ceretta LB, Zugno AI, Quevedo J. Antioxidant treatment ameliorates experimental diabetes-induced depressive-like behaviour and reduces oxidative stress in brain and pancreas. Diabetes Metab Res Rev 2016; 32:278-88. [PMID: 26432993 DOI: 10.1002/dmrr.2732] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/19/2015] [Accepted: 09/11/2015] [Indexed: 01/30/2023]
Abstract
Studies have shown a relationship between diabetes mellitus (DM) and the development of major depressive disorder. Alterations in oxidative stress are associated with the pathophysiology of both diabetes mellitus and major depressive disorder. This study aimed to evaluate the effects of antioxidants N-acetylcysteine and deferoxamine on behaviour and oxidative stress parameters in diabetic rats. To this aim, after induction of diabetes by a single dose of alloxan, Wistar rats were treated with N-acetylcysteine or deferoxamine for 14 days, and then depressive-like behaviour was evaluated. Oxidative stress parameters were assessed in the prefrontal cortex, hippocampus, amygdala, nucleus accumbens and pancreas. Diabetic rats displayed depressive-like behaviour, and treatment with N-acetylcysteine reversed this alteration. Carbonyl protein levels were increased in the prefrontal cortex, hippocampus and pancreas of diabetic rats, and both N-acetylcysteine and deferoxamine reversed these alterations. Lipid damage was increased in the prefrontal cortex, hippocampus, amygdala and pancreas; however, treatment with N-acetylcysteine or deferoxamine reversed lipid damage only in the hippocampus and pancreas. Superoxide dismutase activity was decreased in the amygdala, nucleus accumbens and pancreas of diabetic rats. In diabetic rats, there was a decrease in catalase enzyme activity in the prefrontal cortex, amygdala, nucleus accumbens and pancreas, but an increase in the hippocampus. Treatment with antioxidants did not have an effect on the activity of antioxidant enzymes. In conclusion, animal model of diabetes produced depressive-like behaviour and oxidative stress in the brain and periphery. Treatment with antioxidants could be a viable alternative to treat behavioural and biochemical alterations induced by diabetes.
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Affiliation(s)
- Gislaine Z Réus
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
- Center for Translational Psychiatry, Department of Psychiatry and Behavioral Sciences, Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Maria Augusta B Dos Santos
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Helena M Abelaira
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Stephanie E Titus
- Center for Translational Psychiatry, Department of Psychiatry and Behavioral Sciences, Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Anelise S Carlessi
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Beatriz I Matias
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Livia Bruchchen
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Drielly Florentino
- Laboratório de Fisiopatologia Clínica e Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina, Tubarão, SC, Brazil
| | - Andriele Vieira
- Laboratório de Fisiopatologia Clínica e Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina, Tubarão, SC, Brazil
| | - Fabricia Petronilho
- Laboratório de Fisiopatologia Clínica e Experimental, Programa de Pós-graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina, Tubarão, SC, Brazil
| | - Luciane B Ceretta
- Laboratório de Saúde Coletiva, Programa de Pós-Graduação em Saúde Coletiva, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Alexandra I Zugno
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - João Quevedo
- Laboratório de Neurociências, Programa de Pós-Graduação em Ciências da Saúde, Unidade Acadêmica de Ciências da Saúde, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
- Center for Translational Psychiatry, Department of Psychiatry and Behavioral Sciences, Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
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92
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Zhdanov VV, Udut EV, Sotnikova LS, Burmina YV, Miroshnichenko LA, Simanina EV, Polyakova TY, Zyuz'kov GN, Chaikovskii AV, Stavrova LA, Fedorova EP, Dygai AM. Pathogenetic Evaluation of Dysfunction in the Erythron System of Experimental Animals during Modeling of Iron Deficiency Anemia in the Gestation Period. Bull Exp Biol Med 2016; 160:417-20. [PMID: 26902349 DOI: 10.1007/s10517-016-3185-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Indexed: 11/27/2022]
Abstract
We studied the dynamics of erythropoiesis in CBA mice during gestation against the background of treatment with iron-binding drug. The mechanisms of suppression of the bone marrow erythroid stem were evaluated. Administration of deferoxamine in a dose of 1 g/kg induced hypoplasia of the erythroid hemopoietic lineage. Suppression of bone marrow erythropoiesis manifested in a decrease of hemoglobin concentration and counts of reticulocytes, erythrocytes, and erythrokaryocytes. These changes were accompanied by a decrease in functional activity of erythropoietic precursors and secretion of erythropoietically active humoral factors by bone marrow myelokaryocytes. These data indicate that deferoxamine can be used for modeling of iron defi ciency anemia in pregnancy.
