151
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Leech J, Cabrera-Rubio R, Walsh AM, Macori G, Walsh CJ, Barton W, Finnegan L, Crispie F, O'Sullivan O, Claesson MJ, Cotter PD. Fermented-Food Metagenomics Reveals Substrate-Associated Differences in Taxonomy and Health-Associated and Antibiotic Resistance Determinants. mSystems 2020; 5:e00522-20. [PMID: 33172966 PMCID: PMC7657593 DOI: 10.1128/msystems.00522-20] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/21/2020] [Indexed: 02/07/2023] Open
Abstract
Fermented foods have been the focus of ever greater interest as a consequence of purported health benefits. Indeed, it has been suggested that consumption of these foods helps to address the negative consequences of "industrialization" of the human gut microbiota in Western society. However, as the mechanisms via which the microbes in fermented foods improve health are not understood, it is necessary to develop an understanding of the composition and functionality of the fermented-food microbiota to better harness desirable traits. Here, we considerably expand the understanding of fermented-food microbiomes by employing shotgun metagenomic sequencing to provide a comprehensive insight into the microbial composition, diversity, and functional potential (including antimicrobial resistance and carbohydrate-degrading and health-associated gene content) of a diverse range of 58 fermented foods from artisanal producers from a number of countries. Food type, i.e., dairy-, sugar-, or brine-type fermented foods, was the primary driver of microbial composition, with dairy foods found to have the lowest microbial diversity. From the combined data set, 127 high-quality metagenome-assembled genomes (MAGs), including 10 MAGs representing putatively novel species of Acetobacter, Acidisphaera, Gluconobacter, Companilactobacillus, Leuconostoc, and Rouxiella, were generated. Potential health promoting attributes were more common in fermented foods than nonfermented equivalents, with water kefirs, sauerkrauts, and kvasses containing the greatest numbers of potentially health-associated gene clusters. Ultimately, this study provides the most comprehensive insight into the microbiomes of fermented foods to date and yields novel information regarding their relative health-promoting potential.IMPORTANCE Fermented foods are regaining popularity worldwide due in part to a greater appreciation of the health benefits of these foods and the associated microorganisms. Here, we use state-of-the-art approaches to explore the microbiomes of 58 of these foods, identifying the factors that drive the microbial composition of these foods and potential functional benefits associated with these populations. Food type, i.e., dairy-, sugar-, or brine-type fermented foods, was the primary driver of microbial composition, with dairy foods found to have the lowest microbial diversity and, notably, potential health promoting attributes were more common in fermented foods than nonfermented equivalents. The information provided here will provide significant opportunities for the further optimization of fermented-food production and the harnessing of their health-promoting potential.
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Affiliation(s)
- John Leech
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Raul Cabrera-Rubio
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | | | - Guerrino Macori
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Calum J Walsh
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Wiley Barton
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
| | - Laura Finnegan
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Fiona Crispie
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Orla O'Sullivan
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Marcus J Claesson
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Paul D Cotter
- Teagasc Food Research Centre, Fermoy, Cork, Ireland
- APC Microbiome Institute, University College Cork, Cork, Ireland
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152
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Probiotic Potential and Gluten Hydrolysis Activity of Lactobacillus brevis KT16-2. Probiotics Antimicrob Proteins 2020; 13:720-733. [PMID: 33169341 DOI: 10.1007/s12602-020-09723-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2020] [Indexed: 01/09/2023]
Abstract
Celiac disease (CD) is a chronic autoimmune disease that occurs in genetically predisposed individuals. Gluten-hydrolyzing probiotic bacteria are promising for alleviating symptoms in individuals with CD. Therefore, in this study, the gluten hydrolysis ability and probiotic potential of Lact. brevis KT16-2 were determined. Lact. brevis KT16-2 formed proteolysis zones on gluten and gliadin agar plates, in which gluten and gliadin were used as the only nitrogen sources. SDS-PAGE analysis showed that Lact. brevis KT16-2 completely hydrolyzed peptides ranging from 28 to 66 kDa in 8 h. Then, the survival of the strain in bile salts, in simulated gastric juice and at low pH was determined. Additionally, the antioxidant and antimicrobial substance production, autoaggregation, hydrophobicity and antibiotic resistance of the strain were investigated. API-ZYM test kits were used to determine the enzymatic capacity of the strain. Lact. brevis KT16-2 had the ability to hydrolyze wheat gluten. It was able to survive in a broad pH range (pH 2-8), in bile salts (0.3-1%), and in simulated gastric juice. It had the ability to autoaggregate (59.4%), and the hydrophobicity (52.7%) of the strain was determined. In addition, this strain was capable of producing antimicrobial peptides against test bacteria, including antibiotic-resistant bacteria. Cell-free supernatants (CFS) of the strain had high antioxidant activity (DPPH-71.0% and ABTS-54.1%). The results of this study suggest that Lact. brevis KT16-2, which can hydrolyze gliadin and has many essential probiotic properties, has the potential to be used as a probiotic supplement for individuals with CD.
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153
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Ziese AL, Suchodolski JS. Impact of Changes in Gastrointestinal Microbiota in Canine and Feline Digestive Diseases. Vet Clin North Am Small Anim Pract 2020; 51:155-169. [PMID: 33131916 DOI: 10.1016/j.cvsm.2020.09.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The intestinal microbiome is an important immune and metabolic organ in health and disease. Recent molecular and metabolomic approaches have provided a better characterization of different types of dysbiosis, including mucosa-adherent bacteria and functional changes in the microbiome. This article summarizes recent advances in assessment of dysbiosis, the importance of the bile acid-converting Clostridium hiranonis as an important beneficial bacterium in the canine gut, and different therapeutic approaches to dysbiosis.
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Affiliation(s)
- Anna-Lena Ziese
- Clinic of Small Animal Medicine, Ludwig Maximilian University of Munich, Veterinärstrasse 13, Munich 80539, Germany
| | - Jan S Suchodolski
- Gastrointestinal Laboratory, College of Veterinary Medicine, Texas A&M University, 4474 TAMU, College Station, TX 77845, USA.
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154
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Teame T, Wang A, Xie M, Zhang Z, Yang Y, Ding Q, Gao C, Olsen RE, Ran C, Zhou Z. Paraprobiotics and Postbiotics of Probiotic Lactobacilli, Their Positive Effects on the Host and Action Mechanisms: A Review. Front Nutr 2020; 7:570344. [PMID: 33195367 PMCID: PMC7642493 DOI: 10.3389/fnut.2020.570344] [Citation(s) in RCA: 125] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/28/2020] [Indexed: 12/14/2022] Open
Abstract
Lactobacilli comprise an important group of probiotics for both human and animals. The emerging concern regarding safety problems associated with live microbial cells is enhancing the interest in using cell components and metabolites derived from probiotic strains. Here, we define cell structural components and metabolites of probiotic bacteria as paraprobiotics and postbiotics, respectively. Paraprobiotics and postbiotics produced from Lactobacilli consist of a wide range of molecules including peptidoglycans, surface proteins, cell wall polysaccharides, secreted proteins, bacteriocins, and organic acids, which mediate positive effect on the host, such as immunomodulatory, anti-tumor, antimicrobial, and barrier-preservation effects. In this review, we systematically summarize the paraprobiotics and postbiotics derived from Lactobacilli and their beneficial functions. We also discuss the mechanisms underlying their beneficial effects on the host, and their interaction with the host cells. This review may boost our understanding on the benefits and molecular mechanisms associated with paraprobiotics and probiotics from Lactobacilli, which may promote their applications in humans and animals.
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Affiliation(s)
- Tsegay Teame
- China-Norway Joint Lab on Fish Gastrointestinal Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Tigray Agricultural Research Institute, Mekelle, Ethiopia
| | - Anran Wang
- AgricultureIsLife/EnvironmentIsLife and Precision Livestock and Nutrition Unit, AgroBioChem/TERRA, Gembloux Agro-Bio Tech, University of Liege, Passage des Deportes, Gembloux, Belgium
| | - Mingxu Xie
- Norway-China Fish Gastrointestinal Microbiota Joint Lab, Institute of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Zhen Zhang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yalin Yang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qianwen Ding
- Norway-China Fish Gastrointestinal Microbiota Joint Lab, Institute of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Chenchen Gao
- China-Norway Joint Lab on Fish Gastrointestinal Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Rolf Erik Olsen
- Norway-China Fish Gastrointestinal Microbiota Joint Lab, Institute of Biology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Chao Ran
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture and Rural Affairs, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhigang Zhou
- China-Norway Joint Lab on Fish Gastrointestinal Microbiota, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
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155
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Ng ZJ, Zarin MA, Lee CK, Tan JS. Application of bacteriocins in food preservation and infectious disease treatment for humans and livestock: a review. RSC Adv 2020; 10:38937-38964. [PMID: 35518417 PMCID: PMC9057404 DOI: 10.1039/d0ra06161a] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022] Open
Abstract
Infectious diseases caused by bacteria that can be transmitted via food, livestock and humans are always a concern to the public, as majority of them may cause severe illnesses and death. Antibacterial agents have been investigated for the treatment of bacterial infections. Antibiotics are the most successful antibacterial agents that have been used widely for decades to ease human pain caused by bacterial infections. Nevertheless, the emergence of antibiotic-resistant bacteria has raised awareness amongst public about the downside of using antibiotics. The threat of antibiotic resistance to global health, food security and development has been emphasized by the World Health Organization (WHO), and research studies have been focused on alternative antimicrobial agents. Bacteriocin, a natural antimicrobial peptide, has been chosen to replace antibiotics for its application in food preservation and infectious disease treatment for livestock and humans, as it is less toxic.
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Affiliation(s)
- Zhang Jin Ng
- School of Industrial Technology, Universiti Sains Malaysia 11800 Gelugor Pulau Pinang Malaysia +604 6536375 +604 6536376
| | - Mazni Abu Zarin
- School of Industrial Technology, Universiti Sains Malaysia 11800 Gelugor Pulau Pinang Malaysia +604 6536375 +604 6536376
| | - Chee Keong Lee
- School of Industrial Technology, Universiti Sains Malaysia 11800 Gelugor Pulau Pinang Malaysia +604 6536375 +604 6536376
| | - Joo Shun Tan
- School of Industrial Technology, Universiti Sains Malaysia 11800 Gelugor Pulau Pinang Malaysia +604 6536375 +604 6536376
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156
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Sun X, Xu R, Dong Y, Li F, Tao W, Kong T, Zhang M, Qiu L, Wang X, Sun W. Investigation of the Ecological Roles of Putative Keystone Taxa during Tailing Revegetation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:11258-11270. [PMID: 32786562 DOI: 10.1021/acs.est.0c03031] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Metal contamination released from tailings is a global environmental concern. Although phytoremediation is a promising remediation method, its practice is often impeded by the adverse tailing geochemical conditions, which suppress biological activities. The ecosystem services provided by indigenous microorganisms could alter environmental conditions and facilitate revegetation in tailings. During the process, the keystone taxa of the microbial community are assumed an essential role in regulating the community composition and functions. The identity and the environmental functions of the keystone taxa during tailing revegetation, however, remain unelucidated. The current study compared the microbial community composition and interactions of two contrasting stibnite (Sb2S3) tailings, one revegetated and one unvegetated. The microbial interaction networks and keystone taxa were significantly different in the two tailings. Similar keystone taxa were also identified in other revegetated tailings, but not in their corresponding unvegetated tailings. Metagenome-assembled genomes (MAGs) indicated that the keystone taxa in the revegetated tailing may use both organic and inorganic energy sources (e.g., sulfur, arsenic, and antimony). They could also facilitate plant growth since a number of plant-growth-promoting genes, including phosphorus solubilization and siderophore production genes, were encoded. The current study suggests that keystone taxa may play important roles in tailing revegetation by providing nutrients, such as P and Fe, and promoting plant growth.
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Affiliation(s)
- Xiaoxu Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Rui Xu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Yiran Dong
- School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan 430074, China
| | - Fangbai Li
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Wan Tao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Tianle Kong
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Miaomiao Zhang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Lang Qiu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Xiaoyu Wang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
| | - Weimin Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou 510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou 510650, China
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157
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Novel Topical Application of a Postbiotic, LactoSporin®, in Mild to Moderate Acne: A Randomized, Comparative Clinical Study to Evaluate its Efficacy, Tolerability and Safety. COSMETICS 2020. [DOI: 10.3390/cosmetics7030070] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Acne vulgaris is a common skin disorder of pilosebaceous units. The therapy for mild-to-moderate acne includes topical antibiotics, benzoyl peroxide and retinoids. In this open-label, randomized monocentric study, we compared the efficacy of LactoSporin® 2% w/w cream with benzoyl peroxide in 64 male and female subjects with mild-to-moderate acne for three weeks. The efficacy parameters were evaluated based on the dermatologist visual assessment and instrumental measurements using Sebumeter® MPA580, Antera 3DTM and VISIA CR 2.2 and subject self-assessment questionnaires. Adverse events were recorded throughout the study period. In order to understand the mechanism of action and properties of LactoSporin, the pH stability, thermostability, antimicrobial activity and 5-alpha reductase activity were evaluated in vitro. A significant improvement was observed in the dermatological assessment of closed comedones (p < 0.0001), open comedones (p = 0.0069) and papules count (p < 0.0001) in comparison to the baseline in both LactoSporin and benzoyl peroxide groups. The antera analysis showed significant improvement in redness (p < 0.0001) and elevation (p < 0.0001) (small and medium) in both the treatment groups. The sebumeter analysis showed a significant decrease in sebaceous secretion (p < 0.0001) for LactoSporin, which resulted in reduced oiliness, pimples, acne spots and redness around the acne spot. The product was found to be safe without any irritancy. LactoSporin was stable at an acidic pH and temperature range of 70 to 90 °C, with antimicrobial activity against various pathogenic bacteria, including Cutibacterium acnes. It was also a potent inhibitor of 5-alpha reductase activity. Thus, it can be concluded that the efficacy of LactoSporin is equivalent to benzoyl peroxide in the treatment of mild-to-moderate acne lesions and better than benzoyl peroxide for reducing the sebaceous secretion and oily, greasy nature of the skin, implying its efficacy in other sebohorriec conditions.
