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Kim R. Advanced Organotypic In Vitro Model Systems for Host-Microbial Coculture. BIOCHIP JOURNAL 2023; 17:1-27. [PMID: 37363268 PMCID: PMC10201494 DOI: 10.1007/s13206-023-00103-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 06/28/2023]
Abstract
In vitro model systems have been advanced to recapitulate important physiological features of the target organ in vivo more closely than the conventional cell line cultures on a petri dish. The advanced organotypic model systems can be used as a complementary or alternative tool for various testing and screening. Numerous data from germ-free animal studies and genome sequencings of clinical samples indicate that human microbiota is an essential part of the human body, but current in vitro model systems rarely include them, which can be one of the reasons for the discrepancy in the tissue phenotypes and outcome of therapeutic intervention between in vivo and in vitro tissues. A coculture model system with appropriate microbes and host cells may have great potential to bridge the gap between the in vitro model and the in vivo counterpart. However, successfully integrating two species in one system introduces new variables to consider and poses new challenges to overcome. This review aims to provide perspectives on the important factors that should be considered for developing organotypic bacterial coculture models. Recent advances in various organotypic bacterial coculture models are highlighted. Finally, challenges and opportunities in developing organotypic microbial coculture models are also discussed.
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Affiliation(s)
- Raehyun Kim
- Department of Biological and Chemical Engineering, Hongik University, Sejong, Republic of Korea
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2
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Mirzaei R, Kavyani B, Nabizadeh E, Kadkhoda H, Asghari Ozma M, Abdi M. Microbiota metabolites in the female reproductive system: Focused on the short-chain fatty acids. Heliyon 2023; 9:e14562. [PMID: 36967966 PMCID: PMC10031489 DOI: 10.1016/j.heliyon.2023.e14562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 03/15/2023] Open
Abstract
Several disorders have been linked to modifications in the gut microbial imbalance, intestinal epithelium, and host immune system. In this regard, microbiota derived short-chain fatty acids (SCFAs) play a key function in the regulation of histone deacetylases (HDACs), which affect modulation of immunity and regulation of inflammatory responses in the intestine and other organs. Studies examining the metabolites produced by polymicrobial bacterial vaginosis (BV) states and Lactobacillus-dominated microbiota have noted a dramatic reduction of lactic acid and a shift toward SCFA synthesis. Along with higher levels of SCFAs, acetate is typically the main metabolite in the cervicovaginal fluid of women with symptomatic bacterial vaginosis. The fact that SCFAs made by the vaginal microbiota have been shown to exhibit antibacterial and immune-modulating properties suggests that they may have promise as indicators of disease and/or disease susceptibility. In this review, we overview and summarize the current findings on the detrimental or protective roles of microbiota metabolites especially SCFAs in the health and disease of the female reproductive system.
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Affiliation(s)
- Rasoul Mirzaei
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Batoul Kavyani
- Department of Medical Microbiology (Bacteriology & Virology), Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Edris Nabizadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hiva Kadkhoda
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Asghari Ozma
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Abdi
- Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
- Corresponding author.
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3
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Handa VL, Brotman RM, Ravel J, Tuddenham S. Does Bacterial Vaginosis Contribute to Urinary Tract Infection? Curr Infect Dis Rep 2023. [DOI: 10.1007/s11908-022-00795-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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4
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Antagonistic activity and mechanism of Lactobacillus rhamnosus SQ511 against Salmonella enteritidis. 3 Biotech 2022; 12:126. [PMID: 35573802 DOI: 10.1007/s13205-022-03176-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/26/2022] [Indexed: 11/01/2022] Open
Abstract
Salmonella enteritidis is an important food-borne pathogen. The use of antibiotics is a serious threat to animal and human health, owing to the existence of resistant strains and drug residues. Lactic acid bacteria, as a new alternative to antibiotics, has attracted much attention. In this study, we investigated the antibacterial potential and underlying mechanism of Lactobacillus rhamnosus SQ511 against S. enteritidis ATCC13076. The results revealed that L. rhamnosus SQ511 significantly inhibited S. enteritidis ATCC13076 growth or even caused death. Laser confocal microscopic imaging revealed that the cell-free supernatant (CFS) of L. rhamnosus SQ511 elevated the reactive oxygen species level and bacterial membrane depolarization in S. enteritidis ATCC13076, leading to cell death. Furthermore, L. rhamnosus SQ511 CFS had severely deleterious effects on S. enteritidis ATCC13076, causing membrane destruction and the release of cellular materials. In addition, L. rhamnosus SQ511 CFS significantly reduced the expression of virulence, motility, adhesion, and invasion genes in S. enteritidis ATCC13076 (P < 0.05), and considerably inhibited motility and biofilm formation capacity (P < 0.05). Thus, antimicrobial compounds produced by L. rhamnosus SQ511 strongly inhibited S. enteritidis growth, mobility, biofilm formation, membrane disruption, and reactive oxygen species generation, and regulated virulence-related gene expressions, presenting promising applications as a probiotic agent.
