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Huynh DT, Chathuranga WG, Chathuranga K, Lee JS, Kim CJ. Mucosal Administration of Lactobacillus casei Surface-Displayed HA1 Induces Protective Immune Responses against Avian Influenza A Virus in Mice. J Microbiol Biotechnol 2024; 34:735-745. [PMID: 37915251 PMCID: PMC11016770 DOI: 10.4014/jmb.2307.07040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023]
Abstract
Avian influenza is a serious threat to both public health and the poultry industry worldwide. This respiratory virus can be combated by eliciting robust immune responses at the site of infection through mucosal immunization. Recombinant probiotics, specifically lactic acid bacteria, are safe and effective carriers for mucosal vaccines. In this study, we engineered recombinant fusion protein by fusing the hemagglutinin 1 (HA1) subunit of the A/Aquatic bird/Korea/W81/2005 (H5N2) with the Bacillus subtilis poly γ-glutamic acid synthetase A (pgsA) at the surface of Lactobacillus casei (pgsA-HA1/L. casei). Using subcellular fractionation and flow cytometry we confirmed the surface localization of this fusion protein. Mucosal administration of pgsA-HA1/L. casei in mice resulted in significant levels of HA1-specific serum IgG, mucosal IgA and neutralizing antibodies against the H5N2 virus. Additionally, pgsA-HA1/L. casei-induced systemic and local cell-mediated immune responses specific to HA1, as evidenced by an increased number of IFN-γ and IL-4 secreting cells in the spleens and higher levels of IL-4 in the local lymphocyte supernatants. Finally, mice inoculated with pgsA-HA1/L. casei were protected against a 10LD50 dose of the homologous mouse-adapted H5N2 virus. These results suggest that mucosal immunization with L. casei displaying HA1 on its surface could be a potential strategy for developing a mucosal vaccine against other H5 subtype viruses.
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Affiliation(s)
- Dung T. Huynh
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - W.A. Gayan Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Kiramage Chathuranga
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
| | - Chul-Joong Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon 34314, Republic of Korea
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2
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Matsuzaki C, Takagi H, Saiga S, Kinoshita Y, Yamaguchi M, Higashimura Y, Yamamoto K, Yamaguchi M. Prebiotic effect of galacto- N-biose on the intestinal lactic acid bacteria as enhancer of acetate production and hypothetical colonization. Appl Environ Microbiol 2024; 90:e0144523. [PMID: 38411084 PMCID: PMC10952502 DOI: 10.1128/aem.01445-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 01/28/2024] [Indexed: 02/28/2024] Open
Abstract
Galacto-N-biose (GNB) is an important core structure of glycan of mucin glycoproteins in the gastrointestinal (GI) mucosa. Because certain beneficial bacteria inhabiting the GI tract, such as bifidobacteria and lactic acid bacteria, harbor highly specialized GNB metabolic capabilities, GNB is considered a promising prebiotic for nourishing and manipulating beneficial bacteria in the GI tract. However, the precise interactions between GNB and beneficial bacteria and their accompanying health-promoting effects remain elusive. First, we evaluated the proliferative tendency of beneficial bacteria and their production of beneficial metabolites using gut bacterial strains. By comparing the use of GNB, glucose, and inulin as carbon sources, we found that GNB enhanced acetate production in Lacticaseibacillus casei, Lacticaseibacillus rhamnosus, Lactobacillus gasseri, and Lactobacillus johnsonii. The ability of GNB to promote acetate production was also confirmed by RNA-seq analysis, which indicated the upregulation of gene clusters that catalyze the deacetylation of N-acetylgalactosamine-6P and biosynthesize acetyl-CoA from pyruvate, both of which result in acetate production. To explore the in vivo effect of GNB in promoting acetate production, antibiotic-treated BALB/cA mice were administered with GNB with L. rhamnosus, resulting in a fecal acetate content that was 2.7-fold higher than that in mice administered with only L. rhamnosus. Moreover, 2 days after the last administration, a 3.7-fold higher amount of L. rhamnosus was detected in feces administered with GNB with L. rhamnosus than in feces administered with only L. rhamnosus. These findings strongly suggest the prebiotic potential of GNB in enhancing L. rhamnosus colonization and converting L. rhamnosus into higher acetate producers in the GI tract. IMPORTANCE Specific members of lactic acid bacteria, which are commonly used as probiotics, possess therapeutic properties that are vital for human health enhancement by producing immunomodulatory metabolites such as exopolysaccharides, short-chain fatty acids, and bacteriocins. The long residence time of probiotic lactic acid bacteria in the GI tract prolongs their beneficial health effects. Moreover, the colonization property is also desirable for the application of probiotics in mucosal vaccination to provoke a local immune response. In this study, we found that GNB could enhance the beneficial properties of intestinal lactic acid bacteria that inhabit the human GI tract, stimulating acetate production and promoting intestinal colonization. Our findings provide a rationale for the addition of GNB to lactic acid bacteria-based functional foods. This has also led to the development of therapeutics supported by more rational prebiotic and probiotic selection, leading to an improved healthy lifestyle for humans.
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Affiliation(s)
- Chiaki Matsuzaki
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Hiroki Takagi
- Department of Production Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Sorachi Saiga
- Department of Production Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Yuun Kinoshita
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Misako Yamaguchi
- Department of Organic Bio Chemistry, Faculty of Education, Wakayama University, Wakayama, Japan
| | - Yasuki Higashimura
- Department of Food Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, Japan
| | - Kenji Yamamoto
- Center for Innovative and Joint Research, Wakayama University, Wakayama, Japan
| | - Masanori Yamaguchi
- Department of Organic Bio Chemistry, Faculty of Education, Wakayama University, Wakayama, Japan
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Fatehi Z, Doosti A, Jami MS. Oral vaccination with novel Lactococcus lactis mucosal live vector-secreting Brucella lumazine synthase (BLS) protein induces humoral and cellular immune protection against Brucella abortus. Arch Microbiol 2023; 205:122. [PMID: 36939918 PMCID: PMC10025791 DOI: 10.1007/s00203-023-03471-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/25/2023] [Accepted: 03/07/2023] [Indexed: 03/21/2023]
Abstract
This work aimed to provide recombinant Lactococcus lactis as a potential live vector for the manufacture of recombinant Brucella abortus (rBLS-Usp45). The sequences of the genes were collected from the GenBank database. Using Vaxijen and ccSOL, the proteins' immunogenicity and solubility were evaluated. Mice were given oral vaccinations with recombinant L. lactis. Anti-BLS-specific IgG antibodies were measured by ELISA assay. Cytokine reactions were examined using real-time PCR and the ELISA technique. The BLS protein was chosen for immunogenicity based on the vaccinology screening findings since it had maximum solubility and antigenic values of 99% and 0.75, respectively. The BLS gene, digested at 477 bp, was electrophoretically isolated to demonstrate that the recombinant plasmid was successfully produced. Protein-level antigen expression showed that the target group produced the 18 kDa-sized BLS protein, whereas the control group did not express any proteins. In the sera of mice given the L. lactis-pNZ8148-BLS-Usp45 vaccine 14 days after priming, there was a significant level of BLS-specific IgG1, IgG2a (P < 0.001) compared to the PBS control group. Vaccinated mice showed higher levels of IFN-γ, TNFα, IL-4, and IL-10 in samples obtained on days 14 and 28, after receiving the L. lactis-pNZ8148-BLS-Usp45 and IRBA vaccines (P < 0.001). The inflammatory reaction caused less severe spleen injuries, alveolar edema, lymphocyte infiltration, and morphological damage in the target group's spleen sections. Based on our findings, an oral or subunit-based vaccine against brucellosis might be developed using L. lactis-pNZ8148-BLS-Usp45 as a novel, promising, and safe alternative to the live attenuated vaccines now available.
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Affiliation(s)
- Zahra Fatehi
- Department of Biology, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Abbas Doosti
- Biotechnology Research Center, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
| | - Mohammad Saeid Jami
- Department of Biology, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
- Cellular and Molecular Research Center, Basic Health Sciences Research Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Qin D, Bai Y, Li Y, Huang Y, Li L, Wang G, Qu Y, Wang J, Yu LY, Hou X. Changes in Gut Microbiota by the Lactobacillus casei Anchoring the K88 Fimbrial Protein Prevented Newborn Piglets From Clinical Diarrhea. Front Cell Infect Microbiol 2022; 12:842007. [PMID: 35372106 PMCID: PMC8972131 DOI: 10.3389/fcimb.2022.842007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/21/2022] [Indexed: 12/30/2022] Open
Abstract
In the last 20 years, accumulating evidence indicates that the gut microbiota contribute to the development, maturation, and regulation of the host immune system and mediate host anti-pathogen defenses. Lactobacillus casei (L.casei) is a normal flora of the gastrointestinal tract in mammals and, as a great mucosal delivery vehicle, has wide use in bioengineering. However, the diarrhea prevention role of commensal intestinal microbiota interfered by the recombinant L.casei (rL.casei) in newborn piglets is not well understood. In our study, newborn piglets orally fed with the rL.casei surface displayed the fimbrial protein K88 of enterotoxigenic Escherichia coli (ETEC) and their feces were collected for a period of time after feeding. The next-generation sequencing of these fecal samples showed that the relative abundance of L.casei was significantly increased. The oral administration of rL.casei altered the intestinal microbial community as evidenced by altered microbial diversity and microbial taxonomic composition. Remarkably, the functional enhancing of the intestinal bacterial community by rL.casei was positively correlated with membrane transport, replication, and repair (p < 0.05). The specific antibody detection indicates that high levels of anti-K88 secretory immunoglobulin A (sIgA) were induced in fecal samples and systemic immunoglobulin G was produced in serum. The diarrhea rate in piglets caused by ETEC K88 was decreased by about 24%. Thus, the oral administration of rL.casei not only activated the mucosal and humoral immune responses in vivo but also contributed to shape the intestinal probiotics in newborn piglets and to significantly reduce the diarrhea rates of newborn piglets.
