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Jain PM, Nellikka A, Kammara R. Understanding bacteriocin heterologous expression: A review. Int J Biol Macromol 2024; 277:133916. [PMID: 39033897 DOI: 10.1016/j.ijbiomac.2024.133916] [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: 11/29/2023] [Revised: 07/12/2024] [Accepted: 07/14/2024] [Indexed: 07/23/2024]
Abstract
Bacteriocins are a diverse group of ribosomally synthesised antimicrobial peptides/proteins that play an important role in self-defence. They are widely used as bio-preservatives and effective substitutes for disease eradication. They can be used in conjunction with or as an alternative to antibiotics to minimize the risk of resistance development. There are remarkably few reports indicating resistance to bacteriocins. Although there are many research reports that emphasise heterologous expression of bacteriocin, there are no convincing reports on the significant role that intrinsic and extrinsic factors play in overexpression. A coordinated and cooperative expression system works in concert with multiple genetic elements encoding native proteins, immunoproteins, exporters, transporters and enzymes involved in the post-translational modification of bacteriocins. The simplest way could be to utilise the existing E. coli expression system, which is conventional, widely used for heterologous expression and has been further extended for bacteriocin expression. In this article, we will review the intrinsic and extrinsic factors, advantages, disadvantages and major problems associated with bacteriocin overexpression in E. coli. Finally, we recommend the most effective strategies as well as numerous bacteriocin expression systems from E. coli, Lactococcus, Kluveromyces lactis, Saccharomyces cerevisiae and Pichia pastoris for their suitability for successful overexpression.
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Affiliation(s)
- Priyanshi M Jain
- Department of Microbiology and Fermentation Technology, CSIR-CFTRI, AcSIR, Mysore, India
| | - Anagha Nellikka
- Department of Microbiology and Fermentation Technology, CSIR-CFTRI, AcSIR, Mysore, India
| | - Rajagopal Kammara
- Department of Microbiology and Fermentation Technology, CSIR-CFTRI, AcSIR, Mysore, India.
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Bisht V, Das B, Navani NK. Bacteriocins sourced from traditional fermented foods for ensuring food safety: the microbial guards. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 39092901 DOI: 10.1002/jsfa.13783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/15/2024] [Accepted: 06/27/2024] [Indexed: 08/04/2024]
Abstract
Concerns about food safety have consistently driven the exploration of potent antimicrobials with probiotic origins. Identification of probiotic-derived bacteriocins as robust alternatives to antibiotics has gained traction following the COVID-19 pandemic. Additionally, the global market is witnessing an increasing preference for minimally processed food products free from chemical additives. Another contributing factor to the search for potent antimicrobials is the escalating number of infections caused by antibiotic-resistant bacteria and the need to mitigate the significant damage inflicted on the commensal human microbiota by broad-spectrum antibiotics. As an alternative bio-preservation strategy, there is substantial enthusiasm for the use of bacteriocins or starter cultures producing bacteriocins in preserving a variety of food items. This review specifically focuses on bacteriocins originating from lactic acid bacteria associated with fermented foods and explores their technological applications as nanobiotics. The food-grade antibiotic alternatives, whether utilized independently or in combination with other antimicrobials and administered directly or encapsulated, are anticipated to possess qualities of safety, stability and non-toxicity suitable for application in the food sector. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Vishakha Bisht
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Roorkee, India
| | - Biki Das
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Roorkee, India
| | - Naveen Kumar Navani
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Roorkee, India
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Otto SJ, Teichmann L, Fante N, Crauwels P, Grünberger A, Neddermann T, Riedel CU. High-throughput detection of potential bacteriocin producers in a large strain library using live fluorescent biosensors. Front Bioeng Biotechnol 2024; 12:1405202. [PMID: 39144483 PMCID: PMC11321961 DOI: 10.3389/fbioe.2024.1405202] [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: 03/22/2024] [Accepted: 07/03/2024] [Indexed: 08/16/2024] Open
Abstract
The global increase in antibiotic resistances demands for additional efforts to identify novel antimicrobials such as bacteriocins. These antimicrobial peptides of bacterial origin are already used widely in food preservation and promising alternatives for antibiotics in animal feed and some clinical setting. Identification of novel antimicrobials is facilitated by appropriate high throughput screening (HTS) methods. Previously, we have described a rapid, simple and cost-efficient assay based on live biosensor bacteria for detection of antimicrobial compounds that act on membrane integrity using the ratiometric pH-dependent fluorescent protein pHluorin2 (pHin2). Here, we use these biosensors to develop an integrated pipeline for high-throughput identification of bacteriocin producers and their biosynthetic gene clusters. We extend the existing portfolio of biosensors by generating pHin2 expressing strains of Escherichia coli, Bacillus cereus, Staphylococcus epidermidis, and methicillin-resistant Staphylococcus aureus. These strains were characterized, and control experiments were performed to assess heterogeneity of these biosensors in response to known bacteriocins and develop a robust HTS system. To allow detection of compounds that inhibit target bacteria by inhibiting growth without disturbing membrane integrity, the HTS system was extended with a growth-dependent readout. Using this HTS system, we screened supernatants of a total of 395 strains of a collection of lactic acid bacteria. After two rounds of screening 19 strains of the collection were identified that produced antimicrobial activity against Listeria innocua and Listeria monocytogenes. Genomes of confirmed hits were sequenced and annotated. In silico analysis revealed that the identified strains encode between one and six biosynthetic gene clusters (BGCs) for bacteriocins. Our results suggest that pHin2 biosensors provides a flexible, cheap, fast, robust and easy to handle HTS system for identification of potential bacteriocins and their BGCs in large strain collections.
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Affiliation(s)
| | | | - Niklas Fante
- Multiscale Bioengineering, Technical Faculty, Bielefeld University, Bielefeld, Germany
| | | | - Alexander Grünberger
- Multiscale Bioengineering, Technical Faculty, Bielefeld University, Bielefeld, Germany
- Microsystems in Bioprocess Engineering, Institute of Process Engineering in Life Sciences, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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Lima JMS, Carneiro KO, Pinto UM, Todorov SD. Bacteriocinogenic anti-listerial properties and safety assessment of Enterococcus faecium and Lactococcus garvieae strains isolated from Brazilian artisanal cheesemaking environment. J Appl Microbiol 2024; 135:lxae159. [PMID: 38925659 DOI: 10.1093/jambio/lxae159] [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: 02/09/2024] [Revised: 05/17/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024]
Abstract
AIMS This study aimed to prospect and isolate lactic acid bacteria (LAB) from an artisanal cheese production environment, to assess their safety, and to explore their bacteriocinogenic potential against Listeria monocytogenes. METHODS AND RESULTS Samples were collected from surfaces of an artisanal-cheese production facility and after rep-PCR and 16S rRNA sequencing analysis, selected strains were identified as to be belonging to Lactococcus garvieae (1 strain) and Enterococcus faecium (14 isolates, grouped into three clusters) associated with different environments (worktables, cheese mold, ripening wooden shelves). All of them presented bacteriocinogenic potential against L. monocytogenes ATCC 7644 and were confirmed as safe (γ-hemolytic, not presenting antibiotic resistance, no mucus degradation properties, and no proteolytic or gelatinase enzyme activity). Additionally, cell growth, acidification and bacteriocins production kinetics, bacteriocin stability in relation to different temperatures, pH, and chemicals were evaluated. According to performed PCR analysis all studied strains generated positive evidence for the presence of entA and entP genes (for production of enterocins A and enterocins P, respectively). However, pediocin PA-1 associated gene was recorded only in DNA obtained from E. faecium ST02JL and Lc. garvieae ST04JL. CONCLUSIONS It is worth considering the application of these safe LAB or their bacteriocins in situ as an alternative means of controlling L. monocytogenes in cheese production environments, either alone or in combination with other antimicrobials.
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Affiliation(s)
- João Marcos Scafuro Lima
- ProBacLab, Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of São Paulo, Sao Paulo, 05508-000, SP, Brazil
- Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of São Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Kayque Ordonho Carneiro
- ProBacLab, Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of São Paulo, Sao Paulo, 05508-000, SP, Brazil
- Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of São Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Uelinton Manoel Pinto
- Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of São Paulo, Sao Paulo, 05508-000, SP, Brazil
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of São Paulo, Sao Paulo, 05508-000, SP, Brazil
- Laboratory of Food Microbiology, Department of Food and Experimental Nutrition, Food Research Center, Faculty of Pharmaceutical Sciences, University of São Paulo, Sao Paulo, 05508-000, SP, Brazil
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Wei L, Wong D, Jeoh T, Marco ML. Intestinal delivery of encapsulated bacteriocin peptides in cross-linked alginate microcapsules. Food Res Int 2024; 188:114473. [PMID: 38823837 DOI: 10.1016/j.foodres.2024.114473] [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: 10/28/2023] [Revised: 01/25/2024] [Accepted: 05/07/2024] [Indexed: 06/03/2024]
Abstract
Oral delivery of larger bioactive peptides (>20 amino acids) to the small intestine remains a challenge due to their sensitivity to proteolytic degradation and chemical denaturation during gastrointestinal transit. In this study, we investigated the capacity of crosslinked alginate microcapsules (CLAMs) formed by spray drying to protect Plantaricin EF (PlnEF) (C-EF) in gastric conditions and to dissolve and release PlnEF in the small intestine. PlnEF is an unmodified, two-peptide (PlnE: 33 amino acids; PlnF: 34 amino acids) bacteriocin produced by Lactiplantibacillus plantarum with antimicrobial and gut barrier protective properties. After 2 h incubation in simulated gastric fluid (SGF) (pH 1.5), 43.39 % ± 8.27 % intact PlnEF was liberated from the CLAMs encapsulates, as determined by an antimicrobial activity assay. Transfer of the undissolved fraction to simulated intestinal fluid (SIF) (pH 7) for another 2 h incubation resulted in an additional release of 16.13 % ± 4.33 %. No active PlnEF was found during SGF or sequential SIF incubations when pepsin (2,000 U/ml) was added to the SGF. To test PlnEF release in C-EF contained in a food matrix, C-EF was mixed in peanut butter (PB) (0.15 g C-EF in 1.5 g PB). A total of 12.52 % ± 9.09 % active PlnEF was detected after incubation of PB + C-EF in SGF without pepsin, whereas no activity was found when pepsin was included. Transfer of the remaining PB + C-EF fractions to SIF yielded the recovery of 46.67 % ± 13.09 % and 39.42 % ± 11.53 % active PlnEF in the SIF following exposure to SGF and to SGF with pepsin, respectively. Upon accounting for the undissolved fraction after SIF incubation, PlnEF was fully protected in the CLAMs-PB mixture and there was not a significant reduction in active PlnEF when pepsin was present. These results show that CLAMs alone do not guard PlnEF bacteriocin peptides from gastric conditions, however, mixing them in PB protected against proteolysis and improved intestinal release.
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Affiliation(s)
- Lei Wei
- Department of Food Science and Technology, University of California, Davis, USA
| | - Dana Wong
- Department of Biological and Agricultural Engineering, University of California, Davis, USA
| | - Tina Jeoh
- Department of Biological and Agricultural Engineering, University of California, Davis, USA
| | - Maria L Marco
- Department of Food Science and Technology, University of California, Davis, USA.
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Śmiałek-Bartyzel J, Bzowska M, Mak P. Pro-inflammatory properties of aureocin A53. Microbes Infect 2024; 26:105365. [PMID: 38777105 DOI: 10.1016/j.micinf.2024.105365] [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: 12/27/2023] [Revised: 03/06/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Aureocin A53 is a peptide bacteriocin produced by an opportunistic pathogen Staphylococcus aureus strain A53. The spatial structure of aureocin, unlike its amino acid sequence, is similar to the bacteriocin BacSp222, which was recently found to have the ability to induce the inflammatory response in the host cells. The presented research aimed to verify such properties also for aureocin A53. We demonstrated that the synthetic aureocin has slight cytotoxic activity towards murine monocytic-macrophage cells. This molecule was also able to activate murine P388.D1 and RAW 264.7 cells to IFN-γ-dependent production of nitric oxide and to activate production of the pro-inflammatory cytokine - TNF. We also proved that the observed pro-inflammatory activity of the studied bacteriocin is related to the stimulation of the TLR2/TLR6 heterodimer and, consequently, activation of the NF-κB transcription factor. To sum up, A53 is the second bacteriocin described in the literature, showing the pro-inflammatory activity against murine macrophage-like cells.
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Affiliation(s)
- Justyna Śmiałek-Bartyzel
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Łojasiewicza 11 St., 30-348 Kraków, Poland; Department of Analytical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7 St., 30-387 Kraków, Poland
| | - Monika Bzowska
- Department of Cell Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7 St., 30-387 Kraków, Poland
| | - Paweł Mak
- Department of Analytical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7 St., 30-387 Kraków, Poland.
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Mutukumira AN, Todorov SD. Special Issue: Probiotic Potential of Isolated Cultures from Spontaneously or Naturally Fermented Food Products. Foods 2024; 13:1817. [PMID: 38928759 PMCID: PMC11203021 DOI: 10.3390/foods13121817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Fermentation is probably the oldest ancient tradition used by indigenous inhabitants for the preservation of food [...].
