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Adegoke TV, Yang B, Tian X, Yang S, Gao Y, Ma J, Wang G, Si P, Li R, Xing F. Simultaneous degradation of aflatoxin B 1 and zearalenone by Porin and Peroxiredoxin enzymes cloned from Acinetobacter nosocomialis Y1. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132105. [PMID: 37494799 DOI: 10.1016/j.jhazmat.2023.132105] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/28/2023]
Abstract
Mycotoxin contamination can cause severe health issues for both humans and animals. This study examined the potential of enzymes derived from Acinetobacter nosocomialis Y1 to simultaneously degrade aflatoxin B1 (AFB1) and zearalenone (ZEN), which could have significant implications in reducing mycotoxin contamination. Two enzymes, Porin and Peroxiredoxin, were identified with molecular weights of 27.8 and 20.8 kDa, respectively. Porin could completely degrade 2 µg/mL of AFB1 and ZEN within 24 h at 80 °C and 60 °C, respectively. Peroxiredoxin could completely degrade 2 µg/mL of AFB1 and reduce ZEN by 91.12% within 24 h. The addition of Na+, Cu2+, and K+ ions enhanced the degradation activities of both enzymes. LC-MS/MS analysis revealed that the molar masses of the degradation products of AFB1 and ZEN were 286 g/mol and 322.06 g/mol, and the products were identified as AFD1 and α or β-ZAL, respectively. Vibrio fischeri bioluminescence assays further confirmed that the cytotoxicity of the two degradation products was significantly lower than that of AFB1 and ZEN. Based on these results, it can be inferred that the degradation product of ZEN is β-ZAL. These findings suggest that both enzymes have the potential to be utilized as detoxification enzymes in food and feed.
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Affiliation(s)
- Tosin Victor Adegoke
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Bolei Yang
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiaoyu Tian
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shuo Yang
- Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuan Gao
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Junning Ma
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Gang Wang
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Peidong Si
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Runyan Li
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Fuguo Xing
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Tang J, Yin L, Zhao Z, Ge L, Hou L, Liu Y, Chen X, Huang K, Gan F. Isolation, identification and safety evaluation of OTA-detoxification strain Pediococcus acidilactici NJB421 and its effects on OTA-induced toxicity in mice. Food Chem Toxicol 2023; 172:113604. [PMID: 36623685 DOI: 10.1016/j.fct.2023.113604] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 12/24/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
Ochratoxin A (OTA) is a potent mycotoxin found in foods and feeds, posing a health risk to animals and humans. Biological detoxification of OTA is considered a promising method, and some bacteria and fungi which can degrade OTA are isolated. However, research on safety and alleviating toxic effects are scarce. This study aims to isolate OTA-detoxification probiotics from natural samples and evaluate their safety and protective effects in mice. Here, a new OTA-detoxification strain named Pediococcus acidilactici NJB421 (P. acidilactici NJB421) was isolated from cow manure, which exhibited a removal rate of OTA at 48.53% for 48 h. P. acidilactici NJB421 exhibited high temperature resistance, acid tolerance, 0.3% bile salt and 1.4% trypsin resistance. The safety evaluation showed that P. acidilactici NJB421 at 2 × 108 CFU/per mouse had no abnormalities in body weight, organ indices, ALT, AST and ALP activities, BUN, CRE and TP contents. And P. acidilactici NJB421 alleviated the decreases in body weight, organ indices and small intestinal length, and alleviated intestinal injury, liver injury and kidney injury. These results suggest P. acidilactici NJB421 is safe and has protection against OTA poisoning, which provides a new OTA-detoxification strain for livestock and food industries.