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5
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Plesniarski A, Siddik AB, Su RC. The Microbiome as a Key Regulator of Female Genital Tract Barrier Function. Front Cell Infect Microbiol 2022; 11:790627. [PMID: 34976864 PMCID: PMC8719631 DOI: 10.3389/fcimb.2021.790627] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
The microbiome, the collection of microbial species at a site or compartment, has been an underappreciated realm of human health up until the last decade. Mounting evidence suggests the microbiome has a critical role in regulating the female genital tract (FGT) mucosa's function as a barrier against sexually transmitted infections (STIs) and pathogens. In this review, we provide the most recent experimental systems and studies for analyzing the interplay between the microbiome and host cells and soluble factors with an influence on barrier function. Key components, such as microbial diversity, soluble factors secreted by host and microbe, as well as host immune system, all contribute to both the physical and immunologic aspects of the FGT mucosal barrier. Current gaps in what is known about the effects of the microbiome on FGT mucosal barrier function are compared and contrasted with the literature of the gut and respiratory mucosa. This review article presents evidence supporting that the vaginal microbiome, directly and indirectly, contributes to how well the FGT protects against infection.
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Affiliation(s)
- Andrew Plesniarski
- JC Wilt Infectious Diseases Research Centre, National Microbiology Laboratories, Public Health Agency of Canada, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Abu Bakar Siddik
- JC Wilt Infectious Diseases Research Centre, National Microbiology Laboratories, Public Health Agency of Canada, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Ruey-Chyi Su
- JC Wilt Infectious Diseases Research Centre, National Microbiology Laboratories, Public Health Agency of Canada, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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6
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Sornsenee P, Chatatikun M, Mitsuwan W, Kongpol K, Kooltheat N, Sohbenalee S, Pruksaphanrat S, Mudpan A, Romyasamit C. Lyophilized cell-free supernatants of Lactobacillus isolates exhibited antibiofilm, antioxidant, and reduces nitric oxide activity in lipopolysaccharide-stimulated RAW 264.7 cells. PeerJ 2021; 9:e12586. [PMID: 34909285 PMCID: PMC8641486 DOI: 10.7717/peerj.12586] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/11/2021] [Indexed: 11/20/2022] Open
Abstract
Background Probiotics can release bioactive substances known as postbiotics, which can inhibit pathogenic microorganisms, improve immunomodulation, reduce antioxidant production, and modulate the gut microbiota. Methods In this study, we evaluated the in vitro antimicrobial effects, antioxidant activity, and anti-inflammatory potential of 10 lyophilized cell-free supernatants (LCFS) of Lactobacillus isolates. LCFS was obtained via centrifugation and subsequent lyophilization of the supernatant collected from the culture medium ofeach isolate. The antibacterial and antibiofilm activities of the LCFS were determined using broth microdilution. The antioxidant potential was evaluated by measuring the total phenolic and flavonoid contents and 2,2-Diphennyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) radical cation (ABTS+) radical scavenging activities. Results All the isolates were able to inhibit the four tested pathogens. The isolates exhibited strong antibiofilm activity and eradicated the biofilms formed by Acinetobacter buamannii and Escherichia coli. All the prepared Lactobacillus LCFS contained phenols and flavonoids and exhibited antioxidant activities in the DPPH and ABTS+ radical scavenging assays. The MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay revealed that LCFS was not cytotoxic to RAW 264.7 cells. In addition, the ten Lactobacillus LCFS decreased the production of nitric oxide. Conclusions All the isolates have beneficial properties. This research sheds light on the role of postbiotics in functional fermented foods and pharmaceutical products. Further research to elucidate the precise molecular mechanisms of action of probiotics is warranted.
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Affiliation(s)
- Phoomjai Sornsenee
- Department of Family and Preventive Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Moragot Chatatikun
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,Center of Excellence Research for Meliodosis (CERM), Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,Research Excellence Center for Innovation and Health Product, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Watcharapong Mitsuwan
- Research Center of Excellence in Innovation of Essential Oil, Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,One Health Research Center, Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,Akkhraratchakumari Veterinary College, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Kantapich Kongpol
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,Research Excellence Center for Innovation and Health Product, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Nateelak Kooltheat
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,Research Excellence Center for Innovation and Health Product, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Sasirat Sohbenalee
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Supawita Pruksaphanrat
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Amron Mudpan
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Chonticha Romyasamit
- Department of Medical Technology, School of Allied Health Sciences, Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,Center of Excellence Research for Meliodosis (CERM), Walailak University, Thasala, Nakhon Si Thammarat, Thailand.,Research Center of Excellence in Innovation of Essential Oil, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
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7
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Jacobson D, Moore K, Gunderson C, Rowland M, Austin R, Honap TP, Xu J, Warinner C, Sankaranarayanan K, Lewis Jr CM. Shifts in gut and vaginal microbiomes are associated with cancer recurrence time in women with ovarian cancer. PeerJ 2021; 9:e11574. [PMID: 34178459 PMCID: PMC8214851 DOI: 10.7717/peerj.11574] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 05/18/2021] [Indexed: 01/08/2023] Open
Abstract
Many studies investigating the human microbiome-cancer interface have focused on the gut microbiome and gastrointestinal cancers. Outside of human papillomavirus driving cervical cancer, little is known about the relationship between the vaginal microbiome and other gynecological cancers, such as ovarian cancer. In this retrospective study, we investigated the relationship between ovarian cancer, platinum-free interval (PFI) length, and vaginal and gut microbiomes. We observed that Lactobacillus-dominated vaginal communities were less common in women with ovarian cancer, as compared to existing datasets of similarly aged women without cancer. Primary platinum-resistance (PPR) disease is strongly associated with survivability under one year, and we found over one-third of patients with PPR (PFI < 6 months, n = 17) to have a vaginal microbiome dominated by Escherichia (>20% relative abundance), while only one platinum super-sensitive (PFI > 24 months, n = 23) patient had an Escherichia-dominated microbiome. Additionally, L. iners was associated with little, or no, gross residual disease, while other Lactobacillus species were dominant in women with >1 cm gross residual disease. In the gut microbiome, we found patients with PPR disease to have lower phylogenetic diversity than platinum-sensitive patients. The trends we observe in women with ovarian cancer and PPR disease, such as the absence of Lactobacillus and presence of Escherichia in the vaginal microbiome as well as low gut microbiome phylogenetic diversity have all been linked to other diseases and/or pro-inflammatory states, including bacterial vaginosis and autoimmune disorders. Future prospective studies are necessary to explore the translational potential and underlying mechanisms driving these associations.