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Affiliation(s)
- Anthony N. Mutukumira
- School of Food and Advanced Technology, Massey University, Auckland 0745, New Zealand;
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo 05508-000, SP, Brazil
- CISAS—Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, Portugal
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Todorov SD, Alves VF, Popov I, Weeks R, Pinto UM, Petrov N, Ivanova IV, Chikindas ML. Antimicrobial Compounds in Wine. Probiotics Antimicrob Proteins 2024; 16:763-783. [PMID: 37855943 DOI: 10.1007/s12602-023-10177-0] [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] [Accepted: 10/10/2023] [Indexed: 10/20/2023]
Abstract
Ipsum vinum est potestas et possession (wine itself is power and possession). Wine is a complex system that triggers multisensory cognitive stimuli. Wine and its consumption are thoroughly intertwined with the development of human society. The beverage was appreciated in many ancient mythologies and plays an essential part in Christianity and rituals to this day. Wine has been said to enlighten and inspire artists and has even been prohibited by law and some religions, but has nevertheless played a role in human civilizations since the beginning. Winemaking is also a prospering and economically important industry and a longtime symbol of status and luxury. In winemaking, the formation of the final product is influenced by several factors that contribute to the chemical and sensory complexity often associated with quality vintages. Factors such as terroir, climatic conditions, variety of the grape, all aspects of the winemaking process to the smallest details, including metabolic processes carried out by yeast and malolactic bacteria, and the conditions for the maturation and storage of the final product, up to, and even beyond the point of deciding to open the bottle and enjoy the wine. In conjunction with the empiric and scientific process of winemaking, different molecules with antibacterial activity can be identified in wine during the production process, and several of them are clearly present in the final product. Some of these antibacterial components are phytochemicals, such as flavonoids and phenolic compounds, that may be delivered to the final product (wine) as a part of the grape, a variety of potential additive compounds, or from the oak barrels or clay amphoras used during the maturation process. Others are produced by yeasts and malolactic bacteria and play a role not only in the moderation of the fermentation process but contributing to the microbiological safety and beneficial properties spectra of the final product. Lactic acid bacteria, responsible for conducting malolactic fermentation, contribute to the final balance of the wine but are also directly involved in the production of different compounds exhibiting antibacterial activity. Some examples of these compounds include bacteriocins (antibacterial peptides), diacetyl, organic acids, reuterin, hydrogen peroxide, and carbon dioxide. Major aspects of these different beneficial metabolites are the subject of discussion in this review with the aim of highlighting their beneficial functions.
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Affiliation(s)
- Svetoslav Dimitrov Todorov
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, 05508-000, São Paulo, SP, Brazil.
- Food Research Center (FoRC), Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, 05508-000, São Paulo, SP, Brazil.
- CISAS- Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347, Viana do Castelo, Portugal.
| | - Virginia Farias Alves
- Faculdade de Farmácia, Universidade Federal de Goiás (UFG), 74605-170, Goiânia, GO, Brazil
| | - Igor Popov
- Center for Agrobiotechnology, Don State Technical University, 344000, Gagarina Sq., 1, Rostov-On-Don, Russia
- Division of Immunobiology and Biomedicine, Center of Genetics and Life Sciences, Sirius University of Science and Technology, Olimpijskij av., 1, 354340, Federal Territory Sirius, Russia
| | - Richard Weeks
- Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers State University, 65 Dudley Road, 08901, New Brunswick, NJ, USA
| | - Uelinton Manoel Pinto
- Food Research Center (FoRC), Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, 05508-000, São Paulo, SP, Brazil
| | - Nikolay Petrov
- Laboratory of Virology, New Bulgarian University, Montevideo str. 21, 1618, Sofia, Bulgaria
| | - Iskra Vitanova Ivanova
- Department of General and Industrial Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, 8, Bul. Dragan Tzankov, 1164, Sofia, Bulgaria
| | - Michael L Chikindas
- Center for Agrobiotechnology, Don State Technical University, 344000, Gagarina Sq., 1, Rostov-On-Don, Russia
- Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers State University, 65 Dudley Road, 08901, New Brunswick, NJ, USA
- Department of General Hygiene, I.M. Sechenov First Moscow State Medical University, 119991, Moscow, Russia
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Chavez M, Viscardi S, Ruiz MJ, Sans-Serramitjana E, Durán P. CLI: A new protocol for the isolation of Lactic Acid Bacteria from complex plant samples. J Microbiol Methods 2024; 221:106937. [PMID: 38648958 DOI: 10.1016/j.mimet.2024.106937] [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: 12/21/2023] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
Lactic Acid Bacteria (LAB) are predominantly probiotic microorganisms and the most are Generally Recognized As Safe (GRAS). LAB inhabit in the human gut ecosystem and are largely found in fermented foods and silage. In the last decades, LAB have also has been found in plant microbiota as a new class of microbes with probiotic activity to plants. For this reason, today the scientific interest in the study and isolation of LAB for agronomic application has increased. However, isolation protocols from complex samples such as plant tissues are scarce and inefficient. In this study, we developed a new protocol (CLI, Complex samples LAB Isolation) which yields purified LAB from plants. The sensitivity of CLI protocol was sufficient to isolate representative microorganisms of LAB genera (i.e. Leuconostoc, Lactococcus and Enterococcus). CLI protocol consists on five steps: i) sample preparation and pre-incubation in 1% sterile peptone at 30 °C for 24-48 h; ii) Sample homogenization in vortex by 10 min; iii) sample serial dilution in quarter-strength Ringer solution, iv) incubation in MRS agar plates with 0.2% of sorbic acid, with 1% of CaCO3, O2 < 15%, at pH 5.8 and 37 °C for 48 h.; v) Selection of single colonies with LAB morphology and CaCO3-solubilization halo. Our scientific contribution is that CLI protocol could be used for several complex samples and represents a useful method for further studies involving native LAB.
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Affiliation(s)
- Mariannys Chavez
- Doctoral Program in Natural Bioresource Sciences, Universidad de La Frontera, Temuco 4811230, Chile; Biocontrol Research Laboratory, Universidad de La Frontera, Temuco 4811230, Chile
| | - Sharon Viscardi
- Núcleo de Investigación en Producción Alimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco 4813302, Chile; Laboratorio de Investigación Interdisciplinaria en Microbiología Aplicada, Departamento de Procesos Diagnóstico y Evaluación, Facultad de Ciencias de la Salud, Universidad Católica de Temuco, Manuel Montt 56, Temuco, La Araucanía, Chile
| | - María José Ruiz
- Biocontrol Research Laboratory, Universidad de La Frontera, Temuco 4811230, Chile
| | - Eulàlia Sans-Serramitjana
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile; Biocontrol Research Laboratory, Universidad de La Frontera, Temuco 4811230, Chile
| | - Paola Durán
- Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile; Biocontrol Research Laboratory, Universidad de La Frontera, Temuco 4811230, Chile; Facultad de Ciencias Agropecuarias y Medioambiente, Departamento de Producción Agropecuaria, Universidad de La Frontera, Temuco 4811230, Chile.
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Gupta V, Mastromarino P, Garg R. Effectiveness of Prophylactic Oral and/or Vaginal Probiotic Supplementation in the Prevention of Recurrent Urinary Tract Infections: A Randomized, Double-Blind, Placebo-Controlled Trial. Clin Infect Dis 2024; 78:1154-1161. [PMID: 38084984 DOI: 10.1093/cid/ciad766] [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: 09/06/2023] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Widespread antibiotic resistance has sparked interest in the identification of nonantibiotic strategies, particularly probiotics for the prevention of recurrent urinary tract infections (UTIs). We evaluated the effectiveness of prophylactic probiotic supplementation through oral and intravaginal routes in the prevention of recurrent UTIs. METHODS This double-blind, placebo-controlled study enrolled 174 premenopausal women with a history of recurrent UTIs and randomized them to 1 of the 4 treatment groups: placebo (G1, oral placebo + vaginal placebo), oral probiotic (G2, oral lactic acid bacteria and bifidobacteria + vaginal placebo), vaginal probiotic (G3, oral placebo + vaginal lactobacilli), and probiotic combination (oral lactic acid bacteria and bifidobacteria + vaginal lactobacilli), for 4 months. Participants were followed up for symptomatic UTIs for 1 year. The primary end points were the number of symptomatic UTIs at 4 months, the proportion of participants with at least 1 symptomatic UTI, and the time to the first symptomatic UTI. RESULTS The incidence of UTI at 4 months in G1, G2, G3, and G4 was 70.4%, 61.3%, 40.9%, and 31.8%, respectively. The mean number of symptomatic UTI recurrences at 4 months was significantly lower (P < .05) in G3 (1.06) and G4 (1.07) compared with G1 (2.1) and G2 (1.63). Further, the time to first symptomatic UTI (days) was significantly longer (P < .05) in G3 (123.8) and G4 (141.8) compared with G1 (69.3) and G2 (71.9). Probiotic supplementations were well tolerated with no serious adverse events. CONCLUSIONS Prophylactic supplementation with either vaginal probiotics or in combination with oral probiotics demonstrated effectiveness in preventing recurrent symptomatic UTI episodes. CLINICAL TRIALS REGISTRATION Registered at Clinical Trials Registry India (CTRI): CTRI/2014/02/004425 (https://ctri.nic.in).
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Affiliation(s)
- Varsha Gupta
- Department of Microbiology, Government Medical College and Hospital, Sector-32, Chandigarh, India
| | - Paola Mastromarino
- Department of Public Health Sciences and Infectious Diseases, Section of Microbiology, Sapienza University, Rome, Italy
| | - Ritu Garg
- Department of Microbiology, Dr. B R Ambedkar State Institute of Medical Sciences, Sahibzada Ajit Singh Nagar, Mohali, Punjab, India
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Rahman MS, Shimul MEK, Parvez MAK. Comprehensive analysis of genomic variation, pan-genome and biosynthetic potential of Corynebacterium glutamicum strains. PLoS One 2024; 19:e0299588. [PMID: 38718091 PMCID: PMC11078359 DOI: 10.1371/journal.pone.0299588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 02/13/2024] [Indexed: 05/12/2024] Open
Abstract
Corynebacterium glutamicum is a non-pathogenic species of the Corynebacteriaceae family. It has been broadly used in industrial biotechnology for the production of valuable products. Though it is widely accepted at the industrial level, knowledge about the genomic diversity of the strains is limited. Here, we investigated the comparative genomic features of the strains and pan-genomic characteristics. We also observed phylogenetic relationships among the strains based on average nucleotide identity (ANI). We found diversity between strains at the genomic and pan-genomic levels. Less than one-third of the C. glutamicum pan-genome consists of core genes and soft-core genes. Whereas, a large number of strain-specific genes covered about half of the total pan-genome. Besides, C. glutamicum pan-genome is open and expanding, which indicates the possible addition of new gene families to the pan-genome. We also investigated the distribution of biosynthetic gene clusters (BGCs) among the strains. We discovered slight variations of BGCs at the strain level. Several BGCs with the potential to express novel bioactive secondary metabolites have been identified. Therefore, by utilizing the characteristic advantages of C. glutamicum, different strains can be potential applicants for natural drug discovery.
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Affiliation(s)
- Md. Shahedur Rahman
- Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, Bangladesh
- Department of Genetic Engineering and Biotechnology, Bioinformatics and Microbial Biotechnology Laboratory, Jashore University of Science and Technology, Jashore, Bangladesh
| | - Md. Ebrahim Khalil Shimul
- Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, Bangladesh
- Department of Genetic Engineering and Biotechnology, Bioinformatics and Microbial Biotechnology Laboratory, Jashore University of Science and Technology, Jashore, Bangladesh
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Cresti L, Cappello G, Pini A. Antimicrobial Peptides towards Clinical Application-A Long History to Be Concluded. Int J Mol Sci 2024; 25:4870. [PMID: 38732089 PMCID: PMC11084544 DOI: 10.3390/ijms25094870] [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: 03/27/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Antimicrobial peptides (AMPs) are molecules with an amphipathic structure that enables them to interact with bacterial membranes. This interaction can lead to membrane crossing and disruption with pore formation, culminating in cell death. They are produced naturally in various organisms, including humans, animals, plants and microorganisms. In higher animals, they are part of the innate immune system, where they counteract infection by bacteria, fungi, viruses and parasites. AMPs can also be designed de novo by bioinformatic approaches or selected from combinatorial libraries, and then produced by chemical or recombinant procedures. Since their discovery, AMPs have aroused interest as potential antibiotics, although few have reached the market due to stability limits or toxicity. Here, we describe the development phase and a number of clinical trials of antimicrobial peptides. We also provide an update on AMPs in the pharmaceutical industry and an overall view of their therapeutic market. Modifications to peptide structures to improve stability in vivo and bioavailability are also described.
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Affiliation(s)
- Laura Cresti
- Medical Biotechnology Department, University of Siena, Via A Moro 2, 53100 Siena, Italy; (G.C.); (A.P.)
| | - Giovanni Cappello
- Medical Biotechnology Department, University of Siena, Via A Moro 2, 53100 Siena, Italy; (G.C.); (A.P.)
| | - Alessandro Pini
- Medical Biotechnology Department, University of Siena, Via A Moro 2, 53100 Siena, Italy; (G.C.); (A.P.)
- SetLance srl, Via Fiorentina 1, 53100 Siena, Italy
- Laboratory of Clinical Pathology, Santa Maria alle Scotte University Hospital, 53100 Siena, Italy
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13
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Reuben RC, Torres C. Bacteriocins: potentials and prospects in health and agrifood systems. Arch Microbiol 2024; 206:233. [PMID: 38662051 PMCID: PMC11045635 DOI: 10.1007/s00203-024-03948-y] [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: 02/02/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/26/2024]
Abstract
Bacteriocins are highly diverse, abundant, and heterogeneous antimicrobial peptides that are ribosomally synthesized by bacteria and archaea. Since their discovery about a century ago, there has been a growing interest in bacteriocin research and applications. This is mainly due to their high antimicrobial properties, narrow or broad spectrum of activity, specificity, low cytotoxicity, and stability. Though initially used to improve food quality and safety, bacteriocins are now globally exploited for innovative applications in human, animal, and food systems as sustainable alternatives to antibiotics. Bacteriocins have the potential to beneficially modulate microbiota, providing viable microbiome-based solutions for the treatment, management, and non-invasive bio-diagnosis of infectious and non-infectious diseases. The use of bacteriocins holds great promise in the modulation of food microbiomes, antimicrobial food packaging, bio-sanitizers and antibiofilm, pre/post-harvest biocontrol, functional food, growth promotion, and sustainable aquaculture. This can undoubtedly improve food security, safety, and quality globally. This review highlights the current trends in bacteriocin research, especially the increasing research outputs and funding, which we believe may proportionate the soaring global interest in bacteriocins. The use of cutting-edge technologies, such as bioengineering, can further enhance the exploitation of bacteriocins for innovative applications in human, animal, and food systems.