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Affiliation(s)
- Jiangyu Tang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Liuwen Yin
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Zhiyong Zhao
- Institute for Agro-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Lei Ge
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Lili Hou
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Yunhuan Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Xingxiang Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Kehe Huang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Fang Gan
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; Institute of Animal Nutritional Health, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
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Oba S, Yildirim T, Karataş ŞM. Probiotics Safety Aspect of Functional Foods. JOURNAL OF CULINARY SCIENCE & TECHNOLOGY 2022. [DOI: 10.1080/15428052.2022.2135156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sirin Oba
- Department of Food Processing, Suluova Vocational School, Amasya University, Amasya, Turkey
| | - Tugce Yildirim
- Department of Biotechnology, Institution of Science, Amasya University, Amasya, Turkey
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L M L, L P B, S G G, L O S, O M D, R V B, L M S, M Ya S. Assessment of the Safety of Lactobacillus casei IMV B-7280 Probiotic Strain on a Mouse Model. Probiotics Antimicrob Proteins 2021; 13:1644-1657. [PMID: 33876388 PMCID: PMC8055307 DOI: 10.1007/s12602-021-09789-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2021] [Indexed: 01/19/2023]
Abstract
Probiotics, in particular Lactobacillus (lactic acid bacteria, LAB) strains, are widely used in clinical practice. Despite that these probiotics have GRAS (generally regarded as safe) and qualified presumption of safety (QPS) statuses, the safety of particular strains still needs to be thoroughly studied. The aim of the study was to evaluate the safety of Lact. casei IMV B-7280 strain by investigating toxicity and the effects on gut microbiota in experimental animal model. Male BALB/c mice (7-8 weeks, weight 20-24 g) were treated with amounts of Lact. casei IMV B-7280 strain: 5 × 106, 5 × 108, or 5 × 109 CFU/animal once per day during 7 days, or in the amount of 1 × 1010 CFU/animal once per day during 3 days (most of the proposed probiotic doses for humans-from 108 to 109 CFU) and monitored during 14 days. Blood tests and serum biochemistry were conducted; the cecal content from mice of the experimental and control groups were freshly collected and analyzed. At the end of the experiments (15th day), the presence of LAB in the heart, liver, kidney, and mesenteric lymph nodes and peripheral blood was determined; histology of the brain, liver, heart, fragments of the small and large intestine, and mesenteric lymph nodes was conducted. Survival rate of BALB/c mice treated with Lact. casei IMV B-7280 strain in different concentrations in toxicity experiments during 14 days was 100%. We observed no signs of toxicity as changes in gait, lethargy, sleep, somatomotor activity as well as changes in fur, eyes, skin and mucous membranes, tremors, behavior pattern, convulsions, salivation, diarrhea, and local injuries in mice from all experimental groups. After administration of probiotic strain, the number of opportunistic bacteria in cecal contents, such as Staphylococcus spp., Candida spp., Pseudomonas spp., and total aerobic and optionally anaerobic bacteria decreased compared to controls; the population of beneficial bacteria such as lactobacilli increased in cecal contents of these mice. LAB were not detected in the peripheral blood, heart, liver, kidneys, and mesenteric lymph nodes after administration of this strain to intact mice. Lact. casei IMV B-7280 strain is safe at dose up to 1010 CFU/animal during 3- and 7-day oral administration to mice and has a positive effect on the gut microbiota composition; it could be potentially considered as safe probiotic for humans.
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Affiliation(s)
- Lazarenko L M
- Zabolotny Institute of microbiology and virology, National Academy of Sciences of Ukraine, 154, Akad. Zabolotny str, Kyiv, 03143, Ukraine
| | - Babenko L P
- Zabolotny Institute of microbiology and virology, National Academy of Sciences of Ukraine, 154, Akad. Zabolotny str, Kyiv, 03143, Ukraine
| | - Gichka S G
- Bogomolets National Medical University, 13, T. Shevchenko blvd, Kyiv, 01601, Ukraine
| | - Sakhno L O
- RE Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, National Academy of Sciences of Ukraine, 45, Vasylkivska str, Kyiv, 03022, Ukraine
| | - Demchenko O M
- Zabolotny Institute of microbiology and virology, National Academy of Sciences of Ukraine, 154, Akad. Zabolotny str, Kyiv, 03143, Ukraine
| | - Bubnov R V
- Zabolotny Institute of microbiology and virology, National Academy of Sciences of Ukraine, 154, Akad. Zabolotny str, Kyiv, 03143, Ukraine.