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158
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Chen R, Wong HL, Kindler GS, MacLeod FI, Benaud N, Ferrari BC, Burns BP. Discovery of an Abundance of Biosynthetic Gene Clusters in Shark Bay Microbial Mats. Front Microbiol 2020; 11:1950. [PMID: 32973707 PMCID: PMC7472256 DOI: 10.3389/fmicb.2020.01950] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/24/2020] [Indexed: 01/27/2023] Open
Abstract
Microbial mats are geobiological multilayered ecosystems that have significant evolutionary value in understanding the evolution of early life on Earth. Shark Bay, Australia has some of the best examples of modern microbial mats thriving under harsh conditions of high temperatures, salinity, desiccation, and ultraviolet (UV) radiation. Microorganisms living in extreme ecosystems are thought to potentially encode for secondary metabolites as a survival strategy. Many secondary metabolites are natural products encoded by a grouping of genes known as biosynthetic gene clusters (BGCs). Natural products have diverse chemical structures and functions which provide competitive advantages for microorganisms and can also have biotechnology applications. In the present study, the diversity of BGC were described in detail for the first time from Shark Bay microbial mats. A total of 1477 BGCs were detected in metagenomic data over a 20 mm mat depth horizon, with the surface layer possessing over 200 BGCs and containing the highest relative abundance of BGCs of all mat layers. Terpene and bacteriocin BGCs were highly represented and their natural products are proposed to have important roles in ecosystem function in these mat systems. Interestingly, potentially novel BGCs were detected from Heimdallarchaeota and Lokiarchaeota, two evolutionarily significant archaeal phyla not previously known to possess BGCs. This study provides new insights into how secondary metabolites from BGCs may enable diverse microbial mat communities to adapt to extreme environments.
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Affiliation(s)
- Ray Chen
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Australian Centre for Astrobiology, University of New South Wales, Sydney, NSW, Australia
| | - Hon Lun Wong
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Australian Centre for Astrobiology, University of New South Wales, Sydney, NSW, Australia
| | - Gareth S Kindler
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Australian Centre for Astrobiology, University of New South Wales, Sydney, NSW, Australia
| | - Fraser Iain MacLeod
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Australian Centre for Astrobiology, University of New South Wales, Sydney, NSW, Australia
| | - Nicole Benaud
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Belinda C Ferrari
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Australian Centre for Astrobiology, University of New South Wales, Sydney, NSW, Australia
| | - Brendan P Burns
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia.,Australian Centre for Astrobiology, University of New South Wales, Sydney, NSW, Australia
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159
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Tiwari SK, Dicks LMT, Popov IV, Karaseva A, Ermakov AM, Suvorov A, Tagg JR, Weeks R, Chikindas ML. Probiotics at War Against Viruses: What Is Missing From the Picture? Front Microbiol 2020; 11:1877. [PMID: 32973697 PMCID: PMC7468459 DOI: 10.3389/fmicb.2020.01877] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/16/2020] [Indexed: 01/07/2023] Open
Abstract
Our world is now facing a multitude of novel infectious diseases. Bacterial infections are treated with antibiotics, albeit with increasing difficulty as many of the more common causes of infection have now developed broad spectrum antimicrobial resistance. However, there is now an even greater challenge from both old and new viruses capable of causing respiratory, enteric, and urogenital infections. Reports of viruses resistant to frontline therapeutic drugs are steadily increasing and there is an urgent need to develop novel antiviral agents. Although this all makes sense, it seems rather strange that relatively little attention has been given to the antiviral capabilities of probiotics. Over the years, beneficial strains of lactic acid bacteria (LAB) have been successfully used to treat gastrointestinal, oral, and vaginal infections, and some can also effect a reduction in serum cholesterol levels. Some probiotics prevent gastrointestinal dysbiosis and, by doing so, reduce the risk of developing secondary infections. Other probiotics exhibit anti-tumor and immunomodulating properties, and in some studies, antiviral activities have been reported for probiotic bacteria and/or their metabolites. Unfortunately, the mechanistic basis of the observed beneficial effects of probiotics in countering viral infections is sometimes unclear. Interestingly, in COVID-19 patients, a clear decrease has been observed in cell numbers of Lactobacillus and Bifidobacterium spp., both of which are common sources of intestinal probiotics. The present review, specifically motivated by the need to implement effective new counters to SARS-CoV-2, focusses attention on viruses capable of co-infecting humans and other animals and specifically explores the potential of probiotic bacteria and their metabolites to intervene with the process of virus infection. The goal is to help to provide a more informed background for the planning of future probiotic-based antiviral research.
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Affiliation(s)
- Santosh Kumar Tiwari
- Department of Genetics, Maharshi Dayanand University, Rohtak, India,*Correspondence: Santosh Kumar Tiwari,
| | - Leon M. T. Dicks
- Department of Microbiology, Stellenbosch University, Stellenbosch, South Africa
| | - Igor V. Popov
- Center for Agro-Biotechnology, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, Rostov-on-Don, Russia
| | - Alena Karaseva
- Institute of Experimental Medicine, Saint Petersburg, Russia
| | - Alexey M. Ermakov
- Center for Agro-Biotechnology, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, Rostov-on-Don, Russia
| | - Alexander Suvorov
- Institute of Experimental Medicine, Saint Petersburg, Russia,Saint Petersburg State University, Saint Petersburg, Russia
| | | | - Richard Weeks
- Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, Brunswick, NJ, United States
| | - Michael L. Chikindas
- Center for Agro-Biotechnology, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, Rostov-on-Don, Russia,Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, Brunswick, NJ, United States
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160
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Ebrahimi M, Sadeghi A, Rahimi D, Purabdolah H, Shahryari S. Postbiotic and Anti-aflatoxigenic Capabilities of Lactobacillus kunkeei as the Potential Probiotic LAB Isolated from the Natural Honey. Probiotics Antimicrob Proteins 2020; 13:343-355. [PMID: 32803518 DOI: 10.1007/s12602-020-09697-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The use of probiotic, postbiotic, and anti-aflatoxigenic capabilities of the lactic acid bacteria (LAB) isolated from stressful niches is a major strategy to prepare functional cultures and bio-preservatives for food industries. In the present study, abundant LAB strains isolated from natural honey were screened based on their tolerance to continuous pH and bile salt treatments. Then, the pro-functional properties of the selected LAB were investigated. In accordance with the screening data, a bacilli isolate was selected for further characterization. Sequencing results led to the identification of Lactobacillus kunkeei as the selected LAB isolate. In vitro antibacterial and antifungal activities of the LAB and in situ antifungal activity of the isolate cell-free supernatant (CFS) were verified against food-borne indicators. Accordingly, in vitro antibacterial and antifungal effects of Lact. kunkeei ENH01 on respective Escherichia coli and Aspergillus niger were significantly (P < 0.05) higher than the other indicators. Furthermore, in situ inhibitory effect of Lact. kunkeei CFS on Candida albicans (as the highest in situ effect) was equal to 76.36%. The presence of three antibacterial peptides was also verified in the Lact. kunkeei CFS according to the results of liquid chromatography mass spectrometry (LC/MS) assay. Antibiotic susceptibility profile and auto-aggregation ability of the isolate were noticeable. Anti-mycotoxigenic capabilities of Lact. kunkeei ENH01 as viable and heat-killed cells were also revealed against total aflatoxins according to the HPLC-based analysis. In vivo safety of the isolate was also attested through the evaluation of blood biochemistry and hematological parameters in the Lact. kunkeei ENH01 fed-mice compared with the control. Based on the findings, probiotic properties of Lact. kunkeei ENH01 and postbiotic capabilities of the isolate CFS and its heat-killed cells were approved.
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Affiliation(s)
- Maryam Ebrahimi
- Food, Drug & Natural Products Health Research Center, Golestan University of Medical Science, Gorgan, Iran
| | - Alireza Sadeghi
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
| | - Delasa Rahimi
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Hosein Purabdolah
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Sara Shahryari
- Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
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161
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Jiang T, Wu H, Yang X, Li Y, Zhang Z, Chen F, Zhao L, Zhang C. Lactobacillus Mucosae Strain Promoted by a High-Fiber Diet in Genetic Obese Child Alleviates Lipid Metabolism and Modifies Gut Microbiota in ApoE-/- Mice on a Western Diet. Microorganisms 2020; 8:microorganisms8081225. [PMID: 32806628 PMCID: PMC7464838 DOI: 10.3390/microorganisms8081225] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 12/20/2022] Open
Abstract
Supplementation of probiotics is a promising gut microbiota-targeted therapeutic method for hyperlipidemia and atherosclerosis. However, the selection of probiotic candidate strains is still empirical. Here, we obtained a human-derived strain, Lactobacillus mucosae A1, which was shown by metagenomic analysis to be promoted by a high-fiber diet and associated with the amelioration of host hyperlipidemia, and validated its effect on treating hyperlipidemia and atherosclerosis as well as changing structure of gut microbiota in ApoE-/- mice on a Western diet. L. mucosae A1 attenuated the severe lipid accumulation in serum, liver and aortic sinus of ApoE-/- mice on a Western diet, while it also reduced the serum lipopolysaccharide-binding protein content of mice, reflecting the improved metabolic endotoxemia. In addition, L. mucosae A1 shifted the gut microbiota structure of ApoE-/- mice on a Western diet, including recovering a few members of gut microbiota enhanced by the Western diet. This study not only suggests the potential of L. mucosae A1 to be a probiotic in the treatment of hyperlipidemia and atherosclerosis, but also highlights the advantage of such function-based rather than taxonomy-based strategies for the selection of candidate strains for the next generation probiotics.
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Affiliation(s)
- Tianyi Jiang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
| | - Huan Wu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
| | - Xin Yang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
| | - Yue Li
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
| | - Ziyi Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
| | - Feng Chen
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
| | - Liping Zhao
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
- Department of Biochemistry and Microbiology and New Jersey Institute for Food, Nutrition and Health, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ 08901, USA
| | - Chenhong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; (T.J.); (H.W.); (X.Y.); liyue-- (Y.L.); (Z.Z.); (F.C.); (L.Z.)
- Correspondence:
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Extensive bacteriocin gene shuffling in the Streptococcus bovis/Streptococcus equinus complex reveals gallocin D with activity against vancomycin resistant enterococci. Sci Rep 2020; 10:13431. [PMID: 32778686 PMCID: PMC7417737 DOI: 10.1038/s41598-020-70328-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/28/2020] [Indexed: 12/18/2022] Open
Abstract
Streptococcus gallolyticus LL009 produces gallocin D, a narrow spectrum two component bacteriocin with potent activity against vancomycin-resistant enterococci. Gallocin D is distinct from gallocin A, a separate two component bacteriocin produced by S. gallolyticus. Although the gene clusters encoding gallocin A and gallocin D have a high degree of gene synteny, the structural genes are highly variable and appear to have undergone gene shuffling with other streptococcal species. Gallocin D was analysed in laboratory-based experiments. The mature peptides are 3,343 ± 1 Da and 3,019 ± 1 Da and could be readily synthesized and display activity against a vancomycin resistant Enterococcus strain EC300 with a MIC value of 1.56 µM. Importantly, these bacteriocins could contribute to the ability of S. gallolyticus to colonize the colon where they have been associated with colorectal cancer.
