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Zhu H, Lv Y, Xin F, Wang M, Zhao X, Ren X, Zhang J, Yin D, Guo T, Wu L. Enhanced Stability and Solidification of Volatile Eugenol by Cyclodextrin-Metal Organic Framework for Nasal Powder Delivery. AAPS PharmSciTech 2024; 25:117. [PMID: 38806874 DOI: 10.1208/s12249-024-02839-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/13/2024] [Indexed: 05/30/2024] Open
Abstract
Eugenol (Eug) holds potential as a treatment for bacterial rhinosinusitis by nasal powder drug delivery. To stabilization and solidification of volatile Eug, herein, nasal inhalable γ-cyclodextrin metal-organic framework (γ-CD-MOF) was investigated as a carrier by gas-solid adsorption method. The results showed that the particle size of Eug loaded by γ-CD-MOF (Eug@γ-CD-MOF) distributed in the range of 10-150 μm well. In comparison to γ-CD and β-CD-MOF, γ-CD-MOF has higher thermal stability to Eug. And the intermolecular interactions between Eug and the carriers were verified by characterizations and molecular docking. Based on the bionic human nasal cavity model, Eug@γ-CD-MOF had a high deposition distribution (90.07 ± 1.58%). Compared with free Eug, the retention time Eug@γ-CD-MOF in the nasal cavity was prolonged from 5 min to 60 min. In addition, the cell viability showed that Eug@γ-CD-MOF (Eug content range 3.125-200 µg/mL) was non-cytotoxic. And the encapsulation of γ-CD-MOF could not reduce the bacteriostatic effect of Eug. Therefore, the biocompatible γ-CD-MOF could be a potential and valuable carrier for nasal drug delivery to realize solidification and nasal therapeutic effects of volatile oils.
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Affiliation(s)
- Huajie Zhu
- Anhui University of Chinese Medicine, Anhui, 230000, China
- Yangtze Delta Drug Advanced Research Institute, Jiangsu, 226133, China
| | - Yuting Lv
- Anhui University of Chinese Medicine, Anhui, 230000, China
- Yangtze Delta Drug Advanced Research Institute, Jiangsu, 226133, China
| | - Fangyuan Xin
- Yangtze Delta Drug Advanced Research Institute, Jiangsu, 226133, China
- Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Manli Wang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
| | - Xiangyu Zhao
- Anhui University of Chinese Medicine, Anhui, 230000, China
- Yangtze Delta Drug Advanced Research Institute, Jiangsu, 226133, China
| | - Xiaohong Ren
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201210, China
| | - Jiwen Zhang
- Anhui University of Chinese Medicine, Anhui, 230000, China
- Yangtze Delta Drug Advanced Research Institute, Jiangsu, 226133, China
- Shenyang Pharmaceutical University, Shenyang, 110016, China
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201210, China
- NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing, 100050, China
| | - Dengke Yin
- Anhui University of Chinese Medicine, Anhui, 230000, China.
| | - Tao Guo
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201210, China.
| | - Li Wu
- Anhui University of Chinese Medicine, Anhui, 230000, China.
- Yangtze Delta Drug Advanced Research Institute, Jiangsu, 226133, China.
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, 330004, China.
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201210, China.
- NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing, 100050, China.
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2
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Li L, Gao X, Li M, Liu Y, Ma J, Wang X, Yu Z, Cheng W, Zhang W, Sun H, Song X, Wang Z. Relationship between biofilm formation and antibiotic resistance of Klebsiella pneumoniae and updates on antibiofilm therapeutic strategies. Front Cell Infect Microbiol 2024; 14:1324895. [PMID: 38465230 PMCID: PMC10920351 DOI: 10.3389/fcimb.2024.1324895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 02/02/2024] [Indexed: 03/12/2024] Open
Abstract
Klebsiella pneumoniae is a Gram-negative bacterium within the Enterobacteriaceae family that can cause multiple systemic infections, such as respiratory, blood, liver abscesses and urinary systems. Antibiotic resistance is a global health threat and K. pneumoniae warrants special attention due to its resistance to most modern day antibiotics. Biofilm formation is a critical obstruction that enhances the antibiotic resistance of K. pneumoniae. However, knowledge on the molecular mechanisms of biofilm formation and its relation with antibiotic resistance in K. pneumoniae is limited. Understanding the molecular mechanisms of biofilm formation and its correlation with antibiotic resistance is crucial for providing insight for the design of new drugs to control and treat biofilm-related infections. In this review, we summarize recent advances in genes contributing to the biofilm formation of K. pneumoniae, new progress on the relationship between biofilm formation and antibiotic resistance, and new therapeutic strategies targeting biofilms. Finally, we discuss future research directions that target biofilm formation and antibiotic resistance of this priority pathogen.
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Affiliation(s)
- Lifeng Li
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
- Department of Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xueyan Gao
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Mingchao Li
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Yuchun Liu
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Jiayue Ma
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Xiaolei Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Zhidan Yu
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Weyland Cheng
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Wancun Zhang
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Huiqing Sun
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Xiaorui Song
- Henan International Joint Laboratory of Children’s Infectious Diseases, Department of Neonatology, Children’s Hospital Affiliated to Zhengzhou University, Henan Children’s Hospital, Zhengzhou Children’s Hospital, Zhengzhou, China
| | - Zhaobao Wang
- Energy-rich Compounds Production by Photosynthetic Carbon Fixation Research Center, Shandong Key Lab of Applied Mycology, College of Life Sciences, Qingdao Agricultural University, Qingdao, China
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Luna-Pineda VM, Rodríguez-Martínez G, Salazar-García M, Romo-Castillo M. Plant-Origin Components: New Players to Combat Antibiotic Resistance in Klebsiella pneumoniae. Int J Mol Sci 2024; 25:2134. [PMID: 38396811 PMCID: PMC10888558 DOI: 10.3390/ijms25042134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/09/2024] [Accepted: 01/13/2024] [Indexed: 02/25/2024] Open
Abstract
Klebsiella pneumoniae (Kpn) is an opportunistic pathogen that causes intrahospital complications such as pneumonia, liver abscesses, soft tissue infections, urinary infections, bacteraemia, and, in some cases, death. Since this bacterium has a higher frequency than other Gram-negative pathogens, it has become an important pathogen to the health sector. The adaptative genome of Kpn likely facilitates increased survival of the pathogen in diverse situations. Therefore, several studies have been focused on developing new molecules, synergistic formulations, and biomaterials that make it possible to combat and control infections with and dispersion of this pathogen. Note that the uncontrolled antibiotic administration that occurred during the pandemic led to the emergence of new multidrug-resistant strains, and scientists were challenged to overcome them. This review aims to compile the latest information on Kpn that generates intrahospital infections, specifically their pathogenicity-associated factors. Furthermore, it explains the natural-product-based treatments (extracts and essential oils) developed for Kpn infection and dispersion control.
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Affiliation(s)
- Victor M. Luna-Pineda
- Laboratorio de Investigación en COVID-19, Hospital Infantil de México Federico Gómez, Ciudad de México 06720, Mexico; (V.M.L.-P.); (G.R.-M.)
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Ciudad de México 06720, Mexico
| | - Griselda Rodríguez-Martínez
- Laboratorio de Investigación en COVID-19, Hospital Infantil de México Federico Gómez, Ciudad de México 06720, Mexico; (V.M.L.-P.); (G.R.-M.)
- Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Ciudad de México 06720, Mexico
| | - Marcela Salazar-García
- Departamento de Investigación Biomédica, Hospital Infantil de México Federico Gómez, Ciudad de México 06720, Mexico;
| | - Mariana Romo-Castillo
- IxM/CONAHCYT-HIMFG, Laboratorio de Investigación en Inmunología y Proteómica, Hospital Infantil de México Federico Gómez, Ciudad de México 06720, Mexico
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He JH, Li XJ, Wang SP, Guo X, Chu HX, Xu HC, Wang YS. Eugenol Inhibits Ox-LDL-Induced Proliferation and Migration of Human Vascular Smooth Muscle Cells by Inhibiting the Ang II/MFG-E8/MCP-1 Signaling Cascade. J Inflamm Res 2024; 17:641-653. [PMID: 38328560 PMCID: PMC10847669 DOI: 10.2147/jir.s446960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/20/2024] [Indexed: 02/09/2024] Open
Abstract
Objective In this study, we investigated the effect and mechanism of action of eugenol on oxidized low-density lipoprotein (ox-LDL)-induced abnormal proliferation and migration of human vascular smooth muscle cells (HVSMCs). Methods HVSMCs were treated with 100 ug/mL ox-LDL for 24 hours to establish a cell model. After 1-hour pretreatment, eugenol at concentrations of 5, 25, and 50 uM was added. Cell viability was assessed using an MTT assay, PCNA expression was detected using Western blot, cell cycle distribution was analyzed using flow cytometry, and cell migration ability was evaluated using wound healing and Transwell migration assays. To investigate the mechanisms, Ang II receptors were inhibited by 1000 nM valsartan, MFG-E8 was knocked down by shRNA, MCP-1 was inhibited by siRNA, and MFG-E8 was overexpressed using plasmids. Results The findings from this study elucidated the stimulatory impact of ox-LDL on the proliferation and functionality of HVSMCs. Different concentrations of eugenol effectively mitigated the enhanced activity of HVSMCs induced by ox-LDL, with 50 uM eugenol exhibiting the most pronounced inhibitory effect. Flow cytometry and Western blot results showed ox-LDL reduced G1 phase cells and increased PCNA expression, while 50 uM eugenol inhibited ox-LDL-induced HVSMC proliferation. In wound healing and Transwell migration experiments, the ox-LDL group showed larger cell scratch filling and migration than the control group, both of which were inhibited by 50 uM eugenol. Inhibiting the Ang II/MFG-E8/MCP-1 signaling cascade mimicked eugenol's effects, while MFG-E8 overexpression reversed eugenol's inhibitory effect. Conclusion Eugenol can inhibit the proliferation and migration of ox-LDL-induced HVSMCs by inhibiting Ang II/MFG-E8/MCP-1 signaling cascade, making it a potential therapeutic drug for atherosclerosis.
