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Sadeghi S, Bandehpour M, Haji Molla Hoseini M, Sharifnia Z. Intranasal administration of immunogenic poly-epitope from influenza H1N1 and H3N2 viruses adjuvanted with chitin and chitosan microparticles in BALB/c mice. Iran J Basic Med Sci 2021; 24:1126-1137. [PMID: 34804430 PMCID: PMC8591766 DOI: 10.22038/ijbms.2021.58087.12909] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/19/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVES Prevalence of influenza virus, creates the need to achieve an efficient vaccine against it. We examined whether the predicted antigenic epitopes of HA, NP, and M2 proteins of the influenza H1N1 and H3N2 viruses accompanied by chitin and chitosan biopolymers might be relevant to the induction of effective proper mucosal responses. MATERIALS AND METHODS The construct was prepared using B and T cell predicted epitopes of HA, NP, and M2 proteins from the influenza H1N1 and H3N2 viruses by considering haplotype "d" as a dominant allele in the BALB/c mice. Intranasal immunization with purified LPS free recombinant protein together with chitin and chitosan microparticles as adjuvants was administered at an interval of 2 weeks in thirty-five BALB/c female mice which were divided into seven groups. Ten days after the last immunization, humoral and cellular immune responses were examined. RESULTS Elevated systemic IgG2a, IgA, and mucosal IgA revealed a humoral response to the construct. An increase in the number of IFN-γ-producing cells in re-stimulation of splenocytes in the culture medium by poly-tope as well as rise in the concentrations of IL-6, IL-17, and TNF-α along with the regulatory response of IL-10, presented the capacity of the designed protein to provoke significant immune responses. The neutralization test ultimately confirmed the high efficacy of the protein in inhibiting the virus. CONCLUSION The results support the fact that immunogenic poly-tope protein in the presence of chitin and chitosan microparticles as mucosal adjuvants is able to induce humoral and cell-mediated responses in BALB/c mice.
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Affiliation(s)
- Sahar Sadeghi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandehpour
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Biology Research Center, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Haji Molla Hoseini
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zarin Sharifnia
- Cellular and Molecular Biology Research Center, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Hadidi N, Sharifnia Z, Eteghadi A, Shokrgozar MA, Mosaffa N. PEGylated single-walled carbon nanotubes as co-adjuvants enhance expression of maturation markers in monocyte-derived dendritic cells. Nanomedicine (Lond) 2021; 16:171-188. [PMID: 33560153 DOI: 10.2217/nnm-2020-0339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/25/2023] Open
Abstract
Aim: This study investigated the application of phospholipid-PEGylated single-walled carbon nanotubes (PL-PEG-SWCNTs) as a safe co-adjuvant for the commercial recombinant hepatitis B virus vaccine to enhance induction of monocyte-derived dendritic cells (MDDCs) differentiation and activation in vitro as an immune response initiator cell to prompt a long-term immune response after a single dose injection. Methods: Immature MDDCs were exposed to PL-PEG-SWCNTs alone and in combination with hepatitis B vaccine. Results & conclusion: Study results confirm the enhanced expression of maturation markers in human immature MDDCs after PL-PEG-SWCNT exposure. The results suggest that PL-PEG-SWCNT is an efficient co-adjuvant for the commercial recombinant hepatitis B virus vaccine to enhance dendritic cell response stimulation in vitro.
