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Nazarian S, Olad G, Abdolhamidi R, Motamedi MJ, Kazemi R, Kordbacheh E, Felagari A, Olad H, Ahmadi A, Bahiraee A, Farahani P, Haghighi L, Hassani F, Hajhassan V, Nadi M, Sheikhi A, Salimian J, Amani J. Preclinical Study of Formulated Recombinant Nucleocapsid protein, the Receptor Binding Domain of the Spike protein, and Truncated Spike (S1) Protein as Vaccine Candidates against COVID-19 in Animal Models. Mol Immunol 2022; 149:107-118. [PMID: 35802999 PMCID: PMC9222294 DOI: 10.1016/j.molimm.2022.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/13/2022] [Accepted: 06/19/2022] [Indexed: 10/31/2022]
Abstract
Background Methods Results Conclusion
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Boroujeni NA, Khatouni SB, Motamedi MJ, Afraz S, Jafari M, Salmanian AH. Root-preferential expression of Newcastle virus glycoproteins driven by NtREL1 promoter in tobacco hairy roots and evaluation of oral delivery in mice. Transgenic Res 2022; 31:201-213. [PMID: 35006541 DOI: 10.1007/s11248-021-00295-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 12/29/2021] [Indexed: 11/29/2022]
Abstract
Newcastle disease virus (NDV) is a lethal virus in avian species with a disastrous effect on the poultry industry. NDV is enveloped by a host-derived membrane with two glycosylated haemagglutinin-neuraminidase (HN) and Fusion (F) proteins. NDV infection usually leads to death within 2-6 days, so the preexisting antibodies provide the most critical protection for this infection. The HN and F glycoproteins are considered the main targets of the immune system. In the present study, two constructs harboring the HN or F epitopes are sub-cloned separately under the control of a root-specific promoter NtREL1 or CaMV35S (35S Cauliflower Mosaic Virus promoter) as a constitutive promoter. The recombinant vectors were transformed into the Agrobacterium tumefaciens strain LBA4404 and then introduced to tobacco (Nicotiana tabacum L.) leaf disk explants. PCR with specific primers was performed to confirm the presence of the hn and f genes in the genome of the regenerated plants. Then, the positive lines were transformed via non-recombinant A. rhizogenes (strain ATCC15834) to develop hairy roots.HN and F were expressed at 0.37% and 0.33% of TSP using the CaMV35S promoter and at 0.75% and 0.54% of TSP using the NtREL1 promoter, respectively. Furthermore, the mice fed transgenic hairy roots showed a high level of antibody responses (IgG and IgA) against rHN and rF proteins.
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Affiliation(s)
- Narges Arkian Boroujeni
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd., 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran
| | - Somayeh Behjat Khatouni
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd., 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran
| | - Mohammad Javad Motamedi
- Department of Molecular Biology and Genetic Engineering, Stem Cell Research Center, Tehran, Iran
| | - Shaghayegh Afraz
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd., 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran
| | - Mahyat Jafari
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd., 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran
| | - Ali-Hatef Salmanian
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd., 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran.
