1
|
He G, Long H, He J, Zhu C. The Immunomodulatory Effects and Applications of Probiotic Lactiplantibacillus plantarum in Vaccine Development. Probiotics Antimicrob Proteins 2024:10.1007/s12602-024-10338-9. [PMID: 39101975 DOI: 10.1007/s12602-024-10338-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2024] [Indexed: 08/06/2024]
Abstract
Lactiplantibacillus plantarum (previously known as Lactobacillus plantarum) is a lactic acid bacterium that exists in various niches. L. plantarum is a food-grade microorganism that is commonly considered a safe and beneficial microorganism. It is widely used in food fermentation, agricultural enhancement, and environmental protection. L. plantarum is also part of the normal flora that can regulate the intestinal microflora and promote intestinal health. Some strains of L. plantarum are powerful probiotics that induce and modulate the innate and adaptive immune responses. Due to its outstanding immunoregulatory capacities, an increasing number of studies have examined the use of probiotic L. plantarum strains as natural immune adjuvants or alternative live vaccine carriers. The present review summarizes the main immunomodulatory characteristics of L. plantarum and discusses the preliminary immunological effects of L. plantarum as a vaccine adjuvant and delivery carrier. Different methods for improving the immune capacities of recombinant vector vaccines are also discussed.
Collapse
Affiliation(s)
- Guiting He
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China
| | - Huanbing Long
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China
| | - Jiarong He
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China
| | - Cuiming Zhu
- Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Hengyang, 421001, Hunan, China.
| |
Collapse
|
2
|
Xia T, Yang H, Guo Y, Guo T, Xin L, Jiang Y, Cui W, Zhou H, Qiao X, Wang X, Li J, Shan Z, Tang L, Wang L, Li Y. Human dendritic cell targeting peptide can be targeted to porcine dendritic cells to improve antigen capture efficiency to stimulate stronger immune response. Front Immunol 2022; 13:950597. [PMID: 36059519 PMCID: PMC9437479 DOI: 10.3389/fimmu.2022.950597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/22/2022] [Indexed: 11/13/2022] Open
Abstract
Dendritic cells (DCs) play a key role in the natural recognition of pathogens and subsequent activation of adaptive immune responses due to their potent antigen-presenting ability. Dendritic cell-targeting peptide (DCpep) is strongly targeted to DCs, which often express antigens, to enhance the efficacy of vaccines. Our previous study showed that recombinant Lactobacillus expressing human DCpep could significantly induce stronger immune responses than recombinant Lactobacillus without DCpep, but the mechanism remains unclear. In this study, the mechanism by which DCpep enhances the immune response against recombinant Lactobacillus was explored. Fluorescence-labeled human DCpep was synthesized to evaluate the binding ability of human DCpep to porcine monocyte-derived dendritic cells (Mo-DCs) and DCs of the small intestine. The effects of Mo-DC function induced by recombinant Lactobacillus expressing human DCpep fused with the porcine epidemic diarrhea virus (PEDV) core neutralizing epitope (COE) antigen were also investigated. The results showed that human DCpep bind to porcine DCs, but not to porcine small intestinal epithelial cells. Human DCpep can also improve the capture efficiency of recombinant Lactobacillus by Mo-DCs, promote the maturation of dendritic cells, secrete more cytokines, and enhance the ability of porcine DCs to activate T-cell proliferation. Taken together, these results promote advanced understanding of the mechanism by which DCpep enhances immune responses. We found that some DCpeps are conserved between humans and pigs, which provides a theoretical basis for the development of a DC-targeted vaccine.
Collapse
Affiliation(s)
- Tian Xia
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Huizhu Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yuyao Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Tiantian Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Lingxiang Xin
- Division of Bacterial Biologics Testing (I) China Institute of Veterinary Drug Control (IVDC), Beijing, China
| | - Yanping Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Wen Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Han Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Xinyuan Qiao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Xiaona Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Jiaxuan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Zhifu Shan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Lijie Tang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
| | - Li Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
- *Correspondence: Yijing Li, ; Li Wang,
| | - Yijing Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- China Ministry of Agriculture Key Laboratory of Animal Pathogen Biology, Northeastern Science Inspection Station, Harbin, China
- *Correspondence: Yijing Li, ; Li Wang,
| |
Collapse
|
3
|
Prado Acosta M, Goyette-Desjardins G, Scheffel J, Dudeck A, Ruland J, Lepenies B. S-Layer From Lactobacillus brevis Modulates Antigen-Presenting Cell Functions via the Mincle-Syk-Card9 Axis. Front Immunol 2021; 12:602067. [PMID: 33732234 PMCID: PMC7957004 DOI: 10.3389/fimmu.2021.602067] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 02/08/2021] [Indexed: 12/17/2022] Open
Abstract
C-type lectin receptors (CLRs) are pattern recognition receptors that are crucial in the innate immune response. The gastrointestinal tract contributes significantly to the maintenance of immune homeostasis; it is the shelter for billions of microorganisms including many genera of Lactobacillus sp. Previously, it was shown that host-CLR interactions with gut microbiota play a crucial role in this context. The Macrophage-inducible C-type lectin (Mincle) is a Syk-coupled CLR that contributes to sensing of mucosa-associated commensals. In this study, we identified Mincle as a receptor for the Surface (S)-layer of the probiotic bacteria Lactobacillus brevis modulating GM-CSF bone marrow-derived cells (BMDCs) functions. We found that the S-layer/Mincle interaction led to a balanced cytokine response in BMDCs by triggering the release of both pro- and anti-inflammatory cytokines. In contrast, BMDCs derived from Mincle−/−, CARD9−/− or conditional Syk−/− mice failed to maintain this balance, thus leading to an increased production of the pro-inflammatory cytokines TNF and IL-6, whereas the levels of the anti-inflammatory cytokines IL-10 and TGF-β were markedly decreased. Importantly, this was accompanied by an altered CD4+ T cell priming capacity of Mincle−/− BMDCs resulting in an increased CD4+ T cell IFN-γ production upon stimulation with L. brevis S-layer. Our results contribute to the understanding of how commensal bacteria regulate antigen-presenting cell (APC) functions and highlight the importance of the Mincle/Syk/Card9 axis in APCs as a key factor in host-microbiota interactions.
Collapse
Affiliation(s)
- Mariano Prado Acosta
- Research Center for Emerging Infections and Zoonoses, Institute for Immunology, University of Veterinary Medicine, Hannover, Germany
| | - Guillaume Goyette-Desjardins
- Research Center for Emerging Infections and Zoonoses, Institute for Immunology, University of Veterinary Medicine, Hannover, Germany
| | - Jörg Scheffel
- Dermatological Allergology, Allergie-Centrum-Charité, Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Anne Dudeck
- Medical Faculty, Institute for Molecular and Clinical Immunology, Otto-von-Guericke Universität Magdeburg, Magdeburg, Germany
| | - Jürgen Ruland
- School of Medicine, Institute of Clinical Chemistry and Pathobiochemistry, Technical University of Munich, Munich, Germany.,German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany.,German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Bernd Lepenies
- Research Center for Emerging Infections and Zoonoses, Institute for Immunology, University of Veterinary Medicine, Hannover, Germany
| |
Collapse
|
4
|
Mao J, Qi S, Cui Y, Dou X, Luo XM, Liu J, Zhu T, Ma Y, Wang H. Lactobacillus rhamnosus GG Attenuates Lipopolysaccharide-Induced Inflammation and Barrier Dysfunction by Regulating MAPK/NF-κB Signaling and Modulating Metabolome in the Piglet Intestine. J Nutr 2020; 150:1313-1323. [PMID: 32027752 DOI: 10.1093/jn/nxaa009] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/16/2019] [Accepted: 01/10/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Probiotic Lactobacillius rhamnosus GG (LGG) shows beneficial immunomodulation on cultured cell lines in vitro and in mouse models. OBJECTIVE The aim was to investigate the effects of LGG on intestinal injury and the underlying mechanisms by elucidating inflammatory signaling pathways and metabolomic response to LPS stimulation in the piglet intestine. METHODS Piglets (Duroc × Landrace × Large White, including males and female; 8.6 ± 1.1 kg) aged 28 d were assigned to 3 groups (n = 6/group): oral inoculation with PBS for 2 wk before intraperitoneal injection of physiological saline [control (CON)] or LPS (25 μg/kg body weight; LPS) or oral inoculation with LGG for 2 wk before intraperitoneal injection of LPS (LGG+LPS). Piglets were killed 4 h after LPS injection. Systemic inflammation, intestinal integrity, inflammation signals, and metabolomic characteristics in the intestine were determined. RESULTS Compared with CON, LPS stimulation significantly decreased ileal zonula occludens 1 (ZO-1; 44%), claudin-3 (44%), and occludin (41%) expression; increased serum diamineoxidase (73%), D-xylose (19%), TNF-α (43%), and IL-6 (55%) concentrations; induced p38 mitogen-activated protein kinase (p38 MAPK; 85%), extracellular signal-regulated kinase (ERK; 96%), and NF-κB p65 phosphorylation (37%) (P < 0.05). Compared with LPS stimulation alone, LGG pretreatment significantly enhanced the intestinal barrier by upregulating expressions of tight junction proteins (ZO-1, 73%; claudin-3, 55%; occludin, 67%), thereby decreasing serum diamineoxidase (26%) and D-xylose (28%) concentrations, and also reduced serum TNF-α expression (16%) and ileal p38 MAPK (79%), ERK (43%) and NF-κB p65 (37%) phosphorylation levels (P < 0.05). Metabolomic analysis showed clear separation between each group. The concentrations of caprylic acid [fold-change (FC) = 2.39], 1-mono-olein (FC = 2.68), erythritol (FC = 4.62), and ethanolamine (FC = 4.47) significantly increased in the intestine of LGG + LPS piglets compared with the LPS group (P < 0.05). CONCLUSIONS These data suggest that LGG alleviates gut inflammation, improves intestinal barrier function, and modulates the metabolite profile of piglets challenged with LPS. This trial was registered at the Zhejiang University (http://www.lac.zju.edu.cn) as ZJU20170529.