| | - Sichel L M
- Pure Research Products, LLC, 6107 Chelsea Manor Court, Boulder, Colorado, 80301, USA
| | - Spivak M Ya
- Zabolotny Institute of microbiology and virology, National Academy of Sciences of Ukraine, 154, Akad. Zabolotny str, Kyiv, 03143, Ukraine
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Fakhry SS, Rashid FA, Khudiar MM, Ismail LA, Ismail SK, Kazem RJ. Characterization of Lactobacillus species proposed as probiotics. POTRAVINARSTVO 2021. [DOI: 10.5219/1479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An isolated Lactobacillus from several various sources were identified depending on morphological, microscopically and biochemical tests in vitro analysis of probiotic properties that included: an ability to tolerate in different concentration of bile salt, survival in acidic conditions, their antimicrobial activity, and S-layer characterizations were carried out. It was noticed that isolates of Lactobacillus rhamnosus and L. delbrueckii have a broad activity of antimicrobial and found the isolate L. rhamnosus represented with a survival percentage 6.9% at pH 4.5 and 5.1% at pH 2.0) also L. rhamnosus (5.7% at pH 4.5 and 4.9% at pH 2.0) tolerated acidic media, Lactobacillus spp. has antimicrobial activity against all gram-positive and negative tested isolates. 70 kDa of S-layer protein bands were detected with whole-cell SDS-PAGE analysis, and it's predominant in cells of isolates which grown in MRS broth anaerobically. It was noticed that the collected Lactobacillus isolates could be used as probiotic.
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Lazarenko L, Bubnov R, Babenko L, Melnykova O, Spivak M. Methodical approaches of estimation of probiotics` quality and rational principles of their usage in clinical practice. SCIENCERISE: BIOLOGICAL SCIENCE 2020. [DOI: 10.15587/2519-8025.2020.202216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Agrawal R. Chapter 3 Recent Developments in Food Biotechnology to Improve Human Health with Probiotics with Special Emphasis on Lowering Cholesterol. Microb Biotechnol 2016. [DOI: 10.1201/9781315367880-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Bujalance C, Jiménez-Valera M, Moreno E, Ruiz-López MD, Lasserrot A, Ruiz-Bravo A. Lack of correlation between in vitro antibiosis and in vivo protection against enteropathogenic bacteria by probiotic lactobacilli. Res Microbiol 2013; 165:14-20. [PMID: 24140789 DOI: 10.1016/j.resmic.2013.10.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 10/03/2013] [Indexed: 10/26/2022]
Abstract
Increased resistance to infection is one of the beneficial effects attributed to probiotic microorganisms. This effect may be due to several mechanisms: production of inhibitory substances, blocking of adhesion sites on the intestinal surface, competition for nutrients and stimulation of mucosal and systemic immunity. The present study aimed to investigate the correlation between in vitro and in vivo antimicrobial activity of probiotic lactobacilli. The agar spot test was used to show that twenty Lactobacillus strains were able to inhibit the enteropathogenic bacterium Yersinia enterocolitica. This inhibition was mainly attributable to a decrease in pH resulting from dextrose fermentation by lactobacilli. The inhibition of Y. enterocolitica, Salmonella enterica serovar Typhimurium and Listeria monocytogenes by two probiotic strains, Lactobacillus casei C1 and Lactobacillus plantarum C4, was also associated with the pH decrease. However, both strains lacked protective effects in mouse experimental infection models, with the exception of long-lasting pre-treatment with L. plantarum C4, which exerted a partial protective effect against S. Typhimurium that was attributable to an immunostimulatory mechanism. Our results show that in vitro antibiosis tests do not provide useful information on the probiotic potential of Lactobacillus strains.
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Affiliation(s)
- Carmen Bujalance
- Department of Microbiology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain.
| | - María Jiménez-Valera
- Department of Microbiology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain.
| | - Encarnación Moreno
- Department of Microbiology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain.
| | - María-Dolores Ruiz-López
- Department of Nutrition and Bromatology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain.
| | - Agustín Lasserrot
- Biotmicrogren S. L., Parque tecnológico de Ciencias de la Salud, BIC nave 6, 18100 Armilla, Granada, Spain.
| | - Alfonso Ruiz-Bravo
- Department of Microbiology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain.