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Affiliation(s)
- Naghmeh Hadidi
- Department of Clinical Research & EM Microscope, Pasteur Institute of Iran (PII), Tehran 1316943551, Iran
| | - Zarin Sharifnia
- Department of Clinical Research & EM Microscope, Pasteur Institute of Iran (PII), Tehran 1316943551, Iran
| | - Atefeh Eteghadi
- Department of Clinical Research & EM Microscope, Pasteur Institute of Iran (PII), Tehran 1316943551, Iran
| | | | - Nariman Mosaffa
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran 198396-3113, Iran
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Alibakhshi A, Bandehpour M, Sharifnia Z, Kazemi B. The development and evaluation of a multi-epitope antigen as a serodiagnostic marker of Toxoplasma gondii infection. ADV CLIN EXP MED 2020; 29:669-675. [PMID: 32573993 DOI: 10.17219/acem/104554] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND Toxoplasma gondii (T. gondii) is a ubiquitous protozoan parasite which causes a serious disease called toxoplasmosis. The high prevalence of T. gondii infection has attracted a great deal of interest in its diagnosis and treatment. The use of pure antigens shows high sensitivity and specificity, but challenges such as cross-reactivity remain diagnostic difficulties. OBJECTIVES The aim of this study was to use 3 surface antigens (SAGs) of T. gondii to design gene-encoding a multi-epitope and immunogenic protein as a serodiagnostic marker. MATERIAL AND METHODS The multi-epitope antigen was expressed using Escherichia coli BL21 (DE3) cells and purified using affinity chromatography. To evaluate acute toxoplasmosis, 95 human sera with anti-T. gondii IgG, 25 human sera without anti-T. gondii IgG and 6 serum samples with nosocomial infections were collected and submitted to an enzyme-linked immunosorbent assay (ELISA) analysis. The potential of purified protein as a diagnostic marker of T. gondii infection was also investigated using ELISA analysis. RESULTS The western blot analysis for both protein expression and purification confirmed that the protein was expressed and purified successfully. The results of validation showed a sensitivity of 72.6% and a specificity of 90.3% for recombinant ELISA. CONCLUSIONS Although this protein showed potential for detecting T. gondii, the sensitivity and specificity were lower than in tests that use the whole body of the parasite.
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Affiliation(s)
- Abbas Alibakhshi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zarin Sharifnia
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Sharifnia Z, Bandehpour M, Kazemi B, Zarghami N. Design and Development of Modified mRNA Encoding Core Antigen of Hepatitis C Virus: a Possible Application in Vaccine Production. Iran Biomed J 2019; 23:57-67. [PMID: 30056690 PMCID: PMC6305823] [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] [MESH Headings] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 04/30/2018] [Accepted: 05/05/2018] [Indexed: 10/06/2023]
Abstract
Background Hepatitis C virus (HCV) is a blood-borne pathogen, resulting in liver cirrhosis and liver cancer. Despite of many efforts in development of treatments for HCV, no vaccine has been licensed yet. The purpose of this study was to design and prepare a specific mRNA, without 5' cap and poly (A) tail transcribed in vitro capable of coding core protein and also to determine its functionality. Methods Candidate mRNA was prepared by in vitro transcription of the designed construct consisting of 5ʹ and 3ʹ untranslated regions of heat shock proteins 70 (hsp70) mRNA, T7 promoter, internal ribosome entry site (IRES) sequences of eIF4G related to human dendritic cells (DCs), and the Core gene of HCV. To design the modified mRNA, the 5' cap and poly (A) tail structures were not considered. DCs were transfected by in vitro-transcribed messenger RNA (IVT-mRNA) and the expressions of green fluorescent protein (GFP), and Core genes were determined by microscopic examination and Western blotting assay. Results Cell transfection results showed that despite the absence of 5' cap and poly (A) tail, the structure of the mRNA was stable. Moreover, the successful expressions of GFP and Core genes were achieved. Conclusion Our findings indicated the effectiveness of a designed IVT-mRNA harboring the Core gene of HCV in transfecting and expressing the antigens in DCs. Considering the simple and efficient protocol for the preparation of this IVT-mRNA and its effectiveness in expressing the gene that it carries, this IVT-mRNA could be suitable for development of an RNA vaccine against HCV.
