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Jamwal A, Sharma K, Chauhan R, Bansal S, Goel G. Evaluation of commercial probiotic lactic cultures against biofilm formation by Cronobacter sakazakii. Intest Res 2019; 17:192-201. [PMID: 30508474 PMCID: PMC6505092 DOI: 10.5217/ir.2018.00106] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/26/2018] [Accepted: 10/15/2018] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND/AIMS Cronobacter sakazakii, an emergent pathogen is considered as a major concern to infants and neonates fed on reconstituted powdered infant milk formula. In conjunction with many other factors, biofilm forming capacity adds to its pathogenic potential. In view of the facts that infants are at highest risk to C. sakazakii infections, and emerging antibiotic resistance among pathogens, it is imperative to evaluate probiotic cultures for their efficacy against C. sakazakii. Therefore, pure probiotic strains were isolated from commercial probiotic products and tested for their antimicrobial and anti-biofilm activities against C. sakazakii. METHODS A total of 6 probiotic strains were tested for their antibiotic susceptibility followed by antimicrobial activity using cell-free supernatant (CFS) against C. sakazakii. The inhibitory activity of CFS against biofilm formation by C. sakazakii was determined using standard crystal violet assay and microscopic observations. RESULTS All the probiotic strains were sensitive to ampicillin, tetracycline, vancomycin and carbenicillin whereas most of the strains were resistant to erythromycin and novobiocin. Four of the 6 probiotic derived CFS possessed antimicrobial activity against C. sakazakii at a level of 40 μL. A higher biofilm inhibitory activity (>80%) was observed at initial stages of biofilm formation with weaker activity during longer incubation upto 48 hours (50%-60%). CONCLUSIONS The study indicated the efficacy of isolated commercial probiotics strains as potential inhibitor of biofilm formation by C. sakazakii and could be further explored for novel bioactive molecules to limit the emerging infections of C. sakazakii.
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Affiliation(s)
- Anubhav Jamwal
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, India
| | - Kavita Sharma
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, India
| | - Rajni Chauhan
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, India
| | - Saurabh Bansal
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, India
| | - Gunjan Goel
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, India
- Department of Microbiology, School of Interdisciplinary and Applied Life Sciences, Central University of Haryana, Mahendergarh, India
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102
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CTGF-mediated ERK signaling pathway influences the inflammatory factors and intestinal flora in ulcerative colitis. Biomed Pharmacother 2019; 111:1429-1437. [DOI: 10.1016/j.biopha.2018.12.063] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/28/2018] [Accepted: 12/14/2018] [Indexed: 12/16/2022] Open
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103
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Abstract
GOALS AND BACKGROUND This study aimed to compare differences in the fecal microbiota according to the risk of advanced colorectal neoplasia (ACN) based on a risk-score model in a large Korean cohort. STUDY Stool samples were collected from 1122 health screening recipients: 404 enrolled in the average risk (AR) group, 514 in the moderate risk (MR) group, and 204 in the high risk (HR) group, in accordance with their risk of ACN. The fecal microbiota was characterized using pyrosequencing of the V3-V4 region of the 16S rRNA genes. RESULTS The overall microbial diversity was significantly reduced with an increased risk of ACN [false discovery rate (FDR), P<0.001], and the composition was significantly different between the risk groups (Bonferroni corrected, P<0.05). On taxonomic comparison, 6 of 11 phyla and 39 of 88 genera were significantly different among the risk groups (all FDR P<0.05). These included under-representation of Bacteroides, Ruminococcus, and Bifidobacterium, and over-representation of Prevotella and Fusobacterium with an increased risk of ACN. In particular, we observed that the unknown genus of Ruminococcaceae were relatively abundant (16.2%) in the AR group and significantly depleted with an increased risk of ACN (13.5% in the HR group; FDR P<0.001). CONCLUSIONS These findings support the hypothesis that the fecal microbiota is different according to the risk of ACN. An unknown genus of Ruminococcaceae, as novel potential butyrate producers, might have a possible role in colorectal tumorigenesis in the Korean population.
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Optimization of exopolysaccharide production by probiotic yeast Lipomyces starkeyi VIT-MN03 using response surface methodology and its applications. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-1440-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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105
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Sajedinejad N, Paknejad M, Houshmand B, Sharafi H, Jelodar R, Shahbani Zahiri H, Noghabi KA. Lactobacillus salivarius NK02: a Potent Probiotic for Clinical Application in Mouthwash. Probiotics Antimicrob Proteins 2019. [PMID: 28631250 DOI: 10.1007/s12602-017-9296-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A specific strain of naturally occurring oral lactobacilli was isolated and identified based on morphological, biochemical, and 16S rRNA gene sequencing. The phylogenetic affiliation of the isolate confirmed that the NK02 strain had close association with the Lactobacillus salivarius. An effective mouthwash was developed for treatment of periodontitis and suppression of the indicator bacterium Aggregatibacter actinomycetemcomitans which is an obvious pathogen of periodontal disease. The mouthwash containing L. salivarius NK02 was tested at a dose level of 108 (colony forming units (CFU) ml-1), monitoring over a period of 4 weeks. The study was a randomized double-blind placebo control trial, and the patients were treated in two groups of control and test by using scaling and root planing (SRP) + placebo and scaling and root planing (SRP) + probiotic, respectively. It appeared that the probiotic mouthwash was able to inhibit the bacterial growth on both saliva and sub-gingival crevice and exhibited antibacterial activity against A. actinomycetemcomitans. The results also showed that SRP+ probiotic treatment led to a significant decrease of gingival index (GI) and bleeding on probing (BOP) compared with that of SRP + placebo for the probiotic group. The rate of decrease in pocket depth was displayed in the group with SRP + probiotic treatment equal to 1/2 mm, and probing pocket depth (PPD) value was decreased in the probiotic bacteria treatment group that can explain the decrease in inflammation in gingiva. Our findings suggest that probiotic mouthwash is healthy for daily use as an alternative for maintaining dental and periodontal health.
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Affiliation(s)
- Neda Sajedinejad
- Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
- Division of Environmental & Industrial Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O. Box 14155-6343, Tehran, Iran
- Faculty of Dentistry, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mojgan Paknejad
- Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Behzad Houshmand
- Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hakimeh Sharafi
- Division of Environmental & Industrial Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O. Box 14155-6343, Tehran, Iran
| | - Reza Jelodar
- Faculty of Dentistry, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Hossein Shahbani Zahiri
- Division of Environmental & Industrial Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O. Box 14155-6343, Tehran, Iran
| | - Kambiz Akbari Noghabi
- Division of Environmental & Industrial Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), P.O. Box 14155-6343, Tehran, Iran.
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106
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Sarin SK, Pande A, Schnabl B. Microbiome as a therapeutic target in alcohol-related liver disease. J Hepatol 2019; 70:260-272. [PMID: 30658727 DOI: 10.1016/j.jhep.2018.10.019] [Citation(s) in RCA: 160] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 10/23/2018] [Indexed: 02/08/2023]
Abstract
Alcohol-related liver disease is associated with significant changes in gut microbial composition. The transmissibility of ethanol-induced liver disease has been demonstrated using faecal microbiota transfer in preclinical models. This technique has also led to improved survival in patients with severe alcoholic hepatitis, suggesting that changes in the composition and function of the gut microbiota are causatively linked to alcohol-related liver disease. A major mechanism by which gut microbiota influence the development of alcohol-related liver disease is through a leaky intestinal barrier. This permits translocation of viable bacteria and microbial products to the liver, where they induce and promote inflammation, as well as contribute to hepatocyte death and the fibrotic response. In addition, gut dysbiosis is associated with changes in the metabolic function of the intestinal microbiota, bile acid composition and circulation, immune dysregulation during onset and progression of alcohol-related liver disease. Findings from preclinical and human studies will be used to demonstrate how alcohol causes intestinal pathology and contributes to alcohol-related liver disease and how the latter is self-perpetuating. Additionally, we summarise the effects of untargeted treatment approaches on the gut microbiota, such as diet, probiotics, antibiotics and faecal microbial transplantation in alcohol-related liver disease. We further discuss how targeted approaches can restore intestinal homeostasis and improve alcohol-related liver disease. These approaches are likely to add to the therapeutic options for alcohol-related liver disease independently or in conjunction with steroids.
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Affiliation(s)
- Shiv K Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India.
| | - Apurva Pande
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, CA, USA; Department of Medicine, VA San Diego Healthcare System, San Diego, CA, USA.
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107
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Yfanti C, Deli CK, Georgakouli K, Fatouros I, Jamurtas AZ. Sport nutrition, redox homeostasis and toxicity in sport performance. CURRENT OPINION IN TOXICOLOGY 2019. [DOI: 10.1016/j.cotox.2019.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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108
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Probiotic Bacillus coagulans MTCC 5856 spores exhibit excellent in-vitro functional efficacy in simulated gastric survival, mucosal adhesion and immunomodulation. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.10.031] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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109
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Sireswar S, Dey G. Matrix-wise evaluation of in vivo and in vitro efficiencies of L. rhamnosus GG-fortified beverages. Food Res Int 2018; 119:908-919. [PMID: 30884731 DOI: 10.1016/j.foodres.2018.10.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/23/2018] [Accepted: 10/26/2018] [Indexed: 12/19/2022]
Abstract
The interactions between phenolic compounds and gut microbiota, have gained much attention due to their beneficial effect on humans. The study was also conceived keeping in view the growing popularity of probiotics and emerging interest in designing plant based matrices for probiotic delivery. The synergistic relationship between probiotic, Lactobacillus rhamnosus GG (LR) (ATCC 53103) and phenolic compounds of fruit matrices, sea buckthorn (SBT) and apple juice (APJ) was evaluated on TNBS induced enterocolitis in a zebrafish model (Danio rerio). Addition of LR to SBT matrix conferred higher protection against inflammation than LR in APJ matrix. This could be due to higher content of phenolic compounds in SBT. Isorhamnetin was identified as the predominant phenolic in SBT. The juice matrices were also evaluated for their flow and viscoelastic properties. The consistency index (K) and flow behaviour index (η) were derived from evaluating the shear strength. All the tested juice matrices demonstrated shear-thinning properties. Effect of the matrices on other functionalities of LR during storage period of 14 days was also evaluated. No significant changes were observed on cell surface hydrophobicity depicting protective action of the matrix components on the probiotic strain. Gastrointestinal tolerance increased on Day 7 and 14. Principal Component Analysis of the anti-microbial potential of the probiotic beverage formulations against pathogenic and food spoilage strains showed higher antagonistic ability of LR in SBT during the 14 days storage. The key findings suggest probiotic strain may behave differently in different food matrices. The sustainable functionality of the probiotic strain can be achieved even during the shelf period by optimum design of the delivery matrix.
