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Kwun MS, Lee DG. Bacterial Apoptosis-Like Death through Accumulation of Reactive Oxygen Species by Quercetin in Escherichia coli. J Microbiol Biotechnol 2024; 34:1395-1400. [PMID: 38934783 PMCID: PMC11294654 DOI: 10.4014/jmb.2403.03057] [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: 03/28/2024] [Revised: 05/14/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024]
Abstract
The antimicrobial activity of the natural compounds from plant and food have well discovered since the interest on the beneficial effect of the natural compounds was risen. Quercetin, a flavonoid derived from vegetables, including onions, red leaf lettuces and cherries has been studied for diverse biological characteristics as anti-cancer and anti-microbial activities. The aim of current study is to investigate the specific antibacterial modes of action of quercetin against Escherichia coli. Quercetin decreased the E. coli cell viability and induced the severe damages (oxidative stress, DNA fragmentation) leading to cell death. Reactive oxygen species (ROS) generation was observed during the process, which we confirmed that oxidative stress was the key action of antibacterial activity of quercetin exerting its influence potently. Based on the results of Annexin V and Caspace FITC-VAD-FMK assay, the oxidative damage in E. coli has led to the bacterial apoptosis-like death in E. coli. To sum up, the contribution of ROS generation exerts crucial impact in antibacterial activity of quercetin.
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Affiliation(s)
- Min Seok Kwun
- School of Life Sciences, BK 21 FOUR KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Dong Gun Lee
- School of Life Sciences, BK 21 FOUR KNU Creative BioResearch Group, College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
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2
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Kharkova A, Perchikov R, Kurbanalieva S, Osina K, Popova N, Machulin A, Kamanina O, Saverina E, Saltanov I, Melenkov S, Butusov D, Arlyapov V. Targeted Formation of Biofilms on the Surface of Graphite Electrodes as an Effective Approach to the Development of Biosensors for Early Warning Systems. BIOSENSORS 2024; 14:239. [PMID: 38785713 PMCID: PMC11118945 DOI: 10.3390/bios14050239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024]
Abstract
Biofilms based on bacteria Pseudomonas veronii (Ps. veronii) and Escherichia coli (E. coli) and yeast Saccharomyces cerevisiae (S. cerevisiae) were used for novel biosensor creation for rapid biochemical oxygen demand (BOD) monitoring. Based on the electrochemical measurement results, it was shown that the endogenous mediator in the matrix of E. coli and Ps. veronii biofilms and ferrocene form a two-mediator system that improves electron transport in the system. Biofilms based on Ps. veronii and E. coli had a high biotechnological potential for BOD assessment; bioreceptors based on such biofilms had high sensitivity (the lower limits of detectable BOD5 concentrations were 0.61 (Ps. veronii) and 0.87 (E. coli) mg/dm3) and high efficiency of analysis (a measurement time 5-10 min). The maximum biosensor response based on bacterial biofilms has been observed in the pH range of 6.6-7.2. The greatest protective effect was found for biofilms based on E. coli, which has high long-term stability (151 days for Ps. veronii and 163 days for E. coli). The results of the BOD5 analysis of water samples obtained using the developed biosensors had a high correlation with the results of the standard 5-day method (R2 = 0.9820, number of tested samples is 10 for Ps. veronii, and R2 = 0.9862, number of tested samples is 10 for E. coli). Thus, biosensors based on Ps. veronii biofilms and E. coli biofilms could be a novel analytical system to give early warnings of pollution.