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Zonnar S, Saeedy SAG, Nemati F, Motamedi MJ, Raeespour H, Amani J. Decrescent role of recombinant HSP60 antibody against atherosclerosis in high-cholesterol diet immunized rabbits. Iran J Basic Med Sci 2022; 25:32-38. [PMID: 35656453 PMCID: PMC9118271 DOI: 10.22038/ijbms.2021.56382.12580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 10/26/2021] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Atherosclerosis is the main cause of cardiovascular disease (CVD) which has a key role in the development of coronary artery disease (CAD). Based on clinical studies, HSP60 is the only HSP that can cause atherosclerosis. In this paper, the expression level of HSP60 and the pathogenic degree of its cloned part was investigated in atherosclerosis condition. MATERIALS AND METHODS After the designation of the specific primers for HSP60, PCR was done by the Pfu enzyme. Subsequently, the PCR products were cloned into a prokaryotic expression vector pET-28a. The resultant recombinant vector was transferred in BL21 and purified. Purification of protein was done by the Nickel affinity column. After confirmation of Western blotting and HSP60 protein purification, purified protein concentration was measured by the Bradford method, and purity was analyzed by SDS PAGE 12%. New Zealand rabbits were tested as an animal model. At the next step, the recombinant protein was injected into the animal model that was on a fatty diet. RESULTS The prokaryotic expression plasmid pET28a-hps60 was successfully constructed, the HSP60 protein was expressed and purified in Escherichia coli BL21 (DE3). We found that the rabbit that was receiving the recombinant vaccine with the fatty diet showed a lower amount of fat deposition at the media endothelial level than the rabbit which received only the fatty diet. CONCLUSION Taking recombinant protein concomitant with a fatty diet, causes betterment of atherosclerosis via decreasing aggregation of cholesterol and thickness of the endothelial media.
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Affiliation(s)
- Saghar Zonnar
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Fahimeh Nemati
- Department of Biotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University (IAUPS), Tehran, Iran
| | - Mohammad Javad Motamedi
- Department of Plant Bioproducts, Institute of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Hamidreza Raeespour
- Department of Genetics, Islamic Azad University, Varamin Pishva Branch, Tehran, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran,Corresponding author: Jafar Amani. Applied Microbiology Research Center, System Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Vanak Sq. Molasadra St. Tehran, Iran. Tel: +98-21-82482592; Fax: +98-21-88068924;
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Poorhassan F, Nemati F, Saffarian P, Mirhosseini SA, Motamedi MJ. Design of a chitosan-based nano vaccine against epsilon toxin of Clostridium perfringens type D and evaluation of its immunogenicity in BALB/c mice. Res Pharm Sci 2021; 16:575-585. [PMID: 34760006 PMCID: PMC8562408 DOI: 10.4103/1735-5362.327504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 03/03/2021] [Accepted: 09/26/2021] [Indexed: 11/04/2022] Open
Abstract
Background and purpose Clostridium perfringens is an anaerobic, spore-forming, and pathogenic bacterium that causes intestinal diseases in humans and animals. In these cases, therapeutic intervention is challenging; because the disease progresses much rapidly. This bacterium can produce 5 main toxins (alpha, beta, epsilon, iota, and a type of enterotoxin) among which the epsilon toxin (ETX) is used for bioterrorism. This toxin can be prevented by immunization with specific immunogenic vaccines. In the present research, we aimed at developing a recombinant chitosan-based nano-vaccine against ETX of C. perfringens and evaluate its effects on the antibody titration against epsilon toxin in BALB/c mice as the vaccine model. Experimental approach The etx gene from C. perfringens type D was cloned and expressed in E. coli. After analysis by SDS-PAGE and western blotting, the expressed products were purified, and the obtained proteins were used for immunization in mice as a chitosan nanoparticle containing recombinant, purified ETX, and protein. Findings/Results The results of ELISA showed that IgA antibody serum level increased sufficiently using recombinant protein with nanoparticle as an oral and injectable formulation. IgG antibody titers increased significantly after administrating the recombinant proteins with nanoparticles through both oral delivery and intravenous injection. Conclusion and implication In conclusion, the recombinant ETX is suggested as a good candidate for vaccine production against diseases caused by ETX of C. perfringens type D.