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Affiliation(s)
- Srijita Sireswar
- School of Biotechnology, Kalinga Institute of Industrial Technology, Patia, Bhubaneswar, Odisha 751024, India
| | - Gargi Dey
- School of Biotechnology, Kalinga Institute of Industrial Technology, Patia, Bhubaneswar, Odisha 751024, India.
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110
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Asadi A, Razavi S, Talebi M, Gholami M. A review on anti-adhesion therapies of bacterial diseases. Infection 2018; 47:13-23. [PMID: 30276540 DOI: 10.1007/s15010-018-1222-5] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 09/14/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Infections caused by bacteria are a foremost cause of morbidity and mortality in the world. The common strategy of treating bacterial infections is by local or systemic administration of antimicrobial agents. Currently, the increasing antibiotic resistance is a serious and global problem. Since the most important agent for infection is bacteria attaching to host cells, hence, new techniques and attractive approaches that interfere with the ability of the bacteria to adhere to tissues of the host or detach them from the tissues at the early stages of infection are good therapeutic strategies. METHODS All available national and international databanks were searched using the search keywords. Here, we review various approaches to anti-adhesion therapy, including use of receptor and adhesion analogs, dietary constituents, sublethal concentrations of antibiotics, and adhesion-based vaccines. RESULTS Altogether, the findings suggest that interference with bacterial adhesion serves as a new means to fight infectious diseases. CONCLUSION Anti-adhesion-based therapies can be effective in prevention and treatment of bacterial infections, but further work is needed to elucidate underlying mechanisms.
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Affiliation(s)
- Arezoo Asadi
- Department of Microbiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shabnam Razavi
- Department of Microbiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Malihe Talebi
- Department of Microbiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Gholami
- Department of Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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111
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Sun MC, Zhang FC, Yin X, Cheng BJ, Zhao CH, Wang YL, Zhang ZZ, Hao HW, Zhang TH, Ye HQ. Lactobacillus reuteri F-9-35 Prevents DSS-Induced Colitis by Inhibiting Proinflammatory Gene Expression and Restoring the Gut Microbiota in Mice. J Food Sci 2018; 83:2645-2652. [PMID: 30216448 DOI: 10.1111/1750-3841.14326] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/25/2018] [Accepted: 07/21/2018] [Indexed: 12/14/2022]
Abstract
Probiotics are considered to be a potential treatment for ulcerative colitis (UC). The aim of this study was to compare the preventive effect of a space flight-induced mutant L. reuteri F-9-35 and its wild type on UC in vivo. Female mice were randomly assigned to five groups: one normal and four colitic. Mice from colitis groups were daily gavaged with 0.2 mL 12% (w/v) skim milk containing the mutant or wild type (1 × 1011 CFU/mL), skim milk alone or distilled water for the whole experiment period, starting 7 days before colitis induction. UC was induced by administrating mice with 3.5% (w/v) dextran sulfate sodium (DSS) in drinking water for 7 days, after which DSS was removed and maintained for 3 days as a recovery phase. The results showed that the mice fed with L. reuteri F-9-35 had less inflammatory phenotype according to macroscopic and histological analysis, reduced myeloperoxidase activity, and lower expression of proinflammatory genes (Tumor necrosis factor-α, cyclooxygenase-2 and interleukin-6) in colonic tissue compared with control. Furthermore, L. reuteri F-9-35 protected the mice from gut microbiota dysbiosis from DDS induced colitis. Neither wild type nor the milk alone had such beneficial effects. From above we conclude that L. reuteri F-9-35 has great potential in the prevention of UC as a dietary supplement. PRACTICAL APPLICATION Ulcerative colitis (UC) is the most common inflammatory bowel diseases and there is still a lack of safe and effective treatments. Consumption of L. reuteri F-9-35 may effective in preventing human UC.
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Affiliation(s)
- Mao-Cheng Sun
- College of Food Science and Engineering, Jilin Univ., Changchun, China.,School of Public Health, Jilin Medical Univ., Jilin City, China
| | - Fu-Cheng Zhang
- College of Food Science and Engineering, Jilin Univ., Changchun, China
| | - Xue Yin
- College of Food Science and Engineering, Jilin Univ., Changchun, China
| | - Bi-Jun Cheng
- College of Food Science and Engineering, Jilin Univ., Changchun, China
| | - Chang-Hui Zhao
- College of Food Science and Engineering, Jilin Univ., Changchun, China
| | - Yan-Ling Wang
- School of Pharmaceutical Sciences, Jilin Univ., Changchun, China
| | - Zheng-Zhe Zhang
- College of Food Science and Engineering, Jilin Univ., Changchun, China
| | - Hong-Wei Hao
- Fullarton Bioengineering Technology Co., Ltd, Beijing, China
| | - Tie-Hua Zhang
- College of Food Science and Engineering, Jilin Univ., Changchun, China
| | - Hai-Qing Ye
- College of Food Science and Engineering, Jilin Univ., Changchun, China
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112
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Qin C, Xie Y, Wang Y, Li S, Ran C, He S, Zhou Z. Impact of Lactobacillus casei BL23 on the Host Transcriptome, Growth and Disease Resistance in Larval Zebrafish. Front Physiol 2018; 9:1245. [PMID: 30233415 PMCID: PMC6131626 DOI: 10.3389/fphys.2018.01245] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 08/17/2018] [Indexed: 11/25/2022] Open
Abstract
In this study, zebrafish were treated with Lactobacillus strains as probiotics from hatching to puberty, and the effect of treatment with L. casei BL23 on the development and immunity response of the host was investigated. Genes that were differentially expressed (DEGs) in the overall body and intestine were detected at 14 days post fertilization (dpf) and 35 dpf, respectively, using whole transcriptome sequencing (mRNAseq). We showed that zebrafish raised by continuous immersion with L. casei BL23 showed a higher final body weight at 14 dpf (P < 0.05), and 35 dpf (P < 0.01). DEGs between L. casei BL23 treatment and control group at 14 dpf were involved in myogenesis, cell adhesion, transcription regulation and DNA-binding and activator. At 35 dpf, 369 genes were DEGs in the intestine after treatment with L. casei BL23, which were involved in such categories as signaling, secretion, motor proteins, oxidoreductase and iron, tight junctions, lipid metabolism, growth regulation, proteases, and humoral and cellular effectors. KEGG analysis showed DEGs to be involved in such pathways as those associated with tight junctions and the PPAR signal pathway. RT-qPCR analysis showed that expression of insulin-like growth factors-I (igf1), peroxisome proliferator activated receptors-α (ppar-α) and -β (ppar-β), Vitamin D receptor-α (vdr-α), and retinoic acid receptor-γ (rar-γ) was up-regulated in fish treated with L. casei BL23 at 35 dpf. After 35 days of treatment, the mortality rate in L. casei BL23 treated group was lower than the control after challenge with A. hydrophila (P < 0.05), and the pro-inflammatory cytokine il-1β, anti-inflammatory cytokine il-10 and complement component 3a (c3a) showed more expression in L. casei BL23 group at 8h after challenge, 24 h after challenge, or both.. Together, these data suggest that specific Lactobacillus probiotic strains can accelerate the development profile and enhance immunity in zebrafish, which supports the rationale of early administration of probiotics in aquaculture.
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Affiliation(s)
- Chubin Qin
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yadong Xie
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yibing Wang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shuning Li
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chao Ran
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Suxu He
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhigang Zhou
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
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113
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Jessie Lau LY, Chye FY. Antagonistic effects of Lactobacillus plantarum 0612 on the adhesion of selected foodborne enteropathogens in various colonic environments. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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114
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Lin S, Bi X, Zhu S, Yin H, Li Z, Chen C. Dual-type hyperspectral microscopic imaging for the identification and analysis of intestinal fungi. BIOMEDICAL OPTICS EXPRESS 2018; 9:4496-4508. [PMID: 30615713 PMCID: PMC6157763 DOI: 10.1364/boe.9.004496] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/20/2018] [Accepted: 08/20/2018] [Indexed: 05/21/2023]
Abstract
A method based on a dual-type (transmission and fluorescence) hyperspectral microscopic image system was developed to identify species of intestinal fungi. Living fungi are difficult to identify via transmission spectra or fluorescence spectra alone. We propose an identification method based on both fluorescence and transmission spectra that employs a series of image processing methods. Three species of intestinal fungi were used to evaluate the method. The results demonstrate that the specificity of the model trained with dual-type spectra was 98.36%, whereas the specificities achieved by training with fluorescence spectra and transmission spectra alone were 94.04% and 92.88%, respectively.
