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Rather IA, Kamli MR, Sabir JSM, Paray BA. Potential Antiviral Activity of Lactiplantibacillus plantarum KAU007 against Influenza Virus H1N1. Vaccines (Basel) 2022; 10:vaccines10030456. [PMID: 35335088 PMCID: PMC8954428 DOI: 10.3390/vaccines10030456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022] Open
Abstract
The development of antiviral resistance has exacerbated a growing threat to public health. As a result, there is increasing demand for unconventional antivirals that can effectively replace the presently in-use drugs. Lactic acid-producing bacteria (LAB) are among the most common bacteria used in the food industry. These bacteria play an essential role in the fermentation of many foods and feed. Additionally, these bacteria are considered more economical, efficient, and safe “nutraceuticals” in the health care arsenal. Therefore, we carried out the screening and molecular characterization of raw camel milk LAB isolates and tested their inhibitory activity against influenza virus H1N1. The strain that exhibited the highest antiviral activity against the H1N1 virus, confirmed by hemagglutination assay, was identified as Lactiplantibacillus plantarum KAU007. The study also confirmed the non-cytotoxic behavior of CFCS isolated from KAU007 against MDCK cells, approving its safety concern against the mammalian cells. Besides, CFCS at 5 and 10 mg/mL significantly decreased the level of IFN-γ (p < 0.001 and p < 0.001) and IL-6 (p < 0.001 and p < 0.005) in a dose-dependent manner, respectively. This is a preliminary report about the anti-influenza activity of KAU007 isolated from camel milk. This study reinforces that camel milk contains beneficial LAB isolates with antagonistic properties against the H1N1 influenza virus.
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Affiliation(s)
- Irfan A. Rather
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (M.R.K.); (J.S.M.S.)
- Center of Excellence in Bionanoscience Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Correspondence:
| | - Majid Rasool Kamli
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (M.R.K.); (J.S.M.S.)
- Center of Excellence in Bionanoscience Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Jamal S. M. Sabir
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (M.R.K.); (J.S.M.S.)
- Center of Excellence in Bionanoscience Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Bilal Ahmad Paray
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
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Afchangi A, Latifi T, Jalilvand S, Marashi SM, Shoja Z. Combined use of lactic-acid-producing bacteria as probiotics and rotavirus vaccine candidates expressing virus-specific proteins. Arch Virol 2021; 166:995-1006. [PMID: 33533975 DOI: 10.1007/s00705-021-04964-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/03/2020] [Indexed: 12/24/2022]
Abstract
Due to the lower efficacy of currently approved live attenuated rotavirus (RV) vaccines in developing countries, a new approach to the development of safe mucosally administered live bacterial vectors is being considered, using probiotic bacteria as an efficient delivery platform for heterologous RV antigens. Lactic acid bacteria (LAB), which are considered food-grade bacteria and normal microbiota, have been utilized throughout history as probiotics and developed since the 1990s as a delivery system for recombinant heterologous proteins. Over the last decade, LAB have frequently been used as a platform for the delivery of various RV antigens to the mucosa. Given the appropriate safety profile for neonates and providing the benefits of probiotics, recombinant LAB-based vaccines could potentially address the need for a subunit RV vaccine. The present review focuses mainly on different recombinant LAB vaccine constructs for RV and their potential as an alternative recombinant vaccine against RV disease.
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Affiliation(s)
- Atefeh Afchangi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Tayebeh Latifi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Somayeh Jalilvand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zabihollah Shoja
- Department of Molecular Virology, Pasteur Institute of Iran, Tehran, Iran.
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Tavares LM, de Jesus LCL, da Silva TF, Barroso FAL, Batista VL, Coelho-Rocha ND, Azevedo V, Drumond MM, Mancha-Agresti P. Novel Strategies for Efficient Production and Delivery of Live Biotherapeutics and Biotechnological Uses of Lactococcus lactis: The Lactic Acid Bacterium Model. Front Bioeng Biotechnol 2020; 8:517166. [PMID: 33251190 PMCID: PMC7672206 DOI: 10.3389/fbioe.2020.517166] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 10/09/2020] [Indexed: 12/15/2022] Open
Abstract
Lactic acid bacteria (LAB) are traditionally used in fermentation and food preservation processes and are recognized as safe for consumption. Recently, they have attracted attention due to their health-promoting properties; many species are already widely used as probiotics for treatment or prevention of various medical conditions, including inflammatory bowel diseases, infections, and autoimmune disorders. Some LAB, especially Lactococcus lactis, have been engineered as live vehicles for delivery of DNA vaccines and for production of therapeutic biomolecules. Here, we summarize work on engineering of LAB, with emphasis on the model LAB, L. lactis. We review the various expression systems for the production of heterologous proteins in Lactococcus spp. and its use as a live delivery system of DNA vaccines and for expression of biotherapeutics using the eukaryotic cell machinery. We have included examples of molecules produced by these expression platforms and their application in clinical disorders. We also present the CRISPR-Cas approach as a novel methodology for the development and optimization of food-grade expression of useful substances, and detail methods to improve DNA delivery by LAB to the gastrointestinal tract. Finally, we discuss perspectives for the development of medical applications of recombinant LABs involving animal model studies and human clinical trials, and we touch on the main safety issues that need to be taken into account so that bioengineered versions of these generally recognized as safe organisms will be considered acceptable for medical use.
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Affiliation(s)
- Laísa M Tavares
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Luís C L de Jesus
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Tales F da Silva
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda A L Barroso
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Viviane L Batista
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Nina D Coelho-Rocha
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Vasco Azevedo
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mariana M Drumond
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Departamento de Ciências Biológicas, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, Brazil
| | - Pamela Mancha-Agresti
- Laboratory of Cellular and Molecular Genetics, Federal University of Minas Gerais, Belo Horizonte, Brazil.,FAMINAS - BH, Belo Horizonte, Brazil
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del Rio B, Redruello B, Fernandez M, Martin MC, Ladero V, Alvarez MA. Lactic Acid Bacteria as a Live Delivery System for the in situ Production of Nanobodies in the Human Gastrointestinal Tract. Front Microbiol 2019. [PMCID: PMC6346216 DOI: 10.3389/fmicb.2018.03179] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Jung YJ, Lee YT, Ngo VL, Cho YH, Ko EJ, Hong SM, Kim KH, Jang JH, Oh JS, Park MK, Kim CH, Sun J, Kang SM. Heat-killed Lactobacillus casei confers broad protection against influenza A virus primary infection and develops heterosubtypic immunity against future secondary infection. Sci Rep 2017; 7:17360. [PMID: 29234060 PMCID: PMC5727132 DOI: 10.1038/s41598-017-17487-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 11/23/2017] [Indexed: 02/08/2023] Open
Abstract
Lactic acid bacteria (LAB) are the common probiotics. Here, we investigated the antiviral protective effects of heat-killed LAB strain Lactobacillus casei DK128 (DK128) on influenza viruses. Intranasal treatment of mice with DK128 conferred protection against different subtypes of influenza viruses by lessening weight loss and lowering viral loads. Protection via heat-killed DK128 was correlated with an increase in alveolar macrophage cells in the lungs and airways, early induction of virus specific antibodies, reduced levels of pro-inflammatory cytokines and innate immune cells. Importantly, the mice that were protected against primary viral infection as a result of heat-killed DK128 pretreatment developed subsequent heterosubtypic immunity against secondary virus infection. For protection against influenza virus via heat-killed DK128 pretreatment, B cells and partially CD4 T cells but not CD8 T cells were required as inferred from studies using knockout mouse models. Our study provides insight into how hosts can be equipped with innate and adaptive immunity via heat-killed DK128 treatment to protect against influenza virus, supporting that heat-killed LAB may be developed as anti-virus probiotics.
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Affiliation(s)
- Yu-Jin Jung
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Young-Tae Lee
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Vu Le Ngo
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Young-Hee Cho
- Department of Animal Resource Science, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 330-714, Korea
| | - Eun-Ju Ko
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Sung-Moon Hong
- Department of Animal Resource Science, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 330-714, Korea
| | - Ki-Hye Kim
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA
| | - Ji-Hun Jang
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, 331-858, Korea
| | - Joon-Suk Oh
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, 331-858, Korea
| | - Min-Kyung Park
- Department of Human Nutrition and Food Science, Chungwoon University, Namjang-Ri, Hongsung-Eup, Hongsung-Kun, Chungnam, 350-701, Korea
| | - Cheol-Hyun Kim
- Department of Animal Resource Science, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, 330-714, Korea
| | - Jun Sun
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, USA
| | - Sang-Moo Kang
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, 30303, USA.
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Raftari M, Ghafourian S, Abu Bakar F. Simultaneous lactic acidification and coagulation by using recombinant Lactococcus lactis strain. J Appl Microbiol 2016; 122:1009-1019. [PMID: 28028882 DOI: 10.1111/jam.13388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 11/16/2016] [Accepted: 12/10/2016] [Indexed: 11/30/2022]
Abstract
AIMS This study was an attempt to create a novel milk clotting procedure using a recombinant bacterium capable of milk coagulation. METHODS AND RESULTS The Rhizomucor pusillus proteinase (RPP) gene was sub-cloned into a pALF expression vector. The recombinant pALF-RPP vector was then electro-transferred into Lactococcus lactis. Finally, the milk coagulation ability of recombinant L. lactis carrying a RPP gene was evaluated. Nucleotide sequencing of DNA insertion from the clone revealed that the RPP activity corresponded to an open reading frame consisting of 1218 bp coding for a 43·45 kDa RPP protein. The RPP protein assay results indicated that the highest RPP enzyme expression with 870 Soxhlet units (SU) per ml and 7914 SU/OD were obtained for cultures which were incubated at pH 5·5 and 30°C. Interestingly, milk coagulation was observed after 205 min of inoculating milk with recombinant L. lactis carrying the RPP gene. CONCLUSION The recombinant L. lactis carrying RPP gene has the ability to function as a starter culture for acidifying and subsequently coagulating milk by producing RPP as a milk coagulant agent. SIGNIFICANCE AND IMPACT OF THE STUDY Creating a recombinant starter culture bacterium that is able to coagulate milk. It is significant because the recombinant L. lactis has the ability to work as a starter culture and milk coagulation agent.