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Affiliation(s)
- Farnaz Poorhassan
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, I.R. Iran
| | - Fahimeh Nemati
- Department of Biotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, I.R. Iran
| | - Parvaneh Saffarian
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, I.R. Iran
| | - Seyed Ali Mirhosseini
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, I.R. Iran
| | - Mohammad Javad Motamedi
- Molecular Biology Department, Green Gene Company, Tehran, I.R. Iran.,Department of Molecular Biology and Genetic Engineering, Stem Cell Technology Research Center, Tehran, I.R. Iran
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Roghanian P, Zare Karizi S, Motamedi MJ, Kazemi R, Khoobbakht D, Amani J. Designing and determining immunogenicity of a recombinant protein due to producing a new vaccine against Enterotoxigenic Escherichia coli containing CfaE and CotD subunits. J Immunoassay Immunochem 2021; 42:525-542. [PMID: 33834940 DOI: 10.1080/15321819.2021.1906890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Enterotoxigenic Escherichia coli (ETEC) is one of the most common bacterial causes of mortalities in developing countries due to diarrhea. Since mucosal immune responses to CFs can prevent the disease, a chimeric protein containing ETEC's CFA/I (CfaE) tip subunits and CS2 (CotD) sub-structural units is developed to produce effective vaccine. Using bioinformatics tools, the chimeric construct was analyzed and then the optimized gene was synthesized and expressed in E. coli. The recombinant protein was expressed and purified by the Ni-NTA chromatography column and confirmed by anti-his tag antibody by western blotting. Mice were immunized with recombinant protein, and the IgG and IgA antibodies' titrations of the sera were analyzed by ELISA. In addition, the immunogenicity and protective efficacy against the live ETEC bacteria in the challenge test were determined. Western blot analysis verified the chimeric protein expression of CotD-CfaE. The outcome of ELISA was a substantial improvement in the IgG antibody titer in immunized mice. In a live ETEC challenge, the survival percentage of 30% was shown for immunized mice. The developed recombinant chimeric protein could be suggested as an effective component in producing an efficient vaccine against Enterotoxigenic E. coli with other crucial subunits, different immunization route, and other factors.
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Affiliation(s)
- Pooneh Roghanian
- Department of Genetics, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Shohreh Zare Karizi
- Department of Genetics and Biotechnology, School of Biological Science, Varamin-Pishva, Branch Islamic Azad University, Varamin, Iran
| | | | | | - Dorna Khoobbakht
- Department of Genetics, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Motamedi MJ, Ebrahimi MM, Shahsavandi S, Amani J, Kazemi R, Jafari M, Salmanian AH. The Immunogenicity of a Novel Chimeric Hemagglutinin-Neuraminidase-Fusion Antigen from Newcastle Disease Virus by Oral Delivery of Transgenic Canola Seeds to Chickens. Mol Biotechnol 2020; 62:344-354. [PMID: 32246385 DOI: 10.1007/s12033-020-00254-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Newcastle disease (ND) is considered as one of the most devastating infectious diseases targeting domestic birds and has considerable threat to the commercial poultry production. Two surface glycoproteins, hemagglutinin-neuraminidase (HN) and fusion (F), act as antigens in the virus structure and also play important roles in infecting host cells. In the current study, the expression of the chimeric HN-F protein in canola seeds and its immunogenicity in chickens were investigated. The HN-F gene was cloned downstream of the fatty acid elongase 1 (FAE1) promoter in the binary expression vector, pBI1400-HN-F, and introduced into rapeseed (Brassica napus L.) using Agrobacterium-mediated transformation. The amount of the HN-F glycoprotein was estimated up to 0.18% and 0.11% of the total soluble protein (TSP) in transgenic seeds and leaves of canola, respectively. Confirmatory analyses of 36 transgenic lines revealed that the HN-F gene was integrated into the genome. Subsequently, HN-F protein could be expressed and accumulated in the seed tissue. Specific pathogen-free (SPF) chickens immunized orally with recombinant HN-F showed a significant rise in specific and hemagglutination inhibition (HI) antibodies 35 to 42 days post the first administration. The results implied the potential of transgenic canola seed-based expression for oral delivery of NDV immunogenic glycoproteins.