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Affiliation(s)
- Jia-Huan He
- Department of Cardiology, The First Hospital of Jilin University, Changchun, 13000, People’s Republic of China
| | - Xiang-Jun Li
- Department of Experimental Pharmacology and Toxicology, College of Pharmacy, Jilin University, Changchun, 130000, People’s Republic of China
| | - Shi-Peng Wang
- Department of Cardiology, The First Hospital of Jilin University, Changchun, 13000, People’s Republic of China
| | - Xia Guo
- Department of Cardiology, The First Hospital of Jilin University, Changchun, 13000, People’s Republic of China
| | - Hao-Xuan Chu
- Department of Cardiology, The First Hospital of Jilin University, Changchun, 13000, People’s Republic of China
| | - Han-Chi Xu
- Department of Cardiology, The First Hospital of Jilin University, Changchun, 13000, People’s Republic of China
| | - Yu-Shi Wang
- Department of Cardiology, The First Hospital of Jilin University, Changchun, 13000, People’s Republic of China
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Angane M, Swift S, Huang K, Perera J, Chen X, Butts CA, Quek SY. Synergistic antimicrobial interaction of plant essential oils and extracts against foodborne pathogens. Food Sci Nutr 2024; 12:1189-1206. [PMID: 38370080 PMCID: PMC10867478 DOI: 10.1002/fsn3.3834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 10/06/2023] [Accepted: 11/03/2023] [Indexed: 02/20/2024] Open
Abstract
Essential oils (EOs) and plant extracts have demonstrated inhibitory activity against a wide range of pathogenic bacteria. In this study, the chemical composition of manuka, kanuka, peppermint, thyme, lavender, and feijoa leaf and peel EOs and feijoa peel and leaf extracts were analyzed, and their antimicrobial activity against Escherichia coli, Salmonella enterica Typhimurium, Staphylococcus aureus, Bacillus cereus, and Listeria monocytogenes were determined. The results showed that the major compounds varied among different EOs and extracts, with menthol in peppermint EO, thymol and carvacrol in thyme EO, linalool in lavender EO, β-caryophyllene in feijoa EO, and flavones in feijoa extract being the most prevalent. The study found that while EOs/extracts had antimicrobial activity alone, no individual EO/extract was highly effective against all tested species. Therefore, their combinations were tested to identify those that could broaden the spectrum of activity and act synergistically. The checkerboard method was applied to assess the possible synergism between the paired combinations of EOs/extract. The peppermint/thyme, peppermint/lavender, and peppermint/feijoa peel extract combinations exhibited a synergistic effect against E. coli and L. monocytogenes, with the peppermint/thyme and peppermint/feijoa peel extract combinations being the most effective against all five pathogens. Time-to-kill kinetics assays demonstrated that peppermint/thyme and peppermint/feijoa peel extract combinations achieved complete eradication of E. coli within 10-30 min and L. monocytogenes within 4-6 h. This study provides a promising approach to developing a natural alternative for food preservation using synergistic combinations of EOs/extracts, which could potentially reduce the required dosage and broaden their application in food products as natural preservatives.
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Affiliation(s)
- Manasweeta Angane
- Food Science, School of Chemical Sciences The University of Auckland Auckland New Zealand
- Faculty of Medical and Health Sciences, School of Medical Sciences The University of Auckland Auckland New Zealand
- The New Zealand Institute for Plant & Food Research Limited Palmerston North New Zealand
| | - Simon Swift
- Faculty of Medical and Health Sciences, School of Medical Sciences The University of Auckland Auckland New Zealand
| | - Kang Huang
- Food Science, School of Chemical Sciences The University of Auckland Auckland New Zealand
| | - Janesha Perera
- Faculty of Medical and Health Sciences, School of Medical Sciences The University of Auckland Auckland New Zealand
| | - Xiao Chen
- Food Science, School of Chemical Sciences The University of Auckland Auckland New Zealand
| | - Christine A Butts
- The New Zealand Institute for Plant & Food Research Limited Palmerston North New Zealand
| | - Siew Young Quek
- Food Science, School of Chemical Sciences The University of Auckland Auckland New Zealand
- Riddet Institute New Zealand Centre of Research Excellence for Food Research Palmerston North New Zealand
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Yu J, Hong C, Yin L, Ping Q, Hu G. Antimicrobial activity of phenyllactic acid against Klebsiella pneumoniae and its effect on cell wall membrane and genomic DNA. Braz J Microbiol 2023; 54:3245-3255. [PMID: 37728681 PMCID: PMC10689709 DOI: 10.1007/s42770-023-01126-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/09/2023] [Indexed: 09/21/2023] Open
Abstract
As Klebsiella pneumoniae (KP) has acquired high levels of resistance to multiple antibiotics, it is considered a worldwide pathogen of concern, and substitutes for traditional antibiotics are urgently needed. 3-Phenyllactic acid (PLA) has been reported to have antimicrobial activity against food-borne bacteria. However, there was no experiment evidence for the exact antibacterial effect and mechanism of PLA kills pathogenic KP. In this study, the Oxford cup method indicated that PLA is effective to KP with a minimum inhibitory concentration of 2.5 mg/mL. Furthermore, PLA inhibited the growth and biofilm formation of in a time- and concentration-dependent manner. In vivo, PLA could significantly increase the survival rate of infected mice and reduce the pathological tissue damage. The antibacterial mode of PLA against KP was further explored. Firstly, scanning electron microscopy illustrated the disruption of cellular ultrastructure caused by PLA. Secondly, measurement of leaked alkaline phosphatase demonstrated that PLA disrupted the cell wall integrity of KP and flow cytometry analysis with propidium iodide staining suggested that PLA damaged the cell membrane integrity. Finally, the results of fluorescence spectroscopy and agarose gel electrophoresis demonstrated that PLA bound to genomic DNA and initiated its degradation. The anti-KP mode of action of PLA was attributed to the destruction of the cell wall, membrane, and genomic DNA binding. These findings suggest that PLA has great potential applications as antibiotic substitutes in feed additives against KP infection in animals.
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Affiliation(s)
- Jianyun Yu
- College of Life Sciences, Taizhou key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang, 318000, China
| | - Chunli Hong
- College of Life Sciences, Taizhou key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang, 318000, China
| | - Longfei Yin
- College of Life Sciences, Taizhou key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang, 318000, China
| | - Qingbo Ping
- College of Life Sciences, Taizhou key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang, 318000, China
| | - Gaowei Hu
- College of Life Sciences, Taizhou key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang, 318000, China.
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Nesterovich VM, Belykh DA, Gorokhovets NV, Kurbatov LK, Zamyatnin AA, Ikryannikova LN. Secondary metabolites of plants and their possible role in the "age of superbugs". BIOMEDITSINSKAIA KHIMIIA 2023; 69:371-382. [PMID: 38153052 DOI: 10.18097/pbmc20236906371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Bacterial infections are a serious cause of high morbidity and mortality worldwide. Over the past decades, the drug resistance of bacterial pathogens has been steadily increasing, while the rate of development of new effective antibacterial drugs remains consistently low. The plant kingdom is sometimes called a bottomless well for the search for new antimicrobial therapies. This is due to the fact that plants are easily accessible and cheap to process, while extracts and components of plant origin often demonstrate a high level of biological activity with minor side effects. The variety of compounds obtained from plant raw materials can provide a wide choice of various chemical structures for interaction with various targets inside bacterial cells, while the rapid development of modern biotechnological tools opens the way to the targeted production of bioactive components with desired properties. The objective of this review is to answer the question, whether antimicrobials of plant origin have a chance to play the role of a panacea in the fight against infectious diseases in the "post-antibiotic era".
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Affiliation(s)
| | | | | | | | - A A Zamyatnin
- Sechenov University, Moscow, Russia; Lomonosov Moscow State University, Moscow, Russia
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Chen Y, Zhao J, Liu C, Wu D, Wang X. In-vitro antibacterial activity and mechanism of Monarda didyma essential oils against Carbapenem-resistant Klebsiella pneumoniae. BMC Microbiol 2023; 23:263. [PMID: 37730531 PMCID: PMC10512558 DOI: 10.1186/s12866-023-03015-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 09/11/2023] [Indexed: 09/22/2023] Open
Abstract
To fight the global epidemic of drug-resistant bacteria, essential oils have gained increasing attention as a new source of antibiotics. The antimicrobial activity of Monarda didyma essential oils (MDEO) for the Carbapenem-resistant Klebsiella pneumoniae (CRKP) strains were determined by agar disc diffusion assay and broth microdilution assay. To further understand MDEO efficacy, a time-growth curve was performed. The biofilm formation of CRKP were determined by crystalline violet staining method, additionally, changes in intracellular Adenosine triphosphate (ATP), protein, Alkaline phosphatase (AKP) activities, and membrane integrity were investigated to assess the influence of MDEO on cell membrane damage. Finally, the activities of key enzymes in the tricarboxylic acid (TCA) pathways and pentose phosphate (PPP) pathways were examined to determine the effect of MDEO on the respiratory metabolism of CRKP. This study presents the antibacterial mechanism of MDEO against CRKP with a minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of 1.25 mg/ml. To understand MDEO efficacy, a time-kill kinetics approach was performed. The bactericidal effect of MDEO was evident at 2 h compared to the control at its MIC and 2MIC. Surface electron microscopic and ATP assay studies provided evidence for the multi-target action of MDEO against CRKP. MDEO could inhibit CRKP biofilm formation. MDEO could also cause irreversible damage to the CRKP cell membrane, resulting in the leakage of biological macromolecules (protein, ATP) and the reduction of intracellular enzymes (AKP) activities. Finally, MDEO affected the pathways of respiratory metabolism, such as PPP and TCA pathways. MDEO could reduce the activity of key enzymes (Glucose-6-phosphate dehydrogenase, citrate synthase, isocitrate dehydrogenase, and α-ketoglutarate dehydrogenase) in the PPP and TCA pathways to exert its biological effects against CRKP. These results suggest MDEO can exert inhibitory effects on CRKP, and potential mechanisms of action including inhibition of biofilm formation, damage of cell membrane structure and inhibition of energy metabolism.
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Affiliation(s)
- Ying Chen
- Key laboratory of Microecology-immune Regulatory Network and Related Diseases School of Basic Medicine, Jiamusi University, NO. 148 Xuefu Street, Xiangyang District, Jiamusi, 154000, Heilongjiang Province, China
- The First Affiliated Hospital of Jiamusi University, NO 348 Dexiang street, Xiangyang district, Jiamusi, 154000, Heilongjiang Province, China
| | - Jinda Zhao
- Key laboratory of Microecology-immune Regulatory Network and Related Diseases School of Basic Medicine, Jiamusi University, NO. 148 Xuefu Street, Xiangyang District, Jiamusi, 154000, Heilongjiang Province, China
| | - Chenyu Liu
- Key laboratory of Microecology-immune Regulatory Network and Related Diseases School of Basic Medicine, Jiamusi University, NO. 148 Xuefu Street, Xiangyang District, Jiamusi, 154000, Heilongjiang Province, China
| | - Dongmei Wu
- Key laboratory of Microecology-immune Regulatory Network and Related Diseases School of Basic Medicine, Jiamusi University, NO. 148 Xuefu Street, Xiangyang District, Jiamusi, 154000, Heilongjiang Province, China.
| | - Xianhe Wang
- The First Affiliated Hospital of Jiamusi University, NO 348 Dexiang street, Xiangyang district, Jiamusi, 154000, Heilongjiang Province, China.
