1
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Luo M, Chen X, Gao H, Yang F, Chen J, Qiao Y. Bacteria-mediated cancer therapy: A versatile bio-sapper with translational potential. Front Oncol 2022; 12:980111. [PMID: 36276157 PMCID: PMC9585267 DOI: 10.3389/fonc.2022.980111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/23/2022] [Indexed: 11/13/2022] Open
Abstract
Bacteria are important symbionts for humans, which sustain substantial influences on our health. Interestingly, some bastrains have been identified to have therapeutic applications, notably for antitumor activity. Thereby, oncologists have developed various therapeutic models and investigated the potential antitumor mechanisms for bacteria-mediated cancer therapy (BCT). Even though BCT has a long history and exhibits remarkable therapeutic efficacy in pre-clinical animal models, its clinical translation still lags and requires further breakthroughs. This review aims to focus on the established strains of therapeutic bacteria and their antitumor mechanisms, including the stimulation of host immune responses, direct cytotoxicity, the interference on cellular signal transduction, extracellular matrix remodeling, neoangiogenesis, and metabolism, as well as vehicles for drug delivery and gene therapy. Moreover, a brief discussion is proposed regarding the important future directions for this fantastic research field of BCT at the end of this review.
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Affiliation(s)
- Miao Luo
- School of Pharmacy, Institute of Hepatology and Metabolic Diseases, Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, China
| | - Xiaoyu Chen
- School of Pharmacy, Institute of Hepatology and Metabolic Diseases, Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, China
| | - Haojin Gao
- School of Pharmacy, Institute of Hepatology and Metabolic Diseases, Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, China
| | - Fan Yang
- School of Pharmacy, Institute of Hepatology and Metabolic Diseases, Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, China
| | - Jianxiang Chen
- School of Pharmacy, Institute of Hepatology and Metabolic Diseases, Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Yiting Qiao, ; Jianxiang Chen,
| | - Yiting Qiao
- School of Pharmacy, Institute of Hepatology and Metabolic Diseases, Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- The First Affiliated Hospital, Key Laboratory of Combined Multi-Organ Transplantation, Ministry of Public Health, Key Laboratory of Organ Transplantation of Zhejiang Province, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Yiting Qiao, ; Jianxiang Chen,
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2
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Zhu D, Mengyue M, Qimuge A, Bilige B, Baiyin T, Temuqile T, Chen S, Borjigen S, Baigude H, Yang D. Oral Delivery of SARS-CoV-2 DNA Vaccines Using Attenuated Salmonella typhimurium as a Carrier in Rat. MOLECULAR GENETICS, MICROBIOLOGY AND VIROLOGY : MOLEKULYARNAYA GENETIKA, MIKROBIOLOGIYA I VIRUSOLOGIYA 2022; 37:159-166. [PMID: 36589521 PMCID: PMC9790184 DOI: 10.3103/s0891416822030107] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 09/27/2021] [Accepted: 12/08/2021] [Indexed: 12/26/2022]
Abstract
The 2019 novel coronavirus disease (COVID-19) is the disease that has been identified as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), but the prophylactic treatment of SARS-CoV-2 is still under investigation. The effective delivery of eukaryotic expression plasmids to the immune system's inductive cells constitutes an essential requirement for generating effective DNA vaccines. Here, we have explored the use of Salmonella typhimurium as vehicles to deliver expression plasmids orally. The attenuated Salmonella phoP was constructed by the one-step gene inactivation method, and plasmid-encoded the spike protein of SARS-CoV-2 was transform into the Salmonella phoP by electroporation. Western blot experiment was used for the detection of SARS-CoV-2 expression on 293T cells. Wistar rats were immunized orally with Salmonella that carried a eukaryotic expression plasmid once a week for three consecutive weeks. The ELISA was performed to measure the SARS-CoV-2 specific IgG at rat's serum samples. pSARS-CoV-2 can be successfully expression on 293T cells, and all immunized animals generated immunity against the SARS-CoV-2 spike protein, indicating that a Salmonella-based vaccine carrying the Spike gene can elicit SARS-CoV-2-specific secondary immune responses in rats. Oral delivery of SARS-CoV-2 DNA vaccines using attenuated Salmonella typhimurium may help develop a protective vaccine against SARS-CoV-2 infection.