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Affiliation(s)
- Da Qin
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yongfei Bai
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yan Li
- Colleges of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yanmei Huang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Liyang Li
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Guihua Wang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yi Qu
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Jiabin Wang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Li-Yun Yu
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
- Colleges of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
- *Correspondence: Li-Yun Yu, ; Xilin Hou,
| | - Xilin Hou
- Colleges of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
- *Correspondence: Li-Yun Yu, ; Xilin Hou,
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Immune Responses in Pregnant Sows Induced by Recombinant Lactobacillus johnsonii Expressing the COE Protein of Porcine Epidemic Diarrhea Virus Provide Protection for Piglets against PEDV Infection. Viruses 2021; 14:v14010007. [PMID: 35062210 PMCID: PMC8779658 DOI: 10.3390/v14010007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/02/2021] [Accepted: 12/17/2021] [Indexed: 11/16/2022] Open
Abstract
Porcine epidemic diarrhea (PED) induced by porcine epidemic diarrhea virus (PEDV) is an intestinal infectious disease in pigs that causes serious economic losses to the pig industry. To develop an effective oral vaccine against PEDV infection, we used a swine-origin Lactobacillus johnsonii (L. johnsonii) as an antigen delivery carrier. A recombinant strain pPG-T7g10-COE/L. johnsonii (L. johnsonii-COE) expressing COE protein (a neutralizing epitope of the viral spike protein) was generated. The immunomodulatory effect on dendritic cell in vitro and immunogenicity in pregnant sows was evaluated following oral administration. L. johnsonii-COE could activate monocyte-derived dendritic cell (MoDC) maturation and triggered cell immune responses. After oral vaccination with L. johnsonii-COE, levels of anti-PEDV-specific serum IgG, IgA, and IgM antibodies as well as mucosal secretory immunoglobulin A (SIgA) antibody were induced in pregnant sows. High levels of PEDV-specific SIgA and IgG antibodies were detected in the maternal milk, which provide effective protection for the piglets against PEDV infection. In summary, oral L. johnsonii-COE was able to efficiently activate anti-PEDV humoral and cellular immune responses, demonstrating potential as a vaccine for use in sows to provide protection of their piglets against PEDV.
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Belkina TV, Averina OV, Savenkova EV, Danilenko VN. Human Intestinal Microbiome and the Immune System: The Role of Probiotics in Shaping an Immune System Unsusceptible to COVID-19 Infection. BIOLOGY BULLETIN REVIEWS 2021. [PMCID: PMC8365270 DOI: 10.1134/s2079086421040034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- T. V. Belkina
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - O. V. Averina
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - E. V. Savenkova
- International Institute for Strategic Development of Sectoral Economics, Peoples’ Friendship University of Russia (RUDN), Moscow, Russia
| | - V. N. Danilenko
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
- International Institute for Strategic Development of Sectoral Economics, Peoples’ Friendship University of Russia (RUDN), Moscow, Russia
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K-Ras Peptide Mimotope Induces Antigen Specific Th1 and B-Cell Immune Responses against G12A-Mutated K-Ras Antigen in Balb/c Mice. Vaccines (Basel) 2021; 9:vaccines9030195. [PMID: 33652552 PMCID: PMC7996567 DOI: 10.3390/vaccines9030195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/30/2020] [Accepted: 01/06/2021] [Indexed: 12/22/2022] Open
Abstract
KRAS G12A somatic point mutation in adenocarcinomas is categorized clinically as ineligibility criteria for anti-epidermal growth factor receptor (EGFR) monoclonal antibody therapies. In this study, a modified G12A-K-ras epitope (139A) with sequence-specific modifications to improve immunogenicity was developed as a potential vaccine against G12A-mutant KRAS cancers. Additionally, coupling of the 139A epitope with a tetanus toxoid (TTD) universal T-cell epitope to improve antigenicity was also reported. To facilitate convenient oral administration, Lactococcus lactis, which possesses innate immunomodulatory properties, was chosen as a live gastrointestinal delivery vehicle. Recombinant L. lactis strains secreting a G12A mutated K-ras control and 139A with and without TTD fusion were generated for comparative immunogenicity assessment. BALB/c mice were immunized orally, and high survivability of L. lactis passage through the gastrointestinal tract was observed. Elevations in B-cell count with a concomitant titre of antigen-specific IgG and interferon-γ secreting T-cells were observed in the 139A treated mice group. Interestingly, an even higher antigen-specific IgA response and interferon-γ secreting T-cell counts were observed in 139A-TTD mice group upon re-stimulation with the G12A mutated K-ras antigen. Collectively, these results indicated that an antigen-specific immune response was successfully stimulated by 139A-TTD vaccine, and a TTD fusion was successful in further enhancing the immune responses.
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Kelly VW, Liang BK, Sirk SJ. Living Therapeutics: The Next Frontier of Precision Medicine. ACS Synth Biol 2020; 9:3184-3201. [PMID: 33205966 DOI: 10.1021/acssynbio.0c00444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Modern medicine has long studied the mechanism and impact of pathogenic microbes on human hosts, but has only recently shifted attention toward the complex and vital roles that commensal and probiotic microbes play in both health and dysbiosis. Fueled by an enhanced appreciation of the human-microbe holobiont, the past decade has yielded countless insights and established many new avenues of investigation in this area. In this review, we discuss advances, limitations, and emerging frontiers for microbes as agents of health maintenance, disease prevention, and cure. We highlight the flexibility of microbial therapeutics across disease states, with special consideration for the rational engineering of microbes toward precision medicine outcomes. As the field advances, we anticipate that tools of synthetic biology will be increasingly employed to engineer functional living therapeutics with the potential to address longstanding limitations of traditional drugs.
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Affiliation(s)
- Vince W. Kelly
- Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Benjamin K. Liang
- Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Shannon J. Sirk
- Department of Bioengineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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Naderi-Samani M, Soltani M, Dadar M, Taheri-Mirghaed A, Zargar A, Ahmadivand S, Hassanzadeh R, Goudarzi LM. Oral immunization of trout fry with recombinant Lactococcus lactis NZ3900 expressing G gene of viral hemorrhagic septicaemia virus (VHSV). FISH & SHELLFISH IMMUNOLOGY 2020; 105:62-70. [PMID: 32645516 DOI: 10.1016/j.fsi.2020.07.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/29/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
This study has investigated the ability of Lactococcus lactic (NZ3900) carried G gene of viral haemorrhagic septicaemia virus (VHSV) under nisin-controlled gene expression (NICE) system in rainbow trout (O.Mykiss). Two groups of trout fry (7 ± 0.65 g) were immunized with 1 × 1010 cfu/g and 1 × 108 cfu/g recombinant L. lactis NZ3900, two groups of fish were fed 1 × 1010 cfu/g and 1 × 108 cfu/g L. lactis vector free, and one group was fed by the basal diet as a control. Oral immunization was done on days 1-7 and boosting was performed on days 15-21. The relative expression of IFN-1 and MX-1 genes significantly increased in head kidney of vaccinated fish depend on vaccine dosage compared to the control group. Fish in vaccinated group also showed elevated VHSV-specific antibody levels compared to the control groups. Relative percent survival (RPS), under virulent isolate VHSV challenge were estimated 62%, 78% for 108 cfu/g 1010 cfu/g feed vaccinated groups 21 days post-vaccination, while groups fed similar doses of L. lactis vector free illustrated 22% and 27% RPSs, respectively. The significant reduction of viral loads (transcript levels of N gene) were detected in the immunized groups. Increased weight gain and decreased feed consumption in vaccinated group attributed to the probiotic effect were also observed. In conclusion, our results demonstrate the ability of recombinant L. lactis as oral vaccine against VHS in rainbow trout, which can be considered as effective method against different fish pathogens.
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Affiliation(s)
- Mahsa Naderi-Samani
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mehdi Soltani
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Perth, Australia.
| | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Ali Taheri-Mirghaed
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Ashkan Zargar
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Sohrab Ahmadivand
- Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Reza Hassanzadeh
- Iranian Veterinary Organization, Central Veterinary Laboratory, Tehran, Iran
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Cloning and functional expression of a food-grade circular bacteriocin, plantacyclin B21AG, in probiotic Lactobacillus plantarum WCFS1. PLoS One 2020; 15:e0232806. [PMID: 32785265 PMCID: PMC7423119 DOI: 10.1371/journal.pone.0232806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 07/27/2020] [Indexed: 12/01/2022] Open
Abstract
There is an increasing consumer demand for minimally processed, preservative free and microbiologically safe food. These factors, combined with risks of antibiotic resistance, have led to interest in bacteriocins produced by lactic acid bacteria (LAB) as natural food preservatives and as potential protein therapeutics. We previously reported the discovery of plantacyclin B21AG, a circular bacteriocin produced by Lactobacillus plantarum B21. Here, we describe the cloning and functional expression of the bacteriocin gene cluster in the probiotic Lactobacillus plantarum WCFS1. Genome sequencing demonstrated that the bacteriocin is encoded on a 20 kb native plasmid, designated as pB21AG01. Seven open reading frames (ORFs) putatively involved in bacteriocin production, secretion and immunity were cloned into an E. coli/Lactobacillus shuttle vector, pTRKH2. The resulting plasmid, pCycB21, was transformed into L. plantarum WCFS1. The cell free supernatants (CFS) of both B21 and WCFS1 (pCycB21) showed an antimicrobial activity of 800 AU/mL when tested against WCFS1 (pTRKH2) as the indicator strain, showing that functional expression of plantacyclin B21AG had been achieved. Real-time PCR analysis revealed that the relative copy number of pB21AG01 was 7.60 ± 0.79 in L. plantarum B21 whilst pCycB21 and pTRKH2 was 0.51 ± 0.05 and 25.19 ± 2.68 copies respectively in WCFS1. This indicates that the bacteriocin gene cluster is located on a highly stable low copy number plasmid pB21AG01 in L. plantarum B21. Inclusion of the native promoter for the bacteriocin operon from pB21AG01 results in similar killing activity being observed in both the wild type and recombinant hosts despite the lower copy number of pCycB21.