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9
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Suleiman MA, Usman MA, Awogbamila SO, Idris UA, Ibrahim FB, Mohammed HO. Therapeutic activity of eugenol towards mitigation of anaemia and oxidative organ damage caused by Plasmodium berghei. Mol Biochem Parasitol 2023; 255:111577. [PMID: 37329986 DOI: 10.1016/j.molbiopara.2023.111577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 06/11/2023] [Accepted: 06/13/2023] [Indexed: 06/19/2023]
Abstract
The parasite responsible for causing malaria infection, Plasmodium, is known to exhibit resistance to a number of already available treatments. This has prompted the continue search for new antimalarial drugs ranging from medicinal plant parts to synthetic compounds. In lieu of this, the mitigative action of the bioactive compound, eugenol towards P. berghei-induced anaemia and oxidative organ damage was investigated following a demonstration of in vitro and in vivo antiplasmodial effects. Mice were infected with chloroquine-sensitive strain of P. berghei and thereafter treated with eugenol at doses of 10 and 20 mg/kg body weight (BW) for seven days. The packed cell volume and redox sensitive biomarkers in the liver, brain and spleen were measured. Our result demonstrated that eugenol significantly (p < 0.05) ameliorated the P. berghei-associated anaemia at a dose of 10 mg/kg BW. In addition, the compound, at a dose of 10 mg/kg BW, significantly (p < 0.05) alleviated the P. berghei-induced organ damage. This evidently confirmed that eugenol plays an ameliorative role towards P. berghei-related pathological alterations. Hence, the study opens up a new therapeutic use of eugenol against plasmodium parasite.
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Affiliation(s)
- Mukhtar Adeiza Suleiman
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria.
| | - Mohammed Aliyu Usman
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | | | - Umar Adam Idris
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Fatima Binta Ibrahim
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
| | - Halimat-Oyibo Mohammed
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria
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Bouguenoun W, Benbelaid F, Mebarki S, Bouguenoun I, Boulmaiz S, Khadir A, Benziane MY, Bendahou M, Muselli A. Selected antimicrobial essential oils to eradicate multi-drug resistant bacterial biofilms involved in human nosocomial infections. BIOFOULING 2023; 39:816-829. [PMID: 37870170 DOI: 10.1080/08927014.2023.2269551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/06/2023] [Indexed: 10/24/2023]
Abstract
Biofilms are the primary source of contamination linked to nosocomial infections by promoting bacterial resistance to antimicrobial agents, including disinfectants. Using essential oils, this study aims to inhibit and eradicate the biofilm of enterobacteria and staphylococci responsible for nosocomial infections at Guelma Hospital, northeastern Algeria. Thymbra capitata, Thymus pallescens and Artemesia herba-alba essential oils were evaluated against clinical strains of Klebsiella pneumoniae, Escherichia coli, and Staphylococcus aureus. The antimicrobial activity of the essential oils under consideration was assessed using an agar disc diffusion assay and the determination of minimum inhibitory concentrations (MICs). In addition, the crystal violet method and scanning electron microscopy (SEM) evaluated biofilm inhibition and eradication by those antimicrobial agents. The results indicate that T. pallescens essential oil was the most effective antimicrobial agent against pathogenic bacteria, with large zones of inhibition (up to 50 mm against S. aureus), low MICs (0.16 to 0.63 mg/mL), and powerful biofilm eradication up to 0.16 mg/mL in both 24 h and 60-min exposure times. Thus, Algerian thyme and oregano could be used in various ways to combat the biofilm that causes nosocomial infection in local hospitals.
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Affiliation(s)
- Widad Bouguenoun
- Department of Biology, Faculty of Exact Sciences and Natural Life Sciences, Mohamed Khider University, Biskra, Algeria
| | - Fethi Benbelaid
- Department of Biology, Faculty of Exact Sciences and Natural Life Sciences, Mohamed Khider University, Biskra, Algeria
- Laboratory of Applied Microbiology to Agrifood, Biomedical and Environment (LAMAABE), Aboubekr Belkaïd University, Imama Biomedical Complex, Tlemcen, Algeria
| | - Salsabil Mebarki
- Department of Biology, Faculty of Exact Sciences and Natural Life Sciences, Mohamed Khider University, Biskra, Algeria
| | - Imane Bouguenoun
- Department of Biology, Faculty of Biology Sciences, and Agricultural Sciences, Mouloud Mammeri University, Tizi-Ouzou, Algeria
| | - Sara Boulmaiz
- Department of Biology, Faculty of Exact Sciences and Natural Life Sciences, Mohamed Khider University, Biskra, Algeria
| | - Abdelmonaim Khadir
- Laboratory of Applied Microbiology to Agrifood, Biomedical and Environment (LAMAABE), Aboubekr Belkaïd University, Imama Biomedical Complex, Tlemcen, Algeria
- Department of Biology, Oran University, Oran, Algeria
| | - Mohammed Yassine Benziane
- Laboratory of Applied Microbiology to Agrifood, Biomedical and Environment (LAMAABE), Aboubekr Belkaïd University, Imama Biomedical Complex, Tlemcen, Algeria
| | - Mourad Bendahou
- Laboratory of Applied Microbiology to Agrifood, Biomedical and Environment (LAMAABE), Aboubekr Belkaïd University, Imama Biomedical Complex, Tlemcen, Algeria
| | - Alain Muselli
- Laboratory of Natural Products Chemistry, University of Corsica, UMR CNRS 6134, Corte, France
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11
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Jiang L, Huang B, Tang J, Jiang P, Chen D, Zhang C. Comprehensive Analysis of Physiological, Biochemical and Flavor Characteristics Changes in Crucian Carp ( Carassius auratus) under Different Concentrations of Eugenol. Foods 2023; 12:2820. [PMID: 37569088 PMCID: PMC10416902 DOI: 10.3390/foods12152820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/20/2023] [Accepted: 07/23/2023] [Indexed: 08/13/2023] Open
Abstract
Eugenol is a widely used fishery anesthetic. This study investigated the effects of various concentrations of eugenol on blood physiological and biochemical indexes, and muscle flavor, in crucian carp (Carassius auratus). To determine the appropriate concentration of eugenol anesthetic for use in crucian carp transportation and production operations, we evaluated seven anesthesia groups of 20, 30, 40, 50, 60, 70, and 80 mg/L and one control group (without eugenol) to determine the effects on blood physiological and biochemical indexes, and muscle flavor. The red blood cells and platelets of crucian carp decreased significantly (p < 0.05) with eugenol treatment. With increasing eugenol concentration, the white blood cells and hemoglobin did not change significantly, whereas lactate dehydrogenase, alkaline phosphatase, alanine aminotransferase, and aspartate aminotransferase increased significantly (p < 0.05). The content of phosphorus, magnesium, and sodium increased after anesthesia, whereas the content of potassium decreased with increasing eugenol concentration. After anesthesia, the content of albumin and total protein in the serum decreased with increasing eugenol concentration (p < 0.05); triglyceride first increased and subsequently decreased (p < 0.05); blood glucose content first increased and then decreased (p < 0.05); and no significant difference was observed in total cholesterol content (p > 0.05). No significant difference was observed in muscle glycogen and liver glycogen content after eugenol anesthesia (p > 0.05). The eugenol-based anesthesia test did not indicate major liver histomorphological effects, but the very small number of gill sheet edema cases observed requires further study. Analysis of electronic nose data indicated that eugenol treatment affected the flavor of the fish. The anesthesia concentration of 20-80 mg/L had some effect on the physiology and biochemistry of crucian carp, thus providing a reference for the application of eugenol in crucian carp transportation and experimental research.
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Affiliation(s)
- Lexia Jiang
- Shandong Key Laboratory of Storage and Transportation Technology of Agricultural Products, Shandong Institute of Commerce and Technology, Jinan 250103, China; (L.J.); (B.H.); (J.T.); (P.J.); (D.C.)
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Baosheng Huang
- Shandong Key Laboratory of Storage and Transportation Technology of Agricultural Products, Shandong Institute of Commerce and Technology, Jinan 250103, China; (L.J.); (B.H.); (J.T.); (P.J.); (D.C.)
- National Engineering Research Center for Agricultural Products Logistics, Jinan 250103, China
- Shandong GuoNong Logistics Technology Co., Ltd., Jinan 250103, China
| | - Jiaming Tang
- Shandong Key Laboratory of Storage and Transportation Technology of Agricultural Products, Shandong Institute of Commerce and Technology, Jinan 250103, China; (L.J.); (B.H.); (J.T.); (P.J.); (D.C.)
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Peihong Jiang
- Shandong Key Laboratory of Storage and Transportation Technology of Agricultural Products, Shandong Institute of Commerce and Technology, Jinan 250103, China; (L.J.); (B.H.); (J.T.); (P.J.); (D.C.)
- National Engineering Research Center for Agricultural Products Logistics, Jinan 250103, China
| | - Dongjie Chen
- Shandong Key Laboratory of Storage and Transportation Technology of Agricultural Products, Shandong Institute of Commerce and Technology, Jinan 250103, China; (L.J.); (B.H.); (J.T.); (P.J.); (D.C.)
- National Engineering Research Center for Agricultural Products Logistics, Jinan 250103, China
| | - Changfeng Zhang
- Shandong Key Laboratory of Storage and Transportation Technology of Agricultural Products, Shandong Institute of Commerce and Technology, Jinan 250103, China; (L.J.); (B.H.); (J.T.); (P.J.); (D.C.)