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Affiliation(s)
- Dan Zhu
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Mengyue Mengyue
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Aaodeng Qimuge
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Bilige Bilige
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Tegexi Baiyin
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Temuqile Temuqile
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Shana Chen
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Siqin Borjigen
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
| | - Huricha Baigude
- grid.411643.50000 0004 1761 0411School of Chemistry and Chemical Engineering, Inner Mongolia University, 010020 Hohhot, Inner Mongolia China
| | - Dezhi Yang
- grid.490194.1Pharmaceutical Laboratory, Inner Mongolia International Mongolian Hospital, 010065 Hohhot, Inner Mongolia China
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3
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Garcia-Castillo MD, Tran T, Bobard A, Renard HF, Rathjen SJ, Dransart E, Stechmann B, Lamaze C, Lord M, Cintrat JC, Enninga J, Tartour E, Johannes L. Retrograde transport is not required for cytosolic translocation of the B-subunit of Shiga toxin. J Cell Sci 2015; 128:2373-87. [PMID: 25977475 DOI: 10.1242/jcs.169383] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 05/07/2015] [Indexed: 01/13/2023] Open
Abstract
Antigen-presenting cells have the remarkable capacity to transfer exogenous antigens to the cytosol for processing by proteasomes and subsequent presentation on major histocompatibility complex class-I (MHC-I) molecules, a process termed cross-presentation. This is the target of biomedical approaches that aim to trigger a therapeutic immune response. The receptor-binding B-subunit of Shiga toxin (STxB) has been developed as an antigen delivery tool for such immunotherapy applications. In this study, we have analyzed pathways and trafficking factors that are involved in this process. A covalent conjugate between STxB and saporin was generated to quantitatively sample the membrane translocation step to the cytosol in differentiated monocyte-derived THP-1 cells. We have found that retrograde trafficking to the Golgi complex was not required for STxB-saporin translocation to the cytosol or for STxB-dependent antigen cross-presentation. Depletion of endosomal Rab7 inhibited, and lowering membrane cholesterol levels favored STxB-saporin translocation. Interestingly, experiments with reducible and non-reducible linker-arm-STxB conjugates led to the conclusion that after translocation, STxB remains associated with the cytosolic membrane leaflet. In summary, we report new facets of the endosomal escape process bearing relevance to antigen cross-presentation.
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Affiliation(s)
- Maria Daniela Garcia-Castillo
- Institut Curie, PSL Research University, Endocytic Trafficking and Therapeutic Delivery Group, 26 rue d'Ulm, Paris Cedex 05 75248, France CNRS UMR3666, Paris 75005, France INSERM U1143, Paris 75005, France
| | - Thi Tran
- INSERM U970, PARCC Université Paris Descartes Sorbonne Paris Cité, Paris 75006, France Hôpital Européen Georges-Pompidou, AP-HP, Service d'Immunologie Biologique, Paris Cedex 15 75908, France
| | - Alexandre Bobard
- Dynamique des Interactions Hôte Pathogène, Institut Pasteur, Paris Cedex 15 75724, France
| | - Henri-François Renard
- Institut Curie, PSL Research University, Endocytic Trafficking and Therapeutic Delivery Group, 26 rue d'Ulm, Paris Cedex 05 75248, France CNRS UMR3666, Paris 75005, France INSERM U1143, Paris 75005, France
| | - Stefan J Rathjen
- Institut Curie, PSL Research University, Endocytic Trafficking and Therapeutic Delivery Group, 26 rue d'Ulm, Paris Cedex 05 75248, France CNRS UMR3666, Paris 75005, France INSERM U1143, Paris 75005, France
| | - Estelle Dransart
- Institut Curie, PSL Research University, Endocytic Trafficking and Therapeutic Delivery Group, 26 rue d'Ulm, Paris Cedex 05 75248, France CNRS UMR3666, Paris 75005, France INSERM U1143, Paris 75005, France
| | - Bahne Stechmann
- Institut Curie, PSL Research University, Endocytic Trafficking and Therapeutic Delivery Group, 26 rue d'Ulm, Paris Cedex 05 75248, France CNRS UMR3666, Paris 75005, France INSERM U1143, Paris 75005, France
| | - Christophe Lamaze
- CNRS UMR3666, Paris 75005, France INSERM U1143, Paris 75005, France Institut Curie - Centre de Recherche, Membrane Dynamics and Mechanics of Intracellular Signaling Group, 26 rue d'Ulm, Paris Cedex 05 75248, France
| | - Mike Lord
- Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK
| | | | - Jost Enninga
- Dynamique des Interactions Hôte Pathogène, Institut Pasteur, Paris Cedex 15 75724, France
| | - Eric Tartour
- INSERM U970, PARCC Université Paris Descartes Sorbonne Paris Cité, Paris 75006, France Hôpital Européen Georges-Pompidou, AP-HP, Service d'Immunologie Biologique, Paris Cedex 15 75908, France
| | - Ludger Johannes
- Institut Curie, PSL Research University, Endocytic Trafficking and Therapeutic Delivery Group, 26 rue d'Ulm, Paris Cedex 05 75248, France CNRS UMR3666, Paris 75005, France INSERM U1143, Paris 75005, France
