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Leclercq L, Tessier J, Nardello-Rataj V, Schmitzer AR. Highly Active, Entirely Biobased Antimicrobial Pickering Emulsions. ChemMedChem 2021; 16:2223-2230. [PMID: 33735940 DOI: 10.1002/cmdc.202100030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/17/2021] [Indexed: 12/13/2022]
Abstract
We present the development of surfactant-free, silica-free and fully biobased oil-in-water antimicrobial Pickering emulsions, based on the self-assembly of β-cyclodextrin and phytoantimicrobial oils (terpinen-4-ol or carvacrol). Undecylenic acid (UA), derived from castor oil, can be used as bio-based drug to treat fungal infection, but is less effective than petroleum-based drugs as azole derivatives. To maximize its antifungal potential, we have incorporated UA in fully biobased Pickering emulsions. These emulsions are effective against fungi, Gram-positive and Gram-negative bacteria. The carvacrol emulsion charged with UA is +390 % and +165 % more potent against methicillin-resistant S. aureus (MRSA), compared to UA and azole-based commercial formulations. Moreover, this emulsion is up to +480 % more efficient that UA ointment against C. albicans. Finally, remarkable eradication of E. coli and MRSA biofilms was obtained with this environmental-friendly emulsion.
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Affiliation(s)
- Loïc Leclercq
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS, Unité de Catalyse et Chimie du Solide, 59000, Lille, France.,Département de Chimie, Université de Montréal, CP 6128 Succursale Centre-Ville, H3C3J7, Montréal, Québec, Canada
| | - Jérémie Tessier
- Département de Chimie, Université de Montréal, CP 6128 Succursale Centre-Ville, H3C3J7, Montréal, Québec, Canada
| | - Véronique Nardello-Rataj
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS, Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Andreea-Ruxandra Schmitzer
- Département de Chimie, Université de Montréal, CP 6128 Succursale Centre-Ville, H3C3J7, Montréal, Québec, Canada
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Xu H, Yan ZZ, Guo MB, An R, Wang X, Zhang R, Mou YH, Hou Z, Guo C. Lead optimization generates selenium-containing miconazole CYP51 inhibitors with improved pharmacological profile for the treatment of fungal infections. Eur J Med Chem 2021; 216:113337. [PMID: 33713977 DOI: 10.1016/j.ejmech.2021.113337] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 11/19/2022]
Abstract
A series of selenium-containing miconazole derivatives were identified as potent antifungal drugs in our previous study. Representative compound A03 (MIC = 0.01 μg/mL against C.alb. 5314) proved efficacious in inhibiting the growth of fungal pathogens. However, further study showed lead compound A03 exhibited potential hemolysis, significant cytotoxic effect and unfavorable metabolic stability and was therefore modified to overcome these drawbacks. In this article, the further optimization of selenium-containing miconazole derivatives resulted in the discovery of similarly potent compound B17 (MIC = 0.02 μg/mL against C.alb. 5314), exhibiting a superior pharmacological profile with decreased rate of metabolism, cytotoxic effect and hemolysis. Furthermore, compound B17 showed fungicidal activity against Candida albicans and significant effects on the treatment of resistant Candida albicans infections. Meanwhile, compound B17 not only could reduce the ergosterol biosynthesis pathway by inhibiting CYP51, but also inhibited biofilm formation. More importantly, compound B17 also shows promising in vivo efficacy after intraperitoneal injection and the PK study of compound B17 was evaluated. In addition, molecular docking studies provide a model for the interaction between the compound B17 and the CYP51 protein. Overall, we believe that these selenium-containing miconazole compounds can be further developed for the potential treatment of fungal infections.
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Affiliation(s)
- Hang Xu
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China
| | - Zhong-Zuo Yan
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China
| | - Meng-Bi Guo
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China
| | - Ran An
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China
| | - Xin Wang
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China
| | - Rui Zhang
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China
| | - Yan-Hua Mou
- School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhuang Hou
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China.
| | - Chun Guo
- Key Laboratory of Structure-Based Drugs Design and Discovery (Ministry of Education), School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016 China.
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Xu H, Su X, Guo MB, An R, Mou YH, Hou Z, Guo C. Design, synthesis, and biological evaluation of novel miconazole analogues containing selenium as potent antifungal agents. Eur J Med Chem 2020; 198:112360. [DOI: 10.1016/j.ejmech.2020.112360] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 12/19/2022]
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Leclercq L, Tessier J, Douyère G, Nardello-Rataj V, Schmitzer AR. Phytochemical- and Cyclodextrin-Based Pickering Emulsions: Natural Potentiators of Antibacterial, Antifungal, and Antibiofilm Activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4317-4323. [PMID: 32271592 DOI: 10.1021/acs.langmuir.0c00314] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We present self-assembled Pickering emulsions containing biocidal phytochemical oils (carvacrol and terpinen-4-ol) and β-cyclodextrin able to potentiate the antimicrobial and antibiofilm activity of miconazoctylium bromide. The carvacrol-containing emulsion is 2-fold more sensitive against C. albicans and S. aureus and highly active against E. coli, compared to the commercial cream containing miconazole nitrate. Moreover, this emulsion shows a synergistic effect against fungi, additive responses against bacteria, and remarkable staphylococcal biofilm eradication. These results are associated with membrane permeabilization, enzymes inhibition, and the accumulation of reactive oxygen species in microorganisms.