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Mohania D, Kansal VK, Shah D, Nagpal R, Kumar M, Gautam SK, Singh B, Behare PV. Therapeutic effect of probiotic dahi on plasma, aortic, and hepatic lipid profile of hypercholesterolemic rats. J Cardiovasc Pharmacol Ther 2013; 18:490-7. [PMID: 23671271 DOI: 10.1177/1074248413487431] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This study examined the effects of probiotic dahi prepared by Lactobacillus plantarum Lp9 and dahi culture in buffalo milk on lowering cholesterol in rats fed a hypercholesterolemic basal diet. Male Wistar rats were divided into 3 groups and fed with probiotic dahi, dahi, or buffalo milk for 120 days. Following the consumption of supplements (probiotic dahi, dahi or buffalo milk), the animals were fed a basal hypercholesterolemic diet. Plasma total cholesterol and triglycerides (TAGs) were decreased by 35% and 72% in rats fed with probiotic dahi group, while cholesterol levels increased by 70% and TAGs increased by 97% in buffalo milk and 59% in dahi fed groups. Supplementation of probiotic dahi further lowered plasma low-density lipoprotein (LDL) + very-low-density lipoprotein (VLDL)- cholesterol by 59%, while it elevated plasma high-density lipoprotein (HDL)-cholesterol by 116%. As a result, atherogenic index, the ratio of HDL to LDL + VLDL was markedly improved. Deposition of cholesterol and TAGs in liver and aorta were significantly reduced in rats fed with probiotic dahi. These observations suggest that probiotic dahi may have therapeutic potential to decrease plasma, hepatic and aortic lipid profile, and attenuate diet-induced hypercholesterolemia.
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Affiliation(s)
- Dheeraj Mohania
- Animal Biochemistry Division, National Dairy Research Institute, Karnal, Haryana, India.
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Dicks LMT, Botes M. Probiotic lactic acid bacteria in the gastro-intestinal tract: health benefits, safety and mode of action. Benef Microbes 2011; 1:11-29. [PMID: 21831747 DOI: 10.3920/bm2009.0012] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Lactic acid bacteria (LAB) have received considerable attention as probiotics over the past few years. This concept has grown from traditional dairy products to a profitable market of probiotic health supplements and functional foods. Extensive research is done on novel potential probiotic strains, with specific emphasis on their health benefits and mode of action. Criteria for the selection of probiotic strains have only recently been formulated by the Food and Agriculture Organization of the United Nations and the World Health Organization (FAO/WHO). Several in vitro techniques have been developed to evaluate the probiotic properties of strains. In many cases, this is followed by in vivo tests. Safety studies are also obligatory, as a few cases of bacteremia caused by LAB have been reported. This review focuses on the health benefits and safety of LAB probiotics, the criteria used to select a probiotic, mode of action and the impact these organisms have on natural microbiota in the gastro-intestinal tract.
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Affiliation(s)
- L M T Dicks
- Department of Microbiology, University of Stellenbosch, South Africa.
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NOD dendritic cells stimulated with Lactobacilli preferentially produce IL-10 versus IL-12 and decrease diabetes incidence. Clin Dev Immunol 2011; 2011:630187. [PMID: 21716731 PMCID: PMC3119457 DOI: 10.1155/2011/630187] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Revised: 03/25/2011] [Accepted: 04/05/2011] [Indexed: 12/22/2022]
Abstract
Dendritic cells (DCs) from NOD mice produced high levels of IL-12 that induce IFNγ-producing T cells involved in diabetes development. We propose to utilize the microorganism ability to induce tolerogenic DCs to abrogate the proinflammatory process and prevent diabetes development. NOD DCs were stimulated with Lactobacilli (nonpathogenic bacteria targeting TLR2) or lipoteichoic acid (LTA) from Staphylococcus aureus (TLR2 agonist). LTA-treated DCs produced much more IL-12 than IL-10 and accelerated diabetes development when transferred into NOD mice. In contrast, stimulation of NOD DCs with L. casei favored the production of IL-10 over IL-12, and their transfer decreased disease incidence which anti-IL-10R antibodies restored. These data indicated that L. casei can induce NOD DCs to develop a more tolerogenic phenotype via production of the anti-inflammatory cytokine, IL-10. Evaluation of the relative production of IL-10 and IL-12 by DCs may be a very useful means of identifying agents that have therapeutic potential.