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Affiliation(s)
- Sifan Lin
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, China
| | - Xiaolin Bi
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, China
| | - Siqi Zhu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, China
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology, Guangzhou 510632, China
| | - Hao Yin
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, China
| | - Zhen Li
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, China
| | - Chenqiang Chen
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou 510632, China
- Guangdong Provincial Engineering Research Center of Crystal and Laser Technology, Guangzhou 510632, China
- Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, China
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115
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Sunkara T, Rawla P, Ofosu A, Gaduputi V. Fecal microbiota transplant - a new frontier in inflammatory bowel disease. J Inflamm Res 2018; 11:321-328. [PMID: 30214266 PMCID: PMC6124474 DOI: 10.2147/jir.s176190] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic multifactorial disease that affects the gastrointestinal tract and results from an aberrant immune response toward luminal antigens in genetically susceptible people. Most of the current therapies for IBD focus on the management of the inflammation by using corticosteroids, immune modulators, and more recently, monoclonal antibodies (biological therapy). Although these therapies provide benefit in most cases, there are still a significant number of patients who do not respond or become refractory over time, suggesting the need for alternative therapeutic options. In the last decade, it has been recognized that "dysbiosis," an imbalanced gut microbiota, is a key element in IBD suggesting microbiome-based therapies as an attractive approach. Recently, fecal microbiota transplant (FMT) has been successfully used for the treatment of Clostridium difficile infection, and it is now under investigation for the treatment of IBD. Clinical trials data are still poor but strongly support a future introduction of FMT in therapy to manage IBD microbiome. More studies are needed to assess the optimal route of administration and the frequency of FMT, the best matched donor for each patient as well as the risks associated with FMT in IBD.
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Affiliation(s)
- Tagore Sunkara
- Division of Gastroenterology and Hepatology, The Brooklyn Hospital Center, Mount Sinai Health System, New York, NY, USA
| | - Prashanth Rawla
- Department of Internal Medicine, Sovah Health, Martinsville, VA, USA,
| | - Andrew Ofosu
- Division of Gastroenterology and Hepatology, The Brooklyn Hospital Center, Mount Sinai Health System, New York, NY, USA
| | - Vinaya Gaduputi
- Division of Gastroenterology, SBH Health System, Bronx, NY, USA
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116
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Devi SM, Kurrey NK, Halami PM. In vitro anti-inflammatory activity among probiotic Lactobacillus species isolated from fermented foods. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.05.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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117
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Réquilé M, Gonzàlez Alvarez DO, Delanaud S, Rhazi L, Bach V, Depeint F, Khorsi-Cauet H. Use of a combination of in vitro models to investigate the impact of chlorpyrifos and inulin on the intestinal microbiota and the permeability of the intestinal mucosa. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22529-22540. [PMID: 29808406 DOI: 10.1007/s11356-018-2332-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 05/15/2018] [Indexed: 05/24/2023]
Abstract
Dietary exposure to the organophosphorothionate pesticide chlorpyrifos (CPF) has been linked to dysbiosis of the gut microbiota. We therefore sought to investigate whether (i) CPF's impact extends to the intestinal barrier and (ii) the prebiotic inulin could prevent such an effect. In vitro models mimicking the intestinal environment (the SHIME®) and the intestinal mucosa (Caco-2/TC7 cells) were exposed to CPF. After the SHIME® had been exposed to CPF and/or inulin, we assessed the system's bacterial and metabolic profiles. Extracts from the SHIME®'s colon reactors were then transferred to Caco-2/TC7 cultures, and epithelial barrier integrity and function were assessed. We found that inulin co-treatment partially reversed CPF-induced dysbiosis and increased short-chain fatty acid production in the SHIME®. Furthermore, co-treatment impacted tight junction gene expression and inhibited pro-inflammatory signaling in the Caco-2/TC7 intestinal cell line. Whereas, an isolated in vitro assessment of CPF and inulin effects provides useful information on the mechanism of dysbiosis, combining two in vitro models increases the in vivo relevance.
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Affiliation(s)
- Marina Réquilé
- Equipe PERITOX UMR-I01 INERIS, Centre Universitaire de Recherche en Santé, Université Picardie Jules Verne, Chemin du Thil, F-80025, Amiens, France
- UP 2018.C103 Transformations & Agro-Ressources, Institut Polytechnique UniLaSalle, Beauvais, France
| | - Dubàn O Gonzàlez Alvarez
- Equipe PERITOX UMR-I01 INERIS, Centre Universitaire de Recherche en Santé, Université Picardie Jules Verne, Chemin du Thil, F-80025, Amiens, France
- UP 2018.C103 Transformations & Agro-Ressources, Institut Polytechnique UniLaSalle, Beauvais, France
| | - Stéphane Delanaud
- Equipe PERITOX UMR-I01 INERIS, Centre Universitaire de Recherche en Santé, Université Picardie Jules Verne, Chemin du Thil, F-80025, Amiens, France
| | - Larbi Rhazi
- UP 2018.C103 Transformations & Agro-Ressources, Institut Polytechnique UniLaSalle, Beauvais, France
| | - Véronique Bach
- Equipe PERITOX UMR-I01 INERIS, Centre Universitaire de Recherche en Santé, Université Picardie Jules Verne, Chemin du Thil, F-80025, Amiens, France
| | - Flore Depeint
- UP 2018.C103 Transformations & Agro-Ressources, Institut Polytechnique UniLaSalle, Beauvais, France
| | - Hafida Khorsi-Cauet
- Equipe PERITOX UMR-I01 INERIS, Centre Universitaire de Recherche en Santé, Université Picardie Jules Verne, Chemin du Thil, F-80025, Amiens, France.
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118
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Abstract
Infant colic is a commonly reported phenomenon of excessive crying in infancy with an enigmatic and distressing character. Despite its frequent occurrence, little agreement has been reached on the definition, pathogenesis or the optimal management strategy for infant colic. This Review aims to delineate the definitional entanglement with the Rome IV criteria, which were published in 2016, as the leading, most recent diagnostic criteria. Moreover, neurogenic, gastrointestinal, microbial and psychosocial factors that might contribute to the pathophysiology of infant colic are explored. This Review underlines that a comprehensive medical history and physical examination in the absence of alarm symptoms serve as guidance for the clinician to a positive diagnosis. It also highlights that an important aspect of the management of infant colic is parental education and reassurance. Management strategies, including behavioural, dietary, pharmacological and alternative interventions, are also discussed. Owing to a lack of large, high-quality randomized controlled trials, none of these therapies are strongly recommended. Finally, the behavioural and somatic sequelae of infant colic into childhood are summarized.
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119
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Probiotic Cell-Free Supernatants Exhibited Anti-Inflammatory and Antioxidant Activity on Human Gut Epithelial Cells and Macrophages Stimulated with LPS. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:1756308. [PMID: 30069221 PMCID: PMC6057331 DOI: 10.1155/2018/1756308] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/29/2018] [Accepted: 06/11/2018] [Indexed: 02/06/2023]
Abstract
The incidence of inflammatory bowel disease is increasing all over the world, especially in industrialized countries. The aim of the present work was to verify the anti-inflammatory activity of metabolites. In particular, cell-free supernatants of Lactobacillus acidophilus, Lactobacillus casei, Lactococcus lactis, Lactobacillus reuteri, and Saccharomyces boulardii have been investigated. Metabolites produced by these probiotics were able to downregulate the expression of PGE-2 and IL-8 in human colon epithelial HT-29 cells. Moreover, probiotic supernatants can differently modulate IL-1β, IL-6, TNF-α, and IL-10 production by human macrophages, suggesting a peculiar anti-inflammatory activity. Furthermore, supernatants showed a significant dose-dependent radical scavenging activity. This study suggests one of the mechanisms by which probiotics exert their anti-inflammatory activity affecting directly the intestinal epithelial cells and the underlying macrophages. This study provides a further evidence to support the possible use of probiotic metabolites in preventing and downregulating intestinal inflammation as adjuvant in anti-inflammatory therapy.
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120
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Lépine AFP, de Wit N, Oosterink E, Wichers H, Mes J, de Vos P. Lactobacillus acidophilus Attenuates Salmonella-Induced Stress of Epithelial Cells by Modulating Tight-Junction Genes and Cytokine Responses. Front Microbiol 2018; 9:1439. [PMID: 30013538 PMCID: PMC6036613 DOI: 10.3389/fmicb.2018.01439] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/11/2018] [Indexed: 12/24/2022] Open
Abstract
Scope: Salmonellosis is a prevalent food-borne illness that causes diarrhea in over 130 million humans yearly and can lead to death. There is an urgent need to find alternatives to antibiotics as many salmonellae are now multidrug resistant. As such, specific beneficial bacteria and dietary fibers can be an alternative as they may prevent Salmonella Typhimurium (STM) infection and spreading by strengthening intestinal barrier function. Methods and Results: We tested whether immune active long-chain inulin-type fructans and/or L. acidophilus W37, L. brevis W63, and L. casei W56 can strengthen barrier integrity of intestinal Caco-2 cells in the presence and absence of a STM. Effects of the ingredients on intestinal barrier function were first evaluated by quantifying trans-epithelial electric resistance (TEER) and regulation of gene expression by microarray. Only L. acidophilus had effects on TEER and modulated a group of 26 genes related to tight-junctions. Inulin-type fructans, L. brevis W63 and L. casei W56 regulated other genes, unrelated to tight-junctions. L. acidophilus also had unique effects on a group of six genes regulating epithelial phenotype toward follicle-associated epithelium. L. acidophilus W37 was therefore selected for a challenge with STM and prevented STM-induced barrier disruption and decreased secretion of IL-8. Conclusion:L. acidophilus W37 increases TEER and can protect against STM induced disruption of gut epithelial cells integrity in vitro. Our results suggest that selection of specific bacterial strains for enforcing barrier function may be a promising strategy to reduce or prevent STM infections.
