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Su XY, Gao F, Wang SY, Li J, Wang ZQ, Zhang X. Annexin gene family in Spirometra mansoni (Cestoda: Diphyllobothriidae) and its phylogenetic pattern among Platyhelminthes of medical interest. Parasite 2024; 31:32. [PMID: 38912916 PMCID: PMC11195529 DOI: 10.1051/parasite/2024034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 06/07/2024] [Indexed: 06/25/2024] Open
Abstract
The plerocercoid larvae of Spirometra mansoni are etiological agents of human and animal sparganosis. Annexins are proteins with important roles in parasites. However, our knowledge of annexins in S. mansoni is still inadequate. In this study, 18 new members of the Annexin (ANX) family were characterized in S. mansoni. The clustering analysis demonstrated that all the SmANXs were divided into two main classes, consistent with the patterns of conserved motif organization. The 18 SmANXs were detected at all developmental stages (plerocercoid, adult, and egg) and displayed ubiquitous but highly variable expression patterns in all tissues/organs studied. The representative member rSmANX18 was successfully cloned and expressed. The protein was immunolocalized in the tegument and parenchyma of the plerocercoid and in the tegument, parenchyma, uterus and egg shell of adult worms. The recombinant protein can bind phospholipids with high affinity in a Ca2+-dependent manner, shows high anticoagulant activity and combines with FITC to recognize apoptotic cells. Annexin gene polymorphism and conservative core motif permutation were found in both cestodes and trematodes. SmANXs also revealed high genetic diversity among Platyhelminthes of medical interest. Our findings lay a foundation for further studies on the biological functions of ANXs in S. mansoni as well as other taxa in which ANXs occur.
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Affiliation(s)
| | | | | | | | | | - Xi Zhang
- Department of Parasitology, School of Basic Medical Sciences, Zhengzhou University Zhengzhou 450051 PR China
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Hataminejad M, Anvari D, Khaleghi N, Nayeri T, Shirazinia R, Shariatzadeh SA, Hosseini SA, Siyadatpanah A, Gholami S. Current status and future prospects of Echinococcus multilocularis vaccine candidates: A systematic review. Vet Anim Sci 2024; 24:100345. [PMID: 38516388 PMCID: PMC10950815 DOI: 10.1016/j.vas.2024.100345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024] Open
Abstract
The larval stages of Echinococcus multilocularis (E. multilocularis) are what cause the zoonotic disease known as alveolar echinococcosis (AE). Identifying the antigens that trigger immune responses during infection is extremely important for the development of vaccines against Echinococcus infections. Several studies conducted in recent decades have described the specific traits of the protective antigens found in E. multilocularis and their role in immunizing different animal hosts. The objective of the current systematic review was to summarize the findings of relevant literature on this topic and unravel the most effective vaccine candidate antigens for future research. A comprehensive search was conducted across five databases, including ProQuest, PubMed, Scopus, ScienceDirect, and Web of Science, until March 1, 2023. Two reviewers autonomously conducted the screening and evaluation of data extraction and quality assessment. In the present study, a total of 41 papers matched the criteria for inclusion. The study findings indicate that the combination of Em14-3-3 and BCG is widely considered the most often employed antigens for E. multilocularis immunization. In addition, the study describes antigen delivery, measurement of immune responses, adjuvants, animal models, as well as routes and doses of vaccination. The research indicated that recombinant vaccines containing EMY162, EM95, and EmII/3-Em14-3-3 antigens and crude or purified antigens containing ribotan-formulated excretory/secretory antigens exhibited the most favorable outcomes and elicited protective immune responses.
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Affiliation(s)
- Maryam Hataminejad
- Student Research Committee, Mazandaran University of Medical Science, Sari, Iran
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Davood Anvari
- Department of Parasitology and Mycology, Faculty of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Nahid Khaleghi
- Faculty of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Tooran Nayeri
- Infectious and Tropical Diseases Research Center, Dezful University of Medical Sciences, Dezful, Iran
| | - Reza Shirazinia
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Seyyed Ali Shariatzadeh
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Abdollah Hosseini
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - Shirzad Gholami
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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3
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Arbildi P, Muniz-Lagos AC, Fernández E, Giorgi R, Wiater K, Mourglia-Ettlin G, Fernández V. Immunization with a Mu-class glutathione transferase from Echinococcus granulosus induces efficient antibody responses and confers long-term protection against secondary cystic echinococcosis. Microbes Infect 2024:105364. [PMID: 38777107 DOI: 10.1016/j.micinf.2024.105364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
Cystic echinococcosis, a zoonosis caused by cestodes belonging to the Echinococcus granulosus sensu lato (s.l.) genetic complex, affects humans and diverse livestock species. Although a veterinary vaccine exhibiting high levels of antibody-mediated protection has successfully reached the market, the large genetic diversity among parasite isolates and their particular host preferences, makes still necessary the search for novel vaccine candidates. Glutathione transferases (GSTs) constitute attractive targets for immunoprophylaxis due to their outstanding relevance in helminth detoxification processes, against both exogenous and endogenous stressors. Among the six GSTs known to be expressed in E. granulosus s.l., EgGST1 (Mu-class), EgGST2 (Sigma-class), and EgGST3 (a still non-classifiable isoenzyme), show the highest proteomic expression. Therefore, their recombinant forms -rEgGST1, rEgGST2 and rEgGST3- were herein analyzed regarding their potential to induce long-term antiparasite protection in mice. Only immunization with rEgGST1 induced long-lasting protection; and accordingly, rEgGST1-specific antibodies enhanced the parasite killing through both the classical activation of the host complement system and the antibody-dependent cellular cytotoxicity by macrophages. These results support further testing of rEgGST1 as a vaccine candidate in diverse hosts due to the broad expression of EgGST1 in different parasite stages and tissues.
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Affiliation(s)
- Paula Arbildi
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay; Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Departamento de Inmunología, Instituto de Higiene "Prof. Arnoldo Berta", Universidad de la República, Montevideo, Uruguay
| | - Ana Clara Muniz-Lagos
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Eugenia Fernández
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Rosina Giorgi
- Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Kai Wiater
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Gustavo Mourglia-Ettlin
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay; Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Departamento de Inmunología, Instituto de Higiene "Prof. Arnoldo Berta", Universidad de la República, Montevideo, Uruguay.
| | - Verónica Fernández
- Área Inmunología, Departamento de Biociencias (DEPBIO), Facultad de Química, Universidad de la República, Montevideo, Uruguay; Unidad Asociada de Inmunología, Instituto de Química Biológica (IQB), Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Departamento de Inmunología, Instituto de Higiene "Prof. Arnoldo Berta", Universidad de la República, Montevideo, Uruguay.
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4
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Su Z, Wang D, Sizhu S, Luo R, Wang Q, Shi B, Tang W. Study on the genotypes of Echinococcus granulosus in yaks and sheep from Langkazi County in Tibet Autonomous Region of China based on mitochondrial cox1 and nad1. Parasitol Res 2024; 123:132. [PMID: 38353756 DOI: 10.1007/s00436-024-08158-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 02/07/2024] [Indexed: 02/16/2024]
Abstract
To determine the genotypes of the epidemic strains of Echinococcus granulosus in livestock in Tibet, samples of E. granulosus cysts were collected from 11 yaks and 62 sheep. Genomic DNA was extracted from these samples, and gene fragments of mitochondrial cytochrome c oxidase subunit I (cox1) and NADH dehydrogenase subunit I (nad1) were amplified by PCR and sequenced. DNASTAR and MAGA7.0 were employed for homology analysis and phylogenetic tree construction. Echinococcus granulosus cysts were detected in 56.2% (41/73) of the samples screened. Of these, 63.4% (26/41) were identified as E. granulosus G1 genotype (common sheep strain), 24.4% (10 /41) as G3 genotype (buffalo strain), and 12.2% (5/41) were G6 genotype (camel strain). The study concludes that yaks and sheep in Langkazi county, Tibet, carry three E. granulosus genotypes (G1, G3, and G6), with the G1 genotype the predominant genotype in the region. This study clarifies the distribution of E. granulosus genotypes, providing genetic data and insight for the surveillance and prevention of echinococcosis.
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Affiliation(s)
- Zhonghua Su
- Tibet Autonomous Animal Disease Prevention and Control Center, Lhasa, 850000, Tibet, China
| | - Dongjing Wang
- Institute of Animal Husbandry and Veterinary, Tibet Autonomous Regional Academy of Agricultural Sciences, Lhasa, 850009, Tibet, China
| | - Suolang Sizhu
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Nyingchi, 860000, Tibet, China
| | - Runbo Luo
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Nyingchi, 860000, Tibet, China
| | - Qiming Wang
- Department of Agriculture and rural Tibet, Lhasa, 850000, Tibet, China
| | - Bin Shi
- Institute of Animal Husbandry and Veterinary, Tibet Autonomous Regional Academy of Agricultural Sciences, Lhasa, 850009, Tibet, China
| | - Wenqiang Tang
- Institute of Animal Husbandry and Veterinary, Tibet Autonomous Regional Academy of Agricultural Sciences, Lhasa, 850009, Tibet, China.