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4
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Igietseme JU, Eko FO, He Q, Black CM. Combination vaccines: design strategies and future trends. Expert Rev Vaccines 2014; 5:739-45. [PMID: 17184210 DOI: 10.1586/14760584.5.6.739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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5
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Zhou L, Wang X, Liu Q, Wang Q, Zhao Y, Zhang Y. A novel multivalent vaccine based on secretary antigen-delivery induces protective immunity against Vibrio anguillarum and Aeromonas hydrophila. J Biotechnol 2010; 146:25-30. [DOI: 10.1016/j.jbiotec.2009.12.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Revised: 09/10/2009] [Accepted: 12/09/2009] [Indexed: 10/20/2022]
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6
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Shahabi V, Maciag PC, Rivera S, Wallecha A. Live, attenuated strains of Listeria and Salmonella as vaccine vectors in cancer treatment. Bioeng Bugs 2010; 1:235-43. [PMID: 21327055 DOI: 10.4161/bbug.1.4.11243] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2009] [Revised: 12/28/2009] [Accepted: 01/04/2010] [Indexed: 02/07/2023] Open
Abstract
Live, attenuated strains of many bacteria that synthesize and secrete foreign antigens are being developed as vaccines for a number of infectious diseases and cancer. Bacterial-based vaccines provide a number of advantages over other antigen delivery strategies including low cost of production, the absence of animal products, genetic stability and safety. In addition, bacterial vaccines delivering a tumor-associated antigen (TAA) stimulate innate immunity and also activate both arms of the adaptive immune system by which they exert efficacious anti-tumor effects. Listeria monocytogenes and several strains of Salmonella have been most extensively studied for this purpose. A number of attenuated strains have been generated and used to deliver antigens associated with infectious diseases and cancer. Although both bacteria are intracellular, the immune responses invoked by Listeria and Salmonella are different due to their sub-cellular locations. Upon entering antigen-presenting cells by phagocytosis, Listeria is capable of escaping from the phagosomal compartment and thus has direct access to the cell cytosol. Proteins delivered by this vector behave as endogenous antigens, are presented on the cell surface in the context of MHC class I molecules, and generate strong cell-mediated immune responses. In contrast, proteins delivered by Salmonella, which lacks a phagosomal escape mechanism, are treated as exogenous antigens and presented by MHC class II molecules resulting predominantly in Th2 type immune responses. This fundamental disparity between the life cycles of the two vectors accounts for their differential application as antigen delivery vehicles. The present paper includes a review of the most recent advances in the development of these two bacterial vectors for treatment of cancer. Similarities and differences between the two vectors are discussed.
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Affiliation(s)
- Vafa Shahabi
- Advaxis Inc., Research and Development, North Brunswick, NJ, USA
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7
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Simon BE, Ybarra N, Bonneval AO, Barry RA. Plasmid DNA Delivery by d-Alanine-Deficient Listeria monocytogenes. Biotechnol Prog 2008; 22:1394-9. [PMID: 17022679 DOI: 10.1021/bp060177i] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Optimal DNA vaccine efficacy requires circumventing several obstacles, including low immunogenicity, a need for adjuvant, and the costs of purifying injection grade plasmid DNA. Bacterial delivery of plasmid DNA may provide an efficient and low-cost alternative to plasmid purification and injection. Also, the bacterial vector may exhibit potential as an immune adjuvant in vivo. Thus, we elected to examine the use of cell-wall-deficient Listeria monocytogenes as a DNA delivery vehicle in vitro. First, the D-alanine-deficient (Deltadal-dat) L. monocytogenes strain DP-L3506, which undergoes autolysis inside eukaryotic host cells in the absence of D-alanine, was transformed with a plasmid encoding green fluorescent protein (GFP) under control of the CMV promoter (pAM-EGFP). Then COS-7 and MC57G cell lines were infected with the transformed DP-L3506 at various multiplicities of infection (MOI) in the presence or absence of D-alanine. Subsequent GFP expression was observed in both cell lines by 24 h post-infection with DP-L3506(pAM-EGFP). Notably, no GFP positive cells were observed when D-alanine was omitted. Although transfection efficiency initially increased as a result of D-alanine supplementation, high concentration or long-term supplementation led to sustained bacterial growth that killed the infected host cells, resulting in fewer GFP-expressing cells. Thus, efficient DNA delivery by transformed bacteria must balance bacterial invasion and survival with target cell health and survival.