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Affiliation(s)
- V V Zhdanov
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - E V Udut
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia.
| | - L S Sotnikova
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - Ya V Burmina
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - L A Miroshnichenko
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - E V Simanina
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - T Yu Polyakova
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - G N Zyuz'kov
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - A V Chaikovskii
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - L A Stavrova
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - E P Fedorova
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - A M Dygai
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
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93
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Kohira N, West J, Ito A, Ito-Horiyama T, Nakamura R, Sato T, Rittenhouse S, Tsuji M, Yamano Y. In Vitro Antimicrobial Activity of a Siderophore Cephalosporin, S-649266, against Enterobacteriaceae Clinical Isolates, Including Carbapenem-Resistant Strains. Antimicrob Agents Chemother 2016; 60:729-34. [PMID: 26574013 PMCID: PMC4750680 DOI: 10.1128/aac.01695-15] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 11/06/2015] [Indexed: 11/20/2022] Open
Abstract
S-649266 is a novel siderophore cephalosporin antibiotic with a catechol moiety on the 3-position side chain. Two sets of clinical isolate collections were used to evaluate the antimicrobial activity of S-649266 against Enterobacteriaceae. These sets included 617 global isolates collected between 2009 and 2011 and 233 β-lactamase-identified isolates, including 47 KPC-, 49 NDM-, 12 VIM-, and 8 IMP-producers. The MIC90 values of S-649266 against the first set of Escherichia coli, Klebsiella pneumoniae, Serratia marcescens, Citrobacter freundii, Enterobacter aerogenes, and Enterobacter cloacae isolates were all ≤1 μg/ml, and there were only 8 isolates (1.3%) among these 617 clinical isolates with MIC values of ≥8 μg/ml. In the second set, the MIC values of S-649266 were ≤4 μg/ml against 109 strains among 116 KPC-producing and class B (metallo) carbapenemase-producing strains. In addition, S-649266 showed MIC values of ≤2 μg/ml against each of the 13 strains that produced other types of carbapenemases such as SME, NMC, and OXA-48. The mechanisms of the decreased susceptibility of 7 class B carbapenemase-producing strains with MIC values of ≥16 μg/ml are uncertain. This is the first report to demonstrate that S-649266, a novel siderophore cephalosporin, has significant antimicrobial activity against Enterobacteriaceae, including strains that produce carbapenemases such as KPC and NDM-1.
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Affiliation(s)
- Naoki Kohira
- Discovery Research Laboratory for Core Therapeutic Areas, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | - Joshua West
- GlaxoSmithKline, Collegeville, Pennsylvania, USA
| | - Akinobu Ito
- Discovery Research Laboratory for Core Therapeutic Areas, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | - Tsukasa Ito-Horiyama
- Discovery Research Laboratory for Core Therapeutic Areas, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | - Rio Nakamura
- Discovery Research Laboratory for Core Therapeutic Areas, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | - Takafumi Sato
- Discovery Research Laboratory for Core Therapeutic Areas, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | | | - Masakatsu Tsuji
- Discovery Research Laboratory for Core Therapeutic Areas, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | - Yoshinori Yamano
- Discovery Research Laboratory for Core Therapeutic Areas, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
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94
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Vartoukian SR, Adamowska A, Lawlor M, Moazzez R, Dewhirst FE, Wade WG. In Vitro Cultivation of 'Unculturable' Oral Bacteria, Facilitated by Community Culture and Media Supplementation with Siderophores. PLoS One 2016; 11:e0146926. [PMID: 26764907 PMCID: PMC4713201 DOI: 10.1371/journal.pone.0146926] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 12/23/2015] [Indexed: 11/18/2022] Open
Abstract
Over a third of oral bacteria are as-yet-uncultivated in-vitro. Siderophores have been previously shown to enable in-vitro growth of previously uncultivated bacteria. The objective of this study was to cultivate novel oral bacteria in siderophore-supplemented culture media. Various compounds with siderophore activity, including pyoverdines-Fe-complex, desferricoprogen and salicylic acid, were found to stimulate the growth of difficult-to-culture strains Prevotella sp. HOT-376 and Fretibacterium fastidiosum. Furthermore, pyrosequencing analysis demonstrated increased proportions of the as-yet-uncultivated phylotypes Dialister sp. HOT-119 and Megasphaera sp. HOT-123 on mixed culture plates supplemented with siderophores. Therefore a culture model was developed, which incorporated 15 μg siderophore (pyoverdines-Fe-complex or desferricoprogen) or 150 μl neat subgingival-plaque suspension into a central well on agar plates that were inoculated with heavily-diluted subgingival-plaque samples from subjects with periodontitis. Colonies showing satellitism were passaged onto fresh plates in co-culture with selected helper strains. Five novel strains, representatives of three previously-uncultivated taxa (Anaerolineae bacterium HOT-439, the first oral taxon from the Chloroflexi phylum to have been cultivated; Bacteroidetes bacterium HOT-365; and Peptostreptococcaceae bacterium HOT-091) were successfully isolated. All novel isolates required helper strains for growth, implying dependence on a biofilm lifestyle. Their characterisation will further our understanding of the human oral microbiome.