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Leroux M, Benavides U, Hellel-Bourtal I, Silvarrey C, Milhau N, Marchal T, Bourgeois S, Lawton P, Briançon S, Petavy AF, Lahmar S, Esteves A, Almouazen E, Azzouz-Maache S. Development of an oral nanovaccine for dogs against Echinococcus granulosus. Eur J Pharm Biopharm 2023; 192:185-195. [PMID: 37769880 DOI: 10.1016/j.ejpb.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Dogs are the main source of animal and human cystic echinococcosis caused by the Cestode parasite Echinococcus granulosus. Dog vaccination seems to be a good strategy to control this parasitic disease. Here we present the development of a polymeric nanoparticle-based oral vaccine for dogs against Echinococcus granulosus delivered in enteric-coated capsules. To achieve our target, we encapsulated two recombinant antigens into biodegradable polymeric nanoparticles in the presence of Monophosphoryl lipid A as an adjuvant to ensure efficient delivery and activation of a protective mucosal immune response. The formulated delivery system showed a nanoparticle size less than 200 nm with more than 80 % antigen encapsulation efficiency and conserved integrity and immunogenicity. The nanoparticle surface was coated with chitosan to enhance adhesion to the gut mucosa and a subsequent antigen delivery. Chitosan-coated nanoparticles showed a higher cell internalization in murine macrophages and dendritic cells as well as a higher penetration into Caco-2 cells in vitro. Antigen-loaded nanoparticles were freeze-dried and enteric-coated capsules were filled with the obtained powder. The obtained results show a promising nanoparticles delivery system for oral vaccination.
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Affiliation(s)
- Marine Leroux
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, F-69100 Villeurbanne, France
| | - Uruguaysito Benavides
- Academic Unit of Immunology and Immunotherapy, Faculty of Veterinary Medicine, Universidad de la República, Montevideo, Uruguay
| | - Imène Hellel-Bourtal
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, F-69100 Villeurbanne, France
| | - Cecilia Silvarrey
- Biochemistry Section, Faculty of Sciences, Universidad de la República, Montevideo, Uruguay
| | - Nadège Milhau
- UPSP ICE, VetAgro Sup, Campus vétérinaire de Lyon, 1 avenue Bourgelat, F-69280 Marcy L'Etoile, France
| | - Thierry Marchal
- UPSP ICE, VetAgro Sup, Campus vétérinaire de Lyon, 1 avenue Bourgelat, F-69280 Marcy L'Etoile, France
| | - Sandrine Bourgeois
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, F-69100 Villeurbanne, France; Univ Lyon, Université Claude-Bernard Lyon I, ISPB-Faculté de Pharmacie, F-69008 Lyon, France
| | - Philippe Lawton
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, F-69100 Villeurbanne, France; Univ Lyon, Université Claude-Bernard Lyon I, ISPB-Faculté de Pharmacie, F-69008 Lyon, France
| | - Stephanie Briançon
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, F-69100 Villeurbanne, France; Univ Lyon, Université Claude-Bernard Lyon I, ISPB-Faculté de Pharmacie, F-69008 Lyon, France
| | - Anne-Françoise Petavy
- Univ Lyon, Université Claude-Bernard Lyon I, ISPB-Faculté de Pharmacie, F-69008 Lyon, France
| | - Samia Lahmar
- National School of Veterinary Medicine, Sidi Thabet, Tunisia
| | - Adriana Esteves
- Biochemistry Section, Faculty of Sciences, Universidad de la República, Montevideo, Uruguay
| | - Eyad Almouazen
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, F-69100 Villeurbanne, France; Univ Lyon, Université Claude-Bernard Lyon I, ISPB-Faculté de Pharmacie, F-69008 Lyon, France
| | - Samira Azzouz-Maache
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, F-69100 Villeurbanne, France; Univ Lyon, Université Claude-Bernard Lyon I, ISPB-Faculté de Pharmacie, F-69008 Lyon, France.
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6
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Zhao Y, Bi Q, Wei Y, Wang R, Wang G, Fu G, Ran Z, Lu J, Zhang H, Zhang L, Jin R, Nie Y. A DNA vaccine (EG95-PT1/2/3-IL2) encoding multi-epitope antigen and IL-2 provokes efficient and long-term immunity to echinococcosis. J Control Release 2023; 361:402-416. [PMID: 37527761 DOI: 10.1016/j.jconrel.2023.07.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 07/20/2023] [Accepted: 07/29/2023] [Indexed: 08/03/2023]
Abstract
Echinococcosis is a highly prevalent global zoonosis, and vaccines are required. The commercial vaccine based on a protein-based subunit (EG95), however, is limited by its insufficient cellular immunity, a short protection period, and limited prevention against novel mutant strains. Herein, we applied bioinformatics to develop a DNA vaccine (pEG95-IL2) expressing both multi-epitope-based antigens (EG95-PT1/2/3) and an IL-2 adjuvant to regulate T cell differentiation and memory cell response. EG95-PT1/2/3 was screened with hierarchical structure prediction from the epitope conformation of B cells with high confidence across various species to guarantee immunogenicity. Importantly, cationic arginine-rich lipid nanoparticles (RNP) were utilized as a delivery vehicle to form lipoplexes that had a transfection efficiency of nearly two orders of magnitude greater than that of commercial reagents (Lipofectamine 2000 and polyethyleneimine) with both immune and nonimmune cells (DC2.4 and L929 cells, respectively). RNP/pEG95-IL2 lipoplexes displayed a robust and long-term antigen expression, as well as adjuvant effects during the immunization. Consequently, intramuscular injection of RNP/pEG95-IL2 elicited similar humoral immune responses and significantly greater cellular responses in mice when compared with those of the commercial vaccine. In addition, the inoculation protocol of RNP/pEG95-IL2 with sequential booster further strengthens cellular immunity in comparison with the homologous booster. Those findings provide a promising strategy for improving plasmid vaccine efficacy.
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Affiliation(s)
- Yangyang Zhao
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Qunjie Bi
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Yu Wei
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Ruohan Wang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Gang Wang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Gang Fu
- Chongqing Auleon Biological Co., Ltd., Chongqing 402460, China
| | - Zhiguang Ran
- Chongqing Auleon Biological Co., Ltd., Chongqing 402460, China
| | - Jiao Lu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China
| | - Heyang Zhang
- Leiden Academic Center for Drug Research (LACDR), Leiden University, Leiden 2333 CC, the Netherlands
| | - Ling Zhang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610041, China
| | - Rongrong Jin
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China.
| | - Yu Nie
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610041, China.
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Ríos-Valencia DG, Ambrosio J, Tirado-Mendoza R, Carrero JC, Laclette JP. What about the Cytoskeletal and Related Proteins of Tapeworms in the Host's Immune Response? An Integrative Overview. Pathogens 2023; 12:840. [PMID: 37375530 DOI: 10.3390/pathogens12060840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/09/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
Recent advances have increased our understanding of the molecular machinery in the cytoskeleton of mammalian cells, in contrast to the case of tapeworm parasites, where cytoskeleton remains poorly characterized. The pertinence of a better knowledge of the tapeworm cytoskeleton is linked to the medical importance of these parasitic diseases in humans and animal stock. Moreover, its study could offer new possibilities for the development of more effective anti-parasitic drugs, as well as better strategies for their surveillance, prevention, and control. In the present review, we compile the results of recent experiments on the cytoskeleton of these parasites and analyze how these novel findings might trigger the development of new drugs or the redesign of those currently used in addition to supporting their use as biomarkers in cutting-edge diagnostic tests.
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Affiliation(s)
- Diana G Ríos-Valencia
- Department of Microbiology and Parasitology, School of Medicine, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
| | - Javier Ambrosio
- Department of Microbiology and Parasitology, School of Medicine, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
| | - Rocío Tirado-Mendoza
- Department of Microbiology and Parasitology, School of Medicine, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
| | - Julio César Carrero
- Department of Immunology, Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
| | - Juan Pedro Laclette
- Department of Immunology, Biomedical Research Institute, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México 04510, Mexico
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8
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Mariki A, Barzin Z, Fasihi Harandi M, Karbasi Ravari K, Davoodi M, Mousavi SM, Rezakhani S, Nazeri M, Shabani M. Antigen B modulates anti-inflammatory cytokines in the EAE model of multiple sclerosis. Brain Behav 2023; 13:e2874. [PMID: 36582052 PMCID: PMC9927863 DOI: 10.1002/brb3.2874] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/13/2021] [Accepted: 01/22/2022] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Multiple sclerosis (MS) is characterized by the destruction of the blood-brain barrier, loss of myelin sheath, and contribution of inflammatory interleukins such as TNF-alpha, interleukin-17, and interleukin-6. METHODS The current study investigated the effect of antigen B of hydatid cyst fluid on the reduction of anti-inflammatory cytokines and nerve conduction velocity in rats with experimental autoimmune encephalomyelitis (EAE)-induced MS. After isolation of antigen B from sterile cyst fluid, the rats were randomly divided into four groups: saline, EAE, EAE + teriflunomide (EAE + TF), and EAE + antigen B (EAE + AngB). The EAE model was induced using cow spinal cord homogenization, in combination with Freund's complete adjuvant. The serum concentration of cytokines including IL-1B and IL-17, IL-10, IL-6, and TNF-X was measured by the ELISA method, and real-time PCR was performed to study gene expression. Electrophysiological, behavioral, and neuropathological tests were also conducted. RESULTS Nerve conduction velocity and IL-10 concentration were increased in the antigen B group. The results of this study showed that antigen B reduced the inflammatory component of the EAE MS animal model by modulating the immune system compared to teriflunomide, which eventually led to a reduction in symptoms at the behavioral and electrophysiological level. CONCLUSIONS It seems that antigen B plays a critical role in regulating immunity and it can be used as a possible therapeutic agent to modulate the immune system in MS patients. It might be rational to consider hydatid cyst fluid antigen as a modifier in MS.