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Affiliation(s)
- Benjamin E Simon
- Department of Veterans Affairs Medical Center, Portland, Oregan, USA.
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8
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Secretory delivery of heterologous proteins in attenuated Vibrio anguillarum for potential use in vaccine design. Appl Microbiol Biotechnol 2008; 79:1027-34. [DOI: 10.1007/s00253-008-1511-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2008] [Revised: 04/15/2008] [Accepted: 04/16/2008] [Indexed: 12/24/2022]
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9
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Parsa S, Pfeifer B. Engineering bacterial vectors for delivery of genes and proteins to antigen-presenting cells. Mol Pharm 2007; 4:4-17. [PMID: 17233543 DOI: 10.1021/mp0600889] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Bacterial vectors offer a biological route to gene and protein delivery with this article featuring delivery to antigen-presenting cells (APCs). Primarily in the context of immune stimulation against infectious disease or cancer, the goal of bacterially mediated delivery is to overcome the hurdles to effective macromolecule delivery. This review will present several bacterial vectors as macromolecule (protein or gene) delivery devices with both innate and acquirable (or engineered) biological features to facilitate delivery to APCs. The review will also present topics related to large-scale manufacture, storage, and distribution that must be considered if the bacterial delivery devices are ever to be used in a global market.
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Affiliation(s)
- Saba Parsa
- Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts 02155, USA
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10
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Igietseme J, Eko F, He Q, Bandea C, Lubitz W, Garcia-Sastre A, Black C. Delivery of Chlamydia vaccines. Expert Opin Drug Deliv 2005; 2:549-62. [PMID: 16296774 DOI: 10.1517/17425247.2.3.549] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The plethora of ocular, genital and respiratory diseases of Chlamydia, including nongonococcal urethritis, cervicitis pelvic inflammatory disease, ectopic pregnancy, tubal factor infertility, conjunctivitis, blinding trachoma and interstitial pneumonia, and chronic diseases that may include atherosclerosis, multiple sclerosis, adult onset asthma and Alzheimer's disease, still pose a considerable public health challenge to many nations. Although antibiotics are effective against Chlamydia when effectively diagnosed, asymptomatic infections are rampart, making clinical presentation of complications often the first evidence of an infection. Consequently, the current medical opinion is that an effective prophylactic vaccine would constitute the best approach to protect the human population from the most severe consequences of these infections. Clinical and experimental studies have demonstration that Chlamydia immunity in animals and humans is mediated by T cells and a complementary antibody response, and the completion of the genome sequencing of several isolates of Chlamydia is broadening our knowledge of the immunogenic antigens with potential vaccine value. Thus, major advances have been made in defining the essential elements of a potentially effective subunit vaccine design and parameters for evaluation. However, the challenge to develop effective delivery systems and human compatible adjuvants that would boost the immune response to achieve long-lasting protective immunity remains an elusive objective in chlamydial vaccine research. In response to evolving molecular and cellular technologies and novel vaccinology approaches, considerable progress is being made in the construction of novel delivery systems, such as DNA and plasmid expression systems, viral vectors, living and nonliving bacterial delivery systems, the use of chemical adjuvants, lipoprotein constructs and the codelivery of vaccines and specific immuno-modulatory biological agonists targeting receptors for chemokines, Toll-like receptors, and costimulatory molecules. The application of these novel delivery strategies to Chlamydia vaccine design could culminate in timely achievement of an efficacious vaccine.
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Affiliation(s)
- Joseph Igietseme
- National Center for Infectious Disease/CDC, Atlanta, GA 30333, USA.