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Affiliation(s)
- David Jacobson
- Department of Anthropology, University of Oklahoma, Norman, Oklahoma, United States
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, Norman, Oklahoma, United States
| | - Kathleen Moore
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Camille Gunderson
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Michelle Rowland
- Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
- Saint Luke’s Hospital of Kansas City, Kansas City, Missouri, United States
| | - Rita Austin
- Department of Anthropology, University of Oklahoma, Norman, Oklahoma, United States
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, Norman, Oklahoma, United States
| | - Tanvi Prasad Honap
- Department of Anthropology, University of Oklahoma, Norman, Oklahoma, United States
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, Norman, Oklahoma, United States
| | - Jiawu Xu
- Ragon Institute, MGH, MIT, and Harvard, Cambridge, Massachusetts, United States
- Harvard Medical School, Harvard University, Boston, Massachusetts, United States
| | - Christina Warinner
- Department of Anthropology, Harvard University, Cambridge, Massachusetts, United States
| | - Krithivasan Sankaranarayanan
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, Norman, Oklahoma, United States
- Department of Microbiology and Plant Biology, University of Oklahoma, Norman, Oklahoma, United States
| | - Cecil M. Lewis Jr
- Department of Anthropology, University of Oklahoma, Norman, Oklahoma, United States
- Laboratories of Molecular Anthropology and Microbiome Research (LMAMR), University of Oklahoma, Norman, Oklahoma, United States
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8
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Shi S, Cheng B, Gu B, Sheng T, Tu J, Shao Y, Qi K, Zhou D. Evaluation of the probiotic and functional potential of Lactobacillus agilis 32 isolated from pig manure. Lett Appl Microbiol 2021; 73:9-19. [PMID: 33098675 DOI: 10.1111/lam.13422] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 12/16/2022]
Abstract
Escherichia coli is a symbiotic bacterium in humans and animals and an important pathogen of humans and animals. Prevention and suppression of E. coli infection is of great concern. In this study, we isolated a strain of Lactobacillus agilis 32 from pig manure and evaluated its biological characteristics, and found that its bacterial survival rate was 25% after 4 h of treatment at pH 2, and under the condition of 0·5% bile concentration, its survival rate exceeds 30%. In addition, L. agilis 32 has a cell surface hydrophobicity of 77·8%, and exhibits 67·1% auto-aggregation and 63·2% aggregation with Enterotoxigenic E. coli 10 (ETEC 10). FITC fluorescence labelling showed that the fluorescence intensity of cecum was significantly higher than that of duodenum, jejunum or colon (P < 0·05), but no significant difference from ileum. Lactobacillus agilis 32 bacterial culture and CFS showed average inhibition zone diameters of 14·2 and 15·4 mm respectively. Lactobacillus agilis 32 CFS treatment can significantly reduce the pathogenicity of ETEC 10. These results show that L. agilis 32 is an active and potential probiotic, and it has a good antibacterial effect on ETEC10, which provides basic research for probiotics to prevent and treat intestinal diarrhoea pathogen infection.
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Affiliation(s)
- S Shi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China.,College of Life Sciences, Anqing Normal University, Anqing, P. R. China
| | - B Cheng
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - B Gu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - T Sheng
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - J Tu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - Y Shao
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - K Qi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, P. R. China
| | - D Zhou
- College of Life Sciences, Anqing Normal University, Anqing, P. R. China
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9
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Bauza-Kaszewska J, Żary-Sikorska E, Gugolek A, Ligocka A, Kosmala M, Karlińska E, Fotschki B, Juśkiewicz J. Synergistic Antimicrobial Effect of Raspberry (Rubus idaeus L., Rosaceae) Preparations and Probiotic Bacteria on Enteric Pathogens. POL J FOOD NUTR SCI 2021. [DOI: 10.31883/pjfns/132897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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10
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Ding T, Li Y. Beneficial effect and mechanism of walnut oligopeptide on Lactobacillus plantarum Z7. Food Sci Nutr 2021; 9:672-681. [PMID: 33598152 PMCID: PMC7866578 DOI: 10.1002/fsn3.2029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 11/10/2020] [Indexed: 01/08/2023] Open
Abstract
Prebiotics can stimulate the growth and activity of probiotics and have a variety of physiological functions. However, the study of walnut oligopeptides as prebiotics to promote probiotics is rarely reported. Therefore, in order to explore the beneficial effect of walnut oligopeptide (WOPs) on Lactobacillus plantarum Z7, WOPs was added to the medium of L. plantarum Z7, and the utilization of WOPs, the effect of WOPs on the biofilm, extracellular polymeric substances, and bacterial death were explored. The results showed that the growth-promoting effect was strengthened with the increasing concentrations of WOPs. The content of bacterial biofilm and EPS increased significantly, and the number of dead bacteria decreased. The beneficial effect of WOPs was probably because that it enhanced the secretion of biofilm which was regulated by bacterial quorum sensing system and promoted the ability of bacteria to resist the adverse environment, thus promoting the growth and reproduction of bacteria.