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Affiliation(s)
- M Raftari
- Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - S Ghafourian
- Clinical Microbiology Research Center, Ilam University of Medical Sciences, Ilam, Iran.,Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - F Abu Bakar
- Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Sasikumar P, Paul E, Gomathi S, Abhishek A, Sasikumar S, Selvam GS. Mobile group II intron based gene targeting in Lactobacillus plantarum WCFS1. J Basic Microbiol 2016; 56:1107-1116. [PMID: 27119622 DOI: 10.1002/jobm.201500746] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 04/11/2016] [Indexed: 11/09/2022]
Abstract
The usage of recombinant lactic acid bacteria for delivery of therapeutic proteins to the mucosa has been emerging. In the present study, an attempt was made to engineer a thyA mutant of Lactobacillus plantarum (L. plantarum) using lactococcal group II intron Ll.LtrB for the development of biologically contained recombinant L. plantarum for prevention of calcium oxalate stone disease. The 3 kb Ll.LtrB intron donor cassettes from the source vector pACD4C was PCR amplified, ligated into pSIP series of lactobacillus vector pLp_3050sAmyA, yielding a novel vector pLpACD4C (8.6 kb). The quantitative real-time PCR experiment shows 94-fold increased expression of Ll.LtrB intron and 14-fold increased expression of ltrA gene in recombinant L. plantarum containing pLpACD4C. In order to target the thyA gene, the potential intron RNA binding sites in the thyA gene of L. plantarum was predicted with help of computer algorithm. The insertion location 188|189s of thyA gene (lowest E-0.134) was chosen and the wild type intron Ll.LtrB was PCR modified, yielding a retargeted intron of pLpACDthyA. The retargeted intron was expressed by using induction peptide (sppIP), subsequently the integration of intron in thyA gene was identified by PCR screening and finally ThyA- mutant of L. plantarum (ThyA18) was detected. In vitro growth curve result showed that in the absence of thymidine, colony forming units of mutant ThyA18 was decreased, whereas high thymidine concentration (10 μM) supported the growth of the culture until saturation. In conclusion, ThyA- mutant of L. plantarum (ThyA18) constructed in this study will be used as a biologically contained recombinant probiotic to deliver oxalate decarboxylase into the lumen for treatment of hyperoxaluria and calcium oxalate stone deposition.
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Affiliation(s)
- Ponnusamy Sasikumar
- Department of Biochemistry, Centre for Advanced Studies in Functional Genomics, School of Biological Sciences, Madurai Kamaraj University, Madurai, 625 021, India
| | - Eldho Paul
- Department of Biochemistry, Centre for Advanced Studies in Functional Genomics, School of Biological Sciences, Madurai Kamaraj University, Madurai, 625 021, India
| | - Sivasamy Gomathi
- Department of Biochemistry, Centre for Advanced Studies in Functional Genomics, School of Biological Sciences, Madurai Kamaraj University, Madurai, 625 021, India
| | - Albert Abhishek
- Department of Biochemistry, Centre for Advanced Studies in Functional Genomics, School of Biological Sciences, Madurai Kamaraj University, Madurai, 625 021, India
| | - Sundaresan Sasikumar
- Department of Biochemistry, Centre for Advanced Studies in Functional Genomics, School of Biological Sciences, Madurai Kamaraj University, Madurai, 625 021, India
| | - Govindan Sadasivam Selvam
- Department of Biochemistry, Centre for Advanced Studies in Functional Genomics, School of Biological Sciences, Madurai Kamaraj University, Madurai, 625 021, India.
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Oral immunization with recombinant Lactobacillus acidophilus expressing the adhesin Hp0410 of Helicobacter pylori induces mucosal and systemic immune responses. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2013; 21:126-32. [PMID: 24285819 DOI: 10.1128/cvi.00434-13] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Helicobacter pylori infection is relatively common worldwide and is closely related to gastric mucosa-associated lymphoid tissue (MALT) lymphoma, chronic gastritis, and stomach ulcers. Therefore, a safe and effective method for preventing H. pylori infection is urgently needed. Given that developing an effective vaccine against H. pylori is one of the best alternatives, H. pylori adhesin Hp0410 was expressed in the food-grade bacterium Lactobacillus acidophilus. The recombinant live bacterial vaccine was then used to orally vaccinate mice, and the immunoprotective effects of Hp0410-producing strains were investigated. H. pylori colonization in the stomach of mice immunized with the recombinant L. acidophilus was significantly reduced, in comparison with that in control groups. Furthermore, mucosal secretory IgA antibodies were elicited in the mucosal tissue of mice immunized with the recombinant bacteria, and specific anti-Hp0410 IgG responses were also detected in mouse serum. There was a significant increase in the level of protection against gastric Helicobacter infection following a challenge with H. pylori Sydney strain 1 (SS1). Our results collectively indicate that adhesin Hp0410 is a promising candidate vaccine antigen, and recombinant L. acidophilus expressing Hp0410 is likely to constitute an effective, low-cost, live bacterial vaccine against H. pylori.
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Park MK, NGO V, Kwon YM, Lee YT, Yoo S, Cho YH, Hong SM, Hwang HS, Ko EJ, Jung YJ, Moon DW, Jeong EJ, Kim MC, Lee YN, Jang JH, Oh JS, Kim CH, Kang SM. Lactobacillus plantarum DK119 as a probiotic confers protection against influenza virus by modulating innate immunity. PLoS One 2013; 8:e75368. [PMID: 24124485 PMCID: PMC3790790 DOI: 10.1371/journal.pone.0075368] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 08/12/2013] [Indexed: 02/02/2023] Open
Abstract
Lactobacillus plantarum DK119 (DK119) isolated from the fermented Korean cabbage food was used as a probiotic to determine its antiviral effects on influenza virus. DK119 intranasal or oral administration conferred 100% protection against subsequent lethal infection with influenza A viruses, prevented significant weight loss, and lowered lung viral loads in a mouse model. The antiviral protective efficacy was observed in a dose and route dependent manner of DK119 administration. Mice that were treated with DK119 showed high levels of cytokines IL-12 and IFN-γ in bronchoalveolar lavage fluids, and a low degree of inflammation upon infection with influenza virus. Depletion of alveolar macrophage cells in lungs and bronchoalveolar lavages completely abrogated the DK119-mediated protection. Modulating host innate immunity of dendritic and macrophage cells, and cytokine production pattern appeared to be possible mechanisms by which DK119 exhibited antiviral effects on influenza virus infection. These results indicate that DK119 can be developed as a beneficial antiviral probiotic microorganism.
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Affiliation(s)
- Min-Kyung Park
- Department of Human Nutrition and Food Science, Chungwoon University, Namjang-Ri, Hongsung-Eup, Hongsung-Kun, Chungnam, Korea
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Vu NGO
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Young-Man Kwon
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Young-Tae Lee
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Sieun Yoo
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Young-Hee Cho
- Department of Animal Resource Science, Dankook University, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, Korea
| | - Sung-Moon Hong
- Department of Animal Resource Science, Dankook University, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, Korea
| | - Hye Suk Hwang
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Eun-Ju Ko
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Yu-Jin Jung
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Dae-Won Moon
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, Korea
| | - Eun-Ji Jeong
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, Korea
| | - Min-Chul Kim
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Yu-Na Lee
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Ji-Hun Jang
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, Korea
| | - Joon-Suk Oh
- Tobico Inc. Chungnam Techno Park, Jiksan-Eup, Seobuk-Gu, Cheonan-Si, Chungnam, Korea
| | - Cheol-Hyun Kim
- Department of Animal Resource Science, Dankook University, Dandae-ro, Dongnam-gu, Cheonan-si, Chungnam, Korea
| | - Sang-Moo Kang
- Center for Inflammation, Immunity & Infection, and Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
- * E-mail:
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Metabolic engineering of Lactococcus lactis influence of the overproduction of lipase enzyme. J DAIRY RES 2013; 80:490-5. [PMID: 24063299 DOI: 10.1017/s0022029913000435] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The dairy industry uses lipase extensively for hydrolysis of milk fat. Lipase is used in the modification of the fatty acid chain length, to enhance the flavours of various chesses. Therefore finding the unlimited source of lipase is a concern of dairy industry. Due to the importance of lipase, this study was an attempt to express the lipase from Burkholderia cepacia in Lactococcus lactis. To achieve this, a gene associated with lipase transport was amplified and subcloned in inducible pNZ8148 vector, and subsequently transformed into Lc. lactis NZ9000. The enzyme assay as well as SDS-PAGE and western blotting were carried out to analysis the recombinant lipase expression. Nucleotide sequencing of the DNA insert from the clone revealed that the lipase activity corresponded to an open reading frame consisting of 1092 bp coding for a 37·5-kDa size protein. Blue colour colonies on nile blue sulphate agar and sharp band on 37·5-kD size on SDS-PAGE and western blotting results confirm the successful expression of lipase by Lc. lactis. The protein assay also showed high expression, approximately 152·2 μg/ml.h, of lipase by recombinant Lc. lactis. The results indicate that Lc. lactis has high potential to overproduce the recombinant lipase which can be used commercially for industrially purposes.