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163
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Ciolfi S, Marri L. Dominant symbiotic bacteria associated with wild medfly populations reveal a bacteriocin-like killing phenotype: a 'cold-case' study. BULLETIN OF ENTOMOLOGICAL RESEARCH 2020; 110:457-462. [PMID: 31813393 DOI: 10.1017/s0007485319000816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The gut of the agricultural pest Ceratitis capitata hosts a varied community of bacteria, mainly Enterobacteriaceae, that were implicated in several processes that increase the fitness of the insect. In this study, we investigated the antagonistic activity in vitro of Klebsiella oxytoca strains isolated in the 1990s from the alimentary tract of wild medflies collected from different varieties of fruit trees at diverse localities. Assays were carried out against reference strains (representative of Gram-negative and -positive bacterial species) of the American Type Culture Collection (ATCC). Eight Klebsiella, out of 11, expressed a killing activity against Escherichia coli ATCC 23739, and Enterobacter cloacae ATCC 13047; among the eight strains, at least one showed activity against Salmonella typhimurium ATCC 23853. Genomic DNA derived from all Klebsiella strains was then subjected to PCR amplification using specific primer pairs designed from each of the four bacteriocin (KlebB, C, D, CCL) sequences found so far in Klebsiella. KlebD primer pairs were the only to produce a single product for all strains expressing the killing phenotype in vitro. One of the amplicons was cloned and sequenced; the DNA sequence shows 93% identity with a plasmid-carried colicin-D gene of a strain of Klebsiella michiganensis, and 86% identity with the sequence encoding for the klebicin D activity protein in K. oxytoca. Our work provides the first evidence that dominant symbiotic bacteria associated with wild medfly populations express a killing phenotype that may mediate inter and intraspecies competition among bacterial populations in the insect gut in vivo.
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Affiliation(s)
- Silvia Ciolfi
- Department of Life Sciences, via A. Moro 2, University of Siena, Siena-53100, Italy
| | - Laura Marri
- Department of Life Sciences, via A. Moro 2, University of Siena, Siena-53100, Italy
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164
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Falasca F, Cavallari EN, Innocenti GP, Scagnolari C, Mezzaroma I, Santinelli L, Ceccarelli G, Vullo V, Turriziani O, d'Ettorre G. Antiviral Activity of Fecal Water Samples from HIV-1 Infected Subjects Treated with a Specific Probiotic Formulation. Curr HIV Res 2020; 17:183-189. [PMID: 31490760 DOI: 10.2174/1570162x17666190903230622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/11/2019] [Accepted: 08/21/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVES The aim of the study was to investigate if the supplementation with multistrain probiotics may be able to modulate T cell response in HIV-1 infected patients and to evaluate the anti-HIV activity of probiotic by studying fecal water (FW) samples. METHODS Three HIV-1-positive patients (Pt1, Pt2 and Pt3) on long-term suppressive combined antiretroviral therapy (cART) received a specific multi-strain probiotic supplementation (Vivomixx ®), for six months (T6). Levels of T cell subsets were evaluated by flow cytometry. Anti- HIV activity of FW samples was evaluated in vitro. RESULTS CD4+ T cells levels increased in all HIV-1 infected patients whereas activation markers (CD38 and HLA-DR) were decreased both on CD4+ and CD8+ T cells. FW samples presented an increased inhibitory activity against HIV-1 compared to T0 (FW-Pt1: T0 =40%, T6 = 65% of reduction; FW Pt2: T0 = 26%, T6 = 46% of reduction; FW Pt3: T0 = 47%, T6 = 94% of reduction). DISCUSSION Our data suggest that the administration of the specific probiotic formulation improves the antiviral status of people living with HIV-1 under cART, also modulating T cell response. CONCLUSION Anti-HIV activity of FW may have several public health and social implications for sexually transmitted diseases that need to be further explored.
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Affiliation(s)
- Francesca Falasca
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | | | | | - Ivano Mezzaroma
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Letizia Santinelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Giancarlo Ceccarelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy.,Azienda Policlinico Umberto I, Rome, Italy
| | - Vincenzo Vullo
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | | | - Gabriella d'Ettorre
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
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165
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De Filippis F, Pasolli E, Ercolini D. The food-gut axis: lactic acid bacteria and their link to food, the gut microbiome and human health. FEMS Microbiol Rev 2020; 44:454-489. [PMID: 32556166 PMCID: PMC7391071 DOI: 10.1093/femsre/fuaa015] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/20/2020] [Indexed: 12/18/2022] Open
Abstract
Lactic acid bacteria (LAB) are present in foods, the environment and the animal gut, although fermented foods (FFs) are recognized as the primary niche of LAB activity. Several LAB strains have been studied for their health-promoting properties and are employed as probiotics. FFs are recognized for their potential beneficial effects, which we review in this article. They are also an important source of LAB, which are ingested daily upon FF consumption. In this review, we describe the diversity of LAB and their occurrence in food as well as the gut microbiome. We discuss the opportunities to study LAB diversity and functional properties by considering the availability of both genomic and metagenomic data in public repositories, as well as the different latest computational tools for data analysis. In addition, we discuss the role of LAB as potential probiotics by reporting the prevalence of key genomic features in public genomes and by surveying the outcomes of LAB use in clinical trials involving human subjects. Finally, we highlight the need for further studies aimed at improving our knowledge of the link between LAB-fermented foods and the human gut from the perspective of health promotion.
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Affiliation(s)
- Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, via Università, 100, 80055, Portici (NA)Italy
- Task Force on Microbiome Studies, Corso Umberto I, 40, 80100, Napoli, Italy
| | - Edoardo Pasolli
- Department of Agricultural Sciences, University of Naples Federico II, via Università, 100, 80055, Portici (NA)Italy
- Task Force on Microbiome Studies, Corso Umberto I, 40, 80100, Napoli, Italy
| | - Danilo Ercolini
- Department of Agricultural Sciences, University of Naples Federico II, via Università, 100, 80055, Portici (NA)Italy
- Task Force on Microbiome Studies, Corso Umberto I, 40, 80100, Napoli, Italy
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166
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Characterization of a potential probiotic bacterium Lactococcus raffinolactis WiKim0068 isolated from fermented vegetable using genomic and in vitro analyses. BMC Microbiol 2020; 20:136. [PMID: 32460704 PMCID: PMC7251713 DOI: 10.1186/s12866-020-01820-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 05/12/2020] [Indexed: 12/30/2022] Open
Abstract
Background Lactococcus members belonging to lactic acid bacteria are widely used as starter bacteria in the production of fermented dairy products. From kimchi, a Korean food made of fermented vegetables, Lactococcus raffinolactis WiKim0068 was isolated and its genome was analyzed. Results The complete genome of the strain WiKim0068 consists of one chromosome and two plasmids that comprises 2,292,235 bp, with a G + C content of 39.7 mol%. Analysis of orthoANI values among Lactococcus genome sequences showed that the strain WiKim0068 has > 67% sequence similarity to other species and subspecies. In addition, it displayed no antibiotic resistance and can metabolize nicotinate and nicotinamide (vitamin B3). Conclusion These results augments our understanding of the genus Lactococcus and suggest that this new strain has potential industrial applications.
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167
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Butorac K, Banić M, Novak J, Leboš Pavunc A, Uroić K, Durgo K, Oršolić N, Kukolj M, Radović S, Scalabrin S, Žučko J, Starčević A, Šušković J, Kos B. The functional capacity of plantaricin-producing Lactobacillus plantarum SF9C and S-layer-carrying Lactobacillus brevis SF9B to withstand gastrointestinal transit. Microb Cell Fact 2020; 19:106. [PMID: 32430020 PMCID: PMC7236188 DOI: 10.1186/s12934-020-01365-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/12/2020] [Indexed: 12/26/2022] Open
Abstract
Background We evaluated the functional capacity of plantaricin-producing Lactobacillus plantarum SF9C and S-layer-carrying Lactobacillus brevis SF9B to withstand gastrointestinal transit and to compete among the gut microbiota in vivo. Considering the probiotic potential of Lb. brevis SF9B, this study aims to investigate the antibacterial activity of Lb. plantarum SF9C and their potential for in vivo colonisation in rats, which could be the basis for the investigation of their synergistic functionality. Results A plantaricin-encoding cluster was identified in Lb. plantarum SF9C, a strain which efficiently inhibited the growth of Listeria monocytogenes ATCC® 19111™ and Staphylococcus aureus 3048. Homology-based three-dimensional (3D) structures of SF9C plantaricins PlnJK and PlnEF were predicted using SWISS-MODEL workspace and the helical wheel representations of the plantaricin peptide helices were generated by HELIQUEST. Contrary to the plantaricin-producing SF9C strain, the S-layer-carrying SF9B strain excluded Escherichia coli 3014 and Salmonella enterica serovar Typhimurium FP1 from the adhesion to Caco-2 cells. Finally, PCR-DGGE analysis of the V2–V3 regions of the 16S rRNA gene confirmed the transit of the two selected lactobacilli through the gastrointestinal tract (GIT). Microbiome profiling via the Illumina MiSeq platform revealed the prevalence of Lactobacillus spp. in the gut microbiota of the Lactobacillus-treated rats, even on the 10th day after the Lactobacillus application, compared to the microbiota of the healthy and AlCl3-exposed rats before Lactobacillus treatment. Conclusion The combined application of Lb. plantarum SF9C and Lb. brevis SF9B was able to influence the intestinal microbiota composition in rats, which was reflected in the increased abundance of Lactobacillus genus, but also in the altered abundances of other bacterial genera, either in the model of healthy or aberrant gut microbiota of rats. The antibacterial activity and capacity to withstand in GIT conditions contributed to the functional aspects of SF9C and SF9B strains that could be incorporated in the probiotic-containing functional foods with a possibility to positively modulate the gut microbiota composition.![]()
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Affiliation(s)
- Katarina Butorac
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Martina Banić
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Jasna Novak
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Andreja Leboš Pavunc
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Ksenija Uroić
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Ksenija Durgo
- Laboratory for Biology and Microbial Genetics, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Nada Oršolić
- Department of Animal Physiology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, Zagreb, Croatia
| | - Marina Kukolj
- Department of Animal Physiology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, Zagreb, Croatia
| | | | - Simone Scalabrin
- IGA Technology Services srl, via Jacopo Linussio 51, Udine, Italy
| | - Jurica Žučko
- Laboratory for Bioinformatics, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Antonio Starčević
- Laboratory for Bioinformatics, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Jagoda Šušković
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia
| | - Blaženka Kos
- Laboratory for Antibiotic, Enzyme, Probiotic and Starter Culture Technologies, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, Zagreb, Croatia.
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Impact of Prebiotics and Synbiotics Administered in ovo on the Immune Response against Experimental Antigens in Chicken Broilers. Animals (Basel) 2020; 10:ani10040643. [PMID: 32276459 PMCID: PMC7222847 DOI: 10.3390/ani10040643] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 01/01/2023] Open
Abstract
Simple Summary The immune system of chickens matures in the course of embryonic development. Early in ovo supplementation with bioactive substances leads to the long-term maintenance of a high level of intestine bifidobacteria, reduces the number of detrimental microorganisms in the gut, modulates the central and peripheral lymphatic organ development in broilers, and stimulates gut-associated lymphoid tissues (GALT) development after hatching. In this investigation, we studied whether the early in ovo application (at the 12th day of embryo incubation) of selected bioactives (prebiotics and synbiotics) influences the humoral immune response against experimental antigens, and the delayed-type hypersensitivity (DTH) skin reaction to experimental mitogen. This study demonstrated that the in ovo application of bioactives did not significantly influence the humoral immune response against T-dependent and T-independent model antigens. Prebiotics in chickens immunized with T-dependent antigen (SRBC) protected them from a retarded rise of the IgG concentration. Bioactives reduced the mortality of birds, markedly with inulin (−6.4%), and the DTH reaction to phytohemagglutinin on the 7th and 21st day after hatching. Abstract The effect of the in ovo application of selected prebiotics and synbiotics on the humoral immune response against T-dependent (SRBC) and T-independent (dextran) antigens and delayed-type hypersensitivity (DTH) to phytohemagglutinin was studied. On the 12th day of incubation, 800 eggs (Ross 308) were divided into five groups and injected into the egg air chamber with prebiotic inulin (Pre1), Bi2tos (Pre2), a synbiotic composed of inulin and Lactococcus lactis subsp. lactis IBB SL1 (Syn1), a synbiotic composed of Bi2tos and L. lactis subsp. cremoris IBB SC1 (Syn2), and physiological saline (control group; C). The chickens were immunized twice at the 7th and 21st day of life with SRBC and dextran. A DTH test was performed on the 7th, 21st, and 35th day. The application of prebiotics and synbiotics had no significant effect on the humoral immune response. SRBC-immunized in ovo Pre1- and Pre2-treated chickens showed significantly higher serum IgG levels than the control. A significant effect on the DTH reaction was detected on the 7th (Pre1 < C) and 21st (Pre2 > Syn2) day. However; Bi2tos may transiently stimulate the cellular immune response on the 21st day. It may be concluded that the application of inulin in an egg air chamber on the 12th day of incubation may stimulate the secondary immune response. The inulin-treated group exhibited a lower mortality rate than the control group.