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Affiliation(s)
- Alexia F. P. Lépine
- Section Immuno-endocrinology, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Food Quality and Health Effects, Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Nicole de Wit
- Food Quality and Health Effects, Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Els Oosterink
- Food Quality and Health Effects, Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Harry Wichers
- Food Quality and Health Effects, Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Jurriaan Mes
- Food Quality and Health Effects, Food and Biobased Research, Wageningen University & Research, Wageningen, Netherlands
| | - Paul de Vos
- Section Immuno-endocrinology, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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121
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Abdelhamid AG, Esaam A, Hazaa MM. Cell free preparations of probiotics exerted antibacterial and antibiofilm activities against multidrug resistant E. coli. Saudi Pharm J 2018; 26:603-607. [PMID: 29991904 PMCID: PMC6035330 DOI: 10.1016/j.jsps.2018.03.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 03/10/2018] [Indexed: 12/20/2022] Open
Abstract
The sharp increase in antibiotic resistance imposes a global threat to human health and the discovery of effective antimicrobial alternatives is needed. The use of probiotics to combat bacterial pathogens has gained a rising interest. Pathogenic Escherichia coli is causative of multiple clinical syndromes such as diarrheal diseases, meningitis and urinary tract infections. In this work, we evaluated the efficacy of probiotics to control multidrug-resistant E. coli and reduce their ability to form biofilms. Six E. coli resistant to at least five antibiotics (Ceftazidime, Ampicillin, Clarithromycin, Amoxicillin + Clavulanic Acid and Ceftriaxone) were isolated in this work. Preparations of cell-free spent media (CFSM) of six probiotics belonging to the genus Bifidobacterium and Lactobacillus which were grown in Man-Rogosa-Sharpe (MRS) broth exhibited strong antibacterial activity (inhibition zones of 11.77-23.10 mm) against all E. coli isolates. Two E. coli isolates, namely E. coli WW1 and IC2, which were most resistant to all antibiotics were subjected to antibiofilm experiments. Interestingly, the CFSM of MRS fermented by all probiotics resulted in inhibition of biofilm formation while B. longum caused highest inhibition (57.94%) in case of E. coli IC2 biofilms and L. plantarum was responsible for 64.57% reduction of E. coli WW1 biofilms. On the other hand, CFSM of skim milk fermented by L. helveticus and L. rhamnosus exhibited a slight inhibitory activity against IC2 isolate (inhibition percentage of 31.52 and 17. 68, respectively) while WW1 isolate biofilms was reduced by CFSM of milk fermented by B. longum and L. helveticus (70.81 and 69.49 reduction percentage, respectively). These results support the effective use of probiotics as antimicrobial alternatives and to eradicate biofilms formed by multidrug-resistant E. coli.
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122
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Efficacy and Safety of Probiotics and Synbiotics in Liver Transplantation. Pharmacotherapy 2018; 38:758-768. [DOI: 10.1002/phar.2130] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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123
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Athari Nik Azm S, Djazayeri A, Safa M, Azami K, Ahmadvand B, Sabbaghziarani F, Sharifzadeh M, Vafa M. Lactobacilli and bifidobacteria ameliorate memory and learning deficits and oxidative stress in β-amyloid (1–42) injected rats. Appl Physiol Nutr Metab 2018; 43:718-726. [DOI: 10.1139/apnm-2017-0648] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The gastrointestinal microbiota affects brain function, including memory and learning. In this study we investigated the effects of probiotics on memory and oxidative stress biomarkers in an experimental model of Alzheimer’s disease. Sixty rats were randomly divided into 5 groups: control; control-probiotics, which received probiotics for 8 weeks; sham operation, which received an intrahippocampal injection of phosphate-buffered saline; Alzheimer, which received an intrahippocampal injection of β-amyloid (Aβ1–42); and Alzheimer-probiotics, which in addition to being injected with Aβ1–42, received 2 g (1 × 1010 CFU/g) of probiotics (Lactobacillus acidophilus, L. fermentum, Bifidobacterium lactis, and B. longum) for 8 weeks. Memory and learning were measured using the Morris water maze, and oxidative stress biomarkers in the hippocampus were measured using ELISA kits. Morris water maze results indicated that compared with the Alzheimer group, the Alzheimer-probiotics group had significantly improved spatial memory, including shorter escape latency and travelled distance and greater time spent in the target quadrant. There was also improvement in oxidative stress biomarkers such as increased malondialdehyde levels and superoxide dismutase activity following the β-amyloid injection. Overall, it seems that probiotics play a role in improving memory deficit and inhibiting the pathological mechanisms of Alzheimer’s disease by modifying microbiota.
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Affiliation(s)
- Somayeh Athari Nik Azm
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Abolghassem Djazayeri
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Safa
- Cellular and Molecular Research Centre and Hematology Department, School of Allied Medical Science, Iran University of Medical Sciences, Tehran, Iran
| | - Kian Azami
- Pharmaceutical Science Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Behzad Ahmadvand
- Faculty of Veterinary Medicine, Islamic Azad University, Garmsar Branch, Garmsar, Iran
| | - Fatemeh Sabbaghziarani
- Department of Anatomy, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Mohammad Sharifzadeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Vafa
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
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124
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Funkhouser-Jones LJ, van Opstal EJ, Sharma A, Bordenstein SR. The Maternal Effect Gene Wds Controls Wolbachia Titer in Nasonia. Curr Biol 2018; 28:1692-1702.e6. [PMID: 29779872 PMCID: PMC5988964 DOI: 10.1016/j.cub.2018.04.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/23/2018] [Accepted: 04/03/2018] [Indexed: 12/14/2022]
Abstract
Maternal transmission of intracellular microbes is pivotal in establishing long-term, intimate symbioses. For germline microbes that exert negative reproductive effects on their hosts, selection can theoretically favor the spread of host genes that counteract the microbe's harmful effects. Here, we leverage a major difference in bacterial (Wolbachia pipientis) titers between closely related wasp species with forward genetic, transcriptomic, and cytological approaches to map two quantitative trait loci that suppress bacterial titers via a maternal effect. Fine mapping and knockdown experiments identify the gene Wolbachia density suppressor (Wds), which dominantly suppresses bacterial transmission from mother to embryo. Wds evolved by lineage-specific non-synonymous changes driven by positive selection. Collectively, our findings demonstrate that a genetically simple change arose by positive Darwinian selection in less than a million years to regulate maternally transmitted bacteria via a dominant, maternal effect gene.
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Affiliation(s)
- Lisa J Funkhouser-Jones
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; Department of Molecular Microbiology, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA.
| | - Edward J van Opstal
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA.
| | - Ananya Sharma
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
| | - Seth R Bordenstein
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University, Nashville, TN 37235, USA; Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University, Nashville, TN 37235, USA; Vanderbilt Genetics Institute, Nashville, TN 37235, USA.
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125
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Tsai CC, Hung YH, Chou LC. Evaluation of Lactic Acid Bacteria on the Inhibition of Vibrio parahaemolyticus Infection and Its Application to Food Systems. Molecules 2018; 23:molecules23051238. [PMID: 29789490 PMCID: PMC6100599 DOI: 10.3390/molecules23051238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/16/2018] [Accepted: 05/22/2018] [Indexed: 12/21/2022] Open
Abstract
This study tested the effect of lactic acid bacteria (LAB) inhibition on Vibrio parahaemolyticus BCRC (Bioresource Collection and Research Center) 10806 and BCRC 12865 in a food model. MTT [3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assays indicated that Caco-2 cells were not damaged after a two-hour treatment with lactic acid bacteria (LAB) and V. parahaemolyticus. The LAB cell culture and supernatant effectively inhibited the growth of V. parahaemolyticus in a food model. ELISA (Enzyme-linked immunosorbent assay) results indicated the significant inhibition of TNF-α; IL-1β; and IL-6; but Lactobacillus plantarum PM 222 and L. plantarum LP 735 did not significantly affect IL-8 levels. Real-time polymerase chain reaction (PCR) results indicated that LAB could inhibit the mRNA expression of proinflammatory cytokines IL-8; IL-6; and TNF-α; which were induced by V. parahaemolyticus. After rat-received LAB; the expression levels of TNF-α; IL-6; and IL-8 in the serum decreased significantly. In intestinal histology; the rat that received L. plantarum PM 222 and L. plantarum LP 010 was able to alleviate the intestinal villi damage caused by V. parahaemolyticus; which also helped reduce cell apoptosis. In conclusion; our results indicate that LAB can inhibit inflammatory responses caused by V. parahaemolyticus and can effectively inhibit the growth of V. parahaemolyticus in food products.
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Affiliation(s)
- Cheng-Chih Tsai
- Department of Food Science and Technology, HungKuang University, No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan.
| | - Yung-Hsien Hung
- Department of Food Science and Technology, HungKuang University, No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan.
| | - Lan-Chun Chou
- Department of Food Science and Technology, HungKuang University, No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan.
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126
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Healey GR, Murphy R, Brough L, Butts CA, Coad J. Interindividual variability in gut microbiota and host response to dietary interventions. Nutr Rev 2018; 75:1059-1080. [PMID: 29190368 DOI: 10.1093/nutrit/nux062] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dysbiosis is linked to human disease; therefore, gut microbiota modulation strategies provide an attractive means of correcting microbial imbalance to enhance human health. Because diet has a major influence on the composition, diversity, and metabolic capacity of the gut microbiota, numerous dietary intervention studies have been conducted to manipulate the gut microbiota to improve host outcomes and reduce disease risk. Emerging evidence suggests that interindividual variability in gut microbiota and host responsiveness exists, making it difficult to predict gut microbiota and host response to a given dietary intervention. This may, in turn, have implications on the consistency of results among studies and the perceived success or true efficacy of a dietary intervention in eliciting beneficial changes to the gut microbiota and human health.
