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Khelissa S, Gharsallaoui A, Fadel A, Barras A, Jama C, Jbilou F, Chihib NE. Microencapsulation of benzalkonium chloride enhanced its antibacterial and antibiofilm activities against Listeria monocytogenes and Escherichia coli. J Appl Microbiol 2021; 131:1136-1146. [PMID: 33484234 DOI: 10.1111/jam.15010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/11/2021] [Accepted: 01/18/2021] [Indexed: 11/26/2022]
Abstract
AIMS In this study, benzalkonium chloride (BAC) microcapsules were developed for surface disinfection purpose and were evaluated against Listeria monocytogenes and Escherichia coli biofilms. METHODS AND RESULTS Microcapsules were prepared with two different strategies: uncomplexed BAC-microcapsules (UBM) containing BAC and maltodextrins, and complexed BAC-microcapsules (CBM) containing BAC complexed by pectin and maltodextrins. The minimum inhibitory concentrations (MICs) of free and microencapsulated BAC were investigated against two food pathogens: L. monocytogenes and E. coli. The antibiofilm activities of UBM and CBM against L. monocytogenes and E. coli biofilms formed on stainless steel at 37°C were evaluated and compared to BAC used under its free form. MICs of encapsulated BAC were up to fourfold lower than those of free BAC. The UBM and CBM showed higher antibiofilm effect when compared to the free BAC. CONCLUSIONS Overall, results demonstrated that microencapsulation enhanced the antibacterial activity of BAC against L. monocytogenes and E. coli biofilms. SIGNIFICANCE AND IMPACT OF THE STUDY The application of such BAC microcapsule-based delivery systems can improve surface disinfection procedures and reduce the required BAC concentrations and the related cytotoxicity of this antimicrobial compound.
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Affiliation(s)
- S Khelissa
- Univ Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, Lille, France
| | - A Gharsallaoui
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Villeurbanne, France
| | - A Fadel
- Univ Lille, CNRS, INRAE, Centrale Lille, Université d'Artois, FR 2638 - IMEC -Institut Michel-Eugène Chevreul, Lille, France
| | - A Barras
- Univ Lille, CNRS, Centrale Lille Univ. Polytechnique Hauts-de-France, UMR 8520-IEMN, Lille, France
| | - C Jama
- Univ Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, Lille, France
| | | | - N-E Chihib
- Univ Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, Lille, France
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Grolez GP, Hammadi M, Barras A, Gordienko D, Slomianny C, Völkel P, Angrand PO, Pinault M, Guimaraes C, Potier-Cartereau M, Prevarskaya N, Boukherroub R, Gkika D. Encapsulation of a TRPM8 Agonist, WS12, in Lipid Nanocapsules Potentiates PC3 Prostate Cancer Cell Migration Inhibition through Channel Activation. Sci Rep 2019; 9:7926. [PMID: 31138874 PMCID: PMC6538610 DOI: 10.1038/s41598-019-44452-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 05/14/2019] [Indexed: 01/24/2023] Open
Abstract
In prostate carcinogenesis, expression and/or activation of the Transient Receptor Potential Melastatin 8 channel (TRPM8) was shown to block in vitro Prostate Cancer (PCa) cell migration. Because of their localization at the plasma membrane, ion channels, such as TRPM8 and other membrane receptors, are promising pharmacological targets. The aim of this study was thus to use nanocarriers encapsulating a TRPM8 agonist to efficiently activate the channel and therefore arrest PCa cell migration. To achieve this goal, the most efficient TRPM8 agonist, WS12, was encapsulated into Lipid NanoCapsules (LNC). The effect of the nanocarriers on channel activity and cellular physiological processes, such as cell viability and migration, were evaluated in vitro and in vivo. These results provide a proof-of-concept support for using TRPM8 channel-targeting nanotechnologies based on LNC to develop more effective methods inhibiting PCa cell migration in zebrafish xenograft.
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Affiliation(s)
- G P Grolez
- Univ. Lille, Inserm, U1003 - PHYCEL - Physiologie Cellulaire, F-59000, Lille, France.,Laboratory of Excellence, Ion Channels Science and Therapeutics, Villeneuve d'Ascq, France
| | - M Hammadi
- Univ. Lille, CNRS, Central Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000, Lille, France
| | - A Barras
- Univ. Lille, CNRS, Central Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000, Lille, France
| | - D Gordienko
- Univ. Lille, Inserm, U1003 - PHYCEL - Physiologie Cellulaire, F-59000, Lille, France.,Laboratory of Excellence, Ion Channels Science and Therapeutics, Villeneuve d'Ascq, France
| | - C Slomianny
- Univ. Lille, Inserm, U1003 - PHYCEL - Physiologie Cellulaire, F-59000, Lille, France.,Laboratory of Excellence, Ion Channels Science and Therapeutics, Villeneuve d'Ascq, France
| | - P Völkel
- Univ. Lille, U908 - CPAC, Cell Plasticity and Cancer, F-59000, Lille, France.,CNRS, CPAC, Cell Plasticity and Cancer, Lille, France
| | - P O Angrand
- Univ. Lille, U908 - CPAC, Cell Plasticity and Cancer, F-59000, Lille, France
| | - M Pinault
- Université de Tours, Nutrition, Croissance et Cancer, Inserm UMR1069, Tours, France.,Ion channel Network and Cancer-Canceropole Grand Ouest, (IC-CGO), Nantes, France
| | - C Guimaraes
- Université de Tours, Nutrition, Croissance et Cancer, Inserm UMR1069, Tours, France.,Ion channel Network and Cancer-Canceropole Grand Ouest, (IC-CGO), Nantes, France
| | - M Potier-Cartereau
- Université de Tours, Nutrition, Croissance et Cancer, Inserm UMR1069, Tours, France.,Ion channel Network and Cancer-Canceropole Grand Ouest, (IC-CGO), Nantes, France
| | - N Prevarskaya
- Univ. Lille, Inserm, U1003 - PHYCEL - Physiologie Cellulaire, F-59000, Lille, France.,Laboratory of Excellence, Ion Channels Science and Therapeutics, Villeneuve d'Ascq, France
| | - R Boukherroub
- Univ. Lille, CNRS, Central Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000, Lille, France
| | - D Gkika
- Univ. Lille, Inserm, U1003 - PHYCEL - Physiologie Cellulaire, F-59000, Lille, France. .,Laboratory of Excellence, Ion Channels Science and Therapeutics, Villeneuve d'Ascq, France.