- National Engineering Research Center for Agricultural Products Logistics, Jinan 250103, China
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12
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Venkatappa MM, Udagani C, Hanume Gowda SM, Venkataramaiah S, Casini R, Moussa IM, Achur R, Sannaningaiah D, Elansary HO. Green Synthesised TiO 2 Nanoparticles-Mediated Terenna asiatica: Evaluation of Their Role in Reducing Oxidative Stress, Inflammation and Human Breast Cancer Proliferation. Molecules 2023; 28:5126. [PMID: 37446788 DOI: 10.3390/molecules28135126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 06/23/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Oxidative stress and chronic inflammation interplay with the pathogenesis of cancer. Breast cancer in women is the burning issue of this century, despite chemotherapy and magnetic therapy. The management of secondary complications triggered by post-chemotherapy poses a great challenge. Thus, identifying target-specific drugs with anticancer potential without secondary complications is a challenging task for the scientific community. It is possible that green technology has been employed in a greater way in order to fabricate nanoparticles by amalgamating plants with medicinal potential with metal oxide nanoparticles that impart high therapeutic properties with the least toxicity. Thus, the present study describes the synthesis of Titanium dioxide nanoparticles (TiO2 NPs) using aqueous Terenna asiatica fruit extract, with its antioxidant, anti-inflammatory and anticancer properties. The characterisation of TiO2 NPs was carried out using a powdered X-ray diffractometer (XRD), Fourier transform infrared (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray diffraction (EDX), high-resolution transmission electron microscopy (HR-TEM), dynamic light scattering (DLS), and zeta-potential. TiO2 NPs showed their antioxidant property by scavenging 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radicals in a dose-dependent manner with an IC50 value of 80.21 µg/µL. To ascertain the observed antioxidant potential of TiO2 NPs, red blood cells (RBC) were used as an in vitro model system. Interestingly, TiO2 NPs significantly ameliorated all the stress parameters, such as lipid peroxidation (LPO), protein carbonyl content (PCC), total thiol (TT), superoxide dismutase (SOD), and catalase (CAT) in sodium nitrite (NaNO2)-induced oxidative stress, in RBC. Furthermore, TiO2 NPs inhibited RBC membrane lysis and the denaturation of both egg and bovine serum albumin, significantly in a dose-dependent manner, suggesting its anti-inflammatory property. Interestingly, TiO2 NPs were found to kill the MCF-7 cells as a significant decrease in cell viability of the MCF-7 cell lines was observed. The percentage of growth inhibition of the MCF-7 cells was compared to that of untreated cells at various doses (12.5, 25, 50, 100, and 200 µg/mL). The IC50 value of TiO2 NPs was found to be (120 µg/mL). Furthermore, the Annexin V/PI staining test was carried out to confirm apoptosis. The assay indicated apoptosis in cancer cells after 24 h of exposure to TiO2 NPs (120 µg/mL). The untreated cells showed no significant apoptosis in comparison with the standard drug doxorubicin. In conclusion, TiO2 NPs potentially ameliorate NaNO2-induced oxidative stress in RBC, inflammation and MCF-7 cells proliferation.
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Affiliation(s)
- Manjula M Venkatappa
- Department of Biochemistry, Kuvempu University, Shankaraghatta, Shimoga 577451, India
| | - Chikkappa Udagani
- Department of Physics, University College of Science, Tumkur University, Tumkur 572103, India
| | | | - Shivakumar Venkataramaiah
- Centre for Bioscience and Innovation, Department of Studies and Research in Biochemistry, Tumkur University, Tumkur 572103, India
| | - Ryan Casini
- School of Public Health, University of California, Berkeley, 2121 Berkeley Way, Berkeley, CA 94704, USA
| | - Ihab Mohamed Moussa
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Rajeshwara Achur
- Department of Biochemistry, Kuvempu University, Shankaraghatta, Shimoga 577451, India
| | - Devaraja Sannaningaiah
- Centre for Bioscience and Innovation, Department of Studies and Research in Biochemistry, Tumkur University, Tumkur 572103, India
| | - Hosam O Elansary
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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13
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Rodrigues TC, Gois IB, Fernandes RPM, Blank AF, Sandes RDD, Leite Neta MTS, Narain N, Arrigoni-Blank MDF. Chemical characterization and antimicrobial activity of essential oils from Croton grewioides Baill. accessions on the phytopathogen Xanthomonas campestris pv. campestris. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 193:105454. [PMID: 37248000 DOI: 10.1016/j.pestbp.2023.105454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/31/2023]
Abstract
Croton grewioides Baill. is an aromatic species with proven bioactive properties. Considering the potential of the species, the aim of this study was to chemically characterize and evaluate the in vitro antibacterial activity of the essential oils of C. grewioides on Xanthomonas campestris pv. campestris. The essential oils of the accessions of C. grewioides were extracted by the hydrodistillation method and analyzed by gas chromatography - mass spectrometry. For determination of the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the essential oils and of the compound eugenol, the microdilution method was used at concentrations that ranged from 125 to 4000 μg.mL-1. Streptomycin sulfate was used as a positive control (12.5 to 100 μg.mL-1). Growth kinetics and the membrane permeability trial were evaluated for the concentrations 2×, 1×, 1/2×, 1/4×, and 1/8× MIC of the essential oil CGR-108. The major compounds identified in the essential oils were eugenol, methyl eugenol, and methyl chavicol. The essential oil of the accession CGR-108 had a lower MIC (> 500 and < 1000 μg.mL-1) and MBC equal to <2000 μg.mL-1. For eugenol, MIC was obtained with contractions >250 and < 500 μg.mL-1 and MBC with >500 μg.mL-1 and < 1000 μg.mL-1. A loss of cell viability of the bacteria was observed after 30 min of exposure to the essential oil of the accession CGR-108 at the concentrations of 2× and 1× MIC, which was proven by the fluorescence intensity with propidium iodide. The essential oils of Croton grewioides Baill. and the compound eugenol show antibacterial potential on Xanthomonas campestris pv. campestris.
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Affiliation(s)
- Taíse Conceição Rodrigues
- Department of Agricultural Engineering, Federal University of Sergipe, Av. Marechal Rondon s/n, 4100-000 São Cristóvão, Sergipe, Brazil
| | - Itamara Bomfim Gois
- Department of Agricultural Engineering, Federal University of Sergipe, Av. Marechal Rondon s/n, 4100-000 São Cristóvão, Sergipe, Brazil
| | | | - Arie Fitzgerald Blank
- Department of Agricultural Engineering, Federal University of Sergipe, Av. Marechal Rondon s/n, 4100-000 São Cristóvão, Sergipe, Brazil
| | - Rafael Donizete Dutra Sandes
- Department of Food Technology, Federal University of Sergipe, Av. Marechal Rondon s/n, 4100-000 São Cristóvão, Sergipe, Brazil
| | | | - Narendra Narain
- Department of Food Technology, Federal University of Sergipe, Av. Marechal Rondon s/n, 4100-000 São Cristóvão, Sergipe, Brazil
| | - Maria de Fátima Arrigoni-Blank
- Department of Agricultural Engineering, Federal University of Sergipe, Av. Marechal Rondon s/n, 4100-000 São Cristóvão, Sergipe, Brazil.
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14
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Umam K, Feng CS, Yang G, Tu PC, Lin CY, Yang MT, Kuo TF, Yang WC, Tran Nguyen Minh H. Phytochemistry, Pharmacology and Mode of Action of the Anti-Bacterial Artemisia Plants. Bioengineering (Basel) 2023; 10:633. [PMID: 37370564 DOI: 10.3390/bioengineering10060633] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 06/29/2023] Open
Abstract
Over 70,000 people die of bacterial infections worldwide annually. Antibiotics have been liberally used to treat these diseases and, consequently, antibiotic resistance and drug ineffectiveness has been generated. In this environment, new anti-bacterial compounds are being urgently sought. Around 500 Artemisia species have been identified worldwide. Most species of this genus are aromatic and have multiple functions. Research into the Artemisia plants has expanded rapidly in recent years. Herein, we aim to update and summarize recent information about the phytochemistry, pharmacology and toxicology of the Artemisia plants. A literature search of articles published between 2003 to 2022 in PubMed, Google Scholar, Web of Science databases, and KNApSAcK metabolomics databases revealed that 20 Artemisia species and 75 compounds have been documented to possess anti-bacterial functions and multiple modes of action. We focus and discuss the progress in understanding the chemistry (structure and plant species source), anti-bacterial activities, and possible mechanisms of these phytochemicals. Mechanistic studies show that terpenoids, flavonoids, coumarins and others (miscellaneous group) were able to destroy cell walls and membranes in bacteria and interfere with DNA, proteins, enzymes and so on in bacteria. An overview of new anti-bacterial strategies using plant compounds and extracts is also provided.
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Affiliation(s)
- Khotibul Umam
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan
- Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung 40227, Taiwan
- Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan, and National Chung-Hsing University, Taichung 40227, Taiwan
- Faculty of Life Science and Technology, Biotechnology Department, Sumbawa University of Technology, Sumbawa Besar 84371, NTB, Indonesia
| | - Ching-Shan Feng
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Greta Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Ping-Chen Tu
- Sun Ten Pharmaceutical Co., Ltd., New Taipei City 23143, Taiwan
| | - Chih-Yu Lin
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Meng-Ting Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Tien-Fen Kuo
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Wen-Chin Yang
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 11529, Taiwan
- Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung 40227, Taiwan
- Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan, and National Chung-Hsing University, Taichung 40227, Taiwan
- Department of Life Sciences, National Chung-Hsing University, Taichung 40227, Taiwan
- Graduate Institute of Integrated Medicine, China Medical University, Taichung 40402, Taiwan
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15
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Zhang Y, Zhang Y, Ma R, Sun W, Ji Z. Antibacterial Activity of Epigallocatechin Gallate (EGCG) against Shigella flexneri. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4676. [PMID: 36981585 PMCID: PMC10048926 DOI: 10.3390/ijerph20064676] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Shigella flexneri (S. flexneri), a major intestinal pathogen, is a global public health concern. The biofilms formed by S. flexneri threaten environmental safety, since they could promote the danger of environmental contamination and strengthen the disease-causing properties of bacteria. Epigallocatechin gallate (EGCG) is an important catechin in tea, which has a high antibacterial activity. However, its antibacterial mechanism is still unclear. This research aims to quantify the antibacterial function and investigate the possible mechanism of EGCG inhibition of S. flexneri. The minimum inhibitory concentration (MIC) of EGCG against planktonic S. flexneri in the investigation was measured to be 400 μg/mL. Besides, SDS-PAGE and field emission scanning electron microscopy showed that EGCG interfered with protein synthesis and changed bacteria morphology. Through controlling the expression of the mdoH gene, EGCG was found to be able to prevent an S. flexneri biofilm extracellular polysaccharide from forming, according to experiments utilizing the real-time PCR test. Additional research revealed that EGCG might stimulate the response of S. flexneri to oxidative stress and prevent bacterial growth. These findings suggest that EGCG, a natural compound, may play a substantial role in S. flexneri growth inhibition.
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Affiliation(s)
- Yini Zhang
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Yeyue Zhang
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Ruiqing Ma
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Wanting Sun
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Zheng Ji
- School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
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16
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Su F, Yang G, Hu D, Ruan C, Wang J, Zhang Y, Zhu Q. Chemical Composition, Antibacterial and Antioxidant Activities of Essential Oil from Centipeda minima. Molecules 2023; 28:molecules28020824. [PMID: 36677882 PMCID: PMC9861044 DOI: 10.3390/molecules28020824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/31/2022] [Accepted: 01/10/2023] [Indexed: 01/18/2023] Open
Abstract
This study elucidated the chemical composition of essential oil from Centipeda minima (EOCM) and its antibacterial and antioxidant activities with two chemical monomers thymol and carvacrol. The main chemical composition of EOCM, analyzed by GC-MS, were trans-chrysanthenyl acetate, thymol, aromadendrene and β-caryophyllene. In the screening of antibacterial activity against S. aureus, two monomers with antibacterial activity were obtained: thymol and carvacrol. The MIC of EOCM, thymol and carvacrol were 0.625 mg/mL, 0.156 mg/mL and 0.156 mg/mL, respectively. The experimental results were shown that three drugs could inhibit the growth of S. aureus and inhibit the formation of biofilm by changing the permeability of cell membrane and interfering with the metabolic activities in bacteria. The scavenging effects of the three drugs on DPPH radical and hydroxyl radical showed that the antioxidant effect of the three drugs was EOCM > carvacrol > thymol.