Collapse
Affiliation(s)
- Jiangdi Mao
- College of Animal Science, Zhejiang University, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China.,Institute of Animal Nutrition, College of Animal Science and Technology, Zhejiang A&F University, Hangzhou, China
| | - Siri Qi
- College of Animal Science, Zhejiang University, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China.,Institute of Animal Nutrition, College of Animal Science and Technology, Zhejiang A&F University, Hangzhou, China
| | - Yanjun Cui
- College of Animal Science, Zhejiang University, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China.,Institute of Animal Nutrition, College of Animal Science and Technology, Zhejiang A&F University, Hangzhou, China
| | - Xiaoxiao Dou
- Institute of Animal Nutrition, College of Animal Science and Technology, Zhejiang A&F University, Hangzhou, China
| | - Xin M Luo
- Department of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, VA, USA
| | - Jianxin Liu
- College of Animal Science, Zhejiang University, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - Tao Zhu
- College of Animal Science, Zhejiang University, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - Yanfei Ma
- College of Animal Science, Zhejiang University, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - Haifeng Wang
- College of Animal Science, Zhejiang University, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China.,Institute of Animal Nutrition, College of Animal Science and Technology, Zhejiang A&F University, Hangzhou, China
| |
Collapse
|
5
|
Xu X, Qian J, Qin L, Li J, Xue C, Ding J, Wang W, Ding W, Yin R, Jin N, Ding Z. Chimeric Newcastle Disease Virus-like Particles Containing DC-Binding Peptide-Fused Haemagglutinin Protect Chickens from Virulent Newcastle Disease Virus and H9N2 Avian Influenza Virus Challenge. Virol Sin 2020; 35:455-467. [PMID: 32274680 DOI: 10.1007/s12250-020-00199-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 11/18/2019] [Indexed: 10/24/2022] Open
Abstract
Newcastle disease virus (NDV) and H9N2 subtype Avian influenza virus (AIV) are two notorious avian respiratory pathogens that cause great losses in the poultry industry. Current inactivated commercial vaccines against NDV and AIV have the disadvantages of inadequate mucosal responses, while an attenuated live vaccine bears the risk of mutation. Dendritic cell (DC) targeting strategies are attractive for their potent mucosal and adaptive immune-stimulating ability against respiratory pathogens. In this study, DC-binding peptide (DCpep)-decorated chimeric virus-like particles (cVLPs), containing NDV haemagglutinin-neuraminidase (HN) and AIV haemagglutinin (HA), were developed as a DC-targeting mucosal vaccine candidate. DCpep-decorated cVLPs activated DCs in vitro, and induced potent immune stimulation in chickens, with enhanced secretory immunoglobulin A (sIgA) secretion and splenic T cell differentiation. 40 μg cVLPs can provide full protection against the challenge with homologous, heterologous NDV strains, and AIV H9N2. In addition, DCpep-decorated cVLPs could induce a better immune response when administered intranasally than intramuscularly, as indicated by robust sIgA secretion and a reduced virus shedding period. Taken together, this chimeric VLPs are a promising vaccine candidate to control NDV and AIV H9N2 and a useful platform bearing multivalent antigens.
Collapse
Affiliation(s)
- Xiaohong Xu
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China.,College of Basic Medical Science, Jilin University, Changchun, 130021, China
| | - Jing Qian
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences/Key Laboratory for Veterinary Bio-Product Engineering, Ministry of Agriculture, Nanjing, 210014, China
| | - Lingsong Qin
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Jindou Li
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Cong Xue
- College of Agriculture and Forestry Science, Linyi University, Linyi, 276000, China
| | - Jiaxin Ding
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Weiqi Wang
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Wei Ding
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China
| | - Renfu Yin
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China.
| | - Ningyi Jin
- College of Basic Medical Science, Jilin University, Changchun, 130021, China.
| | - Zhuang Ding
- Laboratory of Infectious Diseases, College of Veterinary Medicine, Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, 130062, China.
| |
Collapse
|
6
|
Ou B, Jiang B, Jin D, Yang Y, Zhang M, Zhang D, Zhao H, Xu M, Song H, Wu W, Chen M, Lu T, Huang J, Seo H, Garcia C, Zheng W, Guo W, Lu Y, Jiang Y, Yang S, Kaushik RS, Li X, Zhang W, Zhu G. Engineered Recombinant Escherichia coli Probiotic Strains Integrated with F4 and F18 Fimbriae Cluster Genes in the Chromosome and Their Assessment of Immunogenic Efficacy in Vivo. ACS Synth Biol 2020; 9:412-426. [PMID: 31944664 DOI: 10.1021/acssynbio.9b00430] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
F4 (K88) and F18 fimbriaed enterotoxigenic Escherichia coli (ETEC) are the predominant causes of porcine postweaning diarrhea (PWD), and vaccines are considered the most effective preventive approach against PWD. Since heterologous DNA integrated into bacterial chromosomes could be effectively expressed with stable inheritance, we chose probiotic EcNc (E. coli Nissle 1917 prototype cured of cryptic plasmids) as a delivery vector to express the heterologous F4 or both F4 and F18 fimbriae and sequentially assessed their immune efficacy of anti-F4 and F18 fimbriae in both murine and piglet models. Employing the CRISPR-cas9 technology, yjcS, pcadA, lacZ, yieN/trkD, maeB, and nth/tppB sites in the chromosome of an EcNc strain were targeted as integration sites to integrate F4 or F18 fimbriae cluster genes under the Ptet promotor to construct two recombinant integration probiotic strains (RIPSs), i.e., nth integration strain (EcNcΔnth/tppB::PtetF4) and multiple integration strain (EcNc::PtetF18x4::PtetF4x2). Expression of F4, both F4 and F18 fimbriae on the surfaces of two RIPSs, was verified with combined methods of agglutination assay, Western blot, and immunofluorescence microscopy. The recombinant strains have improved adherence to porcine intestinal epithelial cell lines. Mice and piglets immunized with the nth integration strain and multiple integration strain through gavage developed anti-F4 and both anti-F4 and anti-F18 IgG immune responses. Moreover, the serum antibodies from the immunized mice and piglets significantly inhibited the adherence of F4+ or both F4+ and F18+ ETEC wild-type strains to porcine intestinal cell lines in vitro, indicating the potential of RIPSs as promising probiotic strains plus vaccine candidates against F4+/F18+ ETEC infection.