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Affiliation(s)
- Genelle R Healey
- Massey Institute of Food Science and Technology, School of Food and Nutrition, Massey University, Palmerston North, New Zealand
- Food, Nutrition & Health Group, New Zealand Institute for Plant & Food Research Limited, Palmerston North, New Zealand
| | - Rinki Murphy
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Louise Brough
- Massey Institute of Food Science and Technology, School of Food and Nutrition, Massey University, Palmerston North, New Zealand
| | - Christine A Butts
- Food, Nutrition & Health Group, New Zealand Institute for Plant & Food Research Limited, Palmerston North, New Zealand
| | - Jane Coad
- Massey Institute of Food Science and Technology, School of Food and Nutrition, Massey University, Palmerston North, New Zealand
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127
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Tuo Y, Song X, Song Y, Liu W, Tang Y, Gao Y, Jiang S, Qian F, Mu G. Screening probiotics from Lactobacillus strains according to their abilities to inhibit pathogen adhesion and induction of pro-inflammatory cytokine IL-8. J Dairy Sci 2018; 101:4822-4829. [PMID: 29550135 DOI: 10.3168/jds.2017-13654] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 09/04/2017] [Indexed: 12/13/2022]
Abstract
Probiotics can be screened according to their abilities to inhibit pathogen adhesion and inhibit the production of pro-inflammatory cytokines. Eleven Lactobacillus strains isolated from traditional fermented dairy foods in Xinjiang, China, were studied for their potential to inhibit adhesion of Escherichia coli to intestinal epithelial cells and to inhibit E. coli-induced production of interleukin (IL)-8 by intestinal epithelial cells. The results showed that the 11 strains could inhibit adhesion of E. coli to Caco-2 cell monolayers and inhibit the induction of IL-8 production by E. coli in HT-29 cells. The inhibiting activities of the Lactobacillus strains against E. coli adhesion and IL-8 induction were strain-specific and not positively correlated, whereas the excluding activity of the strains against E. coli adhesion and their coaggregation with E. coli were positively correlated. The effector molecules of the strains with probiotic potential should be identified to explain the mechanism behind these observations.
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Affiliation(s)
- Yanfeng Tuo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Xing Song
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Yinglong Song
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Wenwen Liu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Yu Tang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Yuan Gao
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Shujuan Jiang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Fang Qian
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, P. R. China; Synergetic Innovation Center of Food Safety and Nutrition, Northeast Agricultural University, Harbin, 150030, P. R. China.
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128
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Suriano F, Neyrinck AM, Verspreet J, Olivares M, Leclercq S, Van de Wiele T, Courtin CM, Cani PD, Bindels LB, Delzenne NM. Particle size determines the anti-inflammatory effect of wheat bran in a model of fructose over-consumption: Implication of the gut microbiota. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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129
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Zhang Y, Shi X, Hao S, Lu Q, Zhang L, Han X, Lu W. Inhibition of Shigella sonnei-induced epithelial barrier disruption by surface-layer associated proteins of lactobacilli from Chinese fermented food. J Dairy Sci 2018; 101:1834-1842. [PMID: 29331460 DOI: 10.3168/jds.2017-13417] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 11/22/2017] [Indexed: 12/16/2022]
Abstract
Surface-layer associated proteins (SLAP) of Lactobacillus paracasei ssp. paracasei M5-L and Lactobacillus casei Q8-L were examined to identify the functional basis for their protection within intestinal epithelial cells. The results showed that SLAP of M5-L and Q8-L remained active in a trypsin solution and retained a 45-kDa protein band, similar to that observed in controls. In contrast, under conditions of simulated gastric juice, the SLAP were partially degraded. Inhibitory effects of SLAP on adherence of Shigella sonnei to HT-29 cells were assessed with use of exclusion, competition, and replacement assays. In response to M5-L at 50 μg/mL SLAP, an inhibition ratio of 33% was obtained, while for Q8-L at 400 μg/mL SLAP, the inhibition ratio was 48%. Hoechst 33258 test results showed that cells infected with S. sonnei and co-incubated with SLAP of M5-L and Q8-L were only partially apoptotic, with apoptosis rates of 37.67 and 43.67%, respectively. These levels of apoptosis were substantially lower than that observed with cells infected with S. sonnei alone. In addition, the SLAP of Q8-L and M5-L reduced downstream caspase-1 activity and further modified apoptotic cell damage. Finally, SLAP of M5-L and Q8-L were also able to prevent S. sonnei-induced membrane damage by inhibiting delocalization of zonula occludens (ZO)-1 and reducing the amount of occludin produced by S. sonnei.
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Affiliation(s)
- Yingchun Zhang
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Xiaolu Shi
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Siqi Hao
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Qianhui Lu
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Lanwei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Xue Han
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Weihong Lu
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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130
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Vemuri R, Shinde T, Shastri MD, Perera AP, Tristram S, Martoni CJ, Gundamaraju R, Ahuja KDK, Ball M, Eri R. A human origin strain Lactobacillus acidophilus DDS-1 exhibits superior in vitro probiotic efficacy in comparison to plant or dairy origin probiotics. Int J Med Sci 2018; 15:840-848. [PMID: 30008595 PMCID: PMC6036100 DOI: 10.7150/ijms.25004] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 04/13/2018] [Indexed: 12/21/2022] Open
Abstract
Background: The health benefits of probiotics are well established and known to be strain-specific. However, the role of probiotics obtained from different origins and their efficacy largely remains unexplored. The aim of this study is to investigate the in vitro efficacy of probiotics from different origins. Methods: Probiotic strains utilized in this study include Lactobacillus acidophilus DDS-1 (human origin), Bifidobacterium animalis ssp. lactis UABla-12 (human origin), L. plantarum UALp-05 (plant origin) and Streptococcus thermophilus UASt-09 (dairy origin). Screening assays such as in vitro digestion simulation, adhesion, cell viability and cytokine release were used to evaluate the probiotic potential. Results: All strains showed good resistance in the digestion simulation process, especially DDS-1 and UALp-05, which survived up to a range of 107 to 108 CFU/mL from an initial concentration of 109 CFU/mL. Two human colonic mucus-secreting cells, HT-29 and LS174T, were used to assess the adhesion capacity, cytotoxicity/viability, and cytokine quantification. All strains exhibited good adhesion capacity. No significant cellular cytotoxicity or loss in cell viability was observed. DDS-1 and UALp-05 significantly upregulated anti-inflammatory IL-10 and downregulated pro-inflammatory TNF-α cytokine production. All the strains were able to downregulate IL-8 cytokine levels. Conclusion: Of the 4 strains tested, DDS-1 demonstrated superior survival rates, good adhesion capacity and strong immunomodulatory effect under different experimental conditions.
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Affiliation(s)
- Ravichandra Vemuri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250 Australia
| | - Tanvi Shinde
- School of Land and Food, University of Tasmania, Launceston, Tasmania 7250 Australia
| | - Madhur D Shastri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250 Australia
| | - Agampodi Promoda Perera
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250 Australia
| | - Stephen Tristram
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250 Australia
| | | | - Rohit Gundamaraju
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250 Australia
| | - Kiran D K Ahuja
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250 Australia
| | - Madeleine Ball
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria, 3082 Australia
| | - Rajaraman Eri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7250 Australia
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131
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Pajarillo EAB, Kim SH, Valeriano VD, Lee JY, Kang DK. Proteomic View of the Crosstalk between Lactobacillus mucosae and Intestinal Epithelial Cells in Co-culture Revealed by Q Exactive-Based Quantitative Proteomics. Front Microbiol 2017; 8:2459. [PMID: 29312173 PMCID: PMC5732961 DOI: 10.3389/fmicb.2017.02459] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/27/2017] [Indexed: 01/28/2023] Open
Abstract
Lactobacilli are bacteria that are beneficial to host health, but information on communication between Lactobacilli and host cells in the intestine is lacking. In this study, we examined the proteomes of the Lactobacillus mucosae strain LM1, as a model of beneficial bacteria, and the intestinal porcine epithelial cell line (IPEC-J2) after co-culture. Label-free proteomics demonstrated the high-throughput capability of the technique, and robust characterization of the functional profiles and changes in the bacteria and intestinal cells was achieved in pure and mixed cultures. After co-culture, we identified totals of 376 and 653 differentially expressed proteins in the LM1 and IPEC-J2 proteomes, respectively. The major proteomic changes in the LM1 strain occurred in the functional categories of transcription, general function, and translation, whereas those in IPEC-J2 cells involved metabolic and cellular processes, and cellular component organization/biogenesis. Among them, elongation factor Tu, glyceraldehyde 3-phosphate dehydrogenase, and phosphocarrier protein HPr, which are known to be involved in bacterial adhesion, were upregulated in LM1. In contrast, proteins involved in tight junction assembly, actin organization, and genetic information processing (i.e., histones and signaling pathways) were significantly upregulated in IPEC-J2 cells. Furthermore, we identified functional pathways that are possibly involved in host–microbe crosstalk and response. These findings will provide novel insights into host–bacteria communication and the molecular mechanism of probiotic establishment in the intestine.