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Affiliation(s)
- Zarin Sharifnia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Kazemi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nosratollah Zarghami
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Biochemistry and Laboratories Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Sharifnia Z, Bandehpour M, Hamishehkar H, Mosaffa N, Kazemi B, Zarghami N. In-vitro Transcribed mRNA Delivery Using PLGA/PEI Nanoparticles into Human Monocyte-derived Dendritic Cells. Iran J Pharm Res 2019; 18:1659-1675. [PMID: 32184837 PMCID: PMC7059071 DOI: 10.22037/ijpr.2019.1100872] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Induction of protein synthesis by the external delivery of in-vitro transcription-messenger RNA (IVT-mRNA) has been a useful approach in the realm of cell biology, disease treatment, reprogramming of cells, and vaccine design. Therefore, the development of new formulations for protection of mRNA against nucleases is required to maintain its activity in-vivo. It was the aim of the present study to investigate the uptake, toxicity, transfection efficiency as well as phenotypic consequences of a nanoparticle (NP) in cell culture. NP consists of poly D, L-lactide-co-glycolide (PLGA) and polyethyleneimine (PEI) for delivery of in-vitro transcription-messenger RNA (IVT- mRNA) encoded green fluorescent protein (GFP) in human monocyte-derived dendritic cells (moDCs). Nanoparticles that were synthesized and encapsulated with synthetic GFP mRNA, exhibited size distribution in this formulation, with mean particle sizes ranging between 415 and 615 nm. Zeta potential was positive (above 12-13 mV) and the encapsulation efficiency exceeded 73.5%. Our results demonstrated that PLGA/PEI NPs encapsulation of GFP mRNA had no toxic effect on immature monocyte-derived dendritic cells and was capable of delivering of IVT-mRNA into moDCs and was highly effective. The expression of GFP protein 48 h after transfection was confirmed by flow cytometry, microscopic examination and western blotting assay. This NP can make a way to target moDCs to express a variety of antigens by IVT- mRNA. The present study introduced the PLGA/PEI NP, which provided effective delivery of IVT-mRNA that encodes the GFP protein.
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Affiliation(s)
- Zarin Sharifnia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mojgan Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Nariman Mosaffa
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Bahram Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Nosratollah Zarghami
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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Sharifnia Z, Bandehpour M, Kazemi B, Zarghami N. Design and Development of Modified mRNA Encoding Core Antigen of Hepatitis C Virus: a Possible Application in Vaccine Production. Iran Biomed J 2018. [PMID: 30056690 PMCID: PMC6305823 DOI: 10.29252/.23.1.57] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Hepatitis C virus (HCV) is a blood-borne pathogen, resulting in liver cirrhosis and liver cancer. Despite of many efforts in development of treatments for HCV, no vaccine has been licensed yet. The purpose of this study was to design and prepare a specific mRNA, without 5’ cap and poly (A) tail transcribed in vitro capable of coding core protein and also to determine its functionality. Methods: Candidate mRNA was prepared by in vitro transcription of the designed construct consisting of 5’ and 3’ untranslated regions of heat shock proteins 70 (hsp70) mRNA, T7 promoter, internal ribosome entry site (IRES) sequences of eIF4G related to human dendritic cells (DCs), and the Core gene of HCV. To design the modified mRNA, the 5’ cap and poly (A) tail structures were not considered. DCs were transfected by in vitro-transcribed messenger RNA (IVT-mRNA) and the expressions of green fluorescent protein (GFP), and Core genes were determined by microscopic examination and Western blotting assay. Results: Cell transfection results showed that despite the absence of 5’ cap and poly (A) tail, the structure of the mRNA was stable. Moreover, the successful expressions of GFP and Core genes were achieved. Conclusion: Our findings indicated the effectiveness of a designed IVT-mRNA harboring the Core gene of HCV in transfecting and expressing the antigens in DCs. Considering the simple and efficient protocol for the preparation of this IVT-mRNA and its effectiveness in expressing the gene that it carries, this IVT-mRNA could be suitable for development of an RNA vaccine against HCV.
