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Mafla C, Kolenovic B, Centeno D, Darwish J, Cabinian K, Richards K, Cattabiani T, Nunez J, Drwiega TJ, Li W, Iwanicki M, Sciorra L, Li C, Traba C. Application of Argon Plasma Technology for the Synthesis of Anti-Infective Copper Nanoparticles. ACS Appl Bio Mater 2024; 7:1588-1599. [PMID: 38437727 DOI: 10.1021/acsabm.3c01097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Indexed: 03/06/2024]
Abstract
The synthesis of copper nanoparticles (CuNPs) was accomplished by using a rapid, green, and versatile argon plasma reduction method that involves solvent extraction. With this method, a plasma-solid state interaction forms and CuNPs can be synthesized from copper(II) sulfate using a low-pressure, low-temperature argon plasma. Characterization studies of the CuNPs revealed that when a metal precursor is treated under optimal experimental conditions of 80 W of argon plasma for 300 s, brown CuNPs are synthesized. However, when those same brown CuNPs are placed in Milli-Q water for a period of 10 days, oxidation occurs and green CuNPs are formed. Confirmation of the chemical identity of the CuNPs was performed by using X-ray photoelectron spectroscopy. The results reveal that the brown CuNPs are predominantly Cu0 or what we refer to as CuNPs, while the green CuNPs are a mixture of Cu0 and Cu(OH)2 NPs. Upon further characterization of both brown and green CuNPs with scanning electron microscopy (SEM), the results depict brown CuNPs with a rod-like shape and approximate dimensions of 40 nm × 160 nm, while the green CuNPs were smaller in size, with dimensions of 40-80 nm, and more of a round shape. When testing the antibacterial activity of both brown and green CuNPs, our findings demonstrate the effectiveness of both CuNPs against Escherichia coli and Staphylococcus aureus bacteria at a concentration of 17 μg/mL. The inactivation of S. aureus and E. coli 7-day-old biofilms required CuNP concentrations of 99 μg/mL. SEM images of treated 7-day-old S. aureus and E. coli biofilms depict cell membranes that are completely damaged, suggesting a physical killing mechanism. In addition, when the same concentration of CuNPs used to inactivate biofilms were tested with human fibroblasts, both brown and green CuNPs were found to be biocompatible.
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Affiliation(s)
- Camila Mafla
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
| | - Belmin Kolenovic
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
| | - Daniel Centeno
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Janeen Darwish
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
| | - Katrina Cabinian
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
| | - Kyle Richards
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
| | - Thomas Cattabiani
- Fourth State of Matter Technologies Corporation, Bayonne, New Jersey 07002, United States
| | - Jonathan Nunez
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
| | - Thomas J Drwiega
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
| | - Wanlu Li
- Department of Chemistry and Biochemistry, Montclair State University, Montclair, New Jersey 07043, United States
| | - Marcin Iwanicki
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Leonard Sciorra
- Department of Applied Science and Technology, Saint Peter's University, Jersey City, New Jersey 07306, United States
| | - Clive Li
- Department of STEM, Hudson County Community College, Jersey City, New Jersey 07306, United States
| | - Christian Traba
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, New Jersey 07666, United States
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Centeno D, Farsinejad S, Kochetkova E, Volpari T, Klupczynska-Gabryszak A, Kung D, Polotaye T, Hyde E, Greenberg M, Pavlovic T, Alshehri S, Sullivan W, Plewa S, Vakifahmetoglu-Norberg H, Monsma FJ, Muller PAJ, Matysiak J, Zaborowski M, DiFeo A, Andres-Martin L, Norberg E, Iwanicki M. The nutritional supplement taurine activates p53-dependent and independent tumor suppressor mechanisms in various cellular models of ovarian cancer. bioRxiv 2023:2023.02.24.529893. [PMID: 36909636 PMCID: PMC10002676 DOI: 10.1101/2023.02.24.529893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Loss of treatment-induced ovarian carcinoma (OC) growth suppression poses a major clinical challenge because it leads to disease recurrence. Therefore, there is a compelling need for well- -tolerated approaches that can support tumor growth-suppression after therapy is stopped. We have profiled ascites as OC tumor microenvironments to search for potential non-toxic soluble components that would activate tumor suppressor pathways in OC cells. Our investigations revealed that low levels of taurine, a non-proteogenic sulfonic amino acid, were present within OC ascites. Taurine supplementation, beyond levels found in ascites, induced growth suppression without causing cytotoxicity in various OC cells, including chemotherapy-resistant cell clones and patient-derived organoids representing primary or chemotherapy recovered disease. Inhibition of proliferation by taurine was linked to increased mutant or wild-type p53 proteins binding to DNA, induction of p21, and independently of p53, TIGAR expression. Taurine-induced activation of p21 and TIGAR was associated with suppression of cell-cycle progression, glycolysis, and mitochondrial respiration. Expression of p21 or TIGAR in OC cells mimicked taurine-induced growth suppression. Our studies support the potential therapeutic value of taurine supplementation in OC.