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Affiliation(s)
- Anna Kharkova
- Federal State Budgetary Educational Institution of Higher Education, Tula State University, 300012 Tula, Russia; (A.K.); (R.P.); (K.O.); (O.K.)
| | - Roman Perchikov
- Federal State Budgetary Educational Institution of Higher Education, Tula State University, 300012 Tula, Russia; (A.K.); (R.P.); (K.O.); (O.K.)
| | - Saniyat Kurbanalieva
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Russia; (S.K.); (E.S.)
| | - Kristina Osina
- Federal State Budgetary Educational Institution of Higher Education, Tula State University, 300012 Tula, Russia; (A.K.); (R.P.); (K.O.); (O.K.)
| | - Nadezhda Popova
- Federal State Budgetary Institution of Science Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, 119071 Moscow, Russia;
| | - Andrey Machulin
- Institute of Biochemistry and Physiology of Microorganisms of the Russian Academy of Sciences—A Separate Subdivision of the FRC Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, 142290 Pushchino, Russia;
| | - Olga Kamanina
- Federal State Budgetary Educational Institution of Higher Education, Tula State University, 300012 Tula, Russia; (A.K.); (R.P.); (K.O.); (O.K.)
| | - Evgeniya Saverina
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Russia; (S.K.); (E.S.)
| | - Ivan Saltanov
- Limited Liability Company “INNOBIOSYSTEMS”, 117342 Moscow, Russia; (I.S.); (S.M.)
| | - Sergey Melenkov
- Limited Liability Company “INNOBIOSYSTEMS”, 117342 Moscow, Russia; (I.S.); (S.M.)
| | - Denis Butusov
- Computer-Aided Design Department, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia;
| | - Vyacheslav Arlyapov
- Federal State Budgetary Educational Institution of Higher Education, Tula State University, 300012 Tula, Russia; (A.K.); (R.P.); (K.O.); (O.K.)
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3
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Er-Rahmani S, Errabiti B, Matencio A, Trotta F, Latrache H, Koraichi SI, Elabed S. Plant-derived bioactive compounds for the inhibition of biofilm formation: a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:34859-34880. [PMID: 38744766 DOI: 10.1007/s11356-024-33532-2] [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: 05/21/2023] [Accepted: 04/27/2024] [Indexed: 05/16/2024]
Abstract
Biofilm formation is a widespread phenomenon that impacts different fields, including the food industry, agriculture, health care and the environment. Accordingly, there is a serious need for new methods of managing the problem of biofilm formation. Natural products have historically been a rich source of varied compounds with a wide variety of biological functions, including antibiofilm agents. In this review, we critically highlight and discuss the recent progress in understanding the antibiofilm effects of several bioactive compounds isolated from different plants, and in elucidating the underlying mechanisms of action and the factors influencing their adhesion. The literature shows that bioactive compounds have promising antibiofilm potential against both Gram-negative and Gram-positive bacterial and fungal strains, via several mechanisms of action, such as suppressing the formation of the polymer matrix, limiting O2 consumption, inhibiting microbial DNA replication, decreasing hydrophobicity of cell surfaces and blocking the quorum sensing network. This antibiofilm activity is influenced by several environmental factors, such as nutritional cues, pH values, O2 availability and temperature. This review demonstrates that several bioactive compounds could mitigate the problem of biofilm production. However, toxicological assessment and pharmacokinetic investigations of these molecules are strongly required to validate their safety.
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Affiliation(s)
- Sara Er-Rahmani
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università Di Torino, 10125, Turin, Italy
| | - Badr Errabiti
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco
| | - Adrián Matencio
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università Di Torino, 10125, Turin, Italy
| | - Francesco Trotta
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università Di Torino, 10125, Turin, Italy
| | - Hassan Latrache
- Laboratory of Bioprocesses and Bio-Interfaces, Faculty of Science and Technology, Sultan Moulay Slimane University, 23000, Beni Mellal, Morocco
| | - Saad Ibnsouda Koraichi
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco
| | - Soumya Elabed
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco.