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Affiliation(s)
- Zarin Sharifnia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Kazemi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nosratollah Zarghami
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Clinical Biochemistry and Laboratories Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Javaherian M, Sharifnia Z, Taheripanah R, Bandepour M, Soleimani M, Kazemi B. Using recombinant Chlamydia trachomatis OMP2 as antigen in diagnostic ELISA test. Iran J Microbiol 2014; 6:8-13. [PMID: 25954485 PMCID: PMC4419049] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND AND OBJECTIVES The obligate intracellular bacterium Chlamydia trachomatis causes sexually transmissible diseases in human. Timely and sensitive detection of this pathogen is very important. There are many cross-reactions in bacteriological and serological methods in detection of this type of pathogens. The aim of this study was to achieve a more specific antigen for serological tests. MATERIALS AND METHODS Blood samples were taken from 192 women with suspected chlamydial infection and sera were isolated. ELISA plate wells were coated with recombinant C. trachomatis OMP2 as antigen. Cut-off system was determined with 40 negative sera. The final results of this research were compared with Euroimmun commercial kit. RESULTS The ELISA system cut-off was calculated at 0.27 using negative sera samples. ODs of positive samples were higher than 0.27 and negative samples were lower than it. We obtained 30 samples (15.62%) as positive and 162 cases (84.37%) as negative. Sensitivity and specificity of the recombinant antigen were 90% and 86%, respectively. This antigen showed no cross-reactivity with sera of patients infected with Hydatid cyst, HCV, Epstein barr virus, HBV, Helicobacter pylori, Toxoplasma gondii, Cytomegalovirus, Mycoplasma, Measles and Varicella zoster virus. CONCLUSION The sensitivity and specificity of rOMP2 in ELISA for detection of C. trachomatis were 90% and 86%, respectively. Though the sensitivity was higher than results of Euroimmun commercial kit, its specificity was calculated lower than reference kit.
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Affiliation(s)
| | - Zarin Sharifnia
- Cellular and Molecular Biology Research center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Robabeh Taheripanah
- Fertility and Infertility Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mojgan Bandepour
- Cellular and Molecular Biology Research center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Biotechnology Department, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Bahram Kazemi
- Cellular and Molecular Biology Research center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Biotechnology Department, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Corresponding author:Bahram Kazemi, Address: Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences. Tel/Fax: +98-21-22439956,
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Yarmohammadi ME, Hassan ZM, Mostafaie A, Ebtekar M, Yaraee R, Pourfarzam S, Jalali-Nadoushan M, Faghihzadeh S, Vaez-Mahdavi MR, Soroush MR, Khamesipour A, Faghihzadeh E, Sharifnia Z, Naghizadeh MM, Ghazanfari T. Salivary levels of secretary IgA, C5a and alpha 1-antitrypsin in sulfur mustard exposed patients 20 years after the exposure, Sardasht-Iran Cohort Study (SICS). Int Immunopharmacol 2013; 17:952-7. [PMID: 23375936 DOI: 10.1016/j.intimp.2012.12.021] [Citation(s) in RCA: 3] [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] [Received: 12/22/2011] [Revised: 11/17/2012] [Accepted: 12/27/2012] [Indexed: 12/24/2022]
Abstract
Sulfur mustard (SM) is a strong toxic agent that causes acute and chronic health effects on a myriad of organs following exposure. Although the primary targets of inhaled mustard gas are the epithelia of the upper respiratory tract, the lower respiratory tract is the focus of the current study, and upper tract complications remain obscure. To our knowledge there is no study addressing the secretory IgA (S-IgA), C5a, alpha 1 antitrypsin (A1AT) in the saliva of SM-exposed victims. In this study, as many as 500 volunteers, including 372 SM-exposed cases and 128 control volunteers were recruited. A 3 ml sample of saliva was collected from each volunteer, and the level of secretory IgA, C5a, and alpha 1 antitrypsin in the samples were compared between the two groups. The SM-exposed group showed a significantly higher amount of salivary alpha 1 antitrypsin and secretary IgA compared to the control group (p<.006 and p<.018 respectively). The two groups showed no significant difference (p=0.192) in the level of C5a. The results also showed that the level of salivary A1AT is more than that of IgA in severely injured cases. The findings presented here provide valuable insight for both researchers and practitioners dealing with victims of the chemical warfare agent, sulfur mustard. This research indicates that certain branches of the inflammatory processes mandate serious attention in therapeutic interventions.