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Sha Z, Shang H, Miao Y, Huang J, Niu X, Chen R, Hu L, Huang H, Wei K, Zhu R. Recombinant Lactococcus Lactis Expressing M1-HA2 Fusion Protein Provides Protective Mucosal Immunity Against H9N2 Avian Influenza Virus in Chickens. Front Vet Sci 2020; 7:153. [PMID: 32266297 PMCID: PMC7105734 DOI: 10.3389/fvets.2020.00153] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/03/2020] [Indexed: 01/16/2023] Open
Abstract
H9N2 subtype low pathogenicity avian influenza virus (LPAIV) is distributed worldwide and causes enormous economic losses in the poultry industry. Despite immunization of almost all chickens with inactivated vaccines, the disease still remains widespread. We speculated that improving mucosal or cellular immune responses could contribute to improved control of H9N2 viruses. In this study, we constructed a novel Lactococcus lactis (L. lactis) strain expressing a recombinant fusion protein consisting of the M1 and HA2 proteins derived from an antigenically conserved endemic H9N2 virus strain. The M1-HA2 fusion protein was cloned downstream of a gene encoding a secretory peptide, and we subsequently confirmed that the fusion protein was secreted from L. lactis by Western blotting. We assessed the immunogenicity and protective effects of this recombinant L. lactis strain. Eighty 1-day-old chickens were divided into four groups, and the experimental groups were orally vaccinated twice with the recombinant L. lactis strain. Fecal and intestinal samples, sera, and bronchoalveolar lavage fluid were collected at 7, 14, and 21 days post-vaccination (dpv). Chickens vaccinated with the recombinant L. lactis strain showed significantly increased levels of serum antibodies, T cell-mediated immune responses, and mucosal secretory IgA (SIgA). Following challenge with H9N2 virus at 21 dpv, chickens vaccinated with the recombinant L. lactis strain showed decreased weight loss, lower viral titers in the lung, and reduced lung pathological damage. In summary, our results demonstrated that a recombinant L. lactis strain expressing an H9N2 M1-HA2 fusion protein could induce protective mucosal and systemic immunity. This oral vaccine is H9N2 virus-specific and represents a significant design improvement compared with previous studies. Our study provides a theoretical basis for improving mucosal immune responses to prevent and control H9N2 virus infection.
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Affiliation(s)
- Zhou Sha
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Hongqi Shang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Yongqiang Miao
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Jin Huang
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Xiangyun Niu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Ruichang Chen
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Liping Hu
- Animal Disease Prevention and Control Center of Shandong Province, Animal Husbandry and Veterinary Bureau of Shandong Province, Jinan, China
| | - He Huang
- Shandong New Hope Liuhe Co., Ltd, New Hope Group, Qingdao, China
| | - Kai Wei
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Ruiliang Zhu
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
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12
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Bai Y, Wang G, Qi H, Wang Y, Xu C, Yue L, Hou X, Yu L. Immunogenicity of 987P fimbriae of enterotoxigenic Escherichia coli surface-displayed on Lactobacillus casei. Res Vet Sci 2020; 128:308-314. [DOI: 10.1016/j.rvsc.2019.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 12/10/2019] [Accepted: 12/22/2019] [Indexed: 12/27/2022]
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13
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Gunasekaran B, Gothandam KM. A review on edible vaccines and their prospects. ACTA ACUST UNITED AC 2020; 53:e8749. [PMID: 31994600 PMCID: PMC6984374 DOI: 10.1590/1414-431x20198749] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 11/04/2019] [Indexed: 01/07/2023]
Abstract
For a long time, vaccines have been the main mode of defense and protection against several bacterial, viral, and parasitic diseases. However, the process of production and purification makes them expensive and unaffordable to many developing nations. An edible vaccine is when the antigen is expressed in the edible part of the plant. This reduces the cost of production of the vaccine because of ease of culturing. In this article, various types of edible vaccines that include algal and probiotics in addition to plants are discussed. Various diseases against which research has been carried out are also reviewed. This article focused on the conception of edible vaccines highlighting the various ways by which vaccines can be delivered.
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Affiliation(s)
- B Gunasekaran
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - K M Gothandam
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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14
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Wang S, Geng N, Zhou D, Qu Y, Shi M, Xu Y, Liu K, Liu Y, Liu J. Oral Immunization of Chickens With Recombinant Lactobacillus plantarum Vaccine Against Early ALV-J Infection. Front Immunol 2019; 10:2299. [PMID: 31632395 PMCID: PMC6783503 DOI: 10.3389/fimmu.2019.02299] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 09/11/2019] [Indexed: 12/15/2022] Open
Abstract
In this study, a novel oral vaccine of recombinant Lactobacillus plantarum (L. plantarum) containing the gp85 protein was explored, and the effects of this vaccine on the prevention of subgroup J Avian Leukosis Virus (ALV-J) infection were assessed. In the current study, the gp85 protein of ALV-J was expressed on the surface of L. plantarum with the surface-display motif, pgsA, by constructing a shuttle vector pMG36e:pgsA:gp85. Surface localization of the fusion protein was verified by western blotting and flow cytometry. Subsequently, Specific Pathogen Free Hy-Line Brown layer chickens were orally vaccinated with the recombinant L. plantarum and presented with high levels of serum immunoglobulin G (IgG) and secretory immunoglobulin A (sIgA) titers in bile and duodenal-mucosal fluid. After challenged with ALV-J of a 3 × 103 50% tissue culture infective dose (TCID50), serum samples of the chickens were collected and viremia was analyzed. Results showed that, compared to the L. plantarum and PBS control group, the recombinant L. plantarum group showed a significant rise in antibody levels after inoculation, and provide improved protection against ALV-J according to viremia detection. These results indicate that oral immunization with the recombinant L. plantarum provided an effective means for eliciting protective immune response against early ALV-J infection.
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Affiliation(s)
- Shenghua Wang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China.,Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Shandong Agricultural University, Tai'an, China
| | - Na Geng
- Research Center for Animal Disease Control Engineering, Shandong Agricultural University, Tai'an, China
| | - Dong Zhou
- College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, China
| | - Yi Qu
- Nanjing Entry-Exit Inspection and Quarantine Bureau, Nanjing, China
| | - Mengke Shi
- Research Center for Animal Disease Control Engineering, Shandong Agricultural University, Tai'an, China
| | - Yuliang Xu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - Kangping Liu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - Yongxia Liu
- Research Center for Animal Disease Control Engineering, Shandong Agricultural University, Tai'an, China
| | - Jianzhu Liu
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
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15
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López-Santiago R, Sánchez-Argáez AB, De Alba-Núñez LG, Baltierra-Uribe SL, Moreno-Lafont MC. Immune Response to Mucosal Brucella Infection. Front Immunol 2019; 10:1759. [PMID: 31481953 PMCID: PMC6710357 DOI: 10.3389/fimmu.2019.01759] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/11/2019] [Indexed: 01/18/2023] Open
Abstract
Brucellosis is one of the most prevalent bacterial zoonosis of worldwide distribution. The disease is caused by Brucella spp., facultative intracellular pathogens. Brucellosis in animals results in abortion of fetuses, while in humans, it frequently manifests flu-like symptoms and a typical undulant fever, being osteoarthritis a common complication of the chronic infection. The two most common ways to acquire the infection in humans are through the ingestion of contaminated dairy products or by inhalation of contaminated aerosols. Brucella spp. enter the body mainly through the gastrointestinal and respiratory mucosa; however, most studies of immune response to Brucella spp. are performed analyzing models of systemic immunity. It is necessary to better understand the mucosal immune response induced by Brucella infection since this is the main entry site for the bacterium. In this review, some virulence factors and the mechanisms needed for pathogen invasion and persistence are discussed. Furthermore, some aspects of local immune responses induced during Brucella infection will be reviewed. With this knowledge, better vaccines can be designed focused on inducing protective mucosal immune response.