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Alshehri S, Pavlovič T, Farsinejad S, Behboodi P, Quan L, Centeno D, Kung D, Rezler M, Lee W, Jasiński P, Dziabaszewska E, Nowak-Markwitz E, Kalyon D, Zaborowski MP, Iwanicki M. Extracellular Matrix Modulates Outgrowth Dynamics in Ovarian Cancer. Adv Biol (Weinh) 2022; 6:e2200197. [PMID: 36084257 PMCID: PMC9772079 DOI: 10.1002/adbi.202200197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 07/15/2022] [Revised: 08/18/2022] [Indexed: 01/28/2023]
Abstract
Ovarian carcinoma (OC) forms outgrowths that extend from the outer surface of an afflicted organ into the peritoneum. OC outgrowth formation is poorly understood due to the limited availability of cell culture models examining the behavior of cells that form outgrowths. Prompted by immunochemical evaluation of extracellular matrix (ECM) components in human tissues, laminin and collagen-rich ECM-reconstituted cell culture models amenable to studies of cell clusters that can form outgrowths are developed. It is demonstrated that ECM promotes outgrowth formation in fallopian tube non-ciliated epithelial cells (FNE) expressing mutant p53 and various OC cell lines. Outgrowths are initiated by cells that underwent outward translocation and retained the ability to intercalate into mesothelial cell monolayers. Electron microscopy, optical coherence tomography, and small amplitude oscillatory shear experiments reveal that increased ECM levels led to increased fibrous network thickness and high shear elasticity of the microenvironment. These physical characteristics are associated with outgrowth suppression. The low ECM microenvironment mimicks the viscoelasticity of malignant peritoneal fluid (ascites) and supports cell proliferation, cell translocation, and outgrowth formation. These results highlight the importance of the ECM microenvironment in modulating OC growth and can provide additional insights into the mode of dissemination of primary and recurrent ovarian tumors.