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169
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Shanmugasundaram R, Markazi A, Mortada M, Ng TT, Applegate TJ, Bielke LR, Syed B, Pender CM, Curry S, Murugesan GR, Selvaraj RK. Research Note: Effect of synbiotic supplementation on caecal Clostridium perfringens load in broiler chickens with different necrotic enteritis challenge models. Poult Sci 2020; 99:2452-2458. [PMID: 32359580 PMCID: PMC7597401 DOI: 10.1016/j.psj.2019.10.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 12/11/2022] Open
Abstract
Studies were conducted to determine the efficacy of synbiotic applications to combat the negative effects of necrotic enteritis (NE). An in vitro study was conducted to test the effect of probiotics species supernatants to decrease Clostridium perfringens (CP) proliferation. Lactobacillus reuteri, Enterococcus faecium, Bifidobacterium animalis, and Pediococcus acidilactici culture supernatants decreased the proliferation of CP at 1:1 supernatant-to-pathogen dilution in vitro. Two in vivo studies were conducted to determine the in vivo response of synbiotic supplementation containing the aforementioned probiotic strains on broiler production performance and caecal CP load in broilers induced with NE infection. In experiment 1, 75 broiler chicks were randomly allotted to 3 treatment groups, control (basal diet), ionophore (Salinomycin), and synbiotic (PoultryStar me), from day of hatch, and NE was induced in all birds. There were no significant treatment effects on BW, feed consumption, and feed gain ratio. However, at 35 D, ionophore or synbiotic supplementation increased (P < 0.05) villi height and decreased interleukin (IL)-1 mRNA abundance, while synbiotic supplementation increased (P < 0.05) IL-10 mRNA abundance compared with the control group, respectively. In experiment 2, 360 broiler chicks were randomly allotted to 3 treatments, an unchallenged negative control (control; basal diet), challenged positive control (NE; basal diet), or NE + synbiotic group (synbiotic). At both 21 and 42 D of age, NE birds had decreased (P < 0.05) BW, feed conversion, and jejunal villi height compared with control, while NE + synbiotic birds were not different from control groups. At 42 D of age, NE birds had 2.2 log/g increased CP in the ceca contents compared with control, while synbiotic birds had CP load that was not different than that of the control group. NE + synbiotic birds had significantly greater amounts of bile anti-CP IgA than the control and NE groups. It can be concluded that synbiotic supplementation decreased CP proliferation in vitro and caecal CP load in vivo while improving production parameters during an NE infection in broilers.
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Affiliation(s)
- R Shanmugasundaram
- Department of Animal Sciences, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster 44691, USA; Department of Poultry Sciences, University of Georgia, Athens 30602, USA
| | - A Markazi
- Department of Animal Sciences, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster 44691, USA
| | - M Mortada
- Department of Poultry Sciences, University of Georgia, Athens 30602, USA
| | - T T Ng
- Department of Poultry Sciences, University of Georgia, Athens 30602, USA
| | - T J Applegate
- Department of Poultry Sciences, University of Georgia, Athens 30602, USA
| | - L R Bielke
- Department of Animal Sciences, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster 44691, USA
| | - B Syed
- BIOMIN Holding GmbH, Getzersdorf 3131, Austria
| | - C M Pender
- BIOMIN America Inc., Overland Park 66210, KS, USA
| | - S Curry
- BIOMIN America Inc., Overland Park 66210, KS, USA
| | | | - R K Selvaraj
- Department of Poultry Sciences, University of Georgia, Athens 30602, USA.
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170
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Burkholder KM, Fletcher DH, Gileau L, Kandolo A. Lactic acid bacteria decrease Salmonella enterica Javiana virulence and modulate host inflammation during infection of an intestinal epithelial cell line. Pathog Dis 2020; 77:5480463. [PMID: 31065694 DOI: 10.1093/femspd/ftz025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 04/25/2019] [Indexed: 12/19/2022] Open
Abstract
Salmonella enterica Javiana is a leading cause of severe foodborne Salmonellosis. Despite its emergence as a major foodborne pathogen, little is known of how S. Javiana interacts with intestinal epithelial cells, or of potential methods for ameliorating the bacterial-host interaction. Using cell-based adhesion, invasion and lactate dehydrogenase release assays, we observed an invasive and cytotoxic effect of S. Javiana on intestinal epithelial cells. We assessed the effect of probiotic species of lactic acid bacteria (LAB) on the S. Javiana-host cell interaction, and hypothesized that LAB would reduce S. Javiana infectivity. Salmonella enterica Javiana invasion was significantly impaired in host cells pre-treated with live Lactobacillus acidophilus and Lactobacillus rhamnosus. In addition, pre-exposure of host cells to live L. acidophilus, L. rhamnosus and L. casei reduced S. Javiana-induced cytotoxicity, while heat-killed LAB cultures had no effect on S. Javiana invasion or cytotoxicity. qRT-PCR analysis revealed that S. Javiana exposed to L. acidophilus and L. rhamnosus exhibited reduced virulence gene expression. Moreover, pre-treating host cells with LAB prior to S. Javiana infection reduced host cell production of inflammatory cytokines. Data suggest a potential protective effect of L. acidophilus, L. rhamnosus and L. casei against intestinal epithelial infection and pathogen-induced damage caused by S. Javiana.
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Affiliation(s)
- Kristin M Burkholder
- University of New England, Department of Biology, 11 Hills Beach Rd, Biddeford, ME, USA 04005
| | - Dylan H Fletcher
- University of New England, Department of Biology, 11 Hills Beach Rd, Biddeford, ME, USA 04005
| | - Lauren Gileau
- University of New England, Department of Biology, 11 Hills Beach Rd, Biddeford, ME, USA 04005
| | - Arnold Kandolo
- University of New England, Department of Biology, 11 Hills Beach Rd, Biddeford, ME, USA 04005
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Potential Control of Listeria monocytogenes by Bacteriocinogenic Enterococcus hirae ST57ACC and Pediococcus pentosaceus ST65ACC Strains Isolated From Artisanal Cheese. Probiotics Antimicrob Proteins 2020; 11:696-704. [PMID: 30069686 DOI: 10.1007/s12602-018-9449-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Bacteriocinogenic Enterococcus hirae ST57ACC and Pediococcus pentosaceus ST65ACC strains, previously isolated from artisanal cheese, were evaluated for their safety with the aim to determine whether they could be used as beneficial strains, especially in the control of Listeria monocytogenes. Both isolates survived simulated gastrointestinal conditions and showed high levels of auto- and co-aggregation with L. monocytogenes, although the hydrophobicity of cells varied. Using the agar-spot test with 33 commercial drugs from different groups, only anti-inflammatory drugs and drugs containing loratadine and propranolol hydrochloride were able to affect the growth of the tested strains. Both strains were resistant to 3 out of 11 antibiotics tested by the disc diffusion method, and low frequencies of antibiotic resistance-encoding genes were observed by PCR analysis. Tested strains neither presented biogenic amine-related genes nor produced these substances. Aside from some antibiotic resistance characteristics, the tested strains were considered safe as they lack other virulence-related genes. E. hirae ST57ACC and P. pentosaceus ST65ACC both presented beneficial properties, particularly their ability to survive gastrointestinal conditions and to aggregate with L. monocytogenes, which can facilitate the elimination of this pathogen. Further studies should be conducted to better understand these interactions.
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172
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Lee JM, Jang WJ, Lee EW, Kong IS. β-glucooligosaccharides derived from barley β-glucan promote growth of lactic acid bacteria and enhance nisin Z secretion by Lactococcus lactis. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109014] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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173
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Ruan W, Engevik MA, Spinler JK, Versalovic J. Healthy Human Gastrointestinal Microbiome: Composition and Function After a Decade of Exploration. Dig Dis Sci 2020; 65:695-705. [PMID: 32067143 DOI: 10.1007/s10620-020-06118-4] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The human gastrointestinal (GI) tract contains communities of microbes (bacteria, fungi, viruses) that vary by anatomic location and impact human health. Microbial communities differ in composition based on age, diet, and location in the gastrointestinal tract. Differences in microbial composition have been associated with chronic disease states. In terms of function, microbial metabolites provide key signals that help maintain healthy human physiology. Alterations of the healthy gastrointestinal microbiome have been linked to the development of various disease states including inflammatory bowel disease, diabetes, and colorectal cancer. While the definition of a healthy GI microbiome cannot be precisely identified, features of a healthy gut microbiome include relatively greater biodiversity and relative abundances of specific phyla and genera. Microbes with desirable functional profiles for the human host have been identified, in addition to specific metabolic features of the microbiome. This article reviews the composition and function of the healthy human GI microbiome, including the relative abundances of different bacterial taxa and the specific metabolic pathways and classes of microbial metabolites contributing to human health and disease prevention.
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Affiliation(s)
- Wenly Ruan
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.,Section of Gastroenterology, Hepatology, and Nutrition, Texas Children's Hospital, Houston, TX, USA
| | - Melinda A Engevik
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA.,Department of Pathology, Texas Children's Hospital, 1102 Bates St., Feigin Tower Suite 830, Houston, TX, 77030, USA
| | - Jennifer K Spinler
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA.,Department of Pathology, Texas Children's Hospital, 1102 Bates St., Feigin Tower Suite 830, Houston, TX, 77030, USA
| | - James Versalovic
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA. .,Department of Pathology, Texas Children's Hospital, 1102 Bates St., Feigin Tower Suite 830, Houston, TX, 77030, USA.
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174
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Li Y, Hu S, Gong L, Pan L, Li D, Cao L, Khan TA, Yang Y, Peng Y, Ding X, Yi G, Liu S, Xia L. Isolating a new Streptomyces amritsarensis N1-32 against fish pathogens and determining its effects on disease resistance of grass carp. FISH & SHELLFISH IMMUNOLOGY 2020; 98:632-640. [PMID: 31669281 DOI: 10.1016/j.fsi.2019.10.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/21/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
In this study, a Streptomyces strain was isolated from the soil samples of Yanghu Wetland Park in Changsha, Hunan Province. This strain showed excellent antimicrobial activity against 10 fish pathogens, as indicated by the results of the agar-diffusion and oxford cup assays. After 16s rDNA sequencing and physiological & biochemical analyses, it was identified as Streptomyces amritsarensis, namely for S. amritsarensis N1-32. Cytotoxicity test was performed, and the results exhibited that this strain had no toxicity to hepatic L8824 cell line from grass carp liver. The diets supplemented strain N1-32 at concentrations of 1 × 107 cfu/g and 1 × 109 cfu/g was used to feed fish. After 28 days, the expression levels of antioxidant-related genes Nrf2 and Keap1 in the liver and spleen were significantly up-regulated, and the expression of immune-related gene IgM was notably increased in the liver, kidney, head-kidney, and spleen. Toll-like receptor 4 (TLR4) gene expression was up-regulated in the spleen, and TLR4, myeloid differentiation factor 88 (MyD88) gene were up-regulated in the kidney. The survival rate of grass carp was significantly improved after pathogen infection. Whole-genome analysis of N1-32 showed that the strain harbored related genes, capability for producing substances that enhance the immunity of grass carp and inhibit pathogens. A total of 22 gene clusters were identified in the genome, including 5 terpene gene clusters, 4 nonribosomal peptide-synthetase (NRPS) gene clusters and 2 lantipeptide gene clusters. In summary, these results showed that strain N1-32 as a feed additive could regulate grass carp immunity and enhance the resistance of grass carp against fish pathogens.
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Affiliation(s)
- Yanping Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Shengbiao Hu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Liang Gong
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Lifei Pan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Dongjie Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Lina Cao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Tahir Ali Khan
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Yahui Yang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Yanan Peng
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Xuezhi Ding
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China
| | - Ganfeng Yi
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China.
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China.
| | - Liqiu Xia
- State Key Laboratory of Developmental Biology of Freshwater Fish, Changsha, 410081, China; Hunan Provincial Key Laboratory for Microbial Molecular Biology, Changsha, 410081, China; College of Life and Science, Hunan Normal University, Changsha, 410081, China.
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175
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Unique genetic basis of the distinct antibiotic potency of high acetic acid production in the probiotic yeast Saccharomyces cerevisiae var. boulardii. Genome Res 2020; 29:1478-1494. [PMID: 31467028 PMCID: PMC6724677 DOI: 10.1101/gr.243147.118] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 06/20/2019] [Indexed: 12/14/2022]
Abstract
The yeast Saccharomyces boulardii has been used worldwide as a popular, commercial probiotic, but the basis of its probiotic action remains obscure. It is considered conspecific with budding yeast Saccharomyces cerevisiae, which is generally used in classical food applications. They have an almost identical genome sequence, making the genetic basis of probiotic potency in S. boulardii puzzling. We now show that S. boulardii produces at 37°C unusually high levels of acetic acid, which is strongly inhibitory to bacterial growth in agar-well diffusion assays and could be vital for its unique application as a probiotic among yeasts. Using pooled-segregant whole-genome sequence analysis with S. boulardii and S. cerevisiae parent strains, we succeeded in mapping the underlying QTLs and identified mutant alleles of SDH1 and WHI2 as the causative alleles. Both genes contain a SNP unique to S. boulardii (sdh1F317Y and whi2S287*) and are fully responsible for its high acetic acid production. S. boulardii strains show different levels of acetic acid production, depending on the copy number of the whi2S287* allele. Our results offer the first molecular explanation as to why S. boulardii could exert probiotic action as opposed to S. cerevisiae. They reveal for the first time the molecular-genetic basis of a probiotic action-related trait in S. boulardii and show that antibacterial potency of a probiotic microorganism can be due to strain-specific mutations within the same species. We suggest that acquisition of antibacterial activity through medium acidification offered a selective advantage to S. boulardii in its ecological niche and for its application as a probiotic.