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11
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Anbazhagan K, Sasikumar P, Gomathi S, Priya HP, Selvam GS. In vitro degradation of oxalate by recombinant Lactobacillus plantarum expressing heterologous oxalate decarboxylase. J Appl Microbiol 2013; 115:880-7. [PMID: 23734819 DOI: 10.1111/jam.12269] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 05/29/2013] [Accepted: 05/29/2013] [Indexed: 01/24/2023]
Abstract
AIM The aim of the present study is to constitutively express heterologous oxalate decarboxylase (OxdC) in Lactobacillus plantarum and to examine its ability to degrade oxalate in vitro for their future therapy against enteric hyperoxaluria. METHOD AND RESULTS In this study, we generated a recombinant strain of Lb. plantarum to constitutively overexpress B. subtilis oxalate decarboxylase (oxdC) using a host lactate dehydrogenase promoter (PldhL ). The recombinant Lb. plantarum was able to degrade more than 90% oxalate compared to 15% by the wild type. In addition, the recombinant strain also had higher tolerance up to 500 mmol l(-1) oxalate. CONCLUSION We developed a recombinant Lb. plantarum NC8 that constitutively expressed heterologous oxalate decarboxylase and degraded oxalate efficiently under in vitro conditions. SIGNIFICANCE AND IMPACT OF STUDY The long-term aim is to develop an efficient strain for future therapy against oxalosis.
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Affiliation(s)
- K Anbazhagan
- Department of Biochemistry, Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
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12
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Repetitive, marker-free, site-specific integration as a novel tool for multiple chromosomal integration of DNA. Appl Environ Microbiol 2013; 79:3563-9. [PMID: 23542630 DOI: 10.1128/aem.00346-13] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We present a tool for repetitive, marker-free, site-specific integration in Lactococcus lactis, in which a nonreplicating plasmid vector (pKV6) carrying a phage attachment site (attP) can be integrated into a bacterial attachment site (attB). The novelty of the tool described here is the inclusion of a minimal bacterial attachment site (attB(min)), two mutated loxP sequences (lox66 and lox71) allowing for removal of undesirable vector elements (antibiotic resistance marker), and a counterselection marker (oroP) for selection of loxP recombination on the pKV6 vector. When transformed into L. lactis expressing the phage TP901-1 integrase, pKV6 integrates with high frequency into the chromosome, where it is flanked by attL and attR hybrid attachment sites. After expression of Cre recombinase from a plasmid that is not able to replicate in L. lactis, loxP recombinants can be selected for by using 5-fluoroorotic acid. The introduced attB(min) site can subsequently be used for a second round of integration. To examine if attP recombination was specific to the attB site, integration was performed in strains containing the attB, attL, and attR sites or the attL and attR sites only. Only attP-attB recombination was observed when all three sites were present. In the absence of the attB site, a low frequency of attP-attL recombination was observed. To demonstrate the functionality of the system, the xylose utilization genes (xylABR and xylT) from L. lactis strain KF147 were integrated into the chromosome of L. lactis strain MG1363 in two steps.
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13
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Caselli M, Cassol F, Calò G, Holton J, Zuliani G, Gasbarrini A. Actual concept of "probiotics": Is it more functional to science or business? World J Gastroenterol 2013; 19:1527-1540. [PMID: 23539674 PMCID: PMC3602470 DOI: 10.3748/wjg.v19.i10.1527] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 12/18/2012] [Accepted: 01/13/2013] [Indexed: 02/06/2023] Open
Abstract
It is our contention that the concept of a probiotic as a living bacterium providing unspecified health benefits is inhibiting the development and establishment of an evidence base for the growing field of pharmacobiotics. We believe this is due in part to the current regulatory framework, lack of a clear definition of a probiotic, the ease with which currently defined probiotics can be positioned in the market place, and the enormous profits earned for minimum investment in research. To avoid this, we believe the following two actions are mandatory: international guidelines by a forum of stakeholders made available to scientists and clinicians, patient organizations, and governments; public research funds made available to the scientific community for performing independent rigorous studies both at the preclinical and clinical levels.
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14
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Zakostelska Z, Kverka M, Klimesova K, Rossmann P, Mrazek J, Kopecny J, Hornova M, Srutkova D, Hudcovic T, Ridl J, Tlaskalova-Hogenova H. Lysate of probiotic Lactobacillus casei DN-114 001 ameliorates colitis by strengthening the gut barrier function and changing the gut microenvironment. PLoS One 2011; 6:e27961. [PMID: 22132181 PMCID: PMC3222668 DOI: 10.1371/journal.pone.0027961] [Citation(s) in RCA: 153] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 10/28/2011] [Indexed: 12/12/2022] Open
Abstract
Background Probiotic bacteria can be used for the prevention and treatment of human inflammatory diseases including inflammatory bowel diseases (IBD). However, the nature of active components and exact mechanisms of this beneficial effects have not been fully elucidated. Our aim was to investigate if lysate of probiotic bacterium L. casei DN-114 001 (Lc) could decrease the severity of intestinal inflammation in a murine model of IBD. Methodology/Principal Findings The preventive effect of oral administration of Lc significantly reduces the severity of acute dextran sulfate sodium (DSS) colitis in BALB/c but not in SCID mice. In order to analyze how this beneficial effect interferes with well-known phases of intestinal inflammation pathogenesis in vivo and in vitro, we evaluated intestinal permeability using the FITC-labeled dextran method and analysed tight junction proteins expression by immunofluorescence and PCR. We also measured CD4+FoxP3+ regulatory T cells proportion by FACS analysis, microbiota composition by pyrosequencing, and local cytokine production by ELISA. Lc leads to a significant protection against increased intestinal permeability and barrier dysfunction shown by preserved ZO-1 expression. We found that the Lc treatment increases the numbers of CD4+FoxP3+ regulatory T cells in mesenteric lymph nodes (MLN), decreases production of pro-inflammatory cytokines TNF-α and IFN-γ, and anti-inflammatory IL-10 in Peyer's patches and large intestine, and changes the gut microbiota composition. Moreover, Lc treatment prevents lipopolysaccharide-induced TNF-α expression in RAW 264.7 cell line by down-regulating the NF-κB signaling pathway. Conclusion/Significance Our study provided evidence that even non-living probiotic bacteria can prevent the development of severe forms of intestinal inflammation by strengthening the integrity of intestinal barrier and modulation of gut microenvironment.
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Affiliation(s)
- Zuzana Zakostelska
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Miloslav Kverka
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
- * E-mail:
| | - Klara Klimesova
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Pavel Rossmann
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Jakub Mrazek
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Jan Kopecny
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Michaela Hornova
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Dagmar Srutkova
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Novy Hradek, Czech Republic
| | - Tomas Hudcovic
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Novy Hradek, Czech Republic
| | - Jakub Ridl
- Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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15
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Lee P. Biocontainment strategies for live lactic acid bacteria vaccine vectors. Bioeng Bugs 2011; 1:75-7. [PMID: 21327129 DOI: 10.4161/bbug.1.1.10594] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Accepted: 11/11/2009] [Indexed: 11/19/2022] Open
Abstract
Stability is an important issue when engineering bacteria for use as live vaccine vectors. For the majority of live bacterial vaccines, the antigen-encoding gene is either plasmid located or integrated into the chromosome. Regardless, several safety concerns can be raised for both instances. One concern when using plasmid-encoded antigens is the transfer of antibiotic resistance markers. Alternatively, for chromosomal integrated antigens however, the concern focuses on the spread and possible release of genetically-modified microorganisms (GMM) into the environment, which is problematic. Their recombinant nature calls for a proper bio-containment strategy to be implemented or in place before any realistic attempt at releasing a live bacterial vaccine. No examples of human bacterial vaccines causing problems among animals have been found in the literature but the possibility exists and has to be both tested and evaluated before release of a live bacterial vaccine. The ideal GMM for use in humans should therefore contain the minimal amount of foreign DNA and must not include an antibiotic resistance marker. Furthermore, the possibilities of transgene horizontal transfer must be minimized, and GMM lethality for biocontainment should be achieved in an unconfined environment.
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Affiliation(s)
- Peter Lee
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan.
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16
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Mayo B, van Sinderen D, Ventura M. Genome analysis of food grade lactic Acid-producing bacteria: from basics to applications. Curr Genomics 2011; 9:169-83. [PMID: 19440514 PMCID: PMC2679651 DOI: 10.2174/138920208784340731] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 03/24/2008] [Accepted: 03/26/2008] [Indexed: 12/27/2022] Open
Abstract
Whole-genome sequencing has revolutionized and accelerated scientific research that aims to study the genetics, biochemistry and molecular biology of bacteria. Lactic acid-producing bacteria, which include lactic acid bacteria (LAB) and bifidobacteria, are typically Gram-positive, catalase-negative organisms, which occupy a wide range of natural plant- and animal-associated environments. LAB species are frequently involved in the transformation of perishable raw materials into more stable, pleasant, palatable and safe fermented food products. LAB and bifidobacteria are also found among the resident microbiota of the gastrointestinal and/or genitourinary tracts of vertebrates, where they are believed to exert health-promoting effects. At present, the genomes of more than 20 LAB and bifidobacterial species have been completely sequenced. Their genome content reflects its specific metabolism, physiology, biosynthetic capabilities, and adaptability to varying conditions and environments. The typical LAB/bifidobacterial genome is relatively small (from 1.7 to 3.3 Mb) and thus harbors a limited assortment of genes (from around 1,600 to over 3,000). These small genomes code for a broad array of transporters for efficient carbon and nitrogen assimilation from the nutritionally-rich niches they usually inhabit, and specify a rather limited range of biosynthetic and degrading capabilities. The variation in the number of genes suggests that the genome evolution of each of these bacterial groups involved the processes of extensive gene loss from their particular ancestor, diversification of certain common biological activities through gene duplication, and acquisition of key functions via horizontal gene transfer. The availability of genome sequences is expected to revolutionize the exploitation of the metabolic potential of LAB and bifidobacteria, improving their use in bioprocessing and their utilization in biotechnological and health-related applications.