Collapse
Affiliation(s)
- Bingming Ou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- College of Life Science, Zhaoqing University, Zhaoqing 526061, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
- Diagnostic Medicine/Pathobiology, Kansas State University College of Veterinary Medicine, Manhattan, Kansas 66506, United States
| | - Boyu Jiang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| | - Duo Jin
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| | - Ying Yang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
- College of Animal Science, Guizhou University, Guiyang 550025, China
| | - Minyu Zhang
- College of Life Science, Zhaoqing University, Zhaoqing 526061, China
| | - Dong Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| | - Haizhou Zhao
- College of Life Science, Zhaoqing University, Zhaoqing 526061, China
| | - Mengxian Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| | - Haoliang Song
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| | - Wenwen Wu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| | - Mingliang Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| | - Ti Lu
- Diagnostic Medicine/Pathobiology, Kansas State University College of Veterinary Medicine, Manhattan, Kansas 66506, United States
| | - Jiachen Huang
- Diagnostic Medicine/Pathobiology, Kansas State University College of Veterinary Medicine, Manhattan, Kansas 66506, United States
| | - Hyesuk Seo
- Diagnostic Medicine/Pathobiology, Kansas State University College of Veterinary Medicine, Manhattan, Kansas 66506, United States
- Department of Pathobiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61802, United States
| | - Carolina Garcia
- Diagnostic Medicine/Pathobiology, Kansas State University College of Veterinary Medicine, Manhattan, Kansas 66506, United States
| | - Wanglong Zheng
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
- Diagnostic Medicine/Pathobiology, Kansas State University College of Veterinary Medicine, Manhattan, Kansas 66506, United States
| | - Weiyi Guo
- College of Life Science, Zhaoqing University, Zhaoqing 526061, China
| | - Yinhua Lu
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yu Jiang
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Sheng Yang
- Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Radhey S. Kaushik
- Biology and Microbiology Department, South Dakota State University, Brookings, South Dakota 57007, United States
| | - Xinchang Li
- College of Life Science, Zhaoqing University, Zhaoqing 526061, China
| | - Weiping Zhang
- Diagnostic Medicine/Pathobiology, Kansas State University College of Veterinary Medicine, Manhattan, Kansas 66506, United States
- Department of Pathobiology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61802, United States
| | - Guoqiang Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Important Animal Infectious Diseases and Zoonoses, Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou 225009, China
| |
Collapse
|
7
|
Prado Acosta M, Geoghegan EM, Lepenies B, Ruzal S, Kielian M, Martinez MG. Surface (S) Layer Proteins of Lactobacillus acidophilus Block Virus Infection via DC-SIGN Interaction. Front Microbiol 2019; 10:810. [PMID: 31040840 PMCID: PMC6477042 DOI: 10.3389/fmicb.2019.00810] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/29/2019] [Indexed: 01/06/2023] Open
Abstract
Alphaviruses and flaviviruses are important human pathogens that include Chikungunya virus (CHIKV), Dengue virus (DENV), and Zika virus (ZIKV), which can cause diseases in humans ranging from arthralgia to hemorrhagic fevers and microcephaly. It was previously shown that treatment with surface layer (S-layer) protein, present on the bacterial cell-envelope of Lactobacillus acidophilus, is able to inhibit viral and bacterial infections by blocking the pathogen’s interaction with DC-specific intercellular adhesion molecule 3-grabbing non-integrin (DC-SIGN), a trans-membrane protein that is a C-type calcium-dependent lectin. DC-SIGN is known to act as an attachment factor for several viruses including alphaviruses and flaviviruses. In the present study, we used alphaviruses as a model system to dissect the mechanism of S-layer inhibition. We first evaluated the protective effect of S-layer using 3T3 cells, either wild type or stably expressing DC-SIGN, and infecting with the alphaviruses Semliki Forest virus (SFV) and CHIKV and the flaviviruses ZIKV and DENV. DC-SIGN expression significantly enhanced infection by all four viruses. Treatment of the cells with S-layer prior to infection decreased infectivity of all viruses only in cells expressing DC-SIGN. In vitro ELISA experiments showed a direct interaction between S-layer and DC-SIGN; however, confocal microscopy and flow cytometry demonstrated that S-layer binding to the cells was independent of DC-SIGN expression. S-layer protein prevented SFV binding and internalization in DC-SIGN-expressing cells but had no effect on virus binding to DC-SIGN-negative cells. Inhibition of virus binding occurred in a time-dependent manner, with a significant reduction of infection requiring at least a 30-min pre-incubation of S-layer with DC-SIGN-expressing cells. These results suggest that S-layer has a different mechanism of action compared to mannan, a common DC-SIGN-binding compound that has an immediate effect in blocking viral infection. This difference could reflect slower kinetics of S-layer binding to the DC-SIGN present at the plasma membrane (PM). Alternatively, the S-layer/DC-SIGN interaction may trigger the activation of signaling pathways that are required for the inhibition of viral infection. Together our results add important information relevant to the potential use of L. acidophilus S-layer protein as an antiviral therapy.
Collapse
Affiliation(s)
- Mariano Prado Acosta
- Laboratorio de Bacterias Gram Positivas, Departamento de Química Biológica-IQUIBICEN, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina.,Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, United States
| | - Eileen M Geoghegan
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, United States
| | - Bernd Lepenies
- Immunology Unit and Research Center for Emerging Infections and Zoonosis, University of Veterinary Medicine Hannover, Hanover, Germany
| | - Sandra Ruzal
- Laboratorio de Bacterias Gram Positivas, Departamento de Química Biológica-IQUIBICEN, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina
| | - Margaret Kielian
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, United States
| | | |
Collapse
|
8
|
Jin YB, Yang WT, Shi CW, Feng B, Huang KY, Zhao GX, Li QY, Xie J, Huang HB, Jiang YL, Wang JZ, Wang G, Kang YH, Yang GL, Wang CF. Immune responses induced by recombinant Lactobacillus plantarum expressing the spike protein derived from transmissible gastroenteritis virus in piglets. Appl Microbiol Biotechnol 2018; 102:8403-8417. [PMID: 30022263 PMCID: PMC7080080 DOI: 10.1007/s00253-018-9205-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/22/2018] [Accepted: 06/27/2018] [Indexed: 01/07/2023]
Abstract
Transmissible gastroenteritis coronavirus (TGEV) is one of the most severe threats to the swine industry. In this study, we constructed a suite of recombinant Lactobacillus plantarum with surface displaying the spike (S) protein coming from TGEV and fused with DC cells targeting peptides (DCpep) to develop an effective, safe, and convenient vaccine against transmissible gastroenteritis. Our research results found that the recombinant Lactobacillus plantarum (NC8-pSIP409-pgsA-S-DCpep) group expressing S fused with DCpep could not only significantly increase the percentages of MHC-II+CD80+ B cells and CD3+CD4+ T cells but also the number of IgA+ B cells and CD3+CD4+ T cells of ileum lamina propria, which elevated the specific secretory immunoglobulin A (SIgA) titers in feces and IgG titers in serum. Taken together, these results suggest that NC8-pSIP409-pgsA-S-DCpep expressing the S of TGEV fused with DCpep could effectively induce immune responses and provide a feasible original strategy and approach for the design of TGEV vaccines.
Collapse
Affiliation(s)
- Yu-Bei Jin
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Wen-Tao Yang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Chun-Wei Shi
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Bo Feng
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Ke-Yan Huang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Guang-Xun Zhao
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Qiong-Yan Li
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Jing Xie
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Hai-Bin Huang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Yan-Long Jiang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Jian-Zhong Wang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Guan Wang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Yuan-Huan Kang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China
| | - Gui-Lian Yang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China.
| | - Chun-Feng Wang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, 2888 Xincheng Street, Changchun, 130118, China.
| |
Collapse
|
9
|
Ma S, Wang L, Huang X, Wang X, Chen S, Shi W, Qiao X, Jiang Y, Tang L, Xu Y, Li Y. Oral recombinant Lactobacillus vaccine targeting the intestinal microfold cells and dendritic cells for delivering the core neutralizing epitope of porcine epidemic diarrhea virus. Microb Cell Fact 2018; 17:20. [PMID: 29426335 PMCID: PMC5807822 DOI: 10.1186/s12934-018-0861-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 01/15/2018] [Indexed: 01/02/2023] Open
Abstract
Background Porcine epidemic diarrhea caused by porcine epidemic diarrhea virus (PEDV) has led to serious economic losses to the swine industry worldwide. In this study, an oral recombinant Lactobacillus casei vaccine against PEDV infection targeting the intestinal microfold (M) cells and dendritic cells (DCs) for delivering the core neutralizing epitope (COE) of PEDV spike protein was developed with M cell-targeting peptide (Col) and dendritic cell-targeting peptide (DCpep). The immunogenicity of the orally administered recombinant strains was evaluated. Results After immunization, significantly higher levels of anti-PEDV specific IgG antibodies with PEDV neutralizing activity in the sera and mucosal sIgA antibodies in the tractus genitalis, intestinal mucus, and stools were detected in mice orally administered with the recombinant strain pPG-COE-Col-DCpep/L393, which expressed DCpep and Col targeting ligands fused with the PEDV COE antigen, compared to mice orally immunized with the recombinant strain pPG-COE/L393 without the DCpep and Col targeting ligands. Moreover, in response to restimulation with the PEDV COE antigen in vitro, a significant difference in splenocyte proliferation response and Th2-associated cytokine IL-4 level was observed in the group of mice orally immunized with pPG-COE-Col-DCpep/L393 (p < 0.05) compared to the groups of mice that received pPG-COE-Col/L393 and pPG-COE-DCpep/L393, respectively. Conclusions The intestinal M cells- and DCs-targeting oral delivery of genetically engineered Lactobacillus expressing the COE antigen of PEDV can efficiently induce anti-PEDV mucosal, humoral, and cellular immune responses via oral administration, suggesting a promising vaccine strategy against PEDV infection.![]() Electronic supplementary material The online version of this article (10.1186/s12934-018-0861-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Sunting Ma
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China
| | - Li Wang
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China
| | - Xuewei Huang
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China
| | - Xiaona Wang
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China
| | - Su Chen
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China
| | - Wen Shi
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China
| | - Xinyuan Qiao
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, People's Republic of China
| | - Yanping Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China
| | - Lijie Tang
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China.,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, People's Republic of China
| | - Yigang Xu
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China. .,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, People's Republic of China.