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4
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Higuera-Ciapara I, Benitez-Vindiola M, Figueroa-Yañez LJ, Martínez-Benavidez E. Polyphenols and CRISPR as Quorum Quenching Agents in Antibiotic-Resistant Foodborne Human Pathogens ( Salmonella Typhimurium, Campylobacter jejuni and Escherichia coli 0157:H7). Foods 2024; 13:584. [PMID: 38397561 PMCID: PMC10888066 DOI: 10.3390/foods13040584] [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: 10/04/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 02/25/2024] Open
Abstract
Antibiotic resistance in foodborne pathogens is an increasing threat to global human health. Among the most prevalent antibiotic-resistant bacteria are Salmonella enterica serovar Typhimurium, Campylobacter jejuni and E. coli 0157:H7. Control of these and other pathogens requires innovative approaches, i.e., discovering new molecules that will inactivate them, or render them less virulent without inducing resistance. Recently, several polyphenol molecules have been shown to possess such characteristics. Also, the use of CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) approaches has recently been proposed for such purpose. This review summarizes the main findings regarding the application of both approaches to control the above-mentioned foodborne pathogens by relying on Quorum Sensing interference (Quorum Quenching) mechanisms and highlights the avenues needed for further research.
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Affiliation(s)
| | - Marieva Benitez-Vindiola
- Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), México City 04510, Mexico;
| | - Luis J. Figueroa-Yañez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Guadalajara 44270, Jalisco, Mexico; (L.J.F.-Y.); (E.M.-B.)
| | - Evelin Martínez-Benavidez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Guadalajara 44270, Jalisco, Mexico; (L.J.F.-Y.); (E.M.-B.)
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5
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Higuera-Ciapara I, Benitez-Vindiola M, Figueroa-Yañez LJ, Martínez-Benavidez E. Polyphenols and CRISPR as Quorum Quenching Agents in Antibiotic-Resistant Foodborne Human Pathogens (Salmonella Typhimurium, Campylobacter jejuni and Escherichia coli 0157:H7). Foods 2024; 13:584. [DOI: https:/doi.org/10.3390/foods13040584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024] Open
Abstract
Antibiotic resistance in foodborne pathogens is an increasing threat to global human health. Among the most prevalent antibiotic-resistant bacteria are Salmonella enterica serovar Typhimurium, Campylobacter jejuni and E. coli 0157:H7. Control of these and other pathogens requires innovative approaches, i.e., discovering new molecules that will inactivate them, or render them less virulent without inducing resistance. Recently, several polyphenol molecules have been shown to possess such characteristics. Also, the use of CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) approaches has recently been proposed for such purpose. This review summarizes the main findings regarding the application of both approaches to control the above-mentioned foodborne pathogens by relying on Quorum Sensing interference (Quorum Quenching) mechanisms and highlights the avenues needed for further research.
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Affiliation(s)
| | | | - Luis J. Figueroa-Yañez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Guadalajara 44270, Jalisco, Mexico
| | - Evelin Martínez-Benavidez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Guadalajara 44270, Jalisco, Mexico
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6
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Damyanova T, Dimitrova PD, Borisova D, Topouzova-Hristova T, Haladjova E, Paunova-Krasteva T. An Overview of Biofilm-Associated Infections and the Role of Phytochemicals and Nanomaterials in Their Control and Prevention. Pharmaceutics 2024; 16:162. [PMID: 38399223 PMCID: PMC10892570 DOI: 10.3390/pharmaceutics16020162] [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: 12/01/2023] [Revised: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
Biofilm formation is considered one of the primary virulence mechanisms in Gram-positive and Gram-negative pathogenic species, particularly those responsible for chronic infections and promoting bacterial survival within the host. In recent years, there has been a growing interest in discovering new compounds capable of inhibiting biofilm formation. This is considered a promising antivirulence strategy that could potentially overcome antibiotic resistance issues. Effective antibiofilm agents should possess distinctive properties. They should be structurally unique, enable easy entry into cells, influence quorum sensing signaling, and synergize with other antibacterial agents. Many of these properties are found in both natural systems that are isolated from plants and in synthetic systems like nanoparticles and nanocomposites. In this review, we discuss the clinical nature of biofilm-associated infections and some of the mechanisms associated with their antibiotic tolerance. We focus on the advantages and efficacy of various natural and synthetic compounds as a new therapeutic approach to control bacterial biofilms and address multidrug resistance in bacteria.