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Affiliation(s)
- Fan Su
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Gan Yang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Datong Hu
- Shandong Academy of Pharmaceutical Sciences, Jinan 250098, China
| | - Chen Ruan
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jing Wang
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Yingying Zhang
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
- Correspondence: (Y.Z.); (Q.Z.)
| | - Qingjun Zhu
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
- Correspondence: (Y.Z.); (Q.Z.)
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17
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Liu W, Chen G, Dou K, Yi B, Wang D, Zhou Q, Sun Y. Eugenol eliminates carbapenem-resistant Klebsiella pneumoniae via reactive oxygen species mechanism. Front Microbiol 2023; 14:1090787. [PMID: 36876091 PMCID: PMC9978153 DOI: 10.3389/fmicb.2023.1090787] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 01/09/2023] [Indexed: 02/18/2023] Open
Abstract
Multidrug-resistant (MDR) bacterial infections have gained increasing attention due to the high incidence rates and high mortality, especially for the carbapenem-resistant Klebsiella pneumoniae (CRKP) infection that can cause severe complications (e.g., pneumonia and sepsis) in multiple organs. Therefore, the development of new antibacterial agents against CRKP is imperative. Inspired by natural plant antibacterial agents with broad-spectrum antibacterial properties, the antibacterial/biofilm activity of eugenol (EG) on CRKP and their underlying mechanisms are investigated in our work. It is found that EG exhibits remarkable inhibitory effects on planktonic CRKP in a dose-dependent fashion. Meanwhile, the destruction of membrane integrity induced by the formation of reactive oxygen species (ROS) and glutathione reduction results in the leakage of bacterial cytoplasmic components, including DNA, β-galactosidase, and protein. Moreover, when EG contacts with bacterial biofilm, the whole thickness of the dense biofilm matrix decreases, and the integrity is destroyed. Overall, this work verified that EG could eliminate CRKP via ROS-induced membrane rupture, which offers vital evidence to explain the antibacterial ability of EG against CRKP.
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Affiliation(s)
- Wei Liu
- Department of Critical Care Medicine, College of Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Guang Chen
- Department of Critical Care Medicine, College of Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Keke Dou
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Institute for Translational Medicine, Qingdao, China
| | - Bingcheng Yi
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Danyang Wang
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Institute for Translational Medicine, Qingdao, China
| | - Qihui Zhou
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Yunbo Sun
- Department of Critical Care Medicine, College of Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
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Firmanda A, Fahma F, Warsiki E, Syamsu K, Arnata IW, Sartika D, Suryanegara L, Qanytah, Suyanto A. Antimicrobial mechanism of nanocellulose composite packaging incorporated with essential oils. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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19
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Hudiță A, Grumezescu V, Gherasim O, Grumezescu AM, Dorcioman G, Negut I, Oprea OC, Vasile BȘ, Gălățeanu B, Curuțiu C, Holban AM. MAPLE Processed Nanostructures for Antimicrobial Coatings. Int J Mol Sci 2022; 23:ijms232315355. [PMID: 36499682 PMCID: PMC9738358 DOI: 10.3390/ijms232315355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Despite their great benefits for debilitated patients, indwelling devices are prone to become easily colonized by resident and opportunistic microorganisms, which have the ability to attach to their surfaces and form highly specialized communities called biofilms. These are extremely resistant to host defense mechanisms and antibiotics, leading to treatment failure and device replacement, but also to life-threatening complications. In this study, we aimed to optimize a silica (SiO2)-coated magnetite (Fe3O4)-based nanosystem containing the natural antimicrobial agent, eugenol (E), suitable for MAPLE (matrix-assisted pulsed laser evaporation) deposition as a bioactive coating for biomedical applications. X-ray diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy, and transmission electron microscopy investigations were employed to characterize the obtained nanosystems. The in vitro tests evidenced the superior biocompatibility of such nanostructured coatings, as revealed by their non-cytotoxic activity and ability to promote cellular proliferation and sustain normal cellular development of dermal fibroblasts. Moreover, the obtained nanocoatings did not induce proinflammatory events in human blood samples. Our studies demonstrated that Fe3O4 NPs can improve the antimicrobial activity of E, while the use of a SiO2 matrix may increase its efficiency over prolonged periods of time. The Fe3O4@SiO2 nanosystems showed excellent biocompatibility, sustaining human dermal fibroblasts' viability, proliferation, and typical architecture. More, the novel coatings lack proinflammatory potential as revealed by the absence of proinflammatory cytokine expression in response to human blood sample interactions.
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Affiliation(s)
- Ariana Hudiță
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
- Correspondence:
| | - Oana Gherasim
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 011061 Bucharest, Romania
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov No. 3, 050044 Bucharest, Romania
| | - Gabriela Dorcioman
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Irina Negut
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Ovidiu-Cristian Oprea
- Academy of Romanian Scientists, Ilfov No. 3, 050044 Bucharest, Romania
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania
| | - Bogdan Ștefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Bianca Gălățeanu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Carmen Curuțiu
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei Street, 077206 Bucharest, Romania
| | - Alina Maria Holban
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei Street, 077206 Bucharest, Romania
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20
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Su R, Bai X, Liu X, Song L, Liu X, Zhan X, Guo D, Wang Y, Chang Y, Shi C. Antibacterial Mechanism of Eugenol Against Shigella sonnei and Its Antibacterial Application in Lettuce Juice. Foodborne Pathog Dis 2022; 19:779-786. [PMID: 36367551 DOI: 10.1089/fpd.2022.0046] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Shigella sonnei is a species of Shigella, and the infection rate of S. sonnei is increasing year by year. Eugenol is an active ingredient in clove essential oil and is a generally recognized as safe (GRAS)-certified food ingredient. The mechanism of inhibition of S. sonnei by eugenol has been investigated in this study. The minimum inhibitory concentration of eugenol against both S. sonnei ATCC 25931 and S. sonnei CMCC 51592 was 0.5 mg/mL and minimum bactericidal concentration (MBC) for both strains was 0.8 mg/mL. The inhibition effect of eugenol against S. sonnei was due to increased levels of reactive oxygen species in cells, changed cell membrane permeability, and induced cell membrane dysfunction, for instance, cell membrane hyperpolarization and intracellular ATP concentration drops. The results of confocal laser scanning microscope and field emission scanning electron microscopy showed that eugenol leads to decreased cell membrane integrity, resulting in changed cell morphology. Moreover, eugenol inactivated S. sonnei in Luria-Bertani (LB) broth and lettuce juice. These results indicated that eugenol could inactivate S. sonnei and has the potential to control S. sonnei in the food industry.
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Affiliation(s)
- Ruiying Su
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiangyang Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiaoxiao Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Luyi Song
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xue Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiangjun Zhan
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Du Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yutang Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yunhe Chang
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, China
| | - Chao Shi
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
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21
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Vazquez NM, Moreno S, Galván EM. Exposure of multidrug-resistant Klebsiella pneumoniae biofilms to 1,8-cineole leads to bacterial cell death and biomass disruption. Biofilm 2022; 4:100085. [PMID: 36249125 PMCID: PMC9562914 DOI: 10.1016/j.bioflm.2022.100085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/29/2022] [Accepted: 10/03/2022] [Indexed: 11/27/2022] Open
Abstract
Klebsiella pneumoniae is a common cause of health-care associated infections. The rise of antibiotic resistance and the ability to form biofilm among K. pneumoniae strains are two key factors associated with antibiotic treatment failure. The present study investigates the antibiofilm activity of 1,8-cineole against preformed biofilms of multidrug-resistant extended-spectrum β-lactamase-producing K. pneumoniae clinical isolates. To evaluate the antibiofilm activity, cellular viability was analyzed by colony-forming units counting and live/dead staining. In addition, biofilm biomass was evaluated by crystal violet and the biofilm matrix was stained with calcofluor white and observed by confocal laser scanning microscopy. A time- and concentration-dependent effect of the phytochemical over biofilm cell viability was observed revealing that 1% (v/v) 1,8-cineole during 1 h was the optimal treatment condition displaying a significant reduction of cell viability in the preformed biofilms (2.5-5.3 log cfu/cm2). Furthermore, confocal laser scanning microscopy after SYTO-9 and propidium iodide staining showed that 1,8-cineole was capable of killing bacteria throughout all layers of the biofilm. The compound also caused a biofilm disruption (30-62% biomass reduction determined by crystal violet staining) and a significant decrease in biofilm matrix density. Altogether, our results demonstrate that 1,8-cineole is a promising candidate as a novel antibiofilm agent against multidrug-resistant K. pneumoniae strains producing extended-spectrum β-lactamases, given its capability to disrupt the structure and to kill cells within the biofilm.
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Affiliation(s)
- Nicolas M. Vazquez
- Laboratorio de Farmacología de Bioactivos Vegetales, Departamento de Investigaciones Bioquímicas y Farmacéuticas, Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico (CEBBAD), Universidad Maimónides, Buenos Aires, Argentina,Laboratorio de Patogénesis Bacteriana, Departamento de Investigaciones Bioquímicas y Farmacéuticas, Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico (CEBBAD), Universidad Maimónides, Buenos Aires, Argentina,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Silvia Moreno
- Laboratorio de Farmacología de Bioactivos Vegetales, Departamento de Investigaciones Bioquímicas y Farmacéuticas, Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico (CEBBAD), Universidad Maimónides, Buenos Aires, Argentina,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina,Corresponding author. Laboratorio de Farmacología de Bioactivos Vegetales, Departamento de Investigaciones Bioquímicas y Farmacéuticas, Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico (CEBBAD), Universidad Maimónides, Buenos Aires, Argentina.
| | - Estela M. Galván
- Laboratorio de Patogénesis Bacteriana, Departamento de Investigaciones Bioquímicas y Farmacéuticas, Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico (CEBBAD), Universidad Maimónides, Buenos Aires, Argentina,Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina,Corresponding author. Laboratorio de Patogénesis Bacteriana, Departamento de Investigaciones Bioquímicas y Farmacéuticas, Centro de Estudios Biomédicos, Biotecnológicos, Ambientales y Diagnóstico (CEBBAD), Universidad Maimónides, Buenos Aires, Argentina.