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Affiliation(s)
- Sarah Alshehri
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Tonja Pavlovič
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Sadaf Farsinejad
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Panteha Behboodi
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Li Quan
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Daniel Centeno
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Douglas Kung
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
| | - Marta Rezler
- Poznań University of Medical Sciences, Poznań, Poland
| | - Woo Lee
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Piotr Jasiński
- Department of Pathology, Poznań University of Medical Sciences, Poznań, Poland
| | | | - Ewa Nowak-Markwitz
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Division of Gynecologic Oncology, Poznań University of Medical Sciences, Poznań, Poland
| | - Dilhan Kalyon
- Department of Chemical Engineering, Stevens Institute of Technology, Hoboken, USA
| | - Mikołaj P. Zaborowski
- Department of Gynecology, Obstetrics and Gynecologic Oncology, Division of Gynecologic Oncology, Poznań University of Medical Sciences, Poznań, Poland
| | - Marcin Iwanicki
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, USA
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Darwish M, Mafla-Gonzalez C, Kolenovic B, Deremer A, Centeno D, Liu T, Kim DY, Cattabiani T, Drwiega TJ, Kumar I, Li C, Traba C. Rapid Synthesis of Metal Nanoparticles Using Low-Temperature, Low-Pressure Argon Plasma Chemistry and Self-Assembly. Green Chem 2022; 24:8142-8154. [PMID: 37153712 PMCID: PMC10162583 DOI: 10.1039/d2gc02592b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The synthesis of metal nanoparticles has become a priority for the advancement of nanotechnology. In attempts to create these nanoparticles, several different methods: chemistry, physics, and biology, have all been used. In this study, we report the reduction of cations using argon plasma chemistry to produce nanoparticles of gold (AuNPs), silver (AgNPs), and copper (CuNPs). Although other groups have used plasma-reduction methods to synthesize metal nanoparticles from their cation counterparts, these approaches often require plasma|liquid state interactions, high temperature, specific combinations of gases, and extended treatment times (>10 minutes), for which only specific cations (noble or non-noble) may be reduced. As a result, we have developed a non-thermal, low-pressure argon-plasma|solid state approach for the reduction of both noble and non-noble cations. More specifically, when 50-μL droplets of 2-mM solutions of gold(III) chloride, silver nitrate, or copper(II) sulfate are exposed to vacuum, they undergo an evaporation process. As the pressure in the chamber decreases to 220 mtorr, the droplets become completely evaporated, leaving behind a metal precursor. Nucleation and growth studies reveal that when the metal precursors of gold(III) chloride, silver nitrate, and copper(II) sulfate are treated with 80 watts of argon plasma for 5, 60, and 150 seconds, respectively, nanoparticles could be synthesized with efficiency rates of upwards of 98%. The size of nanoparticles synthesized in this work was studied using Scanning Electron Microscopy, and the scattering properties of the nanoparticles was studied using UV/Vis spectroscopy. Transmission Electron Microscopy with corresponding elemental analysis was also very useful in confirming the identity of the synthesized nanoparticles. The results from this study reveal that we have synthesized metal nanoparticles with distinct chemical and physical properties. Scanning Electron Microscopy depicts AgNPs with a round-shape and diameters from 40 - 80 nm, while AuNPs were hexagonal, with sizes from 40 - 80 nm, and CuNPs were rod-shaped, with dimensions 40 by 160 nm. Our findings demonstrate that the argon plasma approach used in this study is a rapid, green, and versatile reduction method for the synthesis of both noble and non-noble metal nanoparticles.
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Affiliation(s)
- Marjan Darwish
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Camila Mafla-Gonzalez
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Belmin Kolenovic
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Adrianna Deremer
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Daniel Centeno
- Fourth State of Matter Technologies Corporation, Bayonne, NJ 07306, USA
| | - Tianchi Liu
- Fourth State of Matter Technologies Corporation, Bayonne, NJ 07306, USA
| | - Deok-Yang Kim
- Bergen County Technical Schools, Hackensack, NJ 07601, USA
| | - Thomas Cattabiani
- Fourth State of Matter Technologies Corporation, Bayonne, NJ 07306, USA
| | - Thomas J. Drwiega
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Ish Kumar
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Clive Li
- Department of STEM, Hudson County Community College, Jersey City, NJ 07306, USA
| | - Christian Traba