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Hol J, de Jongste JC, Nieuwenhuis EE. Quoting a landmark paper on the beneficial effects of probiotics. J Allergy Clin Immunol 2010; 124:1354-6.e9. [PMID: 19818483 DOI: 10.1016/j.jaci.2009.07.047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Revised: 07/21/2009] [Accepted: 07/23/2009] [Indexed: 02/06/2023]
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Sonnenborn U, Schulze J. The non-pathogenicEscherichia colistrain Nissle 1917 – features of a versatile probiotic. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2009. [DOI: 10.3109/08910600903444267] [Citation(s) in RCA: 127] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Jürgen Schulze
- Department of Medicine, Ardeypharm GmbH, Herdecke, Germany
- *Present address: Alice-Bloch-Str. 7, D-14558 Nuthetal, Germany
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Babincová M, Babinec P. Probiotic culture genetically modified to produce SDF-1 chemokine may be useful for stem cell based therapy of Crohn's disease. Med Hypotheses 2009; 73:860. [PMID: 19467791 DOI: 10.1016/j.mehy.2009.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2009] [Revised: 04/24/2009] [Accepted: 04/25/2009] [Indexed: 10/20/2022]
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Abstract
Severe sepsis with associated multisystem organ dysfunction is a leading cause of death in patients hospitalized in intensive care units. The gastrointestinal system plays a key role in the pathogenesis of multisystem organ dysfunction owing to a breakdown of intestinal barrier function and increased translocation of bacteria and bacterial components into the systemic circulation. During critical illness, alterations occur in gut microflora owing to several factors, including changes in circulating stress hormones, gut ischemia, immunosuppression, the use of antibiotics, and lack of nutrients. The importance of endogenous strains of probiotic bacteria such as Bifidobacterium and Lactobacillus in maintaining intestinal barrier function and also in modulating mucosal and systemic immune responses is becoming evident from numerous studies. Bacteria in synbiotic (prebiotic and probiotic combinations) and probiotic (mutistrain combinations) preparations are being used experimentally in the treatment of acute pancreatitis, liver transplantation, and in trauma patients. Recent studies have shown treatment of patients with multiple trauma or acute pancreatitis with synbiotic preparations resulted in reduced rates of infection, sepsis, and mortality in patients. Enterally fed patients in the intensive care unit treated with a probiotic compound demonstrated enhanced immune function and decreased incidence of diarrhea. Results from these clinical trials are encouraging, and warrant further investigation to clarify which probiotic bacterial strains are of most benefit to this population.
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Roller M, Clune Y, Collins K, Rechkemmer G, Watzl B. Consumption of prebiotic inulin enriched with oligofructose in combination with the probiotics Lactobacillus rhamnosus and Bifidobacterium lactis has minor effects on selected immune parameters in polypectomised and colon cancer patients. Br J Nutr 2007; 97:676-84. [PMID: 17349080 DOI: 10.1017/s0007114507450292] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Probiotics (PRO) modulate immunity in humans, while the effect of prebiotics (PRE) and synbiotics (SYN) on the human immune system are not well studied yet. The objective of this study was to investigate whether daily intake of a SYN modulates immune functions. In a randomised double-blind, placebo-controlled trial, thirty-four colon cancer patients who had undergone ‘curative resection’ and forty polypectomised patients participated. Subjects of the SYN group daily received encapsulated bacteria (1 × 1010 colony-forming units of Lactobacillus rhamnosus GG (LGG) and 1 × 1010 colony-forming units of Bifidobacterium lactis Bb12 (Bb12)) and 10 g of inulin enriched with oligofructose. Controls received encapsulated maltodextrin and 10 g of maltodextrin. Prior to intervention (T1), and 6 (T2) and 12 weeks after the start of the intervention (T3), phagocytic and respiratory burst activity of neutrophils and monocytes, lytic activity of natural killer cells and production of interleukin (IL)-2, IL-10 and IL-12, as well as tumour necrosis factor-α and interferon-γ (IFN-γ) by activated peripheral blood mononuclear cells (PBMC) were measured. In faeces, the concentrations of transforming growth factor-β1 and prostaglandin E2 were measured. IL-2 secretion by activated PBMC from the polyp group increased significantly between T1 or T2 and T3 (P < 0·05). In the cancer group, SYN treatment resulted in an increased capacity of PBMC to produce IFN-γ at T3 (P < 0·05). Other immunity-related parameters were not affected by SYN treatment, neither in the cancer nor in the polyp group. In conclusion, supplementation with this SYN has minor stimulatory effects on the systemic immune system of the two study groups. Further studies in humans should aim to focus on the gut-associated immune system.