| | - Yijing Li
- College of Veterinary Medicine, Northeast Agricultural University, Mu Cai Street No. 59, Xiang Fang District, Harbin, People's Republic of China. .,Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, People's Republic of China.
| |
Collapse
|
10
|
Hidalgo-Cantabrana C, O’Flaherty S, Barrangou R. CRISPR-based engineering of next-generation lactic acid bacteria. Curr Opin Microbiol 2017. [DOI: 10.1016/j.mib.2017.05.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
11
|
Duranti S, Gaiani F, Mancabelli L, Milani C, Grandi A, Bolchi A, Santoni A, Lugli GA, Ferrario C, Mangifesta M, Viappiani A, Bertoni S, Vivo V, Serafini F, Barbaro MR, Fugazza A, Barbara G, Gioiosa L, Palanza P, Cantoni AM, de'Angelis GL, Barocelli E, de'Angelis N, van Sinderen D, Ventura M, Turroni F. Elucidating the gut microbiome of ulcerative colitis: bifidobacteria as novel microbial biomarkers. FEMS Microbiol Ecol 2016; 92:fiw191. [PMID: 27604252 DOI: 10.1093/femsec/fiw191] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2016] [Indexed: 12/21/2022] Open
Abstract
Ulcerative colitis (UC) is associated with a substantial alteration of specific gut commensals, some of which may be involved in microbiota-mediated protection. In this study, microbiota cataloging of UC patients by 16S rRNA microbial profiling revealed a marked reduction of bifidobacteria, in particular the Bifidobacterium bifidum species, thus suggesting that this taxon plays a biological role in the aetiology of UC. We investigated this further through an in vivo trial by testing the effects of oral treatment with B. bifidum PRL2010 in a wild-type murine colitis model. TNBS-treated mice receiving 10(9) cells of B. bifidum PRL2010 showed a marked reduction of all colitis-associated histological indices as well as maintenance of mucosal integrity as it was shown by the increase in the expression of many tight junction-encoding genes. The protective role of B. bifidum PRL2010, as well as its sortase-dependent pili, appears to be established through the induction of an innate immune response of the host. These results highlight the importance of B. bifidum as a microbial biomarker for UC, revealing its role in protection against experimentally induced colitis.
Collapse
Affiliation(s)
- Sabrina Duranti
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Federica Gaiani
- Gastroenterology Unit, University Hospital of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Leonardo Mancabelli
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Christian Milani
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Andrea Grandi
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Angelo Bolchi
- Laboratory of Molecular Biology, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Andrea Santoni
- Laboratory of Molecular Biology, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Gabriele Andrea Lugli
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Chiara Ferrario
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | | | - Alice Viappiani
- GenProbio srl, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Simona Bertoni
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Valentina Vivo
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Fausta Serafini
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Maria Raffaella Barbaro
- Department of Medical and Surgical Sciences and Center for Applied Biomedical Research (CRBA), University of Bologna, Via Massarenti 9, Bologna 40138, Italy
| | - Alessandro Fugazza
- Gastroenterology Unit, University Hospital of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Giovanni Barbara
- Department of Medical and Surgical Sciences and Center for Applied Biomedical Research (CRBA), University of Bologna, Via Massarenti 9, Bologna 40138, Italy
| | - Laura Gioiosa
- Department of Neurosciences, University of Parma, 43124 Parma, Italy
| | - Paola Palanza
- Department of Neurosciences, University of Parma, 43124 Parma, Italy
| | - Anna Maria Cantoni
- Department of Veterinary Science, University of Parma, Via del Taglio 10, 43126 Parma, Italy
| | - Gian Luigi de'Angelis
- Gastroenterology Unit, University Hospital of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Elisabetta Barocelli
- Department of Pharmacy, University of Parma, Parco Area delle Scienze 27/A, 43124 Parma, Italy
| | - Nicola de'Angelis
- Unit of Digestive, Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Henri Mondor Hospital, 51 Avenue du Maréchal de Lattre de Tassigny, Créteil 94010, France
| | - Douwe van Sinderen
- APC Microbiome Institute and School of Microbiology, National University of Ireland, Cork, Ireland
| | - Marco Ventura
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| | - Francesca Turroni
- Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parco Area delle Scienze 11A, 43124 Parma, Italy
| |
Collapse
|
12
|
Hu J, Wang C, Ye L, Yang W, Huang H, Meng F, Shi S, Ding Z. Anti-tumour immune effect of oral administration of Lactobacillus plantarum to CT26 tumour-bearing mice. J Biosci 2016; 40:269-79. [PMID: 25963256 DOI: 10.1007/s12038-015-9518-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Colorectal cancer (CRC) is one of the most prevalent forms of cancer that shows a high mortality and increasing incidence. There are numerous successful treatment options for CRC, including surgery, chemotherapy, radiotherapy and immunotherapy; however, their side effects and limitations are considerable. Probiotics may be an effective strategy for preventing and inhibiting tumour growth through stimulation of host innate and adaptive immunity. We investigated and compared potential anti-tumour immune responses induced by two isolated Lactobacillus strains, Lactobacillus plantarum A and Lactobacillus rhamnosus b, by pre-inoculating mice with lactobacilli for 14 days. Subsequently, subcutaneous and orthotopic intestinal tumours were generated in the pre-inoculated mice using CT26 murine adenocarcinoma cells and were assessed for response against the tumour. Our results indicated that oral administration with L. plantarum inhibited CT26 cell growth in BALB/c mice and prolonged the survival time of tumour-bearing mice compared with mice administered L. rhamnosus. L. plantarum produced protective immunity against the challenge with CT26 cells by increasing the effector functions of CD8+ and natural killer (NK) cell infiltration into tumour tissue, up-regulation of IFN-gamma (but not IL-4 or IL-17) production, and promotion of Th1-type CD4+ T differentiation. Consequently, our results suggest that L. plantarum can enhance the anti-tumour immune response and delay tumour formation.
Collapse
Affiliation(s)
- Jingtao Hu
- College of Veterinary Medicine, Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University, Changchun 130062, China
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Kajikawa A, Zhang L, LaVoy A, Bumgardner S, Klaenhammer TR, Dean GA. Mucosal Immunogenicity of Genetically Modified Lactobacillus acidophilus Expressing an HIV-1 Epitope within the Surface Layer Protein. PLoS One 2015; 10:e0141713. [PMID: 26509697 PMCID: PMC4624987 DOI: 10.1371/journal.pone.0141713] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 10/12/2015] [Indexed: 11/28/2022] Open
Abstract
Surface layer proteins of probiotic lactobacilli are theoretically efficient epitope-displaying scaffolds for oral vaccine delivery due to their high expression levels and surface localization. In this study, we constructed genetically modified Lactobacillus acidophilus strains expressing the membrane proximal external region (MPER) from human immunodeficiency virus type 1 (HIV-1) within the context of the major S-layer protein, SlpA. Intragastric immunization of mice with the recombinants induced MPER-specific and S-layer protein-specific antibodies in serum and mucosal secretions. Moreover, analysis of systemic SlpA-specific cytokines revealed that the responses appeared to be Th1 and Th17 dominant. These findings demonstrated the potential use of the Lactobacillus S-layer protein for development of oral vaccines targeting specific peptides.