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Affiliation(s)
- Aliakbar Mariki
- Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Zahra Barzin
- Department of Parasitology and Mycology, School of Medicine, Jiroft University of Medical Science, Jiroft, Kerman, Iran
| | - Majid Fasihi Harandi
- Research Center for Hydatid Disease in Iran, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Mahboubeh Davoodi
- Student Research Committee, Yasuj University of Medical sciences, Yasuj, Iran
| | - Seyed Mohammad Mousavi
- Research Center for Hydatid Disease in Iran, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Soheila Rezakhani
- Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran
| | - Masoud Nazeri
- Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran.,Department of Anesthesiology, Friedrich-Alexander-University Erlangen-Nuremberg, University Hospital Erlangen, Krankenhausstraße, Germany
| | - Mohammad Shabani
- Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran
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9
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Alvi MA, Alsayeqh AF. Food-borne zoonotic echinococcosis: A review with special focus on epidemiology. Front Vet Sci 2022; 9:1072730. [PMID: 36605765 PMCID: PMC9807814 DOI: 10.3389/fvets.2022.1072730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/16/2022] [Indexed: 12/24/2022] Open
Abstract
Echinococcosis is a neglected, WHO-listed cyclozoonotic parasitic disease that is caused by a number of species belonging to the genus Echinococcus. This disease is widespread across the globe, resulting in heavy economic losses for farmers and cystic disease in aberrant human hosts. This review paper briefly discussed taxonomy, a brief history, the magnitude of economic losses, host spectrum and life cycle, risk factors, and clinical manifestations. Furthermore, the copro- and sero-ELISA-based prevalence of echinococcosis on different continents was summarized. Finally, the authors analyzed the frequency and use of molecular epidemiology in the taxonomy of Echinococcus species based on molecular markers. This review will serve as a quick reference to Echinococcus.
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Affiliation(s)
- Mughees Aizaz Alvi
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad, Pakistan
| | - Abdullah F. Alsayeqh
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraidah, Saudi Arabia,*Correspondence: Abdullah F. Alsayeqh
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10
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Brandell EE, Jackson MK, Cross PC, Piaggio AJ, Taylor DR, Smith DW, Boufana B, Stahler DR, Hudson PJ. Evaluating noninvasive methods for estimating cestode prevalence in a wild carnivore population. PLoS One 2022; 17:e0277420. [PMID: 36378663 PMCID: PMC9665365 DOI: 10.1371/journal.pone.0277420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 10/26/2022] [Indexed: 11/16/2022] Open
Abstract
Helminth infections are cryptic and can be difficult to study in wildlife species. Helminth research in wildlife hosts has historically required invasive animal handling and necropsy, while results from noninvasive parasite research, like scat analysis, may not be possible at the helminth species or individual host levels. To increase the utility of noninvasive sampling, individual hosts can be identified by applying molecular methods. This allows for longitudinal sampling of known hosts and can be paired with individual-level covariates. Here we evaluate a combination of methods and existing long-term monitoring data to identify patterns of cestode infections in gray wolves in Yellowstone National Park. Our goals were: (1) Identify the species and apparent prevalence of cestodes infecting Yellowstone wolves; (2) Assess the relationships between wolf biological and social characteristics and cestode infections; (3) Examine how wolf samples were affected by environmental conditions with respect to the success of individual genotyping. We collected over 200 wolf scats from 2018-2020 and conducted laboratory analyses including individual wolf genotyping, sex identification, cestode identification, and fecal glucocorticoid measurements. Wolf genotyping success rate was 45%, which was higher in the winter but decreased with higher precipitation and as more time elapsed between scat deposit and collection. One cestode species was detected in 28% of all fecal samples, and 38% of known individuals. The most common infection was Echinococcus granulosus sensu lato (primarily E. canadensis). Adult wolves had 4x greater odds of having a cestode infection than pups, as well as wolves sampled in the winter. Our methods provide an alternative approach to estimate cestode prevalence and to linking parasites to known individuals in a wild host system, but may be most useful when employed in existing study systems and when field collections are designed to minimize the time between fecal deposition and collection.
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Affiliation(s)
- Ellen E. Brandell
- Center for Infectious Disease Dynamics, Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, United States of America
- * E-mail:
| | - Madeline K. Jackson
- Yellowstone Center for Resources, Yellowstone National Park, WY, United States of America
| | - Paul C. Cross
- U.S. Geological Survey, Northern Rocky Mountain Science Center, Bozeman, MT, United States of America
| | - Antoinette J. Piaggio
- National Wildlife Research Center, U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, Fort Collins, CO, United States of America
| | - Daniel R. Taylor
- National Wildlife Research Center, U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services, Fort Collins, CO, United States of America
| | - Douglas W. Smith
- Yellowstone Center for Resources, Yellowstone National Park, WY, United States of America
| | - Belgees Boufana
- National Wildlife Management Centre, National Reference Laboratory for Parasites (Trichinella and Echinococcus), Animal and Plant Health Agency, York, United Kingdom
| | - Daniel R. Stahler
- Yellowstone Center for Resources, Yellowstone National Park, WY, United States of America
| | - Peter J. Hudson
- Center for Infectious Disease Dynamics, Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, United States of America
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Echinococcus granulosus cyclophilin: Immunoinformatics analysis to provide insights into the biochemical properties and immunogenic epitopes. INFORMATICS IN MEDICINE UNLOCKED 2022. [DOI: 10.1016/j.imu.2022.100925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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12
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Gharibi Z, Rahdar M, Pirestani M, Tavalla M, Tabandeh MR. The Immunization of Protoscolices P29 DNA Vaccine on Experimental Cystic Echinococosis in Balb/c Mice. Acta Parasitol 2021; 66:1114-1121. [PMID: 33813653 DOI: 10.1007/s11686-021-00367-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/01/2021] [Indexed: 12/27/2022]
Abstract
PURPOSE Cystic Echinococosis is one of the important parasitic diseases that is considered as a problem economics and health in many parts of the world. Many efforts have been performed for controlling the disease in the world. To reach a reliable vaccine against Cystic Echinococosis is one of the important duty of governments. Several antigen of hydatid cyst for vaccine candidate have been evaluated. In this study, P-29 antigen has been used for this purpose. METHODS E.g P29 antigen was cloned in Escherichia coli and transfected into the Chinese hamster ovary cell for antigen proliferation and used for vaccination in Balb/c mice. The recombinant antigen E.g-29 was shown using Western blot test. Two dilution of DNA vaccine (pCEgP-29) including 50 µg/100 µl and 100 µg/100 µl were prepared. Twenty four Balb/C male 6-8 week mouse were divided in 4 groups. The groups were included in 2 vaccination groups (pcEg.P29 50 µg/100 µl and 100 µg/100 µl dilution) as immunized groups and 2 groups of plasmid and PBS as control. The mice were injected intramuscularly 3 times with 2 weeks interval. After 3 weeks from last injection, all groups were challenged intraperitonealy with 2000 protoscolices. After 5 months, the mice were euthanized by ketamine/xylasine injection and number, size, and weight of cysts were recorded. RESULTS Immunization rate was up to 93% in vaccinated group when compared with the control group. CONCLUSION The results of this study showed that rEg.P29 could be considered as an effective vaccine for controlling of E. granulosus prevalence in intermediated host.
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Affiliation(s)
- Zahra Gharibi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Parasitology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mahmoud Rahdar
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
- Parasitology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Majid Pirestani
- Parasitology and Medical Entomology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehdi Tavalla
- Parasitology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad-Reza Tabandeh
- Basic Sciences Department, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Sultana S, Sultana N, Islam M, Pervin M, Khan MAI, Noor Ali Khan MAH. Zoonotic diseases appeared to be a major hurdle to successful deer farming in Bangladesh. Vet World 2021; 14:2462-2472. [PMID: 34840467 PMCID: PMC8613778 DOI: 10.14202/vetworld.2021.2462-2472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/03/2021] [Indexed: 11/16/2022] Open
Abstract
Background and Aim Due to the diversified lifestyle and fancy ecology associated with Chitra deer (Axis axis), deer farming has become popular in Bangladesh. Diseases may be the common constrain of successful deer farming. This study aims to investigate the pathological, bacteriological, and nucleic acid based technologies to identify specific causes of morbidity and mortality of captive deer. Materials and Methods Two deer farms and a park deer (designated as farm A, B, and C) entailing 87, 54, and 20 deer, respectively, showed illness and death constitute the study materials. A total of 42 deer died during this investigation. Following death, routine post-mortem examination, histopathology, impression smear staining, isolation, and identification of bacteria were carried out. Polymerase chain reaction (PCR) and reverse transcription PCR were carried out to safeguard the etiology. Results Clinically, farm A and B showed the acute phase of illness and park deer showed chronic illness. Case fatality rates were 90%, 92%, and 100% in farms A, B, and C deer, respectively. Pasteurella multocida and Streptococcus pneumoniae were identified from the visceral organs of farm A deer. Farm B deer was infected with Clostridium perfringens type A. Park deer was infected with Mycobacterium tuberculosis and hydatid cyst. Conclusion The infectivity in farm A deer was due to stress as induced by punishing weather. The infectivity in farm B deer was due to feeding a higher volume of protein in the diet. The park C deer may optate infection from companion man and animals living around. The diseases of captive deer identified mainly were zoonotic. It needs extensive veterinary services and specialized technologies to identify these diseases, monitor the infectivity and eliminate the public health important diseases at early onset.
