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Han HW, Patel KD, Kwak JH, Jun SK, Jang TS, Lee SH, Knowles JC, Kim HW, Lee HH, Lee JH. Selenium Nanoparticles as Candidates for Antibacterial Substitutes and Supplements against Multidrug-Resistant Bacteria. Biomolecules 2021; 11:1028. [PMID: 34356651 PMCID: PMC8301847 DOI: 10.3390/biom11071028] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 11/16/2022] Open
Abstract
In recent years, multidrug-resistant (MDR) bacteria have increased rapidly, representing a major threat to human health. This problem has created an urgent need to identify alternatives for the treatment of MDR bacteria. The aim of this study was to identify the antibacterial activity of selenium nanoparticles (SeNPs) and selenium nanowires (SeNWs) against MDR bacteria and assess the potential synergistic effects when combined with a conventional antibiotic (linezolid). SeNPs and SeNWs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), zeta potential, and UV-visible analysis. The antibacterial effects of SeNPs and SeNWs were confirmed by the macro-dilution minimum inhibitory concentration (MIC) test. SeNPs showed MIC values against methicillin-sensitive S. aureus (MSSA), methicillin-resistant S. aureus (MRSA), vancomycin-resistant S. aureus (VRSA), and vancomycin-resistant enterococci (VRE) at concentrations of 20, 80, 320, and >320 μg/mL, respectively. On the other hand, SeNWs showed a MIC value of >320 μg/mL against all tested bacteria. Therefore, MSSA, MRSA, and VRSA were selected for the bacteria to be tested, and SeNPs were selected as the antimicrobial agent for the following experiments. In the time-kill assay, SeNPs at a concentration of 4X MIC (80 and 320 μg/mL) showed bactericidal effects against MSSA and MRSA, respectively. At a concentration of 2X MIC (40 and 160 μg/mL), SeNPs showed bacteriostatic effects against MSSA and bactericidal effects against MRSA, respectively. In the synergy test, SeNPs showed a synergistic effect with linezolid (LZD) through protein degradation against MSSA and MRSA. In conclusion, these results suggest that SeNPs can be candidates for antibacterial substitutes and supplements against MDR bacteria for topical use, such as dressings. However, for use in clinical situations, additional experiments such as toxicity and synergistic mechanism tests of SeNPs are needed.
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Affiliation(s)
- Hee-Won Han
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.-W.H.); (K.D.P.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan 31116, Korea
| | - Kapil D. Patel
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.-W.H.); (K.D.P.); (J.C.K.); (H.-W.K.)
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Korea
| | - Jin-Hwan Kwak
- Department of Life Science, Handong Global University, Pohang 37554, Korea;
| | - Soo-Kyung Jun
- Department of Dental Hygiene, Hanseo University, Seosan 31962, Korea;
| | - Tae-Su Jang
- Department of Pre-Medi, College of Medicine, Dankook University, Cheonan 31116, Korea;
| | - Sung-Hoon Lee
- Department of Oral Microbiology and Immunology, College of Dentistry, Dankook University, Cheonan 31116, Korea;
| | - Jonathan Campbell Knowles
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.-W.H.); (K.D.P.); (J.C.K.); (H.-W.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan 31116, Korea
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London NW3 2PF, UK
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.-W.H.); (K.D.P.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
- Cell & Matter Institute, Dankook University, Cheonan 31116, Korea
- Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan 31116, Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.-W.H.); (K.D.P.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.-W.H.); (K.D.P.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
- Cell & Matter Institute, Dankook University, Cheonan 31116, Korea
- Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan 31116, Korea
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Han HW, Kwak JH, Jang TS, Knowles JC, Kim HW, Lee HH, Lee JH. Grapefruit Seed Extract as a Natural Derived Antibacterial Substance against Multidrug-Resistant Bacteria. Antibiotics (Basel) 2021; 10:antibiotics10010085. [PMID: 33477436 PMCID: PMC7830962 DOI: 10.3390/antibiotics10010085] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 11/16/2022] Open
Abstract
Multidrug-resistant (MDR) bacteria are increasing due to the abuse and misuse of antibiotics, and nosocomial infections by MDR bacteria are also increasing. The aim of this study was to identify new substances that can target MDR bacteria among 12 plant extracts that are known to have antibacterial effects. The experiments were performed by the disk diffusion test and microdilution minimum inhibitory concentration (MIC) test, as described by the Clinical and Laboratory Standards Institute (CLSI). By screening against methicillin-sensitive Staphylococcus aureus (MSSA), grapefruit seed extract (GSE) was selected from 12 plant extracts for subsequent experiments. GSE showed antibacterial effects against methicillin-resistant S. aureus (MRSA) and vancomycin-resistant S. aureus (VRSA) in the disk diffusion test. Even at the lowest concentration, GSE showed antibacterial activity in the microdilution MIC test. As a result, we can conclude that GSE is a naturally derived antibacterial substance that exhibits a favorable antibacterial effect even at a very low concentration, so it is a good candidate for a natural substance that can be used to prevent or reduce nosocomial infections as coating for materials used in medical contexts or by mixing a small amount with other materials.