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176
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Synbiotic supplementation with prebiotic green banana resistant starch and probiotic Bacillus coagulans spores ameliorates gut inflammation in mouse model of inflammatory bowel diseases. Eur J Nutr 2020; 59:3669-3689. [PMID: 32067099 PMCID: PMC7669818 DOI: 10.1007/s00394-020-02200-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 02/06/2020] [Indexed: 02/07/2023]
Abstract
Purpose The research goal is to develop dietary strategies to help address the growing incidence of inflammatory bowel diseases (IBD). This study has investigated the effectiveness of green banana resistant starch (GBRS) and probiotic Bacillus coagulans MTCC5856 spores for the amelioration of dextran-sulfate sodium (DSS)-induced colitis in mice. Methods Eight-week-old C57BL/6 mice were fed standard rodent chow diet supplemented with either B. coagulans, GBRS or its synbiotic combination. After 7 days supplementation, colitis was induced by adding 2% DSS in drinking water for 7 days while continuing the supplemented diets. Animal health was monitored and after 14 days all animals were sacrificed to measure the biochemical and histochemical changes associated with each supplement type. Results The disease activity index and histological damage score for DSS-control mice (6.1, 17.1, respectively) were significantly higher (p < 0.0001) than the healthy mice. Synbiotic supplementation alleviated these markers (− 67%, − 94% respectively) more adequately than B. coagulans (− 52%, − 58% respectively) or GBRS (− 57%, − 26%, respectively) alone. Compared to DSS-control synbiotic supplementation significantly (p < 0.0001) maintained expressions of tight junction proteins. Moreover, synbiotic effects accounted for ~ 40% suppression of IL-1β and ~ 29% increase in IL-10 levels in serum while also reducing C-reactive protein (− 37%) compared to that of the DSS-control. While, B. coagulans alone could not induce additional levels of short-chain fatty acid (SCFA) production beyond the caecum, the synbiotic combination with GBRS resulted in substantial increased SCFA levels across the whole length of the colon. Conclusion The synbiotic supplementation with B. coagulans and GBRS ameliorated the overall inflammatory status of the experimental IBD model via synergistic functioning. This supports researching its application in mitigating inflammation in human IBD. Electronic supplementary material The online version of this article (10.1007/s00394-020-02200-9) contains supplementary material, which is available to authorized users.
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177
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Pelton R. Postbiotic Metabolites: How Probiotics Regulate Health. Integr Med (Encinitas) 2020; 19:25-30. [PMID: 32549861 PMCID: PMC7238912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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178
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Newstead LL, Varjonen K, Nuttall T, Paterson GK. Staphylococcal-Produced Bacteriocins and Antimicrobial Peptides: Their Potential as Alternative Treatments for Staphylococcus aureus Infections. Antibiotics (Basel) 2020; 9:antibiotics9020040. [PMID: 31973108 PMCID: PMC7168290 DOI: 10.3390/antibiotics9020040] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/16/2020] [Accepted: 01/19/2020] [Indexed: 12/05/2022] Open
Abstract
Staphylococcus aureus is an important pathogen of both humans and animals, implicated in a wide range of infections. The emergence of antibiotic resistance has resulted in S. aureus strains that are resistant to almost all available antibiotics, making treatment a clinical challenge. Development of novel antimicrobial approaches is now a priority worldwide. Bacteria produce a range of antimicrobial peptides; the most diverse of these being bacteriocins. Bacteriocins are ribosomally synthesised peptides, displaying potent antimicrobial activity usually against bacteria phylogenetically related to the producer strain. Several bacteriocins have been isolated from commensal coagulase-negative staphylococci, many of which display inhibitory activity against S. aureus in vitro and in vivo. The ability of these bacteriocins to target biofilm formation and their novel mechanisms of action with efficacy against antibiotic-resistant bacteria make them strong candidates as novel therapeutic antimicrobials. The use of genome-mining tools will help to advance identification and classification of bacteriocins. This review discusses the staphylococcal-derived antimicrobial peptides displaying promise as novel treatments for S. aureus infections.
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Affiliation(s)
- Logan L. Newstead
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK; (L.L.N.); (T.N.)
| | - Katarina Varjonen
- AniCura Djursjukhuset Albano, Rinkebyvägen 21A, 182 36 Danderyd, Sweden;
| | - Tim Nuttall
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK; (L.L.N.); (T.N.)
| | - Gavin K. Paterson
- Royal (Dick) School of Veterinary Studies and The Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian EH25 9RG, UK; (L.L.N.); (T.N.)
- Correspondence:
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179
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O'Connor PM, Kuniyoshi TM, Oliveira RP, Hill C, Ross RP, Cotter PD. Antimicrobials for food and feed; a bacteriocin perspective. Curr Opin Biotechnol 2020; 61:160-167. [PMID: 31968296 DOI: 10.1016/j.copbio.2019.12.023] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/30/2019] [Accepted: 12/20/2019] [Indexed: 02/07/2023]
Abstract
Bacteriocins are natural antimicrobials that have been consumed via fermented foods for millennia and have been the focus of renewed efforts to identify novel bacteriocins, and their producing microorganisms, for use as food biopreservatives and other applications. Bioengineering bacteriocins or combining bacteriocins with multiple modes of action (hurdle approach) can enhance their preservative effect and reduces the incidence of antimicrobial resistance. In addition to their role as food biopreservatives, bacteriocins are gaining credibility as health modulators, due to their ability to regulate the gut microbiota, which is strongly associated with human wellbeing. Indeed the strengthening link between the gut microbiota and obesity make bacteriocins ideal alternatives to Animal Growth Promoters (AGP) in animal feed also. Here we review recent advances in bacteriocin research that will contribute to the development of functional foods and feeds as a consequence of roles in food biopreservation and human/animal health.
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Affiliation(s)
- Paula M O'Connor
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland
| | - Taís M Kuniyoshi
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland; Biochemical and Pharmaceutical Technology Department, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes 580, São Paulo 05508-900, Brazil
| | - Ricardo Ps Oliveira
- Biochemical and Pharmaceutical Technology Department, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes 580, São Paulo 05508-900, Brazil
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Ireland; School of Microbiology, University College Cork, Ireland
| | - Reynolds Paul Ross
- APC Microbiome Ireland, University College Cork, Ireland; School of Microbiology, University College Cork, Ireland
| | - Paul D Cotter
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland; APC Microbiome Ireland, University College Cork, Ireland.
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180
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O'Sullivan JN, O'Connor PM, Rea MC, O'Sullivan O, Walsh CJ, Healy B, Mathur H, Field D, Hill C, Ross RP. Nisin J, a Novel Natural Nisin Variant, Is Produced by Staphylococcus capitis Sourced from the Human Skin Microbiota. J Bacteriol 2020; 202:e00639-19. [PMID: 31740495 PMCID: PMC6964739 DOI: 10.1128/jb.00639-19] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 11/05/2019] [Indexed: 02/04/2023] Open
Abstract
The skin microbiota is thought to play a key role in host protection from infection. Nisin J is a novel nisin variant produced by Staphylococcus capitis APC 2923, a strain isolated from the toe web space area in a screening study performed on the human skin microbiota. Whole-genome sequencing and mass spectrometry of the purified peptide confirmed that S. capitis APC 2923 produces a 3,458-Da bacteriocin, designated nisin J, which exhibited antimicrobial activity against a range of Gram-positive pathogens, including methicillin-resistant Staphylococcus aureus (MRSA) and Cutibacterium acnes The gene order in the nisin J gene cluster (nsjFEGBTCJP) differs from that of other nisin variants in that it is lacking the nisin regulatory genes, nisRK, as well as the nisin immunity gene nisI Nisin J has 9 amino acid changes compared to prototypical nisin A, with 8 amino acid substitutions, 6 of which are not present in other nisin variants (Ile4Lys, Met17Gln, Gly18Thr, Asn20Phe, Met21Ala, Ile30Gly, Val33His, and Lys34Thr), and an extra amino acid close to the C terminus, rendering nisin J the only nisin variant to contain 35 amino acids. This is the first report of a nisin variant produced by a Staphylococcus species and the first nisin producer isolated from human skin.IMPORTANCE This study describes the characterization of nisin J, the first example of a natural nisin variant, produced by a human skin isolate of staphylococcal origin. Nisin J displays inhibitory activity against a wide range of bacterial targets, including MRSA. This work demonstrates the potential of human commensals as a source for novel antimicrobials that could form part of the solution to antibiotic resistance across a broad range of bacterial pathogens.
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Affiliation(s)
- Julie N O'Sullivan
- Teagasc Food Research Centre, Fermoy, County Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Paula M O'Connor
- Teagasc Food Research Centre, Fermoy, County Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Mary C Rea
- Teagasc Food Research Centre, Fermoy, County Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Orla O'Sullivan
- Teagasc Food Research Centre, Fermoy, County Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Calum J Walsh
- Teagasc Food Research Centre, Fermoy, County Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Brian Healy
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Harsh Mathur
- Teagasc Food Research Centre, Fermoy, County Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Des Field
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Colin Hill
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - R Paul Ross
- Teagasc Food Research Centre, Fermoy, County Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
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Jia Y, Yang B, Ross P, Stanton C, Zhang H, Zhao J, Chen W. Comparative Genomics Analysis of Lactobacillus mucosae from Different Niches. Genes (Basel) 2020; 11:genes11010095. [PMID: 31947593 PMCID: PMC7016874 DOI: 10.3390/genes11010095] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/30/2019] [Accepted: 01/09/2020] [Indexed: 12/15/2022] Open
Abstract
The potential probiotic benefits of Lactobacillus mucosae have received increasing attention. To investigate the genetic diversity of L. mucosae, comparative genomic analyses of 93 strains isolated from different niches (human and animal gut, human vagina, etc.) and eight strains of published genomes were conducted. The results showed that the core genome of L. mucosae mainly encoded translation and transcription, amino acid biosynthesis, sugar metabolism, and defense function while the pan-genomic curve tended to be close. The genetic diversity of L. mucosae mainly reflected in carbohydrate metabolism and immune/competitive-related factors, such as exopolysaccharide (EPS), enterolysin A, and clustered regularly interspaced short palindromic repeats (CRISPR)-Cas. It was worth noting that this research firstly predicted the complete EPS operon shared among L. mucosae. Additionally, the type IIIA CRISPR-Cas system was discovered in L. mucosae for the first time. This work provided new ideas for the study of this species.
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Affiliation(s)
- Yan Jia
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.J.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Bo Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.J.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China; (P.R.); (C.S.)
- Correspondence: ; Tel.: +86-510-591-2155
| | - Paul Ross
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China; (P.R.); (C.S.)
- APC Microbiome Ireland, University College Cork, T12 K8AF Cork, Ireland
| | - Catherine Stanton
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi 214122, China; (P.R.); (C.S.)
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.J.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi 214122, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.J.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (Y.J.); (H.Z.); (J.Z.); (W.C.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
- Beijing Innovation Center of Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 102488, China
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Britton AP, van der Ende SR, van Belkum MJ, Martin‐Visscher LA. The membrane topology of immunity proteins for the two-peptide bacteriocins carnobacteriocin XY, lactococcin G, and lactococcin MN shows structural diversity. Microbiologyopen 2020; 9:e00957. [PMID: 31667956 PMCID: PMC6957408 DOI: 10.1002/mbo3.957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 11/20/2022] Open
Abstract
The two-peptide bacteriocins produced by Gram-positive bacteria require two different peptides, present in equimolar amounts, to elicit optimal antimicrobial activity. Producer organisms are protected from their bacteriocin by a dedicated immunity protein. The immunity proteins for two-peptide bacteriocins contain putative transmembrane domains (TMDs) and might therefore be associated with the membrane. The immunity protein CbnZ for the two-peptide bacteriocin carnobacteriocin XY (CbnXY) was identified by heterologously expressing the cbnZ gene in sensitive host strains. Using protein topology prediction methods and the dual pho-lac reporter system, we mapped out the membrane topology of CbnZ, along with those of the immunity proteins LagC and LciM for the two-peptide bacteriocins lactococcin G and lactococcin MN, respectively. Our results reveal wide structural variety between these immunity proteins that can contain as little as one TMD or as many as four TMDs.