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Affiliation(s)
- Mohammad Javad Motamedi
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd. 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran
| | - Mohammad Majid Ebrahimi
- Agricultural Research Education and Extension Organization, Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - Shahla Shahsavandi
- Agricultural Research Education and Extension Organization, Razi Vaccine and Serum Research Institute, Karaj, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Rouhollah Kazemi
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd. 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran
| | - Mahyat Jafari
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd. 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran
| | - Ali-Hatef Salmanian
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrake- Pajoohesh Blvd. 15th Km, Tehran-Karaj Highway, P.O. Box 14965-161, Tehran, Iran.
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Khoobbakht D, Zare Karizi S, Motamedi MJ, Kazemi R, Roghanian P, Amani J. Immunogenicity Evaluation of Chimeric Subunit Vaccine Comprising Adhesion Coli Surface Antigens from Enterotoxigenic Escherichia coli. J Mol Microbiol Biotechnol 2020; 29:91-100. [PMID: 32645695 DOI: 10.1159/000509708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 06/24/2020] [Indexed: 11/19/2022] Open
Abstract
Enterotoxigenic Escherichia coli (ETEC) is the most common agent of diarrhea morbidity in developing countries. ETEC adheres to host intestinal epithelial cells via various colonization factors. The CooD and CotD proteins play a significant role in bacteria binding to the intestinal epithelial cells as adhesin tip subunits of CS1 and CS2 pili. The purpose here was to design a new construction containing cooD and cotD genes and use several types of bioinformatics software to predict the structural and immunological properties of the designed antigen. The fusion gene was synthesized with codon bias of E. coli in order to increase the expression level of the protein. The amino acid sequences, protein structure, and immunogenicity properties of potential antigens were analyzed in silico. The chimeric protein was expressed in E. coliBL21 (DE3). The antigenicity of the recombinant proteins was verified by Western blotting and ELISA. In order to assess the induced immunity, the immunized mice were challenged with wild-type ETEC by an intraperitoneal route. Immunological analyses showed the production of a high titer of IgG serum with no sign of serum-mucosal IgA antibody response. The result of the challenge assay showed that 30% of immunized mice survived. The results of this study showed that CooD-CotD recombinant protein can stimulate immunity against ETEC. The designed chimera could be a prototype for the subunit vaccine, which is worthy of further consideration.
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Affiliation(s)
- Dorna Khoobbakht
- Department of Genetics, Faculty of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shohreh Zare Karizi
- Department of Genetics and Biotechnology, School of Biological Science, Varamin-Pishva, Branch of Islamic Azad University, Varamin, Iran
| | | | | | - Pooneh Roghanian
- Department of Genetics, Faculty of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran,
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Karimi Rahjerdi A, Jafari M, Motamedi MJ, Amani J, Salmanian AH. Immunogenic Evaluation of Bivalent Vaccine Candidate against Enterohemorrhagic and Enterotoxigenic Escherichia coli. Iran J Immunol 2019; 16:200-211. [PMID: 31552829 DOI: 10.22034/iji.2019.80271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND Caused by bacterial, viral, and parasitic pathogens, diarrhea is the second leading cause of death among children under five. Two strains of E. coli, namely Enterotoxigenic, ETEC and Enterohemorrhagic EHEC are the most important causes of this disease in developing countries. EHEC is a major causative agent of bloody diarrhea and hemorrhagic uremic syndrome, while ETEC is the most important cause of diarrhea in neonates and travelers. OBJECTIVES To evaluate the immunologic properties of a subunit vaccine candidate comprising the main immunogenic epitopes from these two bacterial strains. METHODS The construct comprised of LTB and CfaB antigens from ETEC, and Intimin and Stx2B antigens from EHEC, was designed, analyzed and synthesized using bioinformatics methods. The chimeric gene was sub-cloned in the expression vector and expressed in E. coli host. The purified chimera protein was injected subcutaneously into the experimental animals. The production of specific antibodies was confirmed by immunological methods, and the protection capacity was evaluated by the challenge of immunized mice with the pathogenic bacteria. RESULTS Chimeric recombinant protein was able to increase IgG titer. Neutralization assay indicated that the antibodies generated against LtB moiety were able to neutralize ETEC toxin. In animal challenge study, all non-immune mice died within 3 days after the injection of toxin, but all immunized mice survived from Stx toxin. CONCLUSIONS The immunity to both ETEC and EHEC bacteria is significant, and this structure can be considered as a candidate for vaccine production against these bacterial strains.