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Affiliation(s)
- B Mayo
- Departamento de Microbiología y Bioquímica, Instituto de Productos Lácteos de Asturias (CSIC), 33300-Villaviciosa, Asturias, Spain
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Rupa P, Schmied J, Wilkie B. Prophylaxis of experimentally induced ovomucoid allergy in neonatal pigs using Lactococcus lactis. Vet Immunol Immunopathol 2011; 140:23-9. [DOI: 10.1016/j.vetimm.2010.11.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 10/18/2010] [Accepted: 11/05/2010] [Indexed: 01/12/2023]
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18
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Tlaskalová-Hogenová H, Stěpánková R, Kozáková H, Hudcovic T, Vannucci L, Tučková L, Rossmann P, Hrnčíř T, Kverka M, Zákostelská Z, Klimešová K, Přibylová J, Bártová J, Sanchez D, Fundová P, Borovská D, Srůtková D, Zídek Z, Schwarzer M, Drastich P, Funda DP. The role of gut microbiota (commensal bacteria) and the mucosal barrier in the pathogenesis of inflammatory and autoimmune diseases and cancer: contribution of germ-free and gnotobiotic animal models of human diseases. Cell Mol Immunol 2011; 8:110-20. [PMID: 21278760 PMCID: PMC4003137 DOI: 10.1038/cmi.2010.67] [Citation(s) in RCA: 477] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Accepted: 12/02/2010] [Indexed: 02/06/2023] Open
Abstract
Metagenomic approaches are currently being used to decipher the genome of the microbiota (microbiome), and, in parallel, functional studies are being performed to analyze the effects of the microbiota on the host. Gnotobiological methods are an indispensable tool for studying the consequences of bacterial colonization. Animals used as models of human diseases can be maintained in sterile conditions (isolators used for germ-free rearing) and specifically colonized with defined microbes (including non-cultivable commensal bacteria). The effects of the germ-free state or the effects of colonization on disease initiation and maintenance can be observed in these models. Using this approach we demonstrated direct involvement of components of the microbiota in chronic intestinal inflammation and development of colonic neoplasia (i.e., using models of human inflammatory bowel disease and colorectal carcinoma). In contrast, a protective effect of microbiota colonization was demonstrated for the development of autoimmune diabetes in non-obese diabetic (NOD) mice. Interestingly, the development of atherosclerosis in germ-free apolipoprotein E (ApoE)-deficient mice fed by a standard low-cholesterol diet is accelerated compared with conventionally reared animals. Mucosal induction of tolerance to allergen Bet v1 was not influenced by the presence or absence of microbiota. Identification of components of the microbiota and elucidation of the molecular mechanisms of their action in inducing pathological changes or exerting beneficial, disease-protective activities could aid in our ability to influence the composition of the microbiota and to find bacterial strains and components (e.g., probiotics and prebiotics) whose administration may aid in disease prevention and treatment.
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Integrative expression system for delivery of antibody fragments by lactobacilli. Appl Environ Microbiol 2011; 77:2174-9. [PMID: 21257814 DOI: 10.1128/aem.02690-10] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A series of expression cassettes which mediate secretion or surface display of antibody fragments was stably integrated in the chromosome of Lactobacillus paracasei. L. paracasei producing surface-anchored variable domain of llama heavy chain (VHH) (ARP1) directed against rotavirus showed efficient binding to rotavirus and protection in the mouse model of rotavirus infection.
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20
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Palomino MM, Allievi MC, Prado-Acosta M, Sanchez-Rivas C, Ruzal SM. New method for electroporation of Lactobacillus species grown in high salt. J Microbiol Methods 2010; 83:164-7. [DOI: 10.1016/j.mimet.2010.08.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 08/16/2010] [Accepted: 08/17/2010] [Indexed: 11/30/2022]
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21
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Lee TY, Kim YH, Lee KS, Kim JK, Lee IH, Yang JM, Sung MH, Park JS, Poo H. Human papillomavirus type 16 E6-specific antitumor immunity is induced by oral administration of HPV16 E6-expressing Lactobacillus casei in C57BL/6 mice. Cancer Immunol Immunother 2010; 59:1727-37. [PMID: 20706715 PMCID: PMC7079958 DOI: 10.1007/s00262-010-0903-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Accepted: 08/02/2010] [Indexed: 02/07/2023]
Abstract
Given that local cell-mediated immunity (CMI) against the human papillomavirus type 16 E6 (HPV16 E6) protein is important for eradication of HPV16 E6-expressing cancer cells in the cervical mucosa, the HPV16 E6 protein may be a target for the mucosal immunotherapy of cervical cancer. Here, we expressed the HPV16 E6 antigen on Lactobacillus casei (L. casei) and investigated E6-specific CMI following oral administration of the L. casei-PgsA-E6 to mice. Surface expression of HPV16 E6 antigens was confirmed and mice were orally inoculated with the L. casei-PgsA or the L. casei-PgsA-E6. Compared to the L. casei-PgsA-treated mice, significantly higher levels of serum IgG and mucosal IgA were observed in L. casei-PgsA-E6-immunized mice; these differences were significantly enhanced after boost. Consistent with this, systemic and local CMI were significantly increased after the boost, as shown by increased counts of IFN-γ-secreting cells in splenocytes, mesenteric lymph nodes (MLN), and vaginal samples. Furthermore, in the TC-1 tumor model, animals receiving the orally administered L. casei-PgsA-E6 showed reduced tumor size and increased survival rate versus mice receiving control (L. casei-PgsA) immunization. We also found that L. casei-PgsA-E6-induced antitumor effect was decreased by in vivo depletion of CD4+ or CD8+ T cells. Collectively, these results indicate that the oral administration of lactobacilli bearing the surface-displayed E6 protein induces T cell-mediated cellular immunity and antitumor effects in mice.
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Affiliation(s)
- Tae-Young Lee
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejon, 305-806 Korea
| | - Yang-Hyun Kim
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejon, 305-806 Korea
| | - Kyung-Soon Lee
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejon, 305-806 Korea
| | - Jeong-Ki Kim
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejon, 305-806 Korea
| | | | - Jai-Myung Yang
- Department of Biological Sciences, Sogang University, Seoul, Korea
| | - Moon-Hee Sung
- Department of Bio and Nanochemistry, Kookmin University, Seoul, Korea
| | - Jong-Sup Park
- Department of Obstetrics and Gynecology, The Catholic University, Seoul, Korea
| | - Haryoung Poo
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejon, 305-806 Korea
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22
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Key roles of dendritic cells in lung infection and improving anthrax vaccines. Trends Mol Med 2010; 16:303-12. [DOI: 10.1016/j.molmed.2010.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Revised: 04/20/2010] [Accepted: 04/22/2010] [Indexed: 12/21/2022]
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23
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Frelet-Barrand A, Boutigny S, Kunji ERS, Rolland N. Membrane protein expression in Lactococcus lactis. Methods Mol Biol 2010; 601:67-85. [PMID: 20099140 DOI: 10.1007/978-1-60761-344-2_5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Membrane proteins play key roles in cellular physiology, and they are important drug targets. Approximately 25% of all genes identified in sequenced genomes are known to encode membrane proteins; however, the majority have no assigned function. Although the resolution of soluble protein structure has entered the high-throughput stage, only 100 high-resolution structures of membrane proteins have been described until now. Lactococcus lactis is a gram-positive lactic bacterium that has been used traditionally in food fermentations, but it is now used widely in biotechnology for large-scale overproduction of heterologously expressed proteins. Various expression vectors based on either constitutive or inducible promoters exist. The nisin-inducible controlled gene expression (NICE) system is the most suitable for recombinant membrane protein expression allowing for fine control of gene expression based on the autoregulation mechanism of the bacteriocin nisin. Recombinant membrane proteins can be produced with affinity tags for efficient detection and purification from crude membrane protein extracts. The purpose of this chapter is to provide a detailed protocol for the expression of membrane proteins and their detection using the Strep-tag II affinity tag in L. lactis.
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Affiliation(s)
- Annie Frelet-Barrand
- Laboratoire de Physiologie Cellulaire Végétale, CNRS (UMR-5168)/CEA/INRA (UMR-1200), Université Joseph Fourier, iRTSV, CEA-Grenoble, France.