- Department of Chemistry, Biochemistry and Physics, Fairleigh Dickinson University, Teaneck, NJ 07666, USA
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Liu T, Stradford C, Ambi A, Centeno D, Roca J, Cattabiani T, Drwiega TJ, Li C, Traba C. Plasma-initiated graft polymerization of carbon nanoparticles as nano-based drug delivery systems. Biofouling 2022; 38:13-28. [PMID: 34839780 PMCID: PMC9617291 DOI: 10.1080/08927014.2021.2008376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/31/2021] [Accepted: 11/15/2021] [Indexed: 05/25/2023]
Abstract
Plasma-initiated free radical polymerization was used to engineer carbon nanoparticles (CNPs) with tailored chemical and physical properties. Following surface modification, CNPs were loaded with a highly effective anti-infection agent called metal-free Russian propolis ethanol extract (MFRPEE), thus, creating nano-based drug delivery systems (NBDDSs). The loading of MFRPEE onto grafted CNPs occurred naturally through both electrostatic interactions and hydrogen bonding. When constructed under optimal experimental conditions, the NBDDSs were stable under physiologic conditions, and demonstrated enhanced anti-biofilm activity when compared with free MFRPEE. Mechanistic studies revealed that the enhanced anti-infectious activity of the NBDDSs was attributed to the modified surface chemistry of grafted CNPs. More specifically, the overall positive surface charge on grafted CNPs, which stems from quaternary ammonium polymer brushes covalently bound to the CNPs, provides NBDDSs with the ability to specifically target negatively charged components of biofilms. When studying the release profile of MFRPEE from the modified CNPs, acidic components produced by a biofilm triggered the release of MFRPEE bound to the NBDDS. Once in its free form, the anti-infectious properties of MFRPEE became activated and damaged the extracellular polymeric matrix (EPM) of the biofilm. Once the architecture of the biofilm became compromised, the EPM was no longer capable of protecting the bacteria encapsulated within the biofilm from the anti-infectious agent. Consequently, exposure of bacteria to MFRPEE led to bacterial cell death and biofilm inactivation. The results obtained from this study begin to examine the potential application of NBDDSs for the treatment of healthcare-associated infections (HCAIs).
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Affiliation(s)
- Tianchi Liu
- Department of PD Chem ITech, Newcastle, WA 98059, USA
| | | | - Ashwin Ambi
- Department of Fourth State of Matter Technologies Corporation, Bayonne, NJ 07306, USA
| | - Daniel Centeno
- Department of Fourth State of Matter Technologies Corporation, Bayonne, NJ 07306, USA
| | - Jasmine Roca
- Department of Chemistry, Biochemistry and Physics Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Thomas Cattabiani
- Department of Fourth State of Matter Technologies Corporation, Bayonne, NJ 07306, USA
| | - Thomas J. Drwiega
- Department of Chemistry, Biochemistry and Physics Fairleigh Dickinson University, Teaneck, NJ 07666, USA
| | - Clive Li
- Department of STEM, Hudson County Community College, Jersey City, NJ 07306, USA
| | - Christian Traba
- Department of Chemistry, Biochemistry and Physics Fairleigh Dickinson University, Teaneck, NJ 07666, USA
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Lécuyer L, Dalle C, Micheau P, Pétéra M, Centeno D, Lyan B, Morand C, Galan P, Hercberg S, Rossary A, Demidem A, Vasson MP, Partula V, Deschasaux M, Srour B, Latino-Martel P, Kesse-Guyot E, Durand S, Pujos-Guillot E, Manach C, Mathilde T. Signatures métabolomiques associés à des profils alimentaires spécifiques dans la cohorte SU.VI.MAX. NUTR CLIN METAB 2019. [DOI: 10.1016/j.nupar.2019.01.427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lécuyer L, Dalle C, Lyan B, Petera M, Lagree M, Rossary A, Demidem A, Ferreira T, Centeno D, Galan P, Hercberg S, Deschasaux M, Partula V, Srour B, Latino-Martel P, Kesse-Guyot E, Manach C, Vasson MP, Durand S, Pujos-Guillot E, Touvier M. Signatures métabolomiques par spectrométrie de masse et risque de cancer du sein. NUTR CLIN METAB 2018. [DOI: 10.1016/j.nupar.2018.09.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ambi A, Bryan J, Borbon K, Centeno D, Liu T, Chen TP, Cattabiani T, Traba C. Are Russian propolis ethanol extracts the future for the prevention of medical and biomedical implant contaminations? Phytomedicine 2017; 30:50-58. [PMID: 28545669 DOI: 10.1016/j.phymed.2017.03.