Collapse
Affiliation(s)
- Akinobu Kajikawa
- Department of Applied Biology and Chemistry, Tokyo University of Agriculture, Tokyo, Japan
| | - Lin Zhang
- Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Alora LaVoy
- Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
| | - Sara Bumgardner
- Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Todd R. Klaenhammer
- Department of Food, Bioprocessing, & Nutrition Sciences, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Gregg A. Dean
- Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America
- * E-mail:
| |
Collapse
|
14
|
Lactobacillus plantarum vaccine vector expressing hemagglutinin provides protection against H9N2 challenge infection. Virus Res 2015; 211:46-57. [PMID: 26363195 DOI: 10.1016/j.virusres.2015.09.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 08/27/2015] [Accepted: 09/04/2015] [Indexed: 01/25/2023]
Abstract
Hemagglutinin (HA) has been demonstrated as an effective candidate vaccine antigen against AIVs. Dendritic cell-targeting peptide (DCpep) can enhance the robustness of immune responses. The purpose of this study was to evaluate whether DCpep could enhance the immune response against H9N2 AIV when utilizing Lactobacillus plantarum NC8 (NC8) to present HA-DCpep in mouse and chicken models. To accomplish this, a mucosal vaccine of a recombinant NC8 strain expressing HA and DCpep that was constructed in a previous study was employed. Orally administered NC8-pSIP409-HA-DCpep elicited high serum titers of hemagglutination-inhibition (HI) antibodies in mice and also induced robust T cell immune responses in both mouse and chicken models. Orally administered NC8-pSIP409-HA-DCpep elicited high serum titers of hemagglutination-inhibition (HI) antibodies in mice and also induced robust T cell immune responses in both mouse and chicken models. These results revealed that recombinant L. plantarum NC8-pSIP409-HA-DCpep is an effective vaccine candidate against H9N2 AIVs.
Collapse
|
15
|
Choi HJ, Lee NK, Paik HD. Health benefits of lactic acid bacteria isolated from kimchi, with respect to immunomodulatory effects. Food Sci Biotechnol 2015. [DOI: 10.1007/s10068-015-0102-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
16
|
Lactobacillus rhamnosus GG Dosage Affects the Adjuvanticity and Protection Against Rotavirus Diarrhea in Gnotobiotic Pigs. J Pediatr Gastroenterol Nutr 2015; 60:834-43. [PMID: 25564808 DOI: 10.1097/mpg.0000000000000694] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVES The use of immunostimulatory strains of probiotics as adjuvants has been increasingly recognized as a promising approach in enhancing vaccine immunogenicity; however, dose effects of probiotic adjuvants are not well defined. In the present study, we examined dose effects of a commonly used probiotic strain, Lactobacillus rhamnosus GG (LGG), on immunomodulation with 2 different dosages. METHODS Neonatal gnotobiotic pigs were inoculated with 2 oral doses of attenuated human rotavirus (AttHRV) vaccines and fed with 5 doses (LGG5X; total 2.1 × 10(6) colony-forming units) or 9 doses (LGG9X; total 3.2 × 10(6) colony-forming units) of LGG, starting at 3 days of age. RESULTS Both LGG feeding regimens enhanced the protection rate of AttHRV vaccine against diarrhea on virulent human rotavirus challenge. LGG5X, but not LGG9X, significantly enhanced rotavirus-specific intestinal memory B-cell responses to AttHRV; LGG5X also significantly enhanced virus-specific intestinal immunoglobulin A (IgA) antibody-secreting cell responses. Both regimens significantly enhanced rotavirus-specific serum IgA antibody responses to AttHRV. They also enhanced rotavirus-specific interferon-γ-producing effector/memory T-cell responses to AttHRV vaccine, with LGG9X being more effective than LGG5X, and both regimens downregulated CD4+CD25-FoxP3+ regulatory T (Treg) cell responses in most lymphoid tissues examined prechallenge and postchallenge and maintained the CD4+CD25+FoxP3+ Treg population in the ileum and intraepithelial lymphocyte postchallenge. LGG9X, however, did not significantly reduce total CD4+CD25-FoxP3+ Treg frequencies in the intestine and transforming growth factor-β-producing and interleukin (IL)-10-producing Treg frequencies in the blood. CONCLUSIONS These results indicate that LGG at both dosages functioned as effective probiotic adjuvant for AttHRV vaccine, but different dosages differentially modulated immune responses to favor either the mucosal IgA response (LGG5X) or the T-cell response (LGG9X).
Collapse
|
17
|
Genomics and Proteomics of Foodborne Microorganisms. Food Microbiol 2014. [DOI: 10.1128/9781555818463.ch39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
18
|
Multiplex Polymerase Chain Reaction Assay for the Specific Detection of the Organism Causing Anthrax. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s40011-014-0344-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
19
|
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]
|
20
|
Tournier JN, Ulrich RG, Quesnel-Hellmann A, Mohamadzadeh M, Stiles BG. Anthrax, toxins and vaccines: a 125-year journey targetingBacillus anthracis. Expert Rev Anti Infect Ther 2014; 7:219-36. [DOI: 10.1586/14787210.7.2.219] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
21
|
Owen JL, Sahay B, Mohamadzadeh M. New generation of oral mucosal vaccines targeting dendritic cells. Curr Opin Chem Biol 2013; 17:918-24. [PMID: 23835515 DOI: 10.1016/j.cbpa.2013.06.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 06/13/2013] [Indexed: 01/08/2023]
Abstract
As most infectious organisms gain entry at mucosal surfaces, there is a great deal of interest in developing vaccines that elicit effective mucosal immune responses against pathogen challenge. Targeted vaccination is one of the most effective methods available to prevent and control infectious diseases. Mucosal vaccines can offer lower costs, better accessibility, needle free delivery, and a higher capacity for mass immunizations during pandemics. Both local mucosal immunity and robust systemic responses can be achieved through mucosal vaccination. Recent progress in understanding the molecular and cellular components of the mucosal immune system have allowed for the development of a novel mucosal vaccine platform utilizing specific dendritic cell-targeting peptides and orally administered lactobacilli to elicit efficient antigen specific immune responses against infections, including Bacillus anthracis in experimental models of disease.
Collapse
Affiliation(s)
- Jennifer L Owen
- Department of Infectious Diseases and Pathology, University of Florida, 2015 SW16th Avenue, Gainesville, FL 32608, USA; Division of Gastroenterology, Hepatology & Nutrition, Department of Medicine, University of Florida, P.O. Box 100214, Gainesville, FL 32610-0214, USA
| | | | | |
Collapse
|
22
|
Anti-influenza virus effects of both live and non-live Lactobacillus acidophilus L-92 accompanied by the activation of innate immunity. Br J Nutr 2013; 110:1810-8. [PMID: 23594927 DOI: 10.1017/s0007114513001104] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The antiviral effects of both a live and non-live Lactobacillus acidophilus strain L-92 (L-92) were investigated by oral administration (10 mg/mouse per d) daily for 21 d in a mouse model infected intranasally with influenza virus (H1N1). Virus titres in the lung of mice administered either live or non-live L-92 cells daily for 15 d were repressed 6 d after virus infection compared with the control group. Natural killer (NK) activity in the orally administered non-live L-92 group was higher compared with that of the control group before virus infection and on day 6. In contrast, NK activity in the live L-92 group compared with the control group was not significantly changed on both days, but was significantly higher on day 1. In contrast, live L-92 showed a greater repression of virus proliferation compared with non-live L-92, 6 d after the infection. Live L-92 decreased the number of neutrophils in the lung and suppressed lung weight, leading to the consequent deterioration of consolidation scores of the lung. These results indicated that pretreatment of live or non-live L-92 cells had protective effects against influenza virus infection. Among the measured cytokines and chemokines, eotaxin, macrophage colony-stimulating factor, IL-1b, RANTES (regulated on activation, normal T cell expressed and secreted) and interferon-a were significantly increased in the lung: IL-17 was significantly increased in Peyer’s patch of the live L-92 group compared with the control group. A mechanistic study suggested that the enhancement of NK activity in the lung caused by stimulating various antiviral cytokines and chemokines after the oral administration of L-92 cells might be important in protecting against virus infection.
Collapse
|
23
|
Lightfoot YL, Mohamadzadeh M. Tailoring gut immune responses with lipoteichoic acid-deficient Lactobacillus acidophilus. Front Immunol 2013; 4:25. [PMID: 23390423 PMCID: PMC3565175 DOI: 10.3389/fimmu.2013.00025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 01/21/2013] [Indexed: 01/11/2023] Open
Abstract
As highlighted by the development of intestinal autoinflammatory disorders when tolerance is lost, homeostatic interactions between gut microbiota, resident immune cells, and the gut epithelium are key in the maintenance of gastrointestinal health. Gut immune responses, whether stimulatory or regulatory, are dictated by the activated dendritic cells (DCs) that first interact with microorganisms and their gene products to then elicit T and B cell responses. Previously, we have demonstrated that treatment with genetically modified Lactobacillus acidophilus is sufficient to tilt the immune balance from proinflammatory to regulatory in experimental models of colitis and colon cancer. Given the significant role of DCs in efficiently orchestrating intestinal immune responses, characterization of the signals induced within these cells by the surface layer molecules, such as lipoteichoic acid (LTA), and proteins of L. acidophilus is critical for future treatment and prevention of gastrointestinal diseases. Here, we discuss the potential regulatory pathways involved in the downregulation of pathogenic inflammation in the gut, and explore questions regarding the immune responses to LTA-deficient L. acidophilus that require future studies.