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Affiliation(s)
- Mohammad Ebrahim Yarmohammadi
- Immunoregulation Research Center, Shahed University, Tehran, Islamic Republic of Iran; Department of Otolaryngology, Shahed University, Tehran, Islamic Republic of Iran
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Khanaliha K, Motazedian MH, Sarkari B, Bandehpour M, Sharifnia Z, Kazemi B. Expression and Purification of P43 Toxoplasma gondii Surface Antigen. Iran J Parasitol 2012; 7:48-53. [PMID: 23109962 PMCID: PMC3469172] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Accepted: 07/11/2012] [Indexed: 10/31/2022]
Abstract
BACKGROUND Toxoplasma gondii is an obligate intracellular protozoan parasite, capable of infecting all species of mammals including man. Congenital toxoplasmosis is more important during pregnancy for the first time. In this study we expressed and purified P43 Toxoplasma gondii tachyzoite and bradyzoite specific surface antigen. METHODS The recombinant pGEMEX-1 contained Toxoplasma P43 coding sequence was transformed into E. coli and mass cultured in LB medium contained 100 μg/ml ampicillin at 37°C over night. The T7 promoter was induced by 1mM isopropyl-1-thio-ß-D-galactopyranoside (IPTG. Recombinant protein was purified by affinity chromatography and confirmed by gel diffusion dot blot and western blot,-using specific anti Toxoplasma antibodies. RESULTS Recombinant plasmid was induced by IPTG and analyzed by SDS-PAGE. Recombinant protein was confirmed by Western-blot and dot blot using anti human Toxoplasma antibody. CONCLUSION Recombinant Toxoplasma P43 was produced successfully.
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Affiliation(s)
- K Khanaliha
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - MH Motazedian
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - B Sarkari
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M Bandehpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Biotechnology Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Z Sharifnia
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Biotechnology Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - B Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Biotechnology Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran,Corresponding author:Tel/fax: +9821 2243 9956, E-mail:
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Bandehpour M, Khodabandeh M, Mosaffa N, Sharifnia Z, Ghazanfari T, Kazemi B. An efficient procedure for purification of recombinant human β heat shock protein 90. Daru 2010; 18:64-8. [PMID: 22615596 PMCID: PMC3232084] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 11/22/2009] [Accepted: 11/30/2009] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND THE PURPOSE OF THE STUDY Heat Shock Protein 90 (Hsp90) is typically the most abundant chaperone in the eukaryotic cell cytoplasm, and its expression is essential for loading immunogenic peptides onto major histocompatibility complex molecules for presentation to T-cells. Therefore, it may act as a good candidate as an adjuvant molecule in vaccine technology. METHODS Initially the human Hsp90β gene was cloned into the heat inducible expression vector pGP1-2 and then the recombinant protein was isolated by ion exchange chromatography. After intradermal injection of confirmed purified band of protein to rabbits and isolation of the serum IgG antibody, for its affinity purification, the rabbit's purified Hsp90 specific IgG was coupled to the cyanogen bromide-activated Sepharose 4B. RESULTS The recovery of the purified protein of interest by affinity chromatography was 50%. CONCLUSION This research enabled purification of human heat shock protein by a laboratory prepared column chromatography.