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11
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N/A, 杨 倩. N/A. Shijie Huaren Xiaohua Zazhi 2005; 13:2231-2234. [DOI: 10.11569/wcjd.v13.i18.2231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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12
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Antigen Delivery Systems II: Development of Live Recombinant Attenuated Bacterial Antigen and DNA Vaccine Delivery Vector Vaccines. Mucosal Immunol 2005. [DOI: 10.1016/b978-012491543-5/50060-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Motameni ART, Juncadella IJ, Ananthanarayanan SK, Hedrick MN, Huet-Hudson Y, Anguita J. Delivery of the immunosuppressive antigen Salp15 to antigen-presenting cells by Salmonella enterica serovar Typhimurium aroA mutants. Infect Immun 2004; 72:3638-42. [PMID: 15155675 PMCID: PMC415690 DOI: 10.1128/iai.72.6.3638-3642.2004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A Salmonella enterica serovar Typhimurium aroA-deficient delivery system was used to target the immunosuppressive protein Salp15 to antigen-presenting cells. In vitro and in vivo infections with Salp15-containing Salmonella resulted in an impaired CD4(+)-T-cell activation, suggesting that the protein was produced by antigen-presenting cells in a physiologically active form.
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Affiliation(s)
- Amir-Reza T Motameni
- Department of Biology, University of North Carolina at Charlotte, Charlotte, North Carolina 28223, USA
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14
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Rizos K, Lattemann CT, Bumann D, Meyer TF, Aebischer T. Autodisplay: efficacious surface exposure of antigenic UreA fragments from Helicobacter pylori in Salmonella vaccine strains. Infect Immun 2003; 71:6320-8. [PMID: 14573651 PMCID: PMC219551 DOI: 10.1128/iai.71.11.6320-6328.2003] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Live attenuated Salmonella strains expressing antigens of pathogens are promising oral vaccine candidates. There is growing evidence that the topology of expression of the foreign antigens can have a dramatic impact on the immunogenicity. We examined the potential of the AIDA-I (Escherichia coli adhesin involved in diffuse adherence) autotransporter domain to display antigenic fragments of the urease A subunit of Helicobacter pylori for the induction of a protective immune response. In the murine H. pylori model, protection is mainly mediated by CD4(+) T cells, and we therefore used the AIDA-I expression system to successfully express both nearly full-length UreA and defined T-helper-cell epitopes on the surface of an attenuated Salmonella enterica serovar Typhimurium vaccine strain. Surface exposure of the large UreA fragment or of one UreA T-cell epitope mediated a significant reduction in the level of H. pylori in immunized mice after challenge infection, whereas conventional cytoplasmic expression of UreA in Salmonella had no effect. These results support the concept that surface display increases the immunogenicity of recombinant antigens expressed on oral live vaccine carriers and further demonstrate the feasibility of immunizing against H. pylori with Salmonella vaccine strains expressing CD4(+) T-cell epitopes.
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Affiliation(s)
- Konstantin Rizos
- Creatogen AG, D-86156 Augsburg. Max-Planck-Institut für Infektionsbiologie, Abteilung Molekulare Biologie, D-10117 Berlin, Germany
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15
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Dietrich G, Viret JF, Gentschev I. Haemolysin A and listeriolysin--two vaccine delivery tools for the induction of cell-mediated immunity. Int J Parasitol 2003; 33:495-505. [PMID: 12782050 DOI: 10.1016/s0020-7519(03)00058-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Haemolysin A of Escherichia coli and listeriolysin of Listeria monocytogenes represent important bacterial virulence factors. While such cytolysins are usually the reason for morbidity and even mortality, vaccine researchers have turned haemolysin A and listeriolysin into tools for vaccine delivery. Both cytolysins have found widespread application in vaccine research and are highly suitable for the elicitation of cell-mediated immunity. In this paper, we will review vaccine delivery mediated by the haemolysin A secretion system and listeriolysin and will highlight their use in vaccination approaches against protozoan parasites.
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Affiliation(s)
- Guido Dietrich
- Vaccine Research, Berna Biotech AG, Rehhagstr. 79, CH-3018, Bern, Switzerland.