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Affiliation(s)
- Rubén López-Santiago
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Ana Beatriz Sánchez-Argáez
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Liliana Gabriela De Alba-Núñez
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | | | - Martha Cecilia Moreno-Lafont
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
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16
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Ma S, Qiao X, Xu Y, Wang L, Zhou H, Jiang Y, Cui W, Huang X, Wang X, Tang L, Li Y. Screening and Identification of a Chicken Dendritic Cell Binding Peptide by Using a Phage Display Library. Front Immunol 2019; 10:1853. [PMID: 31447851 PMCID: PMC6691127 DOI: 10.3389/fimmu.2019.01853] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/23/2019] [Indexed: 12/24/2022] Open
Abstract
Dendritic cells (DCs), as antigen-presenting cells, can initiate adaptive immune responses efficiently. Although the DC-targeting strategy has attracted more attention, relevant studies on chicken are rare. Here, specific chicken bone marrow DC-binding peptides were selected using a phage display peptide library and confirmed through ELISA, flow cytometry, fluorescence microscopy, and laser confocal microscopy. The peptide candidate SPHLHTSSPWER, named SP, was fused to the infectious bursal disease virus (IBDV) structural protein and protective antigen VP2. In vitro, the expression of DC markers (CD80, CD83, CD86, DEC205, and MHCII) and some cytokines (IFN-γ, IL-12, TNF-α, IL-1β, IL-6, and CXCLi1) by VP2-SP-stimulated DCs was significantly higher than that by DCs treated with the VP2-control peptide at 4 h (p < 0.001). In addition, an oral vaccine targeting DCs was generated using chicken-borne Lactobacillus saerimneri M11 (L. sae M11) to deliver VP2 fused with SP. Anti-IBDV mucosal and humoral immune responses were induced efficiently via oral administration, resulting in higher protective efficacy in the VP2-SP group than the VP2 group. Therefore, chicken DC targeting of IBDV protective antigen VP2 delivered by L. sae provides effective immune protection in chicken. Our study may promote research on the DC-targeting strategy to enhance the effectiveness of chicken vaccines.
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Affiliation(s)
- Sunting Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China.,Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Xinyuan Qiao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Yigang Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Li Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Han Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yanping Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Wen Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xuewei Huang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xiaona Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Lijie Tang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Yijing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
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Complete Genome Sequence of Lactobacillus johnsonii Strain Byun-jo-01, Isolated from the Murine Gastrointestinal Tract. Microbiol Resour Announc 2018; 7:MRA00985-18. [PMID: 30533732 PMCID: PMC6256439 DOI: 10.1128/mra.00985-18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 09/14/2018] [Indexed: 11/22/2022] Open
Abstract
We report here the complete genome sequence of Lactobacillus johnsonii strain Byun-jo-01, which was isolated from the murine gastrointestinal tract. The genome was determined using both PacBio and Illumina sequencing. We report here the complete genome sequence of Lactobacillus johnsonii strain Byun-jo-01, which was isolated from the murine gastrointestinal tract. The genome was determined using both PacBio and Illumina sequencing. L. johnsonii strain Byun-jo-01 contains a single circular chromosome of 1,959,519 bp, and its GC content is 34.7%.
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18
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M cell-targeting strategy enhances systemic and mucosal immune responses induced by oral administration of nuclease-producing L. lactis. Appl Microbiol Biotechnol 2018; 102:10703-10711. [PMID: 30310964 DOI: 10.1007/s00253-018-9427-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/12/2018] [Accepted: 09/19/2018] [Indexed: 12/31/2022]
Abstract
Efficient delivery of antigens to the gut-associated lymphoid tissue (GALT) is the most critical step for the induction of mucosal immunity by oral vaccines. As M cells are the main portal for luminal antigens into the GALT, the M cell-targeting of antigens affords a promising strategy toward the development of effective oral vaccines. Lactococcus lactis is a fascinating recombinant host for oral vaccines, as they survive and produce antigens in the gut and have a particularly safe profile for human use. In this study, we developed and evaluated an M cell-targeting oral immunization system using recombinant L. lactis strains. For the purpose, we generated an L. lactis strain that secretes a model antigen fused with the OmpH β1α1 domain of Yersinia enterocolitica, which has been shown to bind to a complement C5a receptor on the M cell surface. As the model antigen, Staphylococcus aureus nuclease was used for fusion, resulting in L. lactis-expressing Nuc-OmpH (LL/Nuc-OmpH). Ex vivo intestinal loop assays showed that the amount of Nuc-OmpH taken up into Peyer's patches was more than that of the unfused nuclease (Nuc). In addition, oral administration of the recombinant L. lactis strains to mice demonstrated that LL/Nuc-OmpH-induced nuclease-specific fecal IgA and serum IgG titers were significantly higher than those induced by LL/Nuc. These results indicate that OmpH works as an M cell-targeting molecule when fused with antigens secreted from L. lactis and that the M cell-targeting strategy affords a promising platform for L. lactis-based mucosal immunization.
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19
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Rashmi BS, Gayathri D. Molecular characterization of gluten hydrolysing Bacillus sp. and their efficacy and biotherapeutic potential as probiotics using Caco-2 cell line. J Appl Microbiol 2017. [PMID: 28637081 DOI: 10.1111/jam.13517] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AIM To isolate and characterize indigenous gluten hydrolysing bacteria from wheat sourdough and curd samples and further evaluation of their probiotic potentiality. METHODS AND RESULTS Indigenous gluten hydrolysing isolates GS 33, GS 143, GS 181 and GS 188 were identified as Bacillus sp. by molecular-typing methods and studied extensively for their functional and probiotic attributes. All the tested isolates could survive at pH 2 and toxicity of 0·3% bile and also exhibited cell surface hydrophobicity and autoaggregation phenotype. The isolates were adhered strongly to Caco-2 cells and coaggregated with Escherichia coli MTCC 433 and Listeria monocytogenes MTCC 1143 preventing pathogen invasion into Caco-2 cells in vitro. In addition, the minimum inhibitory concentration of selected antibiotics for all the investigated gluten hydrolysing isolates was within the breakpoint values as recommended by the European Food Safety Authority. CONCLUSION The indigenous high intensity gluten hydrolysing bacteria exhibited high resistance to gastric and pancreatic stress and possessed antibacterial, aggregation, adhesion and pathogen exclusion properties, and as a potential probiotics, either alone or in consortium would be useful in the development of gluten-free wheat foods. SIGNIFICANCE AND IMPACT OF THE STUDY Exploring new indigenous gluten hydrolysing bacteria from wheat sourdough and curd samples would be beneficial in developing gluten-free wheat foods using potential indigenous probiotics.
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Affiliation(s)
- B S Rashmi
- Department of Microbiology, Davangere University, Davangere, Karnataka, India
| | - D Gayathri
- Department of Microbiology, Davangere University, Davangere, Karnataka, India
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20
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Szatraj K, Szczepankowska AK, Chmielewska-Jeznach M. Lactic acid bacteria - promising vaccine vectors: possibilities, limitations, doubts. J Appl Microbiol 2017; 123:325-339. [PMID: 28295939 PMCID: PMC7166332 DOI: 10.1111/jam.13446] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 02/16/2017] [Accepted: 03/03/2017] [Indexed: 01/18/2023]
Abstract
Gram‐positive, nonpathogenic lactic acid bacteria (LAB) are considered to be promising candidates for the development of novel, safe production and delivery systems of heterologous proteins. Recombinant LAB strains were shown to elicit specific systemic and mucosal immune responses against selected antigens. For this reason, this group of bacteria is considered as a potential replacement of classical, often pathogenic, attenuated microbial carriers. Mucosal administration of recombinant LAB, especially via the best explored and universal oral route, offers many advantages in comparison to systemic inoculation, and is attractive from the immunological and practical point of view. Research aimed at designing efficient, mucosally applied vaccines in combination with improved immunization efficiency, monitoring of in vivo antigen production, determination of optimal dose for vaccination, strain selection and characterization is a priority in modern vaccinology. This paper summarizes and organizes the available knowledge on the application of LAB as live oral vaccine vectors. It constitutes a valuable source of general information for researchers interested in mucosal vaccine development and constructing LAB strains with vaccine potential.
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Affiliation(s)
- K Szatraj
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - A K Szczepankowska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - M Chmielewska-Jeznach
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
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21
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Song AAL, In LLA, Lim SHE, Rahim RA. A review on Lactococcus lactis: from food to factory. Microb Cell Fact 2017; 16:55. [PMID: 28376880 PMCID: PMC5379754 DOI: 10.1186/s12934-017-0669-x] [Citation(s) in RCA: 184] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 03/28/2017] [Indexed: 02/08/2023] Open
Abstract
Lactococcus lactis has progressed a long way since its discovery and initial use in dairy product fermentation, to its present biotechnological applications in genetic engineering for the production of various recombinant proteins and metabolites that transcends the heterologous species barrier. Key desirable features of this gram-positive lactic acid non-colonizing gut bacteria include its generally recognized as safe (GRAS) status, probiotic properties, the absence of inclusion bodies and endotoxins, surface display and extracellular secretion technology, and a diverse selection of cloning and inducible expression vectors. This have made L. lactis a desirable and promising host on par with other well established model bacterial or yeast systems such as Escherichia coli, Saccharomyces [corrected] cerevisiae and Bacillus subtilis. In this article, we review recent technological advancements, challenges, future prospects and current diversified examples on the use of L. lactis as a microbial cell factory. Additionally, we will also highlight latest medical-based applications involving whole-cell L. lactis as a live delivery vector for the administration of therapeutics against both communicable and non-communicable diseases.