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Affiliation(s)
- M. Bandehpour
- National Institute of Genetic Engineering and Biotechnology (NIGEB),Cellular and Molecular Biology Research Center
| | - M. Khodabandeh
- National Institute of Genetic Engineering and Biotechnology (NIGEB),Correspondence:
| | | | - Z. Sharifnia
- Cellular and Molecular Biology Research Center,Department of Immunology, Faculty of Medicine, Shahed University, Tehran, Iran
| | - T. Ghazanfari
- Department of Immunology, Faculty of Medicine, Shahed University, Tehran, Iran
| | - B. Kazemi
- Cellular and Molecular Biology Research Center,Department of Parasitology, Shahid Beheshti University, M.C
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Ghazanfari T, Sharifnia Z, Yaraee R, Pourfarzam S, Kariminia A, Mahlojirad M, Faghihzadeh S, Jalali-Nodoushan MR, Ardestani SK, Soroush MR, Amiri S, Hassan ZM, Ghavami S, Ghanei M. Serum soluble Fas ligand and nitric oxide in long-term pulmonary complications induced by sulfur mustard: Sardasht-Iran Cohort Study. Int Immunopharmacol 2009; 9:1489-93. [DOI: 10.1016/j.intimp.2009.08.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2009] [Revised: 08/27/2009] [Accepted: 08/27/2009] [Indexed: 12/31/2022]
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12
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Amiri S, Ghazanfari T, Yaraee R, Salimi H, Ebtekar M, Shams J, Ghasemi H, Pourfarzam S, Moin A, Sharifnia Z, Soroush MR, Faghihzadeh S, Hassan ZM. Serum levels of GM-CSF 20years after sulfur mustard exposure: Sardasht-Iran Cohort Study. Int Immunopharmacol 2009; 9:1499-503. [DOI: 10.1016/j.intimp.2009.08.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 08/28/2009] [Accepted: 08/28/2009] [Indexed: 10/20/2022]
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Kariminia A, Sharifnia Z, Aghakhani A, Banifazl M, Eslamifar A, Hazrati M, Ramezani A. Comparison of QuantiFERON TB-G-test to TST for detecting latent tuberculosis infection in a high-incidence area containing BCG-vaccinated population. J Eval Clin Pract 2009; 15:148-51. [PMID: 19239595 DOI: 10.1111/j.1365-2753.2008.00970.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Until recently, the only tool for detection of latent tuberculosis infection (LTBI) was the tuberculin skin test (TST). QuantiFERON-TB Gold In-Tube test (QFT) is a promising in vitro diagnostic test for LTBI that has potential advantages over the TST. In this study we aimed to compare QFT with TST for diagnosis of LTBI. PATIENTS AND METHODS A total of 186 BCG-vaccinated subjects enrolled in study. They underwent TST and QFT assay. They divided in two groups. Group 1 includes individuals who were at low risk for exposure to M. tuberculosis (LRG) and Group 2 includes individuals who were likely to have been exposed to M. tuberculosis infections (HRG). RESULTS Overall agreement between QFT and TST was 89.3% (kappa = 0.052). In LRG, agreement between the two tests was 52.6% (95% confidence interval, 44-60%) with kappa-values of 0.019. In HRG agreement between the two tests was 63.2% (95% confidence interval, 42-84%) with kappa-values of 0.28. CONCLUSION In conclusion, the QFT assay showed acceptable results for determining latent M. tuberculosis infection in vaccinated population. The decision to select QFT over TST will depend on the population, purpose of testing and resource availability.
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Affiliation(s)
- Amina Kariminia
- Immunology Department Pasteur Institute of Iran, Tehran, Iran
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Ramezani A, Kariminia A, Mohraz M, Banifaz M, Sharifnia Z, Eslamifar A, Hazrati M, Aghakhani A. Comparison of IFN-Gamma Assay and Tuberculin Skin Test for Detecting Latent Tuberculosis Infection in BCG-Vaccinated Population. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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