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 09/09/2016] [Revised: 03/16/2017] [Accepted: 03/28/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Most studies reveal that the mechanism of action of propolis against bacteria is functional rather than structural and is attributed to a synergism between the compounds in the extracts. HYPOTHESIS/PURPOSE Propolis is said to inhibit bacterial adherence, division, inhibition of water-insoluble glucan formation, and protein synthesis. However, it has been shown that the mechanism of action of Russian propolis ethanol extracts is structural rather than functional and may be attributed to the metals found in propolis. If the metals found in propolis are removed, cell lysis still occurs and these modified extracts may be used in the prevention of medical and biomedical implant contaminations. STUDY DESIGN The antibacterial activity of metal-free Russian propolis ethanol extracts (MFRPEE) on two biofilm forming bacteria: penicillin-resistant Staphylococcus aureus and Escherichia coli was evaluated using MTT and a Live/Dead staining technique. Toxicity studies were conducted on mouse osteoblast (MC-3T3) cells using the same viability assays. METHODS In the MTT assay, biofilms were incubated with MTT at 37°C for 30min. After washing, the purple formazan formed inside the bacterial cells was dissolved by SDS and then measured using a microplate reader by setting the detecting and reference wavelengths at 570nm and 630nm, respectively. Live and dead distributions of cells were studied by confocal laser scanning microscopy. RESULTS Complete biofilm inactivation was observed when biofilms were treated for 40h with 2µg/ml of MFRPEE. Results indicate that the metals present in propolis possess antibacterial activity, but do not have an essential role in the antibacterial mechanism of action. Additionally, the same concentration of metals found in propolis samples, were toxic to tissue cells. Comparable to samples with metals, metal free samples caused damage to the cell membrane structures of both bacterial species, resulting in cell lysis. CONCLUSION Results suggest that the structural mechanism of action of Russian propolis ethanol extracts stem predominate from the organic compounds. Further studies revealed drastically reduced toxicity to mammalian cells when metals were removed from Russian propolis ethanol extracts, suggesting a potential for medical and biomedical applications.
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Affiliation(s)
- Ashwin Ambi
- Department of Chemistry, Saint Peter's University, Jersey City, NJ 07306, USA
| | - Julia Bryan
- Department of Chemistry, Saint Peter's University, Jersey City, NJ 07306, USA
| | - Katherine Borbon
- Department of Chemistry, Saint Peter's University, Jersey City, NJ 07306, USA
| | - Daniel Centeno
- Department of Chemistry, Saint Peter's University, Jersey City, NJ 07306, USA
| | - Tianchi Liu
- Department of Biomedical Engineering, Chemistry, and Biological Sciences, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Tung Po Chen
- Department of Civil, Environmental and Ocean Engineering, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Thomas Cattabiani
- Department of Biomedical Engineering, Chemistry, and Biological Sciences, Charles V. Schaefer School of Engineering and Sciences, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Christian Traba
- Department of Chemistry, Saint Peter's University, Jersey City, NJ 07306, USA.
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Mast C, Savary-Auzeloux I, Remond D, Pouyet C, Centeno D, Voyard G, Combaret L, Dardevet D, Papet I. Repeated cures with paracetamol worsen sarcopenia in old rats with suboptimal food intake. J Physiol Pharmacol 2016; 67:759-768. [PMID: 28011956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 07/21/2016] [Indexed: 06/06/2023]
Abstract
The availability of all amino acids is of prime importance to prevent the ageing-associated decrease in skeletal muscle mass i.e. sarcopenia. Cysteine is the precursor of sulfate and glutathione that are both utilized in the liver to detoxify paracetamol (APAP). Cysteine availability could become limiting under repeated cures with APAP, especially when food intake is suboptimal. The aim of the study was to determine whether repeated cures with APAP could worsen sarcopenia. Twenty-two-month-old male Wistar rats received 3 two-week-long cures of APAP (1% of the diet) intercalated with washout periods of two weeks (APAP group). They were compared to untreated control rats euthanatized prior to the experiment (CT group) and rats pair-fed to the APAP group (PF group). Skeletal muscle mass and protein metabolism, as well as plasma amino acids and glutathione were assessed at the end of the third cure. APAP cures reduced food intake by 33, 23 and 33 % during the successive cures leading to an overall body weight loss of 8%. APAP rats lost lean mass during the experiment (-11%). This loss tended (P = 0.09) to be higher than in the PF group (-9%). The mass of hind limb muscles and the absolute synthesis rate of muscle proteins were 13 and 17% lower in the APAP group than the PF group, respectively. Plasma free cyst(e)ine (i.e. all free forms of cysteine not bound to proteins) and glutathione were 25% lower in the APAP group than the PF group. Repeated cures with APAP worsened sarcopenia in old rats with suboptimal food intake likely as a consequence of the APAP-induced shortage in cysteine/glutathione. Clinical studies are needed to clarify the effect of repeated treatments with paracetamol on skeletal muscle mass in older persons having suboptimal or insufficient dietary intakes.