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Affiliation(s)
| | - Sang Hoon Kim
- Department of Animal Resources Science, Dankook University, Cheonan, South Korea
| | | | - Ji Yoon Lee
- National Instrumentation Center for Environmental Management, Seoul National University, Seoul, South Korea
| | - Dae-Kyung Kang
- Department of Animal Resources Science, Dankook University, Cheonan, South Korea
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132
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Hasannejad Bibalan M, Eshaghi M, Rohani M, Esghaei M, Darban-Sarokhalil D, Pourshafie MR, Talebi M. Isolates of Lactobacillus plantarum and L. reuteri display greater antiproliferative and antipathogenic activity than other Lactobacillus isolates. J Med Microbiol 2017; 66:1416-1420. [DOI: 10.1099/jmm.0.000591] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
| | - Morteza Eshaghi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Rohani
- Department of Microbiology, Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Esghaei
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Davood Darban-Sarokhalil
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Malihe Talebi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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133
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Liu Q, Ni X, Wang Q, Peng Z, Niu L, Wang H, Zhou Y, Sun H, Pan K, Jing B, Zeng D. Lactobacillus plantarum BSGP201683 Isolated from Giant Panda Feces Attenuated Inflammation and Improved Gut Microflora in Mice Challenged with Enterotoxigenic Escherichia coli. Front Microbiol 2017; 8:1885. [PMID: 29018435 PMCID: PMC5623042 DOI: 10.3389/fmicb.2017.01885] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/14/2017] [Indexed: 12/28/2022] Open
Abstract
In this work, we searched for an effective probiotic that can help control intestinal infection, particularly enterotoxigenic Escherichia coli K88 (ETEC) invasion, in giant panda (Ailuropoda melanoleuca). As a potential probiotic strain, Lactobacillus plantarum BSGP201683 (L. plantarum G83) was isolated from the feces of giant panda and proven beneficial in vitro. This study was aimed to evaluate the protective effect of L. plantarum G83 in mice challenged with ETEC. The mice were orally administered with 0.2 mL of PBS containing L. plantarum G83 at 0 colony-forming units (cfu) mL−1 (control; negative control, ETEC group), 5.0 × 108 cfu mL−1 (LDLP), 5.0 × 109 cfu mL−1 (MDLP), and 5.0 × 1010 cfu mL−1 (HDLP) for 14 consecutive days. At day 15, the mice (LDLP, MDLP, HDLP, and ETEC groups) were challenged with ETEC and assessed at 0, 24, and 144 h. Animal health status; chemical and biological intestinal barriers; and body weight were measured. Results showed that L. plantarum G83 supplementation protected the mouse gut mainly by attenuating inflammation and improving the gut microflora. Most indices significantly changed at 24 h after challenge compared to those at 0 and 144 h. All treatment groups showed inhibited plasma diamine oxidase activity and D-lactate concentration. Tight-junction protein expression was down-regulated, and interleukin (IL)-1β, IL-6, IL-8, TLR4, and MyD88 levels were up-regulated in the jejunum in the LDLP and MDLP groups. The number of the Enterobacteriaceae family and the heat-labile enterotoxin (LT) gene decreased (P < 0.05) in the colons in the LDLP and MDLP groups. All data indicated that L. plantarum G83 could attenuate acute intestinal inflammation caused by ETEC infection, and the low and intermediate doses were superior to the high dose. These findings suggested that L. plantarum G83 may serve as a protective probiotic for intestinal disease and merits further investigation.
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Affiliation(s)
- Qian Liu
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xueqin Ni
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Qiang Wang
- Chengdu Wildlife Institute, Chengdu Zoo, Chengdu, China
| | - Zhirong Peng
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Lili Niu
- Chengdu Wildlife Institute, Chengdu Zoo, Chengdu, China
| | - Hengsong Wang
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yi Zhou
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Hao Sun
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Kangcheng Pan
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Bo Jing
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, China
| | - Dong Zeng
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
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Lanis JM, Alexeev EE, Curtis VF, Kitzenberg DA, Kao DJ, Battista KD, Gerich ME, Glover LE, Kominsky DJ, Colgan SP. Tryptophan metabolite activation of the aryl hydrocarbon receptor regulates IL-10 receptor expression on intestinal epithelia. Mucosal Immunol 2017; 10:1133-1144. [PMID: 28098246 PMCID: PMC5515702 DOI: 10.1038/mi.2016.133] [Citation(s) in RCA: 134] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 11/15/2016] [Indexed: 02/04/2023]
Abstract
IL-10 is a potent anti-inflammatory cytokine that inhibits the production of proinflammatory mediators. Signaling by IL-10 occurs through the IL-10 receptor (IL-10R), which is expressed in numerous cell types, including intestinal epithelial cells (IECs), where it is associated with development and maintenance of barrier function. Guided by an unbiased metabolomics screen, we identified tryptophan (Trp) metabolism as a major modifying pathway in interferon-γ (IFNγ)-dominant murine colitis. In parallel, we demonstrated that IFNγ induction of indoleamine 2,3-dioxygenase 1, an enzyme that catalyzes the conversion of Trp to kynurenine (Kyn), induces IL-10R1 expression. Based on these findings, we hypothesized that IL-10R1 expression on IEC is regulated by Trp metabolites. Analysis of the promoter region of IL-10R1 revealed a functional aryl hydrocarbon response element, which is induced by Kyn in luciferase-based IL-10R1 promoter assays. Additionally, this analysis confirmed that IL-10R1 protein levels were increased in response to Kyn in IEC in vitro. Studies using in vitro wounding assays revealed that Kyn accelerates IL-10-dependent wound closure. Finally, reduction of murine dextran sodium sulfate colitis through Kyn administration correlates with colonic IL-10R1 expression. Taken together, these results provide evidence on the importance of IL-10 signaling in intestinal epithelia and implicate AHR in the regulation of IL-10R1 expression in the colon.
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Affiliation(s)
- J M Lanis
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - E E Alexeev
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - V F Curtis
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - D A Kitzenberg
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - D J Kao
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - K D Battista
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - M E Gerich
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - L E Glover
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
| | - D J Kominsky
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana, USA
| | - S P Colgan
- Mucosal Inflammation Program, Aurora, Colarado, USA
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colarado, USA
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135
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Ly V, Bottelier M, Hoekstra PJ, Arias Vasquez A, Buitelaar JK, Rommelse NN. Elimination diets' efficacy and mechanisms in attention deficit hyperactivity disorder and autism spectrum disorder. Eur Child Adolesc Psychiatry 2017; 26:1067-1079. [PMID: 28190137 PMCID: PMC5591346 DOI: 10.1007/s00787-017-0959-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/31/2017] [Indexed: 12/22/2022]
Abstract
Nutrition plays an important role in neurodevelopment. This insight has led to increasing research into the efficacy of nutrition-related interventions for treating neurodevelopmental disorders. This review discusses an elimination diet as a treatment for attention deficit hyperactivity disorder and autism spectrum disorder, with a focus on the efficacy of the food additives exclusion diet, gluten-free/casein-free diet and oligoantigenic diet. Furthermore, we discuss the potential mechanisms of elimination diets' effects in these neurodevelopmental disorders. The main candidate mechanism is the microbiome-gut-brain axis possibly involving complex interactions between multiple systems, including the metabolic, immune, endocrine, and neural system. We conclude with practical implications and future directions into the investigation of an elimination diet's efficacy in the treatment of attention deficit hyperactivity disorder and autism spectrum disorder.
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Affiliation(s)
- Verena Ly
- Karakter, Child and Adolescents Psychiatry, Reinier Postlaan 12, 6525 GC, Nijmegen, The Netherlands.
- Department of Cognitive Neuroscience and Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands.
- Leiden University, Institute of Psychology and Leiden Institute for Brain and Cognition, Leiden, The Netherlands.
| | - Marco Bottelier
- Triversum, Child and Adolescent Psychiatry, Alkmaar, The Netherlands
| | - Pieter J Hoekstra
- Department of Child and Adolescent Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Alejandro Arias Vasquez
- Department of Cognitive Neuroscience and Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
- Department of Psychiatry and Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
- Department of Human Genetics and Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Jan K Buitelaar
- Karakter, Child and Adolescents Psychiatry, Reinier Postlaan 12, 6525 GC, Nijmegen, The Netherlands
- Department of Cognitive Neuroscience and Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Nanda N Rommelse
- Karakter, Child and Adolescents Psychiatry, Reinier Postlaan 12, 6525 GC, Nijmegen, The Netherlands
- Department of Psychiatry and Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, The Netherlands
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136
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Golkhalkhali B, Rajandram R, Paliany AS, Ho GF, Wan Ishak WZ, Johari CS, Chin KF. Strain-specific probiotic (microbial cell preparation) and omega-3 fatty acid in modulating quality of life and inflammatory markers in colorectal cancer patients: a randomized controlled trial. Asia Pac J Clin Oncol 2017; 14:179-191. [PMID: 28857425 DOI: 10.1111/ajco.12758] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 07/05/2017] [Indexed: 01/28/2023]
Abstract
AIM Colorectal cancer patients on chemotherapy usually have elevated levels of inflammatory markers and experience numerous side effects from chemotherapy thereby leading to poor quality of life. Omega-3 fatty acid and microbial cell preparation (MCP) have been known to provide significant benefits in patients on chemotherapy. The aim of this study was to determine the effect of supplementation of omega-3 fatty acid and MCP in quality of life, chemotherapy side effects and inflammatory markers in colorectal cancer patients on chemotherapy. METHODS A double-blind randomized study was carried out with 140 colorectal cancer patients on chemotherapy. Subjects were separated into two groups to receive either placebo or MCP [30 billion colony-forming unit (CFUs) per sachet] at a dose of two sachets daily for 4 weeks, and omega-3 fatty acid at a dose of 2 g daily for 8 weeks. Outcomes measured were quality of life, side effects of chemotherapy and levels of inflammatory markers such as interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and C-reactive protein. RESULTS The supplementation with MCP and omega-3 fatty acid improved the overall quality of life and alleviated certain side effects of chemotherapy. The supplementation with MCP and omega-3 fatty acid also managed to reduce the level of IL-6 (P = 0.002). There was a significant rise in the placebo group's serum TNF-α (P = 0.048) and IL-6 (P = 0.004). CONCLUSION The combined supplementation with MCP and omega-3 fatty acid may improve quality of life, reduce certain inflammatory biomarkers and relieve certain side effects of chemotherapy in colorectal patients on chemotherapy.
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Affiliation(s)
- Babak Golkhalkhali
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Retnagowri Rajandram
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Audra Shaleena Paliany
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Gwo Fuang Ho
- Faculty of Medicine Dean's Office, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Wan Zamaniah Wan Ishak
- Faculty of Medicine Dean's Office, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Che Shafini Johari
- Department of Dietetics, University Malaya Medical Center, Kuala Lumpur, Malaysia
| | - Kin Fah Chin
- Department of Surgery, Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
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137
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Innovative Solutions to Sticky Situations: Antiadhesive Strategies for Treating Bacterial Infections. Microbiol Spectr 2017; 4. [PMID: 27227305 DOI: 10.1128/microbiolspec.vmbf-0023-2015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Bacterial adherence to host tissue is an essential process in pathogenesis, necessary for invasion and colonization and often required for the efficient delivery of toxins and other bacterial effectors. As existing treatment options for common bacterial infections dwindle, we find ourselves rapidly approaching a tipping point in our confrontation with antibiotic-resistant strains and in desperate need of new treatment options. Bacterial strains defective in adherence are typically avirulent and unable to cause infection in animal models. The importance of this initial binding event in the pathogenic cascade highlights its potential as a novel therapeutic target. This article seeks to highlight a variety of strategies being employed to treat and prevent infection by targeting the mechanisms of bacterial adhesion. Advancements in this area include the development of novel antivirulence therapies using small molecules, vaccines, and peptides to target a variety of bacterial infections. These therapies target bacterial adhesion through a number of mechanisms, including inhibition of pathogen receptor biogenesis, competition-based strategies with receptor and adhesin analogs, and the inhibition of binding through neutralizing antibodies. While this article is not an exhaustive description of every advancement in the field, we hope it will highlight several promising examples of the therapeutic potential of antiadhesive strategies.