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Affiliation(s)
- Ahmad Karimi Rahjerdi
- Department of Plant Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Ghaffari Marandi BH, Zolfaghari MR, Kazemi R, Motamedi MJ, Amani J. Immunization against Vibrio cholerae, ETEC, and EHEC with chitosan nanoparticle containing LSC chimeric protein. Microb Pathog 2019; 134:103600. [PMID: 31202906 DOI: 10.1016/j.micpath.2019.103600] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/12/2019] [Accepted: 06/13/2019] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Severe intestinal infections caused by V. cholerae, ETEC and EHEC have contributed to the mortality rate in developing countries. Vibrio Cholera, ETEC and EHEC bacterium with the production of CT, LT and Stx2 toxins respectively lead to severe watery and bloody diarrhea. This study aimed to investigate a trimeric vaccine candidate containing recombinant chimeric protein, encapsulate the protein in chitosan nanoparticles and assess its immunogenicity. METHODS The LSC recombinant gene was used. It is composed of LTB (L), STXB (S) and CTXB (C) subunits respectively. The LSC recombinant protein was expressed and purified and confirmed by western blotting. The purified protein was encapsulated in chitosan nanoparticles, and its size was measured. BalB/c mice were immunized in four groups through oral and injection methods by LSC protein. The antibody titer was then evaluated by ELISA, and finally, the challenge test of the toxins from all three bacteria was done on the immunized mouse. RESULTS After expression and purification LSC protein size of nanoparticles containing protein was measured at 104.6 nm. Nanoparticles were able to induce systemic and mucosal immune responses by generating a useful titer of IgG and IgA. The challenge results with LT, CT and Stx toxins showed that the LSC protein might partially neutralize the effect of toxins. CONCLUSION LSC chimeric protein with the simultaneous three essential antigens have a protective effect against the toxins produced by ETEC, EHEC and Vibrio cholera bacteria and it can be used in vaccines to prevent Diarrhea caused by these three bacteria.
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Affiliation(s)
| | - Mohammad Reza Zolfaghari
- Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran
| | | | | | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Motamedi MJ, Shahsavandi S, Amani J, Kazemi R, Takrim S, Jafari M, Salmanian AH. Immunogenicity of the Multi-Epitopic Recombinant Glycoproteins of Newcastle Disease Virus: Implications for the Serodiagnosis Applications. Iran J Biotechnol 2018; 16:e1749. [PMID: 31457034 PMCID: PMC6697832 DOI: 10.21859/ijb.1749] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 05/19/2018] [Accepted: 05/28/2018] [Indexed: 11/27/2022]
Abstract
Background Newcastle disease virus (NDV) is a dangerous viral disease, infecting a broad range of birds, and has a fatal effect on the poultry industries. The attachment and consequently fusion of the virus to the host cell membrane is directed by the two superficial glycoproteins, the hemagglutinin-neuraminidase (HN) and the fusion (F) which is considered as the important targets for the poultry immune response. Objectives The principal goal of this investigation was to realize the potential efficacy of the E. coli expression system for the production of the multi-epitopic HN, and F proteins with respect to the ability for the stimulation of the immune system and production of the cross-reactive antibodies in mice. Materials and Methods The recombinant HN and F (rHN, rF) have accumulated almost 40% of the total bacterial proteins. The presence of rHN and rF proteins recognized by the Western blotting with specific anti-HN, anti-F, anti-Newcastle B1, and anti-poly 6x His-tag antibodies. Furthermore, both rHN and rF have shown the specific reactivity against the Newcastle B1 antiserum as a standard strain. Results The ELISA analysis showed that the higher dilutions of the antibody against Newcastle B1 could react with the as least quantity as 100 ng of the purified rHN, and rF. Cross-reactivity analysis of the sera from the mice immunized with Newcastle B1 in two time points indicated that the raise of anti-Newcastle B1, anti-HN and anti-F antibodies peaked at 28 days post immunization (dpi). Moreover, temporal variation in IgG titration between both time points was significant at 5% probability level. Conclusion The results provided valuable information about the cross-reactivity patterns and biological activity of the multi-epitopic proteins compared to the NDV standard strain which was determined by the Western blotting and ELISA.