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Affiliation(s)
- Monika Roller
- Institute of Nutritional Physiology, Federal Research Centre for Nutrition and Food, Haid-und-Neu-Str. 9, D-76131 Karlsruhe, Germany
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Paramithiotis S, Melissari I, Drosinos EH. In vitro assessment of properties associated with the survival through the gastro-intestinal tract of staphylococci isolated from traditional sausage fermentation. Food Microbiol 2006; 23:663-71. [PMID: 16943066 DOI: 10.1016/j.fm.2005.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2005] [Revised: 11/08/2005] [Accepted: 11/17/2005] [Indexed: 11/24/2022]
Abstract
Thirteen Staphylococcus sp. strains, previously isolated from spontaneous sausage fermentation, were in vitro examined for properties associated with their ability to survive through the gastro-intestinal tract. None of the strains were able to survive exposure to pH 1 or pH 2, while for most of them, a population reduction, ranging from 77.3% to 99.0% and a surviving population from 1.7 x 10(8) to 9.0 x 10(6) was observed after exposure to pH 3. None of the strains exhibited bile salt hydrolase activity or production of antimicrobial compounds, while all of them were resistant to pancreatin. Only S. cohnii cohnii LQC 5112 was found to be alpha-haemolytic, seven other strains were beta-haemolytic and the rest gamma-haemolytic. All strains were sensitive to erythromycin, ampicillin (but S. intermedius LQC 5023) and chloramphenicol while most of them were sensitive to tetracycline. On the other hand, most of the strains were resistant to novobiocin. Furthermore, their aptitude, not only to withstand, but to proliferate in the presence of bile salts, as well, even at an acidic environment and their ability to adhere to stainless-steel plates, indicate the need for an in vivo study.
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Affiliation(s)
- Spiros Paramithiotis
- Laboratory of Food Quality Control and Hygiene, Department of Food Science and Technology, Agricultural University of Athens, Iera Odos 75, GR-11855 Athens, Greece.
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18
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Bujalance C, Jiménez-Valera M, Moreno E, Ruiz-Bravo A. A selective differential medium for Lactobacillus plantarum. J Microbiol Methods 2006; 66:572-5. [PMID: 16554099 DOI: 10.1016/j.mimet.2006.02.005] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2005] [Revised: 02/01/2006] [Accepted: 02/09/2006] [Indexed: 11/29/2022]
Abstract
The quantification of exogenous lactobacilli in faecal samples is frequently required for the evaluation of the intestinal colonization by probiotic bacteria. In this study, a selective and differential medium, designated LPSM, was developed for the culture of exogenous Lactobacillus plantarum. In quantitative assays, LPSM showed a sensitivity similar to those of enriched and Lactobacillus-adapted media. The presence of ciprofloxacin made LPSM inhibitory to most intestinal bacteria, including endogenous acid lactic bacteria, whereas exogenous L. plantarum strains grew producing a yellow color caused by acid production from sorbitol in the presence of bromocresol purple. The results showed that LPSM is suitable for detection and enumeration of L. plantarum in faecal samples.
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Affiliation(s)
- Carmen Bujalance
- Department of Microbiology, Faculty of Pharmacy, University of Granada, Granada 18071, Spain
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19
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Yeung PSM, Kitts CL, Cano R, Tong PS, Sanders ME. Application of genotypic and phenotypic analyses to commercial probiotic strain identity and relatedness. J Appl Microbiol 2005; 97:1095-104. [PMID: 15479427 DOI: 10.1111/j.1365-2672.2004.02400.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS The objective of this study was to generate strain-specific genomic patterns of a bank of 67 commercial and reference probiotic strains, with a focus on probiotic lactobacilli. METHODS AND RESULTS Pulsed-field gel electrophoresis (PFGE) was used as the primary method for strain differentiation. This method was compared with carbohydrate fermentation analysis. To supplement visual comparison, PFGE patterns were analysed quantitatively by cluster analysis using unweighted pair group method with arithmetic averages. SmaI, NotI and XbaI were found to effectively generate clear and easy-to-interpret PFGE patterns of a range of probiotic strains. Some probiotic strains from different sources shared highly similar PFGE patterns. CONCLUSIONS Results document the value of genotypic strain identification methods, combined with phenotypic methods, for determining probiotic strain identity and relatedness. No correlation was found between relatedness determined by carbohydrate fermentation profiles alone compared with PFGE analysis alone. Some commercial strains are probably derived from similar sources. SIGNIFICANCE AND IMPACT OF THE STUDY This approach is valuable to the probiotic industry to develop commercial strain identification patterns, to provide quality control of strain manufacturing production runs, to track use of protected strains and to determine the relatedness among different research and commercial probiotic strains.