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Affiliation(s)
- Tsvetozara Damyanova
- Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 26, 1113 Sofia, Bulgaria; (T.D.); (P.D.D.); (D.B.)
| | - Petya D. Dimitrova
- Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 26, 1113 Sofia, Bulgaria; (T.D.); (P.D.D.); (D.B.)
| | - Dayana Borisova
- Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 26, 1113 Sofia, Bulgaria; (T.D.); (P.D.D.); (D.B.)
| | - Tanya Topouzova-Hristova
- Faculty of Biology, Sofia University “St. K. Ohridski”, 8 D. Tsankov Blvd., 1164 Sofia, Bulgaria
| | - Emi Haladjova
- Institute of Polymers, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 103-A, 1113 Sofia, Bulgaria;
| | - Tsvetelina Paunova-Krasteva
- Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev St. bl. 26, 1113 Sofia, Bulgaria; (T.D.); (P.D.D.); (D.B.)
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7
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Bai M, Dai J, Li C, Cui H, Lin L. Antibacterial and antibiofilm performance of low-frequency ultrasound against Escherichia coli O157:H7 and its application in fresh produce. Int J Food Microbiol 2023; 400:110266. [PMID: 37263173 DOI: 10.1016/j.ijfoodmicro.2023.110266] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 05/02/2023] [Accepted: 05/25/2023] [Indexed: 06/03/2023]
Abstract
Ultrasound technology has been focused on due to its unique advantages in biofilm removal compared with traditional antibacterial methods. Herein, the anti-biofilm properties of low-frequency ultrasound (LFUS) were studied against Enterohemorrhagic Escherichia coli O157: H7 (E. coli O157:H7). After ultrasonication (20 kHz, 300 W) for 5 min, the removal rate of biofilm from polystyrene sheets reached up to 99.999 %. However, the bacterial cells could not be inactivated completely even extending the duration of ultrasonic irradiation to 30 min. Fortunately, this study indicated that LFUS could efficiently weaken the metabolic capacity and biofilm-forming ability of bacterial cells separated from biofilm. It could be associated with the removal of cell surface appendages and damage to cell membrane induced by mechanical vibration and acoustic cavitation. Besides, the genetic analysis proved that the transcription level of genes involved in curli formation was significantly down-regulated during ultrasonic irradiation, thus impeding the process of irreversible adhesion and cells aggregation. Finally, the actual application effect of LFUS was also evaluated in different fresh produces model. The results of this study would provide a theoretical basis for the further application of ultrasound in the food preservation.
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Affiliation(s)
- Mei Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jinming Dai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China
| | - Haiying Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Lin Lin
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410007, China.
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8
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Xue L, Luo X, Xing JH, Wang D, Zhang DX. Isolation and pathogenicity evaluation of Escherichia coli O157:H7 from common carp, Cyprinus carpio. Microb Pathog 2023; 182:106250. [PMID: 37454944 DOI: 10.1016/j.micpath.2023.106250] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/08/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023]
Abstract
Escherichia coli O157:H7 is the primary serotype of enterohaemorrhagic E. coli (EHEC), which can cause diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome. It is considered as a major health concern due to it being a zoonotic disease that is transmitted through food. In this study, a pathogenic bacterium was isolated from infected carp, which identified as E. coli O157:H7 named X21 through genetic sequencing, phylogenetic analysis, physiological and biochemical tests. In the experiment, crucian carp was used as a model to study the pathogenicity of the isolate, the pathological histological observations and cytokines expression of fish tissues were determined after bacterial challenge. The results showed that severe pathological damage observed in the liver, spleen, headkidney of fish infected with isolate X21. Besides, we found that accumulation of IgT+ B cells in the lamina propria of intestine, and up-regulation of SUCH-r, IL-1β, IL-10, IL-11, MyD88, and TNF-α gene in various tissues. After challenged, the survivability of crucian carp infected with isolate X21 stands at a mere 14.27%. To our knowledge, this is the first report that E. coli O157:H7 infected the freshwater fish C. carpio, which indicates that this bacterium is a potential threat to public health and freshwater fish aquaculture.