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Affiliation(s)
- Sajeda Sultana
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh.,Department of Pathology, Faculty of Animal Science and Veterinary Medicine, Sher-E-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka 1207, Bangladesh
| | - Nazneen Sultana
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
| | - Mahmuda Islam
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
| | - Munmun Pervin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
| | - Md Ariful Islam Khan
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
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Bioinformatic prediction and identification of immunogenic epitopes of the antigenic 14-3-3 protein of Echinococcus multilocularis. Acta Trop 2021; 220:105955. [PMID: 33979643 DOI: 10.1016/j.actatropica.2021.105955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Alveolar echinococcosis is a high-risk parasitic disease caused by the larval stage of Echinococcus multilocularis. The study aimed to predict and identify the dominant Th1/Th2 and B cell epitopes of the antigen protein 14-3-3 beta:alpha from Echinococcus multilocularis. METHODS A comparison of the four amino acid sequences of 14-3-3 beta:alpha was respectively derived from Echinococcus multilocularis, Rattus norvegicus, Canis lupus familiaris, and Homo sapiens was carried out by CLUSTALW to provide a basis for excluding similar epitopes. The amino acid sequence information was analyzed by SOPMA and the homology model was established by Swiss-Model. IEDB and SYFPEITHI were used to predict T cell epitopes. According to the Bcepred and ABCpred, the B cell epitopes were comprehensively predicted and analyzed. The dominant epitopes were validated by Lymphocyte Proliferation, ELISA, ELISpot, and Flow cytometry. RESULTS Eight potential epitopes of 14-3-3 from Echinococcus multilocularis were screened according to the results of prediction and analysis: 14-3-31-15, 14-3-36-21, 14-3-371-86, 14-3-3144-157, 14-3-3145-166, 14-3-3146-160, 14-3-3153-161, and 14-3-3164-177. The 3D structure model of the protein was constructed and the location distribution of potential epitope was ascertained. Respectively, the epitopes of the dominant antigen of B cells were validated as 14-3-3145-166 and 14-3-3164-177; the Th1 dominant antigen epitopes were 14-3-36-21, 14-3-3145-166; and the Th2 dominant epitopes was 14-3-3145-166. CONCLUSION In this study, two dominant antigen epitopes of B cells, two Th1 dominant antigen epitopes, and one Th2 dominant antigen epitope were validated. Our work provides a basis for the subsequent development of efficient and safe vaccines targeting epitopes of Echinococcus multilocularis.
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Vaccination with rEGVac elicits immunoprotection against different stages of Echinococcus granulosus life cycle: A pilot study. Acta Trop 2021; 218:105883. [PMID: 33676937 DOI: 10.1016/j.actatropica.2021.105883] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/16/2022]
Abstract
Vaccination against dog-sheep transmission cycle is necessary to control cystic echinococcosis (CE) infection. A multi-epitope multi-antigenic recombinant vaccine was developed-comprising the three putative vaccine antigens EG95, Eg14-3-3 and EgEnolase-was cloned and expressed. In a pilot experiment, the multi-antigen vaccine was assessed in 15 dogs and 15 sheep (five experimental groups and three animals in each group) by two subcutaneous doses 28 days apart. To evaluate the efficacy of the vaccine candidate first immunological analysis were done comprising IgG and IgE antibodies and the cytokine IL-4 in sera of the immunized dogs and sheep. Serum IgG, IgE, and IL-4, in particular in the dogs, were increased after the two rounds of vaccine candidate injection, while the total number of hydatid cysts was reduced (~85.43%). This pilot trial indicated significant immune protection efficacy against E. granulosus especially in dogs, while its efficacy in sheep was not as high as dogs. The multi-antigenic candidate vaccine is proposed as a protective vaccine modality in both dogs and sheep.
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Anvari D, Pourmalek N, Rezaei S, Fotovati A, Hosseini SA, Daryani A, Spotin A, Sarvi S, Hosseini M, Narouei MR, Kalkali M, Pendar F, Gholami S. The global status and genetic characterization of hydatidosis in camels ( Camelus dromedarius): a systematic literature review with meta-analysis based on published papers. Parasitology 2021; 148:259-273. [PMID: 32940199 PMCID: PMC11010127 DOI: 10.1017/s0031182020001705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 08/24/2020] [Accepted: 09/10/2020] [Indexed: 02/07/2023]
Abstract
Hydatidosis is a potential zoonotic helminthic disease affecting a broad spectrum of mammals, including humans, worldwide. The current review was conducted to investigate the genotypic status and prevalence of hydatid disease in camels across the world. For the purpose of the study, the articles addressing the worldwide prevalence of hydatidosis in camels were searched in several English language databases. The search process resulted in the inclusion of 122 papers. Based on the data presented in the reviewed articles, the pooled prevalence of hydatid disease in camels across the world was measured at 23.75% (95% CI 20.15-27.55). Moreover, the subgroup analysis demonstrated significant differences in the overall prevalence of hydatidosis among camels based on year, geographic area, climate parameters, camel population, gender, infected organ, fertility rate of the cyst and laboratory diagnostic technique. Furthermore, the Echinococcus granulosus genotypes identified in camels with hydatidosis included G1, G2, G3, G1-G3, G5, G6, G7, G6-G7 and G6-G10, with G6 being the most common genotype throughout the world. The data obtained from the current study are central to the better conceptualization of the biological and epidemiological characteristics of E. granulosus s.l. genotypes around the world, which can be helpful in the planning and adoption of more comprehensive control strategies.
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Affiliation(s)
- Davood Anvari
- Student Research Committee, Mazandaran University of Medical Science, Sari, Iran
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- School of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Nima Pourmalek
- Faculty of Veterinary Medicine, Islamic Azad University, Karaj Branch, Karaj, Iran
| | - Saeed Rezaei
- Faculty of Veterinary Medicine, Islamic Azad University, Karaj Branch, Karaj, Iran
| | - Amir Fotovati
- Faculty of Veterinary Medicine, University of Zabol, Zabol, Iran
| | - Seyed Abdollah Hosseini
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ahmad Daryani
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Adel Spotin
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahabeddin Sarvi
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mona Hosseini
- Faculty of Veterinary Medicine, University of Zabol, Zabol, Iran
| | | | - Mohammad Kalkali
- Student Research Committee, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Faezeh Pendar
- Student Research Committee, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Shirzad Gholami
- Toxoplasmosis Research Center, Department of Parasitology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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Song H, He X, Du X, Hua R, Xu J, He R, Xie Y, Gu X, Peng X, Yang G. Molecular characterization and expression analysis of annexin B3 and B38 as secretory proteins in Echinococcus granulosus. Parasit Vectors 2021; 14:103. [PMID: 33557917 PMCID: PMC7869467 DOI: 10.1186/s13071-021-04596-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/13/2021] [Indexed: 11/18/2022] Open
Abstract
Background Cystic echinococcosis is a parasitic zoonotic disease, which poses a threat to public health and animal husbandry, and causes significant economic losses. Annexins are a family of phospholipid-binding proteins with calcium ion-binding activity, which have many functions. Methods Two annexin protein family genes [Echinococcus granulosus annexin B3 (EgAnxB3) and EgAnxB38] were cloned and molecularly characterized using bioinformatic analysis. The immunoreactivity of recombinant EgAnxB3 (rEgAnxB3) and rEgAnxB38 was investigated using western blotting. The distribution of EgAnxB3 and EgAnxB38 in protoscoleces (PSCs), the germinal layer, 18-day strobilated worms and 45-day adult worms was analyzed by immunofluorescence localization, and their secretory characteristics were analyzed preliminarily; in addition, quantitative real-time reverse transcription polymerase chain reaction was used to analyze their transcript levels in PSCs and 28-day strobilated worms stages. The phospholipid-binding activities of rEgAnxB3 and rEgAnxB38 were also analyzed. Results EgAnxB3 and EgAnxB38 are conserved and contain calcium-binding sites. Both rEgAnxB3 and rEgAnxB38 could be specifically recognized by the serum samples from E. granulosus-infected sheep, indicating that they had strong immunoreactivity. EgAnxB3 and EgAnxB38 were distributed in all stages of E. granulosus, and their transcript levels were high in the 28-day strobilated worms. They were found in liver tissues near the cysts. In addition, rEgAnxB3 has Ca2+-dependent phospholipid-binding properties. Conclusions EgAnxB3 and EgAnxB38 contain calcium-binding sites, and rEgAnxB3 has Ca2+-dependent phospholipid-binding properties. EgAnxB3 and EgAnxB38 were transcribed in PSCs and 28-day strobilated worms. They were expressed in all stages of E. granulosus, and distributed in the liver tissues near the hydatid cyst, indicating that they are secreted proteins that play a crucial role in the development of E. granulosus. ![]()
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Affiliation(s)
- Hongyu Song
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Xue He
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Xiaodi Du
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Ruiqi Hua
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Jing Xu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Ran He
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Yue Xie
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Xiaobin Gu
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Xuerong Peng
- Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Guangyou Yang
- Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang, 611130, China.
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Shams M, Javanmardi E, Nosrati MC, Ghasemi E, Shamsinia S, Yousefi A, Kordi B, Majidiani H, Nourmohammadi H. Bioinformatics features and immunogenic epitopes of Echinococcus granulosus Myophilin as a promising target for vaccination against cystic echinococcosis. INFECTION GENETICS AND EVOLUTION 2021; 89:104714. [PMID: 33434702 DOI: 10.1016/j.meegid.2021.104714] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/27/2020] [Accepted: 01/06/2021] [Indexed: 10/22/2022]
Abstract
Cystic echinococcosis (CE) is a neglected zoonosis especially in underdeveloped countries around the world. Hence, immunization strategies are beneficial to avert the infection. The present investigation was aimed to predict the primary biochemical characteristics of the EgMyophilin and its potential B-cell and human leukocyte antigen (HLA)-binding epitopes as a promising vaccine candidate. Different web servers were used to predict physico-chemical, antigenic and allergenic profiles, transmembrane domain, subcellular localization, post-translational modification (PTM) sites, secondary and 3D structure, tertiary model refinement and validations. B-cell and HLA-binding epitopes were predicted and screened in terms antigenicity, allergenicity, solubility (B-cell) or hydrophobicity (T-cell). The 89.82 KDa protein was non-allergenic, hydrophilic, stable, with improved thermotolerance and 94 post-translational modification sites. The secondary structure included 42.94% alpha helix, 42.82% random coil and 41.23% extended strand. Based on Ramachandran plot output for refined model, 96.2%, 99.5%, and 0.45% of amino acid residues were incorporated in the favored, allowed, and outlier regions of the refined model, respectively. After epitope screening, four B-cell and five HLA-binding epitopes possessed the highest antigenic index in the protein sequence. This paper is a premise for further researches, and provides insights for the development of a suitable vaccine against CE. More empirical studies are required using the EgMyophilin alone or in combination with other antigens/epitopes in the future.