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Affiliation(s)
- Rine Christopher Reuben
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006, Logroño, Spain.
| | - Carmen Torres
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006, Logroño, Spain
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Choi GH, Fugaban JII, Dioso CM, Bucheli JEV, Holzapfel WH, Todorov SD. Safety and Beneficial Properties of Bacteriocinogenic Lactococcus lactis and Pediococcus pentosaceus Strains, and Their Effect Versus Oral Cavity Related and Antibiotic-Resistant Pathogens. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10245-z. [PMID: 38564170 DOI: 10.1007/s12602-024-10245-z] [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] [Accepted: 03/11/2024] [Indexed: 04/04/2024]
Abstract
Pediococcus pentosaceus 732, Lactococcus lactis subsp. lactis 431, and Lactococcus lactis 808, bacteriocinogenic strains previously isolated from kimchi and banana, were investigated for their safety, beneficial properties and in vitro inhibition of pathogens such as Listeria monocytogenes ATCC 15313 and Staphylococcus simulans KACC 13241 and Staphylococcus auricularis KACC 13252. The results of performed physiological, biochemical, and biomolecular tests suggest that these strains can be deemed safe, as no virulence genes were detected in their DNA. Notably, only the gad gene associated with GABA production was identified in the DNA isolated of Lc. lactis 808 and Lc. lactis subsp. lactis 431 strains. All tested LAB strains exhibited γ-hemolysins and were non-producers of gelatinase and biogenic amines, which suggested their safety potential. Additionally, they were relatively susceptible to antibiotics except for streptomycin, tobramycin, and vancomycin for Pd. pentosaceus 732. The growth of Pd. pentosaceus 732, Lc. lactis subsp. lactis 431, and Lc. lactis 808 and their survival were minimally affected by up to 3% ox bile and low pH (except pH 2.0 and 4.0). Moreover, these LAB strains were not inhibited by various commercial extracts as well as most of the tested medications tested in the study. They did not produce proteolytic enzymes but exhibited production of D/L-lactic acid and β-galactosidase. They were also hydrophilic. Furthermore, their survival in artificial saliva, gastric simulation, and enteric passage was measured followed by a challenge test to assess their ability to inhibit the selected oral pathogens in an oral saliva model conditions.
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Affiliation(s)
- Gee Hyeun Choi
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Joanna Ivy Irorita Fugaban
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
- National Food Institute, Technical University of Denmark, Building 202, Rm. 3.234, Kongens Lyngby, 2800, Kemitorvet, Denmark
| | - Clarizza May Dioso
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Jorge Enrique Vazquez Bucheli
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Wilhelm Heinrich Holzapfel
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea.
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.
- CISAS - Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana do Castelo, 4900-347, Viana Do Castelo, Portugal.
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Johny LC, Kumar BSG, Rao SJA, Suresh PV. Anti-listerial peptides from a marine Bacillus velezensis FTL7: production optimization, characterizations and molecular docking studies. 3 Biotech 2024; 14:105. [PMID: 38464616 PMCID: PMC10923759 DOI: 10.1007/s13205-024-03944-5] [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: 03/14/2023] [Accepted: 01/28/2024] [Indexed: 03/12/2024] Open
Abstract
Antimicrobial peptides (AMPs) with potent anti-listerial activity were characterized from a novel marine Bacillus velezensis FTL7. A Box-Behnken statistical experimental design was used to study the combined impact of culture conditions on the production of AMPs by B. velezensis FTL7. The conditions optimized by statistical experimental design were 34.5 °C incubation temperature, 23 h incubation time, and 7.6 initial pH of the medium. AMP purification was performed by ammonium sulphate fractionation and butanol extraction followed by reversed-phase C18 solid-phase extraction. Tricine-SDS-PAGE analysis revealed a peptide with a molecular mass of ~ 6.5 kDa in an active AMPs fraction, whereas the mass spectrometry (MS) analysis showed the presence of AMPs in the mass range of 1-1.6 kDa, along with a 6.5 kDa peptide. Both MS and MS/MS analysis confirmed the AMPs as lipopeptides including surfactin, fengycins and iturin A and a circular bacteriocin amylocyclicin. The minimum inhibitory concentration of these AMPs against L. monocytogenes Scott A was 2.5 µg/mL. Further, the in-silico docking studies showed that the AMPs from B. velezensis FTL7 have high binding energy and stable binding patterns towards L. monocytogenes target proteins. Thus, this new combination of AMPs can serve as an effective food bio-preservative. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-024-03944-5.
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Affiliation(s)
- Lidiya C. Johny
- Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysore, 570020 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - B. S. Gnanesh Kumar
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, 570020 India
| | - S. J. Aditya Rao
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore, 570020 India
- Kimberlite Chemicals India Pvt. Ltd, KIADB III Phase, Doddaballapur, Bangalore, 561203 India
| | - P. V. Suresh
- Meat and Marine Sciences Department, CSIR-Central Food Technological Research Institute, Mysore, 570020 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
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16
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Todorov SD, Wachsman M, Tomé E, Vaz-Velho M, Ivanova IV. Plasmid-Associated Bacteriocin Produced by Pediococcus pentosaceus Isolated from Smoked Salmon: Partial Characterization and Some Aspects of his Mode of Action. Probiotics Antimicrob Proteins 2024; 16:394-412. [PMID: 36928486 DOI: 10.1007/s12602-023-10059-5] [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] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
Strain ST3Ha, isolated from commercially available smoked salmon, was identified as Pediococcus pentosaceus based on biochemical and physiological tests and 16S rRNA sequencing. Strain ST3Ha produces a class IIa bacteriocin active against lactic acid bacteria, Listeria monocytogenes and Enterococcus faecalis. The antimicrobial peptide was inactivated by proteolytic enzymes, confirming his proteinaceous nature, but was not affected when treated with α-amylase, SDS, Tween 20, Tween 80, urea, and EDTA. No change in activity was recorded after 2 h at pH values between 2.0 and 9.0 and after treatment at 100 °C for 120 min or 121 °C for 15 min. The mode of action against Listeria ivanovii subsp. ivanovii ATCC 19119 and E. faecalis ATCC 19443 was bactericidal, resulting in cell lyses and enzyme leakage. The highest level of activity (1.6 × 106 AU/mL) was recorded when cells were grown at 37 °C or 30 °C in MRS broth (pH 6.5). Antimicrobial peptide ST3Ha adsorbs at high levels to the sensitive test organisms on strain-specific manner and depending on incubation temperature, environmental pH, and presence of supplemented chemicals. Based on PCR analysis, P. pentosaceus ST3Ha harbor a 1044-bp plasmid-associated fragment corresponding in size to that recorded for pediocin PA-1. Sequencing of the fragment revealed a gene identical to pedB, reported for pediocin PA-1. The combined application of the low levels (below MIC) of ciprofloxacin and bacteriocin ST3Ha results in the synergetic effect in the inhibition of L. ivanovii subsp. ivanovii ATCC 19119. Expressed by P. pentosaceus ST3Ha, bacteriocin was characterized as low cytotoxic, a characteristic relevant for its application in food industry and/or in human and veterinary medical practices.
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Affiliation(s)
- Svetoslav Dimitrov Todorov
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea.
- ProBacLab, Laboratório de Microbiologia de Alimentos, Faculdade de Ciências Farmacêuticas, Departamento de Alimentos e Nutrição Experimental, Universidade de São Paulo, SP, São Paulo, Brazil.
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Escola Superior de Tecnologia E Gestão, Instituto Politécnico de Viana Do Castelo, Viana Do Castelo, Portugal.
- Faculty of Biology, Department of General and Applied Microbiology, Sofia University St. Kliment Ohridski, 8 Dragan Tzankov Blvd, 1164, Sofia, Bulgaria.
| | - Monica Wachsman
- Laboratorio de Virología, Facultad de Ciencias Exactas Y Naturales, Departamento de Química Biológica, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon 2, Piso 4, C1428EGA, Buenos Aires, Argentina
| | - Elisabetta Tomé
- Tecnologia de Alimentos, Universidad Metropolitana, Caracas, Venezuela
| | - Manuela Vaz-Velho
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Escola Superior de Tecnologia E Gestão, Instituto Politécnico de Viana Do Castelo, Viana Do Castelo, Portugal
| | - Iskra Vitanova Ivanova
- Faculty of Biology, Department of General and Applied Microbiology, Sofia University St. Kliment Ohridski, 8 Dragan Tzankov Blvd, 1164, Sofia, Bulgaria
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17
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Jones J, Murphy CP, Sleator RD, Culligan EP. An exploratory in silico analysis of bacteriocin gene clusters in the urobiome. MICROBIOME RESEARCH REPORTS 2024; 3:24. [PMID: 38846023 PMCID: PMC11153084 DOI: 10.20517/mrr.2023.78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/04/2024] [Accepted: 03/18/2024] [Indexed: 06/09/2024]
Abstract
Background: The role of the urobiome in health and disease remains an understudied area compared to the rest of the human microbiome. Enhanced culturing techniques and next-generation sequencing technologies have identified the urobiome as an untapped source of potentially novel antimicrobials. The aim of this study was to screen the urobiome for genes encoding bacteriocin production. Methods: The genomes of 181 bacterial urobiome isolates were screened in silico for the presence of bacteriocin gene clusters using the bacteriocin mining tool BAGEL4 and secondary metabolite screening tool antiSMASH7. Results: From these isolates, an initial 263 areas of interest were identified, manually annotated, and evaluated for potential bacteriocin gene clusters. This resulted in 32 isolates containing 80 potential bacteriocin gene clusters, of which 72% were identified as class II, 13.75% as class III, 8.75% as class I, and 5% as unclassified bacteriocins. Conclusion: Overall, 53 novel variants were discovered, including nisin, gassericin, ubericin, and colicins.
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Affiliation(s)
| | | | | | - Eamonn P. Culligan
- Department of Biological Sciences, Munster Technological University, Bishopstown, Cork T12 P928, Ireland
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18
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Fugaban JII, Dioso CM, Choi GH, Bucheli JEV, Liong MT, Holzapfel WH, Todorov SD. The Evaluation of Different Bacteriocinogenic Bacillus spp. with Activity Against Staphylococcus spp. and Their Beneficial and/or Hazardous Properties. Probiotics Antimicrob Proteins 2024; 16:35-52. [PMID: 36445687 DOI: 10.1007/s12602-022-10017-7] [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] [Accepted: 11/22/2022] [Indexed: 11/30/2022]
Abstract
The aim of this project was to screen for bacteriocinogenic Bacillus strains with activity versus Staphylococcus spp. with future application in formulation of pharmaceutical antimicrobial preparations. Putative bacteriocinogenic strains, isolated and pre-identified as Bacillus spp. were selected for future study and differentiated based on repPCR and identified as Bacillus subtilis for strains ST826CD and ST829CD, Bacillus subtilis subsp. stercoris for strain ST794CD, Bacillus subtilis subsp. spizizenii for strain ST824CD, Bacillus velezensis for strain ST796CD, and Bacillus tequilensis for strain ST790CD. Selected strains were evaluated regarding their safety/virulence, beneficial properties, and potential production of antimicrobials based on biomolecular and physiological approves. Expressed bacteriocins were characterized regarding their proteinaceous nature, stability at different levels of pH, temperatures, and the presence of common chemicals applied in bacterial cultivation and bacteriocin purification. Dynamic of bacterial growth, acidification, and cumulation of produced bacteriocins and some aspects of the bacteriocins mode of action were evaluated. Based on obtained results, isolation and application of expressed antimicrobials can be realistic scenario for treatment of some staphylococcal associated infections. Appropriate biotechnological approaches need to be developed for cost effective production, isolation, and purification of expressed antimicrobials by studied Bacillus strains.
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Affiliation(s)
- Joanna Ivy Irorita Fugaban
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea
- National Food Institute, Technical University of Denmark, Building 202, Rm. 3.234, Kemitorvet, Kongens, Lyngby, 2800, Denmark
| | - Clarizza May Dioso
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea
| | - Gee Hyeun Choi
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea
| | - Jorge Enrique Vazquez Bucheli
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea
| | - Min-Tze Liong
- School of Industrial Technology, Universiti Sains Malaysia, Penang, 11800, Malaysia
| | - Wilhelm Heinrich Holzapfel
- Human Effective Microbes, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea.
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo (SP), Brazil.
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19
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Somalou P, Ieronymaki E, Feidaki K, Prapa I, Stylianopoulou E, Spyridopoulou K, Skavdis G, Grigoriou ME, Panas P, Argiriou A, Tsatsanis C, Kourkoutas Y. Novel Wild-Type Pediococcus and Lactiplantibacillus Strains as Probiotic Candidates to Manage Obesity-Associated Insulin Resistance. Microorganisms 2024; 12:231. [PMID: 38399636 PMCID: PMC10891751 DOI: 10.3390/microorganisms12020231] [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: 11/25/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/25/2024] Open
Abstract
As the food and pharmaceutical industry is continuously seeking new probiotic strains with unique health properties, the aim of the present study was to determine the impact of short-term dietary intervention with novel wild-type strains, isolated from various sources, on high-fat diet (HFD)-induced insulin resistance. Initially, the strains were evaluated in vitro for their ability to survive in simulated gastrointestinal (GI) conditions, for adhesion to Caco-2 cells, for bile salt hydrolase secretion, for cholesterol-lowering and cellular cholesterol-binding ability, and for growth inhibition of food-borne pathogens. In addition, safety criteria were assessed, including hemolytic activity and susceptibility to antibiotics. The in vivo test on insulin resistance showed that mice receiving the HFD supplemented with Pediococcus acidilactici SK (isolated from human feces) or P. acidilactici OLS3-1 strain (isolated from olive fruit) exhibited significantly improved insulin resistance compared to HFD-fed mice or to the normal diet (ND)-fed group.
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Affiliation(s)
- Paraskevi Somalou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (P.S.); (I.P.); (E.S.); (K.S.); (G.S.); (M.E.G.)
| | - Eleftheria Ieronymaki
- Laboratory of Clinical Chemistry, Department of Laboratory Medicine, Medical School, University of Crete, 71003 Crete, Greece; (E.I.); (C.T.)
| | - Kyriaki Feidaki
- Institute of Applied Sciences, Centre for Research and Technology, 57001 Thessaloniki, Greece; (K.F.); (A.A.)
- Department of Food Science and Nutrition, University of the Aegean, 81400 Lemnos, Greece
| | - Ioanna Prapa
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (P.S.); (I.P.); (E.S.); (K.S.); (G.S.); (M.E.G.)
| | - Electra Stylianopoulou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (P.S.); (I.P.); (E.S.); (K.S.); (G.S.); (M.E.G.)
| | - Katerina Spyridopoulou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (P.S.); (I.P.); (E.S.); (K.S.); (G.S.); (M.E.G.)
| | - George Skavdis
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (P.S.); (I.P.); (E.S.); (K.S.); (G.S.); (M.E.G.)
| | - Maria E. Grigoriou
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (P.S.); (I.P.); (E.S.); (K.S.); (G.S.); (M.E.G.)
| | | | - Anagnostis Argiriou
- Institute of Applied Sciences, Centre for Research and Technology, 57001 Thessaloniki, Greece; (K.F.); (A.A.)