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Affiliation(s)
- Ligang Xue
- Jilin Agricultural Science and Technology University, 1 Xuefu Road, Zuojia Town, Changyi District, Jilin, 132109, China
| | - Xia Luo
- Jilin Agricultural Science and Technology University, 1 Xuefu Road, Zuojia Town, Changyi District, Jilin, 132109, China
| | - Jun-Hong Xing
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Dan Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China
| | - Dong-Xing Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130118, China.
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Rohatgi A, Gupta P. Benzoic acid derivatives as potent antibiofilm agents against Klebsiella pneumoniae biofilm. J Biosci Bioeng 2023; 136:190-197. [PMID: 37479559 DOI: 10.1016/j.jbiosc.2023.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 07/23/2023]
Abstract
Klebsiella pneumoniae is responsible for a significant proportion of human urinary tract infections, and its biofilm is a major virulence. One potential approach to controlling biofilm-associated infections is targeting the adhesin MrkD1P to disrupt biofilm formation. We employed Schrodinger's Maestro tool with the OPLS 2005 force field to dock compounds with the target protein. Two benzoic acid derivatives, 3-hydroxy benzoic acid and 2,5-dihydroxybenzoic acid, had strong binding free energies (-55.57 and -18.68 kcal/mol) and were the most potent compounds. The in-vitro experiments were conducted to validate the in-silico results. The results showed that both compounds effectively inhibited biofilm formation at low concentrations (4 and 8 mg/mL, respectively) and had antibiofilm activity, restricting cell attachment. Both compounds demonstrated a strong biofilm inhibitory effect, with 97% and 89% reduction in biofilm by 3-hydroxy benzoic acid and 2,5-dihydroxybenzoic acid, respectively. These findings suggest that natural compounds can be a potential source of new drugs to combat biofilm-associated infections. The study highlights the potential of targeting adhesin MrkD1P as an effective approach to controlling biofilm-associated infections caused by K. pneumoniae. The results may have implications for the development of new therapies for biofilm-associated infections and pave the way for future research in this area.
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Affiliation(s)
- Anuj Rohatgi
- Department of Biotechnology, National Institute of Technology, Raipur 492010, India
| | - Pratima Gupta
- Department of Biotechnology, National Institute of Technology, Raipur 492010, India.
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10
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Chen P, Liu Y, Li C, Hua S, Sun C, Huang L. Antibacterial mechanism of vanillin against Escherichia coli O157: H7. Heliyon 2023; 9:e19280. [PMID: 37662745 PMCID: PMC10474422 DOI: 10.1016/j.heliyon.2023.e19280] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 09/05/2023] Open
Abstract
Vanillin, a plant-derived antimicrobial volatile substance, has potential microbial control applications in the food industry. However, the effect of vanillin on the food-borne pathogen Escherichia coli (E. coli) O157:H7 has not been well studied. This study aims to explore the antibacterial mechanism of vanillin against E. coli O157:H7. The minimum inhibitory concentration (MIC) and antibacterial effect of vanillin were determined by microdilution. Scanning electron microscopy (SEM) was used to observe the damage of vanillin to the cell membrane, while cell membrane potential and the leakage of nucleic acid protein were measured to explore the effect of vanillin on the membrane system. Confocal laser scanning and intracellular adenosine triphosphate (ATP) concentration determination were utilized to investigate the effects of vanillin on the energy, life, and death of E. coli. Finally, transcriptome sequencing was conducted to investigate the gene expression differences induced by vanillin treatment. The results showed that vanillin treatment effectively controlled E. coli O157:H7 with an MIC of 2 mg/mL. After treatment, damage to the membrane system, depolarization of the membrane, and leakage of nucleic acid and protein were observed. Meanwhile, vanillin treatment caused decreased ATP content and cell death. Transcriptome analysis showed that vanillin treatment significantly affected the expression of genes involved in cell membrane formation, tricarboxylic acid (TCA) cycling pathway, and oxidative phosphorylation pathway in E. coli O157:H7. In conclusion, membrane damage and energy metabolism disruption are important mechanisms of vanillin's inhibitory effect on E. coli O157:H7. This study provides new insights into the molecular reaction mechanism of vanillin against E. coli O157:H7, highlighting its potential as an antibacterial substance for preventing E. coli contamination in the food industry.