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Affiliation(s)
- C Mast
- University of Clermont, University of Auvergne, Human Nutrition Unit, Clermont-Ferrand, France
- INRA, UMR 1019, UNH, CRNH Auvergne, Clermont-Ferrand, France
| | - I Savary-Auzeloux
- University of Clermont, University of Auvergne, Human Nutrition Unit, Clermont-Ferrand, France
- INRA, UMR 1019, UNH, CRNH Auvergne, Clermont-Ferrand, France
| | - D Remond
- University of Clermont, University of Auvergne, Human Nutrition Unit, Clermont-Ferrand, France
- INRA, UMR 1019, UNH, CRNH Auvergne, Clermont-Ferrand, France
| | - C Pouyet
- Metabolism Exploration Platform, INRA, Auvergne-Rhone-Alpes Center, UMR 1019 Human Nutrition, Saint-Genes-Champanelle, France
| | - D Centeno
- Metabolism Exploration Platform, INRA, Auvergne-Rhone-Alpes Center, UMR 1019 Human Nutrition, Saint-Genes-Champanelle, France
| | - G Voyard
- University of Clermont, Blaise Pascal University, Department of Chemistry of Clermont-Ferrand, Photochemistry Team, Clermont-Ferrand, France
| | - L Combaret
- University of Clermont, University of Auvergne, Human Nutrition Unit, Clermont-Ferrand, France
- INRA, UMR 1019, UNH, CRNH Auvergne, Clermont-Ferrand, France
| | - D Dardevet
- University of Clermont, University of Auvergne, Human Nutrition Unit, Clermont-Ferrand, France
- INRA, UMR 1019, UNH, CRNH Auvergne, Clermont-Ferrand, France
| | - I Papet
- University of Clermont, University of Auvergne, Human Nutrition Unit, Clermont-Ferrand, France.
- INRA, UMR 1019, UNH, CRNH Auvergne, Clermont-Ferrand, France
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Hollowell AC, Regus JU, Gano KA, Bantay R, Centeno D, Pham J, Lyu JY, Moore D, Bernardo A, Lopez G, Patil A, Patel S, Lii Y, Sachs JL. Epidemic Spread of Symbiotic and Non-Symbiotic Bradyrhizobium Genotypes Across California. Microb Ecol 2016; 71:700-710. [PMID: 26467244 DOI: 10.1007/s00248-015-0685-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 09/28/2015] [Indexed: 06/05/2023]
Abstract
The patterns and drivers of bacterial strain dominance remain poorly understood in natural populations. Here, we cultured 1292 Bradyrhizobium isolates from symbiotic root nodules and the soil root interface of the host plant Acmispon strigosus across a >840-km transect in California. To investigate epidemiology and the potential role of accessory loci as epidemic drivers, isolates were genotyped at two chromosomal loci and were assayed for presence or absence of accessory "symbiosis island" loci that encode capacity to form nodules on hosts. We found that Bradyrhizobium populations were very diverse but dominated by few haplotypes-with a single "epidemic" haplotype constituting nearly 30 % of collected isolates and spreading nearly statewide. In many Bradyrhizobium lineages, we inferred presence and absence of the symbiosis island suggesting recurrent evolutionary gain and or loss of symbiotic capacity. We did not find statistical phylogenetic evidence that the symbiosis island acquisition promotes strain dominance and both symbiotic and non-symbiotic strains exhibited population dominance and spatial spread. Our dataset reveals that a strikingly few Bradyrhizobium genotypes can rapidly spread to dominate a landscape and suggests that these epidemics are not driven by the acquisition of accessory loci as occurs in key human pathogens.