- Department of Food Science and Nutrition, University of the Aegean, 81400 Lemnos, Greece
| | - Christos Tsatsanis
- Laboratory of Clinical Chemistry, Department of Laboratory Medicine, Medical School, University of Crete, 71003 Crete, Greece; (E.I.); (C.T.)
- Institute for Molecular Biology and Biotechnology, FORTH, 71100 Heraklion, Greece
| | - Yiannis Kourkoutas
- Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; (P.S.); (I.P.); (E.S.); (K.S.); (G.S.); (M.E.G.)
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20
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Fernandes da Silva CG, Santos Lopes F, Cardoso Vieira Valois ÁF, Vieira Prudêncio C. Sensitivity of Salmonella Typhimurium to nisin in vitro and in orange juice under refrigeration. FEMS Microbiol Lett 2024; 371:fnae031. [PMID: 38714347 DOI: 10.1093/femsle/fnae031] [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: 03/06/2024] [Revised: 04/14/2024] [Accepted: 05/06/2024] [Indexed: 05/09/2024] Open
Abstract
The influence of environmental factors on Salmonella sensitivity to nisin in vitro and in refrigerated orange juice were investigated. Nisin activity was observed in the different conditions, but the highest efficiency was achieved at lower pH (4.0) and with higher bacteriocin concentration (174 µM). Moreover, the bactericidal action was directly proportional to the incubation period. When tested in orange juice, nisin caused a reduction of up to 4.05 logarithm cycles in the Salmonella population. So, environmental factors such as low pH and low temperature favored the sensitization of Salmonella cells to the bactericidal action of nisin. Therefore, this may represent an alternative to control Salmonella in refrigerated foods.
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Affiliation(s)
| | | | | | - Cláudia Vieira Prudêncio
- Centro das Ciências Biológicas e da Saúde, Universidade Federal do Oeste da Bahia, Barreiras, 47810-047, Bahia, Brazil
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21
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Desiderato CK, Müller C, Schretzmeier A, Hasenauer KM, Gnannt B, Süpple B, Reiter A, Steier V, Oldiges M, Eikmanns BJ, Riedel CU. Optimized recombinant production of the bacteriocin garvicin Q by Corynebacterium glutamicum. Front Microbiol 2024; 14:1254882. [PMID: 38260893 PMCID: PMC10800739 DOI: 10.3389/fmicb.2023.1254882] [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: 07/07/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024] Open
Abstract
Bacteriocins are antimicrobial peptides applied in food preservation and are interesting candidates as alternatives to conventional antibiotics or as microbiome modulators. Recently, we established Corynebacterium glutamicum as a suitable production host for various bacteriocins including garvicin Q (GarQ). Here, we establish secretion of GarQ by C. glutamicum via the Sec translocon achieving GarQ titers of about 7 mg L-1 in initial fermentations. At neutral pH, the cationic peptide is efficiently adsorbed to the negatively charged envelope of producer bacteria limiting availability of the bacteriocin in culture supernatants. A combination of CaCl2 and Tween 80 efficiently reduces GarQ adsorption to C. glutamicum. Moreover, cultivation in minimal medium supplemented with CaCl2 and Tween 80 improves GarQ production by C. glutamicum to about 15 mg L-1 but Tween 80 resulted in reduced GarQ activity at later timepoints. Using a reporter strain and proteomic analyses, we identified HtrA, a protease associated with secretion stress, as another potential factor limiting GarQ production. Transferring production to HtrA-deficient C. glutamicum K9 improves GarQ titers to close to 40 mg L-1. Applying conditions of low aeration prevented loss in activity at later timepoints and improved GarQ titers to about 100 mg L-1. This is about 50-fold higher than previously shown with a C. glutamicum strain employing the native GarQ transporter GarCD for secretion and in the range of levels observed with the native producer Lactococcus petauri B1726. Additionally, we tested several synthetic variants of GarQ and were able to show that exchange of the methionine in position 5 to a phenylalanine (GarQM5F) results in markedly increased activity against Lactococcus lactis and Listeria monocytogenes. In summary, our findings shed light on several aspects of recombinant GarQ production that may also be of relevance for production with natural producers and other bacteriocins.
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Affiliation(s)
- Christian K. Desiderato
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Carolin Müller
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Alexander Schretzmeier
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Katharina M. Hasenauer
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Bruno Gnannt
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Bastian Süpple
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Alexander Reiter
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Valentin Steier
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Marco Oldiges
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, Jülich, Germany
- Institute of Biotechnology, RWTH Aachen University, Aachen, Germany
| | - Bernhard J. Eikmanns
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
| | - Christian U. Riedel
- Institute of Molecular Biology and Biotechnology of Prokaryotes, University of Ulm, Ulm, Germany
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22
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Elisa Heesemann Rosenkilde C, Olsen Lützhøft D, Vazquez-Uribe R, Otto Alexander Sommer M. Heterologous expression and antimicrobial potential of class II bacteriocins. Gut Microbes 2024; 16:2369338. [PMID: 38899682 PMCID: PMC11195462 DOI: 10.1080/19490976.2024.2369338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 06/12/2024] [Indexed: 06/21/2024] Open
Abstract
Gut bacteria are known to produce bacteriocins to inhibit the growth of other bacteria. Consequently, bacteriocins have attracted increased attention as potential microbiome-editing tools. In this study we examine the inhibitory spectrum of 75 class II bacteriocins against 48 representative gut microbiota species. The bacteriocins were heterologously expressed in Escherichia coli and evaluated in vitro, ex vivo and in vivo. In vitro assays revealed 22 bacteriocins to inhibit at least one species and showed selective inhibition patterns against species implicated in certain disorders and diseases. Three bacteriocins were selected for ex vivo assessment on mouse feces. Based on 16S rRNA sequencing of the cultivated feces we showed that the two bacteriocins: Actifencin (#13) and Bacteroidetocin A (#22) selectively inhibited the growth of Lactobacillus and Bacteroides, respectively. The probiotic: E. coli Nissle 1917 was engineered to express these two bacteriocins in mice. However, the selective inhibitory patterns found in the in vitro and ex vivo experiments could not be observed in vivo. Our study describes a methodology for heterologous high throughput bacteriocin expression and screening and elucidates the inhibitory patterns of class II bacteriocins on the gut microbiota.
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Affiliation(s)
| | - Ditte Olsen Lützhøft
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Ruben Vazquez-Uribe
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Morten Otto Alexander Sommer
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
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23
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Adhikrao PA, Motiram GM, Kumar G. Tackling Nontuberculous Mycobacteria by Repurposable Drugs and Potential Leads from Natural Products. Curr Top Med Chem 2024; 24:1291-1326. [PMID: 38288807 DOI: 10.2174/0115680266276938240108060247] [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: 08/31/2023] [Revised: 12/12/2023] [Accepted: 12/19/2023] [Indexed: 07/25/2024]
Abstract
Nontuberculous Mycobacteria (NTM) refer to bacteria other than all Mycobacterium species that do not cause tuberculosis or leprosy, excluding the species of the Mycobacterium tuberculosis complex, M. leprae and M. lepromatosis. NTM are ubiquitous and present in soils and natural waters. NTM can survive in a wide range of environmental conditions. The direct inoculum of the NTM from water or other materials is most likely a source of infections. NTMs are responsible for several illnesses, including pulmonary alveolar proteinosis, cystic fibrosis, bronchiectasis, chronic obstructive pneumoconiosis, and pulmonary disease. Recent reports suggest that NTM species have become insensitive to sterilizing agents, antiseptics, and disinfectants. The efficacy of existing anti-NTM regimens is diminishing and has been compromised due to drug resistance. New and recurring cases of multidrug-resistant NTM strains are increasing. Thus, there is an urgent need for ant-NTM regimens with novel modes of action. This review sheds light on the mode of antimicrobial resistance in the NTM species. Then, we discussed the repurposable drugs (antibiotics) that have shown new indications (activity against NTM strains) that could be developed for treating NTM infections. Also, we have summarised recently identified natural leads acting against NTM, which have the potential for treating NTM-associated infections.
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Affiliation(s)
- Patil Amruta Adhikrao
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India
| | - Gudle Mayuri Motiram
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India
| | - Gautam Kumar
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India
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24
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Daba GM, Elkhateeb WA. Ribosomally synthesized bacteriocins of lactic acid bacteria: Simplicity yet having wide potentials - A review. Int J Biol Macromol 2024; 256:128325. [PMID: 38007012 DOI: 10.1016/j.ijbiomac.2023.128325] [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: 07/21/2023] [Revised: 10/02/2023] [Accepted: 11/11/2023] [Indexed: 11/27/2023]
Abstract
Bacteriocins are ribosomally made bacterial peptides that have outstanding contributions in the field of food industry, as biopreservatives, and promising potentials in the medical field for improving human and animal health. Bacteriocins have many advantages over antibiotics such as being primary metabolites with relatively simpler biosynthetic mechanisms, which made their bioengineering for activity or specificity improving purposes much easier. Also, bacteriocins are degraded by proteolytic enzymes and do not stay in environment, which reduce chances of developing resistance. Bacteriocins can improve activity of some antibiotics, and some bacteriocins show potency against multidrug-resistant bacteria. Moreover, some potent bacteriocins have antiviral, antifungal, and antiprotozoal (antileishmanial) activities. On the other hand, bacteriocins have been introduced into the treatment of some ulcers and types of cancer. These potentials make bacteriocins attract extra attention as promising biotechnological tool. Hence, the history, characteristics, and classification of bacteriocins are described in this review. Furthermore, the main difference between bacteriocins and other antimicrobial peptides is clarified. Also, bacteriocins biosynthesis and identified modes of action are elucidated. Additionally, current and potential applications of bacteriocins in food and medical fields are highlighted. Finally, future perspectives concerning studying bacteriocins and their applications are discussed.
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Affiliation(s)
- Ghoson Mosbah Daba
- Chemistry of Natural and Microbial Products Department, Pharmaceutical Industries Researches Institute, National Research Centre, El Buhouth St., Egypt.
| | - Waill Ahmed Elkhateeb
- Chemistry of Natural and Microbial Products Department, Pharmaceutical Industries Researches Institute, National Research Centre, El Buhouth St., Egypt
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25
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Gu Q, Yan J, Lou Y, Zhang Z, Li Y, Zhu Z, Liu M, Wu D, Liang Y, Pu J, Zhao X, Xiao H, Li P. Bacteriocins: Curial guardians of gastrointestinal tract. Compr Rev Food Sci Food Saf 2024; 23:e13292. [PMID: 38284593 DOI: 10.1111/1541-4337.13292] [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: 08/30/2023] [Revised: 12/05/2023] [Accepted: 12/14/2023] [Indexed: 01/30/2024]
Abstract
The human gastrointestinal (GI) tract microbiome secretes various metabolites that play pivotal roles in maintaining host physiological balance and influencing disease progression. Among these metabolites, bacteriocins-small, heat-stable peptides synthesized by ribosomes-are notably prevalent in the GI region. Their multifaceted benefits have garnered significant interest in the scientific community. This review comprehensively explores the methods for mining bacteriocins (traditional separation and purification, bioinformatics, and artificial intelligence), their effects on the stomach and intestines, and their complex bioactive mechanisms. These mechanisms include flora regulation, biological barrier restoration, and intervention in epithelial cell pathways. By detailing each well-documented bacteriocin, we reveal the diverse ways in which bacteriocins interact with the GI environment. Moreover, the future research direction is prospected. By further studying the function and interaction of intestinal bacteriocins, we can discover new pharmacological targets and develop drugs targeting intestinal bacteriocins to regulate and improve human health. It provides innovative ideas and infinite possibilities for further exploration, development, and utilization of bacteriocins. The inevitable fact is that the continuously exploration of bacteriocins is sure to bring the promising future for demic GI health understanding and interference strategy.
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Affiliation(s)
- Qing Gu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Jiaqian Yan
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Yeqing Lou
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Zihao Zhang
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Yonglu Li
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Zichun Zhu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Manman Liu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Danli Wu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Ying Liang
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Jiaqian Pu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Xiaodan Zhao
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Ping Li
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China
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26
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Martínez-Ugalde E, Ávila-Akerberg V, González Martínez TM, Rebollar EA. Gene functions of the Ambystoma altamirani skin microbiome vary across space and time but potential antifungal genes are widespread and prevalent. Microb Genom 2024; 10:001181. [PMID: 38240649 PMCID: PMC10868611 DOI: 10.1099/mgen.0.001181] [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: 09/13/2023] [Accepted: 01/02/2024] [Indexed: 01/23/2024] Open
Abstract
Amphibian skin microbiomes can play a critical role in host survival against emerging diseases by protecting their host against pathogens. While a plethora of biotic and abiotic factors have been shown to influence the taxonomic diversity of amphibian skin microbiomes it remains unclear whether functional genomic diversity varies in response to temporal and environmental factors. Here we applied a metagenomic approach to evaluate whether seasonality, distinct elevations/sites, and pathogen presence influenced the functional genomic diversity of the A. altamirani skin microbiome. We obtained a gene catalogue of 92 107 nonredundant annotated genes and a set of 50 unique metagenome assembled genomes (MAGs). Our analysis showed that genes linked to general and potential antifungal traits significantly differed across seasons and sampling locations at different elevations. Moreover, we found that the functional genomic diversity of A. altamirani skin microbiome differed between B. dendrobatidis infected and not infected axolotls only during winter, suggesting an interaction between seasonality and pathogen infection. In addition, we identified the presence of genes and biosynthetic gene clusters (BGCs) linked to potential antifungal functions such as biofilm formation, quorum sensing, secretion systems, secondary metabolite biosynthesis, and chitin degradation. Interestingly genes linked to these potential antifungal traits were mainly identified in Burkholderiales and Chitinophagales MAGs. Overall, our results identified functional traits linked to potential antifungal functions in the A. altamirani skin microbiome regardless of variation in the functional diversity across seasons, elevations/sites, and pathogen presence. Our findings suggest that potential antifungal traits found in Burkholderiales and Chitinophagales taxa could be related to the capacity of A. altamirani to survive in the presence of Bd, although further experimental analyses are required to test this hypothesis.