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Affiliation(s)
- Peiyao Chen
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yinxin Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Cheng Li
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Shuhao Hua
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Cui Sun
- Laboratory of Fruit Quality Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, PR China
| | - Lingxia Huang
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
- Key Laboratory of Silkworm and Bee Resource Utilization and Innovation Zhejiang University, Hangzhou 310058, PR China
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11
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Preliminary Study of the Bactericide Properties of Biodegradable Polymers (PLA) with Metal Additives for 3D Printing Applications. Bioengineering (Basel) 2023; 10:bioengineering10030297. [PMID: 36978689 PMCID: PMC10045209 DOI: 10.3390/bioengineering10030297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/17/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
Plastic is a highly used material in various sectors. Due to its plentiful availability in the environment, microorganism surface contamination is a risk. The aim of this work is to achieve bactericidal capacity in plastics that reduces the microorganism’s colonization risk and, consequently, reduces the chances of having an infection with E. coli and Listeria monocytogenes bacteria. Using polylactic acid (PLA) as the polymeric matrix, mixtures in concentrations of metal additive of ions of silver (Ag) R148 and S254 in 1% and 2% have been studied and manufactured. The materials are developed on an industrial scale through a process that proceeds as follows: (I) a mixture of polymer and additive in a double-screw compounder to obtain the compound in different concentrations, (II) the manufacture of filaments with a single-screw extruder, (III) 3D printing parts. Therefore, materials are evaluated in the form of powder, pellets and printed pieces to ensure their antibacterial effectiveness throughout the manufacturing process. The results of the research show antibacterial effectiveness for E. coli and Listeria monocytogenes of metal additives and polymeric compounds for all manufacturing phases on an industrial scale, with the effectiveness for additive R148 predominating at a concentration of 2%, demonstrating its microbial efficacy on surfaces with potential application in medicine.
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12
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Choudhary MI, Römling U, Nadeem F, Bilal HM, Zafar M, Jahan H, ur-Rahman A. Innovative Strategies to Overcome Antimicrobial Resistance and Tolerance. Microorganisms 2022; 11:microorganisms11010016. [PMID: 36677308 PMCID: PMC9863313 DOI: 10.3390/microorganisms11010016] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Antimicrobial resistance and tolerance are natural phenomena that arose due to evolutionary adaptation of microorganisms against various xenobiotic agents. These adaptation mechanisms make the current treatment options challenging as it is increasingly difficult to treat a broad range of infections, associated biofilm formation, intracellular and host adapted microbes, as well as persister cells and microbes in protected niches. Therefore, novel strategies are needed to identify the most promising drug targets to overcome the existing hurdles in the treatment of infectious diseases. Furthermore, discovery of novel drug candidates is also much needed, as few novel antimicrobial drugs have been introduced in the last two decades. In this review, we focus on the strategies that may help in the development of innovative small molecules which can interfere with microbial resistance mechanisms. We also highlight the recent advances in optimization of growth media which mimic host conditions and genome scale molecular analyses of microbial response against antimicrobial agents. Furthermore, we discuss the identification of antibiofilm molecules and their mechanisms of action in the light of the distinct physiology and metabolism of biofilm cells. This review thus provides the most recent advances in host mimicking growth media for effective drug discovery and development of antimicrobial and antibiofilm agents.