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24
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Hazebrouck S, Przybylski-Nicaise L, Ah-Leung S, Adel-Patient K, Corthier G, Langella P, Wal JM. Influence of the route of administration on immunomodulatory properties of bovine β-lactoglobulin-producing Lactobacillus casei. Vaccine 2009; 27:5800-5. [DOI: 10.1016/j.vaccine.2009.07.064] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2008] [Revised: 06/20/2009] [Accepted: 07/19/2009] [Indexed: 12/15/2022]
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25
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Cortes-Perez NG, Kharrat P, Langella P, Bermúdez-Humarán LG. Heterologous production of human papillomavirus type-16 L1 protein by a lactic acid bacterium. BMC Res Notes 2009; 2:167. [PMID: 19703307 PMCID: PMC2742549 DOI: 10.1186/1756-0500-2-167] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Accepted: 08/24/2009] [Indexed: 11/10/2022] Open
Abstract
Background The expression of vaccine antigens in lactic acid bacteria (LAB) is a safe and cost-effective alternative to traditional expression systems. In this study, we investigated i) the expression of Human papillomavirus type 16 (HPV-16) L1 major capsid protein in the model LAB Lactococcus lactis and ii) the ability of the resulting recombinant strain to produce either capsomer-or virus-like particles (VLPs). Results and conclusion HPV-16 L1 gene was cloned into two vectors, pCYT and pSEC, designed for controlled intra- or extracellular heterologous expression in L. lactis, respectively. The capacity of L. lactis harboring either pCYT:L1 or pSEC:L1 plasmid to accumulate L1 in the cytoplasm and supernatant samples was confirmed by Western blot assays. Electron microscopy analysis suggests that, L1 protein produced by recombinant lactococci can self-assemble into structures morphologically similar to VLPs intracellularly. The presence of conformational epitopes on the L. lactis-derived VLPs was confirmed by ELISA using an anti-HPV16 L1 capsid antigen antibody. Our results support the feasibility of using recombinant food-grade LAB, such as L. lactis, for the production of L1-based VLPs and open the possibility for the development of a new safe mucosal vector for HPV-16 prophylactic vaccination.
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Affiliation(s)
- Naima G Cortes-Perez
- Equipe Interactions des bactéries commensales et probiotiques avec l'hôte, Unité d'Ecologie et physiologie du Système Digestif, Institut National de la Recherche Agronomique, 78352 Jouy-en-Josas, France.
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26
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Jagusztyn-Krynicka EK, Łaniewski P, Wyszyńska A. Update on Campylobacter jejuni vaccine development for preventing human campylobacteriosis. Expert Rev Vaccines 2009; 8:625-45. [PMID: 19397419 DOI: 10.1586/erv.09.21] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Campylobacteriosis constitutes a serious medical and socioeconomic problem worldwide. Rapidly increasing antibiotic resistance of bacterial strains compels us to develop alternative therapeutic strategies and to search for efficient immunoprophylactic methods. The vast majority of Campylobacter infections in developed countries occur as sporadic cases, mainly caused by eating undercooked Campylobacter-contaminated poultry. The most efficient strategy of decreasing the number of human Campylobacter infections is by implementing protective vaccinations for humans and/or chickens. Despite more than 10 years of research, an effective anti-Campylobacter vaccine has not been developed. This review highlights our increasing knowledge of Campylobacter interaction with host cells and focuses on recently published data describing the efficacy of anti-Campylobacter vaccine prototypes.
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Oddone GM, Mills DA, Block DE. Incorporation of nisI-mediated nisin immunity improves vector-based nisin-controlled gene expression in lactic acid bacteria. Plasmid 2009; 61:151-8. [DOI: 10.1016/j.plasmid.2008.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 12/17/2008] [Accepted: 12/17/2008] [Indexed: 10/21/2022]
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28
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Guimarães V, Innocentin S, Chatel JM, Lefèvre F, Langella P, Azevedo V, Miyoshi A. A new plasmid vector for DNA delivery using lactococci. GENETIC VACCINES AND THERAPY 2009; 7:4. [PMID: 19208231 PMCID: PMC2646724 DOI: 10.1186/1479-0556-7-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2008] [Accepted: 02/10/2009] [Indexed: 11/10/2022]
Abstract
BACKGROUND The use of food-grade lactococci as bacterial carriers to DNA delivery into epithelial cells is a new strategy to develop live oral DNA vaccine. Our goal was to develop a new plasmid, named pValac, for antigen delivery for use in lactococci. The pValac plasmid was constructed by the fusion of: i) a eukaryotic region, allowing the cloning of an antigen of interest under the control of the pCMV eukaryotic promoter to be expressed by a host cell and ii) a prokaryotic region allowing replication and selection of bacteria. In order to evaluate pValac functionality, the gfp ORF was cloned into pValac (pValac:gfp) and was analysed by transfection in PK15 cells. The applicability of pValac was demonstrated by invasiveness assays of Lactococcus lactis inlA+ strains harbouring pValac:gfp into Caco-2 cells. RESULTS After transfection with pValac:gfp, we observed GFP expression in PK15 cells. L. lactis inlA+ were able to invade Caco-2 cells and delivered a functional expression cassette (pCMV:gfp) into epithelial cells. CONCLUSION We showed the potential of an invasive L. lactis harbouring pValac to DNA delivery and subsequent triggering DNA expression by epithelial cells. Further work will be to examine whether these strains are able to deliver DNA in intestinal cells in vivo.
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Affiliation(s)
- Valeria Guimarães
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (ICB-UFMG), Belo Horizonte - MG, Brasil.
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Kolandaswamy A, George L, Sadasivam S. Heterologous expression of oxalate decarboxylase in Lactobacillus plantarum NC8. Curr Microbiol 2008; 58:117-21. [PMID: 18946701 DOI: 10.1007/s00284-008-9286-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Accepted: 09/12/2008] [Indexed: 12/01/2022]
Abstract
Lactic acid bacteria (LABs) are being used as a probiotic very often for various enteric problems. Many genetically modified LABs are created by different workers for various novel applications. In this study we examine the expression of heterologous oxalate decarboxylase (oxdc) in Lactobacillus plantarum NC8. Generally, this enzyme is not present in Lactobacillus spp. Oxdc gene from Bacillus subtilis was polymerase chain reaction-amplified and cloned in a shuttle vector pSIP400 series, downstream of the inducible promoter, P(orfx). In the presence of an inducing peptide, Sakacin-P, the expression of OxdC was observed in sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The cell-free extract and the purified protein from the recombinant LABs showed the presence of OxdC activity. The above recombinant LABs, with desired modifications, can be used as a possible probiotic for the degradation of intestinal dietary oxalate for preventing enteric hyperoxaluria.
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Affiliation(s)
- Anbazhagan Kolandaswamy
- Department of Biochemistry, School of Biological Sciences, Madurai Kamaraj University, Madurai, TN, India.
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Cortes-Perez NG, da Costa Medina LF, Lefèvre F, Langella P, Bermúdez-Humarán LG. Production of biologically active CXC chemokines by Lactococcus lactis: evaluation of its potential as a novel mucosal vaccine adjuvant. Vaccine 2008; 26:5778-83. [PMID: 18790708 DOI: 10.1016/j.vaccine.2008.08.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2008] [Revised: 08/18/2008] [Accepted: 08/19/2008] [Indexed: 11/28/2022]
Abstract
Chemokines have been described as essential mediators in leukocytes migration to inflammatory sites and to secondary lymphoid organs. Mig and IP-10 are two CXC chemokines that recruit mononuclear cells in vivo and inhibit angiogenesis. In addition to their chemotactic roles, Mig and IP-10 have also an important role in the adaptative immune response. In this study, we asked whether a food-grade bacterium, Lactococcus lactis, is able to produce a fusion protein comprising Mig and IP-10 (Mig::IP-10). The activity of the recombinant Mig::IP-10 produced by the genetically engineered L. lactis (LL-Mig::IP-10) was confirmed in a murine spleen cells chemotaxis assay. Moreover, the adjuvant properties of LL-Mig::IP-10 strain were evaluated in mice by the co-expression of a model antigen, the human papillomavirus type 16 E7 protein. Our data show that LL-Mig::IP-10 can produce a genetic fusion of Mig::IP-10 biologically active. This recombinant strain represents a potential candidate for the development of new strategies for mucosal vaccination.
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Abstract
Important developments in the design of recombinant lactic acid bacteria (LAB) as mucosal carriers for a range of health-beneficial compounds, such as antigens, allergens, immune modulators, antimicrobial and trefoil peptides, single-chain antibodies and a few enzymes, have taken place in the past decade. The different approaches, strategies and proof-of-concept studies that have been conducted in animal models are reviewed in this article. The rationale for the use of lactic acid bacteria as mucosal delivery vehicles and key aspects of their interaction with the host mucosal surfaces are discussed. An overview of the progress in the field of LAB-based mucosal vaccines and a discussion of protection studies that have been conducted in rodents, mainly by intranasal and intragastric immunization, are provided. The latest developments in the use of LAB as vechicles for DNA vaccination are described. Studies that deal with successful delivery of cytokines or trefoil peptides to treat experimental colitis in rodents are reviewed. Notably, the first Phase I trial has been conducted with patients that suffer from inflammatory bowel disease using safe biologically contained recombinant lactococci that secrete human interleukin-10. Efforts to induce oral tolerance and develop preventive strategies against type I allergies using LAB are highlighted. Anti-infective strategies that are based on the delivery of microbicidal peptides are discussed, with a special emphasis on the prevention of HIV-1 infection. The concluding section captures the key learning points in the field, identifies major questions that remain to be answered and highlights challenges for the future.