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Affiliation(s)
| | - Víctor Ávila-Akerberg
- Instituto de Ciencias Agropecuarias y Rurales, Universidad Autónoma del Estado de México, Toluca, Mexico
| | | | - Eria A. Rebollar
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
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27
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Sevillano E, Lafuente I, Peña N, Cintas LM, Muñoz-Atienza E, Hernández PE, Borrero J. Evaluation of Safety and Probiotic Traits from a Comprehensive Genome-Based In Silico Analysis of Ligilactobacillus salivarius P1CEA3, Isolated from Pigs and Producer of Nisin S. Foods 2023; 13:107. [PMID: 38201135 PMCID: PMC10778751 DOI: 10.3390/foods13010107] [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: 11/17/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
Ligilactobacillus salivarius is an important member of the porcine gastrointestinal tract (GIT). Some L. salivarius strains are considered to have a beneficial effect on the host by exerting different probiotic properties, including the production of antimicrobial peptides which help maintain a healthy gut microbiota. L. salivarius P1CEA3, a porcine isolated strain, was first selected and identified by its antimicrobial activity against a broad range of pathogenic bacteria due to the production of the novel bacteriocin nisin S. The assembled L. salivarius P1CEA3 genome includes a circular chromosome, a megaplasmid (pMP1CEA3) encoding the nisin S gene cluster, and two small plasmids. A comprehensive genome-based in silico analysis of the L. salivarius P1CEA3 genome reveals the presence of genes related to probiotic features such as bacteriocin synthesis, regulation and production, adhesion and aggregation, the production of lactic acid, amino acids metabolism, vitamin biosynthesis, and tolerance to temperature, acid, bile salts and osmotic and oxidative stress. Furthermore, the strain is absent of risk-related genes for acquired antibiotic resistance traits, virulence factors, toxic metabolites and detrimental metabolic or enzymatic activities. Resistance to common antibiotics and gelatinase and hemolytic activities have been discarded by in vitro experiments. This study identifies several probiotic and safety traits of L. salivarius P1CEA3 and suggests its potential as a promising probiotic in swine production.
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Affiliation(s)
| | | | | | | | | | | | - Juan Borrero
- Departamento de Nutrición y Ciencia de los Alimentos (NUTRYCIAL), Sección Departamental de Nutrición y Ciencia de los Alimentos (SD-NUTRYCIAL), Facultad de Veterinaria, Universidad Complutense de Madrid (UCM), Avenida Puerta de Hierro, s/n, 28040 Madrid, Spain; (E.S.); (I.L.); (N.P.); (L.M.C.); (E.M.-A.); (P.E.H.)
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28
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Liu B, Zhong X, Liu Z, Guan X, Wang Q, Qi R, Zhou X, Huang J. Probiotic Potential and Safety Assessment of Lactiplantibacillus plantarum cqf-43 and Whole-Genome Sequence Analysis. Int J Mol Sci 2023; 24:17570. [PMID: 38139398 PMCID: PMC10744225 DOI: 10.3390/ijms242417570] [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: 11/13/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023] Open
Abstract
This study reports the whole-genome sequence of Lactiplantibacillus plantarum cqf-43 isolated from healthy sow feces. Based on genomic analysis, we performed a comprehensive safety assessment of strain cqf-43, using both in vitro and in vivo experiments, and explored its probiotic potential. The total genome length measures 3,169,201 bp, boasting a GC content of 44.59%. Through phylogenetic analyses, leveraging both 16S rRNA gene and whole-genome sequences, we confidently categorize strain cqf-43 as a member of Lactiplantibacillus. Genome annotation using Prokka unveiled a total of 3141 genes, encompassing 2990 protein-coding sequences, 71 tRNAs, 16 rRNAs, and 1 tmRNA. Functional annotations derived from COG and KEGG databases highlighted a significant abundance of genes related to metabolism, with a notable emphasis on carbohydrate utilization. The genome also revealed the presence of prophage regions and CRISPR-Cas regions while lacking virulence and toxin genes. Screening for antibiotic resistance genes via the CARD database yielded no detectable transferable resistance genes, effectively eliminating the potential for harmful gene transfer. It is worth highlighting that the virulence factors identified via the VFDB database primarily contribute to bolstering pathogen resilience in hostile environments. This characteristic is particularly advantageous for probiotics. Furthermore, the genome is devoid of menacing genes such as hemolysin, gelatinase, and biogenic amine-producing genes. Our investigation also unveiled the presence of three unannotated secondary metabolite biosynthetic gene clusters, as detected by the online tool antiSMASH, suggesting a great deal of unknown potential for this strain. Rigorous in vitro experiments confirmed tolerance of strain cqf-43 in the intestinal environment, its antimicrobial efficacy, sensitivity to antibiotics, absence of hemolysis and gelatinase activity, and its inability to produce biogenic amines. In addition, a 28-day oral toxicity test showed that the strain cqf-43 did not pose a health hazard in mice, further establishing it as a safe strain.
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Affiliation(s)
- Baiheng Liu
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- College of Animal Science and Technology, Southwest University, Chongqing 402460, China
| | - Xiaoxia Zhong
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- National Pig Technology Innovation Center, Chongqing 402460, China
| | - Zhiyun Liu
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- National Pig Technology Innovation Center, Chongqing 402460, China
| | - Xiaofeng Guan
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- National Pig Technology Innovation Center, Chongqing 402460, China
| | - Qi Wang
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- National Pig Technology Innovation Center, Chongqing 402460, China
| | - Renli Qi
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- National Pig Technology Innovation Center, Chongqing 402460, China
| | - Xiaorong Zhou
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- National Pig Technology Innovation Center, Chongqing 402460, China
| | - Jinxiu Huang
- Chongqing Academy of Animal Science, Chongqing 402460, China; (B.L.); (X.Z.); (Z.L.); (X.G.); (Q.W.); (R.Q.); (X.Z.)
- National Pig Technology Innovation Center, Chongqing 402460, China
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29
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Mousavi SM, Archangi B, Zamani I. Antibacterial Properties of Bacteriocin Purified from Serratia marcescens and Computerized Assessment of its Interaction with Antigen 43 in Escherichia coli. ARCHIVES OF RAZI INSTITUTE 2023; 78:1738-1745. [PMID: 38828162 PMCID: PMC11139391 DOI: 10.32592/ari.2023.78.6.2694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/06/2023] [Indexed: 06/05/2024]
Abstract
Bacteriocins are a kind of antimicrobial peptides that kill or inhibit the growth of bacterial strains. The purpose of this study was to investigate the antibacterial effect of Serratia marcescens on several pathogenic bacterial strains. Bacteriocin produced by S. marcescens was purified by chromatography with Sephadex G-75 column, and its antibacterial effect on gram-negative bacteria, including Escherichia coli ATCC 700928, Pseudomonas aeruginosa PTCC 1707, S. marcescens PTCC 1621, Vibrio fischeri PTCC 1693, and Vibrio harveyi PTCC 1755, were evaluated by the disk diffusion method. The structure of bacteriocin was determined by nuclear magnetic resonance spectroscopy. The interaction of bacteriocin with the antigen 43 (Ag43) of E. coli was evaluated by the molecular docking method. Bacteriocin extracted from bacterial isolates had antibacterial activity on E. coli strains but not on other studied strains. Bioinformatics analysis also showed bacteriocin docking with Ag43 with an energy of -159.968 kJ/mol. Natural compounds, such as bacteriocin, can be an alternative to common chemical compounds and antibiotics. To reach a definite conclusion in this regard, there is a need for further research and understanding of their mechanism of action.
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Affiliation(s)
- S M Mousavi
- Department of Marine Biotechnology, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran
| | - B Archangi
- Department of Marine Biotechnology, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran
| | - I Zamani
- Department of Marine Biotechnology, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran
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30
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Choi GH, Fugaban JII, Dioso CM, Bucheli JEV, Holzapfel WH, Todorov SD. Antimicrobial Peptides (Bacteriocins) Produced by Lactococcus lactis and Pediococcus pentosaceus Strains with Activity Against Clinical and Food-Borne Pathogens. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10188-x. [PMID: 38038837 DOI: 10.1007/s12602-023-10188-x] [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] [Accepted: 11/06/2023] [Indexed: 12/02/2023]
Abstract
Bacteriocins are ribosomal-synthesized peptides with antimicrobial activity, produced by different groups of bacteria, including lactic acid bacteria (LAB). Most of the produced by LAB bacteriocins can be described with rather broad spectra of inhibition and they offer suggested applications in food preservation and pharmaceutical sector. Different LAB were isolated from fermented food products and fruits, obtained from the region of Pohang, Korea, and identified based on physiological, biochemical, and molecular methods. The promising isolates, Pediococcus pentosaceus 732, Lactococcus lactis 808, and Lactococcus lactis subsp. lactis 431, were identified based on biochemical, physiological, and biomolecular approaches, including 16S rRNA partial sequencing, and were evaluated for production of bacteriocin, including stability in presence of enzymes, chemicals, pH, and temperatures. Adherence properties for the expressed bacteriocins by P. pentosaceus 732, Lc. lactis 808, and Lc. lactis subsp. lactis 431 were evaluated at presence of selected chemicals, pH, and temperatures. The presence of bacteriocin genes in the strains was investigated and analyzed. The bacterial effect of bacteriocin produced by studied strains on Listeria spp. and Staphylococcus spp. has been shown for actively growing and stationary cells. Similar growth and bacteriocin production were observed when studied strains were cultured in MRS at 30 °C or 37 °C. The presence of nisin operon with some point mutations on the genomic DNA was recorded based on the performed PCR reactions targeting different genes associated with nisin expression for both lactococcal strains. Pediocin PA-1 operon was evaluated in a similar manner for P. pentosaceus 732.
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Affiliation(s)
- Gee Hyeun Choi
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Joanna Ivy Irorita Fugaban
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
- National Food Institute, Technical University of Denmark, Kemitorvet, DK-2800, Kgs. Lyngby, Denmark
| | - Clarizza May Dioso
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
- Department of Molecular Biotechnology, Environmental Technology and Food Technology, Ghent University Global Campus, 119, Songdomunhawa-Ro, Yeonsu-Gu, Incheon, 21985, South Korea
| | - Jorge Enrique Vazquez Bucheli
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Wilhelm Heinrich Holzapfel
- HEM Laboratory, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Department of Advanced Convergence, Handong Global University, 37554, Pohang, Gyeongbuk, Republic of Korea.
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Instituto Politécnico de Viana Do Castelo, 4900-347, Viana Do Castelo, Portugal.
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31
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Khánh CM, Van Quyen D, Van TTH, Moore RJ. Heterologously expressed SacP23, a novel bacteriocin from Paenibacillus polymyxa #23, is active against methicillin resistant Staphylococcus aureus. ROYAL SOCIETY OPEN SCIENCE 2023; 10:231119. [PMID: 38126065 PMCID: PMC10731318 DOI: 10.1098/rsos.231119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023]
Abstract
Antimicrobial peptides have the potential to be used in a range of applications, including as an alternative to conventional antibiotics for the treatment of bacterial infections of humans and animals. Therefore, there is interest in identifying novel bacteriocins which have desirable physico-chemical properties or antimicrobial activities. Paenibacillus polymyxa #23, isolated from a marine sponge, has wide spectrum antimicrobial activity against Gram-negative and Gram-positive bacteria. To explore the basis of this antimicrobial activity, the complete genome sequence of the strain was examined. Multiple genes predicted to encode antimicrobial peptides were identified. One gene was predicted to encode a novel sactipeptide bacteriocin, named SacP23. To confirm that SacP23 does have antimicrobial activity and to explore the antimicrobial spectrum of the peptide it was heterologously expressed in Bacillus subtilis. A cluster of eight genes, encoding a full complement of accessory genes as well as the structural gene expressed from the native promoter, was cloned into B. subtilis BS54A. The recombinant strain displayed antimicrobial activity against several Gram-positive bacteria, including multi-drug resistant Staphylococcus aureus. Heterologous expression of a whole gene cluster offers a powerful way to interrogate and resolve the various antimicrobial activities expressed by native strains that encode multiple compounds of interest.
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Affiliation(s)
- Châu Minh Khánh
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia
- NhaTrang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, 02 Hung Vuong, Loc Tho, Nha Trang, Khanh Hoa, Vietnam
| | - Dong Van Quyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam
| | - Thi Thu Hao Van
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia
| | - Robert J. Moore
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia
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Promrug D, Wittayacom K, Nathapanan N, Dong HT, Thongyoo P, Unajak S, Reamtong O, Boonyuen U, Aroonnual A, Shioda T, Thirapanmethee K, Arthan D. Cocultures of Enterococcus faecium and Aeromonas veronii Induce the Secretion of Bacteriocin-like Substances against Aeromonas. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16194-16203. [PMID: 37779478 PMCID: PMC10623555 DOI: 10.1021/acs.jafc.3c04019] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/22/2023] [Accepted: 09/08/2023] [Indexed: 10/03/2023]
Abstract
Lactic acid bacteria (LAB) were screened from Lutjanus russellii (red sea bass), and their antimicrobial activities were evaluated against two Aeromonas species isolated from the Nile tilapia, namely, Aeromonas veronii (AV) and Aeromonas jandaei (AJ). Three LAB isolates, Enterococcus faecium MU8 (EF_8), Enterococcus faecalis MU2 (EFL_2), and E. faecalis MU9 (EFL_9), were found to inhibit both AV and AJ; however, their cell-free supernatant (CFS) did not do so. Interestingly, bacteriocin-like substances (BLS) induced by cocultures of EF_8 with AV exhibited the highest antimicrobial activity against both Aeromonas sp. The size of BLS was less than 1.0 kDa; the purified BLS were susceptible to proteinase K digestion, indicating that they are peptides. BLS contained 13 identified peptides derived from E. faecium, as determined by liquid chromatography-tandem mass spectrometry. Cocultures of Gram-positive-producing and -inducing LAB strains have been used to increase bacteriocin yields. To our knowledge, this is the first report describing inducible BLS produced by cocultures of Gram-positive-producing and Gram-negative-inducing strains.