Collapse
Affiliation(s)
- Yaíma L Lightfoot
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida Gainesville, FL, USA ; Division of Gastroenterology Hepatology & Nutrition, Department of Medicine, College of Medicine, University of Florida Gainesville, FL, USA
| | | |
Collapse
|
24
|
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: 25] [Impact Index Per Article: 2.3] [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.
Collapse
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:
| |
Collapse
|
25
|
Abstract
Traditional non-gastrointestinal vaccines can prevent effectively the invasion of pathogens; however, these vaccines are less effective against mucosal infections because there is not a sufficient immune response at the mucosa. Most pathogens invade via a mucosal pathway (oral, intranasal, or vaginal). It is widely accepted that Lactobacillus species play a critical role as commensals in the gastrointestinal (GI) tract. Their ability to survive in the digestive tract, their close association with the intestinal epithelium, their immunomodulatory properties and their safety even when consumed in large amounts make lactobacilli attractive candidates for live vehicles for the delivery of immunogens to the intestinal mucosa. The oral or intranasal administration of Lactobacillus-based vaccines is a promising method to control mucosal infection because these vaccines could induce strong humoral and cellular immune responses both in the blood and at mucosal sites.
Collapse
Affiliation(s)
- Qinghua Yu
- Nanjing Agricultural University; Nanjing, Jiangsu P.R. China
| | | | | | | |
Collapse
|
26
|
Surface display of N-terminally anchored invasin by Lactobacillus plantarum activates NF-κB in monocytes. Appl Environ Microbiol 2012; 78:5864-71. [PMID: 22706054 DOI: 10.1128/aem.01227-12] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The probiotic lactic acid bacterium Lactobacillus plantarum is a potential delivery vehicle for mucosal vaccines because of its generally regarded as safe (GRAS) status and ability to persist at the mucosal surfaces of the human intestine. However, the inherent immunogenicity of vaccine antigens is in many cases insufficient to elicit an efficient immune response, implying that additional adjuvants are needed to enhance the antigen immunogenicity. The goal of the present study was to increase the proinflammatory properties of L. plantarum by expressing a long (D1 to D5 [D1-D5]) and a short (D4-D5) version of the extracellular domain of invasin from the human pathogen Yersinia pseudotuberculosis. To display these proteins on the bacterial surface, four different N-terminal anchoring motifs from L. plantarum were used, comprising two different lipoprotein anchors, a transmembrane signal peptide anchor, and a LysM-type anchor. All these anchors mediated surface display of invasin, and several of the engineered strains were potent activators of NF-κB when interacting with monocytes in cell culture. The most distinct NF-κB responses were obtained with constructs in which the complete invasin extracellular domain was fused to a lipoanchor. The proinflammatory L. plantarum strains constructed here represent promising mucosal delivery vehicles for vaccine antigens.
Collapse
|
27
|
Abating colon cancer polyposis by Lactobacillus acidophilus deficient in lipoteichoic acid. Proc Natl Acad Sci U S A 2012; 109:10462-7. [PMID: 22689992 DOI: 10.1073/pnas.1207230109] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
An imbalance of commensal bacteria and their gene products underlies mucosal and, in particular, gastrointestinal inflammation and a predisposition to cancer. Lactobacillus species have received considerable attention as examples of beneficial microbiota. We have reported previously that deletion of the phosphoglycerol transferase gene that is responsible for lipoteichoic acid (LTA) biosynthesis in Lactobacillus acidophilus (NCK2025) rendered this bacterium able to significantly protect mice against induced colitis when delivered orally. Here we report that oral treatment with LTA-deficient NCK2025 normalizes innate and adaptive pathogenic immune responses and causes regression of established colonic polyps. This study reveals the proinflammatory role of LTA and the ability of LTA-deficient L. acidophilus to regulate inflammation and protect against colonic polyposis in a unique mouse model.
Collapse
|
28
|
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.
Collapse
Affiliation(s)
- Mohammad W Khan
- The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | | | | | | | | | | |
Collapse
|
29
|
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.
Collapse
Affiliation(s)
- Matheswaran Kandasamy
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | | | | | | | | |
Collapse
|
30
|
Wen K, Li G, Bui T, Liu F, Li Y, Kocher J, Lin L, Yang X, Yuan L. High dose and low dose Lactobacillus acidophilus exerted differential immune modulating effects on T cell immune responses induced by an oral human rotavirus vaccine in gnotobiotic pigs. Vaccine 2011; 30:1198-207. [PMID: 22178726 DOI: 10.1016/j.vaccine.2011.11.107] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Revised: 11/28/2011] [Accepted: 11/29/2011] [Indexed: 01/14/2023]
Abstract
BACKGROUND Strain-specific effects of probiotics in pro- or anti-inflammatory immune responses have been well recognized. Several proinflammatory Lactobacillus strains have been shown to act as adjuvants to enhance the immunogenicity of vaccines. However, dose effects of probiotics in modulating immune responses are not clearly understood. This study examined the dose effects of Lactobacillus acidophilus (LA) NCFM strain on T cell immune responses to rotavirus vaccination in a gnotobiotic (Gn) pig model. METHODS Frequencies of IFN-γ producing CD4+ and CD8+ T cell and IL-10 and TGF-β producing CD4+CD25+ and CD4+CD25- regulatory T (Treg) cell responses were determined in the intestinal and systemic lymphoid tissues of Gn pigs vaccinated with an oral human rotavirus vaccine in conjunction with low dose (5 feedings; up to 10(6) colony forming units [CFU]/dose) or high dose (14 feedings; up to 10(9)CFU/dose) or without LA feeding. RESULTS Low dose LA significantly promoted IFN-γ producing T cell responses and down-regulated Treg cell responses and their TGF-β and IL-10 productions in all the tissues compared to the high dose LA and control groups. To the contrary, high dose LA increased the frequencies of Treg cells in most of the tissues compared to the control groups. The dose effects of LA on IFN-γ producing T cell and CD4+CD25- Treg cell immune responses were similar in the intestinal and systemic lymphoid tissues and were independent from the vaccination. CONCLUSION Thus the same probiotic strain in different doses can either promote or suppress IFN-γ producing T cell or Treg cell immune responses. These findings have significant implications in the use of probiotic lactobacilli as immunostimulatory versus immunoregulatory agents. Probiotics can be ineffective or even detrimental if not used at the optimal dosage for the appropriate purposes.
Collapse
Affiliation(s)
- Ke Wen
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Integrated Life Science Building, 1981 Kraft Dr, Blacksburg, VA 24061-0913, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Kajikawa A, Igimi S. Development of recombinant vaccines in lactobacilli for elimination of salmonella. Biosci Microflora 2011; 30:93-8. [PMID: 25045314 PMCID: PMC4103640 DOI: 10.12938/bifidus.30.93] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Indexed: 11/29/2022] Open
Abstract
Many Lactobacillus and Lactococcus strains are
generally regarded as safe for consumption because they are utilized for food fermentation
or inhabit the intestinal mucosa as commensals. Recently, vaccine delivery systems using
lactic acid bacteria (LAB) have been under development. Our research group has been
investigating the development of oral mucosal vaccines against Salmonella
enterica serovar Enteritidis (SE) using Lactobacillus casei
IGM393 as an antigen delivery vehicle. Recombinant lactobacilli expressing SE antigens,
FliC, SipC, and OmpC, have been constructed and orally administered to mice. Antigen
specific immune responses and protective immunity were elicited after the immunization.
For adjuvant-delivery, IL-1β-secreting L. casei was also engineered and
its effects evaluated in vitro and in vivo. This article
reviews a novel approach to the elimination of Salmonella via the
development of a vaccine in lactobacilli.
Collapse
Affiliation(s)
- Akinobu Kajikawa
- Department of Food, Bioprocessing, & Nutrition Sciences, North Carolina State University, 341 Schaub Hall, North Carolina State University, Raleigh, NC 27695, USA
| | - Shizunobu Igimi
- Division of Biomedical Food Research, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| |
Collapse
|
32
|
Kajikawa A, Nordone SK, Zhang L, Stoeker LL, LaVoy AS, Klaenhammer TR, Dean GA. Dissimilar properties of two recombinant Lactobacillus acidophilus strains displaying Salmonella FliC with different anchoring motifs. Appl Environ Microbiol 2011; 77:6587-96. [PMID: 21784918 PMCID: PMC3187123 DOI: 10.1128/aem.05153-11] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Accepted: 07/12/2011] [Indexed: 11/20/2022] Open
Abstract
Display of heterologous antigens on the cell surface is considered a useful technique for vaccine delivery by recombinant lactobacilli. In this study, two recombinant Lactobacillus acidophilus derivatives displaying Salmonella flagellin (FliC) were constructed using different anchor motifs. In one instance, the FliC protein was fused to the C-terminal region of a cell envelope proteinase (PrtP) and was bound to the cell wall by electrostatic bonds. In the other case, the same antigen was conjugated to the anchor region of mucus binding protein (Mub) and was covalently associated with the cell wall by an LPXTG motif. These two recombinant L. acidophilus cell surface displays resulted in dissimilar maturation and cytokine production by human myeloid dendritic cells. The surface-associated antigen was highly sensitive to simulated gastric and small intestinal juices. By supplementation with bicarbonate buffer and soybean trypsin inhibitor, the cell surface antigen was protected from proteolytic enzymes during gastric challenge in vitro. The protective reagents also increased the viability of the L. acidophilus cells upon challenge with simulated digestive juices. These results demonstrate the importance of protecting cells and their surface-associated antigens during oral immunization.
