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Enhanced immunogenicity of foot and mouth disease DNA vaccine delivered by PLGA nanoparticles combined with cytokine adjuvants. Res Vet Sci 2021; 136:89-96. [PMID: 33592449 DOI: 10.1016/j.rvsc.2021.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 12/22/2020] [Accepted: 02/06/2021] [Indexed: 11/23/2022]
Abstract
Although the immunogenicity of DNA vaccines is nonideal, they are still considered as potential alternative vaccine candidates to conventional vaccines. Various DNA delivery systems, including nanoparticles, have been extensively explored and validated to further enhance the immunogenicity of DNA vaccines. DNA vaccines are considered as alternative vaccine candidates. Various DNA delivery systems, including nanoparticles, have been extensively explored to enhance the immunogenicity of DNA vaccines. In this study, positively charged Poly (D, l-lactide-co-glycolic acid) (PLGA) nanoparticles were generated and characterized as a delivery system for O-serotype foot-and-mouth DNA vaccine. A recombinant plasmid encoding swine interleukin (IL)-18, IL-2, or granulocyte-macrophage colony-stimulating factor (GM-CSF) gene was introduced into the DNA vaccine to further improve its immunogenicity, which was evaluated in a guinea pig model. PLGA-pVAX-VP013/IL-18 elicited significantly (P = 0.0149) higher FMDV-specific antibody levels than naked DNA before the challenge. The level of neutralizing antibodies induced by PLGA-pVAX-VP013/IL-18, PLGA-pVAX-VP013/IL-2, and PLGA-pVAX-VP013/GM-CSF significantly increased compared with that induced by naked DNA (P < 0.0001). The lymphocyte proliferation assay showed that cellular immunity induced by PLGA-pVAX-VP013/IL-18 and PLGA-pVAX-VP013/GM-CSF was dramatically enhanced compared with that induced by the inactivated vaccine. The protection by PLGA-pVAX-VP013/IL-18 was consistent with that by the inactivated vaccine post-challenge and was followed by PLGA-pVAX-VP013/GM-CSF. Therefore, cationic PLGA nanoparticles can deliver DNA vaccines and induce humoral and cellular immune responses. The co-administration of FMD DNA vaccine with IL-18 formulated with PLGA nanoparticles was the optimal strategy to improve the immunogenicity of FMD DNA vaccines.
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Mignaqui AC, Ruiz V, Durocher Y, Wigdorovitz A. Advances in novel vaccines for foot and mouth disease: focus on recombinant empty capsids. Crit Rev Biotechnol 2019; 39:306-320. [DOI: 10.1080/07388551.2018.1554619] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ana Clara Mignaqui
- National Agricultural Technology Institute, Institute of Virology and Technological Innovations IVIT, CONICET-INTA, Hurlingham, Buenos Aires, Argentina
| | - Vanesa Ruiz
- National Agricultural Technology Institute, Institute of Virology and Technological Innovations IVIT, CONICET-INTA, Hurlingham, Buenos Aires, Argentina
| | - Yves Durocher
- Human Health Therapeutics Research Center, National Research Council Canada, Montreal, Quebec, Canada
| | - Andrés Wigdorovitz
- National Agricultural Technology Institute, Institute of Virology and Technological Innovations IVIT, CONICET-INTA, Hurlingham, Buenos Aires, Argentina
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Kotla S, Sanghratna Vishanath B, H.J. D, K. G, V.V.S. S, Reddy G. DNA vaccine (P1-2A-3C-pCDNA) co-administered with Bovine IL-18 gives protective immune response against Foot and Mouth Disease in cattle. Vet Microbiol 2016; 193:106-15. [DOI: 10.1016/j.vetmic.2016.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 07/02/2016] [Accepted: 07/06/2016] [Indexed: 10/21/2022]
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Liu H, Wu R, Liu K, Yuan L, Huang X, Wen Y, Ma X, Yan Q, Zhao Q, Wen X, Cao S. Enhanced immune responses against Japanese encephalitis virus using recombinant adenoviruses coexpressing Japanese encephalitis virus envelope and porcine interleukin-6 proteins in mice. Virus Res 2016; 222:34-40. [DOI: 10.1016/j.virusres.2016.05.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/24/2016] [Accepted: 05/24/2016] [Indexed: 12/23/2022]
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Miura R, Kooriyama T, Yoneda M, Takenaka A, Doki M, Goto Y, Sanjoba C, Endo Y, Fujiyuki T, Sugai A, Tsukiyama-Kohara K, Matsumoto Y, Sato H, Kai C. Efficacy of Recombinant Canine Distemper Virus Expressing Leishmania Antigen against Leishmania Challenge in Dogs. PLoS Negl Trop Dis 2015; 9:e0003914. [PMID: 26162094 PMCID: PMC4498809 DOI: 10.1371/journal.pntd.0003914] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/16/2015] [Indexed: 12/02/2022] Open