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16
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Kramer U, Rizos K, Apfel H, Autenrieth IB, Lattemann CT. Autodisplay: development of an efficacious system for surface display of antigenic determinants in Salmonella vaccine strains. Infect Immun 2003; 71:1944-52. [PMID: 12654812 PMCID: PMC152032 DOI: 10.1128/iai.71.4.1944-1952.2003] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
To optimize antigen delivery by Salmonella vaccine strains, a system for surface display of antigenic determinants was established by using the autotransporter secretion pathway of gram-negative bacteria. A modular system for surface display allowed effective targeting of heterologous antigens or fragments thereof to the bacterial surface by the autotransporter domain of AIDA-I, the Escherichia coli adhesin involved in diffuse adherence. A major histocompatibility complex class II-restricted epitope, comprising amino acids 74 to 86 of the Yersinia enterocolitica heat shock protein Hsp60 (Hsp60(74-86)), was fused to the AIDA-I autotransporter domain, and the resulting fusion protein was expressed at high levels on the cell surface of E. coli and Salmonella enterica serovar Typhimurium. Colonization studies in mice vaccinated with Salmonella strains expressing AIDA-I fusion proteins demonstrated high genetic stability of the generated vaccine strain in vivo. Furthermore, a pronounced T-cell response against Yersinia Hsp60(74-86) was induced in mice vaccinated with a Salmonella vaccine strain expressing the Hsp60(74-86)-AIDA-I fusion protein. This was shown by monitoring Yersinia Hsp60-stimulated IFN-gamma secretion and proliferation of splenic T cells isolated from vaccinated mice. These results demonstrate that the surface display of antigenic determinants by the autotransporter pathway deserves special attention regarding the application in live attenuated Salmonella vaccine strains.
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MESH Headings
- Adhesins, Escherichia coli/genetics
- Adhesins, Escherichia coli/immunology
- Adhesins, Escherichia coli/metabolism
- Animals
- Antigens, Bacterial/genetics
- Antigens, Bacterial/immunology
- Antigens, Bacterial/metabolism
- Antigens, Surface/genetics
- Antigens, Surface/immunology
- Antigens, Surface/metabolism
- Chaperonin 60/genetics
- Chaperonin 60/immunology
- Chaperonin 60/metabolism
- Female
- Genetic Vectors
- Gram-Negative Bacteria/genetics
- Gram-Negative Bacteria/immunology
- Immunization
- Interferon-gamma/metabolism
- Mice
- Mice, Inbred C57BL
- Recombinant Fusion Proteins/immunology
- Salmonella Vaccines/genetics
- Salmonella Vaccines/immunology
- Salmonella Vaccines/metabolism
- T-Lymphocytes/immunology
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Affiliation(s)
- Uwe Kramer
- Institut für Medizinische Mikrobiologie und Krankenhaushygiene, Universität Tübingen, D-72076 Tübingen, Germany
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17
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Abstract
The ultimate goal of current chlamydial vaccine efforts is to utilise either conventional or modern vaccinology approaches to produce a suitable immunisation regimen capable of inducing a sterilising, long-lived heterotypic protective immunity at mucosal sites of infection to curb the severe morbidity and worldwide prevalence of chlamydial infections. This lofty goal poses tremendous challenges that include the need to clearly define the relevant effectors mediating immunity, the antigens responsible for inducing these effectors, the anti-chlamydial action(s) of effectors, and establishment of the most effective method of vaccine delivery. Tackling these challenges is further compounded by the biological complexity of chlamydia, the existence of multiple serovariants, the capacity to induce both protective and deleterious immune effectors, and the occurrence of asymptomatic and persistent infections. Thus, novel molecular, immunological and genetic approaches are urgently needed to extend the frontiers of current knowledge, and develop new paradigms to guide the production of an effective vaccine regimen. Progress made in the last 15 years has culminated in various paradigm shifts in the approaches to designing chlamydial vaccines. The dawn of the current immunological paradigm for antichlamydial vaccine design has its antecedence in the recognition that chlamydial immunity is mediated primarily by a T helper type1 (Th1) response, requiring the induction and recruitment of specific T cells into the mucosal microenvironment. Additionally, the ancillary role of humoral immune response in complementing the Th1-driven protective immunity, through ensuring adequate memory and optimal Th1 response during a reinfection, has been recognised. With continued progress in chlamydial genomics and proteomics, select chlamydial proteins, including structural, membrane and secretory proteins, are being targeted as potential subunit vaccine candidates. However, the development of an effective adjuvant, delivery vehicle or system for a potential subunit vaccine is still an elusive objective in these efforts. Promising delivery vehicles include DNA and virus vectors, bacterial ghosts and dendritic cells. Finally, a vaccine still represents the best approach to protect the greatest number of people against the ocular, pulmonary and genital diseases caused by chlamydial infections. Therefore, considering the urgency and the enormity of these challenges, a partially protective vaccine preventing certain severe sequelae would constitute an acceptable short-term goal to control Chlamydia. However, more research efforts and support are needed to achieve the worthy goal of protecting a significant number of the world's population from the devastating consequences of chlamydial invasion of the human mucosal epithelia.