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Affiliation(s)
- Ting Ding
- Department of Nutrition and Food HygieneSchool of Public HealthPeking UniversityBeijingChina
| | - Yong Li
- Department of Nutrition and Food HygieneSchool of Public HealthPeking UniversityBeijingChina
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11
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Kuprys PV, Cannon AR, Shieh J, Iftekhar N, Park SK, Eberhardt JM, Ding X, Choudhry MA. Alcohol decreases intestinal ratio of Lactobacillus to Enterobacteriaceae and induces hepatic immune tolerance in a murine model of DSS-colitis. Gut Microbes 2020; 12:1-16. [PMID: 33180663 PMCID: PMC7671045 DOI: 10.1080/19490976.2020.1838236] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 09/22/2020] [Accepted: 10/01/2020] [Indexed: 02/08/2023] Open
Abstract
Alcohol can potentiate disease in a mouse model of dextran sodium sulfate (DSS) colitis; however, the underlying mechanism remains to be established. In this study, we assessed whether the potentiated disease could be related to Enterobacteriaceae and Lactobacillus, as changes in their relative abundance can impact intestinal health. We also assessed whether the intestinal barrier is compromised after alcohol and DSS as it may increase bacterial translocation and liver inflammation. Mice were administered DSS followed by binge ethanol or water vehicle, generating four experimental groups: (Control+Vehicle, Control+Ethanol, DSS+Vehicle, DSS+Ethanol). DNA was isolated from colon and cecal contents followed by qPCR for levels of Enterobacteriaceae and Lactobacillus. Colon and liver sections were taken for histology. Intestinal epithelial cells were isolated from the colon for RNA expression. DSS+Ethanol cecal contents exhibited a 1 log increase in Enterobacteriaceae (p < .05), a 0.5 log decrease in Lactobacillus, and a 1.5 log decrease (p < .05) in the Lactobacillus:Enterobacteriaceae ratio compared to DSS+Vehicle, with similar trends in colon contents. These changes correlated with shorter colons and more weight loss. Irrespective of ethanol administration, DSS compromised the mucosal barrier integrity, however only DSS+Ethanol exhibited significant increases in circulating endotoxin. Furthermore, the livers of DSS+Ethanol mice had significantly increased levels of triglycerides, mononuclear cells, yet exhibited significantly depressed expression of liver inflammatory pathways, suggestive of tolerance induction, compared to mice receiving DSS+Vehicle. Our results suggest that ethanol after DSS colitis increases the intestinal burden of Enterobacteriaceae which may contribute to intestinal and liver damage, and the induction of immune tolerance.
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Affiliation(s)
- Paulius V. Kuprys
- Alcohol Research Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
| | - Abigail R. Cannon
- Alcohol Research Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
| | - Jennifer Shieh
- Alcohol Research Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
| | - Noama Iftekhar
- Alcohol Research Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
| | - Sun K. Park
- Alcohol Research Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
| | - Joshua M. Eberhardt
- Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
| | - Xianzhong Ding
- Department of Pathology, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
| | - Mashkoor A. Choudhry
- Alcohol Research Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Burn and Shock Trauma Research Institute, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Department of Surgery, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
- Integrative Cell Biology Program, Loyola University Chicago Health Sciences Campus, Maywood, IL, USA
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12
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Kalaycı Yüksek F, Gümüş D, Gündoğan Gİ, Anğ Küçüker M. Cell-Free Lactobacillus sp Supernatants Modulate Staphylococcus aureus Growth, Adhesion and Invasion to Human Osteoblast (HOB) Cells. Curr Microbiol 2020; 78:125-132. [PMID: 33108492 DOI: 10.1007/s00284-020-02247-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 10/09/2020] [Indexed: 11/24/2022]
Abstract
The increase of antibiotic resistance has become a problem. Probiotic bacteria play an important role in preventive/supportive medicine. Therefore, we examined the inhibitory effects of four different Lactobacillus species' (L. acidophilus-La, L. plantarum-Lp, L. fermentum-Lf and L. rhamnosus-Lr) cell-free supernatants (CFSs) on growth, adhesion, invasion, and biofilm formation of Staphylococcus aureus and effects of S. aureus, CFSs, and S. aureus-CFSs co-existence on human osteoblast (HOB) cell viability. Growth alterations were measured spectrophotometrically. Adhesive/invasive bacterial counts were detected by colony counting. Biofilm was evaluated using microtiter plate assay. The MTT assay was used for detection of HOB cell viability. The growth of MSSA significantly (P < 0.01) decreased in the presence of two CFSs (Lf and Lr) (P < 0.01); the growth of MRSA significantly (P < 0.05) reduced in the presence of La CFSs. All tested CFSs were found to reduce adhesion and invasion of MSSA (P < 0.0001). The adhesion of MRSA was enhanced (P < 0.0001) in the presence of all CFSs except La and the invasion of MRSA was decreased (P < 0.01) in the presence of Lr and Lf CFSs. All tested CFSs were shown to inhibit biofilm formation significantly (P < 0.0001). The reduction of S. aureus infected HOB cell viability and exposed to all CFSs except Lr that was found to be significant (P < 0.0001). The viability of HOB cell during co-incubation with MSSA and CFSs was shown to be decreased significantly. However co-existence of MRSA and CFSs did not alter HOB cell viability. These results suggested that lactobacilli as probiotics have low protective effects on MRSA-infected host cells.