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22
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Kasthuri T, Swetha TK, Bhaskar JP, Pandian SK. Rapid-killing efficacy substantiates the antiseptic property of the synergistic combination of carvacrol and nerol against nosocomial pathogens. Arch Microbiol 2022; 204:590. [PMID: 36053368 PMCID: PMC9438373 DOI: 10.1007/s00203-022-03197-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/08/2022] [Accepted: 08/18/2022] [Indexed: 12/05/2022]
Abstract
Globally, new classes of synthetic and natural antibiotics and antivirulents have continuously been validated for their potential broad-spectrum antagonistic activity with the aim of identifying an effective active molecule to prevent the spread of infectious agents in both food industry and medical field. In view of this, present study is aimed at evaluating the rapid killing efficacy of bioactive molecules Carvacrol (C) and Nerol (N) through British Standard European Norm 1276: phase2/step1 (EN1276) protocol. Active molecules C and N showed broad-spectrum antimicrobial activity against the test strains Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Enterococcus hirae at concentration range of 78.125, 625, 156.25 and 312.5 μg/mL, respectively, for C, and 625 μg/mL for N. Whereas, combinatorial approach showed efficient activity with four times reduced concentration of C and N at 78.125 and 156.25 µg/mL, respectively, against test strains. Further, EN1276 results proved the rapid killing efficacy of test strains in 1 min of contact time with significant (> 5 log) growth reduction at 100X concentration of actives. SEM analysis and reduced concentration of protease, lipids and carbohydrate contents of treated group biofilm components ascertained preformed biofilm disruption potential of C + N on polystyrene and nail surfaces. C + N at synergistic concentration exhibited no adverse effect on HaCaT cells at 78.125 µg/mL (C) + 156.25 µg/mL (N). Taken together, based on the observed experimental results, present study evidence the antiseptic/disinfectant ability of C + N and suggest that the combination can preferentially be used in foam-based hand wash formulations.
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Affiliation(s)
- Thirupathi Kasthuri
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | | | | | - Shunmugiah Karutha Pandian
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
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23
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Effects of cinnamaldehyde against planktonic bacteria and biofilm formation of Shigella flexneri. Microb Pathog 2022; 171:105741. [PMID: 36038086 DOI: 10.1016/j.micpath.2022.105741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/24/2022]
Abstract
Cinnamaldehyde (CA) has demonstrated anti-inflammatory, anti-tumor and anti-cancer activities; Its antimicrobial and antibiofilm actions against Shigella flexneri, on the other hand, have not been investigated. Sh. flexneri is a gram-negative foodborne pathogen that can be widely found in nature and some industrial production environments. In this current research, our aim was to examine the influences of CA on planktonic bacteria and biofilm formation. The minimum inhibitory concentration (MIC) of CA against Sh. flexneri strain was 100 μg/mL, while bacteria treated with CA showed a longer lag phase compared with the untreated control. CA effectively inactivated the Sh. flexneri in LB broth and fresh lettuce juice. CA treatment resulted in cell membrane permeability changes and dysfunction, as proven by cell membrane depolarization, decreased intracellular ATP concentration. In addition, CA was also discovered to increase the level of reactive oxygen species (ROS) in cells, and induce morphological changes in cells. Crystal violet staining showed that the biomass of biofilm was decreased significantly with CA in 24 h. Light microscopy and field emission scanning electron microscopy (FESEM) observations demonstrated decreased biofilm adhesion and destruction of biofilm architecture after treatment with CA. These findings indicated that CA acts as a natural bacteriostatic agent to control Sh. flexneri in food processing and production.
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24
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Wang WJ, Liu CC, Li YT, Li MQ, Fu YT, Li XC, Jie-Kang, Qian WD. Antifungal and Antibiofilm In Vitro Activities of Ursolic Acid on Cryptococcus neoformans. Curr Microbiol 2022; 79:293. [PMID: 35972650 DOI: 10.1007/s00284-022-02992-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 08/04/2022] [Indexed: 11/25/2022]
Abstract
Ursolic acid (UA) exists in a variety of medicinal plants. UA exhibits antimicrobial activity against several microorganisms; however, little is known regarding the potential antifungal effect of UA on Cryptococcus neoformans (C. neoformans). The antifungal and antibiofilm activities of UA on C. neoformans H99 were evaluated in this study. Minimum inhibitory concentration (MIC) of UA against C. neoformans H99 was determined by microdilution technique, and its action mode was elucidated by clarifying the variations in cell membrane integrity, capsule, and melanin production. Moreover, the inhibition and dispersal effects of UA on biofilm formation and mature biofilms by C. neoformans H99 were evaluated using crystal violet (CV) assay, optical microscopy, field emission scanning electron microscopy and confocal laser scanning microscopy. The results indicated that the MIC value of UA against C. neoformans H99 was 0.25 mg/mL. UA disrupted the cell membrane integrity, inhibited the capsule and melanin production of C. neoformans H99 in a concentration-dependent manner. Further, UA presented the inhibitory effect on biofilm formation and dispersed mature biofilms, as well as compromised the cell membrane integrity of C. neoformans H99 cells within biofilms. Together, these results indicate that UA might be a potential therapeutic option for the treatment of C. neoformans-related infections.
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Affiliation(s)
- Wen-Jing Wang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Chan-Chan Liu
- Xi'an Medical College, Xi'an, 710309, People's Republic of China
| | - Yan-Tong Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Miao-Qian Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Yu-Ting Fu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Xin-Chen Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China
| | - Jie-Kang
- Shaanxi Institute of Product Quality Supervision and Inspection, Xi'an, 710048, People's Republic of China
| | - Wei-Dong Qian
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, People's Republic of China. .,Department of Pharmacy, School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China.
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25
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Investigating the Antituberculosis Activity of Selected Commercial Essential Oils and Identification of Active Constituents Using a Biochemometrics Approach and In Silico Modeling. Antibiotics (Basel) 2022; 11:antibiotics11070948. [PMID: 35884202 PMCID: PMC9311982 DOI: 10.3390/antibiotics11070948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/08/2022] [Accepted: 07/10/2022] [Indexed: 02/04/2023] Open
Abstract
Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis which has become prevalent due to the emergence of resistant M. tuberculosis strains. The use of essential oils (EOs) as potential anti-infective agents to treat microbial infections, including TB, offers promise due to their long historical use and low adverse effects. The current study aimed to investigate the in vitro anti-TB activity of 85 commercial EOs, and identify compounds responsible for the activity, using a biochemometrics approach. A microdilution assay was used to determine the antimycobacterial activity of the EOs towards some non-pathogenic Mycobacterium strains. In parallel, an Alamar blue assay was used to investigate antimycobacterial activity towards the pathogenic M. tuberculosis strain. Chemical profiling of the EOs was performed using gas chromatography-mass spectrometry (GC-MS) analysis. Biochemometrics filtered out putative biomarkers using orthogonal projections to latent structures discriminant analysis (OPLS-DA). In silico modeling was performed to identify potential therapeutic targets of the active biomarkers. Broad-spectrum antimycobacterial activity was observed for Cinnamomum zeylanicum (bark) (MICs = 1.00, 0.50, 0.25 and 0.008 mg/mL) and Levisticum officinale (MICs = 0.50, 0.5, 0.5 and 0.004 mg/mL) towards M. smegmatis, M. fortuitum, M. gordonae and M. tuberculosis, respectively. Biochemometrics predicted cinnamaldehyde, thymol and eugenol as putative biomarkers. Molecular docking demonstrated that cinnamaldehyde could serve as a scaffold for developing a novel class of antimicrobial compounds by targeting FtsZ and PknB from M. tuberculosis.
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26
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Badescu B, Buda V, Romanescu M, Lombrea A, Danciu C, Dalleur O, Dohou AM, Dumitrascu V, Cretu O, Licker M, Muntean D. Current State of Knowledge Regarding WHO Critical Priority Pathogens: Mechanisms of Resistance and Proposed Solutions through Candidates Such as Essential Oils. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11141789. [PMID: 35890423 PMCID: PMC9319935 DOI: 10.3390/plants11141789] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 05/05/2023]
Abstract
The rise of multidrug-resistant (MDR) pathogens has become a global health threat and an economic burden in providing adequate and effective treatment for many infections. This large-scale concern has emerged mainly due to mishandling of antibiotics (ABs) and has resulted in the rapid expansion of antimicrobial resistance (AMR). Nowadays, there is an urgent need for more potent, non-toxic and effective antimicrobial agents against MDR strains. In this regard, clinicians, pharmacists, microbiologists and the entire scientific community are encouraged to find alternative solutions in treating infectious diseases cause by these strains. In its "10 global issues to track in 2021", the World Health Organization (WHO) has made fighting drug resistance a priority. It has also issued a list of bacteria that are in urgent need for new ABs. Despite all available resources, researchers are unable to keep the pace of finding novel ABs in the face of emerging MDR strains. Traditional methods are increasingly becoming ineffective, so new approaches need to be considered. In this regard, the general tendency of turning towards natural alternatives has reinforced the interest in essential oils (EOs) as potent antimicrobial agents. Our present article aims to first review the main pathogens classified by WHO as critical in terms of current AMR. The next objective is to summarize the most important and up-to-date aspects of resistance mechanisms to classical antibiotic therapy and to compare them with the latest findings regarding the efficacy of alternative essential oil therapy.
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Affiliation(s)
- Bianca Badescu
- Doctoral School, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania;
| | - Valentina Buda
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (A.L.); (C.D.)
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Phamacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania;
- Correspondence: (V.B.); (M.R.); Tel.: +40-755100408 (V.B.)
| | - Mirabela Romanescu
- Doctoral School, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania;
- Correspondence: (V.B.); (M.R.); Tel.: +40-755100408 (V.B.)
| | - Adelina Lombrea
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (A.L.); (C.D.)
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Phamacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania;
| | - Corina Danciu
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (A.L.); (C.D.)
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Phamacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania;
| | - Olivia Dalleur
- Louvain Drug Research Institute, Université Catholique de Louvain, Avenue Emmanuel Mounier 73, 1200 Brussels, Belgium; (O.D.); (A.M.D.)
| | - Angele Modupe Dohou
- Louvain Drug Research Institute, Université Catholique de Louvain, Avenue Emmanuel Mounier 73, 1200 Brussels, Belgium; (O.D.); (A.M.D.)
- Faculté des Sciences de la Santé, Université d’Abomey Calavi, Cotonou 01 BP 188, Benin
| | - Victor Dumitrascu
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (V.D.); (O.C.); (M.L.)
| | - Octavian Cretu
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (V.D.); (O.C.); (M.L.)
| | - Monica Licker
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (V.D.); (O.C.); (M.L.)
- Multidisciplinary Research Center on Antimicrobial Resistance, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania
| | - Delia Muntean
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Phamacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania;
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania; (V.D.); (O.C.); (M.L.)