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Affiliation(s)
- Sonia R. Vartoukian
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Aleksandra Adamowska
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Megan Lawlor
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Rebecca Moazzez
- King’s College London Dental Institute, London, United Kingdom
| | - Floyd E. Dewhirst
- The Forsyth Institute, Cambridge, United States of America
- Harvard School of Dental Medicine, Boston, United States of America
| | - William G. Wade
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
- * E-mail:
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95
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Pluháček T, Lemr K, Ghosh D, Milde D, Novák J, Havlíček V. Characterization of microbial siderophores by mass spectrometry. Mass Spectrom Rev 2016; 35:35-47. [PMID: 25980644 DOI: 10.1002/mas.21461] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 12/19/2014] [Indexed: 05/28/2023]
Abstract
Siderophores play important roles in microbial iron piracy, and are applied as infectious disease biomarkers and novel pharmaceutical drugs. Inductively coupled plasma and molecular mass spectrometry (ICP-MS) combined with high resolution separations allow characterization of siderophores in complex samples taking advantages of mass defect data filtering, tandem mass spectrometry, and iron-containing compound quantitation. The enrichment approaches used in siderophore analysis and current ICP-MS technologies are reviewed. The recent tools for fast dereplication of secondary metabolites and their databases are reported. This review on siderophores is concluded with their recent medical, biochemical, geochemical, and agricultural applications in mass spectrometry context.
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Affiliation(s)
- Tomáš Pluháček
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
| | - Karel Lemr
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
| | - Dipankar Ghosh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, 110067, India
| | - David Milde
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
| | - Jiří Novák
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
| | - Vladimír Havlíček
- Department of Analytical Chemistry, Faculty of Science, Regional Centre of Advanced Technologies and Materials, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
- Institute of Microbiology, AS CR v.v.i., Videnska 1083, CZ 142 20, Prague 4, Czech Republic
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96
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Kim A, Kutschke A, Ehmann DE, Patey SA, Crandon JL, Gorseth E, Miller AA, McLaughlin RE, Blinn CM, Chen A, Nayar AS, Dangel B, Tsai AS, Rooney MT, Murphy-Benenato KE, Eakin AE, Nicolau DP. Pharmacodynamic Profiling of a Siderophore-Conjugated Monocarbam in Pseudomonas aeruginosa: Assessing the Risk for Resistance and Attenuated Efficacy. Antimicrob Agents Chemother 2015; 59:7743-52. [PMID: 26438502 PMCID: PMC4649189 DOI: 10.1128/aac.00831-15] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 09/29/2015] [Indexed: 01/05/2023] Open
Abstract
The objective of this study was to investigate the risk of attenuated efficacy due to adaptive resistance for the siderophore-conjugated monocarbam SMC-3176 in Pseudomonas aeruginosa by using a pharmacokinetic/pharmacodynamic (PK/PD) approach. MICs were determined in cation-adjusted Mueller-Hinton broth (MHB) and in Chelex-treated, dialyzed MHB (CDMHB). Spontaneous resistance was assessed at 2× to 16× the MIC and the resulting mutants sequenced. Efficacy was evaluated in a neutropenic mouse thigh model at 3.13 to 400 mg/kg of body weight every 3 h for 24 h and analyzed for association with free time above the MIC (fT>MIC). To closer emulate the conditions of the in vivo model, we developed a novel assay testing activity mouse whole blood (WB). All mutations were found in genes related to iron uptake: piuA, piuC, pirR, fecI, and pvdS. Against four P. aeruginosa isolates, SMC-3176 displayed predictable efficacy corresponding to the fT>MIC using the MIC in CDMHB (R(2) = 0.968 to 0.985), with stasis to 2-log kill achieved at 59.4 to 81.1%. Efficacy did not translate for P. aeruginosa isolate JJ 4-36, as the in vivo responses were inconsistent with fT>MIC exposures and implied a threshold concentration that was greater than the MIC. The results of the mouse WB assay indicated that efficacy was not predictable using the MIC for JJ 4-36 and four additional isolates, against which in vivo failures of another siderophore-conjugated β-lactam were previously reported. SMC-3176 carries a risk of attenuated efficacy in P. aeruginosa due to rapid adaptive resistance preventing entry via the siderophore-mediated iron uptake systems. Substantial in vivo testing is warranted for compounds using the siderophore approach to thoroughly screen for this in vitro-in vivo disconnect in P. aeruginosa.