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Affiliation(s)
- Adelene Ai-Lian Song
- Department of Microbiology, Faculty of Biotechnology & Biomolecular Sciences, University Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Lionel L A In
- Functional Food Research Group, Department of Biotechnology, Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Swee Hua Erin Lim
- Perdana University-Royal College of Surgeons in Ireland, Perdana University, Block B and D, MAEPS Building, MARDI Complex, Jalan MAEPS Perdana, 43400, Serdang, Selangor, Malaysia
| | - Raha Abdul Rahim
- Department of Cell & Molecular Biology, Faculty of Biotechnology & Biomolecular Sciences, University Putra Malaysia, Serdang, Selangor, Malaysia
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Yang G, Yao J, Yang W, Jiang Y, Du J, Huang H, Gu W, Hu J, Ye L, Shi C, Shan B, Wang C. Construction and immunological evaluation of recombinant Lactobacillus plantarum expressing SO7 of Eimeria tenella fusion DC-targeting peptide. Vet Parasitol 2017; 236:7-13. [DOI: 10.1016/j.vetpar.2017.01.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 01/21/2017] [Accepted: 01/23/2017] [Indexed: 01/06/2023]
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23
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Surface display on lactic acid bacteria without genetic modification: strategies and applications. Appl Microbiol Biotechnol 2016; 100:9407-9421. [DOI: 10.1007/s00253-016-7842-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 08/31/2016] [Accepted: 09/03/2016] [Indexed: 12/21/2022]
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Abstract
Probiotics are live micro-organisms that confer a health benefit to the host by providing both a nutritional benefit and protection against pathogens. This is a review of the present state of knowledge concerning probiotics, with emphasis on the criteria used for selection and clinical evidence of their beneficial effects.
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Affiliation(s)
- J.L. Balcázar
- Department of Animal Pathology, University of Zaragoza, c/. Miguel Servet 177, Zaragoza 50013, Spain
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25
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Teh BS, Apel J, Shao Y, Boland W. Colonization of the Intestinal Tract of the Polyphagous Pest Spodoptera littoralis with the GFP-Tagged Indigenous Gut Bacterium Enterococcus mundtii. Front Microbiol 2016; 7:928. [PMID: 27379058 PMCID: PMC4906056 DOI: 10.3389/fmicb.2016.00928] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 05/31/2016] [Indexed: 11/16/2022] Open
Abstract
The alkaline gut of Lepidopterans plays a crucial role in shaping communities of bacteria. Enterococcus mundtii has emerged as one of the predominant gut microorganisms in the gastrointestinal tract of the major agricultural pest, Spodoptera littoralis. Therefore, it was selected as a model bacterium to study its adaptation to harsh alkaline gut conditions in its host insect throughout different stages of development (larvae, pupae, adults, and eggs). To date, the mechanism of bacterial survival in insects' intestinal tract has been unknown. Therefore, we have engineered a GFP-tagged species of bacteria, E. mundtii, to track how it colonizes the intestine of S. littoralis. Three promoters of different strengths were used to control the expression of GFP in E. mundtii. The promoter ermB was the most effective, exhibiting the highest GFP fluorescence intensity, and hence was chosen as our main construct. Our data show that the engineered fluorescent bacteria survived and proliferated in the intestinal tract of the insect at all life stages for up to the second generation following ingestion.
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Affiliation(s)
- Beng-Soon Teh
- Department of Bioorganic Chemistry, Max Planck Institute for Chemical Ecology Jena, Germany
| | - Johanna Apel
- Clinic for Internal Medicine II, Department of Haematology and Medical Oncology University Hospital Jena, Germany
| | - Yongqi Shao
- Laboratory of Invertebrate Pathology, College of Animal Sciences, Zhejiang University Hangzhou, China
| | - Wilhelm Boland
- Department of Bioorganic Chemistry, Max Planck Institute for Chemical Ecology Jena, Germany
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Application of anhydrobiosis and dehydration of yeasts for non-conventional biotechnological goals. World J Microbiol Biotechnol 2016; 32:104. [PMID: 27116970 DOI: 10.1007/s11274-016-2058-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/22/2016] [Indexed: 01/27/2023]
Abstract
Dehydration of yeast cells causes them to enter a state of anhydrobiosis in which their metabolism is temporarily and reversibly suspended. This unique state among organisms is currently used in the production of active dry yeasts, mainly used in baking and winemaking. In recent decades non-conventional applications of yeast dehydration have been proposed for various modern biotechnologies. This mini-review briefly summarises current information on the application of dry yeasts in traditional and innovative fields. It has been shown that dry yeast preparations can be used for the efficient protection, purification and bioremediation of the environment from heavy metals. The high sorption activity of dehydrated yeasts can be used as an interesting tool in winemaking due to their effects on quality and taste. Dry yeasts are also used in agricultural animal feed. Another interesting application of yeast dehydration is as an additional stage in new methods for the stable immobilisation of microorganisms, especially in cases when biotechnologically important strains have no affinity with the carrier. Such immobilisation methods also provide a new approach for the successful conservation of yeast strains that are very sensitive to dehydration. In addition, the application of dehydration procedures opens up new possibilities for the use of yeast as a model system. Separate sections of this review also discuss possible uses of dry yeasts in biocontrol, bioprotection and biotransformations, in analytical methods as well as in some other areas.
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27
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Mokoena MP, Mutanda T, Olaniran AO. Perspectives on the probiotic potential of lactic acid bacteria from African traditional fermented foods and beverages. Food Nutr Res 2016; 60:29630. [PMID: 26960543 PMCID: PMC4785221 DOI: 10.3402/fnr.v60.29630] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 01/07/2016] [Accepted: 01/07/2016] [Indexed: 12/27/2022] Open
Abstract
Diverse African traditional fermented foods and beverages, produced using different types of fermentation, have been used since antiquity because of their numerous nutritional values. Lactic acid bacteria (LAB) isolated from these products have emerged as a welcome source of antimicrobials and therapeutics, and are accepted as probiotics. Probiotics are defined as live microbial food supplements which beneficially affect the host by improving the intestinal microbial balance. Currently, popular probiotics are derived from fermented milk products. However, with the growing number of consumers with lactose intolerance that are affected by dietary cholesterol from milk products, there is a growing global interest in probiotics from other food sources. The focus of this review is to provide an overview of recent developments on the applications of probiotic LAB globally, and to specifically highlight the suitability of African fermented foods and beverages as a viable source of novel probiotics.
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Affiliation(s)
- Mduduzi Paul Mokoena
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Durban, South Africa;
| | - Taurai Mutanda
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Durban, South Africa
| | - Ademola O Olaniran
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal (Westville Campus), Durban, South Africa
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28
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S-layer production by Lactobacillus acidophilus IBB 801 under environmental stress conditions. Appl Microbiol Biotechnol 2016; 100:4573-83. [DOI: 10.1007/s00253-016-7355-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/17/2016] [Accepted: 01/23/2016] [Indexed: 10/22/2022]
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29
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Abstract
Oral vaccines are easier to administer than injectable vaccines. To induce an adequate immune response using vaccines, antigenic proteins are usually combined with adjuvant materials. This chapter presents methodologies for the design of oral vaccines using molecular display technology. In molecular display technology, antigenic proteins are displayed on a microbial cell surface with adjuvant ability. This technology would provide a quite convenient process to produce oral vaccines when the DNA sequence of an efficient antigenic protein is available. As an example, oral vaccines against candidiasis were introduced using two different molecular display systems with Saccharomyces cerevisiae and Lactobacillus casei.
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30
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Ma BC, Yang X, Wang HN, Cao HP, Xu PW, Ding MD, Liu H. Characterization of a new Lactobacillus salivarius strain engineered to express IBV multi-epitope antigens by chromosomal integration. Biosci Biotechnol Biochem 2015; 80:574-83. [PMID: 26618736 DOI: 10.1080/09168451.2015.1101330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To obtain adhesive and safe lactic acid bacteria (LAB) strains for expressing heterologous antigens, we screened LAB inhabitants in intestine of Tibetan chickens by analyzing their adhesion and safety properties and the selected LAB was engineered to express heterologous antigen (UTEpi C-A) based on chromosomal integration strategy. We demonstrated that a new Lactobacillu salivarius TCMM17 strain is strongly adhesive to chicken intestinal epithelial cells, contains no endogenous plasmids, is susceptible to tested antimicrobials, and shows no toxicities. In order to examine the potential of TCMM17 strain as heterogenous antigen delivering vehicle, we introduced a UTEpi C-A expression cassette in its chromosome by constructing a non-replicative plasmid (pORI280-UUTEpi C-AD). The recombinant TCMM17 strain (∆TCMM17) stably was found to keep the gene cassette through 50 generations, and successfully displayed EpiC encoded by the cassette on its surface. This work provides a universal platform for development of novel oral vaccines and expression of further antigens of avian pathogens.