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Affiliation(s)
- Loïc Leclercq
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, UCCS - Unité de Catalyse et Chimie du Solide, 59000 Lille, France
| | - Jérémie Tessier
- Université de Montréal, Département de Chimie, CP 6128 Succursale Centre-Ville, H3C3J7 Montréal, Québec, Canada
| | - Grégory Douyère
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, UCCS - Unité de Catalyse et Chimie du Solide, 59000 Lille, France
| | - Véronique Nardello-Rataj
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181, UCCS - Unité de Catalyse et Chimie du Solide, 59000 Lille, France
| | - Andreea R Schmitzer
- Université de Montréal, Département de Chimie, CP 6128 Succursale Centre-Ville, H3C3J7 Montréal, Québec, Canada
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Tessier J, Schmitzer AR. Benzimidazolium salts prevent and disrupt methicillin-resistant Staphylococcus aureus biofilms. RSC Adv 2020; 10:9420-9430. [PMID: 35497239 PMCID: PMC9050073 DOI: 10.1039/d0ra00738b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 02/24/2020] [Indexed: 01/05/2023] Open
Abstract
Emergence of resistant bacteria encourages us to develop new antibiotics and strategies to compensate for the different mechanisms of resistance they acquire. One of the defense mechanisms of resistant bacteria is the formation of biofilms. Herein we show that benzimidazolium salts with various flexible or rigid side chains act as strong antibiotic and antibiofilm agents. We show that their antibiofilm activity is due to their capacity to destroy the biofilm matrix and the bacterial cellular membranes. These compounds are able to avoid the formation of biofilms and disperse mature biofilms showing a universal use in the treatment of biofilm-associated infections. Benzimidazolium salts impair biofilm and bacterial membrane structural integrity.![]()
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Li M, Li L, Su K, Liu X, Zhang T, Liang Y, Jing D, Yang X, Zheng D, Cui Z, Li Z, Zhu S, Yeung KWK, Zheng Y, Wang X, Wu S. Highly Effective and Noninvasive Near-Infrared Eradication of a Staphylococcus aureus Biofilm on Implants by a Photoresponsive Coating within 20 Min. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900599. [PMID: 31508278 PMCID: PMC6724470 DOI: 10.1002/advs.201900599] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/10/2019] [Indexed: 05/04/2023]
Abstract
Biofilms have been related to the persistence of infections on medical implants, and these cannot be eradicated because of the resistance of biofilm structures. Therefore, a biocompatible phototherapeutic system is developed composed of MoS2, IR780 photosensitizer, and arginine-glycine-aspartic acid-cysteine (RGDC) to safely eradicate biofilms on titanium implants within 20 min. The magnetron-sputtered MoS2 film possesses excellent photothermal properties, and IR780 can produce reactive oxygen species (ROS) with the irradiation of near-infrared (NIR, λ = 700-1100 nm) light. Consequently, the combination of photothermal therapy (PTT) and photodynamic therapy (PDT), assisted by glutathione oxidation accelerated by NIR light, can provide synergistic and rapid killing of bacteria, i.e., 98.99 ± 0.42% eradication ratio against a Staphylococcus aureus biofilm in vivo within 20 min, which is much greater than that of PTT or PDT alone. With the assistance of ROS, the permeability of damaged bacterial membranes increases, and the damaged bacterial membranes become more sensitive to heat, thus accelerating the leakage of proteins from the bacteria. In addition, RGDC can provide excellent biosafety and osteoconductivity, which is confirmed by in vivo animal experiments.
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Affiliation(s)
- Mu Li
- Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science & EngineeringHubei UniversityWuhan430062China
| | - Liqian Li
- Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science & EngineeringHubei UniversityWuhan430062China
| | - Kun Su
- Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science & EngineeringHubei UniversityWuhan430062China
| | - Xiangmei Liu
- Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science & EngineeringHubei UniversityWuhan430062China
| | - Tianjin Zhang
- Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science & EngineeringHubei UniversityWuhan430062China
| | - Yanqin Liang
- School of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin300072China
| | - Doudou Jing
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Xianjin Yang
- School of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin300072China
| | - Dong Zheng
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Zhenduo Cui
- School of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin300072China
| | - Zhaoyang Li
- School of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin300072China
| | - Shengli Zhu
- School of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin300072China
| | - Kelvin Wai Kwok Yeung
- Department of Orthopaedics & TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong Kong999077China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and EngineeringCollege of EngineeringPeking UniversityBeijing100871China
| | - Xianbao Wang
- Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science & EngineeringHubei UniversityWuhan430062China
| | - Shuilin Wu
- Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science & EngineeringHubei UniversityWuhan430062China
- School of Materials Science & Engineeringthe Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin300072China
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