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Affiliation(s)
- Morteza Shams
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Erfan Javanmardi
- Clinical Research Development Center, "The Persian Gulf Martyrs" Hospital, Bushehr, University of Medical Sciences, Bushehr, Iran
| | | | - Ezatollah Ghasemi
- Department of Medical Parasitology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Sadegh Shamsinia
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ali Yousefi
- Students Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Bahareh Kordi
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran; Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hamidreza Majidiani
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran.
| | - Hassan Nourmohammadi
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran; Department of Internal Medicine, Shahid Mostafa Khomeini Hospital, Ilam University of Medical Sciences, Ilam, Iran.
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Pourseif MM, Parvizpour S, Jafari B, Dehghani J, Naghili B, Omidi Y. A domain-based vaccine construct against SARS-CoV-2, the causative agent of COVID-19 pandemic: development of self-amplifying mRNA and peptide vaccines. BIOIMPACTS : BI 2020; 11:65-84. [PMID: 33469510 PMCID: PMC7803919 DOI: 10.34172/bi.2021.11] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/18/2020] [Accepted: 11/25/2020] [Indexed: 12/15/2022]
Abstract
Introduction: Coronavirus disease 2019 (COVID-19) is undoubtedly the most challenging pandemic in the current century with more than 293,241 deaths worldwide since its emergence in late 2019 (updated May 13, 2020). COVID-19 is caused by a novel emerged coronavirus named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Today, the world needs crucially to develop a prophylactic vaccine scheme for such emerged and emerging infectious pathogens. Methods: In this study, we have targeted spike (S) glycoprotein, as an important surface antigen to identify its B- and T-cell immunodominant regions. We have conducted a multi-method B-cell epitope (BCE) prediction approach using different predictor algorithms to discover the most potential BCEs. Besides, we sought among a pool of MHC class I and II-associated peptide binders provided by the IEDB server through the strict cut-off values. To design a broad-coverage vaccine, we carried out a population coverage analysis for a set of candidate T-cell epitopes and based on the HLA allele frequency in the top most-affected countries by COVID-19 (update 02 April 2020). Results: The final determined B- and T-cell epitopes were mapped on the S glycoprotein sequence, and three potential hub regions covering the largest number of overlapping epitopes were identified for the vaccine designing (I531-N711; T717-C877; and V883-E973). Here, we have designed two domain-based constructs to be produced and delivered through the recombinant protein- and gene-based approaches, including (i) an adjuvanted domain-based protein vaccine construct (DPVC), and (ii) a self-amplifying mRNA vaccine (SAMV) construct. The safety, stability, and immunogenicity of the DPVC were validated using the integrated sequential (i.e. allergenicity, autoimmunity, and physicochemical features) and structural (i.e. molecular docking between the vaccine and human Toll-like receptors (TLRs) 4 and 5) analysis. The stability of the docked complexes was evaluated using the molecular dynamics (MD) simulations. Conclusion: These rigorous in silico validations supported the potential of the DPVC and SAMV to promote both innate and specific immune responses in preclinical studies.
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Affiliation(s)
- Mohammad Mostafa Pourseif
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Parvizpour
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Jafari
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medicinal Chemistry, Faculty of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Jaber Dehghani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behrouz Naghili
- Research Center for Infectious and Tropical Diseases, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Nova Southeastern University, College of Pharmacy, Florida, USA
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Alvi MA, Ohiolei JA, Li L, Saqib M, Hussain MH, Tayyab MH, Ghafoor M, Qamar W, Faridi NY, Alvi AA, Fu BQ, Yan HB, Jia WZ. In-House Developed ELISA Indicates High Prevalence of Anti- Echinococcus granulosus IgG in Sheep Population-An Update from Pakistan. Pathogens 2020; 9:pathogens9110905. [PMID: 33137933 PMCID: PMC7693474 DOI: 10.3390/pathogens9110905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 01/25/2023] Open
Abstract
Cystic echinococcosis (CE) is a World Health Organization (WHO)-listed neglected tropical farm economy jeopardizing and public health concern disease. This study was aimed at furnishing sero-epidemiological baseline data of CE in sheep in Pakistan, where data are non-existent. For this purpose, two sheep-rich provinces of Pakistan were selected, and 728 sheep sera were collected using probability proportional to size (PPS) statistical technique. Epidemiological information was recorded on a questionnaire for the estimation of potential risk factors. The serum samples were analyzed for IgG antibodies against Echinococcus granulosus using an in-house-developed EgAgB-based ELISA kit. The overall seroprevalence recorded was 21.98% (160/728) in the tested sheep, suggesting higher seropositivity in sheep from Punjab (23.73%) as compared to Khyber Pakhtunkhwa (KPK) (19.04%). The overall apparent prevalence observed by this ELISA method was almost similar to the calculated true prevalence (21.77%). Prevalence was significantly different (p < 0.05) among sheep from different districts. Higher prevalence was found in females (22.54%, OR 1.41), age group > 5 years (29.66%, OR 1.64), crossbreeds (42.85%, OR 2.70), and sheep with pasture access (25.96%, OR 3.06). Being in age group > 5 years and having pasture access were the factors significantly associated with seropositivity (p < 0.05). This study provides serological evidence of E. granulosus infection in sheep and can be used as a model for ante-mortem screening of the sheep globally.
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Affiliation(s)
- Mughees Aizaz Alvi
- State Key Laboratory of Veterinary Etiological Biology, National Professional Laboratory of Animal Hydatidosis, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - John Asekhaen Ohiolei
- State Key Laboratory of Veterinary Etiological Biology, National Professional Laboratory of Animal Hydatidosis, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Li Li
- State Key Laboratory of Veterinary Etiological Biology, National Professional Laboratory of Animal Hydatidosis, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Muhammad Saqib
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad 38400, Pakistan
| | | | - Muhammad Haleem Tayyab
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad 38400, Pakistan
| | - Muzafar Ghafoor
- Department of Clinical Medicine and Surgery, University of Agriculture, Faisalabad 38400, Pakistan
| | - Warda Qamar
- Department of Pathobiology, University of Veterinary and Animal Sciences, Lahore Sub-Campus Jhang 12-Km Chiniot Road, Jhang 35200, Pakistan
| | - Noman Yousaf Faridi
- Punjab Livestock and Dairy Development, Government of Punjab, Chiniot 35400, Pakistan
| | | | - Bao-Quan Fu
- State Key Laboratory of Veterinary Etiological Biology, National Professional Laboratory of Animal Hydatidosis, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Hong-Bin Yan
- State Key Laboratory of Veterinary Etiological Biology, National Professional Laboratory of Animal Hydatidosis, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
| | - Wan-Zhong Jia
- State Key Laboratory of Veterinary Etiological Biology, National Professional Laboratory of Animal Hydatidosis, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
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21
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Anvari D, Rezaei F, Ashouri A, Rezaei S, Majidiani H, Pagheh AS, Rezaei F, Shariatzadeh SA, Fotovati A, Siyadatpanah A, Gholami S, Ahmadpour E. Current situation and future prospects of Echinococcus granulosus vaccine candidates: A systematic review. Transbound Emerg Dis 2020; 68:1080-1096. [PMID: 32762075 DOI: 10.1111/tbed.13772] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/20/2020] [Accepted: 08/01/2020] [Indexed: 12/14/2022]
Abstract
Cystic echinococcosis is a worldwide zoonotic disease, represents a threat for livestock and humans, manifests as a quiescent, subclinical and chronic hydatid cyst infection. The disease imposes high expenditures and economic losses in medical and veterinary. Prophylactic vaccination would be one of the effective preventive health care against echinococcosis. During the last decades, many studies have characterized the protective antigens of Echinococcus granulosus and their role in immunization of various animal host species. Herein, we aimed to systematically evaluate and represent the best antigens as possible vaccine candidates for cystic echinococcosis. Data were systematically searched from five databases including ProQuest, PubMed, Scopus, ScienceDirect and Web of Science, up to 1 February 2020. Two reviewers independently screened and assessed data extraction and quality assessment. A total of 47 articles were eligible for inclusion criteria in the current study. The most common antigens used for vaccination against E. granulosus were EG95 and antigen B. Freund's adjuvant and Quil A have been predominantly utilized. In addition, regarding the antigen delivery, animal models, measurement of immune responses and reduction in hydatid cyst have been discussed in the text. The data demonstrated that DNA vaccines with antigen B and recombinant protein vaccines based on EG95 antigen have the best results and elicited protective immune responses.
