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López-López K, Apodaca-Medina AI, León-Sicairos CR, Murúa-López CC, Ortiz-Navarrete VF, Chávez-Ontiveros J, Beltrán-López E, López-Moreno HS. Cloning and Recombinant Expression of Elongation Factor-1α of Leishmania mexicana. Vector Borne Zoonotic Dis 2018; 18:709-712. [DOI: 10.1089/vbz.2018.2347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Kenia López-López
- Laboratorio de Biomedicina Molecular, Posgrado en Biotecnología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Annete I. Apodaca-Medina
- Laboratorio de Biomedicina Molecular, Posgrado en Biotecnología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Claudia R. León-Sicairos
- Laboratorio de Biomedicina Molecular, Posgrado en Biotecnología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Carolina C. Murúa-López
- Laboratorio de Biomedicina Molecular, Posgrado en Biotecnología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Vianney F. Ortiz-Navarrete
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Delegación Gustavo A. Madero, Ciudad de México, México
| | - Jeanett Chávez-Ontiveros
- Laboratorio de Biomedicina Molecular, Posgrado en Biotecnología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Evangelina Beltrán-López
- Laboratorio de Biomedicina Molecular, Posgrado en Biotecnología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Héctor S. López-Moreno
- Laboratorio de Biomedicina Molecular, Posgrado en Biotecnología, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
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da Costa GCV, Peralta RHS, Kalume DE, Alves ALGM, Peralta JM. A gel-free proteomic analysis of Taenia solium and Taenia crassiceps cysticerci vesicular extracts. Parasitol Res 2018; 117:3781-3790. [DOI: 10.1007/s00436-018-6080-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 09/04/2018] [Indexed: 01/17/2023]
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Campbell B, Cortes H, Annoscia G, Giannelli A, Parisi A, Latrofa MS, Dantas-Torres F, Cardoso L, Otranto D. Paramyosin of canine Onchocerca lupi: usefulness for the diagnosis of a neglected zoonotic disease. Parasit Vectors 2016; 9:493. [PMID: 27604904 PMCID: PMC5013582 DOI: 10.1186/s13071-016-1783-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/30/2016] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Of increasing importance to the medical and veterinary communities is the zoonotic filarioid nematode Onchocerca lupi. Onchocercosis, thus far found in wolves, dogs, cats and humans, is diagnosed via skin snips to detect microfilariae and surgical removal of adults from the eye of the host. These methods are time-consuming, laborious and invasive, highlighting the need for new tools for the diagnosis of O. lupi in susceptible hosts. Symptoms related to the presence of the adults in the eye can range from none apparent to severe, including blindness. No reliable chemotherapeutic protocols are available, as yet, to eliminate the infection. Paramyosin, an invertebrate-specific protein, has been well-studied as an allergen, diagnostic marker and vaccine candidate. The aim of this study, therefore, was to isolate and characterise paramyosin from O. lupi to assess its suitability for the development of a serological diagnostic assay. METHODS The adult and microfilarial stages of O. lupi were isolated from the eyes and skin of a 3-year-old male dog. Total RNA was extracted and reverse transcribed into single stranded cDNA. Reverse-transcription PCR was used to isolate a full-length paramyosin cDNA from adult worms and to investigate the temporal expression patterns of this gene. All amplicons were sequenced using dideoxy chain termination sequencing. Bioinformatics was used to predict the amino acid sequence of the gene, to compare the DNA and protein sequences with those available in public databases and to investigate the phylogenetic relationship of all molecules. Antibody binding sites were predicted using bioinformatics and mapped along with published antigenic epitopes against the O. lupi paramyosin protein. The native protein, and three smaller recombinantly expressed peptides, were subjected to western blot using serum from dogs both positive and negative for O. lupi. RESULTS Paramyosin of O. lupi was herein molecularly characterized, encoded by a transcript of 2,643 bp and producing a protein of 881 amino acids (101.24 kDa). The paramyosin transcript was detected, by reverse transcription PCR, in adults and microfilariae, but not in eggs. Phylogenetic analysis indicates that this molecule clusters with paramyosins from other filarioids to the exclusion of those from other taxa. A total of 621 unique antibody binding epitopes were predicted for this protein and another 28 were conserved in other organisms. This information was used to design three peptides, for recombinant expression, to identify the antibody binding epitope(s) and reduce potential cross-reactivity with serum from dogs infected with other filarioid nematodes. Native paramyosin, purified from microfilariae and adults, was detected by antibodies present in serum from dogs with known O. lupi infections. CONCLUSIONS Data provided herein may assist in the development of a serological diagnostic test, based on antibodies to O. lupi paramyosin, for the diagnosis of this infection, in order to gain more information on the real distribution of this little known filarioid of zoonotic concern.