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Affiliation(s)
| | - Sarah R. van der Ende
- Department of ChemistryThe King's UniversityEdmontonABCanada
- Present address:
Department of Biochemistry & Molecular BiologyDalhousie UniversityHalifaxNSCanada
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Lactobacillus acidophilus JCM 1132 Strain and Its Mutant with Different Bacteriocin-Producing Behaviour Have Various in Situ Effects on the Gut Microbiota of Healthy Mice. Microorganisms 2019; 8:microorganisms8010049. [PMID: 31881756 PMCID: PMC7022661 DOI: 10.3390/microorganisms8010049] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 02/06/2023] Open
Abstract
The production of bacteriocin is considered to be a probiotic trait of lactic acid bacteria (LAB). However, not all strains of LAB harbour bacteriocin genes, even within the same species. Moreover, the effects of bacteriocins on the host gut microbiota and on host physiological indicators are rarely studied. This study evaluated the effects of the bacteriocin-producing Lactobacillus acidophilus strain JCM1132 and its non-producing spontaneous mutant, L. acidophilus CCFM720, on the physiological statuses and gut microbiota of healthy mice. Mice that received the bacteriocin-producing strain JCM1132 exhibited reduced water and food intake. Furthermore, the administration of these strains induced significant changes in the compositional abundance of faecal microbiota at the phylum and genus levels, and some of these changes were more pronounced after one week of withdrawal. The effects of CCFM720 treatment on the gut microbiota seemed to favour the prevention of metabolic diseases to some extent. However, individuals that received JCM1132 treatment exhibited weaker inflammatory responses than those that received CCFM720 treatment. Our results indicate that treatment with bacteriocin-producing or non-producing strains can have different effects on the host. Accordingly, this trait should be considered in the applications of LAB.
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184
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O'Sullivan JN, Rea MC, O'Connor PM, Hill C, Ross RP. Human skin microbiota is a rich source of bacteriocin-producing staphylococci that kill human pathogens. FEMS Microbiol Ecol 2019; 95:5259109. [PMID: 30590567 PMCID: PMC6340406 DOI: 10.1093/femsec/fiy241] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 12/23/2018] [Indexed: 12/16/2022] Open
Abstract
The demand for novel antimicrobial therapies due to the threat posed by antimicrobial resistance has resulted in a growing interest in the protective role of our skin bacteria and the importance of competition among bacteria on the skin. A survey of the cultivable bacteria on human skin was undertaken to identify the capacity of the skin microbiota to produce bacteriocins with activity against skin pathogens. Twenty-one bacteriocins produced by bacteria isolated from seven sites on the human body of each subject exhibited inhibition spectra ranging from broad to narrow range, inhibiting many Gram-positive bacteria, including opportunistic skin pathogens such as Propionibacterium acnes (recently renamed Cutibacterium acnes), Staphylococcus epidermidis and methicillin-resistant Staphylococcus aureus (MRSA). Sequencing indicated that the antimicrobial-producing isolates were predominately species/strains of the Staphylococcus genus. Colony mass spectrometry revealed peptide masses that do not correspond to known bacteriocins. In an era where antibiotic resistance is of major concern, the inhibitory effect of novel bacteriocins from the bacteria of skin origin demonstrates the antimicrobial potential that could be harnessed from within the human skin microbiota.
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Affiliation(s)
- Julie N O'Sullivan
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996.,School of Microbiology, Food Science & Technology Building, University College Cork, College road, Cork, T12 K8AF.,APC Microbiome Ireland, Biosciences Institute, University College Cork, College Road, Cork, Ireland, T12 YT20
| | - Mary C Rea
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996.,APC Microbiome Ireland, Biosciences Institute, University College Cork, College Road, Cork, Ireland, T12 YT20
| | - Paula M O'Connor
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 C996.,APC Microbiome Ireland, Biosciences Institute, University College Cork, College Road, Cork, Ireland, T12 YT20
| | - Colin Hill
- School of Microbiology, Food Science & Technology Building, University College Cork, College road, Cork, T12 K8AF.,APC Microbiome Ireland, Biosciences Institute, University College Cork, College Road, Cork, Ireland, T12 YT20
| | - R Paul Ross
- School of Microbiology, Food Science & Technology Building, University College Cork, College road, Cork, T12 K8AF.,APC Microbiome Ireland, Biosciences Institute, University College Cork, College Road, Cork, Ireland, T12 YT20
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185
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Jäger R, Mohr AE, Carpenter KC, Kerksick CM, Purpura M, Moussa A, Townsend JR, Lamprecht M, West NP, Black K, Gleeson M, Pyne DB, Wells SD, Arent SM, Smith-Ryan AE, Kreider RB, Campbell BI, Bannock L, Scheiman J, Wissent CJ, Pane M, Kalman DS, Pugh JN, ter Haar JA, Antonio J. International Society of Sports Nutrition Position Stand: Probiotics. J Int Soc Sports Nutr 2019; 16:62. [PMID: 31864419 PMCID: PMC6925426 DOI: 10.1186/s12970-019-0329-0] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 12/04/2019] [Indexed: 12/14/2022] Open
Abstract
Position statement: The International Society of Sports Nutrition (ISSN) provides an objective and critical review of the mechanisms and use of probiotic supplementation to optimize the health, performance, and recovery of athletes. Based on the current available literature, the conclusions of the ISSN are as follows: 1)Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host (FAO/WHO).2)Probiotic administration has been linked to a multitude of health benefits, with gut and immune health being the most researched applications.3)Despite the existence of shared, core mechanisms for probiotic function, health benefits of probiotics are strain- and dose-dependent.4)Athletes have varying gut microbiota compositions that appear to reflect the activity level of the host in comparison to sedentary people, with the differences linked primarily to the volume of exercise and amount of protein consumption. Whether differences in gut microbiota composition affect probiotic efficacy is unknown.5)The main function of the gut is to digest food and absorb nutrients. In athletic populations, certain probiotics strains can increase absorption of key nutrients such as amino acids from protein, and affect the pharmacology and physiological properties of multiple food components.6)Immune depression in athletes worsens with excessive training load, psychological stress, disturbed sleep, and environmental extremes, all of which can contribute to an increased risk of respiratory tract infections. In certain situations, including exposure to crowds, foreign travel and poor hygiene at home, and training or competition venues, athletes' exposure to pathogens may be elevated leading to increased rates of infections. Approximately 70% of the immune system is located in the gut and probiotic supplementation has been shown to promote a healthy immune response. In an athletic population, specific probiotic strains can reduce the number of episodes, severity and duration of upper respiratory tract infections.7)Intense, prolonged exercise, especially in the heat, has been shown to increase gut permeability which potentially can result in systemic toxemia. Specific probiotic strains can improve the integrity of the gut-barrier function in athletes.8)Administration of selected anti-inflammatory probiotic strains have been linked to improved recovery from muscle-damaging exercise.9)The minimal effective dose and method of administration (potency per serving, single vs. split dose, delivery form) of a specific probiotic strain depends on validation studies for this particular strain. Products that contain probiotics must include the genus, species, and strain of each live microorganism on its label as well as the total estimated quantity of each probiotic strain at the end of the product's shelf life, as measured by colony forming units (CFU) or live cells.10)Preclinical and early human research has shown potential probiotic benefits relevant to an athletic population that include improved body composition and lean body mass, normalizing age-related declines in testosterone levels, reductions in cortisol levels indicating improved responses to a physical or mental stressor, reduction of exercise-induced lactate, and increased neurotransmitter synthesis, cognition and mood. However, these potential benefits require validation in more rigorous human studies and in an athletic population.
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Affiliation(s)
| | - Alex E. Mohr
- College of Health Solutions, Arizona State University, Phoenix, AZ USA
| | | | - Chad M. Kerksick
- Exercise and Performance Nutrition Laboratory, School of Health Sciences, Lindenwood University, St. Charles, MO USA
| | | | - Adel Moussa
- University of Münster, Department of Physics Education, Münster, Germany
| | - Jeremy R. Townsend
- Exercise and Nutrition Science Graduate Program, Lipscomb University, Nashville, TN USA
| | - Manfred Lamprecht
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Nicholas P. West
- School of Medical Science and Menzies Health Institute of QLD, Griffith Health, Griffith University, Southport, Australia
| | - Katherine Black
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Michael Gleeson
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - David B. Pyne
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT 2617 Australia
| | | | - Shawn M. Arent
- UofSC Sport Science Lab, Department of Exercise Science, University of South Carolina, Columbia, SC USA
| | - Abbie E. Smith-Ryan
- Applied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC USA
| | - Richard B. Kreider
- Exercise & Sport Nutrition Lab, Human Clinical Research Facility, Department of Health & Kinesiology, Texas A&M University, College Station, TX USA
| | - Bill I. Campbell
- Performance & Physique Enhancement Laboratory, University of South Florida, Tampa, FL USA
| | | | | | | | | | - Douglas S. Kalman
- Scientific Affairs. Nutrasource Diagnostics, Inc. Guelph, Guelph, Ontario Canada
| | - Jamie N. Pugh
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Tom Reilly Building, Byrom St Campus, Liverpool, UK
| | | | - Jose Antonio
- Exercise and Sport Science, Nova Southeastern University, Davie, FL USA
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186
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Umu ÖCO, Gueimonde M, Oostindjer M, Ovchinnikov KV, de los Reyes-Gavilán CG, Arbulu S, Hernández PE, Martínez B, Diep DB, Salazar N. Use of Fecal Slurry Cultures to Study In Vitro Effects of Bacteriocins on the Gut Bacterial Populations of Infants. Probiotics Antimicrob Proteins 2019; 12:1218-1225. [DOI: 10.1007/s12602-019-09614-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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187
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Kubašová I, Diep DB, Ovchinnikov KV, Lauková A, Strompfová V. Bacteriocin production and distribution of bacteriocin-encoding genes in enterococci from dogs. Int J Antimicrob Agents 2019; 55:105859. [PMID: 31794868 DOI: 10.1016/j.ijantimicag.2019.11.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 11/21/2019] [Accepted: 11/27/2019] [Indexed: 01/02/2023]
Abstract
Many enterococcal strains produce bacteriocins, which could be useful as natural food preservatives through inhibition of pathogenic and spoilage microorganisms. There is little knowledge of the distribution and spectrum of bacteriocin activity and the distribution of bacteriocin-encoding genes in enterococci isolated from dogs. Therefore, we subjected 160 enterococcal isolates (E. faecium n=92, E. faecalis n=35, E. hirae n=28, E. casseliflavus n=3, E. mundtii n=2) from 105 samples of dog faeces to polymerase chain reaction (PCR) detection of genes for enterocin A, P, B, L50A, L50B, AS-48, and bac31 and to screening for bacteriocin activity. The results showed the presence of at least one of the tested genes in 54/160 isolates, with E. faecium the most common gene-possessing species. The most frequently occurring gene for production of enterocin A was observed in combination with enterocin P and B. Bacteriocin activity was observed in 76/160 isolates against at least one of 5 indicator bacteria from the genus Listeria, Enterococcus, Streptococcus and Staphylococcus. Four selected strains (IK25, Bri, I/Dz, P10) were active mostly against different species of Enterococcus (in the range 400-25 600 AU/mL) and Listeria sp. (800-12 800 AU/mL) but no Gram-negative bacteria were inhibited. Protein character, thermostability (up to 121°C) and stability at different pH values (3.0-10.0) were confirmed for crude bacteriocins of these four strains. The antimicrobial substance of E. faecium IK25 strain was identified as enterocin B using molecular weight detection and the presence of genes.
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Affiliation(s)
- Ivana Kubašová
- Centre of Biosciences, Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Košice, Slovakia.
| | - Dzung B Diep
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, NO-1432 Ås, Norway
| | - Kirill V Ovchinnikov
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, NO-1432 Ås, Norway
| | - Andrea Lauková
- Centre of Biosciences, Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Košice, Slovakia
| | - Viola Strompfová
- Centre of Biosciences, Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Košice, Slovakia
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188
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Zhang DX, Kang YH, Zhan S, Zhao ZL, Jin SN, Chen C, Zhang L, Shen JY, Wang CF, Wang GQ, Shan XF, Qian AD. Effect of Bacillus velezensis on Aeromonas veronii-Induced Intestinal Mucosal Barrier Function Damage and Inflammation in Crucian Carp ( Carassius auratus). Front Microbiol 2019; 10:2663. [PMID: 31798571 PMCID: PMC6874145 DOI: 10.3389/fmicb.2019.02663] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 11/01/2019] [Indexed: 12/29/2022] Open
Abstract
Aeromonas veronii is an emerging aquatic pathogen causing hemorrhagic septicemia in humans and animals. Probiotic is an effective strategy for controlling enteric infections through reducing intestinal colonization by pathogens. Here we report that the consumption of Bacillus velezensis regulated the intestinal innate immune response and decreased the degree of intestinal inflammation damage caused by the A. veronii in Crucian carp. In this study, we isolated four strains of B. velezensis, named C-11, S-22, L-17 and S-14 from apparently healthy Crucian carp, which exerted a broad-spectrum antimicrobial activity inhibiting both Gram-positive and Gram-negative bacteria especially the fish pathogens. B. velezensis isolates showed typical Bacillus characteristics by endospore staining, physiological and biochemical test, enzyme activity analysis (amylase, protease, and lipase), and molecular identification. Here, Bacillus-containing dietary was orally administrated to Crucian carp for 8 weeks before A. veronii challenge. Immunological parameters and the expression of immune-related genes were measured at 2, 4, 6, 8, and 10 weeks post-administration. The results showed that B. velezensis was found to promote the increase in the phagocytic activities of peripheral blood leukocytes (PBLs) and head kidney leukocytes (HKLs), as well as the increase in interleukin 1β (IL-1β), IL-10 and tumor necrosis factor α (TNF-α) concentration of serum. Lysozyme levels (113.76 U/mL), ACP activity (25.32 U/mL), AKP activity (130.08 U/mL), and SOD activity (240.63 U/mL) were maximum (P < 0.05) in the B. velezensis C-11 treated group at 8 week. Our results showed that Crucian carp fed with the diet containing B. velezensis C-11 and S-22 developed a strong immune response with significantly higher (P < 0.05) levels of IgM in samples of serum, mucus of skin and intestine compared to B. velezensis L-17 and S-14 groups. Moreover, B. velezensis spores appeared to show no toxicity and damage in fish, which could inhabit the gut of Crucian carp. B. velezensis restrained up-regulation of pro-inflammation cytokines (IL-1β, IFN-γ, and TNF-α) mRNA levels in the intestine and head kidney at final stage of administration, and the expression of IL-10 was increased throughout the 10-week trial. A. veronii infection increased the population of inflammatory cells in the intestinal villi in the controls. In contrast, numerous goblet cells and few inflammatory cells infiltrated the mucosa in the B. velezensis groups after challenge with A. veronii. Compared with A. veronii group, B. velezensis could safeguard the integrity of intestinal villi. The highest post-challenge survival rate (75.0%) was recorded in B. velezensis C-11 group. The present data suggest that probiotic B. velezensis act as a potential gut-targeted therapy regimens to protecting fish from pathogenic bacteria infection. IMPORTANCE In this work, four Bacillus velezensis strains isolated from apparently healthy Crucian carp, which exhibited a broad-spectrum antibacterial activity especially the fish pathogens. Administration of B. velezensis induced the enhancement of the intestinal innate immune response through reducing intestinal colonization by pathogens. The isolation and characterization would help better understand probiotic can be recognized as an alternative of antimicrobial drugs protecting human and animal health.