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Affiliation(s)
- Bing-cun Ma
- a Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, ''985 Project'' Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment , School of Life Science, Sichuan University, Ministry of Education , Chengdu , China
| | - Xin Yang
- a Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, ''985 Project'' Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment , School of Life Science, Sichuan University, Ministry of Education , Chengdu , China
| | - Hong-ning Wang
- a Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, ''985 Project'' Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment , School of Life Science, Sichuan University, Ministry of Education , Chengdu , China
| | - Hai-peng Cao
- a Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, ''985 Project'' Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment , School of Life Science, Sichuan University, Ministry of Education , Chengdu , China
| | - Peng-wei Xu
- a Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, ''985 Project'' Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment , School of Life Science, Sichuan University, Ministry of Education , Chengdu , China
| | - Meng-die Ding
- a Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, ''985 Project'' Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment , School of Life Science, Sichuan University, Ministry of Education , Chengdu , China
| | - Hui Liu
- a Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, ''985 Project'' Science Innovative Platform for Resource and Environment Protection of Southwestern, Key Laboratory of Bio-resources and Eco-environment , School of Life Science, Sichuan University, Ministry of Education , Chengdu , China
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Al Hafid N, Christodoulou J. Phenylketonuria: a review of current and future treatments. Transl Pediatr 2015; 4:304-17. [PMID: 26835392 PMCID: PMC4728993 DOI: 10.3978/j.issn.2224-4336.2015.10.07] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 10/26/2015] [Indexed: 01/16/2023] Open
Abstract
Phenylketonuria (PKU) is an autosomal recessive inborn error of metabolism caused by a deficiency in the hepatic enzyme phenylalanine hydroxylase (PAH). If left untreated, the main clinical feature is intellectual disability. Treatment, which includes a low Phe diet supplemented with amino acid formulas, commences soon after diagnosis within the first weeks of life. Although dietary treatment has been successful in preventing intellectual disability in early treated PKU patients, there are major issues with dietary compliance due to palatability of the diet. Other potential issues associated with dietary therapy include nutritional deficiencies especially vitamin D and B12. Suboptimal outcomes in cognitive and executive functioning have been reported in patients who adhere poorly to dietary therapy. There have been continuous attempts at improving the quality of medical foods including their palatability. Advances in dietary therapy such as the use of large neutral amino acids (LNAA) and glycomacropeptides (GMP; found within the whey fraction of bovine milk) have been explored. Gene therapy and enzyme replacement or substitution therapy have yielded more promising data in the recent years. In this review the current and possible future treatments for PKU are discussed.
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Transformation Kinetics During Fermented Milk Production Using Lactobacillus Johnsonii (La1) and Streptococcus Thermophillus: A Comparison With Yogurt Inoculum. FOOD BIOPHYS 2015. [DOI: 10.1007/s11483-015-9406-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tarahomjoo S. Recent Approaches in Vaccine Development against Streptococcus pneumoniae. J Mol Microbiol Biotechnol 2014; 24:215-27. [DOI: 10.1159/000365052] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Expression of Avian Infectious Bronchitis Virus Multi-Epitope Based Peptide EpiC inLactococcus lactisfor Oral Immunization of Chickens. Biosci Biotechnol Biochem 2014; 76:1871-6. [DOI: 10.1271/bbb.120326] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Wu CM, Lin CF, Chang YC, Chung TC. Construction and Characterization of Nisin-Controlled Expression Vectors for Use inLactobacillus reuteri. Biosci Biotechnol Biochem 2014; 70:757-67. [PMID: 16636439 DOI: 10.1271/bbb.70.757] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The Nisin-controlled gene expression (NICE) system, which was discovered in Lactococcus lactis, was adapted to Lactobacillus reuteri by ligating nisA promoter (PnisA) and nisRK DNA fragments into the Escherichia coli-Lb. reuteri shuttle vector pSTE32. This chimerical plasmid (pNICE) was capable of expressing the heterologous amylase gene (amyL) under nisin induction. Optimization of induction factors for this Lb. reuteri/pNICE system, including nisin concentration (viz. 50 ng/ml), growth phase of culture at which nisin be added (viz. at the early exponential phase), and the best time for analyzing the gene product after inoculation (viz. at the 3rd h), allowed the amylase product to be expressed in high amounts, constituting up to about 18% of the total intracellular protein. Furthermore, the signal peptide (SP) of amyL gene (SPamyL) from Bacillus licheniformis was ligated to the downstream of PnisA in pNICE, upgrading this vector to a NICE-secretion (NIES) level, which was then designated pNIES (Sec+, secretion positive). Characterization of pNIES using an amyL-SPDelta gene (amyL gene lacking its SP) as a reporter revealed the 3rd h after induction as the secretion peak of this system, at which the secretion efficiency and the amount of alpha-amylase being secreted into the culture supernatant were estimated to reach 77.6% and 27.75 mg/l. Expression and secretion of AmyL products by pNIES in Lb. reuteri was also confirmed by SDS-PAGE and immunoblotting analysis.
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Affiliation(s)
- Chi-Ming Wu
- Graduate Institute of Veterinary Microbiology, National Chung-Hsing University, Taiwan, ROC
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Hiramatsu Y, Yamamoto M, Satho T, Irie K, Kai A, Uyeda S, Fukumitsu Y, Toda A, Miyata T, Miake F, Arakawa T, Kashige N. Recombinant fusion protein of cholera toxin B subunit with YVAD secreted by Lactobacillus casei inhibits lipopolysaccharide-induced caspase-1 activation and subsequent IL-1 beta secretion in Caco-2 cells. BMC Biotechnol 2014; 14:38. [PMID: 24884459 PMCID: PMC4031163 DOI: 10.1186/1472-6750-14-38] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 05/01/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Lactobacillus species are used as bacterial vectors to deliver functional peptides to the intestine because they are delivered live to the intestine, colonize the mucosal surface, and continue to produce the desired protein. Previously, we generated a recombinant Lactobacillus casei secreting the cholera toxin B subunit (CTB), which can translocate into intestinal epithelial cells (IECs) through GM1 ganglioside. Recombinant fusion proteins of CTB with functional peptides have been used as carriers for the delivery of these peptides to IECs because of the high cell permeation capacity of recombinant CTB (rCTB). However, there have been no reports of rCTB fused with peptides expressed or secreted by Lactobacillus species. In this study, we constructed L. casei secreting a recombinant fusion protein of CTB with YVAD (rCTB-YVAD). YVAD is a tetrapeptide (tyrosine-valine-alanine-aspartic acid) that specifically inhibits caspase-1, which catalyzes the production of interleukin (IL)-1β, an inflammatory cytokine, from its inactive precursor. Here, we examined whether rCTB-YVAD secreted by L. casei binds to GM1 ganglioside and inhibits caspase-1 activation in Caco-2 cells used as a model of IECs. RESULTS We constructed the rCTB-YVAD secretion vector pSCTB-YVAD by modifying the rCTB secretion vector pSCTB. L. casei secreting rCTB-YVAD was generated by transformation with pSCTB-YVAD. Both the culture supernatant of pSCTB-YVAD-transformed L. casei and purified rCTB-YVAD bound to GM1 ganglioside, as did the culture supernatant of pSCTB-transformed L. casei and purified rCTB. Interestingly, although both purified rCTB-YVAD and rCTB translocated into Caco-2 cells, regardless of lipopolysaccharide (LPS), only purified rCTB-YVAD but not rCTB inhibited LPS-induced caspase-1 activation and subsequent IL-1β secretion in Caco-2 cells, without affecting cell viability. CONCLUSIONS The rCTB protein fused to a functional peptide secreted by L. casei can bind to GM1 ganglioside, like rCTB, and recombinant YVAD secreted by L. casei may exert anti-inflammatory effects in the intestine. Therefore, rCTB secreted by L. casei has potential utility as a vector for the delivery of YVAD to IECs.
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Affiliation(s)
- Yukihiro Hiramatsu
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Masatatsu Yamamoto
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1, Sakuragaoka, Kagoshima, Japan
| | - Tomomitsu Satho
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Keiichi Irie
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Akiko Kai
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Saori Uyeda
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Yuki Fukumitsu
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Akihisa Toda
- Daiichi College of Pharmaceutical Sciences, 22-1, Tamagawa-cho, Minami-ku, Fukuoka, Japan
| | - Takeshi Miyata
- Division of Molecular Functions of Food, Department of Biochemistry and Biotechnology, Kagoshima University, 1-21-24, Korimoto, Kagoshima, Japan
| | - Fumio Miake
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
| | - Takeshi Arakawa
- Molecular Microbiology Group, Department of Tropical Infectious Diseases, COMB, Tropical Biosphere Research Center, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, Japan
- Division of Host Defense and Vaccinology, Department of Microbiology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa, Japan
| | - Nobuhiro Kashige
- Faculty of Pharmaceutical Sciences, Fukuoka University, 8-19-1, Nanakuma, Jonan-ku, Fukuoka, Japan
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Lähteinen T, Lindholm A, Rinttilä T, Junnikkala S, Kant R, Pietilä TE, Levonen K, von Ossowski I, Solano-Aguilar G, Jakava-Viljanen M, Palva A. Effect of Lactobacillus brevis ATCC 8287 as a feeding supplement on the performance and immune function of piglets. Vet Immunol Immunopathol 2014; 158:14-25. [DOI: 10.1016/j.vetimm.2013.09.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Revised: 06/11/2013] [Accepted: 09/02/2013] [Indexed: 01/13/2023]
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38
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Shin MK, Yoo HS. Animal vaccines based on orally presented yeast recombinants. Vaccine 2013; 31:4287-92. [DOI: 10.1016/j.vaccine.2013.07.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/08/2013] [Accepted: 07/13/2013] [Indexed: 11/29/2022]
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LeBlanc JG, Aubry C, Cortes-Perez NG, de Moreno de LeBlanc A, Vergnolle N, Langella P, Azevedo V, Chatel JM, Miyoshi A, Bermúdez-Humarán LG. Mucosal targeting of therapeutic molecules using genetically modified lactic acid bacteria: an update. FEMS Microbiol Lett 2013; 344:1-9. [PMID: 23600579 DOI: 10.1111/1574-6968.12159] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Accepted: 04/15/2013] [Indexed: 12/21/2022] Open
Abstract
Lactic acid bacteria (LAB) represent a heterogeneous group of microorganisms naturally present in many foods and those have proved to be effective mucosal delivery vectors. Moreover, some specific strains of LAB exert beneficial properties (known as probiotic effect) on both human and animal health. Although probiotic effects are strain-specific traits, it is theoretically possible, using genetic engineering techniques, to design strains that can exert a variety of beneficial properties. During the two past decades, a large variety of therapeutic molecules has been successfully expressed in LAB, and although this field has been largely reviewed in recent years, approximately 20 new publications appear each year. Thus, the aim of this minireview is not to extensively assess the entire literature but to update progress made within the last 2 years regarding the use of the model LAB Lactococcus lactis and certain species of lactobacilli as live recombinant vectors for the development of new safe mucosal vaccines.