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Affiliation(s)
- A C Hollowell
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - J U Regus
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - K A Gano
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - R Bantay
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - D Centeno
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - J Pham
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - J Y Lyu
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - D Moore
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - A Bernardo
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - G Lopez
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - A Patil
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - S Patel
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - Y Lii
- Department of Biology, University of California, Riverside, CA, 92521, USA
| | - J L Sachs
- Department of Biology, University of California, Riverside, CA, 92521, USA.
- Institute for Integrative Genome Biology, University of California, Riverside, CA, 95616, USA.
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Mast C, Pourpe C, Savary-Auzeloux I, Rémond D, Migne C, Centeno D, Voyard G, Dardevet D, Papet I. O50: Une supplémentation en cystéine permet de prévenir la perte de masse musculaire induite par des cures répétées de paracétamol chez le rat âgé. NUTR CLIN METAB 2014. [DOI: 10.1016/s0985-0562(14)70626-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mast C, Pouyet C, Centeno D, Djelloul-Mazouz M, Dardevet D, Papet I. O11 Le traitement par cures au paracétamol induit une réduction de la masse et la synthèse des protéines musculaires chez le rat âgé. NUTR CLIN METAB 2013. [DOI: 10.1016/s0985-0562(13)70283-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
Recent characterization of the whole saliva proteome led to contradictory pictures concerning the complexity of its proteome. In this work, 110 proteins were analysed by mass spectrometry allowing the identification of 10 accessions previously not detected on protein two-dimensional maps, including myosin heavy chain (fast skeletal muscle, IIA and IIB), phosphatidylethanolamine binding protein, secretory actin-binding protein precursor and triosephosphate isomerase. Further comparison with available data demonstrated simultaneously a low diversity in terms of variety of accessions and a high complexity in terms of number of protein spots identifying the same accession, the two thirds of identified spots corresponding to amylases, cystatins and immunoglobulins. This diversity may be of interest in the development of non invasive diagnostic tool for several disease.
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Affiliation(s)
- C Hirtz
- Laboratory of Physiology, UFR d'Odontologie, Université Montpellier 1, France.
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Barrière C, Centeno D, Lebert A, Leroy-Sétrin S, Berdagué JL, Talon R. Roles of superoxide dismutase and catalase of Staphylococcus xylosus in the inhibition of linoleic acid oxidation. FEMS Microbiol Lett 2001; 201:181-5. [PMID: 11470359 DOI: 10.1111/j.1574-6968.2001.tb10754.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Staphylococcus xylosus used as starter culture in sausages decreases the level of volatile organic compounds arising from lipid oxidation and so contributes to the aroma by avoiding rancidity. The aim of this study was to characterize the roles of catalase and superoxide dismutase (SOD) in the inhibition of free fatty acid oxidation by comparing antioxidant capacity of the S. xylosus wild-type strain with those of the katA mutant and the sod mutant. Antioxidant capacity was determined by measuring the volatile organic compounds and the conjugated diene hydroperoxides arising from linoleic acid oxidation. The three strains inhibited the oxidation of linoleic acid. However, the katA mutant, and especially the sod mutant, had less antioxidant capacity than the S. xylosus wild-type strain. Thus both catalase and SOD of S. xylosus contributed to the inhibition of lipid oxidation.
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Affiliation(s)
- C Barrière
- INRA Theix, Station de Recherches sur la Viande, 63122, Saint-Genès Champanelle, France
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