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Hosu IS, Sobaszek M, Ficek M, Bogdanowicz R, Drobecq H, Boussekey L, Barras A, Melnyk O, Boukherroub R, Coffinier Y. Carbon nanowalls: a new versatile graphene based interface for the laser desorption/ionization-mass spectrometry detection of small compounds in real samples. Nanoscale 2017; 9:9701-9715. [PMID: 28675223 DOI: 10.1039/c7nr01069a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Carbon nanowalls, vertically aligned graphene nanosheets, attract attention owing to their tunable band gap, high conductivity, high mechanical robustness, high optical absorbance and other remarkable properties. In this paper, we report for the first time the use of hydrophobic boron-doped carbon nanowalls (CNWs) for laser desorption/ionization of small compounds and their subsequent detection by mass spectrometry (LDI-MS). The proposed method offers sensitive detection of various small molecules in the absence of an organic matrix. The CNWs were grown by microwave plasma enhanced chemical vapor deposition (MW-PECVD), using a boron-carbon gas flow ratio of 1200 in H2/CH4 plasma, on silicon <100> wafer. The hydrophobicity of the surface offers a straightforward MS sample deposition, consisting of drop casting solutions of analytes and drying in air. Limits of detection in the picomolar and femtomolar ranges (25 fmol μL-1 for neurotensin) were achieved for different types of compounds (fatty acids, lipids, metabolites, saccharides and peptides) having clinical or food industry applications. This rapid and sensitive procedure can also be used for quantitative measurements without internal standards with RSDs <19%, as in the case of glucose in aqueous solutions (LOD = 0.32 ± 0.02 pmol), blood serum or soft drinks. Moreover, melamine (63 ± 8.19 ng μL-1), a toxic compound, together with creatinine and paracetamol, was detected in urine samples, while lecithin was detected in food supplements.
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Affiliation(s)
- I S Hosu
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, IEMN, UMR CNRS 8520, Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
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Barras A, Mezzetti A, Richard A, Lazzaroni S, Roux S, Melnyk P, Betbeder D, Monfilliette-Dupont N. Formulation and characterization of polyphenol-loaded lipid nanocapsules. Int J Pharm 2009; 379:270-7. [PMID: 19501139 DOI: 10.1016/j.ijpharm.2009.05.054] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Revised: 04/27/2009] [Accepted: 05/25/2009] [Indexed: 11/25/2022]
Abstract
The purpose of this study was to design and characterize two flavonoid-loaded lipid nanocapsules (LNC) by applying the phase inversion process, and to enhance their apparent solubility and/or the stability. The flavonoid-loaded LNC were characterized by particle size, encapsulation efficiency, drug leakage rates, stability and spectroscopic studies. It was observed that quercetin-loaded LNC30 (3%) and LNC60 (2%) carried a particle size of 30.3 and 55.1 nm, respectively and significant higher entrapment efficiency. Encapsulation of quercetin (QC) in LNC enabled us to increase its apparent aqueous solubility by a factor of 100. And in view of calculations and results, it seems most probable that QC is arranged at this LNC interface between the oil phase and the hydrophilic polyethylene glycol moieties of the surfactant. In addition, colloidal suspensions proved to be stable in term of encapsulation for at least 10 weeks and QC was not oxidised. With simple chemical modification of (-)-epigallocatechin-3-gallate or (-)-EGCG, it was possible to reach very high encapsulation rates (95%). Thus we obtained stable colloidal suspensions of (-)-EGCG in water over 4 weeks while free (-)-EGCG solubilised in water exhibited 100% degradation within 4h. The initial problems (solubility and stability) of these flavonoids were resolved thanks to drug-loaded LNC.
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Affiliation(s)
- A Barras
- Equipe de Chimie et MicroNanotechnologies à Visée Thérapeutique, UMR CNRS 8161, Université de Lille 1 et 2, Institut Pasteur de Lille, Institut de Biologie de Lille, 1 rue du Pr. Calmette, 59021 Lille Cedex, France
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