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Affiliation(s)
- Davood Anvari
- Student Research Committee, Mazandaran University of Medical Science, Sari, Iran.,Department of Parasitology, School of Medicine, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran.,School of Medicine, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Fatemeh Rezaei
- Faculty of Modern Sciences and Technologies, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Alireza Ashouri
- Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Saeed Rezaei
- Faculty of Veterinary Medicine, Islamic Azad University, Karaj, Iran
| | - Hamidreza Majidiani
- Zonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Abdol Sattar Pagheh
- Infectious Disease Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Fatemeh Rezaei
- Department of Parasitology, School of Medicine, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyyed Ali Shariatzadeh
- Student Research Committee, Mazandaran University of Medical Science, Sari, Iran.,Department of Parasitology, School of Medicine, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Amir Fotovati
- Faculty of Veterinary Medicine, University of Zabol, Zabol, Iran
| | | | - Shirzad Gholami
- Department of Parasitology, School of Medicine, Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ehsan Ahmadpour
- Infectious and Tropical Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Parasitology and Mycology, Tabriz University of Medical Sciences, Tabriz, Iran
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22
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Sander VA, Sánchez López EF, Mendoza Morales L, Ramos Duarte VA, Corigliano MG, Clemente M. Use of Veterinary Vaccines for Livestock as a Strategy to Control Foodborne Parasitic Diseases. Front Cell Infect Microbiol 2020; 10:288. [PMID: 32670892 PMCID: PMC7332557 DOI: 10.3389/fcimb.2020.00288] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/14/2020] [Indexed: 12/19/2022] Open
Abstract
Foodborne diseases (FBDs) are a major concern worldwide since they are associated with high mortality and morbidity in the human population. Among the causative agents of FBDs, Taenia solium, Echinococcus granulosus, Toxoplasma gondii, Cryptosporidium spp., and Trichinella spiralis are listed in the top global risk ranking of foodborne parasites. One common feature between them is that they affect domestic livestock, encompassing an enormous risk to global food production and human health from farm to fork, infecting animals, and people either directly or indirectly. Several approaches have been employed to control FBDs caused by parasites, including veterinary vaccines for livestock. Veterinary vaccines against foodborne parasites not only improve the animal health by controlling animal infections but also contribute to increase public health by controlling an important source of FBDs. In the present review, we discuss the advances in the development of veterinary vaccines for domestic livestock as a strategy to control foodborne parasitic diseases.
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Affiliation(s)
| | | | | | | | | | - Marina Clemente
- Laboratorio de Molecular Farming y Vacunas, Unidad Biotecnológica 6-UB6, INTECH, UNSAM-CONICET, Chascomús, Argentina
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23
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Sunita, Sajid A, Singh Y, Shukla P. Computational tools for modern vaccine development. Hum Vaccin Immunother 2020; 16:723-735. [PMID: 31545127 PMCID: PMC7227725 DOI: 10.1080/21645515.2019.1670035] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/28/2019] [Accepted: 09/13/2019] [Indexed: 12/12/2022] Open
Abstract
Vaccines play an essential role in controlling the rates of fatality and morbidity. Vaccines not only arrest the beginning of different diseases but also assign a gateway for its elimination and reduce toxicity. This review gives an overview of the possible uses of computational tools for vaccine design. Moreover, we have described the initiatives of utilizing the diverse computational resources by exploring the immunological databases for developing epitope-based vaccines, peptide-based drugs, and other resources of immunotherapeutics. Finally, the applications of multi-graft and multivalent scaffolding, codon optimization and antibodyomics tools in identifying and designing in silico vaccine candidates are described.
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Affiliation(s)
- Sunita
- Enzyme Technology and Protein Bioinformatics Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, India
- Bacterial Pathogenesis Laboratory, Department of Zoology, University of Delhi, Delhi
| | - Andaleeb Sajid
- National Institutes of Health, National Cancer Institute, Bethesda, MD, USA
| | - Yogendra Singh
- Bacterial Pathogenesis Laboratory, Department of Zoology, University of Delhi, Delhi
| | - Pratyoosh Shukla
- Enzyme Technology and Protein Bioinformatics Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, India
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24
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Milhau N, Almouazen E, Bouteille S, Hellel-Bourtal I, Azzouz-Maache S, Benavides U, Petavy AF, Marchal T. In vitro evaluations on canine monocyte-derived dendritic cells of a nanoparticles delivery system for vaccine antigen against Echinococcus granulosus. PLoS One 2020; 15:e0229121. [PMID: 32101539 PMCID: PMC7043750 DOI: 10.1371/journal.pone.0229121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 01/30/2020] [Indexed: 02/06/2023] Open
Abstract
Since dogs play a central role in the contamination of humans and livestock with Echinococcus granulosus, the development of an effective vaccine for dogs is essential to control the disease caused by this parasite. For this purpose, a formulation based on biodegradable polymeric nanoparticles (NPs) as delivery system of recombinant Echinococcus granulosus antigen (tropomyosin EgTrp) adjuved with monophosphoryl lipid A (MPLA) has been developed. The obtained nanoparticles had a size of approximately 200 nm in diameter into which the antigen was correctly preserved and encapsulated. The efficiency of this system to deliver the antigen was evaluated in vitro on canine monocyte-derived dendritic cells (cMoDCs) generated from peripheral blood monocytes. After 48 h of contact between the formulations and cMoDCs, we observed no toxic effect on the cells but a strong internalization of the NPs, probably through different pathways depending on the presence or not of MPLA. An evaluation of cMoDCs activation by flow cytometry showed a stronger expression of CD80, CD86, CD40 and MHCII by cells treated with any of the tested formulations or with LPS (positive control) in comparison to cells treated with PBS (negative control). A higher activation was observed for cells challenged with EgTrp-NPs-MPLA compared to EgTrp alone. Formulations with MPLA, even at low ratio of MPLA, give better results than formulations without MPLA, proving the importance of the adjuvant in the nanoparticles structure. Moreover, autologous T CD4+ cell proliferation observed in presence of cMoDCs challenged with EgTrp-NPs-MPLA was higher than those observed after challenged with EgTrp alone (p<0.05). These first results suggest that our formulation could be used as an antigen delivery system to targeting canine dendritic cells in the course of Echinococcus granulosus vaccine development.
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MESH Headings
- Adjuvants, Immunologic/administration & dosage
- Animals
- Antigens, Protozoan/administration & dosage
- Antigens, Protozoan/genetics
- Antigens, Protozoan/immunology
- CD4-Positive T-Lymphocytes/immunology
- Cell Differentiation
- Cell Proliferation/drug effects
- Cells, Cultured
- Dendritic Cells/drug effects
- Dendritic Cells/immunology
- Dogs/blood
- Dogs/immunology
- Dogs/parasitology
- Drug Carriers/chemistry
- Drug Carriers/toxicity
- Echinococcosis/immunology
- Echinococcosis/parasitology
- Echinococcosis/prevention & control
- Echinococcosis/veterinary
- Echinococcus granulosus/genetics
- Echinococcus granulosus/immunology
- Immunogenicity, Vaccine
- Lipid A/analogs & derivatives
- Lipid A/chemistry
- Lipid A/toxicity
- Lymphocyte Activation/immunology
- Monocytes/physiology
- Nanoparticles/chemistry
- Nanoparticles/toxicity
- Polyesters/chemistry
- Polyesters/toxicity
- Primary Cell Culture
- Protozoan Vaccines/administration & dosage
- Protozoan Vaccines/genetics
- Protozoan Vaccines/immunology
- Toxicity Tests, Acute
- Tropomyosin/administration & dosage
- Tropomyosin/genetics
- Tropomyosin/immunology
- Vaccines, Synthetic/administration & dosage
- Vaccines, Synthetic/genetics
- Vaccines, Synthetic/immunology
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Affiliation(s)
- Nadège Milhau
- Université de Lyon, VetAgro Sup, UPSP ICE 2011.03.101, Marcy L’Etoile, France
| | - Eyad Almouazen
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Villeurbanne, France
- ISPB-Faculté de Pharmacie, Université Claude-Bernard Lyon 1, Lyon, France
| | - Sylvie Bouteille
- Université de Lyon, VetAgro Sup, Laboratoire d’Histopathologie, Marcy L’Etoile, France
| | - Imène Hellel-Bourtal
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Villeurbanne, France
| | - Samira Azzouz-Maache
- ISPB-Faculté de Pharmacie, Université Claude-Bernard Lyon 1, Lyon, France
- Institut de recherche pour le développement (IRD), UMR InterTryp IRD/CIRAD, campus international de Baillarguet, Montpellier, France
| | - Uruguaysito Benavides
- Immunology Department, Faculty of Veterinary, Universidad de la República, Montevideo, Uruguay
| | - Anne-Françoise Petavy
- ISPB-Faculté de Pharmacie, Université Claude-Bernard Lyon 1, Lyon, France
- Institut de recherche pour le développement (IRD), UMR InterTryp IRD/CIRAD, campus international de Baillarguet, Montpellier, France
| | - Thierry Marchal
- Université de Lyon, VetAgro Sup, UPSP ICE 2011.03.101, Marcy L’Etoile, France
- Université de Lyon, VetAgro Sup, Laboratoire d’Histopathologie, Marcy L’Etoile, France
- * E-mail:
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25
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Nourmohammadi H, Javanmardi E, Shams M, Shamsinia S, Nosrati MC, Yousefi A, Nemati T, Fatollahzadeh M, Ghasemi E, Kordi B, Majidiani H, Irannejad H. Multi-epitope vaccine against cystic echinococcosis using immunodominant epitopes from EgA31 and EgG1Y162 antigens. INFORMATICS IN MEDICINE UNLOCKED 2020. [DOI: 10.1016/j.imu.2020.100464] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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26
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Kandil OM, El-Hakim AE, Gad AAM, Abu El-Ezz NMT, Mahmoud MS, Hendawy SHM, Salama DB. Camel hydatidosis diagnostic kit: optimization of turnip and horseradish peroxidase conjugates using glutaraldehyde method. J Parasit Dis 2019; 44:230-238. [PMID: 32174729 DOI: 10.1007/s12639-019-01186-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 12/05/2019] [Indexed: 12/11/2022] Open
Abstract
Echinococcosis/hydatidosis is one of the most important parasitic zoonotic diseases in the world. Cystic echinococcosis increases public health and socio-economic concern due to considerable morbidity rates that give rise to elevated economic losses both in the public health part and in the farm animal field. The enzyme linked immunosorbent assay (ELISA) is consider the more accurate tool for diagnosis of hydatidosis in camels. In the present study, affinity purified Echinococcus granulosus (E. granulosus) antigens (APA) were purified from crude hydatide E. granulosus germinal layer proteins for detection of E. granulosus antibodies in infected camels, using affinity matrix (camel IgGs coupled to CNBr-activated Sepharose). The electrophoretic profile of the APA showed that it was separated into two bands; one major band of 130 kDa and one minor band at 55 kDa. These antigens were used successfully as specific coating antigenic proteins in detection of echinococcosis in camel. In a trial to prepare an anti-camel IgGs peroxidase conjugate; peroxidase enzyme was purified from turnip roots (TPOD) using ammonium sulfate precipitation and affinity chromatography on phenyl Sepharose CL-4B. The purified TPOD showed a major band at 35 kDa. Rabbit anti-camel IgG antibodies (AC IgGs) were prepared then purified using affinity chromatography on Protein G-Sepharose. The TPOD, and commercial HRP for comparison, enzymes were conjugated to AC IgGs using 1%, 5% and 10% glutaraldehyde. The results revealed that the HRP was much better than TPOD in conjugation with AC-IgG antibodies and the 10% glutaraldehyde concentration was the most efficient concentration with ELISA titer 1:50.