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Affiliation(s)
- Joseph U Igietseme
- Microbiology & Immunology, Morehouse School of Medicine, 720 Westview Drive SW, Atlanta, Georgia 30310, USA.
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18
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Devico AL, Fouts TR, Shata MT, Kamin-Lewis R, Lewis GK, Hone DM. Development of an oral prime-boost strategy to elicit broadly neutralizing antibodies against HIV-1. Vaccine 2002; 20:1968-74. [PMID: 11983256 DOI: 10.1016/s0264-410x(02)00080-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Given the increasing incidence of HIV-1 infection world-wide, an affordable, effective vaccine is probably the only way that this virus will be contained. Accordingly, our group is developing an oral prime-boost strategy with the primary goal of eliciting broadly neutralizing antibodies against HIV-1 to provide sterilizing immunity for this virus. Our secondary goal is to elicit broadly cross-reactive anti-viral CD8(+) T cells by this strategy to blunt any breakthrough infections that occur after vaccination of individuals who fail to develop sterilizing immunity. This article describes our progress in the use of the live attenuated intracellular bacteria, Salmonella and Shigella, as oral delivery vehicles for DNA vaccines and the development of conformationally constrained HIV-1 Env immunogens that elicit broadly neutralizing antibodies.
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MESH Headings
- AIDS Vaccines/administration & dosage
- AIDS Vaccines/immunology
- Administration, Oral
- Animals
- Bacterial Vaccines/administration & dosage
- Bacterial Vaccines/immunology
- CD4 Antigens/chemistry
- CD4 Antigens/metabolism
- CD8-Positive T-Lymphocytes/immunology
- HIV Antibodies/biosynthesis
- HIV Antibodies/immunology
- HIV Envelope Protein gp120/chemistry
- HIV Envelope Protein gp120/immunology
- HIV Envelope Protein gp120/metabolism
- HIV-1/immunology
- Humans
- Immunity, Mucosal
- Immunization, Secondary
- Macaca mulatta
- Mice
- Models, Molecular
- Protein Conformation
- Protein Interaction Mapping
- Protein Structure, Tertiary
- Receptors, CCR5/metabolism
- Recombinant Fusion Proteins/chemistry
- Recombinant Fusion Proteins/immunology
- Salmonella typhi/immunology
- Salmonella typhimurium/immunology
- Shigella flexneri/immunology
- Vaccination/methods
- Vaccines, Attenuated/administration & dosage
- Vaccines, Attenuated/immunology
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/immunology
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Affiliation(s)
- Anthony L Devico
- Division of Vaccine Research, Institute of Human Virology, University of Maryland Biotechnology Institute, 725 W. Lombard Street, Baltimore, MD 21201, USA
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19
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Al-Mariri A, Tibor A, Lestrate P, Mertens P, De Bolle X, Letesson JJ. Yersinia enterocolitica as a vehicle for a naked DNA vaccine encoding Brucella abortus bacterioferritin or P39 antigen. Infect Immun 2002; 70:1915-23. [PMID: 11895955 PMCID: PMC127831 DOI: 10.1128/iai.70.4.1915-1923.2002] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Brucella is a facultative intracellular parasite that causes brucellosis in animals and humans. The protective immune response against Brucella involves both humoral and cell-mediated immunity. In previous studies, we demonstrated that the T-dominant Brucella antigens bacterioferritin (BFR) and P39 administered either as CpG adjuvant recombinant proteins or as naked-DNA plasmids induced a specific Th1-biased immune response in mice. In order to improve the protection conferred by the BFR and P39 vaccines and to evaluate the additive role of antilipopolysaccharide (anti-LPS) antibodies, we used live attenuated Yersinia enterocolitica serotypes O:3 and O:9 as delivery vectors for naked-DNA plasmids encoding these BFR and P39 antigens. Following two intragastric immunizations in BALB/c mice, the Yersinia vectors harboring a DNA vaccine encoding BFR or P39 induced antigen-specific serum immunoglobulin and Th1-type responses (both lymphocyte proliferation and gamma interferon production) among splenocytes. Moreover, as expected, antibodies recognizing Brucella abortus 544 lipopolysaccharide were detected in O:9-immunized mice but not in O:3-treated animals. Animals immunized with O:9 organisms carrying pCI or with O:9 organisms alone were found to be significantly resistant to infection by B. abortus 544. Our data demonstrated that pCI plasmids encoding BFR or P39 and delivered with live attenuated strains of Yersinia O:3 or O:9 can trigger Th1-type responses. The fact than only O:9 vectors induced a highly significant protective immunity against B. abortus 544 infection pointed out the crucial role of anti-LPS antibodies in protection. The best protection was conferred by a serotype O:9 strain carrying pCIP39, confirming the importance of the P39 T-cell antigen in this mechanism.