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Affiliation(s)
- Fatma Kalaycı Yüksek
- Department of Medical Microbiology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey.
| | - Defne Gümüş
- Department of Medical Microbiology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey
| | - Gül İpek Gündoğan
- Department of Histology and Embryology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey
| | - Mine Anğ Küçüker
- Department of Medical Microbiology, Medical Faculty, Istanbul Yeni Yüzyıl University, Istanbul, Turkey
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Vagios S, Hesham H, Mitchell C. Understanding the potential of lactobacilli in recurrent UTI prevention. Microb Pathog 2020; 148:104544. [PMID: 33010368 DOI: 10.1016/j.micpath.2020.104544] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
Urinary tract infections (UTIs) are one of the most common infections in women. The only proven preventive strategy for recurrent UTIs is prophylactic antibiotics. Given growing antibiotic resistance, the use of probiotics has been proposed as an alternative to antibiotics. Herein, we discuss the current evidence to support the possibility that exogenous lactobacilli may limit the pathogenicity of uropathogens such as E. coli. Probiotics appear to have a significant potential in prevention of recurrent UTI, however, additional data are needed to understand how they can be effectively used in clinical practice.
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Affiliation(s)
- Stylianos Vagios
- Department of Obstetrics & Gynecology, Massachusetts General Hospital, Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, USA
| | - Helai Hesham
- Department of Obstetrics & Gynecology, Massachusetts General Hospital, Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, USA
| | - Caroline Mitchell
- Department of Obstetrics & Gynecology, Massachusetts General Hospital, Vincent Center for Reproductive Biology, Massachusetts General Hospital Research Institute, USA.
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14
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Frerejacques M, Rousselle C, Gauthier L, Cottet-Emard S, Derobert L, Roynette A, Lerch TZ, Changey F. Human Skin Bacterial Community Response to Probiotic ( Lactobacillus reuteri DSM 17938) Introduction. Microorganisms 2020; 8:microorganisms8081223. [PMID: 32796763 PMCID: PMC7465198 DOI: 10.3390/microorganisms8081223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 12/12/2022] Open
Abstract
The introduction of a strain or consortium has often been considered as a potential solution to restore microbial ecosystems. Extensive research on the skin microbiota has led to the development of probiotic products (with live bacterial strains) that are likely to treat dysbiosis. However, the effects of such introductions on the indigenous microbiota have not yet been investigated. Here, through a daily application of Lactobacillus reuteri DSM 17938 on volunteers’ forearm skin, we studied in vivo the impact of a probiotic on the indigenous skin bacterial community diversity using Terminal-Restriction Fragment Length Polymorphism (T-RFLP) for 3 weeks. The results demonstrate that Lactobacillus reuteri DSM 17938 inoculum had a transient effect on the indigenous community, as the resilience phenomenon was observed within the skin microbiota. Moreover, Lactobacillus reuteri DSM 17938 monitoring showed that, despite a high level of detection after 2 weeks of application, thereafter the colonization rate drops drastically. The probiotic colonization rate was correlated significantly to the effect on the indigenous microbial community structure. These preliminary results suggest that the success of probiotic use and the potential health benefits resides in the interactions with the human microbiota.
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Affiliation(s)
- Marie Frerejacques
- EBInnov, School of Industrial Biology—EBI, 49 Avenue des Genottes, 95800 Cergy, France; (M.F.); (C.R.); (L.G.); (S.C.-E.); (L.D.); (A.R.)
| | - Camille Rousselle
- EBInnov, School of Industrial Biology—EBI, 49 Avenue des Genottes, 95800 Cergy, France; (M.F.); (C.R.); (L.G.); (S.C.-E.); (L.D.); (A.R.)
| | - Loüen Gauthier
- EBInnov, School of Industrial Biology—EBI, 49 Avenue des Genottes, 95800 Cergy, France; (M.F.); (C.R.); (L.G.); (S.C.-E.); (L.D.); (A.R.)
| | - Salomé Cottet-Emard
- EBInnov, School of Industrial Biology—EBI, 49 Avenue des Genottes, 95800 Cergy, France; (M.F.); (C.R.); (L.G.); (S.C.-E.); (L.D.); (A.R.)
| | - Léa Derobert
- EBInnov, School of Industrial Biology—EBI, 49 Avenue des Genottes, 95800 Cergy, France; (M.F.); (C.R.); (L.G.); (S.C.-E.); (L.D.); (A.R.)
| | - Anne Roynette
- EBInnov, School of Industrial Biology—EBI, 49 Avenue des Genottes, 95800 Cergy, France; (M.F.); (C.R.); (L.G.); (S.C.-E.); (L.D.); (A.R.)
| | - Thomas Z. Lerch
- IEES-Paris, UMR 7618 (Sorbonne Université, IRD, CNRS, INRA, UPEC, Université de Paris), 61 Avenue du Général de Gaulle, 94010 Créteil, France;
| | - Frédérique Changey
- EBInnov, School of Industrial Biology—EBI, 49 Avenue des Genottes, 95800 Cergy, France; (M.F.); (C.R.); (L.G.); (S.C.-E.); (L.D.); (A.R.)