The development of lactic acid bacteria as delivery vehicles for therapeutics, anti-infectives and vaccines at mucosa is discussed in this Review. Engineered LAB could be deployed to treat conditions such as allergy and inflammatory bowel disease, and might also be adopted in the fight against pathogens, including HIV-1 infection. Studies of lactic acid bacteria (LAB) as delivery vehicles have focused mainly on the development of mucosal vaccines, with much effort being devoted to the generation of genetic tools for antigen expression in different bacterial locations. Subsequently, interleukins have been co-expressed with antigens in LAB to enhance the immune response that is raised against the antigen. LAB have also been used as a delivery system for a range of molecules that have different applications, including anti-infectives, therapies for allergic diseases and therapies for gastrointestinal diseases. Now that the first human trial with a Lactococcus strain that expresses recombinant interleukin-10 has been completed, we discuss what we have learnt, what we do not yet understand and what the future holds for therapy and prophylaxis with LAB.
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In vivo transfer of plasmid from food-grade transiting lactococci to murine epithelial cells. Gene Ther 2008; 15:1184-90. [PMID: 18418419 DOI: 10.1038/gt.2008.59] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We recently demonstrated that noninvasive food-grade Lactococcus lactis (L. lactis) can deliver eukaryotic expression plasmid in mammalian cells in vitro. Here, we evaluated, in vivo, whether a eukaryotic expression plasmid carried by lactococci can translocate to the epithelial cells of the intestinal membrane. The strain LL(pLIG:BLG1) carrying one plasmid containing a eukaryotic expression cassette encoding beta-lactoglobulin (BLG), a major allergen of cow's milk, was orally administered by gavage to mice. BLG cDNA was detected in the epithelial membrane of the small intestine of 40% of the mice and BLG was produced in 53% of the mice. Oral administration of LL(pLIG:BLG1) induced a low and transitory Th1-type immune response counteracting a Th2 response in case of further sensitization. We demonstrated for the first time the transfer of a functional plasmid to the epithelial membrane of the small intestine in mice by noninvasive food-grade lactococci.
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Mohamadzadeh M, Duong T, Hoover T, Klaenhammer TR. Targeting mucosal dendritic cells with microbial antigens from probiotic lactic acid bacteria. Expert Rev Vaccines 2008; 7:163-74. [PMID: 18324887 DOI: 10.1586/14760584.7.2.163] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The use of vaccines against infectious microbes has been critical to the advancement of medicine. Vaccine strategies combined with, or without, adjuvants have been established to eradicate various bacterial and viral pathogens. A new generation of vaccines is being developed using specific strains of Gram-positive, lactic acid bacteria and, notably, some probiotic lactobacilli. These bacteria have been safely consumed by humans for centuries in fermented foods. Thus, they can be orally administered, are well tolerated by recipients and could be easily and economically provided to large populations. In this overview, we focus on mucosal immunity and how its cellular component(s), particularly dendritic cells, can be specifically targeted to deliver immunogenic subunits, such as the protective antigen from Bacillus anthracis (the causative agent of anthrax). An antigen-specific immune response can be elicited using specific strains of Lactobacillus acidophilus expressing the protective antigen. A mucosal, dendritic cell-targeted approach increases the bioavailability of an immunogen of interest when delivered orally by L. acidophilus. This provides an efficiently elegant natural strategy and serves a dual function as an immune-stimulating adjuvant in vivo.
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Affiliation(s)
- Mansour Mohamadzadeh
- US Army Medical Research Institute of Infectious Diseases, 1425 Porter Street, Frederick, MD 21702, USA.
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Bermúdez-Humarán LG, Cortes-Perez NG, Ah-Leung S, Lefèvre F, Yang G, Pang Q, Wu C, Zeng Y, Adel-Patient K, Langella P. Current prophylactic and therapeutic uses of a recombinant Lactococcus lactis strain secreting biologically active interleukin-12. J Mol Microbiol Biotechnol 2008; 14:80-9. [PMID: 17957114 DOI: 10.1159/000106086] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The noninvasive and food-grade Gram-positive bacterium Lactococcus lactis is well adapted to deliver medical proteins to the mucosal immune system. In the last decade, the potential of live recombinant lactococci to deliver such proteins to the mucosal immune system has been investigated. This approach offers several advantages over the traditional systemic injection, such as easy administration and the ability to elicit both systemic and mucosal immune responses. This paper reviews the current research and advances made with recombinant L. lactis as live vector for the in situ delivery of biologically active interleukin-12, a potent pleiotropic cytokine with adjuvant properties when co-delivered with vaccinal antigens, at mucosal surfaces. Three well-illustrated examples demonstrate the high potential of interleukin-12-secreting lactococci strains for future prophylactic and therapeutic uses.
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Sim ACN, Lin W, Tan GKX, Sim MST, Chow VTK, Alonso S. Induction of neutralizing antibodies against dengue virus type 2 upon mucosal administration of a recombinant Lactococcus lactis strain expressing envelope domain III antigen. Vaccine 2008; 26:1145-54. [PMID: 18243432 DOI: 10.1016/j.vaccine.2007.12.047] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Revised: 12/04/2007] [Accepted: 12/28/2007] [Indexed: 01/12/2023]
Abstract
Mucosal vaccines present several advantages over conventional parenteral vaccines including their ease of administration and low cost, both criteria being priorities for developing countries plagued by infectious diseases. A recombinant Lactococcus lactis strain producing the envelope domain III (EDIII) antigen from dengue virus serotype 2 was engineered, and the ability of the live recombinant bacteria to trigger a systemic anti-EDIII IgG antibody response upon nasal or oral administration to BALB/c and C57BL/6 mice was investigated. Results showed that the antibody response depended on the route of administration and on the mouse strain inoculated. Out of six, two and three C57BL/6 mice orally and nasally inoculated with the recombinant bacteria, respectively, displayed anti-EDIII antibody responses higher than that obtained in the mouse group intraperitoneally (i.p.) immunized with heat-inactivated dengue 2 virus. The protective potential of the immune sera was measured using the plaque reduction neutralizing test (PRNT) and results indicated that high anti-EDIII antibody levels did not correlate directly with high neutralizing activities. Immune sera from orally inoculated mice were found the most potent to neutralize in vitro dengue infection with neutralizing antibody activities in some cases higher than that obtained with the immune sera from mice i.p. injected with heat-inactivated virus.
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Affiliation(s)
- Adrian C N Sim
- Immunology Programme, Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Daniel C, Repa A, Mercenier A, Wiedermann U, Wells J. The European LABDEL project and its relevance to the prevention and treatment of allergies. Allergy 2007; 62:1237-42. [PMID: 17919137 DOI: 10.1111/j.1398-9995.2007.01496.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In March 2001, the European Commission funded a 3-year project (contract no. QLK3-CT-2000-00340) under the fifth Framework Programme to develop and test prototype products based on the oral delivery of vaccine and therapeutic agents using harmless lactic acid bacteria (LAB). The project, best known under its acronym LABDEL (for LAB delivery) also included research on LAB fermentation and technological innovations aimed at enhancing the efficiency of LAB delivery systems (1). One of the key scientific objectives was to investigate the possibility to prevent or treat a type I allergic disease using mucosal administration of LAB expressing the pollen allergen Bet v 1. The aim of this paper was to describe the background of the project with reference to a limited selection of articles and recent reviews as well as the results and major conclusions arising from this part of the project.
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Affiliation(s)
- C Daniel
- Laboratoire des Bactéries Lactiques et Immunité des Muqueuses, Institut Pasteur de Lille, Lille Cedex, France
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Cortes-Perez NG, Lefèvre F, Corthier G, Adel-Patient K, Langella P, Bermúdez-Humarán LG. Influence of the route of immunization and the nature of the bacterial vector on immunogenicity of mucosal vaccines based on lactic acid bacteria. Vaccine 2007; 25:6581-8. [PMID: 17675182 DOI: 10.1016/j.vaccine.2007.06.062] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2007] [Revised: 06/25/2007] [Accepted: 06/26/2007] [Indexed: 01/30/2023]
Abstract
Mucosal immunity plays a major role in the prevention of infectious diseases. Genetically engineered lactic acid bacteria (LAB) have been tested in the last 10 years as safe mucosal delivery vectors. We previously showed that intranasal co-administration of recombinant lactococci displaying human papillomavirus type 16 (HPV-16) E7 antigen at its surface (LL-E7) and secreting biologically active interleukine-12 (LL-IL-12) has therapeutic effects on HPV-16-induced tumors in mice. In this work, to optimize the immunization protocol, a comparison between intragastric and intranasal routes of administration was performed and two different LAB strains (Lactococcus lactis and Lactobacillus plantarum) were tested as delivery vector. E7-specific systemic and mucosal responses as well as potent anti-tumor effects were higher after intranasal immunization with LL-E7 and LL-IL-12 strains than intragastric administration. Comparisons of the immune responses induced by intranasal administration of either LL-E7 or Lb. plantarum anchoring E7 antigen (LP-E7) revealed highest systemic responses with recombinant Lactobacillus. Furthermore, although only a modest mucosal immune response was observed with LP-E7, this strain was able to induce a significant regression of HPV-induced tumors in contrast to LL-E7. Taken together, our results demonstrate the advantage of intranasal over intragastric route of immunization to induce an antigen-specific immune response and suggest that intrinsic immunomodulatory properties of Lb. plantarum play an important role in the immunogenicity of the expressed antigen.