- Multidisciplinary Research Center on Antimicrobial Resistance, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania
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27
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Qian W, Wang W, Zhang J, Fu Y, Liu Q, Li X, Wang T, Zhang Q. Exploitation of the antifungal and antibiofilm activities of plumbagin against Cryptococcus neoformans. BIOFOULING 2022; 38:558-574. [PMID: 35818738 DOI: 10.1080/08927014.2022.2094260] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/02/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
Cryptococcus neoformans is an important opportunistic fungal pathogen that causes various infections. Here, the antifungal and antibiofilm activities of plumbagin against C. neoformans and the underlying mechanisms were evaluated. The minimum inhibitory concentration (MIC) of plumbagin against C. neoformans H99 was 8 μg ml-1. Plumbagin disrupted the cell membrane integrity and reduced the metabolic activities of C. neoformans H99. C. neoformans H99 biofilm cells were damaged by plumbagin at a concentration of 64 μg ml-1, whereas 48-h mature biofilms were dispersed at a plumbagin concentration of 128 μg ml-1. Whole-transcriptome analysis of plumbagin-treated C. neoformans H99 in the biofilm and planktonic states identified differentially expressed genes enriched in several important cellular processes (cell membrane, ribosome biogenesis, fatty acid synthesis, melanin and capsule production). Notably, plumbagin damaged biofilm cells by downregulating FAS1 and FAS2 expression. Thus, plumbagin can be exploited as an antifungal agent to combat C. neoformans-related infections.
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Affiliation(s)
- Weidong Qian
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Wenjing Wang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Jianing Zhang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Yuting Fu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Qiming Liu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Xinchen Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Ting Wang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an, PR China
| | - Qian Zhang
- Department of Dermatology, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, PR China
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28
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Gürbüz M, İrem Omurtag Korkmaz B. The anti-campylobacter activity of eugenol and its potential for poultry meat safety: A review. Food Chem 2022; 394:133519. [PMID: 35749879 DOI: 10.1016/j.foodchem.2022.133519] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 06/13/2022] [Accepted: 06/16/2022] [Indexed: 11/04/2022]
Abstract
Poultry is one of the fastest growing industries due to advantages in land use, rapid production and advances in feed technology. The rising trend in the consumption of poultry meat over the last 50 years has also increased concerns about food safety. Campylobacter jejuniis the leading bacterial cause of gastroenteritis, the foremost cause of foodborne deaths. Despite significant progress in food safety methology, the genusCampylobacter remains a common foodborne pathogen in poultry. Increasing consumer demands for natural products require the discovery of new antimicrobials to ensure the safety of poultry meat. Recent studies have revealed that eugenol acts with antimicrobial activity on a wide variety of foodborne microorganisms. Eugenol is generally recognized as safe and is a promising preservative for the food industry. However, specific applications of eugenol need to be identified and validated to clarify the role of the food preservative in poultry meat safety.
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Affiliation(s)
- Murat Gürbüz
- Trakya University, Department of Nutrition and Dietetics, Edirne, Turkey.
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29
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Sundaramoorthy NS, Shankaran P, Gopalan V, Nagarajan S. New tools to mitigate drug resistance in Enterobacteriaceae - Escherichia coli and Klebsiella pneumoniae. Crit Rev Microbiol 2022:1-20. [PMID: 35649163 DOI: 10.1080/1040841x.2022.2080525] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Treatment to common bacterial infections are becoming ineffective of late, owing to the emergence and dissemination of antibiotic resistance globally. Escherichia coli and Klebsiella pneumoniae are the most notorious microorganisms and are among the critical priority pathogens listed by WHO in 2017. These pathogens are the predominant cause of sepsis, urinary tract infections (UTIs), pneumonia, meningitis and pyogenic liver abscess. Concern arises due to the resistance of bacteria to most of the beta lactam antibiotics like penicillin, cephalosporin, monobactams and carbapenems, even to the last resort antibiotics like colistin. Preventing influx by modulation of porins, extruding the antibiotics by overexpression of efflux pumps, mutations of drug targets/receptors, biofilm formation, altering the drug molecules and rendering them ineffective are few resistance mechanisms that are adapted by Enterobacteriaeceae upon exposure to antibiotics. The situation is exacerbated due to the process of horizontal gene transfer (HGT), wherein the genes encoding resistance mechanisms are transferred to the neighbouring bacteria through plasmids/phages/uptake of free DNA. Carbapenemases, other beta lactamases and mcr genes coding for colistin resistance are widely disseminated leading to limited/no therapeutic options against those infections. Development of new antibiotics can be viewed as a possible solution but it involves major investment, time and labour despite which, the bacteria can easily adapt to the new antibiotic and evolve resistance in a relatively short time. Targeting the resistance mechanisms can be one feasible alternative to tackle these multidrug resistant (MDR) pathogens. Removal of plasmid (plasmid curing) causing resistance, use of bacteriophages and bacteriotherapy can be other potential approaches to combat infections caused by MDR E. coli and K. pneumoniae. The present review discusses the efficacies of these therapies in mitigating these infections, which can be potentially used as an adjuvant therapy along with existing antibiotics.
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Affiliation(s)
- Niranjana Sri Sundaramoorthy
- Center for Research on Infectious Diseases, School of Chemical and Biotechnology, SASTRA deemed University, Thanjavur, Tamil Nadu, India
| | - Prakash Shankaran
- Center for Research on Infectious Diseases, School of Chemical and Biotechnology, SASTRA deemed University, Thanjavur, Tamil Nadu, India
| | - Vidhya Gopalan
- Department of Virology, Kings Institute of Preventative Medicine, Guindy, Chennai, Tamil Nadu, India
| | - Saisubramanian Nagarajan
- Center for Research on Infectious Diseases, School of Chemical and Biotechnology, SASTRA deemed University, Thanjavur, Tamil Nadu, India
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Antimicrobial food packaging integrating polysaccharide-based substrates with green antimicrobial agents: A sustainable path. Food Res Int 2022; 155:111096. [DOI: 10.1016/j.foodres.2022.111096] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 02/08/2023]
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Huang C, Tao S, Yuan J, Li X. Effect of sodium hypochlorite on biofilm of Klebsiella pneumoniae with different drug resistance. Am J Infect Control 2022; 50:922-928. [PMID: 34986390 DOI: 10.1016/j.ajic.2021.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 12/18/2021] [Accepted: 12/20/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Biofilm formation is a major factor in the resistance mechanism of Klebsiella pneumoniae. This study aimed to evaluate the effects of sodium hypochlorite on the biofilm of K. pneumoniae with different drug resistance. METHODS We collected 3 different types of K. pneumoniae respectively. The growth trend of biofilms of different drug-resistant K. pneumoniae was quantified by measuring the OD590 for 7 consecutive days using crystal violet staining. Scanning confocal fluorescence microscopy was used to observe biofilm morphology. RESULTS After adding sodium hypochlorite, there were significant differences between the OD590 value of the 200, 500, and 1,000 µg/mL groups and the positive control group (all P < .05) on the fifth day. Concentrations of 2,000 and 5,000 µg/mL sodium hypochlorite were added after the biofilm had matured. In the 5,000 µg/mL sodium hypochlorite group, the OD590 of K. pneumoniae biofilm in the 3 groups decreased significantly compared with the blank control group (all P < .05). CONCLUSIONS Sodium hypochlorite inhibited and cleared the biofilm of K. pneumoniae with different drug resistance, and the effect was enhanced with the increase of concentration in the range of bacteriostatic and bactericidal concentration.
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Affiliation(s)
- Chenlei Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China
| | - Shaoneng Tao
- Department of Nuclear Medicine, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China
| | - Jinlong Yuan
- Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China
| | - Xiaoning Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China.
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Bandyopadhyay D, Mukherjee M. Combination of bactericidal antibiotics and inhibitors of Universal stress protein A (UspA): a potential therapeutic alternative against multidrug resistant Escherichia coli in urinary tract infections. J Antibiot (Tokyo) 2022; 75:21-28. [PMID: 34526667 DOI: 10.1038/s41429-021-00477-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/04/2021] [Accepted: 08/16/2021] [Indexed: 11/09/2022]
Abstract
The increasing incidence of multidrug resistant uropathogenic E. coli (MDR-UPEC), the most common opportunistic pathogen in urinary tract infections (UTI) pose a global health problem and demands searching for alternative therapeutics. Antibiotics generate oxidative stress in bacteria which results in overexpression of the universal stress protein, UspA that helps in bacterial survival. An in silico study showed that two compounds ZINC000104153710, and ZINC000000217308 effectively bound bacterial UspA. This study aimed to determine the activity of ZINC000104153710, and ZINC000000217308 against bacterial UspA function in MDR-UPEC in vitro. Twenty-five highly MDR-UPEC were screened against ZINC000104153710, and, ZINC000000217308 either alone or in combination with the bactericidal antibiotics; ciprofloxacin (CIP), ceftazidime(CAZ), gentamicin(GEN) respectively by determining minimum inhibitory concentrations (MICs) using a broth microdilution assay. Additionally, the effect of ZINC000104153710, and ZINC000000217308 in the absence and presence of antibiotics on the bacteria was monitored by bacterial growth curve assays, ROS production, structure of the organism by scanning electron microscopy (FESEM) and quantitating UspA using a western blot technique. A 2-8 fold reduction in MIC values against ZINC000104153710, and ZINC000000217308 was observed against all 25 MDR-UPEC isolates in the presence of antibiotics with no alteration in intracellular ROS production. Discrete changes in cell morphology was evident in bacteria treated with ZINC000104153710 or ZINC000000217308 and antibiotics individually by FESEM compared with untreated control. Reduction in the level of UspA protein in bacteria treated with combination of ZINC000104153710 or ZINC000000217308 with individual antibiotics established their ability to inhibit UspA whose expression was elevated in presence of antibiotics alone. Therefore this study validated ZINC000104153710, and ZINC000000217308 as potent inhibitors of bacterial UspA function and indicated their potential as alternative therapeutics to combat the MDR-UPEC.
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Affiliation(s)
- Debojyoty Bandyopadhyay
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
| | - Mandira Mukherjee
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India.