- Correspondence: ; Tel.: +33-01-85-76-66-90
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15
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González de Llano D, Moreno-Arribas MV, Bartolomé B. Cranberry Polyphenols and Prevention against Urinary Tract Infections: Relevant Considerations. Molecules 2020; 25:E3523. [PMID: 32752183 PMCID: PMC7436188 DOI: 10.3390/molecules25153523] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 12/16/2022] Open
Abstract
Cranberry (Vaccinium macrocarpon) is a distinctive source of polyphenols as flavonoids and phenolic acids that has been described to display beneficial effects against urinary tract infections (UTIs), the second most common type of infections worldwide. UTIs can lead to significant morbidity, especially in healthy females due to high rates of recurrence and antibiotic resistance. Strategies and therapeutic alternatives to antibiotics for prophylaxis and treatment against UTIs are continuously being sought after. Different to cranberry, which have been widely recommended in traditional medicine for UTIs prophylaxis, probiotics have emerged as a new alternative to the use of antibiotics against these infections and are the subject of new research in this area. Besides uropathogenic Escherichia coli (UPEC), the most common bacteria causing uncomplicated UTIs, other etiological agents, such as Klebsiellapneumoniae or Gram-positive bacteria of Enterococcus and Staphylococcus genera, seem to be more widespread than previously appreciated. Considerable current effort is also devoted to the still-unraveled mechanisms that are behind the UTI-protective effects of cranberry, probiotics and their new combined formulations. All these current topics in the understanding of the protective effects of cranberry against UTIs are reviewed in this paper. Further progresses expected in the coming years in these fields are also discussed.
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Affiliation(s)
- Dolores González de Llano
- Institute of Food Science Research (CIAL), CSIC-UAM, Nicolás Cabrera, 9, Campus de Cantoblanco, 28049 Madrid, Spain; (M.V.M.-A.); (B.B.)
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16
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Xu X, Peng Q, Zhang Y, Tian D, Zhang P, Huang Y, Ma L, Dia VP, Qiao Y, Shi B. Antibacterial potential of a novel Lactobacillus casei strain isolated from Chinese northeast sauerkraut and the antibiofilm activity of its exopolysaccharides. Food Funct 2020; 11:4697-4706. [PMID: 32406901 DOI: 10.1039/d0fo00905a] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Lactobacillus spp., as probiotics, have shown efficacy in the inhibition of pathogenic bacteria in the intestinal tract. In this study, we investigated the antibacterial activity of Lactobacillus casei NA-2, which was isolated from northeast sauerkraut in China. The results of co-culture suggested that L. casei NA-2 could inhibit the growth of Bacillus cereus, Staphylococcus aureus, Salmonella typhimurium and Escherichia coli O157:H7. Moreover, L. casei NA-2 could adhere to the four pathogenic bacteria potentially associated with its exopolysaccharide (EPS). EPS from L. casei NA-2 was then isolated and its activity determined. The results showed that EPS inhibited the biofilms of B. cereus, S. aureus, S. typhimurium and E. coli O157:H7, with the highest inhibition ratios of 95.5% ± 0.1%, 30.2% ± 3.3%, 14.3% ± 0.6%, and 16.9% ± 5.4%, respectively. Moreover, EPS was able to disperse B. cereus, S. aureus, S. typhimurium and E. coli O157:H7 by 94.1% ± 1.2%, 31.8% ± 8.6%, 40.8% ± 3.3% and 49.6% ± 3.8%, respectively. Results showed that EPS from L. casei NA-2 have potential antibacterial properties by inhibiting biofilm formation and dispersing pathogenic bacteria. In conclusion, the antibiofilm property of the EPS on the surface of L. casei NA-2 is one of the possible reasons for antibacterial activity of L. casei NA-2.
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Affiliation(s)
- Xiaoqing Xu
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China.