Abstract
Canine distemper virus (CDV) vaccination confers long-term protection against CDV reinfection. To investigate the utility of CDV as a polyvalent vaccine vector for Leishmania, we generated recombinant CDVs, based on an avirulent Yanaka strain, that expressed Leishmania antigens: LACK, TSA, or LmSTI1 (rCDV-LACK, rCDV-TSA, and rCDV-LmSTI1, respectively). Dogs immunized with rCDV-LACK were protected against challenge with lethal doses of virulent CDV, in the same way as the parental Yanaka strain. To evaluate the protective effects of the recombinant CDVs against cutaneous leishmaniasis in dogs, dogs were immunized with one recombinant CDV or a cocktail of three recombinant CDVs, before intradermal challenge (in the ears) with infective-stage promastigotes of Leishmania major. Unvaccinated dogs showed increased nodules with ulcer formation after 3 weeks, whereas dogs immunized with rCDV-LACK showed markedly smaller nodules without ulceration. Although the rCDV-TSA- and rCDV-LmSTI1-immunized dogs showed little protection against L. major, the cocktail of three recombinant CDVs more effectively suppressed the progression of nodule formation than immunization with rCDV-LACK alone. These results indicate that recombinant CDV is suitable for use as a polyvalent live attenuated vaccine for protection against both CDV and L. major infections in dogs.
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Affiliation(s)
- Ryuichi Miura
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Takanori Kooriyama
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Misako Yoneda
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Akiko Takenaka
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Miho Doki
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Goto
- Department of Molecular Immunology, School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Chizu Sanjoba
- Department of Molecular Immunology, School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuyuki Endo
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Tomoko Fujiyuki
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Akihiro Sugai
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | | | - Yoshitsugu Matsumoto
- Department of Molecular Immunology, School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroki Sato
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Chieko Kai
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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Zeng Y, You X, Liu L, He J, Zhu C, Yu M, Ma X, Wu Y. The immune effects of multiple antigen peptides containing the mimic epitopes of the adhesion protein of Mycoplasma genitalium. Can J Microbiol 2013; 59:479-84. [PMID: 23826957 DOI: 10.1139/cjm-2013-0204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The purpose of this study was to investigate the humoral and cellular immune responses stimulated by multiple antigen peptides (MAPs) containing the mimic epitopes of Mycoplasma genitalium adhesion protein (MgPa). Three MAPs containing the mimic epitopes of MgPa were synthesized on a branched polylysine matrix. After purification and characterization, these MAPs were used to immunize BALB/c mice. The immunoglobulin G (IgG) antibody and the subtype of IgG antibody in the serum of the immunized mice were detected by indirect ELISA (enzyme-linked immunosorbent assay). The proliferation of the spleen lymphocyte was detected using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) assay. The gamma interferon (IFN-γ) and interleukin-4 (IL-4) levels in the cultured supernatant of spleen lymphocytes were measured by ELISA. The 3 different MAPs were prepared with high purity. Levels of IgG, IgG1, and IgG2a antibodies were elevated in the mice serum immunized by all 3 MAPs. The major antibody isotype was IgG2a. Importantly, mice immunized with a mixture of the 3 MAPs produced significantly more antibodies than those immunized with a single MAP (p < 0.05). Moreover, these MAPs could stimulate the proliferation of spleen lymphocytes of immunized mice and induce the production of IFN-γ and IL-4. The IFN-γ and IL-4 levels stimulated by the mixed MAPs were significantly higher than those stimulated by a single MAP (p < 0.01). The 3 different MAPs could induce strong cellular and humoral immune responses. The immunoreactivity of the mixed MAPs was stronger than that of the single MAP.