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Affiliation(s)
- Naima G Cortes-Perez
- Unité d'Ecologie et de Physiologie du Système Digestif, INRA, Domaine de Vilvert, 78352 Jouy-en-Josas Cedex, France
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Corthésy B, Gaskins HR, Mercenier A. Cross-talk between probiotic bacteria and the host immune system. J Nutr 2007; 137:781S-90S. [PMID: 17311975 DOI: 10.1093/jn/137.3.781s] [Citation(s) in RCA: 206] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Among the numerous purported health benefits attributed to probiotic bacteria, their capacity to interact with the immune system of the host is now supported by an increasing number of in vitro and in vivo experiments. In addition to these, a few well-controlled human intervention trials aimed at preventing chronic immune dysregulation have been reported. Even though the precise molecular mechanisms governing the cross-talk between these beneficial bacteria and the intestinal ecosystem remain to be discovered, a new and fascinating phase of research has been initiated in this area as demonstrated by a series of recent articles. This article summarizes the status and latest progress of the field in selected areas and aims at identifying key questions that remain to be addressed, especially concerning the translocation of ingested bacteria, the identification of major immunomodulatory compounds of probiotics, and specific aspects of the host-microbe cross-talk. The interaction with immunocompetent cells and the role of secretory IgA in gut homeostasis are also evoked. Finally, a brief overview is provided on the potential use of recombinant DNA technology to enhance the health benefits of probiotic strains and to unravel specific mechanisms of the host-microbe interaction.
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Affiliation(s)
- Blaise Corthésy
- R&D Laboratory of the Division of Immunology and Allergy, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland
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Cortes-Perez NG, Ah-Leung S, Bermúdez-Humarán LG, Corthier G, Wal JM, Langella P, Adel-Patient K. Intranasal coadministration of live lactococci producing interleukin-12 and a major cow's milk allergen inhibits allergic reaction in mice. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2007; 14:226-33. [PMID: 17202306 PMCID: PMC1828845 DOI: 10.1128/cvi.00299-06] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The Th1/Th2 balance deregulation toward a Th2 immune response plays a central role in allergy. We previously demonstrated that administration of recombinant Lactococcus lactis strains expressing bovine beta-lactoglobulin (BLG), a major cow's milk allergen, partially prevents mice from sensitization. In the present study, we aimed to improve this preventive effect by coadministration of L. lactis BLG and a second recombinant L. lactis strain producing biologically active interleukin-12 (IL-12). This L. lactis strain producing IL-12 was previously used to enhance the Th1 immune response in a tumoral murine model (L. G. Bermúdez-Humarán et al., J. Immunol. 175:7297-7302, 2005). A comparison of the administration of either BLG alone or BLG in the presence of IL-12 was conducted. A BLG-specific primary Th1 immune response was observed only after intranasal coadministration of both L. lactis BLG and IL-12-producing L. lactis, as demonstrated by the induction of serum-specific immunoglobulin G2a (IgG2a) concomitant with gamma interferon secretion by splenocytes, confirming the adjuvanticity of IL-12-producing L. lactis. Immunized mice were further sensitized by intraperitoneal administration of purified BLG, and the allergic reaction was elicited by intranasal challenge with purified BLG. Mice pretreated with BLG in either the presence or the absence of IL-12 were rendered completely tolerant to further allergic sensitization and elicitation. Pretreatment with either L. lactis BLG or L. lactis BLG and IL-12-producing L. lactis induces specific anti-BLG IgG2a production in serum and bronchoalveolar lavage (BAL) fluid. Although specific serum IgE was not affected by these pretreatments, the levels of eosinophilia and IL-5 secretion in BAL fluid were significantly reduced after BLG challenge in the groups pretreated with L. lactis BLG and L. lactis BLG-IL-12-producing L. lactis, demonstrating a decreased allergic reaction. Our data demonstrate for the first time (i) the induction of a protective Th1 response by the association of L. lactis BLG and IL-12-producing L. lactis which inhibits the elicitation of the allergic reaction to BLG in mice and (ii) the efficiency of intranasal administration of BLG for the induction of tolerance.
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Affiliation(s)
- Naima G Cortes-Perez
- Laboratoire INRA d'Immuno-Allergie Alimentaire, DSV/SPI-Bâtiment 136, CEA de Saclay, 91191 Gif-sur-Yvette cedex, France
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Oddone GM, Lan CQ, Rawsthorne H, Mills DA, Block DE. Optimization of fed-batch production of the model recombinant protein GFP inLactococcus lactis. Biotechnol Bioeng 2007; 96:1127-38. [PMID: 17117427 DOI: 10.1002/bit.21192] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Optimization of recombinant protein production using lactic acid bacteria (LAB) remains an important obstacle on the road to realizing LAB as oral vaccine delivery vehicles. Despite this, there have been few published investigations to explore the higher limits of LAB recombinant protein expression in fed-batch fermentations. In this study, results from response surface experiments suggested an optimal set of conditions for expression of green fluorescent protein (GFP), a model recombinant protein, in bench-scale, fed-batch Lactococcus lactis IL1403 fermentations. The 48 4-L fed-batch fermentations in this set of experiments, along with preliminary studies, investigated the effects of pH, temperature, hemin concentration, concentration of the nisin inducer per cell, and time of induction. Cell densities in this data set ranged from 2.9 to 7.4 g/L and maximum GFP expression per cell ranged from 0.1 to 4.4 relative fluorescence units (RFU)/g. The optimal 4-L, fed-batch fermentation process found here yields growth and protein expression values that dramatically improve upon results from traditional test tube and flask processes. Relative to the traditional process, the experimental optimum conditions yield 4.9 times the cell density, 1.6 times the protein per cell mass, and 8 times the total protein concentration. Unexpectedly, experiments also revealed that the compound hemin, known previously to improve growth and survival of Lactococcus lactis (L. lactis), negatively impacted recombinant protein production when added in concentrations from 5 to 20 microg/mL with this strain. The improvement in protein expression over traditional processes demonstrated here is an important step toward commercial development of LAB for oral delivery of recombinant vaccines and therapeutic proteins.
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Affiliation(s)
- Gian M Oddone
- Department of Chemical Engineering and Materials Science, University of California, One Shields Ave, Davis, California 95616, USA
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Colombi D, Oliveira MLS, Campos IB, Monedero V, Pérez-Martinez G, Ho PL. Haemagglutination induced by Bordetella pertussis filamentous haemagglutinin adhesin (FHA) is inhibited by antibodies produced against FHA(430-873) fragment expressed in Lactobacillus casei. Curr Microbiol 2006; 53:462-6. [PMID: 17106803 DOI: 10.1007/s00284-005-0388-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Accepted: 03/15/2006] [Indexed: 11/28/2022]
Abstract
Filamentous haemagglutinin adhesin (FHA) is an important virulence factor from Bordetella pertussis related to the adhesion and spread of the bacteria through the respiratory tract. Three distinct domains have been characterized in mature FHA, and among them, the FHA(442-863) fragment was suggested to be responsible for the heparin-binding activity. In this study, we cloned the gene encoding the HEP fragment (FHA(430-873)) in a Lactobacillus casei-inducible expression vector based on the lactose operon. The recombinant bacteria, transformed with the resulting construct (L. casei-HEP), were able to express the heterologous protein depending on the sugar added to the culture. Subcutaneous inoculation of L. casei-HEP in Balb/C mice, using the cholera toxin B subunit as adjuvant, induced systemic anti-HEP antibodies that were able to inhibit in vitro erythrocyte haemagglutination induced by FHA. This is the first example of a B. pertussis antigen produced in lactic acid bacteria and opens new perspectives for alternative vaccine strategies against whooping cough.
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MESH Headings
- Adhesins, Bacterial/genetics
- Adhesins, Bacterial/immunology
- Adjuvants, Immunologic
- Animals
- Antibodies, Bacterial/genetics
- Antibodies, Bacterial/immunology
- Bordetella pertussis/immunology
- Female
- Hemagglutination/immunology
- Immunity, Mucosal
- Lac Operon
- Lacticaseibacillus casei/genetics
- Mice
- Mice, Inbred BALB C
- Pertussis Vaccine/immunology
- Protein Structure, Tertiary
- Recombinant Proteins/immunology
- Transformation, Bacterial
- Vaccines, Synthetic/immunology
- Virulence Factors, Bordetella/genetics
- Virulence Factors, Bordetella/immunology
- Whooping Cough/prevention & control
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Affiliation(s)
- Débora Colombi
- Centro de Biotecnologia, Instituto Butantan, São Paulo, Brazil
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Thanantong N, Edwards S, Sparagano OAE. Characterization of Lactic Acid Bacteria and Other Gut Bacteria in Pigs by a Macroarraying Method. Ann N Y Acad Sci 2006; 1081:276-9. [PMID: 17135526 DOI: 10.1196/annals.1373.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Lactic acid bacteria (LAB) consist of many genera, Gram-positive, and nonspore-forming micro-organisms; some members being used as probiotics while some others have negative effects on pig health. Bacterial species in the gastrointestinal tract can produce antibacterial substances, reduce serum cholesterol in their host, or can be responsible for growth reduction, diarrhea, and intestinal epithelial damage. It is therefore important for the pig industry to evaluate the impact of food and farm management on the presence of "good" or "bad" bacteria and the risk for consumers. This articles focuses on the molecular identification of gut microflora species following different diets given to pigs in UK and correlating the data on growth, health, and welfare. First of all, pig feces were individually collected from sows before and after farrowing and also from piglets before and after weaning over several months. Bacteria colonies were grown on MRS agar plates from feces and DNA was extracted (QIAamp DNA stool kit) and amplified using 16S rDNA (27f and 519r) primers. DNA sequencing and sequence alignment allowed us to identify species-specific zones, which were used as probes in a macroarray system also known as reverse line blot hybridization. Some probes were found to be species specific for the following species: Lactobacillus acidophilus, L. animalis, L. gallinarum, L. kitasanotis, L salivarius, Streptococcus alactolyticus, S. hyointestinalis, and Sarcina ventriculi. Actual studies are now focusing on the impact of diets of the microflora in different gut parts and at different stages of the animal's life.