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Kim SA, Kim HW, Rhee MS. Cranberry extract with enhanced bactericidal activities against uropathogenic Escherichia coli within one minute of treatment. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Kim HW, Chung DH, Kim SA, Rhee MS. Synergistic cranberry juice combinations with natural-borne antimicrobials for the eradication of uropathogenic Escherichia coli biofilm within a short time. Lett Appl Microbiol 2019; 68:321-328. [PMID: 30801748 DOI: 10.1111/lam.13140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 02/16/2019] [Accepted: 02/19/2019] [Indexed: 01/24/2023]
Abstract
Urinary tract infections (UTI), one of the most common diseases in humans, are caused primarily by uropathogenic Escherichia coli (UPEC). Cranberry juice (CB) is a widely known prophylaxis for UTI, but the treatment of CB alone could not effectively eradicate preformed UPEC biofilms. The aim of this study was to develop enforced CB composites within a short time by adding a small quantity of natural borne antimicrobials. UPEC biofilms (initial: 6·0 log CFU per cm2 ), formed on silicone coupons in artificial urine medium, were exposed to CB (4-8%), caprylic acid (CAR; 0·025-0·05%) and thymol (TM; 0·025-0·05%) at 37°C for 1 min. Individual treatment of each compound did not show the significant antibacterial effect on UPEC biofilms (P > 0·05). Otherwise, the survivor counts of biofilms were synergistically reduced with CB containing any of the antimicrobials. For example combined treatment with CB (8%) + CAR (0·05%) + TM (0·05%) resulted in a 6 log reduction in UPEC populations in the biofilm (no detectable bacteria remained) with 4·6 log of synergistic bactericidal effect. The confocal laser scanning microscope images indicated that any composites including TM might result in biofilm detachment from the surface. The present method is cost-effective and more acceptable to consumers as it is based on the synergistic interaction of natural borne antimicrobials. The results of this study could be widely applicable in the functional food, medical and healthcare field. SIGNIFICANCE AND IMPACT OF THE STUDY: Anti-biofilm effect of cranberry juice (CB) has been focused mainly on inhibiting biofilm formation of uropathogenic Escherichia coli (UPEC); however, combined treatment with natural borne antimicrobials derived from coconut oil (caprylic acid) and oregano essential oil (thymol) could synergistically enhance its eradicating activity against biofilms. This study developed novel CB composites showing marked anti-biofilm effects (complete eradication of UPEC biofilms within just 1 min).
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Affiliation(s)
- H W Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - D H Chung
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - S A Kim
- Department of Food Science and Engineering, Ewha Womans University, Seoul, Republic of Korea
| | - M S Rhee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
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Wang J, Zeng Y, Wang S, Liu H, Zhang D, Zhang W, Wang Y, Ji H. Swine-Derived Probiotic Lactobacillus plantarum Inhibits Growth and Adhesion of Enterotoxigenic Escherichia coli and Mediates Host Defense. Front Microbiol 2018; 9:1364. [PMID: 29997590 PMCID: PMC6028558 DOI: 10.3389/fmicb.2018.01364] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 06/05/2018] [Indexed: 01/28/2023] Open
Abstract
Weaning stress renders piglets susceptible to pathogen infection, which leads to post-weaning diarrhea, a severe condition characterized by heavy diarrhea and mortality in piglets. Enterotoxigenic Escherichia coli (ETEC) is one of typical strains associated with post-weaning diarrhea. Thus, prevention and inhibition of ETEC infection are of great concern. Probiotics possess anti-pathogenic activity and can counteract ETEC infection; however, their underlying mechanisms and modes of action have not yet been clarified. In the present study, the direct and indirect protective effects of Lactobacillus plantarum ZLP001 against ETEC infection were investigated by different methods. We found that bacterial culture and culture supernatant of L. plantarum ZLP001 prevented ETEC growth by the Oxford cup method, and ETEC growth inhibition was observed in a co-culture assay as well. This effect was suggested to be caused mainly by antimicrobial metabolites produced by L. plantarum ZLP001. In addition, adhesion capacity of L. plantarum ZLP001 to IPEC-J2 cells were observed using microscopy and counting. L. plantarum ZLP001 also exhibited a concentration-dependent ability to inhibit ETEC adhesion to IPEC-J2 cells, which mainly occurred via exclusion and competition mode. Furthermore, quantitative real time polymerase chain reaction (qPCR) analysis showed that L. plantarum ZLP001 upregulated the expression of host defense peptides (HDPs) but did not trigger an inflammatory response. In addition, L. plantarum ZLP001 induced HDP secretion, which enhanced the potential antimicrobial activity of IPEC-J2 cell-culture supernatant after incubation with L. plantarum ZLP001. Our findings demonstrate that L. plantarum ZLP001, an intestinal Lactobacillus species associated with piglet health, possesses anti-ETEC activity. L. plantarum ZLP001 might prevent ETEC growth, inhibit ETEC adhesion to the intestinal mucosa, and activate the innate immune response to secret antimicrobial peptides. L. plantarum ZLP001 is worth investigation as a potential probiotics.
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Affiliation(s)
- Jing Wang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yanxia Zeng
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Sixin Wang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hui Liu
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Dongyan Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Wei Zhang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yamin Wang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Haifeng Ji
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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20
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Ng QX, Peters C, Venkatanarayanan N, Goh YY, Ho CYX, Yeo WS. Use of Lactobacillus spp. to prevent recurrent urinary tract infections in females. Med Hypotheses 2018; 114:49-54. [PMID: 29602464 DOI: 10.1016/j.mehy.2018.03.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 02/27/2018] [Accepted: 03/03/2018] [Indexed: 01/21/2023]
Abstract
Urinary tract infections (UTIs) are the most common bacterial infections seen in the community, especially amongst females. The widespread use of antibiotics has led to the increased occurrence of E. coli resistant isolates worldwide. A promising non-antibiotic approach is the use of probiotic lactobacilli strains. This paper hypothesizes that Lactobacillus spp. containing products are able to prevent recurrent urinary tract infections in females. Using the keywords [lactobacillus OR lactobacilli OR probiotic] and [urinary tract infection OR UTI OR cystitis], a preliminary search on the PubMed, Ovid, Google Scholar and ClinicalTrials.gov database yielded 1,647 papers published in English between 1-Jan-1960 and 1-May-2017. 9 clinical trials with a total of 726 patients were reviewed. Different lactobacilli strains (in either oral or suppository formulation) were utilized and they demonstrated varying efficacy in the prevention of recurrent UTIs. Using a random-effects model, pooled risk ratio of at least one recurrent UTI episode during the entire study duration was 0.684 (95% CI 0.438 to 0.929, p < 0.001), per-protocol analysis. However, key limitations include significant inter-study variability and the limited duration of follow-up of most studies. Our hypothesis on the chemoprophylactic effects of probiotics for UTIs is plausible and supported by current data. Lactobacillus rhamnosus GR1 and Lactobacillus reuteri RC14 were the most commonly studied lactobacilli strains. Further and more robust randomized controlled trials with standardized lactobacilli strains and formulation are required for confirmation of effects.