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Affiliation(s)
- M. Iqbal Choudhary
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Ute Römling
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 65 Stockholm, Sweden
- Correspondence: (U.R.); (H.J.); Tel.: +46-8-5248-7319 (U.R.); +92-21-111-232-292 (ext. 301) (H.J.)
| | - Faiza Nadeem
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Hafiz Muhammad Bilal
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Munirah Zafar
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
| | - Humera Jahan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
- Correspondence: (U.R.); (H.J.); Tel.: +46-8-5248-7319 (U.R.); +92-21-111-232-292 (ext. 301) (H.J.)
| | - Atta ur-Rahman
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
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Exopolysaccharide from Lactobacillus casei NA-2 attenuates Escherichia coli O157:H7 surface adhesion via modulation of membrane surface properties and adhesion-related gene expression. Microb Pathog 2022; 173:105863. [PMID: 36332791 DOI: 10.1016/j.micpath.2022.105863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022]
Abstract
The natural compound, exopolysaccharide from Lactobacillus casei NA-2 (EPS-cn2), has been shown to inhibit biofilm formation by Escherichia coli O157:H7. Although bacterial adhesion to substrate surfaces is a primary, indispensable step in this process, the mechanisms by which EPS-cn2 can block E. coli O157:H7 adhesion to biotic or abiotic surfaces remain unclear. In this study, investigation of E. coli O157:H7 response to EPS-cn2 revealed that 1 mg/mL EPS-cn2 can decrease adherence to polystyrene and confluent Caco-2 cell surfaces to 49.0% (P<0.0001) and 57.0% (P<0.01) of that in untreated E. coli O157:H7, respectively. Moreover, EPS-cn2 significantly reduced outer membrane hydrophobicity by 49.0% and decreased the electronegativity of the membrane surface charge by as much as 1.57 mV (P<0.05) compared to untreated cells. High throughput RNA sequencing indicated that genes responsible for adhesion through extracellular matrix secretion, such as poly-N-acetyl-glucosamine (PNAG) biosynthesis, locus of enterocyte effacement (LEE) proteins and outer membrane protein (OmpT) were all down-regulated in response to EPS-cn2, while chemotaxis and motility-related flagellar assembly genes were differentially up-regulated, suggesting that the EPS-cn2 may serve as an extracellular signal to attenuate adhesion-related gene expression and alter bacterial surface properties in E. coli O157:H7. These findings support the further development of EPS-cn2 for pathogenic biofilm management in clinical and industrial settings, and suggests the further targeting of adhesion-related genes to limit the persistence of this highly pathogenic strain in sensitive environments.
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14
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Jaroš P, Timkina E, Michailidu J, Maršík D, Kulišová M, Kolouchová I, Demnerová K. Boswellic Acids as Effective Antibacterial Antibiofilm Agents. Molecules 2022; 27:3795. [PMID: 35744925 PMCID: PMC9228269 DOI: 10.3390/molecules27123795] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 11/25/2022] Open
Abstract
Boswellic acids are biologically active pentacyclic terpenoid compounds derived from Boswellia sp. plants. Extracts containing these acids have a number of positive effects on human health, especially in the treatment of inflammation, arthritis, or asthma. With increasing resistance to common antibiotics, boswellic acid-containing extracts could serve as an alternative or work in synergy with commonly available preparations. This study aims to determine the effect of boswellic acids on suspension cells and biofilms of Staphylococcus epidermidis, Enterococcus faecalis, and Escherichia coli. The antimicrobial and antibiofilm effect found was compared with commonly available antibiotics to control these undesirable microorganisms. The synergistic effect of boswellic acids and common antibiotics on the growth of these microorganisms was also determined. All tested microorganisms showed a positive additive effect of antibiotics and boswellic acid extract. The most significant effect was found in Enterococcus faecalis ATCC 29212 in a combination of 0.2 × MIC80 erythromycin (0.2 mg/L) and 0.8 × MIC80 boswellic acid extract (16 mg/L).