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Affiliation(s)
- Omnia M Kandil
- 1Parasitology and Animal Diseases Department, Veterinary Research Division, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622 Egypt
| | - Amr E El-Hakim
- 2Molecular Biology Department, Genetic Engineering and Biotechnology Division, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622 Egypt
| | - Abdul Aziz M Gad
- 2Molecular Biology Department, Genetic Engineering and Biotechnology Division, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622 Egypt
| | - Nadia M T Abu El-Ezz
- 1Parasitology and Animal Diseases Department, Veterinary Research Division, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622 Egypt
| | - Mona S Mahmoud
- 1Parasitology and Animal Diseases Department, Veterinary Research Division, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622 Egypt
| | - Seham H M Hendawy
- 1Parasitology and Animal Diseases Department, Veterinary Research Division, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622 Egypt
| | - Dina B Salama
- 1Parasitology and Animal Diseases Department, Veterinary Research Division, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622 Egypt
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27
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Cystic echinococcosis: Development of an intermediate host rabbit model for using in vaccination studies. Exp Parasitol 2019; 208:107800. [PMID: 31726054 DOI: 10.1016/j.exppara.2019.107800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 11/10/2019] [Indexed: 01/07/2023]
Abstract
The aims of this study were an establishment of the domestic rabbit as an intermediate host for cystic echinococcosis (CE) and to evaluate the potency of the crude germinal layer and the protoscoleces antigens to protect against the CE. Firstly; Two groups of white Newzeland rabbits were infected orally either by 5000 active oncospheres or viable protoscoleces separately. After 20 weeks, the slaughtered rabbits showed the presence of hydatid cysts at different internal organs. Molecular detection of the resulted cysts was conducted. Secondly; 27 rabbits were divided into nine groups (n = 3). Groups 1 and 2 were immunized with the crude germinal layer antigen while the groups 3 and 4 were immunized with the crude protoscoleces antigen. Groups 5 and 6 received the adjuvant mineral oil. Groups 7 and 8 were used as positive control. The last 9 group was kept as a negative control. The obtained results showed a significant high protection percentage of 83.4% and high antibody titer was recorded in groups that received the crude germinal layer antigen comparing with the groups that immunized with the crude protoscoleces antigen as their protection percentage was 66.7% with lower IgG response. In conclusion, the domestic rabbits could be used as a laboratory model for CE. Developing of the germinal layer antigen is more immunogenic than the protoscoleces one and could be used as a promising vaccine. Attention should be directed towards the existing rabbit in the environment adjacent to infected dogs as it could be a part of Echinococcus life cycle.
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28
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Wang L, Gao J, Lan X, Zhao H, Shang X, Tian F, Wen H, Ding J, Luo L, Ma X. Identification of combined T-cell and B-cell reactive Echinococcus granulosus 95 antigens for the potential development of a multi-epitope vaccine. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:652. [PMID: 31930053 DOI: 10.21037/atm.2019.10.87] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Background Identification of combined T-cell and B-cell reactive Eg95 antigens for the potential development of a multi-epitope vaccine against Echinococcus granulosus (EG), the causative agent of cystic echinococcosis (CE). Methods This study involved the recombinant expression of Eg95 along with associated immune rabbit antiserum preparation. Bioinformatics technology was used to facilitate the analysis of Eg95 molecules. PCR was subsequently used to amplify genetic sequences of the epitopes encoding the T-cell and B-cell reactive peptide fragments. SDS-PAGE was used to assess the expression levels of three proteins. Eg95 serum and patient antiserum, which were assessed using Western blot in order to identify suitable antigenic epitope peptides. ELISA detection assay facilitated comparison of the immune reactivity of the short peptide epitopes. The assay results could be used to determine an EG epitope-based vaccine candidate list from suitably reactive Eg95 epitopes. Results Eg95 molecules have 3 T-B table. The phage display systems were successfully built using the M13KE carrier. Expression of the three fusion protein peptides were detected. Western blot showed Eg95 antiserum against EG facilitated identification of the three T-cell and B-cell reactive epitopes. After the reaction intensities analyzed by the ELISA, both of the short peptide epitopes Eg95-2 and Eg95-3 showed strong signal strength and associated antigenicity when combined with patient serum and rabbit anti-rEg95 serum. Conclusions This study used bioinformatics methods to construct successfully a T-cell and B-cell epitope phage display system for the Eg95 antigen from EG. The two epitopes of Eg95-2 and Eg95-3 demonstrated strong antigenicity with potential applications for peptide vaccine development.
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Affiliation(s)
- Liang Wang
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Jian Gao
- College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, China
| | - Xi Lan
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China.,Shenzhen Hospital, Southern Medical University, Shenzhen 518000, China
| | - Hui Zhao
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Xiaoqian Shang
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Fengming Tian
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Hao Wen
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Jianbing Ding
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China.,College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, China
| | - Li Luo
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Xiumin Ma
- Clinical Medical Research Institute, State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China.,College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, China
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29
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Zhao X, Zhang F, Li Z, Wang H, An M, Li Y, Pang N, Ding J. Bioinformatics analysis of EgA31 and EgG1Y162 proteins for designing a multi-epitope vaccine against Echinococcus granulosus. INFECTION GENETICS AND EVOLUTION 2019; 73:98-108. [PMID: 31022474 DOI: 10.1016/j.meegid.2019.04.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 04/17/2019] [Accepted: 04/19/2019] [Indexed: 11/15/2022]
Affiliation(s)
- Xiao Zhao
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China; College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China
| | - Fengbo Zhang
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China; Department of Clinical Laboratory, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China
| | - Zhiwei Li
- College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China
| | - Hongying Wang
- College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China
| | - Mengting An
- College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China
| | - Yujiao Li
- Department of Clinical Laboratory, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China
| | - Nannan Pang
- Department of Clinical Laboratory, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China
| | - Jianbing Ding
- State Key Laboratory of Pathogenesis, Prevention, Treatment of Central Asian High Incidence Diseases, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China; College of Basic Medicine of Xinjiang Medical University, Urumqi 830011, Xinjiang, PR China.
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30
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Miles S, Portela M, Cyrklaff M, Ancarola ME, Frischknecht F, Durán R, Dematteis S, Mourglia-Ettlin G. Combining proteomics and bioinformatics to explore novel tegumental antigens as vaccine candidates against Echinococcus granulosus infection. J Cell Biochem 2019; 120:15320-15336. [PMID: 31038784 DOI: 10.1002/jcb.28799] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/30/2019] [Accepted: 02/04/2019] [Indexed: 12/20/2022]
Abstract
Echinococcus granulosus is the parasite responsible for cystic echinococcosis (CE), an important worldwide-distributed zoonosis. New effective vaccines against CE could potentially have great economic and health benefits. Here, we describe an innovative vaccine design scheme starting from an antigenic fraction enriched in tegumental antigens from the protoscolex stage (termed PSEx) already known to induce protection against CE. We first used mass spectrometry to characterize the protein composition of PSEx followed by Gene Ontology analysis to study the potential Biological Processes, Molecular Functions, and Cellular Localizations of the identified proteins. Following, antigenicity predictions and determination of conservancy degree against other organisms were determined. Thus, nine novel proteins were identified as potential vaccine candidates. Furthermore, linear B cell epitopes free of posttranslational modifications were predicted in the whole PSEx proteome through colocalization of in silico predicted epitopes within peptide fragments identified by matrix-assisted laser desorption/ionization-TOF/TOF. Resulting peptides were termed "clean linear B cell epitopes," and through BLASTp scanning against all nonhelminth proteins, those with 100% identity against any other protein were discarded. Then, the secondary structure was predicted for peptides and their corresponding proteins. Peptides with highly similar secondary structure respect to their parental protein were selected, and those potentially toxic and/or allergenic were discarded. Finally, the selected clean linear B cell epitopes were mapped within their corresponding 3D-modeled protein to analyze their possible antibody accessibilities, resulting in 14 putative peptide vaccine candidates. We propose nine novel proteins and 14 peptides to be further tested as vaccine candidates against CE.