Collapse
Affiliation(s)
- Akinobu Kajikawa
- Center for Comparative Medicine and Translational Research, Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | | | | | | | | | | | | |
Collapse
|
33
|
O'Flaherty S, Klaenhammer TR. The Impact of Omic Technologies on the Study of Food Microbes. Annu Rev Food Sci Technol 2011; 2:353-71. [DOI: 10.1146/annurev-food-030810-110338] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sarah O'Flaherty
- Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Raleigh, North Carolina 27695;
| | - Todd R. Klaenhammer
- Department of Food, Bioprocessing and Nutrition Sciences, North Carolina State University, Raleigh, North Carolina 27695;
| |
Collapse
|
34
|
Regulation of induced colonic inflammation by Lactobacillus acidophilus deficient in lipoteichoic acid. Proc Natl Acad Sci U S A 2011; 108 Suppl 1:4623-30. [PMID: 21282652 DOI: 10.1073/pnas.1005066107] [Citation(s) in RCA: 204] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Imbalance in the regulatory immune mechanisms that control intestinal cellular and bacterial homeostasis may lead to induction of the detrimental inflammatory signals characterized in humans as inflammatory bowel disease. Induction of proinflammatory cytokines (i.e., IL-12) induced by dendritic cells (DCs) expressing pattern recognition receptors may skew naive T cells to T helper 1 polarization, which is strongly implicated in mucosal autoimmunity. Recent studies show the ability of probiotic microbes to treat and prevent numerous intestinal disorders, including Clostridium difficile-induced colitis. To study the molecular mechanisms involved in the induction and repression of intestinal inflammation, the phosphoglycerol transferase gene that plays a key role in lipoteichoic acid (LTA) biosynthesis in Lactobacillus acidophilus NCFM (NCK56) was deleted. The data show that the L. acidophilus LTA-negative in LTA (NCK2025) not only down-regulated IL-12 and TNFα but also significantly enhanced IL-10 in DCs and controlled the regulation of costimulatory DC functions, resulting in their inability to induce CD4(+) T-cell activation. Moreover, treatment of mice with NCK2025 compared with NCK56 significantly mitigated dextran sulfate sodium and CD4(+)CD45RB(high)T cell-induced colitis and effectively ameliorated dextran sulfate sodium-established colitis through a mechanism that involves IL-10 and CD4(+)FoxP3(+) T regulatory cells to dampen exaggerated mucosal inflammation. Directed alteration of cell surface components of L. acidophilus NCFM establishes a potential strategy for the treatment of inflammatory intestinal disorders.
Collapse
|
35
|
Klein M, Sanders ME, Duong T, Young HA. Probiotics: from bench to market. Ann N Y Acad Sci 2011; 1212 Suppl 1:E1-14. [PMID: 21105878 DOI: 10.1111/j.1749-6632.2010.05839.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
"Probiotics: From Bench to Market" was a one-day conference convened by the New York Academy of Sciences on June 11, 2010, with the goal of stimulating discussion of the physiological effects of probiotics on the gastrointestinal, nervous, and immune systems. The program included speakers from academia, industry, and government to give conference participants a full understanding of the state of the field of probiotics. The overall goal of the program was to increase communication and collaboration among these groups to advance probiotic research and probiotic contributions to public health. The conference was divided into three sessions and included both oral and visual presentations as well as panel discussions.
Collapse
Affiliation(s)
- Marguerite Klein
- Office of Dietary Supplements, National Institutes of Health, Bethesda, Maryland, USA
| | | | | | | |
Collapse
|
36
|
Mohamadzadeh M, Durmaz E, Zadeh M, Pakanati KC, Gramarossa M, Cohran V, Klaenhammer TR. Targeted expression of anthrax protective antigen by Lactobacillus gasseri as an anthrax vaccine. Future Microbiol 2010; 5:1289-96. [PMID: 20722604 DOI: 10.2217/fmb.10.78] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
AIM Induction of protective immunity against pathogenic microbes, including Bacillus anthracis, requires efficient vaccines that potentiate antibody avidity and increase T-cell longevity. We recently reported that the delivery of targeted B. anthracis protective antigen (PA) genetically fused to a DC-binding peptide (DCpep) by Lactobacillus acidophilus induced mucosal and systemic immunity against B. anthracis challenge in mice. MATERIALS & METHODS Improvement of this oral vaccine strategy was attempted by use of the high copy and genetically stable q-replicating vector, pTRKH2, for expression of the targeted PA fusion protein in Lactobacillus gasseri, a common human commensal microbe, to vaccinate animals against anthrax Sterne infection. RESULTS Oral application of L. gasseri expressing the PA-DCpep fusion proteins elicited robust PA-neutralizing antibody and T-cell mediated immune responses against anthrax Sterne challenge, resulting in complete animal survival. Collectively, this improved expression vaccine strategy reduced the number of inoculations and length of the boosting period, leading to animal protection via efficacious bacterial adjuvanticity and safe oral delivery of this vaccine to mucosal immune cells, including dendritic cells. CONCLUSION Lactobacillus-based delivery offers tremendous practical advantages. Recombinant antigens such as PA would not require chemical coupling agents, and the recombinant bacteria can be administered orally where upon both mucosal and systemic immune responses are elicited.
Collapse
Affiliation(s)
- Mansour Mohamadzadeh
- Northwestern University, Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA.
| | | | | | | | | | | | | |
Collapse
|
37
|
Palucka K, Banchereau J, Mellman I. Designing vaccines based on biology of human dendritic cell subsets. Immunity 2010; 33:464-78. [PMID: 21029958 DOI: 10.1016/j.immuni.2010.10.007] [Citation(s) in RCA: 254] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Indexed: 02/02/2023]
Abstract
The effective vaccines developed against a variety of infectious agents, including polio, measles, and hepatitis B, represent major achievements in medicine. These vaccines, usually composed of microbial antigens, are often associated with an adjuvant that activates dendritic cells (DCs). Many infectious diseases are still in need of an effective vaccine including HIV, malaria, hepatitis C, and tuberculosis. In some cases, the induction of cellular rather than humoral responses may be more important because the goal is to control and eliminate the existing infection rather than to prevent it. Our increased understanding of the mechanisms of antigen presentation, particularly with the description of DC subsets with distinct functions, as well as their plasticity in responding to extrinsic signals, represent opportunities to develop novel vaccines. In addition, we foresee that this increased knowledge will permit us to design vaccines that will reprogram the immune system to intervene therapeutically in cancer, allergy, and autoimmunity.
Collapse
Affiliation(s)
- Karolina Palucka
- Baylor Institute for Immunology Research, 3434 Live Oak Avenue, Dallas, TX 75204, USA.
| | | | | |
Collapse
|
38
|
del Rio B, Fuente JL, Neves V, Dattwyler R, Seegers JFML, Gomes-Solecki M. Platform technology to deliver prophylactic molecules orally: an example using the Class A select agent Yersinia pestis. Vaccine 2010; 28:6714-22. [PMID: 20699130 DOI: 10.1016/j.vaccine.2010.07.084] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Revised: 07/09/2010] [Accepted: 07/27/2010] [Indexed: 12/30/2022]
Abstract
Consumed for centuries, lactic acid bacteria are excellent candidates for the development of safe mucosal delivery vehicles for prophylactic and therapeutic molecules. We have recently reported that the immune response to an effective OspA-expressing L. plantarum vaccine for Lyme disease is modulated by the lipid modification of the antigen. In this study, we investigated if this technology can be applied to developing vaccines for other diseases by focusing on the Class A select agent, Yersinia pestis. We used a number of biochemistry and immunology techniques to determine the localization of the immunogen in our delivery vehicle and to evaluate the mucosal as well as the systemic immune response to the immunogen. We found that only LcrV cloned downstream of the signal sequence of B. burgdorferi OspA ((ss)LcrV), but not wildtype LcrV (LcrV), is localized to the desired peptidoglycan layer of the delivery vehicle. In addition, only mice that received L. plantarum expressing (ss)LcrV produced significant titers of IgG antibody as well as IgA in distant mucosal sites such as lungs and vagina. Furthermore, only L. plantarum expressing (ss)LcrV induced significant amounts of pro-inflammatory cytokines TNFα, IL-12, IFNγ and IL-6 as well as anti-inflammatory IL-10 in human peripheral blood mononuclear cells derived dendritic cells, suggesting that the mechanism by which LcrV-expressing L. plantarum stimulates the immune response involves polarization to Th1 mediated immunity with some involvement of Th2. The study reported here proves that this system is a platform technology to develop oral vaccines for multiple diseases.