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Affiliation(s)
- Yanhua Zeng
- Institute of Pathogenic Biology, University of South China, Hengyang, 421001, People's Republic of China
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Kim SB, Kim SJ, Lee BM, Han YW, Rahman MM, Uyangaa E, Kim JH, Choi JY, Yoo DJ, Kim K, Eo SK. Oral administration of Salmonella enterica serovar Typhimurium expressing swine interleukin-18 induces Th1-biased protective immunity against inactivated vaccine of pseudorabies virus. Vet Microbiol 2011; 155:172-82. [PMID: 21940117 DOI: 10.1016/j.vetmic.2011.08.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/21/2011] [Accepted: 08/29/2011] [Indexed: 01/25/2023]
Abstract
Enhancing and/or modulating innate and adaptive immunity by cytokines appears to be greatly useful to provide effective protective immunity against infectious diseases. However, an effective delivery system for mass administration in livestock industry is needed because of limitations such as cost, labor, time, and protein stability. Here the immunomodulatory functions of swine interleukine-18 (swIL-18), known as IFN-γ-inducing factor (IGIF), were evaluated in a vaccination model of pseudorabies virus (PrV) using attenuated Salmonella enterica serovar Typhimurium as the oral delivery system. The oral administration of S. enterica serovar Typhimurium expressing swIL-18 prior to vaccination with inactivated PrV vaccine induced enhanced levels of serum PrV-specific IgG and its IgG2 isotype, compared to administration of S. enterica serovar Typhimurium harboring the empty vector. Furthermore, S. enterica serovar Typhimurium expressing swIL-18 mounted Th1-biased cellular immune responses against PrV antigen, as evaluated by the production of IFN-γ and IL-4 from peripheral blood mononuclear cells of piglets. Subsequently, Th1-biased immunity induced by S. enterica serovar Typhimurium expressing swIL-18 showed rapid response and rendered piglets displayed more alleviated clinical signs following the virulent PrV challenge. Also, this alleviation of clinical signs was further confirmed by the reduction of nasal excretion of PrV after challenge. The present study demonstrates the extended use of immunomodulatory functions of swIL-18 orally delivered by attenuated S. enterica serovar Typhimurium.
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Affiliation(s)
- Seong Bum Kim
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju 561-756, Republic of Korea
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van Montfort T, Melchers M, Isik G, Menis S, Huang PS, Matthews K, Michael E, Berkhout B, Schief WR, Moore JP, Sanders RW. A chimeric HIV-1 envelope glycoprotein trimer with an embedded granulocyte-macrophage colony-stimulating factor (GM-CSF) domain induces enhanced antibody and T cell responses. J Biol Chem 2011; 286:22250-61. [PMID: 21515681 DOI: 10.1074/jbc.m111.229625] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
An effective HIV-1 vaccine should ideally induce strong humoral and cellular immune responses that provide sterilizing immunity over a prolonged period. Current HIV-1 vaccines have failed in inducing such immunity. The viral envelope glycoprotein complex (Env) can be targeted by neutralizing antibodies to block infection, but several Env properties limit the ability to induce an antibody response of sufficient quantity and quality. We hypothesized that Env immunogenicity could be improved by embedding an immunostimulatory protein domain within its sequence. A stabilized Env trimer was therefore engineered with the granulocyte-macrophage colony-stimulating factor (GM-CSF) inserted into the V1V2 domain of gp120. Probing with neutralizing antibodies showed that both the Env and GM-CSF components of the chimeric protein were folded correctly. Furthermore, the embedded GM-CSF domain was functional as a cytokine in vitro. Mouse immunization studies demonstrated that chimeric Env(GM-CSF) enhanced Env-specific antibody and T cell responses compared with wild-type Env. Collectively, these results show that targeting and activation of immune cells using engineered cytokine domains within the protein can improve the immunogenicity of Env subunit vaccines.
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Affiliation(s)
- Thijs van Montfort
- Laboratory of Experimental Virology, Department of Medical Microbiology, Center for Infection and Immunity Amsterdam, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
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