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Affiliation(s)
- P S M Yeung
- Dairy Products Technology Center, California Polytechnic State University, San Luis Obispo, USA
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20
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Maley CC, Reid BJ, Forrest S. Cancer Prevention Strategies That Address the Evolutionary Dynamics of Neoplastic Cells: Simulating Benign Cell Boosters and Selection for Chemosensitivity. Cancer Epidemiol Biomarkers Prev 2004. [DOI: 10.1158/1055-9965.1375.13.8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Abstract
Cells in neoplasms evolve by natural selection. Traditional cytotoxic chemotherapies add further selection pressure to the evolution of neoplastic cells, thereby selecting for cells resistant to the therapies. An alternative proposal is a benign cell booster. Rather than trying to kill the highly dysplastic or malignant cells directly, a benign cell booster increases the fitness of the more benign cells, which may be either normal or benign clones, so that they may outcompete more advanced or malignant cells in a neoplasm. In silico simulations of benign cell boosters in neoplasms with evolving clones show benign cell boosters to be effective at destroying advanced or malignant cells and preventing relapse even when applied late in progression. These results are conditional on the benign cell boosters giving a competitive advantage to the benign cells in the neoplasm. Furthermore, the benign cell boosters must be applied over a long period of time in order for the benign cells to drive the dysplastic cells to extinction or near extinction. Most importantly, benign cell boosters based on this strategy must target a characteristic of the benign cells that is causally related to the benign state to avoid relapse. Another promising strategy is to boost cells that are sensitive to a cytotoxin, thereby selecting for chemosensitive cells, and then apply the toxin. Effective therapeutic and prevention strategies will have to alter the competitive dynamics of a neoplasm to counter progression toward invasion, metastasis, and death.
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Affiliation(s)
- Carlo C. Maley
- 1Human Biology and Divisions of
- 2Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington; Departments of
| | - Brian J. Reid
- 1Human Biology and Divisions of
- 2Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington; Departments of
- 3Medicine and
- 4Genome Sciences, University of Washington, Seattle, Washington; and
| | - Stephanie Forrest
- 5Department of Computer Science, University of New Mexico, Albuquerque, New Mexico
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21
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Cornaglia G, Lönnroth A, Struelens M. Report from the European Conference on the Role of Research in Combating Antibiotic Resistance, 2003. Clin Microbiol Infect 2004; 10:473-97. [PMID: 15113331 DOI: 10.1111/j.1469-0691.2004.00907.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Europe has been at the forefront of efforts to control antibiotic resistance, and this globally important health care problem has prompted numerous recommendations for action at both the national and international levels. Starting in 2002, research on antimicrobial resistance has been considered to be one of the specific objectives of the Sixth Framework Programme (FP6) within the European Union. This report summarises the plenary presentations, as well as the findings of six Working Groups covering specific areas of antibiotic resistance, given at a conference in November 2003 entitled 'The Role of Research in Combating Antibiotic Resistance', co-organised by the European Union and the European Society for Clinical Microbiology and Infectious Diseases, and held in Rome under the patronage of the Italian government.
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Affiliation(s)
- G Cornaglia
- Department of Pathology, University of Verona, Verona, Italy.
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22
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Tailliez P. Les lactobacilles : propriétés, habitats, rôle physiologique et intérêt en santé humaine. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/s1294-5501(04)94231-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bellou A, Schaub B, Ting L, Finn PW. Toll receptors modulate allergic responses: interaction with dendritic cells, T cells and mast cells. Curr Opin Allergy Clin Immunol 2003; 3:487-94. [PMID: 14612674 DOI: 10.1097/00130832-200312000-00011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The discovery of Toll-like receptors has generated much interest in understanding the impact of innate immunity on adaptive immune responses, including allergic diseases. RECENT FINDINGS Recent studies suggest that Toll-like receptor pathways may mediate interactions between dendritic cells, T lymphocytes and mast cells, thus modulating allergic immune responses. Toll-like receptor signaling triggers dendritic cell maturation, which primes naive T lymphocytes towards specific T helper cell types 1 and 2 immune responses. Although a T helper cell type 1/2 balance may be important in modulating allergic responses, T regulatory cells that suppress certain immune responses may be critical in immune regulation. SUMMARY With the identification of different subsets of dendritic cells and the discovery of Toll-like receptors on T regulatory cells and mast cells, the manipulation of Toll-like receptor signaling may lead to novel therapeutic options in allergic diseases.