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Affiliation(s)
- Aryun Kim
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Amy Kutschke
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - David E Ehmann
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Sara A Patey
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Jared L Crandon
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
| | - Elise Gorseth
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Alita A Miller
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Robert E McLaughlin
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Christina M Blinn
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - April Chen
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Asha S Nayar
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Brian Dangel
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Andy S Tsai
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - Michael T Rooney
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | | | - Ann E Eakin
- Infection Innovative Medicines, AstraZeneca Pharmaceuticals LP, Waltham, Massachusetts, USA
| | - David P Nicolau
- Center for Anti-Infective Research and Development, Hartford Hospital, Hartford, Connecticut, USA
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97
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Abstract
Bacteria secrete small molecules known as siderophores to acquire iron from their surroundings. For over 60 years, investigations into the bioinorganic chemistry of these molecules, including fundamental coordination chemistry studies, have provided insight into the crucial role that siderophores play in bacterial iron homeostasis. The importance of understanding the fundamental chemistry underlying bacterial life has been highlighted evermore in recent years because of the emergence of antibiotic-resistant bacteria and the need to prevent the global rise of these superbugs. Increasing reports of siderophores functioning in capacities other than iron transport have appeared recently, but reports of "non-classical" siderophore functions have long paralleled those of iron transport. One particular non-classical function of these iron chelators, namely antibiotic activity, was documented before the role of siderophores in iron transport was established. In this Perspective, we present an exposition of past and current work into non-classical functions of siderophores and highlight the directions in which we anticipate that this research is headed. Examples include the ability of siderophores to function as zincophores, chalkophores, and metallophores for a variety of other metals, sequester heavy metal toxins, transport boron, act as signalling molecules, regulate oxidative stress, and provide antibacterial activity.
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Affiliation(s)
- Timothy C Johnstone
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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98
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Jeong S, Moon HS, Nam K. Increased ecological risk due to the hyperaccumulation of As in Pteris cretica during the phytoremediation of an As-contaminated site. Chemosphere 2015; 122:1-7. [PMID: 25441929 DOI: 10.1016/j.chemosphere.2014.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 09/30/2014] [Accepted: 10/03/2014] [Indexed: 06/04/2023]
Abstract
Ecological risk due to the hyperaccumulation of As in Pteris cretica during phytoremediation was evaluated at an abandoned As-contaminated site. Five receptor groups representing terrestrial invertebrates, avian insectivores, small mammals, herbivores, and omnivores were selected as potentially affected ecological receptors. Soil and food ingestion were considered as major exposure pathways. Phytoremediation was performed with P.cretica only and with both P.cretica and siderophores to enhance plant uptake of As. Ecological hazard index (EHI) values for the small mammal greatly exceeded 1.0 even after three weeks of growth regardless of siderophore application, probably due to its limited home range. For the mammalian herbivore, which mainly consumes plant foliage, the EHI values were greater than 5.73 after seven weeks without siderophore application, but the value increased sharply to 29.3 at seven weeks when siderophores were applied. This increased risk could be attributed to the facilitated translocation of As from roots to stems and leaves in P.cretica. Our results suggest that, when a phytoremediation strategy is considered for metals remediation, its ecological consequences should be taken into account to prevent the spread of hyperaccumulated heavy metals throughout the food chain of ecological receptors. Uncertainties involved in the ecological risk assessment process were also discussed.
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Affiliation(s)
- Seulki Jeong
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, South Korea
| | - Hee Sun Moon
- Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources, 124 Gwahang-no, Yuseong-gu, Daejeon 305-350, South Korea
| | - Kyoungphile Nam
- Department of Civil and Environmental Engineering, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 151-742, South Korea.