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Affiliation(s)
- Hee-Won Han
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Chungcheongnam-do 31116, Korea; (H.-W.H.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
| | - Jin-Hwan Kwak
- Department of Life Science, Handong Global University, 558 Handong-ro, Pohang, Gyeongsangbuk-do 37554, Korea;
| | - Tae-Su Jang
- Department of Pre-Medi, College of Medicine, Dankook University, 119 Dandae-ro, Cheonan, Chungcheongnam-do 31116, Korea;
| | - Jonathan Campbell Knowles
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Chungcheongnam-do 31116, Korea; (H.-W.H.); (J.C.K.); (H.-W.K.)
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, 119 Dandae-ro, Cheonan, Chungcheongnam-do 31116, Korea
- Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, Rowland Hill Street, London NW3 2PF, UK
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Chungcheongnam-do 31116, Korea; (H.-W.H.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Cell & Matter Institute, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Chungcheongnam-do 31116, Korea; (H.-W.H.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Correspondence: (H.-H.L.); (J.-H.L.); Tel.: +82-(0)-41-550-3083 (H.-H.L.); +82-41-550-3081 (J.-H.L.); Fax: +82-(0)-41-559-7839 (H.-H.L.); +82-41-559-7839 (J.-H.L.)
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Chungcheongnam-do 31116, Korea; (H.-W.H.); (J.C.K.); (H.-W.K.)
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Cell & Matter Institute, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do 31116, Korea
- Correspondence: (H.-H.L.); (J.-H.L.); Tel.: +82-(0)-41-550-3083 (H.-H.L.); +82-41-550-3081 (J.-H.L.); Fax: +82-(0)-41-559-7839 (H.-H.L.); +82-41-559-7839 (J.-H.L.)
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Shu H, Zhang W, Yun Y, Chen W, Zhong Q, Hu Y, Chen H, Chen W. Metabolomics study on revealing the inhibition and metabolic dysregulation in Pseudomonas fluorescens induced by 3-carene. Food Chem 2020; 329:127220. [PMID: 32516715 DOI: 10.1016/j.foodchem.2020.127220] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 05/25/2020] [Accepted: 05/31/2020] [Indexed: 11/16/2022]
Abstract
3-Carene is a monoterpenoid that has an effective inhibitory ability against Pseudomonas fluorescens (P. fluorescens) which can induce a range of food contamination problems. In this study, ultra-performance liquid chromatography-mass spectrometry (UPLC-MS)-based metabolomics was used to elucidate the antimicrobial mechanism of 3-carene in P. fluorescens. Multivariate analysis of the metabolite data revealed significant differences in the potential metabolite profiles between groups. The results of univariate analysis showed that significant changes in 42 metabolites were observed after treatment with 3-carene for 12 h when compared to the control group. Moreover, 3-carene treatment resulted in disturbances in many metabolic processes, including amino acid metabolism, pantothenate and coenzyme A (CoA) biosynthesis and the tricarboxylic acid (TCA) cycle. These results provide a new insight into the antimicrobial mechanisms of 3-carene in P. fluorescens and enhance our understanding of the antimicrobial mechanism from a metabolic perspective.
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Affiliation(s)
- Huizhen Shu
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China
| | - Weimin Zhang
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China
| | - Yonghuan Yun
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China
| | - Weijun Chen
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China; Chunguang Agro-product Processing Institute, Wenchang 571333, China
| | - Qiuping Zhong
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China
| | - Yueying Hu
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China
| | - Haiming Chen
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China; Huachuang Institute of Areca Research-Hainan, Haikou 570226, China.
| | - Wenxue Chen
- College of Food Sciences & Engineering, Hainan University, 58 People Road, Haikou 570228, PR China; Chunguang Agro-product Processing Institute, Wenchang 571333, China.
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Antimicrobial Susceptibility and Antibacterial Mechanism of Limonene against Listeria monocytogenes. Molecules 2019; 25:molecules25010033. [PMID: 31861877 PMCID: PMC6982812 DOI: 10.3390/molecules25010033] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/03/2019] [Accepted: 12/12/2019] [Indexed: 11/24/2022] Open
Abstract
Limonene is a monoterpenoid compound, which is founded in a lot of plants’ essential oils with good antibacterial activity against food-borne pathogens, but it has an ambiguous antimicrobial susceptibility and mechanism against Listeria monocytogenes (L. monocytogenes). In this study, the antimicrobial susceptibility of Limonene to L. monocytogenes was studied, and some new sights regarding its antibacterial mechanism were further explored. Scanning electron microscopy (SEM) verified that limonene caused the destruction of the cell integrity and wall structure of L. monocytogenes. The increase in conductivity and the leakage of intracellular biomacromolecules (nucleic acids and proteins) confirmed that limonene had an obvious effect on cell membrane permeability. The results of Propidium Iodide (PI) fluorescence staining were consistent with the results of the conductivity measurements. This indicated that limonene treatment caused damage to the L. monocytogenes cell membrane. Furthermore, the decrease in ATP content, ATPase (Na+K+-ATPase, Ca2+-ATPase) activity and respiratory chain complex activity indicated that limonene could hinder ATP synthesis by inhibiting the activity of the respiratory complex and ATPase. Finally, differential expression of proteins in the respiratory chain confirmed that limonene affected respiration and energy metabolism by inhibiting the function of the respiratory chain complex.
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