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Affiliation(s)
- Jean Guy LeBlanc
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucuman, Argentina
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Asensi GF, de Sales NFF, Dutra FF, Feijó DF, Bozza MT, Ulrich RG, Miyoshi A, de Morais K, Azevedo VADC, Silva JT, Le Loir Y, Paschoalin VMF. Oral immunization with Lactococcus lactis secreting attenuated recombinant staphylococcal enterotoxin B induces a protective immune response in a murine model. Microb Cell Fact 2013; 12:32. [PMID: 23561053 PMCID: PMC3623888 DOI: 10.1186/1475-2859-12-32] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Accepted: 03/22/2013] [Indexed: 11/14/2022] Open
Abstract
Background Staphylococcus aureus is unrestrictedly found in humans and in animal species that maintain thermal homeostasis. Inadequate cleaning of processing equipment or inappropriate handling can contaminate processed food and cause severe food poisoning. Staphylococcal enterotoxin B (SEB), a potent superantigenic exotoxin, is produced by 50% of clinical isolates of S. aureus and is associated with massive food poisoning and with the induction of toxic shock syndrome. Results A gene sequence encoding a recombinant SEB (rSEB), devoid of superantigenic activity, was successfully cloned and expressed in a cytoplasmic or a secreted form in the food-grade lactic acid bacterium Lactococcus lactis. The recombinant protein detected in the cytoplasm or in the culture medium exhibited the expected molecular mass and was recognized by a SEB-polyclonal antibody. Oral immunization with the recombinant L. lactis strains induced a protective immune response in a murine model of S. aureus infection. Immunized mice survived intraperitoneal challenge with an S. aureus SEB-producer strain. Counts of S. aureus in the spleen of rSEB-immunized mice were significantly reduced. The rSEB-immunized mice showed significant titers of anti-SEB IgA and IgG in stools and serum, respectively. Both recombinant L. lactis strains were able to elicit cellular or systemic immune responses in mice, with no significant difference if rSEB was produced in its cytoplasmic or secreted form. However, recombinant L. lactis expressing the cytoplasmic rSEB increased the survival rate of the challenged mice by 43%. Conclusions These findings show the vaccine efficacy of L. lactis carrying an attenuated SEB, in a murine model, following lethal S. aureus challenge.
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Kathania M, Zadeh M, Lightfoot YL, Roman RM, Sahay B, Abbott JR, Mohamadzadeh M. Colonic immune stimulation by targeted oral vaccine. PLoS One 2013; 8:e55143. [PMID: 23383086 PMCID: PMC3559436 DOI: 10.1371/journal.pone.0055143] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 12/23/2012] [Indexed: 02/02/2023] Open
Abstract
Background Currently, sufficient data exist to support the use of lactobacilli as candidates for the development of new oral targeted vaccines. To this end, we have previously shown that Lactobacillus gasseri expressing the protective antigen (PA) component of anthrax toxin genetically fused to a dendritic cell (DC)-binding peptide (DCpep) induced efficacious humoral and T cell-mediated immune responses against Bacillus anthracis Sterne challenge. Methodology/Principal Finding In the present study, we investigated the effects of a dose dependent treatment of mice with L. gasseri expressing the PA-DCpep fusion protein on intestinal and systemic immune responses and confirmed its safety. Treatment of mice with different doses of L. gasseri expressing PA-DCpep stimulated colonic immune responses, resulting in the activation of innate immune cells, including dendritic cells, which induced robust Th1, Th17, CD4+Foxp3+ and CD8+Foxp3+ T cell immune responses. Notably, high doses of L. gasseri expressing PA-DCpep (1012 CFU) were not toxic to the mice. Treatment of mice with L. gasseri expressing PA-DCpep triggered phenotypic maturation and the release of proinflammatory cytokines by dendritic cells and macrophages. Moreover, treatment of mice with L. gasseri expressing PA-DCpep enhanced antibody immune responses, including IgA, IgG1, IgG2b, IgG2c and IgG3. L. gasseri expressing PA-DCpep also increased the gene expression of numerous pattern recognition receptors, including Toll-like receptors, C-type lectin receptors and NOD-like receptors. Conclusion/Significance These findings suggest that L. gasseri expressing PA-DCpep has substantial immunopotentiating properties, as it can induce humoral and T cell-mediated immune responses upon oral administration and may be used as a safe oral vaccine against anthrax challenge.
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Affiliation(s)
- Mahesh Kathania
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, Florida, United States of America
| | - Mojgan Zadeh
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, Florida, United States of America
| | - Yaíma L. Lightfoot
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, Florida, United States of America
| | - Robert M. Roman
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, Florida, United States of America
| | - Bikash Sahay
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, Florida, United States of America
| | - Jeffrey R. Abbott
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, Florida, United States of America
| | - Mansour Mohamadzadeh
- Department of Infectious Diseases and Pathology, University of Florida, Gainesville, Florida, United States of America
- Division of Hepatology/Gastroenterology and Nutrition, University of Florida, Gainesville, Florida, United States of America
- Department of Medicine, Emerging Pathogens Institute, University of Florida, Gainesville, Florida, United States of America
- * E-mail:
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Abstract
Live recombinant bacteria represent attractive antigen delivery systems able to induce both mucosal and systemic immune responses against heterologous antigens. The first live recombinant bacterial vectors developed were derived from attenuated pathogenic microorganisms. In addition to the difficulties often encountered in the construction of stable attenuated mutants of pathogenic organisms, attenuated pathogens may retain a residual virulence level that renders them unsuitable for the vaccination of partially immunocompetent individuals such as infants, the elderly or immunocompromised patients. As an alternative to this strategy, non-pathogenic food-grade lactic acid bacteria (LAB) maybe used as live antigen carriers. This article reviews LAB vaccines constructed using antigens other than tetanus toxin fragment C, against bacterial, viral, and parasitic infective agents, for which protection studies have been performed. The antigens utilized for the development of LAB vaccines are briefly described, along with the efficiency of these systems in protection studies. Moreover, the key factors affecting the performance of these systems are highlighted.
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Affiliation(s)
- Shirin Tarahomjoo
- Department of Biotechnology, Razi Vaccine and Serum Research Institute, Karaj 31975/148, Iran.
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Wen LJ, Hou XL, Wang GH, Yu LY, Wei XM, Liu JK, Liu Q, Wei CH. Immunization with recombinant Lactobacillus casei strains producing K99, K88 fimbrial protein protects mice against enterotoxigenic Escherichia coli. Vaccine 2012; 30:3339-49. [DOI: 10.1016/j.vaccine.2011.08.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Revised: 07/25/2011] [Accepted: 08/05/2011] [Indexed: 11/24/2022]
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Oral vaccination with Lactococcus lactis expressing the Vibrio cholerae Wzm protein to enhance mucosal and systemic immunity. Vaccine 2012; 30:3231-8. [PMID: 22426330 DOI: 10.1016/j.vaccine.2012.02.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2011] [Revised: 02/02/2012] [Accepted: 02/05/2012] [Indexed: 11/22/2022]
Abstract
A gene associated with lipopolysaccharide (LPS) transport was cloned from a local clinical Vibrio cholerae O1 strain of the Ogawa serotype by using the Lactococcus lactis nisin-controlled expression (NICE) system. The V. cholerae wzm gene, which codes for an integral membrane transporter protein, was expressed and targeted to the cytoplasmic membrane, and was crudely isolated through simple centrifugation and SDS solubilization. To examine seroreactivity of this construct, rabbits were orally fed with 10(9) cfu/ml of live, recombinant L. lactis carrying the wzm gene, induced with nisin prior to administration. Recombinant plasmids were retrieved from L. lactis cultured directly from stool samples of inoculated rabbits. Reverse-transcriptase PCR of wzm using the retrieved plasmids confirmed transcription of this gene, indicating viability and stability of the recombinants in vivo. The L. lactis-Wzm construct elicited substantial levels of IgG and sIgA, and challenge with virulent V. cholerae O1 evoked severe diarrhoea in the naive, non-immunised control group, but not in those fed with either recombinant or non-recombinant L. lactis. Oral administration with recombinant L. lactis expressing the V. cholerae wzm gene increases both systemic and mucosal immunity, whereas L. lactis itself appears capable of protecting against the diarrhoeal symptoms caused by V. cholerae. Wzm is a conserved membrane protein associated with the LPS endotoxin, and together with the food-grade L. lactis, represent an attractive target for the development of a safer, live anti-infective therapy against V. cholerae.