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Affiliation(s)
- Dusit Promrug
- Department
of Tropical Nutrition and Food Science, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Kanjana Wittayacom
- Faculty
of Allied Health Science, Burapha University, 169 Long Had Bangsaen Rd, Saen Suk,
ChonBuri District, ChonBuri 20131, Thailand
| | - Nantipan Nathapanan
- Faculty
of Allied Health Science, Burapha University, 169 Long Had Bangsaen Rd, Saen Suk,
ChonBuri District, ChonBuri 20131, Thailand
| | - Ha Thanh Dong
- Aquaculture
and Aquatic Resources Program, Department of Food, Agriculture and
Bioresources, School of Environment, Resources and Development, Asian Institute of Technology, Khlong Nueng 12120, Thailand
| | - Panumart Thongyoo
- Department
of Chemistry, Faculty of Science and Technology, Thammasat University, Phaholyothin Road, Klong Nung District, Klong
Luang, Phatum Thani 12120, Thailand
| | - Sasimanas Unajak
- Department
of Biochemistry, Faculty of Science, Kasetsat
University, Chatuchak, Bangkok 10903, Thailand
| | - Onrapak Reamtong
- Department
of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Usa Boonyuen
- Department
of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Amornrat Aroonnual
- Department
of Tropical Nutrition and Food Science, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Tatsuo Shioda
- Department
of Viral Infections, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-087, Japan
| | - Krit Thirapanmethee
- Department
of Microbiology, Faculty of Pharmacy, Mahidol
University. 447 Sri-Ayuthaya, Rajathevi, Bangkok 10400, Thailand
| | - Dumrongkiet Arthan
- Department
of Tropical Nutrition and Food Science, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
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Fernández-Fernández R, Lozano C, Fernández-Pérez R, Zarazaga M, Peschel A, Krismer B, Torres C. Detection and evaluation of the antimicrobial activity of Micrococcin P1 isolated from commensal and environmental staphylococcal isolates against MRSA. Int J Antimicrob Agents 2023; 62:106965. [PMID: 37716578 DOI: 10.1016/j.ijantimicag.2023.106965] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 08/12/2023] [Accepted: 09/03/2023] [Indexed: 09/18/2023]
Abstract
BACKGROUND Bacteriocins (of different origins) have been proposed as promising alternatives to face antimicrobial resistance-associated health problems. Isolates of the Staphylococcus genus are well-known bacteriocin producers, especially coagulase-negative species. METHODS Twenty-eight bacteriocin-producing staphylococcal isolates were selected from a previous study for in-depth characterisation. The antimicrobial activities (AA) of the producing isolates were studied by the spot-on-lawn method and their crude cell-free supernatants (CFS) and butanol extracts (BT) were evaluated by agar diffusion assays against six indicator bacteria, including multidrug-resistant and zoonotic isolates (such as Listeria monocytogenes or methicillin-resistant Staphylococcus aureus [MRSA]). RESULTS Six bacteriocin-producing isolates showed AA in their CFS, whereas all staphylococcal BT extracts inhibited at least one of the tested indicator bacteria. Micrococcin P1 (MP1) bacteriocin was detected by mass spectrometry in four producing isolates: Staphylococcus aureus-C5802, Staphylococcus hominis-C5835, Staphylococcus sciuri-X3041, and -X3011. Growth curves performed with CFS and BT extracts of the four MP1 producers revealed a strong AA profile against MRSA and Listeria monocytogenes, even when considerably diluted. Moreover, synergism between the BT extract of MP1-producing Staphylococcus sciuri-X3041 and several antibiotics against an MRSA indicator was observed: BT-clindamycin (> 80%) and BT-oxacillin (30%) combinations. For the BT-chloramphenicol combination, synergism and near synergism values were observed in 37% of the combinations. Competition studies revealed potent inhibitory effects of the MP1-producing isolates against the MRSA indicator. CONCLUSION These results help to identify Staphylococcus isolates or their bacteriocins as interesting candidates for potential future applications.
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Affiliation(s)
- Rosa Fernández-Fernández
- University of La Rioja, Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, Logroño, Spain
| | - Carmen Lozano
- University of La Rioja, Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, Logroño, Spain
| | - Rocío Fernández-Pérez
- University of La Rioja, Instituto de Ciencias de la Vid y del Vino (ICVV), Logroño, Spain
| | - Myriam Zarazaga
- University of La Rioja, Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, Logroño, Spain
| | - Andreas Peschel
- University of Tübingen, Interfaculty Institute of Microbiology and Infection Medicine, Department of Infection Biology, Tübingen, Germany; Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, Tübingen, Germany; German Center for Infection Research (DZIF), partner site Tübingen, Tübingen, Germany
| | - Bernhard Krismer
- University of Tübingen, Interfaculty Institute of Microbiology and Infection Medicine, Department of Infection Biology, Tübingen, Germany; Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, Tübingen, Germany; German Center for Infection Research (DZIF), partner site Tübingen, Tübingen, Germany
| | - Carmen Torres
- University of La Rioja, Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, Logroño, Spain.
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Kumar G, Engle K. Natural products acting against S. aureus through membrane and cell wall disruption. Nat Prod Rep 2023; 40:1608-1646. [PMID: 37326041 DOI: 10.1039/d2np00084a] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Covering: 2015 to 2022Staphylococcus aureus (S. aureus) is responsible for several community and hospital-acquired infections with life-threatening complications such as bacteraemia, endocarditis, meningitis, liver abscess, and spinal cord epidural abscess. In recent decades, the abuse and misuse of antibiotics in humans, animals, plants, and fungi and the treatment of nonmicrobial diseases have led to the rapid emergence of multidrug-resistant pathogens. The bacterial wall is a complex structure consisting of the cell membrane, peptidoglycan cell wall, and various associated polymers. The enzymes involved in bacterial cell wall synthesis are established antibiotic targets and continue to be a central focus for antibiotic development. Natural products play a vital role in drug discovery and development. Importantly, natural products provide a starting point for active/lead compounds that sometimes need modification based on structural and biological properties to meet the drug criteria. Notably, microorganisms and plant metabolites have contributed as antibiotics for noninfectious diseases. In this study, we have summarized the recent advances in understanding the activity of the drugs or agents of natural origin that directly inhibit the bacterial membrane, membrane components, and membrane biosynthetic enzymes by targeting membrane-embedded proteins. We also discussed the unique aspects of the active mechanisms of established antibiotics or new agents.
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Affiliation(s)
- Gautam Kumar
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India.
| | - Kritika Engle
- Department of Natural Products, Chemical Sciences, National Institute of Pharmaceutical Education and Research-Hyderabad, Hyderabad, Balanagar, 500037, India.
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Renye JA, Mendez-Encinas MA, White AK, Miller AL, McAnulty MJ, Yadav MP, Hotchkiss AT, Guron GKP, Oest AM, Martinez-Robinson KG, Carvajal-Millan E. Antimicrobial activity of thermophilin 110 against the opportunistic pathogen Cutibacterium acnes. Biotechnol Lett 2023; 45:1365-1379. [PMID: 37606751 DOI: 10.1007/s10529-023-03419-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 07/13/2023] [Accepted: 07/19/2023] [Indexed: 08/23/2023]
Abstract
OBJECTIVE Thermophilin 110, a bacteriocin produced by Streptococcus thermophilus B59671, inhibited planktonic growth and biofilm formation of Cutibacterium acnes, a commensal skin bacterium associated with the inflammatory disease, acne vulgaris, and more invasive deep tissue infections. RESULTS Thermophilin 110 prevented planktonic growth of C. acnes at a concentration ≥ 160 AU mL-1; while concentrations ≥ 640 AU mL-1 resulted in a > 5 log reduction in viable planktonic cell counts and inhibited biofilm formation. Arabinoxylan (AX) and sodium alginate (SA) hydrogels were shown to encapsulate thermophilin 110, but as currently formulated, the encapsulated bacteriocin was unable to diffuse out of the gel and inhibit the growth of C. acnes. Hydrogels were also used to encapsulate S. thermophilus B59671, and inhibition zones were observed against C. acnes around intact SA gels, or S. thermophilus colonies that were released from AX gels. CONCLUSIONS Thermophilin 110 has potential as an antimicrobial for preventing C. acnes infections and further optimization of SA and AX gel formulations could allow them to serve as delivery systems for bacteriocins or bacteriocin-producing probiotics.
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Affiliation(s)
- John A Renye
- Dairy and Functional Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA.
| | - Mayra A Mendez-Encinas
- Department of Chemical Biological and Agropecuary Sciences, University of Sonora, Avenida Universidad e Irigoyen, S/N, 83621, Caborca, SON, Mexico
| | - Andre K White
- Dairy and Functional Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Amanda L Miller
- Dairy and Functional Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Michael J McAnulty
- Dairy and Functional Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Madhav P Yadav
- Sustainable Biofuels and Co-Products Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Arland T Hotchkiss
- Dairy and Functional Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Giselle K P Guron
- Dairy and Functional Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Adam M Oest
- Dairy and Functional Foods Research Unit, Agricultural Research Service, USDA, 600 E. Mermaid Lane, Wyndmoor, PA, 19038, USA
| | - Karla G Martinez-Robinson
- Research Center for Food and Development, A.C. Carretera Gustavo E. Astiazaran Rosas 46, 83304, Hermosillo, SON, Mexico
| | - Elizabeth Carvajal-Millan
- Research Center for Food and Development, A.C. Carretera Gustavo E. Astiazaran Rosas 46, 83304, Hermosillo, SON, Mexico
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Yu D, Pei Z, Chen Y, Wang H, Xiao Y, Zhang H, Chen W, Lu W. Bifidobacterium longum subsp. infantis as widespread bacteriocin gene clusters carrier stands out among the Bifidobacterium. Appl Environ Microbiol 2023; 89:e0097923. [PMID: 37681950 PMCID: PMC10537742 DOI: 10.1128/aem.00979-23] [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: 06/17/2023] [Accepted: 07/03/2023] [Indexed: 09/09/2023] Open
Abstract
Bifidobacterium is the dominant genus, particularly in the intestinal tract niche of healthy breast-fed infants, and many of these strains have been proven to elicit positive effects on infant development. In addition to its effective antimicrobial activity against detrimental microorganisms, it helps to improve the intestinal microbiota balance. The isolation and identification of bacteriocins from Bifidobacterium have been limited since the mid-1980s, leading to an underestimation of its ability for bacteriocin production. Here, we employed a silicon-based search strategy to mine 354 putative bacteriocin gene clusters (BGCs), most of which have never been reported, from the genomes of 759 Bifidobacterium strains distributed across 9 species. Consistent with previous reports, most Bifidobacterium strains did not carry or carry only a single BGC; however, Bifidobacterium longum subsp. infantis, in contrast to other Bifidobacterium species, carried numerous BGCs, including lanthipeptides, lasso peptides, thiopeptides, and class IId bacteriocins. The antimicrobial activity of the crude bacteriocins and transcription analysis confirmed its potential for bacteriocin biosynthesis. Additionally, we investigated the association of bacteriocins with the phylogenetic positions of their homologs from other genera and niches. In conclusion, this study re-examines a few Bifidobacterium species traditionally regarded as a poor source of bacteriocins. These bacteriocin genes impart a competitive advantage to Bifidobacterium in colonizing the infant intestinal tract. IMPORTANCE Development of the human gut microbiota commences from birth, with bifidobacteria being among the first colonizers of the newborn intestinal tract and dominating it for a considerable period. To date, the genetic basis for the successful adaptation of bifidobacteria to this particular niche remains unclear since studies have mainly focused on glycoside hydrolase and adhesion-related genes. Bacteriocins are competitive factors that help producers maintain colonization advantages without destroying the niche balance; however, they have rarely been reported in Bifidobacterium. The advancement in sequencing methods and bacteriocin databases enables the use of a silicon-based search strategy for the comprehensive and rapid re-evaluation of the bacteriocin distribution of Bifidobacterium. Our study revealed that B. infantis carries abundant bacteriocin biosynthetic gene clusters for the first time, presenting new evidence regarding the competitive interactions of Bifidobacterium in the infant intestinal tract.
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Affiliation(s)
- Di Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Zhangming Pei
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yutao Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Hongchao Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yue Xiao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Chen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China
| | - Wenwei Lu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China
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37
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Ramos ETDA, Olivares FL, da Rocha LO, da Silva RF, do Carmo MGF, Lopes MTG, Meneses CHSG, Vidal MS, Baldani JI. The Effects of Gluconacin on Bacterial Tomato Pathogens and Protection against Xanthomonas perforans, the Causal Agent of Bacterial Spot Disease. PLANTS (BASEL, SWITZERLAND) 2023; 12:3208. [PMID: 37765372 PMCID: PMC10535834 DOI: 10.3390/plants12183208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
As agricultural practices become more sustainable, adopting more sustainable practices will become even more relevant. Searching for alternatives to chemical compounds has been the focus of numerous studies, and bacteriocins are tools with intrinsic biotechnological potential for controlling plant diseases. We continued to explore the biotechnological activity of the bacteriocin Gluconacin from Gluconacetobacter diazotrophicus, PAL5 strain, by investigating this protein's antagonism against important tomato phytopathogens and demonstrating its effectiveness in reducing bacterial spots caused by Xanthomonas perforans. In addition to this pathogen, the bacteriocin Gluconacin demonstrated bactericidal activity in vitro against Ralstonia solanacearum and Pseudomonas syringae pv. tomato, agents that cause bacterial wilt and bacterial spots, respectively. Bacterial spot control tests showed that Gluconacin reduced disease severity by more than 66%, highlighting the biotechnological value of this peptide in ecologically correct formulations.