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Affiliation(s)
- Narut Thanantong
- School of Agriculture, Food and Rural Development, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
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Audouy SAL, van Selm S, van Roosmalen ML, Post E, Kanninga R, Neef J, Estevão S, Nieuwenhuis EES, Adrian PV, Leenhouts K, Hermans PWM. Development of lactococcal GEM-based pneumococcal vaccines. Vaccine 2006; 25:2497-506. [PMID: 17081660 DOI: 10.1016/j.vaccine.2006.09.026] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We report the development of a novel protein-based nasal vaccine against Streptococcus pneumoniae, in which three pneumococcal proteins were displayed on the surface of a non-recombinant, killed Lactococcus lactis-derived delivery system, called Gram-positive Enhancer Matrix (GEM). The GEM particles induced the production of the proinflammatory cytokine tumour necrosis factor-alpha (TNF-alpha) by macrophages as well as the maturation of dendritic cells. The pneumococcal proteins IgA1 protease (IgA1p), putative proteinase maturation protein A (PpmA) and streptococcal lipoprotein A (SlrA) were anchored in trans to the surface of the GEM particles after recombinant production of the antigens in L. lactis as hybrids with a lactococcal cell wall binding domain, named Protein Anchor domain (PA). Intranasal immunisation with the SlrA-IgA1p or trivalent vaccine combinations without additional adjuvants showed significant protection against fatal pneumococcal pneumonia in mice. The GEM-based trivalent vaccine is a potential pneumococcal vaccine candidate that is expected to be easy to administer, safe and affordable to produce.
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de Vries MC, Vaughan EE, Kleerebezem M, de Vos WM. Lactobacillus plantarum—survival, functional and potential probiotic properties in the human intestinal tract. Int Dairy J 2006. [DOI: 10.1016/j.idairyj.2005.09.003] [Citation(s) in RCA: 190] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Daniel C, Repa A, Wild C, Pollak A, Pot B, Breiteneder H, Wiedermann U, Mercenier A. Modulation of allergic immune responses by mucosal application of recombinant lactic acid bacteria producing the major birch pollen allergen Bet v 1. Allergy 2006; 61:812-9. [PMID: 16792578 DOI: 10.1111/j.1398-9995.2006.01071.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Probiotic lactic acid bacteria (LAB) are able to modulate the host immune system and clinical trials have demonstrated that specific strains have the capacity to reduce allergic symptoms. Therefore, we aimed to evaluate the potential of recombinant LAB producing the major birch pollen allergen Bet v 1 for mucosal vaccination against birch pollen allergy. METHODS Recombinant Bet v 1-producing Lactobacillus plantarum and Lactococcus lactis strains were constructed. Their immunogenicity was compared with purified Bet v 1 by subcutaneous immunization of mice. Intranasal application of the live recombinant strains was performed to test their immunomodulatory potency in a mouse model of birch pollen allergy. RESULTS Bet v 1 produced by the LAB was recognized by monoclonal anti-Bet v 1 and IgE antibodies from birch pollen-allergic patients. Systemic immunization with the recombinant strains induced significantly lower IgG1/IgG2a ratios compared with purified Bet v 1. Intranasal pretreatment led to reduced allergen-specific IgE vs enhanced IgG2a levels and reduced interleukin (IL)-5 production of splenocytes in vitro, indicating a shift towards non-allergic T-helper-1 (Th1) responses. Airway inflammation, i.e. eosinophils and IL-5 in lung lavages, was reduced using either Bet v 1-producing or control strains. Allergen-specific secretory IgA responses were enhanced in lungs and intestines after pretreatment with only the Bet v 1-producing strains. CONCLUSIONS Mucosal vaccination with live recombinant LAB, leading to a shift towards non-allergic immune responses along with enhanced allergen-specific mucosal IgA levels offers a promising approach to prevent systemic and local allergic immune responses.
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Affiliation(s)
- C Daniel
- Laboratoire de Bactériologie des Ecosystèmes, Institut Pasteur de Lille, Lille Cedex, France
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Bermúdez-Humarán L, Langella P. Des bactéries pour prévenir et traiter le cancer du col de l’utérus induit par le papillomavirus humain de type 16. Med Sci (Paris) 2006; 22:472-3. [PMID: 16687109 DOI: 10.1051/medsci/2006225472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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de Vos WM, Castenmiller JJ, Hamer RJ, Brummer RJM. Nutridynamics--studying the dynamics of food components in products and in the consumer. Curr Opin Biotechnol 2006; 17:217-25. [PMID: 16524715 DOI: 10.1016/j.copbio.2006.02.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2006] [Revised: 02/15/2006] [Accepted: 02/22/2006] [Indexed: 11/21/2022]
Abstract
The concentrations and biological effects of nutrients, antinutrients and bioactive compounds, including microbes and their constituents, are affected by production and processing steps, the food matrix in which they reside, the way they are digested and metabolized in the human body, and whether or not and in what form they subsequently reach their target site. A new scientific concept, denoted here as 'nutridynamics', aims to unravel the dynamics of these processes by using a systematic approach to study how a food component is affected by the food matrix itself and what it does in the body. This holistic concept has potential synergy with the areas of food technology and nutrigenomics, and provides a link between food production and the mechanistic effects of bioactive ingredients.
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Affiliation(s)
- Willem M de Vos
- Wageningen Centre for Food Sciences, Diedenweg 20, PO Box 557, 6700 AN Wageningen, The Netherlands.
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Teusink B, Smid EJ. Modelling strategies for the industrial exploitation of lactic acid bacteria. Nat Rev Microbiol 2006; 4:46-56. [PMID: 16357860 DOI: 10.1038/nrmicro1319] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Lactic acid bacteria (LAB) have a long tradition of use in the food industry, and the number and diversity of their applications has increased considerably over the years. Traditionally, process optimization for these applications involved both strain selection and trial and error. More recently, metabolic engineering has emerged as a discipline that focuses on the rational improvement of industrially useful strains. In the post-genomic era, metabolic engineering increasingly benefits from systems biology, an approach that combines mathematical modelling techniques with functional-genomics data to build models for biological interpretation and--ultimately--prediction. In this review, the industrial applications of LAB are mapped onto available global, genome-scale metabolic modelling techniques to evaluate the extent to which functional genomics and systems biology can live up to their industrial promise.
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Affiliation(s)
- Bas Teusink
- Kluyver Centre for Genomics of Industrial Fermentations.
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Mierau I, Kleerebezem M. 10 years of the nisin-controlled gene expression system (NICE) in Lactococcus lactis. Appl Microbiol Biotechnol 2005; 68:705-17. [PMID: 16088349 DOI: 10.1007/s00253-005-0107-6] [Citation(s) in RCA: 375] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2005] [Revised: 07/13/2005] [Accepted: 07/17/2005] [Indexed: 10/25/2022]
Abstract
Lactococcus lactis is a Gram-positive lactic acid bacterium that, in addition to its traditional use in food fermentations, is increasingly used in modern biotechnological applications. In the last 25 years great progress has been made in the development of genetic engineering tools and the molecular characterization of this species. A new versatile and tightly controlled gene expression system, based on the auto-regulation mechanism of the bacteriocin nisin, was developed 10 years ago-the NIsin Controlled gene Expression system, called NICE. This system has become one of the most successful and widely used tools for regulated gene expression in Gram-positive bacteria. The review describes, after a brief introduction of the host bacterium L. lactis, the fundaments, components and function of the NICE system. Furthermore, an extensive overview is provided of the different applications in lactococci and other Gram-positive bacteria: (1) over-expression of homologous and heterologous genes for functional studies and to obtain large quantities of specific gene products, (2) metabolic engineering, (3) expression of prokaryotic and eukaryotic membrane proteins, (4) protein secretion and anchoring in the cell envelope, (5) expression of genes with toxic products and analysis of essential genes and (6) large-scale applications. Finally, an overview is given of growth and induction conditions for lab-scale and industrial-scale applications.
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Affiliation(s)
- Igor Mierau
- NIZO food research, P.O. Box 20, 6710, Ede, The Netherlands.
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Saxelin M, Tynkkynen S, Mattila-Sandholm T, de Vos WM. Probiotic and other functional microbes: from markets to mechanisms. Curr Opin Biotechnol 2005; 16:204-11. [PMID: 15831388 DOI: 10.1016/j.copbio.2005.02.003] [Citation(s) in RCA: 248] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Insight into the diversity and function of the human intestinal microbiota has been stimulated by clinical studies with bacteria that exhibit specific functions and which are marketed as probiotics to positively affect our health. Initial efforts concentrated on establishing sound scientific support for the efficacy of these probiotic bacteria, which mainly include Lactobacillus and Bifidobacterium species. Following these evidence-based functional approaches, considerable research is now focused on the mechanisms of action of probiotic bacteria. The mechanisms identified to date mainly relate to the stimulation of host defence systems, immune modulation and the competitive exclusion of pathogens. Recent efficacy, molecular and genomics-based studies have also been reported for some probiotic strains that have found their position in the market place.
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Affiliation(s)
- Maija Saxelin
- Valio Ltd, R&D, Meijeritie 4A, PO Box 30, 00039 Valio, Helsinki, Finland
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