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Affiliation(s)
- Qin Xiang Ng
- Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore.
| | - Christina Peters
- University of Nottingham Medical School, Queen's Medical Centre, Nottingham NG7 2UH, United Kingdom
| | - Nandini Venkatanarayanan
- University of Nottingham Medical School, Queen's Medical Centre, Nottingham NG7 2UH, United Kingdom
| | - Yan Yih Goh
- Anglo Singapore International School, Sukhumvit 64, Bangchark, Prakanong, Bangkok 10260, Thailand
| | - Collin Yih Xian Ho
- National University Hospital, National University Health System, 119074, Singapore
| | - Wee-Song Yeo
- Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore; National University Hospital, National University Health System, 119074, Singapore
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Abstract
Urinay tract infection (UTI) as one of the most frequent bacterial infections in humans is of utmost relevance. Because of the rising prevalence of antimicrobial resistance, urinalysis should always include urine culture and a resistogram in order to avoid an unspecific selection and overuse of antibiotics. Prevention of recurrent UTI must first of all rule out predisposing uropathogenic conditions. Nowadays, a great variety of drugs, behavioral, and supportive treatment options can effectively minimize UTI recurrence. The growing importance of vaccines (immunotherapy), probiotics (lactobacilli), and standardized herbal preparations meets the need of reducing antibiotic use and the development of antimicrobial resistance. Around 80% of all nosocomial UTIs (nUTIs) are associated with indwelling urinary catheters. It is estimated that up to 70% of all nUTIs occurring in Germany may be avoided by using appropriate preventative measures. Therefore, profound knowledge about the basics of catheter-associated nUTIs and the correct management of urinary catheters are of utmost individual and socioeconomic importance.
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Leccese Terraf MC, Juarez Tomás MS, Rault L, Le Loir Y, Even S, Nader-Macías MEF. In vitro effect of vaginal lactobacilli on the growth and adhesion abilities of uropathogenic Escherichia coli. Arch Microbiol 2017; 199:767-774. [PMID: 28280842 DOI: 10.1007/s00203-016-1336-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/03/2016] [Accepted: 12/28/2016] [Indexed: 10/20/2022]
Abstract
Escherichia coli is one of the main causes of uncomplicated urinary tract infections and responsible of vaginal infections. Lactobacilli can inhibit this pathogen by the production of antimicrobial substances as organic acids, hydrogen peroxide and/or bacteriocins. The aim of this work was to study the effects of beneficial vaginal lactobacilli on E. coli through in vitro experiments. The inhibitory activity of three vaginal Lactobacillus strains against E. coli was assessed using the agar plate diffusion. Moreover, the effect of Lactobacillus reuteri CRL (Centro de Referencia para Lactobacilos Culture Collection) 1324 on the adhesion and internalization capabilities of E. coli was studied on HeLa cells. Two Lactobacillus strains inhibited the growth of the pathogens by production of organic acids. L. reuteri CRL 1324 reduced the adhesion and internalization of E. coli 275 into HeLa cells. The results obtained suggest that L. reuteri CRL 1324 can be considered as a probiotic candidate for further in vivo studies for the prevention or treatment of urinary tract infections caused by E. coli.
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Affiliation(s)
| | | | - Lucie Rault
- INRA, UMR 1253 STLO, Agrocampus Ouest, Rennes Cedex, France
| | - Yves Le Loir
- INRA, UMR 1253 STLO, Agrocampus Ouest, Rennes Cedex, France
| | - Sergine Even
- INRA, UMR 1253 STLO, Agrocampus Ouest, Rennes Cedex, France
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Singh SK, Seema K, Gupta M. Detection of Amp C β-lactamase and adherence factors in uropathogenic Escherichia coli isolated from aged patients. Microb Pathog 2016; 100:293-298. [DOI: 10.1016/j.micpath.2016.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/09/2016] [Accepted: 10/11/2016] [Indexed: 11/30/2022]
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24
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Probiotics for Prophylaxis and Treatment of Urinary Tract Infections in Children. IRANIAN JOURNAL OF PEDIATRICS 2016. [DOI: 10.5812/ijp.7695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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25
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Polewski M, Krueger C, Reed J, Leyer G. Ability of cranberry proanthocyanidins in combination with a probiotic formulation to inhibit in vitro invasion of gut epithelial cells by extra-intestinal pathogenic E. coli. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.05.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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