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Affiliation(s)
- Elizabeth Teixeira de Almeida Ramos
- Programa de Pós-Graduação em Fitotecnia (PPGF), Departamento de Fitotecnia, Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, km 07, Seropédica 23890-000, RJ, Brazil; (E.T.d.A.R.); (M.G.F.d.C.)
| | - Fábio Lopes Olivares
- Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura, Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes 28013-602, RJ, Brazil; (F.L.O.); (L.O.d.R.)
| | - Letícia Oliveira da Rocha
- Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura, Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes 28013-602, RJ, Brazil; (F.L.O.); (L.O.d.R.)
| | - Rogério Freire da Silva
- Programa de Pós-Graduação em Ciências Agrárias, Centro de Ciências Biológicas e da Saúde, Departamento de Biologia, Universidade Estadual da Paraíba, Universitário, Campina Grande 58429-500, PB, Brazil; (R.F.d.S.); (C.H.S.G.M.)
| | - Margarida Goréte Ferreira do Carmo
- Programa de Pós-Graduação em Fitotecnia (PPGF), Departamento de Fitotecnia, Instituto de Agronomia, Universidade Federal Rural do Rio de Janeiro, Rodovia BR 465, km 07, Seropédica 23890-000, RJ, Brazil; (E.T.d.A.R.); (M.G.F.d.C.)
| | - Maria Teresa Gomes Lopes
- Faculdade de Ciências Agrárias, Universidade Federal do Amazonas, Avenida Rodrigo Otávio Ramos, 3.000, Bairro Coroado, Manaus 69077-000, AM, Brazil;
| | - Carlos Henrique Salvino Gadelha Meneses
- Programa de Pós-Graduação em Ciências Agrárias, Centro de Ciências Biológicas e da Saúde, Departamento de Biologia, Universidade Estadual da Paraíba, Universitário, Campina Grande 58429-500, PB, Brazil; (R.F.d.S.); (C.H.S.G.M.)
| | - Marcia Soares Vidal
- Embrapa Agrobiologia, Rodovia BR 465, km 07, Seropédica 23891-000, RJ, Brazil;
| | - José Ivo Baldani
- Embrapa Agrobiologia, Rodovia BR 465, km 07, Seropédica 23891-000, RJ, Brazil;
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38
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Choi GH, Holzapfel WH, Todorov SD. Diversity of the bacteriocins, their classification and potential applications in combat of antibiotic resistant and clinically relevant pathogens. Crit Rev Microbiol 2023; 49:578-597. [PMID: 35731254 DOI: 10.1080/1040841x.2022.2090227] [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: 02/27/2022] [Revised: 04/18/2022] [Accepted: 06/13/2022] [Indexed: 12/19/2022]
Abstract
There is almost a century since discovery of penicillin by Alexander Fleming, a century of enthusiasm, abuse, facing development of antibiotic-resistance and clear conclusion that the modern medicine needs a new type of antimicrobials. Bacteriocins produced by Gram-positive and Gram-negative bacteria, Archaea and Eukaryotes were widely explored as potential antimicrobials with several applications in food industry. In last two decades bacteriocins showed their potential as promising alternative therapeutic for the treatment of antibiotic-resistant pathogens. Bacteriocins can be characterised as highly selective antimicrobials and therapeutics with low cytotoxicity. Most probably in order to solve the problems associated with the increasing number of antibiotic-resistant bacteria, the application of natural or bioengineered bacteriocins in addition to synergistically acting preparations of bacteriocins and conventional antibiotics, can be the next step in combat versus drug-resistant pathogens. In this overview we focussed on diversity of specific lactic acid bacteria and their bacteriocins. Moreover, some additional examples of bacteriocins from non-lactic acid, Gram-positive and Gram-negative bacteria, Archaea and eukaryotic organisms are presented and discussed. Therapeutic properties of bacteriocins, their bioengineering and combined applications, together with conventional antibiotics, were evaluated with the scope of application in human and veterinary medicine for combating (multi-)drug-resistant pathogens.
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Affiliation(s)
- Gee-Hyeun Choi
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Republic of Korea
| | - Wilhelm Heinrich Holzapfel
- Human Effective Microbes, Department of Advanced Convergence, Handong Global University, Pohang, Republic of Korea
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Fusco A, Savio V, Chiaromonte A, Alfano A, D’Ambrosio S, Cimini D, Donnarumma G. Evaluation of Different Activity of Lactobacillus spp. against Two Proteus mirabilis Isolated Clinical Strains in Different Anatomical Sites In Vitro: An Explorative Study to Improve the Therapeutic Approach. Microorganisms 2023; 11:2201. [PMID: 37764044 PMCID: PMC10534642 DOI: 10.3390/microorganisms11092201] [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: 07/30/2023] [Revised: 08/20/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Urinary tract infections (UTIs) and catheter-associated UTIs (CAUTIs) are the principal hospital-acquired infections. Between these, bacterial prostatitis is believed to be the leading cause of recurrent UTIs in men under 50 years of age and is often unresponsive to antibiotic treatment. Proteus mirabilis is more commonly associated with UTIs in these abnormalities, especially in patients undergoing catheterization. Lactobacillus spp. are an important component of the human microbiota and occur in large quantities in foods. Probiotics are proposed as an alternative to antibiotic therapy in the treatment of urinary tract infections. In addition to their ability to produce antimicrobial metabolites, they have immunomodulatory activity and do not cause side effects. For this reason, the combination of probiotic microorganisms and conventional drugs was considered. The aim of this work was to select the most active Lactobacillus strains against two clinical isolates of P. mirabilis on bladder and prostatic epithelium, potentially exploitable to improve the clinical management of UTIs.
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Affiliation(s)
- Alessandra Fusco
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (V.S.); (A.C.); (A.A.); (D.C.)
| | | | | | | | | | | | - Giovanna Donnarumma
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (V.S.); (A.C.); (A.A.); (D.C.)
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40
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Xia T, Teng K, Liu Y, Guo Y, Huang F, Tahir M, Wang T, Zhong J. A Novel Two-Component Bacteriocin, Acidicin P, and Its Key Residues for Inhibiting Listeria monocytogenes by Targeting the Cell Membrane. Microbiol Spectr 2023; 11:e0521022. [PMID: 37289056 PMCID: PMC10434283 DOI: 10.1128/spectrum.05210-22] [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: 12/19/2022] [Accepted: 05/18/2023] [Indexed: 06/09/2023] Open
Abstract
Listeria monocytogenes is an important pathogen which easily contaminates food and causes fatal systemic infections in human. Bacteriocins have received much attention regarding their natural methods of controlling health-related pathogens. Here, we investigated and characterized a novel two-component bacteriocin named acidicin P from Pediococcus acidilactici LAC5-17. Acidicin P showed obvious antimicrobial activity to L. monocytogenes. Through a sequence similarity network analysis for two-component bacteriocin precursors mined in the RefSeq database, acidicin P was observed to belong to an unusual group of two-component bacteriocins. Acidicin P contains two peptides designated Adpα and Adpβ which are assessed to interact with each other and form a helical dimer structure which can be inserted into the lipid bilayer of target cell membrane. We demonstrate that A5, N7, and G9 in the A5xxxG9 motif of Adpα and S16, R19, and G20 in the S16xxxG20 motif of Adpβ played crucial roles in stabilizing the helix-helix interaction of Adpα and Adpβ and were essential for the antilisterial activity of acidicin P by site-directed mutagenesis. A positive residue, R14, in Adpα and a negative residue, D12, in Adpβ are also important for acidicin P to fight against L. monocytogenes. These key residues are supposed to form hydrogen bonding, which is crucial for the interaction of Adpα and Adpβ. Furthermore, acidicin P induces severe permeabilization and depolarization of the cytoplasmic membrane and causes dramatic changes in L. monocytogenes cell morphology and ultrastructure. Acidicin P has the potential to be applied to inhibit L. monocytogenes efficiently both in the food industry and medical treatments. IMPORTANCE L. monocytogenes can cause widespread food contamination and severe human listeriosis, which amount to a large proportion of the public health and economic burdens. Today, L. monocytogenes is usually treated with chemical compounds in the food industry or antibiotics for human listeriosis. Natural and safe antilisterial agents are urgently required. Bacteriocins are natural antimicrobial peptides that have comparable narrow antimicrobial spectra and are attractive potentials for precision therapy for pathogen infection. In this work, we discover a novel two-component bacteriocin designated acidicin P, which shows obvious antilisterial activity. We also identify the key residues in both peptides of acidicin P and demonstrate that acidicin P is inserted into the target cell membrane and disrupts the cell envelop to inhibit the growth of L. monocytogenes. We believe that acidicin P is a promising lead for further development as an antilisterial drug.
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Affiliation(s)
- Tianqi Xia
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Kunling Teng
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yayong Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Yaoqi Guo
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Fuqing Huang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Muhammad Tahir
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Tianwei Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Jin Zhong
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- School of Life Science, University of Chinese Academy of Sciences, Beijing, China
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Rwubuzizi R, Carneiro KO, Holzapfel WH, Vaz-Velho M, Todorov SD. Bacteriocin and Antioxidant Production, a Beneficial Properties of Lactic Acid Bacteria Isolated from Fermented Vegetables of Northwest Bulgaria. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10140-z. [PMID: 37589786 DOI: 10.1007/s12602-023-10140-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 08/18/2023]
Abstract
Lactiplantibacillus plantarum ST01BG, ST07BG, ST10BG, and ST15BG; Latilactobacillus curvatus ST02BG; Lacticaseibacillus paracasei ST04BG; Pediococcus pentosaceus ST05BG; Leuconostoc mesenteroides ST06BG; and Enterococcus faecium ST11BG were isolated from home-made fermented vegetables from Northwest Bulgaria and identified by biochemical, physiological, and biomolecular analyses, including partial 16S rRNA sequencing. The strains were designated as bacteriocin producers and the expressed antimicrobials partially characterized with a focus on their proteinaceous nature, stability to different pH and temperatures. The bacteriocins were effective in inhibiting different strains of Listeria spp., Enterococcus spp. (including vancomycin resistant enterococci) and Staphylococcus spp. These strains can be considered safe, based on the evaluation of hemolytic activity, production of biogenic amines, mucin degradation, antibiotic susceptibility/resistance, and gelatinase enzyme production. Moreover, the strains can be considered potentially beneficial based on their stability and survival under simulated gastrointestinal tract conditions (stomach and duodenum), the production of diacetyl, and specific levels of hydrophobicity. Special attention was given to antioxidant properties (DPPH radical, hydroxyl radical, superoxide anion radical scavenging activity, Fe+2 ion chelating activity, and anti-lipid peroxidation) of the strains. Antioxidant properties were found to be strain specific. The beneficial attributes (antimicrobial and antioxidant) of these cultures to fermented food products may enable the reduction of chemical additives in line with consumers' demand for more natural and chemical-free food commodities.
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Affiliation(s)
- Ronaldo Rwubuzizi
- ProBacLab, Department of Advanced Convergence, Handong Global University, Gyeongbuk , 37554, Pohang, Republic of Korea
| | - Kayque Ordonho Carneiro
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Wilhelm Heinrich Holzapfel
- Human Effective Microbes, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, South Korea
| | - Manuela Vaz-Velho
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Escola Superior de Tecnologia e Gestão, Instituto Politécnico de Viana do Castelo, Viana do Castelo, Portugal
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Department of Advanced Convergence, Handong Global University, Gyeongbuk , 37554, Pohang, Republic of Korea.
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Escola Superior de Tecnologia e Gestão, Instituto Politécnico de Viana do Castelo, Viana do Castelo, Portugal.
- Food Research Center (FoRC), Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil.
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Groah SL, Rounds AK, Pérez-Losada M. Intravesical Lactobacillus rhamnosus GG Alters Urobiome Composition and Diversity Among People With Neurogenic Lower Urinary Tract Dysfunction. Top Spinal Cord Inj Rehabil 2023; 29:44-57. [PMID: 38076286 PMCID: PMC10644857 DOI: 10.46292/sci23-00004] [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] [Indexed: 12/18/2023]
Abstract
Background Neurogenic bladder is associated with bacterial colonization and frequent urinary tract infections. Objectives To explore the effects of one to two doses of intravesical Lactobacillus rhamnosus GG (LGG) on the urobiomes of adults with spinal cord injury/disease (SCI/D) who manage their bladders with intermittent catheterization (IC). Methods This was a pilot substudy within an 18-month phase 1 clinical trial of self-instilled intravesical LGG for urinary symptoms as directed by the Self-Management Protocol using Probiotics (SMP-Pro). Urine samples were collected monthly when participants were asymptomatic. When SMP-Pro "trigger" symptoms (cloudier and/or more foul-smelling urine) occurred, urine samples were collected immediately pre-LGG instillation and 24 to 48 hours after LGG instillation. Urine was collected via a new catheter, immediately placed on ice/freezer, and processed within 12 hours. Genomic DNA was isolated, and the V4 region of the 16S rRNA bacterial gene was amplified and high throughput sequenced. Amplicon sequence variants were inferred and bacterial composition, community structure, and variation across clinical phenotypes were determined. Results 126 urine samples were collected from 26 participants (SCI/D = 23; multiple sclerosis = 2; spina bifida = 1) between 20 and 57 years of age. The urobiomes were characterized by four dominant phyla (>1%): Bacteroidetes, Firmicutes, Proteobacteria, and Actinobacteria, which were comprised of six dominant genera (>3%): Escherichia/Shigella (29.1%), Klebsiella (22.4%), Proteus (15.2%), Aerococcus (6.3%), Streptococcus (6.0%), and Pluralibacter (3.0%). Post-LGG samples were associated with a decline in Escherichia/Shigella predominance (p < .001) and altered bacterial diversity (p < .05). Conclusion Among people with SCI/D who use IC, intravesical LGG alters the bacterial composition and diversity of the urine ecosystem, potentially disrupting the uropathogenic urobiome.
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Affiliation(s)
- Suzanne L. Groah
- MedStar National Rehabilitation Hospital, Washington, DC
- MedStar Georgetown University Hospital, Washington, DC
| | - Amanda K. Rounds
- MedStar National Rehabilitation Hospital, Washington, DC
- MedStar Health Research Institute, Hyattsville, Maryland
| | - Marcos Pérez-Losada
- Computational Biology Institute, Department of Biostatistics & Bioinformatics, Milken Institute School of Public Health, The George Washington University, Washington, DC
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43
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Guryanova SV. Immunomodulation, Bioavailability and Safety of Bacteriocins. Life (Basel) 2023; 13:1521. [PMID: 37511896 PMCID: PMC10381439 DOI: 10.3390/life13071521] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/01/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
The rise of antibiotic-resistant bacteria and the emergence of new pathogens have created a need for new strategies to fight against infectious diseases. One promising approach is the use of antimicrobial peptides produced by a certain species of bacteria, known as bacteriocins, which are active against other strains of the same or related species. Bacteriocins can help in the treatment and prevention of infectious diseases. Moreover, bacteriocins can be obtained in prokaryotic organisms, and contribute s to their widespread use. While the use of bacteriocins is currently limited to the food industry (for example, nisin is used as a preservative, E234), a large number of studies on their microbicidal properties suggest that their use in medicine may increase in the foreseeable future. However, for the successful use of bacteriocins in medicine, it is necessary to understand their effect on the immune system, especially in cases where immunity is weakened due to infectious processes, oncological, allergic, or autoimmune diseases. Studies on the immuno-modulatory activity of bacteriocins in animal models and human cells have revealed their ability to induce both pro-inflammatory and anti-inflammatory factors involved in the implementation of innate immunity. The influence of bacteriocins on acquired immunity is revealed by an increase in the number of T-lymphocytes with a simultaneous decrease in B-lymphocyte levels, which makes them attractive substances for reducing inflammation. The widespread use of bacteriocins in the food industry, their low toxicity, and their broad and narrow specificity are reasons for researchers to pay attention to their immunomodulatory properties and explore their medical applications. Inflammation regulation by bacteriocins can be used in the treatment of various pathologies. The aim of the review was to analyze scientific publications on the immunomodulatory activity, bioavailability, and safety of bacteriocins in order to use the data obtained to organize preclinical and clinical studies.