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Affiliation(s)
- Sebastián Miles
- Área Inmunología, DEPBIO/IQB, Facultad de Química/Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Madelón Portela
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo and IIBCE, Montevideo, Uruguay
| | - Marek Cyrklaff
- Integrative Parasitology, Center for Infectious Diseases, Heidelberg University, Heidelberg, Germany
| | - María Eugenia Ancarola
- Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPaM, UBA-CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Friedrich Frischknecht
- Integrative Parasitology, Center for Infectious Diseases, Heidelberg University, Heidelberg, Germany
| | - Rosario Durán
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo and IIBCE, Montevideo, Uruguay
| | - Sylvia Dematteis
- Área Inmunología, DEPBIO/IQB, Facultad de Química/Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Gustavo Mourglia-Ettlin
- Área Inmunología, DEPBIO/IQB, Facultad de Química/Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
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Asgharzadeh MR, Pourseif MM, Barar J, Eskandani M, Jafari Niya M, Mashayekhi MR, Omidi Y. Functional expression and impact of testis-specific gene antigen 10 in breast cancer: a combined in vitro and in silico analysis. ACTA ACUST UNITED AC 2019; 9:145-159. [PMID: 31508330 PMCID: PMC6726749 DOI: 10.15171/bi.2019.19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/20/2019] [Accepted: 03/02/2019] [Indexed: 12/15/2022]
Abstract
Introduction: Testis-specific gene antigen 10 (TSGA10) is a less-known gene, which is involved in the vague biological paths of different cancers. Here, we investigated the TSGA10 expression using different concentrations of glucose under hypoxia and also its interaction with the hypoxia-inducible factor 1 (HIF-1). Methods: The breast cancer MDA-MB-231 and MCF-7 cells were cultured with different concentrations of glucose (5.5, 11.0 and 25.0 mM) under normoxia/hypoxia for 24, 48, and 72 hours and examined for the HIF-1α expression and cell migration by Western blotting and scratch assays. The qPCR was employed to analyze the expression of TSGA10. Three-dimensional (3D) structure and the energy minimization of the interacting domain of TSGA10 were performed by MODELLER v9.17 and Swiss-PDB viewer v4.1.0/UCSF Chimera v1.11. The UCSF Chimera v1.13.1 and Hex 6.0 were used for the molecular docking simulation. The Cytoscape v3.7.1 and STRING v11.0 were used for protein-protein interaction (PPI) network analysis. The HIF-1a related hypoxia pathways were obtained from BioModels database and reconstructed in CellDesigner v4.4.2. Results: The increased expression of TSGA10 was found to be significantly associated with the reduced metastasis in the MDA-MB-231 cells, while an inverse relationship was seen between the TSGA10 mRNA level and cellular migration but not in the MCF-7 cells. The C-terminal domain of TSGA10 interacted with HIF-1α with high affinity, resulting in PPI network with 10 key nodes (HIF-1α, VEGFA, HSP90AA1, AKT1, ARNT, TP53, TSGA10, VHL, JUN, and EGFR). Conclusions: Collectively, TSGA10 functional expression alters under the hyper-/hypo-glycemia and hypoxia, which indicates its importance as a candidate bio-target for the cancer therapy.
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Affiliation(s)
- Mohammad Reza Asgharzadeh
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biology, Fars Science and Research Branch, Islamic Azad University, Marvdasht, Iran.,Department of Biology, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Mohammad M Pourseif
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Eskandani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mojtaba Jafari Niya
- Department of Biology, Fars Science and Research Branch, Islamic Azad University, Marvdasht, Iran.,Department of Biology, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | | | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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Pourseif MM, Yousefpour M, Aminianfar M, Moghaddam G, Nematollahi A. A multi-method and structure-based in silico vaccine designing against Echinococcus granulosus through investigating enolase protein. ACTA ACUST UNITED AC 2019; 9:131-144. [PMID: 31508329 PMCID: PMC6726745 DOI: 10.15171/bi.2019.18] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 11/27/2018] [Accepted: 12/04/2018] [Indexed: 12/24/2022]
Abstract
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Introduction: Hydatid disease is a ubiquitous parasitic zoonotic disease, which causes different medical, economic and serious public health problems in some parts of the world. The causal organism is a multi-stage parasite named Echinococcus granulosus whose life cycle is dependent on two types of mammalian hosts viz definitive and intermediate hosts.
Methods: In this study, enolase, as a key functional enzyme in the metabolism of E. granulosus (EgEnolase), was targeted through a comprehensive in silico modeling analysis and designing a host-specific multi-epitope vaccine. Three-dimensional (3D) structure of enolase was modeled using MODELLER v9.18 software. The B-cell epitopes (BEs) were predicted based on the multi-method approach and via some authentic online predictors. ClusPro v2.0 server was used for docking-based T-helper epitope prediction. The 3D structure of the vaccine was modeled using the RaptorX server. The designed vaccine was evaluated for its immunogenicity, physicochemical properties, and allergenicity. The codon optimization of the vaccine sequence was performed based on the codon usage table of E. coli K12. Finally, the energy minimization and molecular docking were implemented for simulating the vaccine binding affinity to the TLR-2 and TLR-4 and the complex stability.
Results: The designed multi-epitope vaccine was found to induce anti-EgEnolase immunity which may have the potential to prevent the survival and proliferation of E. granulosus into the definitive host.
Conclusion: Based on the results, this step-by-step immunoinformatics approach could be considered as a rational platform for designing vaccines against such multi-stage parasites. Furthermore, it is proposed that this multi-epitope vaccine is served as a promising preventive anti-echinococcosis agent.
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Affiliation(s)
- Mohammad Mostafa Pourseif
- Department of Physiology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran.,Infectious Diseases and Tropical Medicine Research Center (IDTMRC), Department of Aerospace and Subaquatic Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Mitra Yousefpour
- Department of Physiology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Mohammad Aminianfar
- Infectious Diseases and Tropical Medicine Research Center (IDTMRC), Department of Aerospace and Subaquatic Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Gholamali Moghaddam
- Department of Animal Sciences, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Ahmad Nematollahi
- Department of Pathobiology, Veterinary College, University of Tabriz, Tabriz, Iran
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Dehghani J, Adibkia K, Movafeghi A, Barzegari A, Pourseif MM, Maleki Kakelar H, Golchin A, Omidi Y. Stable transformation of Spirulina (Arthrospira) platensis: a promising microalga for production of edible vaccines. Appl Microbiol Biotechnol 2018; 102:9267-9278. [PMID: 30159589 DOI: 10.1007/s00253-018-9296-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 07/28/2018] [Accepted: 08/01/2018] [Indexed: 12/20/2022]
Abstract
The planktonic blue-green microalga Spirulina (Arthrospira) platensis possesses important features (e.g., high protein and vital lipids contents as well as essential vitamins) and can be consumed by humans and animals. Accordingly, this microalga gained growing attention as a new platform for producing edible-based pharmaceutical proteins. However, there are limited successful strategies for the transformation of S. platensis, in part because of an efficient expression of strong endonucleases in its cytoplasm. In the current work, as a pilot step for the expression of therapeutic proteins, an Agrobacterium-based system was established to transfer gfp:gus and hygromycin resistance (hygr) genes into the genome of S. platensis. The presence of acetosyringone in the transfection medium significantly reduced the transformation efficiency. The PCR and real-time RT-PCR data confirmed the successful integration and transcription of the genes. Flow cytometry and β-glucuronidase (GUS) activity experiments confirmed the successful production of GFP and the enzyme. Moreover, the western blot analysis showed a ~ 90 kDa band in the transformed cells, indicating the successful production of the GFP:GUS protein. Three months after the transformation, the gene expression stability was validated by histochemical, flow cytometry, and hygromycin B resistance analyses.
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Affiliation(s)
- Jaber Dehghani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khosro Adibkia
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Movafeghi
- Department of Plant Biology, Faculty of Natural Science, University of Tabriz, Tabriz, Iran
| | - Abolfazl Barzegari
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad M Pourseif
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Maleki Kakelar
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Asal Golchin
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran. .,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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Pourseif MM, Moghaddam G, Daghighkia H, Nematollahi A, Omidi Y. A novel B- and helper T-cell epitopes-based prophylactic vaccine against Echinococcus granulosus. ACTA ACUST UNITED AC 2017; 8:39-52. [PMID: 29713601 PMCID: PMC5915707 DOI: 10.15171/bi.2018.06] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/02/2017] [Accepted: 12/03/2017] [Indexed: 12/17/2022]
Abstract
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Introduction:
In this study, we targeted the worm stage of Echinococcus granulosus to design a novel multi-epitope B- and helper T-cell based vaccine construct for immunization of dogs against this multi-host parasite.
Methods:
The vaccine was designed based on the local Eg14-3-3 antigen (Ag). DNA samples were extracted from the protoscoleces of the infected sheep’s liver, and then subjected to the polymerase chain reaction (PCR) with 14-3-3 specific forward and reverse primers. For the vaccine designing, several in silico steps were undertaken. Three-dimensional (3D) structure of the local Eg14-3-3 Ag was modeled by EasyModeller software. The protein modeling accuracy was then analyzed via various validation assays. Potential transmembrane helix, signal peptide, post-translational modifications and allergenicity of Eg14-3-3 were evaluated as the preliminary measures of B-cell epitopes (BEs ) prediction. Having used many web-servers, a well-designed process was carried out for improved prediction of BEs. High ranked linear and conformational BEs were utilized for engineering the final vaccine construct. Possible T-helper epitopes (TEs) were identified by the molecular docking between 13-mer fragments of the Eg14-3-3 Ag and two high frequent dog class II MHC alleles (i.e., DLA-DRB1*01101 and DRB1*01501). The epitopes coverage was evaluated by Shannon’s variability plot.
Results:
The final designed construct was analyzed based on different physicochemical properties, which was then codon optimized for high-level expression in Escherichia coli k12. This minigene construct is the first dog-specific epitopic vaccine construct that is established based on TEs with high-binding affinity to canine MHC alleles.
Conclusion:
This in silico study is the first part of a multi-antigenic vaccine designing work that represents as a novel dog-specific vaccine against E. granulosus. Here, we present key data on the step-by-step methodologies used for designing this de novo vaccine, which is under comprehensive in vivo investigations.
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Affiliation(s)
- Mohammad M Pourseif
- Department of Animal Sciences, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.,Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Gholamali Moghaddam
- Department of Animal Sciences, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Hossein Daghighkia
- Department of Animal Sciences, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Ahmad Nematollahi
- Department of Pathobiology, Veterinary Collage, University of Tabriz, Tabriz, Iran
| | - Yadollah Omidi
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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