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Affiliation(s)
- Dong-Xing Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Yuan-Huan Kang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Sheng Zhan
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Ze-Lin Zhao
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Sheng-Nan Jin
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Chong Chen
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Lei Zhang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Jin-Yu Shen
- Agriculture Ministry Key Laboratory of Healthy Freshwater Aquaculture, Key Laboratory of Fish Health and Nutrition of Zhejiang Province, Zhejiang Institute of Freshwater Fisheries, Huzhou, China
| | - Chun-Feng Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Gui-Qin Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Xiao-Feng Shan
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
| | - Ai-Dong Qian
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
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189
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Gontijo MTP, Silva JDS, Vidigal PMP, Martin JGP. Phylogenetic distribution of the bacteriocin repertoire of lactic acid bacteria species associated with artisanal cheese. Food Res Int 2019; 128:108783. [PMID: 31955749 DOI: 10.1016/j.foodres.2019.108783] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 10/22/2019] [Accepted: 10/26/2019] [Indexed: 12/20/2022]
Abstract
The microbiota contributes to artisanal cheese bioprotection and biopreservation through inter and intraspecific competition. This work aimed to investigate the phylogenetic distribution of the repertoire of bacteriocin structural genes of model lactic acid bacteria (LAB) in order to investigate its respective role in the artisanal cheeses microenvironment. A phylogenetic analysis of the rRNA 16S gene from 445 model strains of LAB was conducted using bayesian inference and the repertoire of bacteriocin genes was predicted from these strains by BAGEL software. Bacterial strains were clustered in five monophyletic clades (A, B, C, D and E) with high posterior probability values (PP > 0.99). One bacteriocin structural gene was predicted for 88.5% of the analyzed strains. The majority of the species encoded different classes of bacteriocins. Greater diversity of bacteriocin genes was found for strains included in clade A, comprising Lactococcus lactis, Streptococcus agalactiae, Streptococcus thermophilus, Streptococcus macedonicus, Enterococcus faecalis and Enterococcus faecium. In addition, Lactococcus lactis presented higher diversity of bacteriocin classes, encoding glycocins, lanthipeptides, sactipeptides, cyclic and linear azole-containing peptides, included in bacteriocins class I, besides class II and III. The results suggest that the distribution of bacteriocin structural genes is related to the phylogenetic clades of LAB species, with a higher frequency in some specific clades. Information comprised in this study contributes to comprehend the bacterial competition mechanisms in the artisanal cheese microenvironment.
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Affiliation(s)
- Marco Túlio Pardini Gontijo
- Departamento de Microbiologia, Centro de Ciências Biológicas e da Saúde (CCB), Universidade Federal de Viçosa (UFV), Viçosa, 36570-900, Minas Gerais, Brazil.
| | - Jackson de Sousa Silva
- Departamento de Engenharia de Produção, Centro de Ciências e Tecnologia (CCT), Universidade Regional do Cariri (URCA), Juazeiro do Norte, 63040-000 Ceará, Brazil.
| | - Pedro Marcus Pereira Vidigal
- Núcleo de Análise de Biomoléculas (NUBIOMOL), Universidade Federal de Viçosa (UFV), Viçosa, 36570-900, Minas Gerais, Brazil
| | - José Guilherme Prado Martin
- Departamento de Microbiologia, Centro de Ciências Biológicas e da Saúde (CCB), Universidade Federal de Viçosa (UFV), Viçosa, 36570-900, Minas Gerais, Brazil
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190
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Amao JA, Barooah M, Omojasola PF. Comparative 16S rDNA metagenomics study of two samples of cassava peel heap from Nigeria and India. 3 Biotech 2019; 9:418. [PMID: 31696023 DOI: 10.1007/s13205-019-1941-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 10/10/2019] [Indexed: 11/28/2022] Open
Abstract
The microbiology of many cassava products and the wastes generated during the processing have been reported; however, majority of these reports used culture-dependent methods. This has resulted in a dearth of information on the bacterial diversity of cassava peels and peel heaps. Large amounts of cassava peels generated during the processing of cassava root are usually discharged on land or water as wastes and are allowed to rot in the open, especially in some developing countries. Culture-independent methods such as PCR-based amplification and sequencing of 16S rRNA genes, among others have been used in recent times to study the diversity of microbes in different environmental samples. In this study, bacterial isolates were screened for cellulase and xylanase enzyme activities on minimal agar and genomic DNA was isolated from cassava peel samples; metagenomics was carried out using MiSeq 2 × 300 with primers specific for V3-V4 bacterial region. Samples collected from Nigeria (AAG) had more species compared with samples from India (JHA) with 793 and 525 observed OTUs (operational taxonomic units), respectively. Five bacterial isolates from cassava peel-heap samples obtained from Ogbomoso, Nigeria showed no ability to produce cellulase enzyme, seven isolates from the Nigeria samples and three from Jorhat samples were positive for xylanase production; the highest amylase activity was shown by isolate AG18 (10,055 U/mL), while the lowest was recorded for isolate JA2 (2333 U/mL) with a significant difference observed in the amylase activities of isolates (p ≤ 0.05). Comparing the most abundant taxonomy for each of the samples at different taxonomic levels, the most abundant for sample AAG were phylum Firmicutes (42.11%), class Bacilli (41.27%), order Lactobacillales (33.11%), family Acetobacteraceae (31.30%), genus Acetobacter (30.02%) and unclassified species of Acetobacter (29.88%), while sample JHA had Actinobacteria (47.47%) as the highest phylum and class, order Actinomycetales (47.47%), family Brevibacteriaceae (46.97%), genus Brevibacterium (46.97%) and unclassified species of Brevibacterium (46.89%). This study provides an insight into the vast diversity of the bacteria associated with cassava peel heaps and the ability of some of the bacteria to produce selected extracellular enzymes.
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Affiliation(s)
- John Ayobami Amao
- 1Department of Microbiology, University of Ilorin, Ilorin, Nigeria
- 2Microbial Biotechnology Laboratory, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, India
| | - Madhumita Barooah
- 2Microbial Biotechnology Laboratory, Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, India
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191
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Lynch D, O’Connor PM, Cotter PD, Hill C, Field D, Begley M. Identification and characterisation of capidermicin, a novel bacteriocin produced by Staphylococcus capitis. PLoS One 2019; 14:e0223541. [PMID: 31618225 PMCID: PMC6795431 DOI: 10.1371/journal.pone.0223541] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/22/2019] [Indexed: 01/01/2023] Open
Abstract
One hundred human-derived coagulase negative staphylococci (CoNS) were screened for antimicrobial activity using agar-based deferred antagonism assays with a range of indicator bacteria. Based on the findings of the screen and subsequent well assays with cell free supernatants and whole cell extracts, one strain, designated CIT060, was selected for further investigation. It was identified as Staphylococcus capitis and herein we describe the purification and characterisation of the novel bacteriocin that the strain produces. This bacteriocin which we have named capidermicin was extracted from the cell-free supernatant of S. capitis CIT060 and purified to homogeneity using reversed-phase high performance liquid chromatography (RP-HPLC). Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometric (MS) analysis revealed that the capidermicin peptide has a mass of 5,464 Da. Minimal inhibitory concentration (MIC) experiments showed that capidermicin was active in the micro-molar range against all the Gram-positive bacteria that were tested. Antimicrobial activity was retained over a range of pHs (2–11) and temperatures (10–121°C x 15 mins). The draft genome sequence of S. capitis CIT060 was determined and the genes predicted to be involved in the biosynthesis of capidermicin were identified. These genes included the predicted capidermicin precursor gene, and genes that are predicted to encode a membrane transporter, an immunity protein and a transcriptional regulator. Homology searches suggest that capidermicin is a novel member of the family of class II leaderless bacteriocins.
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Affiliation(s)
- David Lynch
- Department of Biological Sciences, Cork Institute of Technology, Cork, Ireland
| | - Paula M. O’Connor
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Paul D. Cotter
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Des Field
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- * E-mail: (MB); (DF)
| | - Máire Begley
- Department of Biological Sciences, Cork Institute of Technology, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- * E-mail: (MB); (DF)
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192
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Bifidobacterium sp as Probiotic Agent - Roles and Applications. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.3.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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193
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Ahn S, Stepper J, Loo TS, Bisset SW, Patchett ML, Norris GE. Expression of Lactobacillus plantarum KW30 gcc genes correlates with the production of glycocin F in late log phase. FEMS Microbiol Lett 2019; 365:5144765. [PMID: 30364948 DOI: 10.1093/femsle/fny261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 10/24/2018] [Indexed: 12/24/2022] Open
Abstract
Antibacterial compounds known as bacteriocins are microbial inventions designed to reduce the competition for limited resources by inhibiting the growth of closely related bacteria. Glycocin F (GccF) is an unusually di-glycosylated bacteriocin produced in a lactic acid bacterium, Lactobacillus plantarum KW30 that has been shown to be resistant to extreme conditions. It is bacteriostatic rather than bactericidal, and all its post-translational modifications (a pair of nested disulfide bonds, and O-linked and S-linked N-acetylglucosamines) are required for full activity. Here, we examine a cluster of genes predicted to be responsible for GccF expression and maturation. The expression of eight genes, previously reported to make up the gcc operon, was profiled for their expression during cell culture. We found that all but one of the genes of the gcc cluster followed a pattern of expression that correlated with the stage of growth observed for the producer organism along with the increase in GccF secretion. We also found that most of the gcc genes are transcribed as a single unit. These data provide evidence that the gcc cluster genes gccABCDEF constitute a true operon for regulated GccF production, and explain the observed increase in GccF concentration that accompanies an increase in cell numbers.
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Affiliation(s)
- Soyeon Ahn
- Institute of Fundamental Sciences, Massey University, Tennent Drive, Palmerston North 4474, New Zealand
| | - Judith Stepper
- Institute of Fundamental Sciences, Massey University, Tennent Drive, Palmerston North 4474, New Zealand
| | - Trevor S Loo
- Institute of Fundamental Sciences, Massey University, Tennent Drive, Palmerston North 4474, New Zealand
| | - Sean W Bisset
- Institute of Fundamental Sciences, Massey University, Tennent Drive, Palmerston North 4474, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Mark L Patchett
- Institute of Fundamental Sciences, Massey University, Tennent Drive, Palmerston North 4474, New Zealand
| | - Gillian E Norris
- Institute of Fundamental Sciences, Massey University, Tennent Drive, Palmerston North 4474, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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194
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Wosinska L, Cotter PD, O'Sullivan O, Guinane C. The Potential Impact of Probiotics on the Gut Microbiome of Athletes. Nutrients 2019; 11:E2270. [PMID: 31546638 PMCID: PMC6835687 DOI: 10.3390/nu11102270] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/05/2019] [Accepted: 09/19/2019] [Indexed: 12/19/2022] Open
Abstract
There is accumulating evidence that physical fitness influences the gut microbiome and as a result, promotes health. Indeed, exercise-induced alterations in the gut microbiome can influence health parameters crucial to athletic performance, specifically, immune function, lower susceptibility to infection, inflammatory response and tissue repair. Consequently, maintenance of a healthy gut microbiome is essential for an athlete's health, training and performance. This review explores the effect of exercise on the microbiome while also investigating the effect of probiotics on various potential consequences associated with over-training in athletes, as well as their associated health benefits.