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138
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Bosi E, Bacci G, Mengoni A, Fondi M. Perspectives and Challenges in Microbial Communities Metabolic Modeling. Front Genet 2017; 8:88. [PMID: 28680442 PMCID: PMC5478693 DOI: 10.3389/fgene.2017.00088] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/09/2017] [Indexed: 01/31/2023] Open
Abstract
Bacteria have evolved to efficiently interact each other, forming complex entities known as microbial communities. These "super-organisms" play a central role in maintaining the health of their eukaryotic hosts and in the cycling of elements like carbon and nitrogen. However, despite their crucial importance, the mechanisms that influence the functioning of microbial communities and their relationship with environmental perturbations are obscure. The study of microbial communities was boosted by tremendous advances in sequencing technologies, and in particular by the possibility to determine genomic sequences of bacteria directly from environmental samples. Indeed, with the advent of metagenomics, it has become possible to investigate, on a previously unparalleled scale, the taxonomical composition and the functional genetic elements present in a specific community. Notwithstanding, the metagenomic approach per se suffers some limitations, among which the impossibility of modeling molecular-level (e.g., metabolic) interactions occurring between community members, as well as their effects on the overall stability of the entire system. The family of constraint-based methods, such as flux balance analysis, has been fruitfully used to translate genome sequences in predictive, genome-scale modeling platforms. Although these techniques have been initially developed for analyzing single, well-known model organisms, their recent improvements allowed engaging in multi-organism in silico analyses characterized by a considerable predictive capability. In the face of these advances, here we focus on providing an overview of the possibilities and challenges related to the modeling of metabolic interactions within a bacterial community, discussing the feasibility and the perspectives of this kind of analysis in the (near) future.
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Affiliation(s)
| | | | - Alessio Mengoni
- Department of Biology, University of FlorenceFlorence, Italy
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139
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Kitagawa K, Oda T, Saito H, Araki A, Gonoi R, Shigemura K, Hashii Y, Katayama T, Fujisawa M, Shirakawa T. Development of oral cancer vaccine using recombinant Bifidobacterium displaying Wilms' tumor 1 protein. Cancer Immunol Immunother 2017; 66:787-798. [PMID: 28299466 PMCID: PMC11028424 DOI: 10.1007/s00262-017-1984-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 03/05/2017] [Indexed: 01/12/2023]
Abstract
Several types of vaccine-delivering tumor-associated antigens (TAAs) have been developed in basic and clinical research. Wilms' tumor 1 (WT1), identified as a gene responsible for pediatric renal neoplasm, is one of the most promising TAA for cancer immunotherapy. Peptide and dendritic cell-based WT1 cancer vaccines showed some therapeutic efficacy in clinical and pre-clinical studies but as yet no oral WT1 vaccine can be administrated in a simple and easy way. In the present study, we constructed a novel oral cancer vaccine using a recombinant Bifidobacterium longum displaying WT1 protein. B. longum 420 was orally administered into mice inoculated with WT1-expressing tumor cells for 4 weeks to examine anti-tumor effects. To analyze the WT1-specific cellular immune responses to oral B. longum 420, mice splenocytes were isolated and cytokine production and cytotoxic activities were determined. Oral administrations of B. longum 420 significantly inhibited WT1-expressing tumor growth and prolonged survival in mice. Immunohistochemical study and immunological assays revealed that B. longum 420 substantially induced tumor infiltration of CD4+T and CD8+T cells, systemic WT1-specific cytokine production, and cytotoxic activity mediated by WT1-epitope specific cytotoxic T lymphocytes, with no apparent adverse effects. Our novel oral cancer vaccine safely induced WT1-specific cellular immunity via activation of the gut mucosal immune system and achieved therapeutic efficacy with several practical advantages over existing non-oral vaccines.
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Affiliation(s)
- Koichi Kitagawa
- Division of Translational Research for Biologics, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Tsugumi Oda
- Department of International Health, Kobe University Graduate School of Health Sciences, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Hiroki Saito
- Division of Translational Research for Biologics, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Ayame Araki
- Department of International Health, Kobe University Graduate School of Health Sciences, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Reina Gonoi
- Division of Advanced Medical Science, Kobe University Graduate School of Science, Technology and Innovation, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Katsumi Shigemura
- Division of Urology, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Yoshiko Hashii
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2, Yamada-Oka, Suita, Osaka, 565-0871, Japan
| | - Takane Katayama
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Masato Fujisawa
- Division of Urology, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Toshiro Shirakawa
- Division of Translational Research for Biologics, Department of Internal Related, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
- Department of International Health, Kobe University Graduate School of Health Sciences, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
- Division of Advanced Medical Science, Kobe University Graduate School of Science, Technology and Innovation, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
- Division of Urology, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
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140
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Domingos-Lopes M, Nagy A, Stanton C, Ross P, Gelencsér E, Silva C. Immunomodulatory activity of exopolysaccharide producing Leuconostoc citreum strain isolated from Pico cheese. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.03.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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141
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Kong W, Huang C, Tang Y, Zhang D, Wu Z, Chen X. Effect of Bacillus subtilis on Aeromonas hydrophila-induced intestinal mucosal barrier function damage and inflammation in grass carp (Ctenopharyngodon idella). Sci Rep 2017; 7:1588. [PMID: 28484272 PMCID: PMC5431481 DOI: 10.1038/s41598-017-01336-9] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/28/2017] [Indexed: 12/19/2022] Open
Abstract
Our study explored the effect of oral intubation of Bacillus subtilis on Aeromonas hydrophila-induced intestinal mucosal barrier function damage and inflammation in grass carp. The mid-intestine mucosal tissue was collected for ATPase activity measurement. Intestinal mucosa was also ultrastructurally examined with transmission electron microscope (TEM), and its permeability was determined using Evans blue (EB) and D-lactic acid. The mid-intestine pro-inflammation cytokine, MyD88 and tight junction (TJ) protein mRNA expression levels were measured using real-time quantitative PCR. The results revealed that B. subtilis was found to prevent the decrease in the activity of Na+, K+-ATPase and Ca2+, Mg2+-ATPase, as well as the increase in EB and D-lactic acid concentration and inflammation induced by A. hydrophila in grass carp. Compared with A. hydrophila groups, B. subtilis safeguarded the integrity of intestinal villi and tight junction structure and restrained A. hydrophila-induced down-regulation of TJ proteins zonula occludens-1 (ZO-1) and occludin. B. subtilis also restrained up-regulation of TJ protein claudin b, pro-inflammation cytokine tumour necrosis factor α (TNF-α), cytokine interleukin 8 (IL-8), IL-1β, and adaptor protein myeloid differentiation factor 88 (MyD88) mRNA levels. Thus, oral intubation of B. subtilis could reduce A. hydrophila-induced intestinal mucosal barrier function damage and inflammation.
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Affiliation(s)
- Weiguang Kong
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
- Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Wuhan, 430070, China
| | - Can Huang
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ying Tang
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan, 430070, China
| | - Ding Zhang
- Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Wuhan, 430070, China
| | - Zhixin Wu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
- Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Wuhan, 430070, China.
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan, 430070, China.
| | - Xiaoxuan Chen
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
- Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Wuhan, 430070, China.
- Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan, 430070, China.
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Silvan JM, Mingo E, Martinez-Rodriguez AJ. Grape seed extract (GSE) modulates campylobacter pro-inflammatory response in human intestinal epithelial cell lines. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1312292] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Jose Manuel Silvan
- Institute of Food Science Research (CIAL), CSIC-UAM. Department of Biotechnology and Microbiology, Autonoma University of Madrid, Madrid, Spain
| | - Elisa Mingo
- Institute of Food Science Research (CIAL), CSIC-UAM. Department of Biotechnology and Microbiology, Autonoma University of Madrid, Madrid, Spain
| | - Adolfo J. Martinez-Rodriguez
- Institute of Food Science Research (CIAL), CSIC-UAM. Department of Biotechnology and Microbiology, Autonoma University of Madrid, Madrid, Spain
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143
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Schaeck M, Reyes-López FE, Vallejos-Vidal E, Van Cleemput J, Duchateau L, Van den Broeck W, Tort L, Decostere A. Cellular and transcriptomic response to treatment with the probiotic candidate Vibrio lentus in gnotobiotic sea bass (Dicentrarchus labrax) larvae. FISH & SHELLFISH IMMUNOLOGY 2017; 63:147-156. [PMID: 28119147 DOI: 10.1016/j.fsi.2017.01.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 01/17/2017] [Accepted: 01/20/2017] [Indexed: 06/06/2023]
Abstract
The present study aimed at evaluating the cellular and transcriptomic responses induced by the probiotic candidate Vibrio lentus with gnotobiotic European sea bass (Dicentrarchus labrax, Linnaeus 1785) larvae. For this, a histomorphological analysis was performed using the terminal deoxynucleotidyltransferase-mediated dUTP nick end labeling (TUNEL) and the anti-proliferating cell nuclear antigen (PCNA) assay. In addition, a global transcriptomic approach was adopted to study the whole body mRNA changes upon administration of V. lentus by microarrays with the custom Agilent sea bass oligonucleotide-microarray v2.0 (4 × 44 K). Following V. lentus administration, the apoptotic and cell proliferative indexes did not show significant differences between treatments for hindgut nor for midgut. However, V. lentus treatment did significantly modify the gene expression related not only to cell proliferation and cell death, but also to cell adhesion, reactive oxygen species metabolism, iron transport, and immune response. Our data represent the first global analysis of the effects of the probiotic candidate V. lentus on the gene expression profile in gnotobiotic European sea bass, and as such, provides a first delineation of the mechanisms by which this agent interacts with its host and exerts its beneficial effects.