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Affiliation(s)
- Svetlana V Guryanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Medical Institute, Peoples' Friendship University of Russia (RUDN University) of the Ministry of Science and Higher Education of the Russian Federation, 117198 Moscow, Russia
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44
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Combating food spoilage and pathogenic microbes via bacteriocins: A natural and eco-friendly substitute to antibiotics. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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45
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Ye J, Fugaban JII, Dioso CM, Vazquez Bucheli JE, Choi GH, Kim B, Holzapfel WH, Todorov SD. Bacillus Strains Isolated from Korean Fermented Food Products with Antimicrobial Activity Against Staphylococci, an Alternative for Control of Antibiotic-Resistant Pathogens. Foodborne Pathog Dis 2023; 20:279-293. [PMID: 37366658 DOI: 10.1089/fpd.2023.0019] [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] [Indexed: 06/28/2023] Open
Abstract
Multidrug resistance in foodborne and clinical pathogens is a worldwide health problem. The urgent need for new alternatives to the existing antibiotics is emerging. Bacteriocin-like inhibitory substances can be considered part of the new generation of antimicrobials, which can be potentially applied in the food industry and health care practices. This study aimed to select Bacillus strains with antimicrobial activity against Staphylococcus spp. with future application in the formulation of pharmaceutical antimicrobial preparations. Putative antimicrobial agent-producing strains, previously isolated and preidentified as Bacillus spp. were profiled by repetitive element sequence-based polymerase chain reaction (rep-PCR) and 16s rRNA sequencing identified the strains as Bacillus tequilensis ST1962CD with 99.47% identity confidence and as Bacillus subtilis subsp. stercoris ST2056CD with 98.45% identity confidence. Both the selected Bacillus strains were evaluated via biomolecular and physiological approaches related to their safety and virulence, beneficial properties, enzyme production profile, and presence of corresponding genes for the production of antimicrobials and virulence. Both strains were confirmed to harbor srfa and sbo genes and be free of hemolysin binding component (B) and two lytic components (L1 and L2) [BL] and nonhemolytic enterotoxin-associated genes. Produced antimicrobial agents by strains ST1962CD and ST2056CD were partially purified through the combination of ammonium sulfate precipitation and hydrophobic-based chromatography on SepPakC18 and evaluated regarding their cytotoxicity. The dynamics of bacterial growth, pH change, accumulation of produced antimicrobials, and the mode of action were evaluated. Obtained results were pointing to the potential application of safe B. tequilensis ST1962CD and B. subtilis subsp. stercoris ST2056CD strains as functional beneficial microbial cultures that are putative producers of surfactin and/or subtilosin, as potent antimicrobials, for the treatment of some staphylococcal-associated infections. Expressed antimicrobials were shown to be not cytotoxic, and appropriate biotechnological approaches need to be developed for cost-effective production, isolation, and purification of expressed antimicrobials by studied strains.
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Affiliation(s)
- Jeemin Ye
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
| | - Joanna Ivy Irorita Fugaban
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Clarizza May Dioso
- Institute of Biological Sciences, University of the Philippines Los Baños, Laguna, Philippines
| | | | - Gee-Hyeun Choi
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
| | - Bobae Kim
- HEM Pharma, Pohang, Republic of Korea
| | | | - Svetoslav Dimitrov Todorov
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Food Research Center (FoRC), Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, São Paulo, Brazil
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46
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Wang Z, Lu K, Liu X, Zhu Y, Liu C. Comparative Functional Genome Analysis Reveals the Habitat Adaptation and Biocontrol Characteristics of Plant Growth-Promoting Bacteria in NCBI Databases. Microbiol Spectr 2023; 11:e0500722. [PMID: 37098923 PMCID: PMC10269705 DOI: 10.1128/spectrum.05007-22] [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: 12/06/2022] [Accepted: 04/03/2023] [Indexed: 04/27/2023] Open
Abstract
Plant growth-promoting bacteria (PGPB) are a group of beneficial microorganisms that include 60 bacterial genera, such as Bacillus, Pseudomonas, and Burkholderia, which widely colonize plant leaves and soil, promote plant growth, and/or inhibit pathogen infection. However, the genetic factors underpinning adaptation of PGPB to plant leaves and soil remain poorly understood. In this study, we performed a comparative functional genome analysis approach to investigate the functional genes of 195 leaf-associated (LA) and 283 soil-associated (SA) PGPB strains and their roles in adapting to their environment, using 95 strains from other-associated (OA) environmental habitats with growth-promoting or antimicrobial functions as negative controls. Comparison analysis of the enrichment of nonredundant (NR) protein sequence databases showed that cytochrome P450, DNA repair, and motor chemotaxis genes were significantly enriched in LA PGPB strains related to environmental adaptation, while cell wall-degrading enzymes, TetR transcriptional regulatory factors, and sporulation-related genes were highly enriched in SA PGPB strains. Additionally, analysis of carbohydrate-active enzymes demonstrated that glycosyltransferases (GTs) and glycoside hydrolases (GHs) were abundant families in all PGPB strains, which is in favor of plant growth, and enriched in SA PGPB strains. Except for most Bacillus strains, SA PGPB genomes contained significantly more secondary metabolism clusters than LA PGPB. Most LA PGPB contained hormone biosynthesis genes, which may contribute to plant growth promotion, while SA PGPB harbored numerous carbohydrate and antibiotic metabolism genes. In summary, this study further deepens our understanding of the habitat adaptation and biocontrol characteristics of LA and SA PGPB strains. IMPORTANCE Plant growth-promoting bacteria (PGPB) are essential for the effectiveness of biocontrol agents in plant phyllosphere and rhizosphere. However, little is known about the ecological adaptation of PGPB to different habitats. In this study, comparative functional genome analysis of leaf-associated (LA), soil-associated (SA), and other-associated (OA) PGPB strains was performed. We found that genes related to the metabolism of hormones were enriched in LA PGPB. Carbohydrate and antibiotic metabolism genes were enriched in SA PGPB, which likely facilitated their adaptation to the plant growth environment. Our findings provide genetic insights on LA and SA PGPB strains' ecological adaptation and biocontrol characteristics.
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Affiliation(s)
- Zhen Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Kaiheng Lu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xuan Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Yuping Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Changhong Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
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47
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Farid N, Waheed A, Motwani S. Synthetic and natural antimicrobials as a control against food borne pathogens: A review. Heliyon 2023; 9:e17021. [PMID: 37484319 PMCID: PMC10361103 DOI: 10.1016/j.heliyon.2023.e17021] [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: 07/08/2022] [Revised: 05/28/2023] [Accepted: 06/04/2023] [Indexed: 07/25/2023] Open
Abstract
Food borne pathogens are one of the most common yet concerning cause of illnesses around the globe. These microbes invade the body via food items, through numerous mediums of contamination and it is impossible to completely eradicate these organisms from food. Extensive research has been made regarding their treatment. Unfortunately, the only available treatment currently is by antibiotics. Recent exponential increase in antibiotic resistance and the side effect of synthetic compounds have established a need for alternate therapies that could be utilized either on their own or along with antibiotics to provide protection against food-borne diseases. The aim of this review is to provide information regarding some common food borne diseases, their current and possible natural treatment. It will include details regarding some common foodborne pathogens, the disease they cause, prevalence, manifestations and treatment of the respective disease. Some natural modes of potential treatment will be summarized, which including phytochemicals, derived from plants either as crude extracts or as purified form and Bacteriocins as microbial based treatment, obtained from various types of bacteria. The paper will describe their mechanism of action, classification, susceptible organisms, some antimicrobial compounds and producing organisms, application in food systems and as potential treatment. Along with that, synthetic treatment i.e., antibiotics will be discussed including the first-line treatment of some common food borne infections, prevalence and mechanism of resistance against antibiotics in the pathogens.
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Affiliation(s)
- Neha Farid
- Corresponding author. Shaheed Zulfikar Ali Bhutto Institute of Science and Technology, Pakistan.
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Lin Y, Lu J, Yang Z, Wang T, Li H, Sha S, Liu Z, Zhao Y, Wang L. Comparative genomics reveals key molecular targets for mutant Pediococcus pentosaceus C23221 producing pediocin. Int J Biol Macromol 2023:125006. [PMID: 37224904 DOI: 10.1016/j.ijbiomac.2023.125006] [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: 04/23/2023] [Accepted: 05/19/2023] [Indexed: 05/26/2023]
Abstract
Listeria monocytogenes is a common microorganism that causes food spoilage. Pediocins are some biologically active peptides or proteins encoded by ribosomes, which have a strong antimicrobial activity against L. monocytogenes. In this study, the antimicrobial activity of previously isolated P. pentosaceus C-2-1 was enhanced by ultraviolet (UV) mutagenesis. A positive mutant strain P. pentosaceus C23221 was obtained after 8 rounds of UV irradiation with increased antimicrobial activity of 1448 IU/mL, which was 8.47 folds higher than that of wild-type C-2-1. The genome of strain C23221 and wild-type C-2-1 was compared with identify the key genes for higher activity. The genome of the mutant strain C23221 consists of a chromosome of 1,742,268 bp, with 2052 protein-coding genes, 4 rRNA operons, and 47 tRNA genes, which is 79,769 bp less than the original strain. Compared with strain C-2-1, a total of 19 deduced proteins involved in 47 genes are unique to C23221 analyzed by GO database; the specific ped gene related to bacteriocin biosynthesis were detected using antiSMASH in mutant C23221, indicating mutant C23221 produced a new bacteriocin under mutagenesis conditions. This study provides genetic basis for further constituting a rational strategy to genetically engineer wild-type C-2-1 into an overproducer.
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Affiliation(s)
- Yi Lin
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Jiawen Lu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Zilu Yang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Tianming Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Hongbiao Li
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Shenfei Sha
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China
| | - Yueliang Zhao
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation, Shanghai Ocean University, Shanghai 201306, China
| | - Liping Wang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
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Field D, Fernandez de Ullivarri M, Ross RP, Hill C. After a century of nisin research - where are we now? FEMS Microbiol Rev 2023; 47:fuad023. [PMID: 37300874 PMCID: PMC10257480 DOI: 10.1093/femsre/fuad023] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/13/2023] Open
Abstract
It is almost a century since nisin was discovered in fermented milk cultures, coincidentally in the same year that penicillin was first described. Over the last 100 years this small, highly modified pentacyclic peptide has not only found success in the food industry as a preservative but has also served as the paradigm for our understanding of the genetic organization, expression, and regulation of genes involved in lantibiotic biosynthesis-one of the few cases of extensive post-translation modification in prokaryotes. Recent developments in understanding the complex biosynthesis of nisin have shed light on the cellular location of the modification and transport machinery and the co-ordinated series of spatio-temporal events required to produce active nisin and provide resistance and immunity. The continued unearthing of new natural variants from within human and animal gastrointestinal tracts has sparked interest in the potential application of nisin to influence the microbiome, given the growing recognition of the role the gastrointestinal microbiota plays in health and disease. Moreover, interdisciplinary approaches have taken advantage of biotechnological advancements to bioengineer nisin to produce novel variants and expand nisin functionality for applications in the biomedical field. This review will discuss the latest progress in these aspects of nisin research.
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Affiliation(s)
- Des Field
- APC Microbiome Ireland, University College Cork,Western Road, Cork T12 YN60, Ireland
- School of Microbiology, University College Cork, College Road, Cork T12 YT20, Ireland
| | | | - R Paul Ross
- APC Microbiome Ireland, University College Cork,Western Road, Cork T12 YN60, Ireland
- School of Microbiology, University College Cork, College Road, Cork T12 YT20, Ireland
| | - Colin Hill
- APC Microbiome Ireland, University College Cork,Western Road, Cork T12 YN60, Ireland
- School of Microbiology, University College Cork, College Road, Cork T12 YT20, Ireland
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50
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Fernández-Fernández R, Lozano C, Reuben RC, Ruiz-Ripa L, Zarazaga M, Torres C. Comprehensive Approaches for the Search and Characterization of Staphylococcins. Microorganisms 2023; 11:1329. [PMID: 37317303 DOI: 10.3390/microorganisms11051329] [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: 04/04/2023] [Revised: 05/02/2023] [Accepted: 05/09/2023] [Indexed: 06/16/2023] Open
Abstract
Novel and sustainable approaches are required to curb the increasing threat of antimicrobial resistance (AMR). Within the last decades, antimicrobial peptides, especially bacteriocins, have received increased attention and are being explored as suitable alternatives to antibiotics. Bacteriocins are ribosomally synthesized antimicrobial peptides produced by bacteria as a self-preservation method against competitors. Bacteriocins produced by Staphylococcus, also referred to as staphylococcins, have steadily shown great antimicrobial potential and are currently being considered promising candidates to mitigate the AMR menace. Moreover, several bacteriocin-producing Staphylococcus isolates of different species, especially coagulase-negative staphylococci (CoNS), have been described and are being targeted as a good alternative. This revision aims to help researchers in the search and characterization of staphylococcins, so we provide an up-to-date list of bacteriocin produced by Staphylococcus. Moreover, a universal nucleotide and amino acid-based phylogeny system of the well-characterized staphylococcins is proposed that could be of interest in the classification and search for these promising antimicrobials. Finally, we discuss the state of art of the staphylococcin applications and an overview of the emerging concerns.
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Affiliation(s)
- Rosa Fernández-Fernández
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006 Logroño, Spain
| | - Carmen Lozano
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006 Logroño, Spain
| | - Rine Christopher Reuben
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006 Logroño, Spain
| | - Laura Ruiz-Ripa
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006 Logroño, Spain
| | - Myriam Zarazaga
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006 Logroño, Spain
| | - Carmen Torres
- Area of Biochemistry and Molecular Biology, OneHealth-UR Research Group, University of La Rioja, 26006 Logroño, Spain
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