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99
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Ferret C, Cornu JY, Elhabiri M, Sterckeman T, Braud A, Jezequel K, Lollier M, Lebeau T, Schalk IJ, Geoffroy VA. Effect of pyoverdine supply on cadmium and nickel complexation and phytoavailability in hydroponics. Environ Sci Pollut Res Int 2015; 22:2106-2116. [PMID: 25167822 DOI: 10.1007/s11356-014-3487-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 08/19/2014] [Indexed: 06/03/2023]
Abstract
Siderophores are chelators with a high selectivity for Fe(III) and a good affinity for divalent metals, including Cd(II) and Ni(II). Inoculation with siderophore-producing bacteria (SPB) has thus been proposed as an alternative to chelator supply in phytoremediation. Accurate assessments of the potential of this association require a dissection of the interaction of siderophores with metals at the soil-root interface. This study focuses on pyoverdine (Pvd), the main siderophore produced by Pseudomonas aeruginosa. We first assessed the ability of Pvd to coordinate Ni(II). The stability constant of Pvd-Ni(II) (log K (L'Ni) = 10.9) was found to be higher than that of Pvd-Cd(II) (log K (L'Cd) = 8.2). We then investigated the effect of a direct supply of Pvd on the mobilization, speciation, and phytoavailability of Cd and Ni in hydroponics. When supplied at a concentration of 50 μM, Pvd selectively promoted Ni mobilization from smectite. It decreased plant Ni and Cd contents and the free ionic fractions of these two metals, consistent with the free ion activity model. Pvd had a more pronounced effect for Ni than for Cd, as predicted from its coordination properties. Inoculation with P. aeruginosa had a similar effect on Ni phytoavailability to the direct supply of Pvd.
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Affiliation(s)
- C Ferret
- UMR 7242 CNRS-Université de Strasbourg, ESBS, 300 Boulevard Sébastien Brant, F-67412, Illkirch cedex, France
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100
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Gutierrez E, Richardson DR, Jansson PJ. The anticancer agent di-2-pyridylketone 4,4-dimethyl-3-thiosemicarbazone (Dp44mT) overcomes prosurvival autophagy by two mechanisms: persistent induction of autophagosome synthesis and impairment of lysosomal integrity. J Biol Chem 2014; 289:33568-89. [PMID: 25301941 PMCID: PMC4246109 DOI: 10.1074/jbc.m114.599480] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/08/2014] [Indexed: 12/19/2022] Open
Abstract
Autophagy functions as a survival mechanism during cellular stress and contributes to resistance against anticancer agents. The selective antitumor and antimetastatic chelator di-2-pyridylketone 4,4-dimethyl-3-thiosemicarbazone (Dp44mT) causes lysosomal membrane permeabilization and cell death. Considering the integral role of lysosomes in autophagy and cell death, it was important to assess the effect of Dp44mT on autophagy to further understand its mechanism of action. Notably, Dp44mT affected autophagy by two mechanisms. First, concurrent with its antiproliferative activity, Dp44mT increased the expression of the classical autophagic marker LC3-II as a result of induced autophagosome synthesis. Second, this effect was supplemented by a reduction in autophagosome degradation as shown by the accumulation of the autophagic substrate and receptor p62. Conversely, the classical iron chelator desferrioxamine induced autophagosome accumulation only by inhibiting autophagosome degradation. The formation of redox-active iron or copper Dp44mT complexes was critical for its dual effect on autophagy. The cytoprotective antioxidant N-acetylcysteine inhibited Dp44mT-induced autophagosome synthesis and p62 accumulation. Importantly, Dp44mT inhibited autophagosome degradation via lysosomal disruption. This effect prevented the fusion of lysosomes with autophagosomes to form autolysosomes, which is crucial for the completion of the autophagic process. The antiproliferative activity of Dp44mT was suppressed by Beclin1 and ATG5 silencing, indicating the role of persistent autophagosome synthesis in Dp44mT-induced cell death. These studies demonstrate that Dp44mT can overcome the prosurvival activity of autophagy in cancer cells by utilizing this process to potentiate cell death.
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Affiliation(s)
- Elaine Gutierrez
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Blackburn Building (D06), University of Sydney, Sydney, New South Wales 2006, Australia
| | - Des R Richardson
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Blackburn Building (D06), University of Sydney, Sydney, New South Wales 2006, Australia
| | - Patric J Jansson
- From the Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Blackburn Building (D06), University of Sydney, Sydney, New South Wales 2006, Australia
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