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Affiliation(s)
- Marlien Schaeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Felipe E Reyes-López
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Eva Vallejos-Vidal
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Jolien Van Cleemput
- Department of Virology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Luc Duchateau
- Department of Comparative Physiology and Biometrics, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Wim Van den Broeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Lluis Tort
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Annemie Decostere
- Department of Pathology, Bacteriology and Avian diseases, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
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144
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Wu Y, Wang Y, Zou H, Wang B, Sun Q, Fu A, Wang Y, Wang Y, Xu X, Li W. Probiotic Bacillus amyloliquefaciens SC06 Induces Autophagy to Protect against Pathogens in Macrophages. Front Microbiol 2017; 8:469. [PMID: 28382029 PMCID: PMC5360707 DOI: 10.3389/fmicb.2017.00469] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 03/07/2017] [Indexed: 01/25/2023] Open
Abstract
Probiotics are increasingly applied in popularity in both humans and animals. Decades of research has revealed their beneficial effects, including the immune modulation in intestinal pathogens inhibition. Autophagy—a cellular process that involves the delivery of cytoplasmic proteins and organelles to the lysosome for degradation and recirculation—is essential to protect cells against bacterial pathogens. However, the mechanism of probiotics-mediated autophagy and its role in the elimination of pathogens are still unknown. Here, we evaluated Bacillus amyloliquefaciens SC06 (Ba)-induced autophagy and its antibacterial activity against Escherichia coli (E. coli) in murine macrophage cell line RAW264.7 cells. Western blotting and confocal laser scanning analysis showed that Ba activated autophagy in a dose- and time-dependent manner. Ba-induced autophagy was found to play a role in the elimination of intracellular bacteria when RAW264.7 cells were challenged with E. coli. Ba induced autophagy by increasing the expression of Beclin1 and Atg5-Atg12-Atg16 complex, but not the AKT/mTOR signaling pathway. Moreover, Ba pretreatment attenuated the activation of JNK in RAW264.7 cells during E. coli infection, further indicating a protective role for probiotics via modulating macrophage immunity. The above findings highlight a novel mechanism underlying the antibacterial activity of probiotics. This study enriches the current knowledge on probiotics-mediated autophagy, and provides a new perspective on the prevention of bacterial infection in intestine, which further the application of probiotics in food products.
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Affiliation(s)
- Yanping Wu
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Yang Wang
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Hai Zou
- Department of Cardiology, Zhejiang Provincial People's Hospital Hangzhou, China
| | - Baikui Wang
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Qiming Sun
- Department of Biochemistry, School of Medicine, Zhejiang University Hangzhou, China
| | - Aikun Fu
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Yuanyuan Wang
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Yibing Wang
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Xiaogang Xu
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Weifen Li
- Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University Hangzhou, China
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145
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Wang J, Li B, Zhou L, Zhang X, Shi P. Probiotic potential and function of aLactobacillusstrain L1 isolated from Silage. J Food Saf 2016. [DOI: 10.1111/jfs.12338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Wang
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology, 130 Meilong Road; Shanghai 200237 P. R. China
| | - Beibei Li
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology, 130 Meilong Road; Shanghai 200237 P. R. China
| | - Li Zhou
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology, 130 Meilong Road; Shanghai 200237 P. R. China
| | - Xiaoyan Zhang
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology, 130 Meilong Road; Shanghai 200237 P. R. China
| | - Ping Shi
- State Key Laboratory of Bioreactor Engineering; East China University of Science and Technology, 130 Meilong Road; Shanghai 200237 P. R. China
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146
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Bluemel S, Williams B, Knight R, Schnabl B. Precision medicine in alcoholic and nonalcoholic fatty liver disease via modulating the gut microbiota. Am J Physiol Gastrointest Liver Physiol 2016; 311:G1018-G1036. [PMID: 27686615 PMCID: PMC5206291 DOI: 10.1152/ajpgi.00245.2016] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 09/25/2016] [Indexed: 02/08/2023]
Abstract
Alcoholic liver disease (ALD) and nonalcoholic fatty liver disease (NAFLD) represent a major health burden in industrialized countries. Although alcohol abuse and nutrition play a central role in disease pathogenesis, preclinical models support a contribution of the gut microbiota to ALD and NAFLD. This review describes changes in the intestinal microbiota compositions related to ALD and NAFLD. Findings from in vitro, animal, and human studies are used to explain how intestinal pathology contributes to disease progression. This review summarizes the effects of untargeted microbiome modifications using antibiotics and probiotics on liver disease in animals and humans. While both affect humoral inflammation, regression of advanced liver disease or mortality has not been demonstrated. This review further describes products secreted by Lactobacillus- and microbiota-derived metabolites, such as fatty acids and antioxidants, that could be used for precision medicine in the treatment of liver disease. A better understanding of host-microbial interactions is allowing discovery of novel therapeutic targets in the gut microbiota, enabling new treatment options that restore the intestinal ecosystem precisely and influence liver disease. The modulation options of the gut microbiota and precision medicine employing the gut microbiota presented in this review have excellent prospects to improve treatment of liver disease.
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Affiliation(s)
- Sena Bluemel
- Department of Medicine, University of California San Diego, La Jolla, California
| | - Brandon Williams
- Department of Medicine, University of California San Diego, La Jolla, California
| | - Rob Knight
- Departments of Pediatrics and Computer Science and Engineering, University of California San Diego, La Jolla, California; and
| | - Bernd Schnabl
- Department of Medicine, University of California San Diego, La Jolla, California;
- Veterans Affairs San Diego Healthcare System, San Diego, California
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147
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Sun Y, Zhu DQ, Zhang QX, Pang XH, Sun SR, Liu F, Li AL, Meng XC. The Expression of GroEL Protein Amplified fromBifidobacterium animalissubsp.lactisKLDS 2.0603 and its Role in Competitive Adhesion to Caco-2. FOOD BIOTECHNOL 2016. [DOI: 10.1080/08905436.2016.1244769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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148
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Tian Z, Liu X, Dai R, Xiao Y, Wang X, Bi D, Shi D. Enterococcus faecium HDRsEf1 Protects the Intestinal Epithelium and Attenuates ETEC-Induced IL-8 Secretion in Enterocytes. Mediators Inflamm 2016; 2016:7474306. [PMID: 27890970 PMCID: PMC5116501 DOI: 10.1155/2016/7474306] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/21/2016] [Accepted: 09/28/2016] [Indexed: 12/25/2022] Open
Abstract
The probiotic Enterococcus faecium HDRsEf1 (Ef1) has been shown to have positive effects on piglet diarrhoea, but the mechanism has not yet been elucidated. In this study, using the IPEC-J2 cell line to mimic intestinal epithelial cells and enterotoxigenic Escherichia coli (ETEC) K88ac as a representative intestinal pathogen, the mechanism underlying Ef1 protection against an enteropathogen was investigated. The results demonstrated that Ef1 was effective in displacing K88ac from the IPEC-J2 cell layer. Moreover, Ef1 and its cell-free supernatant (S-Ef1) modulate IL-8 released by IPEC-J2 cells. Ef1 and its cell-free supernatant showed the potential to protect enterocytes from an acute inflammatory response. In addition, Ef1 and its cell-free supernatant increased the transepithelial electrical resistance (TEER) of the enterocyte monolayer, thus strengthening the intestinal barrier against ETEC. These results may contribute to the development of therapeutic interventions using Ef1 in intestinal disorders of piglets.
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Affiliation(s)
- Zhongyuan Tian
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xiaofang Liu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ran Dai
- College of Animal Science and Technology, Agricultural University of Hebei, Baoding 071000, China
| | - Yuncai Xiao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xiliang Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Dingren Bi
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Deshi Shi
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, Hubei 430070, China
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149
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Li Z, Jin H, Oh SY, Ji GE. Anti-obese effects of two Lactobacilli and two Bifidobacteria on ICR mice fed on a high fat diet. Biochem Biophys Res Commun 2016; 480:222-227. [DOI: 10.1016/j.bbrc.2016.10.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 10/13/2016] [Indexed: 02/07/2023]
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150
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Hauptmann M, Schaible UE. Linking microbiota and respiratory disease. FEBS Lett 2016; 590:3721-3738. [PMID: 27637588 DOI: 10.1002/1873-3468.12421] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 08/30/2016] [Accepted: 09/07/2016] [Indexed: 12/13/2022]
Abstract
An increasing body of evidence indicates the relevance of microbiota for pulmonary health and disease. Independent investigations recently demonstrated that the lung harbors a resident microbiota. Therefore, it is intriguing that a lung microbiota can shape pulmonary immunity and epithelial barrier functions. Here, we discuss the ways how the composition of the microbial community in the lung may influence pulmonary health and vice versa, factors that determine community composition. Prominent microbiota at other body sites such as the intestinal one may also contribute to pulmonary health and disease. However, it is difficult to discriminate between influences of lung vs. gut microbiota due to systemic mutuality between both communities. With focuses on asthma and respiratory infections, we discuss how microbiota of lung and gut can determine pulmonary immunity and barrier functions.
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Affiliation(s)
- Matthias Hauptmann
- Priority Program Infections, Cellular Microbiology, Research Center Borstel, Germany
| | - Ulrich E Schaible
- Priority Program Infections, Cellular Microbiology, Research Center Borstel, Germany.,German Centre for Infection Research, TTU-TB, Borstel, Germany
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