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Affiliation(s)
- Laura Wosinska
- Department of Biological Sciences, Cork Institute of Technology, Bishopstown, T12 P928 Cork, Ireland.
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland.
- APC Microbiome Ireland, T12 YT20 Cork, Ireland.
| | - Paul D Cotter
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland.
- APC Microbiome Ireland, T12 YT20 Cork, Ireland.
| | - Orla O'Sullivan
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Cork, Ireland.
- APC Microbiome Ireland, T12 YT20 Cork, Ireland.
| | - Caitriona Guinane
- Department of Biological Sciences, Cork Institute of Technology, Bishopstown, T12 P928 Cork, Ireland.
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195
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Wegh CAM, Geerlings SY, Knol J, Roeselers G, Belzer C. Postbiotics and Their Potential Applications in Early Life Nutrition and Beyond. Int J Mol Sci 2019; 20:E4673. [PMID: 31547172 PMCID: PMC6801921 DOI: 10.3390/ijms20194673] [Citation(s) in RCA: 248] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 12/15/2022] Open
Abstract
Postbiotics are functional bioactive compounds, generated in a matrix during fermentation, which may be used to promote health. The term postbiotics can be regarded as an umbrella term for all synonyms and related terms of these microbial fermentation components. Therefore, postbiotics can include many different constituents including metabolites, short-chain fatty acids (SCFAs), microbial cell fractions, functional proteins, extracellular polysaccharides (EPS), cell lysates, teichoic acid, peptidoglycan-derived muropeptides and pili-type structures. Postbiotics is also a rather new term in the '-biotics' field. Where consensus exists for the definitions of pre- and probiotics, this is not yet the case for postbiotics. Here we propose a working definition and review currently known postbiotic compounds, their proposed mechanisms, clinical evidence and potential applications. Research to date indicates that postbiotics can have direct immunomodulatory and clinically relevant effects and evidence can be found for the use of postbiotics in healthy individuals to improve overall health and to relief symptoms in a range of diseases such as infant colic and in adults atopic dermatitis and different causes of diarrhea.
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Affiliation(s)
- Carrie A M Wegh
- Laboratory of Microbiology, Wageningen University and Research, 6708 WE Wageningen, The Netherlands.
| | - Sharon Y Geerlings
- Laboratory of Microbiology, Wageningen University and Research, 6708 WE Wageningen, The Netherlands.
| | - Jan Knol
- Laboratory of Microbiology, Wageningen University and Research, 6708 WE Wageningen, The Netherlands.
- Danone-Nutricia Research, 3584 CT Utrecht, The Netherlands.
| | - Guus Roeselers
- Danone-Nutricia Research, 3584 CT Utrecht, The Netherlands.
| | - Clara Belzer
- Laboratory of Microbiology, Wageningen University and Research, 6708 WE Wageningen, The Netherlands.
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196
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Javůrková VG, Kreisinger J, Procházka P, Požgayová M, Ševčíková K, Brlík V, Adamík P, Heneberg P, Porkert J. Unveiled feather microcosm: feather microbiota of passerine birds is closely associated with host species identity and bacteriocin-producing bacteria. THE ISME JOURNAL 2019; 13:2363-2376. [PMID: 31127178 PMCID: PMC6775979 DOI: 10.1038/s41396-019-0438-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 04/12/2019] [Accepted: 05/03/2019] [Indexed: 11/12/2022]
Abstract
The functional relevance of microbiota is a key aspect for understanding host-microbiota interactions. Mammalian skin harbours a complex consortium of beneficial microorganisms known to provide health and immune-boosting advantages. As yet, however, little is known about functional microbial communities on avian feathers, including their co-evolution with the host and factors determining feather microbiota (FM) diversity. Using 16S rRNA profiling, we investigated how host species identity, phylogeny and geographic origin determine FM in free-living passerine birds. Moreover, we estimated the relative abundance of bacteriocin-producing bacteria (BPB) and keratinolytic feather damaging bacteria (FDB) and evaluated the ability of BPB to affect FM diversity and relative abundance of FDB. Host species identity was associated with feather bacterial communities more strongly than host geographic origin. FM functional properties differed in terms of estimated BPB and FDB relative abundance, with both showing interspecific variation. FM diversity was negatively associated with BPB relative abundance across species, whereas BPB and FDB relative abundance was positively correlated. This study provides the first thorough evaluation of antimicrobial peptides-producing bacterial communities inhabiting the feather integument, including their likely potential to mediate niche-competition and to be associated with functional species-specific feather microbiota in avian hosts.
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Affiliation(s)
- Veronika Gvoždíková Javůrková
- Faculty of Agrobiology, Food and Natural Resources, Department of Animal Science, Czech University of Life Sciences, Kamýcká 129, 165 00, Prague-Suchdol, Czech Republic.
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 65, Brno, Czech Republic.
| | - Jakub Kreisinger
- Faculty of Science, Department of Zoology, Charles University, Viničná 7, 128 44, Prague, Czech Republic
| | - Petr Procházka
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 65, Brno, Czech Republic
| | - Milica Požgayová
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 65, Brno, Czech Republic
| | - Kateřina Ševčíková
- Faculty of Science, Department of Zoology, Palacký University, 17. listopadu 50, 771 46, Olomouc, Czech Republic
| | - Vojtěch Brlík
- Institute of Vertebrate Biology, Czech Academy of Sciences, Květná 8, 603 65, Brno, Czech Republic
| | - Peter Adamík
- Faculty of Science, Department of Zoology, Palacký University, 17. listopadu 50, 771 46, Olomouc, Czech Republic
| | - Petr Heneberg
- Third Faculty of Medicine, Charles University, Ruská 87, 100 00, Prague, Czech Republic
| | - Jiří Porkert
- Home address: Gočárova třída 542/12, 500 02, Hradec Králové, Czech Republic
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197
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Examination of the Expression of Immunity Genes and Bacterial Profiles in the Caecum of Growing Chickens Infected with Salmonella Enteritidis and Fed a Phytobiotic. Animals (Basel) 2019; 9:ani9090615. [PMID: 31462004 PMCID: PMC6770741 DOI: 10.3390/ani9090615] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 08/05/2019] [Accepted: 08/10/2019] [Indexed: 01/10/2023] Open
Abstract
Simple Summary Salmonellosis is among the most common infectious poultry diseases that also represent a high risk to human health. The pathological process caused by Salmonella enterica serovar Enteritidis (SE) triggers in the caecum the expression of certain genes, e.g., avian β-defensins (gallinacins), cytokines (interleukins), etc. On the other hand, gut microbiota influences the infection potential of pathogens. The present study aimed at revealing the differential expression of genes associated with the immune system and changes in the bacterial communities in the intestine of growing chickens in response to SE infection. We also tested a feed additive, essential oils-based phytobiotic Intebio, as a potential alternative to antibiotics and showed effects of its administration on the caecal microbiome composition and the expression of some genes related to immunity. The phytobiotic showed its efficiency for application in poultry rearing and production. Abstract This study was performed to investigate the differential expression of eight immunity genes and the bacterial profiles in the caecum of growing chickens challenged with Salmonella enterica serovar Enteritidis (SE) at 1 and 23 days post inoculation (dpi) in response to SE infection at 19 days of age and administration of the phytobiotic Intebio. Following infection, the genes CASP6 and IRF7 were upregulated by greater than twofold. Chicks fed Intebio showed at 1 dpi upregulation of AvBD10, IL6, IL8L2, CASP6 and IRF7. At 23 dpi, expression of AvBD11, IL6, IL8L2, CASP6 and IRF7 lowered in the experiment subgroups as compared with the control. Examination of the caecal contents at 1 dpi demonstrated a significant decrease in the microbial biodiversity in the infected subgroup fed normal diet. Bacterial content of Lactobacillus and Bacillus declined, while that of Enterobacteriaceae rose. In the infected subgroup fed Intebio, a pronounced change in composition of the microflora was not observed. In the early infection stages, the phytobiotic seemed to promote response to infection. Subsequently, an earlier suppression of the inflammatory reaction took place in chickens fed Intebio. Thus, use of Intebio as a drug with phytobiotic activity in chickens, including those infected with Salmonella, proved to be promising.
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198
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Cameron A, Zaheer R, Adator EH, Barbieri R, Reuter T, McAllister TA. Bacteriocin Occurrence and Activity in Escherichia coli Isolated from Bovines and Wastewater. Toxins (Basel) 2019; 11:toxins11080475. [PMID: 31443193 PMCID: PMC6723558 DOI: 10.3390/toxins11080475] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/07/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023] Open
Abstract
The increasing prevalence of antimicrobial resistant (AMR) E. coli and related Enterobacteriaceae is a serious problem necessitating new mitigation strategies and antimicrobial agents. Bacteriocins, functionally diverse toxins produced by most microbes, have long been studied for their antimicrobial potential. Bacteriocins have once again received attention for their role as probiotic traits that could mitigate pathogen burden and AMR bacteria in livestock. Here, bacteriocins were identified by activity screening and whole-genome sequencing of bacteriocin-producers capable of inhibiting bovine and wastewater E. coli isolates enriched for resistance to cephalosporins. Producers were tested for activity against shiga toxin-producing E. coli (STEC), AMR E. coli, and related enteric pathogens. Multiple bacteriocins were found in 14 out of 90 E. coli isolates tested. Based on alignment within BACTIBASE, colicins M, B, R, Ia, Ib, S4, E1, E2, and microcins V, J25, and H47, encoded by identical, variant, or truncated genes were identified. Although some bacteriocin-producers exhibited activity against AMR and STEC E. coli in agar-based assays, most did not. Despite this idiosyncrasy, liquid co-cultures of all bacteriocinogenic isolates with luciferase-expressing generic (K12) or STEC E. coli (EDL933) resulted in inhibited growth or reduced viability. These abundant toxins may have real potential as next-generation control strategies in livestock production systems but separating the bacteriocin from its immunity gene may be necessary for such a strategy to be effective.
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Affiliation(s)
- Andrew Cameron
- Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Rahat Zaheer
- Lethbridge Research and Development Centre, Lethbridge, AB T1J 4B1, Canada
| | - Emelia H Adator
- Department of Food Science and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - Ruth Barbieri
- Lethbridge Research and Development Centre, Lethbridge, AB T1J 4B1, Canada
| | - Tim Reuter
- Alberta Agriculture and Forestry, Lethbridge, AB T1J 4V6, Canada
| | - Tim A McAllister
- Lethbridge Research and Development Centre, Lethbridge, AB T1J 4B1, Canada.
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199
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Angelopoulou A, Warda AK, Hill C, Ross RP. Non-antibiotic microbial solutions for bovine mastitis – live biotherapeutics, bacteriophage, and phage lysins. Crit Rev Microbiol 2019; 45:564-580. [DOI: 10.1080/1040841x.2019.1648381] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Angeliki Angelopoulou
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Co. Cork, Ireland
| | - Alicja K. Warda
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Colin Hill
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - R. Paul Ross
- School of Microbiology, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Co. Cork, Ireland
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200
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Dreyer L, Smith C, Deane SM, Dicks LMT, van Staden AD. Migration of Bacteriocins Across Gastrointestinal Epithelial and Vascular Endothelial Cells, as Determined Using In Vitro Simulations. Sci Rep 2019; 9:11481. [PMID: 31391488 PMCID: PMC6685951 DOI: 10.1038/s41598-019-47843-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 07/24/2019] [Indexed: 01/18/2023] Open
Abstract
Little is known about the migration of bacteriocins across human cells. In this study, we report on migration of three bacteriocins nisin, plantaricin 423 and bacST4SA across colonic adenocarcinoma (Caco-2) cells and human umbilical vein endothelial cells (HUVECs). Bacteriocins were fluorescently labelled while still maintaining antimicrobial activity. Migration of fluorescently labelled bacteriocins across monolayers was assessed in vitro using transmigration well inserts. After 3 h, 75% of nisin, 85% of plantaricin 423 and 82% of bacST4SA migrated across the Caco-2 cell monolayer. Over the same time span, 88% nisin, 93% plantaricin 423 and 91% bacST4SA migrated across the HUVEC monolayer. The viability of both cell types remained unchanged when exposed to 50 µM of nisin, plantaricin 423 or bacST4SA. The effect of human plasma on bacteriocin activity was also assessed. Activity loss was dependent on bacteriocin type and concentration, with the class-IIa bacteriocins retaining more activity compared to nisin. This is the first report of bacteriocins migrating across simulated gastrointestinal- and vascular-barriers. This study provides some of the first evidence that bacteriocins are capable of crossing the gut-blood-barrier. However, in vivo studies need to be performed to confirm these findings and expand on the role of bacteriocin migration across cell barriers.
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Affiliation(s)
- Leané Dreyer
- Department of Microbiology, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Carine Smith
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Shelly M Deane
- Department of Microbiology, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Leon M T Dicks
- Department of Microbiology, Stellenbosch University, Stellenbosch, 7600, South Africa.
| | - Anton D van Staden
- Department of Microbiology, Stellenbosch University, Stellenbosch, 7600, South Africa.
- Department of Physiological Sciences, Stellenbosch University, Stellenbosch, 7600, South Africa.
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