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Affiliation(s)
- Mohammad Javad Motamedi
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Shahla Shahsavandi
- Razi Vaccine and Serum Research Institute, Agricultural Research Education and Extension Organization, Karaj, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Rouhollah Kazemi
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Somayeh Takrim
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Mahyat Jafari
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Ali-Hatef Salmanian
- Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Hosseini ZS, Amani J, Baghbani Arani F, Nazarian S, Motamedi MJ, Shafighian F. Immunogenicity of the nanovaccine containing intimin recombinant protein in the BALB/c mice. Clin Exp Vaccine Res 2018; 7:51-60. [PMID: 29399580 PMCID: PMC5795045 DOI: 10.7774/cevr.2018.7.1.51] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 11/29/2017] [Accepted: 12/20/2017] [Indexed: 12/17/2022] Open
Abstract
Purpose Escherichia coli O157:H7 is one of the most important pathogens which create hemorrhagic colitis and hemolytic uremic syndrome in human. It is one of the most prevalent causes of diarrhea leading to death of many people every year. The first diagnosed gene in the locus of enterocyte effacement pathogenicity island is eae gene. The product of this gene is a binding protein called intimin belonging to the group of external membrane proteins regarded as a good stimulants of the immune system. Chitosan with its lipophilic property is an environmentally friendly agent able to return to the environment. Materials and Methods Intimin recombinant protein was expressed in pET28a vector with eae gene and purification was performed using Ni-NTA and finally the recombinant protein was approved through western blotting. This protein was encapsulated using chitosan nanoparticles and the size of nanoparticles was measured by Zetasizer. Intimin encapsulated was prescribed for three sessions among three groups of oral, injection, and oral-injection using Chitosan nanoparticles. Challenge was performed for all three groups with 108E. coli O157:H7 bacteria. Results Intimin produced by chitosan nanoparticles improves immunological responses through the adjuvant nature of chitosan nanoparticles. Chitosan may be used as a carrier for transportation of the prescribed vaccine. Among the mice, encapsulated intimin could be able to provide suitable titers of IgG and IgA by the aid of chitosan nanoparticles. Results of mice challenge showed that decreased the bacterial shedding significantly. Conclusion Results showed that the chitosan nanovaccine with intimin protein may be used as a suitable candidate vaccine against E. coli O157:H7.
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Affiliation(s)
- Zahra Sadat Hosseini
- Department of Genetics and Biotechnology, School of Biological Science, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
| | - Jafar Amani
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Fahimeh Baghbani Arani
- Department of Genetics and Biotechnology, School of Biological Science, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
| | - Shahram Nazarian
- Department of Biology, Faculty of Science, Imam Hossain University, Tehran, Iran
| | | | - Fatemeh Shafighian
- Pharmaceutical Sciences Branch, Pharmaceutical Sciences Research Center, Islamic Azad University (IAUPS), Tehran, Iran
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Khani-Jeihouni A, Ranjbari S, Khiyali Z, Moradi Z, Motamedi MJ. Evaluation of the Factors Associated with AIDS Prevention Performance among Male Barbers Based on the Health Belief Model in Fasa. J Edu Commun Health 2017. [DOI: 10.21859/jech.3.4.59] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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