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Affiliation(s)
- Ayman Al-Mariri
- Unité de Recherche en Biologie Moléculaire, Laboratoire d'Immunologie et de Microbiologie, Facultés Universitaires Notre-Dame de la Paix, B-5000 Namur, Belgium
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20
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Gentschev I, Dietrich G, Spreng S, Pilgrim S, Stritzker J, Kolb-Mäurer A, Goebel W. Delivery of protein antigens and DNA by attenuated intracellular bacteria. Int J Med Microbiol 2002; 291:577-82. [PMID: 11890559 DOI: 10.1078/1438-4221-00170] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
On the basis of attenuated intracellular bacteria, we have developed two delivery systems for either heterologous proteins or DNA vaccine vectors. The first system utilizes attenuated strains of Gram-negative bacteria which are engineered to secrete heterologous antigens via the alpha-hemolysin secretion system (type I) of Escherichia coli. The second system is based on attenuated suicide strains of Listeria monocytogenes, which are used for the direct delivery of eukaryotic antigen expression vectors into professional antigen-presenting cells (APC) like macrophages and dendritic cells in vitro and can be also used in animal models.
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21
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Bruña-Romero O, Rodriguez A. Dendritic cells can initiate protective immune responses against malaria. Infect Immun 2001; 69:5173-6. [PMID: 11447201 PMCID: PMC98615 DOI: 10.1128/iai.69.8.5173-5176.2001] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An understanding of the antigen presentation mechanisms that mediate induction of protective immune responses against malaria is essential for the development of successful immunization approaches. Here we show that dendritic cells presenting Plasmodium yoelii sporozoite antigens are able to activate specific CD4(+) and CD8(+) T cells and initiate protective immune responses against malaria in mice.
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Affiliation(s)
- O Bruña-Romero
- Department of Medical and Molecular Parasitology, New York University School of Medicine, New York, New York 10010, USA
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22
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Andersen C, Hughes C, Koronakis V. Protein export and drug efflux through bacterial channel-tunnels. Curr Opin Cell Biol 2001; 13:412-6. [PMID: 11454445 DOI: 10.1016/s0955-0674(00)00229-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The bacterial protein TolC assembles into an alpha-helical trans-periplasmic tunnel, which is embedded in the outer membrane by a contiguous beta-barrel channel. TolC and its homologues thus provide large exit ducts for a wide range of substrates, including protein toxins and antibacterial drugs, that are engaged by specific recognition proteins in the cytosolic membrane.
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Affiliation(s)
- C Andersen
- Cambridge University Department of Pathology, Tennis Court Road, CB2 1QP, Cambridge, UK
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23
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Dietrich G, Spreng S, Gentschev I, Goebel W. Bacterial systems for the delivery of eukaryotic antigen expression vectors. ANTISENSE & NUCLEIC ACID DRUG DEVELOPMENT 2000; 10:391-9. [PMID: 11079578 DOI: 10.1089/oli.1.2000.10.391] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Attenuated bacterial strains allow the administration of recombinant vaccines via the mucosal surfaces. Whereas attenuated bacteria are generally engineered to express heterologous antigens, a novel approach employs intracellular bacteria for the delivery of eukaryotic antigen expression vectors (so-called DNA vaccines). This strategy allows a direct delivery of DNA to professional antigen-presenting cells (APC), such as macrophages and dendritic cells (DC), through bacterial infection. The bacteria used for DNA vaccine delivery either enter the host cell cytosol after phagocytosis by the APC, for example, Shigella and Listeria, or they remain in the phagosomal compartment, such as Salmonella. Both intracellular localizations of the bacterial carriers seem to be suitable for successful delivery of DNA vaccine vectors.
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Affiliation(s)
- G Dietrich
- University of Würzburg, Lehrstuhl für Mikrobiologie, Germany
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