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Affiliation(s)
- Abdelouahab Bellou
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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24
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Gorski A, Dabrowska K, Switala-Jeleń K, Nowaczyk M, Weber-Dabrowska B, Boratynski J, Wietrzyk J, Opolski A. New insights into the possible role of bacteriophages in host defense and disease. MEDICAL IMMUNOLOGY (LONDON, ENGLAND) 2003; 2:2. [PMID: 12625836 PMCID: PMC151275 DOI: 10.1186/1476-9433-2-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/03/2003] [Accepted: 02/14/2003] [Indexed: 12/30/2022]
Abstract
BACKGROUND: While the ability of bacteriophages to kill bacteria is well known and has been used in some centers to combat antibiotics - resistant infections, our knowledge about phage interactions with mammalian cells is very limited and phages have been believed to have no intrinsic tropism for those cells. PRESENTATION OF THE HYPOTHESIS: At least some phages (e.g., T4 coliphage) express Lys-Arg-Gly (KGD) sequence which binds beta3 integrins (primarily alphaIIbbeta3). Therefore, phages could bind beta3+ cells (platelets, monocytes, some lymphocytes and some neoplastic cells) and downregulate activities of those cells by inhibiting integrin functions. TESTING THE HYPOTHESIS: Binding of KGD+ phages to beta3 integrin+ cells may be detected using standard techniques involving phage - mediated bacterial lysis and plaque formation. Furthermore, the binding may be visualized by electron microscopy and fluorescence using labelled phages. Binding specificity can be confirmed with the aid of specific blocking peptides and monoclonal antibodies. In vivo effects of phage - cell interactions may be assessed by examining the possible biological effects of beta3 blockade (e.g., anti-metastatic activity). IMPLICATION OF THE HYPOTHESIS: If, indeed, phages can modify functions of beta3+ cells (platelets, monocytes, lymphocytes, cancer cells) they could be important biological response modifiers regulating migration and activities of those cells. Such novel understanding of their role could open novel perspectives in their potential use in treatment of cardiovascular and autoimmune disease, graft rejection and cancer.
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Affiliation(s)
- Andrzej Gorski
- L.Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
- Transplantation Institute, The Medical Academy of Warsaw, 02-006 Warsaw, Poland
| | - Krystyna Dabrowska
- L.Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Kinga Switala-Jeleń
- L.Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Maria Nowaczyk
- Transplantation Institute, The Medical Academy of Warsaw, 02-006 Warsaw, Poland
| | - Beata Weber-Dabrowska
- L.Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Janusz Boratynski
- L.Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Joanna Wietrzyk
- L.Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
| | - Adam Opolski
- L.Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland
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25
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Haas D, Keel C. Regulation of antibiotic production in root-colonizing Peudomonas spp. and relevance for biological control of plant disease. ANNUAL REVIEW OF PHYTOPATHOLOGY 2003; 41:117-53. [PMID: 12730389 DOI: 10.1146/annurev.phyto.41.052002.095656] [Citation(s) in RCA: 371] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Certain strains of fluorescent pseudomonads are important biological components of agricultural soils that are suppressive to diseases caused by pathogenic fungi on crop plants. The biocontrol abilities of such strains depend essentially on aggressive root colonization, induction of systemic resistance in the plant, and the production of diffusible or volatile antifungal antibiotics. Evidence that these compounds are produced in situ is based on their chemical extraction from the rhizosphere and on the expression of antibiotic biosynthetic genes in the producer strains colonizing plant roots. Well-characterized antibiotics with biocontrol properties include phenazines, 2,4-diacetylphloroglucinol, pyoluteorin, pyrrolnitrin, lipopeptides, and hydrogen cyanide. In vitro, optimal production of these compounds occurs at high cell densities and during conditions of restricted growth, involving (i) a number of transcriptional regulators, which are mostly pathway-specific, and (ii) the GacS/GacA two-component system, which globally exerts a positive effect on the production of extracellular metabolites at a posttranscriptional level. Small untranslated RNAs have important roles in the GacS/GacA signal transduction pathway. One challenge in future biocontrol research involves development of new strategies to overcome the broad toxicity and lack of antifungal specificity displayed by most biocontrol antibiotics studied so far.
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Affiliation(s)
- Dieter Haas
- Institut de Microbiologie Fondamentale, Universite de Lausanne, CH-1015 Lausanne, Switzerland;
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