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Ginting EV, Retnaningrum E, Widiasih DA. Antibacterial activity of clove ( Syzygium aromaticum) and cinnamon ( Cinnamomum burmannii) essential oil against extended-spectrum β-lactamase-producing bacteria. Vet World 2021; 14:2206-2211. [PMID: 34566340 PMCID: PMC8448639 DOI: 10.14202/vetworld.2021.2206-2211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/13/2021] [Indexed: 11/29/2022] Open
Abstract
Background and Aim: Extended-spectrum β-lactamase (ESBL) is an enzyme produced by the family of Enterobacteriaceae, especially Escherichia coli and Klebsiella pneumoniae, which can hydrolyzeβ-lactam antibiotics, such as penicillins, cephalosporins, cephamycin, and carbapenem. ESBL-producing bacteria are widely distributed from farms to slaughterhouses until food products originating from animals are available in the market, which plays an important role as a pathway for the exposure and transmission of ESBL-producing bacteria from food products of animal origin to humans. This study aimed to determine the antibacterial activity of Syzygium aromaticum (clove) and Cinnamomum verum (cinnamon) essential oils against strains resistant to ESBL-producing E. coli and K. pneumoniae isolates. Materials and Methods: The antibacterial activity of clove and cinnamon essential oils was tested against three strains of tested bacteria using the disk diffusion method. The minimum inhibitory concentration (MIC) of clove and cinnamon essential oils was determined using the broth microdilution method. The minimumbactericidal concentration (MBC) was determined using the MIC. Morphological changes on each tested bacteria were observed through scanning electron microscopy (SEM). Results: Both essential oils exhibited inhibitory effects toward all test organisms, indicated by inhibition zones around the disk. The MIC values of clove essential oil were 0.078% (v/v) for all tested bacteria, whereas the MICs of cinnamon essential oil ranged from 0.039% (v/v) to 0.156% (v/v) for all tested bacteria. MBC values of clove and cinnamon essential oils ranged from 0.078% (v/v) to 0.156% (v/v) for all tested bacteria. There were morphological changes in each tested bacterial cell that was observed through SEM. Each tested bacteria treated with clove and cinnamon essential oils showed shrinkage and cells lysis. Conclusion: It was concluded that clove and cinnamon essential oils have emerged as effective antibacterial agents by showing high antibacterial activity against ESBL-producing E. coli and K. pneumoniae isolates, as evidenced by the inhibition zone diameter and MIC value.
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Affiliation(s)
| | | | - Dyah Ayu Widiasih
- Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Richert A, Kalwasińska A, Brzezinska MS, Dąbrowska GB. Biodegradability of Novel Polylactide and Polycaprolactone Materials with Bacteriostatic Properties Due to Embedded Birch Tar in Different Environments. Int J Mol Sci 2021; 22:10228. [PMID: 34638570 PMCID: PMC8508706 DOI: 10.3390/ijms221910228] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/18/2021] [Accepted: 09/19/2021] [Indexed: 01/10/2023] Open
Abstract
The microbial biodegradation of new PLA and PCL materials containing birch tar (1-10% v/v) was investigated. Product of dry distillation of birch bark (Betula pendula Roth) was added to polymeric materials to obtain films with antimicrobial properties. The subject of the study was the course of enzymatic degradation of a biodegradable polymer with antibacterial properties. The results show that the type of the material, tar concentration, and the environment influenced the hydrolytic activity of potential biofilm degraders. In the presence of PCL films, the enzyme activities were higher (except for α-D-glucosidase) compared to PLA films. The highest concentration of birch tar (10% v/v) decreased the activity of hydrolases produced by microorganisms to the most significant extent; however, SEM analysis showed the presence of a biofilm even on plastics with the highest tar content. Based on the results of the biological oxygen demand (BOD), the new materials can be classified as biodegradable but, the biodegradation process was less efficient when compared to plastics without the addition of birch tar.
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Affiliation(s)
- Agnieszka Richert
- Department of Genetics, Faculty of Biology and Veterinary Science, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland;
| | - Agnieszka Kalwasińska
- Department of Environmental Microbiology, Faculty of Biology and Veterinary Science, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (A.K.); (M.S.B.)
| | - Maria Swiontek Brzezinska
- Department of Environmental Microbiology, Faculty of Biology and Veterinary Science, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland; (A.K.); (M.S.B.)
| | - Grażyna B. Dąbrowska
- Department of Genetics, Faculty of Biology and Veterinary Science, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland;
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Anticarcinogenic Effect of Chitosan Nanoparticles Containing Syzygium aromaticum Essential Oil or Eugenol Toward Breast and Skin Cancer Cell Lines. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00880-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Ulanowska M, Olas B. Biological Properties and Prospects for the Application of Eugenol-A Review. Int J Mol Sci 2021; 22:3671. [PMID: 33916044 PMCID: PMC8036490 DOI: 10.3390/ijms22073671] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/25/2021] [Accepted: 03/25/2021] [Indexed: 12/21/2022] Open
Abstract
Eugenol is a phenolic aromatic compound obtained mainly from clove oil. Due to its known antibacterial, antiviral, antifungal, anticancer, anti-inflammatory and antioxidant properties, it has long been used in various areas, such as cosmetology, medicine, and pharmacology. However, high concentrations can be toxic. A dose of 2.5 mg/kg body weight is regarded as safe. This paper reviews the current state of knowledge regarding the activities and application of eugenol and its derivatives and recent research of these compounds. This review is based on information concerning eugenol characteristics and recent research from articles in PubMed. Eugenol remains of great interest to researchers, since its multidirectional action allows it to be a potential component of drugs and other products with therapeutic potential against a range of diseases.
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Affiliation(s)
| | - Beata Olas
- Department of General Biochemistry, University of Lodz, Pomorska 141/3, 90-236 Lodz, Poland;
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Chemical composition, antibiofilm activities of Tunisian spices essential oils and combinatorial effect against Staphylococcus epidermidis biofilm. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110691] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Efficacy of chelerythrine against dual-species biofilms of Staphylococcus aureus and Staphylococcus lugdunensis. 3 Biotech 2020; 10:427. [PMID: 32968612 DOI: 10.1007/s13205-020-02401-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/17/2020] [Indexed: 12/12/2022] Open
Abstract
Staphylococcus aureus and Staphylococcus lugdunensis are often associated with pathogenic biofilms ranging from superficial mucosal to life-threatening systemic infections. Recent studies have reported that chelerythrine (CHE) displays antimicrobial activities against a few microorganisms, but its effects on dual-species biofilms of S. aureus and S. lugdunensis have never been reported. The purpose of this study was to investigate how dual-species biofilms of S. aureus and S. lugdunensis respond when challenged with CHE. Minimum inhibitory concentration (MIC) of CHE against planktic cells in dual-species culture was 8 μg/mL. CHE also suppressed dual-species biofilm formation at minimal biofilm inhibitory concentration (MBIC90, 4 μg/mL). Further, confocal laser scanning microscope (CLSM) using five fluorescent dyes revealed the dose-dependent reduction of the levels of three key biofilm matrix components, and reduced tolerance to gatifloxacin, of biofilms exposed to CHE. Moreover, CHE efficiently eradicated preformed dual-species biofilms at minimal biofilm eradication concentration (MBEC, 256 μg/mL). Hence, CHE has the potential to address biofilm infections of clinical course and other biofilm-related diseases caused by S. aureus and S. lugdunensis.
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Gorlenko CL, Kiselev HY, Budanova EV, Zamyatnin AA, Ikryannikova LN. Plant Secondary Metabolites in the Battle of Drugs and Drug-Resistant Bacteria: New Heroes or Worse Clones of Antibiotics? Antibiotics (Basel) 2020; 9:antibiotics9040170. [PMID: 32290036 PMCID: PMC7235868 DOI: 10.3390/antibiotics9040170] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/05/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
Infectious diseases that are caused by bacteria are an important cause of mortality and morbidity in all regions of the world. Bacterial drug resistance has grown in the last decades, but the rate of discovery of new antibiotics has steadily decreased. Therefore, the search for new effective antibacterial agents has become a top priority. The plant kingdom seems to be a deep well for searching for novel antimicrobial agents. This is due to the many attractive features of plants: they are readily available and cheap, extracts or compounds from plant sources often demonstrate high-level activity against pathogens, and they rarely have severe side effects. The huge variety of plant-derived compounds provides very diverse chemical structures that may supply both the novel mechanisms of antimicrobial action and provide us with new targets within the bacterial cell. In addition, the rapid development of modern biotechnologies opens up the way for obtaining bioactive compounds in environmentally friendly and low-toxic conditions. In this short review, we ask the question: do antibacterial agents derived from plants have a chance to become a panacea against infectious diseases in the "post-antibiotics era".
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Affiliation(s)
- Cyrill L. Gorlenko
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (C.L.G.); (H.Y.K.); (E.V.B.)
| | - Herman Yu. Kiselev
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (C.L.G.); (H.Y.K.); (E.V.B.)
| | - Elena V. Budanova
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (C.L.G.); (H.Y.K.); (E.V.B.)
| | - Andrey A. Zamyatnin
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (C.L.G.); (H.Y.K.); (E.V.B.)
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
- Correspondence: (A.A.Z.J.); (L.N.I.); Tel.: +7-495-622-98-43 (A.A.Z.J.); +7-910-472-01-49 (L.N.I.)
| | - Larisa N. Ikryannikova
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia; (C.L.G.); (H.Y.K.); (E.V.B.)
- Correspondence: (A.A.Z.J.); (L.N.I.); Tel.: +7-495-622-98-43 (A.A.Z.J.); +7-910-472-01-49 (L.N.I.)
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Integrated Transcriptomic and Un-Targeted Metabolomics Analysis Reveals Mulberry Fruit ( Morus atropurpurea) in Response to Sclerotiniose Pathogen Ciboria shiraiana Infection. Int J Mol Sci 2020; 21:ijms21051789. [PMID: 32150966 PMCID: PMC7084804 DOI: 10.3390/ijms21051789] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/29/2020] [Accepted: 03/04/2020] [Indexed: 02/08/2023] Open
Abstract
Mulberry sclerotiniose caused by Ciboria shiraiana is a devastating disease of mulberry (Morus alba L.) fruit in Northwest China. At present, no disease-resistant varieties are used in production, as the molecular mechanisms of this disease are not well understood. In this study, to explore new prevention methods and provide direction for molecular breeding, transcriptomic sequencing and un-targeted metabolomics were performed on healthy (CK), early-stage diseased (HB1), and middle-stage diseased (HB2) mulberry fruits. Functional annotation, gene ontology, a Kyoto encyclopedia of genes and genomes (KEGG) analysis, and a Mapman analysis of the differentially expressed genes revealed differential regulation of genes related to plant hormone signal transduction, transcription factors, and phenylpropanoid biosynthesis. A correspondence between the transcript pattern and metabolite profile was observed in the phenylpropanoid biosynthesis pathway. It should be noted that the log2 ratio of eugenol (isoeugenol) in HB1 and HB2 are 85 times and 23 times higher than CK, respectively. Our study shows that phenylpropanoid biosynthesis may play an essential role in response to sclerotiniose pathogen infection and eugenol(isoeugenol) enrichment in mulberry fruit, which may provide a novel method for mulberry sclerotiniose control.
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Susilo B, Lestari W. H. M, Rohim A. Impact of using low-cost packaging material of commercial herbal oil on its antibacterial compounds. ALL LIFE 2020. [DOI: 10.1080/26895293.2020.1817800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Bambang Susilo
- Department of Agricultural Engineering, Faculty of Agricultural Technology, Universitas Brawijaya, Malang–East Java, Indonesia
| | - Midia Lestari W. H.
- Central Laboratory of Life Science, Universitas Brawijaya, Malang-East Java, Indonesia
| | - Abd. Rohim
- Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Brawijaya, Malang–East Java, Indonesia
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