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Affiliation(s)
- Petr Jaroš
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, 16628 Prague, Czech Republic; (P.J.); (K.D.)
| | - Elizaveta Timkina
- Department of Biotechnology, University of Chemistry and Technology, 16628 Prague, Czech Republic; (J.M.); (D.M.); (M.K.); (I.K.)
| | - Jana Michailidu
- Department of Biotechnology, University of Chemistry and Technology, 16628 Prague, Czech Republic; (J.M.); (D.M.); (M.K.); (I.K.)
| | - Dominik Maršík
- Department of Biotechnology, University of Chemistry and Technology, 16628 Prague, Czech Republic; (J.M.); (D.M.); (M.K.); (I.K.)
| | - Markéta Kulišová
- Department of Biotechnology, University of Chemistry and Technology, 16628 Prague, Czech Republic; (J.M.); (D.M.); (M.K.); (I.K.)
| | - Irena Kolouchová
- Department of Biotechnology, University of Chemistry and Technology, 16628 Prague, Czech Republic; (J.M.); (D.M.); (M.K.); (I.K.)
| | - Kateřina Demnerová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology, 16628 Prague, Czech Republic; (P.J.); (K.D.)
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15
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CHARACTERISTICS OF WOUND INFECTIONS AND METHODS OF THEIR TREATMENT USING PREPARATIONS OF BIOLOGICAL ORIGIN. BIOTECHNOLOGIA ACTA 2022. [DOI: 10.15407/biotech15.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Surgical wound infections are the most common patients’ complications in the postoperative period. In the modern clinic, they worsen the disease prognosis and remain the most important and acute health problem in all countries of the world. The aim of the work was to analyze current scientific data on the peculiarities of the pathogenesis of wound infections and types of their pathogens, as well as drugs of biological origin in the treatment of wound infections. The paper discusses in detail the problem of infection of wound injuries during surgery and domestic injuries of various kinds. The main pathogens of wound infections are considered. Specific pathogenicity factors for bacteria of the genera Staphylococcus, Pseudomonas, Enterobacteriaceae were analyzed. Based on the analysis of literature sources, a list of drugs of biotechnological origin that can be effectively used in combination therapy for the treatment and prevention of wound infections was determined. Conclusions. The result is the identification of those mechanisms of pathogenesis of wound infections that determine the effectiveness of the use of drugs of biological origin in this pathology treatment.
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16
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Parmanik A, Das S, Kar B, Bose A, Dwivedi GR, Pandey MM. Current Treatment Strategies Against Multidrug-Resistant Bacteria: A Review. Curr Microbiol 2022; 79:388. [PMID: 36329256 PMCID: PMC9633024 DOI: 10.1007/s00284-022-03061-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022]
Abstract
There are several bacteria called superbugs that are resistant to multiple antibiotics which can be life threatening specially for critically ill and hospitalized patients. This article provides up-to-date treatment strategies employed against some major superbugs, like methicillin-resistant Staphylococcus aureus, carbapenem-resistant Enterobacteriaceae, vancomycin-resistant Enterococcus, multidrug-resistant Pseudomonas aeruginosa, and multidrug-resistant Escherichia coli. The pathogen-directed therapeutics decrease the toxicity of bacteria by altering their virulence factors by specific processes. On the other hand, the host-directed therapeutics limits these superbugs by modulating immune cells, enhancing host cell functions, and modifying disease pathology. Several new antibiotics against the global priority superbugs are coming to the market or are in the clinical development phase. Medicinal plants possessing potent secondary metabolites can play a key role in the treatment against these superbugs. Nanotechnology has also emerged as a promising option for combatting them. There is urgent need to continuously figure out the best possible treatment strategy against these superbugs as resistance can also be developed against the new and upcoming antibiotics in future. Rational use of antibiotics and maintenance of proper hygiene must be practiced among patients.
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Affiliation(s)
- Ankita Parmanik
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Soumyajit Das
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Biswakanth Kar
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Anindya Bose
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Gaurav Raj Dwivedi
- grid.464904.b0000 0004 0506 3705ICMR-Regional Medical Research Centre, Gorakhpur, Uttar Pradesh 273013 India
| | - Murali Monohar Pandey
- grid.418391.60000 0001 1015 3164Birla Institute of Technology and Science (BITS), Pilani, Rajasthan 333031 India
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