Collapse
Affiliation(s)
- Beatriz del Rio
- Department of Molecular Sciences, UTHSC, Memphis, TN 38163, USA
| | | | | | | | | | | |
Collapse
|
39
|
Key roles of dendritic cells in lung infection and improving anthrax vaccines. Trends Mol Med 2010; 16:303-12. [DOI: 10.1016/j.molmed.2010.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Revised: 04/20/2010] [Accepted: 04/22/2010] [Indexed: 12/21/2022]
|
40
|
O'Flaherty S, Klaenhammer TR. The role and potential of probiotic bacteria in the gut, and the communication between gut microflora and gut/host. Int Dairy J 2010. [DOI: 10.1016/j.idairyj.2009.11.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
41
|
Reynolds JL, Mahajan SD, Aalinkeel R, Nair B, Sykes DE, Schwartz SA. Proteomic analyses of the effects of drugs of abuse on monocyte-derived mature dendritic cells. Immunol Invest 2010; 38:526-50. [PMID: 19811410 DOI: 10.1080/08820130902874110] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Drug abuse has become a global health concern. Understanding how drug abuse modulates the immune system and how the immune system responds to pathogens associated with drug abuse, such hepatitis C virus (HCV) and human immunodeficiency virus (HIV-1), can be assessed by an integrated approach comparing proteomic analyses and quantitation of gene expression. Two-dimensional (2D) difference gel electrophoresis was used to determine the molecular mechanisms underlying the proteomic changes that alter normal biological processes when monocyte-derived mature dendritic cells were treated with cocaine or methamphetamine. Both drugs differentially regulated the expression of several functional classes of proteins including those that modulate apoptosis, protein folding, protein kinase activity, and metabolism and proteins that function as intracellular signal transduction molecules. Proteomic data were validated using a combination of quantitative, real-time PCR and Western blot analyses. These studies will help to identify the molecular mechanisms, including the expression of several functionally important classes of proteins that have emerged as potential mediators of pathogenesis. These proteins may predispose immunocompetent cells, including dendritic cells, to infection with viruses such as HCV and HIV-1, which are associated with drug abuse.
Collapse
Affiliation(s)
- Jessica L Reynolds
- Departments of Medicine, Division of Allergy, Immunology and Rheumatology, State University of New York at Buffalo, Buffalo General Hospital, Buffalo, New York, USA.
| | | | | | | | | | | |
Collapse
|
42
|
Cybulski RJ, Sanz P, O'Brien AD. Anthrax vaccination strategies. Mol Aspects Med 2009; 30:490-502. [PMID: 19729034 DOI: 10.1016/j.mam.2009.08.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Accepted: 08/24/2009] [Indexed: 01/10/2023]
Abstract
The biological attack conducted through the US postal system in 2001 broadened the threat posed by anthrax from one pertinent mainly to soldiers on the battlefield to one understood to exist throughout our society. The expansion of the threatened population placed greater emphasis on the reexamination of how we vaccinate against Bacillus anthracis. The currently-licensed Anthrax Vaccine, Adsorbed (AVA) and Anthrax Vaccine, Precipitated (AVP) are capable of generating a protective immune response but are hampered by shortcomings that make their widespread use undesirable or infeasible. Efforts to gain US Food and Drug Administration (FDA) approval for licensure of a second generation recombinant protective antigen (rPA)-based anthrax vaccine are ongoing. However, this vaccine's reliance on the generation of a humoral immune response against a single virulence factor has led a number of scientists to conclude that the vaccine is likely not the final solution to optimal anthrax vaccine design. Other vaccine approaches, which seek a more comprehensive immune response targeted at multiple components of the B. anthracis organism, are under active investigation. This review seeks to summarize work that has been done to build on the current PA-based vaccine methodology and to evaluate the search for future anthrax prophylaxis strategies.
Collapse
Affiliation(s)
- Robert J Cybulski
- Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799, United States
| | | | | |
Collapse
|
43
|
Ahlers JD, Belyakov IM. Strategies for recruiting and targeting dendritic cells for optimizing HIV vaccines. Trends Mol Med 2009; 15:263-74. [DOI: 10.1016/j.molmed.2009.04.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Revised: 04/03/2009] [Accepted: 04/03/2009] [Indexed: 10/20/2022]
|
44
|
Mohamadzadeh M, Duong T, Sandwick SJ, Hoover T, Klaenhammer TR. Dendritic cell targeting of Bacillus anthracis protective antigen expressed by Lactobacillus acidophilus protects mice from lethal challenge. Proc Natl Acad Sci U S A 2009; 106:4331-6. [PMID: 19246373 PMCID: PMC2647975 DOI: 10.1073/pnas.0900029106] [Citation(s) in RCA: 157] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2008] [Indexed: 02/06/2023] Open
Abstract
Efficient vaccines potentiate antibody avidity and increase T cell longevity, which confer protection against microbial lethal challenge. A vaccine strategy was established by using Lactobacillus acidophilus to deliver Bacillus anthracis protective antigen (PA) via specific dendritic cell-targeting peptides to dendritic cells (DCs), which reside in the periphery and mucosal surfaces, thus directing and regulating acquired immunity. The efficiency of oral delivery of L. acidophilus expressing a PA-DCpep fusion was evaluated in mice challenged with lethal B. anthracis Sterne. Vaccination with L. acidophilus expressing PA-DCpep induced robust protective immunity against B. anthracis Sterne compared with mice vaccinated with L. acidophilus expressing PA-control peptide or an empty vector. Additionally, serum anti-PA titers, neutralizing PA antibodies, and the levels of IgA-expressing cells were all comparable with the historical recombinant PA plus aluminum hydroxide vaccine administered s.c. Collectively, development of this strategy for oral delivery of DC-targeted antigens provides a safe and protective vaccine via a bacterial adjuvant that may potentiate mucosal immune responses against deadly pathogens.
Collapse
Affiliation(s)
- M. Mohamadzadeh
- School of Medicine, Northwestern University, Chicago, IL 60611
| | - T. Duong
- Genomic Sciences Graduate Program and
- Department of Food, Bioprocessing, and Nutrition Sciences, North Carolina State University, Raleigh, NC 27695
| | - S. J. Sandwick
- United States Army Medical Research Institute of Infectious Diseases, Frederick, MD 21792; and
| | - T. Hoover
- United States Army Medical Research Institute of Infectious Diseases, Frederick, MD 21792; and
| | - T. R. Klaenhammer
- Genomic Sciences Graduate Program and
- Department of Food, Bioprocessing, and Nutrition Sciences, North Carolina State University, Raleigh, NC 27695
| |
Collapse
|
45
|
Mohamadzadeh M, Klaenhammer TR. Specific Lactobacillus species differentially activate Toll-like receptors and downstream signals in dendritic cells. Expert Rev Vaccines 2008; 7:1155-64. [PMID: 18844590 DOI: 10.1586/14760584.7.8.1155] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Dendritic cells (DCs) regulate mucosal T-cell immunity and encounter several distinct bacteria of the gut flora, including lactobacilli. Gram-positive lactobacilli have been suggested to play an important role in exerting adjuvanticity effects on innate immune cells at mucosal sites. AIMS & METHODS In the present report, we studied the effects of specific Lactobacillus species on human monocyte derived DCs. RESULTS We show that lactobacilli activate DCs by differentially inducing the expression of Toll-like receptors and bioactive IL-12 in Lactobacillus-treated DCs. Further, these specific Lactobacillus spp. did not activate the phosphorylation of p38 MAPK, which might be a downstream effect of the remarkable capacity of lactobacilli to induce IL-12 in DCs that skew T cells significantly toward an IFN-gamma-secreting Th1 response. CONCLUSION These results highlight an important role of specific Lactobacillus spp. as adjuvants in triggering DC function, which in turn may determine the immunological outcome in an environment wherein innate cells reside.
Collapse
Affiliation(s)
- Mansour Mohamadzadeh
- Johns Hopkins University School of Medicine, The Sidney Kimmel Comprehensive Cancer Center, 209 David H Koch Cancer Research Building, 1550 Orleans Street, Baltimore, MD 21231, USA.
| | | |
Collapse
|