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Khan MW, Kale AA, Bere P, Vajjala S, Gounaris E, Pakanati KC. Microbes, intestinal inflammation and probiotics. Expert Rev Gastroenterol Hepatol 2012; 6:81-94. [PMID: 22149584 DOI: 10.1586/egh.11.94] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Inflammatory bowel disease (IBD) is known for causing disturbed homeostatic balance among the intestinal immune compartment, epithelium and microbiota. Owing to the emergence of IBD as a major cause of morbidity and mortality, great efforts have been put into understanding the sequence of intestinal inflammatory events. Intestinal macrophages and dendritic cells act in a synergistic fashion with intestinal epithelial cells and microbiota to initiate the triad that governs the intestinal immune responses (whether inflammatory or regulatory). In this review, we will discuss the interplay of intestinal epithelial cells, bacteria and the innate immune component. Moreover, whether or not genetic intervention of probiotic bacteria is a valid approach for attenuating/mitigating exaggerated inflammation and IBD will also be discussed.
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Affiliation(s)
- Mohammad W Khan
- The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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Zhao LL, Liu M, Ge JW, Qiao XY, Li YJ, Liu DQ. Expression of infectious pancreatic necrosis virus (IPNV) VP2-VP3 fusion protein in Lactobacillus casei and immunogenicity in rainbow trouts. Vaccine 2012; 30:1823-9. [PMID: 22234263 DOI: 10.1016/j.vaccine.2011.12.132] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 12/11/2011] [Accepted: 12/28/2011] [Indexed: 10/14/2022]
Abstract
Infectious pancreatic necrosis virus (IPNV) infects wild and cultured salmonids, causing high mortality in juvenile trouts and salmons. IPNV VP2-VP3 fusion gene was constructed by splicing overlap extension (SOE) PCR and inserted into Lactobacillus/Escherichia coli shuttle vectors (pPG1and pPG2) followed by transformation of Lactobacillus casei competent cell to yield two recombinant strains: Lc:PG1-VP2-VP3 (surface-displayed) and Lc:PG2-VP2-VP3 (secretory). Subsequently, juvenile rainbow trouts were inoculated with the recombinant strains via orogastric route. Our results demonstrated that Lactobacillus-derived VP2-VP3 fusion protein could induce production of serum IgM specific for IPNV with neutralizing activity in rainbow trouts. Statistical analyses of IgM levels showed that immunogenicity of Lc:PG1-VP2-VP3 was more powerful than that of Lc:PG2-VP2-VP3 (P<0.001) in rainbow trouts. This result has been confirmed by viral loads reduction analyzed by real-time RT-PCR in orogastrically immunized rainbow trouts after virus challenging. Comparing to trouts received Lactobacillus (control), rainbow trouts orogastrically dosed with Lc:PG1-VP2-VP3 resulted in ∼10-fold reduction in viral loads on day 10 post-virus challenging, and ∼4-fold did by Lc:PG2-VP2-VP3. Taken together, Lc:PG1-VP2-VP3 functions as novel mucosal vaccine against IPNV infection in rainbow trouts, which most likely come true.
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Affiliation(s)
- Li-Li Zhao
- Veterinary Microbiology Department, Veterinary Medicine College, Northeast Agricultural University, Harbin, China
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Kandasamy M, Selvakumari Jayasurya A, Moochhala S, Huat Bay B, Kun Lee Y, Mahendran R. Lactobacillus rhamnosus GG secreting an antigen and Interleukin-2 translocates across the gastrointestinal tract and induces an antigen specific immune response. Microbiol Immunol 2012; 55:704-14. [PMID: 21806675 DOI: 10.1111/j.1348-0421.2011.00370.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Lactobacillus rhamnosus strain GG (LGG) is a probiotic organism. In this present study, LGG that express the green fluorescence protein (LGG-GFP) and IL-2 and GFP as a fusion protein (LGG-IL-2-GFP) were used to examine bacterial uptake and the immune response induced by oral immunization. Using TEM to examine the intestinal tissue, the Lactobacilli were localized in M cells and in venules. After oral immunization, most of the bacteria were excreted in feces only a small fraction (0.15%) was retained in the intestine at 48 hr. However, more LGG-IL-2-GFP was found in the MLN and spleen than LGG-GFP. The loop ligation method was used to evaluate LGG uptake and both LGG-GFP and LGG-IL-2-GFP were found to translocate at the same rate. Analysis of LGG internalization in J774 macrophage cells indicated that IL-2 increased survival of LGG and this may explain the increased presence of these bacteria in the MLN for a longer period. After oral immunization, specific mucosal antibody production as well as GFP specific CTL activity was demonstrated. IL-2 co-expression with GFP further enhanced antibody production and CTL activity. In conclusion, Lactobacillus rhamnosus GG expressing an antigen could generate an effective immune response to the antigen and IL-2 improved the response generated probably by increasing LGG expressing antigen survival in immune cells.
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Affiliation(s)
- Matheswaran Kandasamy
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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48
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Min L, Li-Li Z, Jun-Wei G, Xin-Yuan Q, Yi-Jing L, Di-Qiu L. Immunogenicity of Lactobacillus-expressing VP2 and VP3 of the infectious pancreatic necrosis virus (IPNV) in rainbow trout. FISH & SHELLFISH IMMUNOLOGY 2012; 32:196-203. [PMID: 22138084 DOI: 10.1016/j.fsi.2011.11.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 11/04/2011] [Accepted: 11/18/2011] [Indexed: 05/31/2023]
Abstract
Infectious pancreatic necrosis virus (IPNV) infects salmonid fish with high mortality and causes serious economic losses to salmonid aquaculture. Lactobacillus strains have a number of properties that make them attractive candidates as delivery vehicles for the presentation to the mucosa of compounds with pharmaceutical interest, in particular vaccines. Here, Lactobacilli/Escherichia coli shuttle vector pPG1 (surface-displayed) or pPG2 (secretory) with the capsid VP2 gene inserted was transformed into Lactobacillus casei to yield two recombinant strains: Lc:PG1-VP2 and Lc:PG2-VP2, respectively. Rainbow trout immunized respectively with Lc:PG1-VP2, Lc:PG2-VP2, Lc:PG1-VP3 and Lc:PG2-VP3 elicited anti-IPNV immune responses (serum IgM) via oral route. Statistical results of serum IgM titer with neutralizing activity showed that immunogenicity of Lc:PG2-VP2 was more powerful than that of Lc:PG1-VP2 (P < 0.001), Lc:PG1-VP3 (P < 0.001) and Lc:PG2-VP3 (P < 0.001), which was confirmed by viral loads reduction analyzed by real-time RT-PCR in orally immunized rainbow trout after virus challenge. Comparing with negative control, rainbow trout orally dosed with Lc:PG2-VP2 resulted in ∼46-fold reduction in virus load on days 10 post viral challenge as well as Lc:PG1-VP2(∼20-fold), Lc:PG2-VP3(∼6-fold) and Lc:PG1-VP3(∼3-fold). Taken together, Lc:PG2-VP2 exhibited a more appropriate candidate as live bacteria vaccine against IPNV infection in rainbow trout.
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Affiliation(s)
- Liu Min
- Veterinary Microbiology Department, Veterinary Medicine College, Northeast Agricultural University, Harbin 150030, PR China
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49
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Deraz SF, El-Fawal GF, Abd-Ellatif SA, Khalil AA. Autohydrolysed Tilapia nilotica Fish Viscera as a Peptone Source in Bacteriocin Production. Indian J Microbiol 2011; 51:171-5. [PMID: 22654160 PMCID: PMC3209888 DOI: 10.1007/s12088-011-0119-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Accepted: 06/18/2010] [Indexed: 11/25/2022] Open
Abstract
Fish processing generates large amounts of solid and liquid wastes. Many different by-products have been produced from fish processing wastes. Studies on solubilization of Bolti fish (Tilapia nilotica) viscera by endogenous enzymes at different pHs are described. Hydrolysis reactions were conducted with freshly thawed viscera utilizing an initial temperature gradient and terminated at various time points by heat inactivation of the enzymes. Various peptones obtained from hydrolysed visceral homogenates of Bolti fish residues showed their suitability for promoting the growth of lactic acid bacteria (mainly Lactobacillus sake Lb 706), microorganisms with particularly complex nutritional requirements especially peptidic sources. The assay of several treatments with L. sakei Lb 706, producer of the bacteriocin sakacin A, demonstrated that optimum conditions for biomass and bacteriocin production only imply a brief autohydrolysis at room temperature. The results showed that the Bolti fish hydrolysates gave remarkable results to those found in costly commercial media, specifically recommended for culturing and large-scale production of lactic acid bacteria.
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Affiliation(s)
- Sahar F. Deraz
- Department of Protein Technology, Genetic Engineering and Biotechnology Research Institute, Mubarak City for Scientific Research and Technology Applications, Universities and Research Centers District, Borg Elarab, Alexandria, Egypt
| | - Gomaa F. El-Fawal
- Department of Protein Technology, Genetic Engineering and Biotechnology Research Institute, Mubarak City for Scientific Research and Technology Applications, Universities and Research Centers District, Borg Elarab, Alexandria, Egypt
| | - Sawsan A. Abd-Ellatif
- Department of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, Mubarak City for Scientific Research and Technology Applications, Universities and Research Centers District, Borg Elarab, Alexandria, Egypt
| | - Ashraf A. Khalil
- Department of Protein Technology, Genetic Engineering and Biotechnology Research Institute, Mubarak City for Scientific Research and Technology Applications, Universities and Research Centers District, Borg Elarab, Alexandria, Egypt
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50
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Evaluation of attractant flavours for use in oral vaccine baits for badgers (Meles meles). EUR J WILDLIFE RES 2011. [DOI: 10.1007/s10344-010-0485-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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