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Affiliation(s)
- Bronwyn Campbell
- Dipartimento di Medicina Veterinaria, Universitá degli Studi di Bari, Bari, Italy
| | - Helder Cortes
- Victor Caeiro Laboratory of Parasitology, Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Évora, Portugal
| | - Giada Annoscia
- Dipartimento di Medicina Veterinaria, Universitá degli Studi di Bari, Bari, Italy
| | - Alessio Giannelli
- Dipartimento di Medicina Veterinaria, Universitá degli Studi di Bari, Bari, Italy
| | - Antonio Parisi
- IZS Istituto Zooprofilattico Sperimentale Puglia e Basilicata, Putignano, Italy
| | | | - Filipe Dantas-Torres
- Dipartimento di Medicina Veterinaria, Universitá degli Studi di Bari, Bari, Italy
- Departamento de Imunologia, Centro de Pesquisas Aggeu Magalhães (Fiocruz-PE), Recife, Brazil
| | - Luís Cardoso
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
| | - Domenico Otranto
- Dipartimento di Medicina Veterinaria, Universitá degli Studi di Bari, Bari, Italy
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Abou-Elhakam H, Rabee I, El Deeb S, El Amir A. Protection against Fasciola gigantica using paramyosin antigen as a candidate for vaccine production. Pak J Biol Sci 2013; 16:1449-1458. [PMID: 24511686 DOI: 10.3923/pjbs.2013.1449.1458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Yet no vaccine to protect ruminants against liver fluke infection has been commercialized. In an attempt to develop a suitable vaccine against Fasciola gigantica (F. gigantica) infection in rabbits, using 97 kDa Pmy antigen. It was found that, the mean worm burdens and bile egg count after challenge were reduced significantly by 58.40 and 61.40%, respectively. On the other hand, immunization of rabbits with Pmy induced a significant expression of humoral antibodies (IgM, total IgG, IgG1, IgG2 and IgG4) and different cytokines (IL-6, IL-10, L-12 and TNF-alpha). Among Ig isotypes, IgG2 and IgG4 were most dominant Post-infection (PI) while, recording a low IgG1 level. The dominance of IgG2 and IgG4 suggested late T helper1 (Th1) involvement in rabbit's cellular response. While, the low IgG1 level suggested Th2 response to adult F. gigantica worm Pmy. Among all cytokines, IL-10 was the highest in rabbits immunized with Pmy PI suggesting also the enhancement of Th2 response. It was clear that the native F. gigantica Pmy is considered as a relevant candidate for vaccination against fascioliasis. Also, these data suggested the immunoprophylactic effect of the native F. gigantica Pmy which is mediated by a mixed Th1/Th2 response.
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Affiliation(s)
- H Abou-Elhakam
- Department of Zoology, Faculty of Science, Cairo University, Egypt
| | - I Rabee
- Theodore Bilharz Research Institute, Giza, Egypt
| | - S El Deeb
- Department of Zoology, Faculty of Science, Cairo University, Egypt
| | - A El Amir
- Department of Zoology, Faculty of Science, Cairo University, Egypt
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Abou-Elhakam HMA, Bauomy IR, El Deeb SO, El Amir AM. Immunodiagnosis of fascioliasis using sandwich enzyme-linked immunosorbent assay for detection of Fasciola gigantica paramyosin antigen. Trop Parasitol 2013; 3:44-52. [PMID: 23961441 PMCID: PMC3745671 DOI: 10.4103/2229-5070.113907] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 06/24/2013] [Indexed: 11/04/2022] Open
Abstract
Background: Many immunological techniques have been developed over years using the different Fasciola antigens for diagnosis of parasitic infection and to replace the parasitological techniques, which are time consuming and usually lack sensitivity and reproducibility. Materials and Methods: In this study, Fasciola gigantica paramyosin (Pmy) antigen was early detected in cattle sera using sandwich enzyme-linked immunosorbent assay (ELISA), to evaluate the Pmy antigen performance in diagnosis. This work was conducted on 135 cattle blood samples, which were classified according to parasitological investigation into, healthy control (30), fascioliasis (75), and other parasites (30) groups. Results: The sensitivity of Sandwich ELISA was 97.33%, and the specificity was 95%, in comparison with parasitological examination, which recorded 66.66% sensitivity and 100% specificity, respectively. Conclusions: It was clear that the native F. gigantica Pmy is considered as a powerful antigen in early immunodiagnosis of fascioliasis, using a highly sensitive and specific sandwich ELISA technique.
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Espino AM, Torres D, Morales A, Delgado B, Quetel J, Osuna A. Fasciola hepatica: identification of CD4+ T-helper epitopes from the 11.5 kDa saposin-like protein SAP-2 using synthetic peptides. Exp Parasitol 2007; 117:65-73. [PMID: 17475253 PMCID: PMC2104776 DOI: 10.1016/j.exppara.2007.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2006] [Revised: 03/14/2007] [Accepted: 03/15/2007] [Indexed: 01/07/2023]
Abstract
Fasciola hepatica saposin-like protein (FhSAP-2) is a novel antigen expressed at an early stage of infection and has been shown to induce in rabbits a significant protection to infection with F. hepatica. There are no studies to identify the immunologically relevant regions of FhSAP-2. In this work the amino acid sequence of FhSAP-2 was analyzed to identify potential T-cell epitopes. A predictive algorithm identified four possible sites. Experimental determination of the T-cell epitopes was achieved using a panel of overlapping peptides spanning the entire sequence of FhSAP-2, which was evaluated for their ability to induce lymphoproliferative responses of spleen cells from 8 immunized BALB/c (H-2d) mice. Five different epitopes were identified. There was minimal agreement between theoretical and experimental approaches. It was found that peptides containing amino acid residues AVTFA and IDIDLCDICT as part of their structure induce high levels of IL-2 and IFNgammain vitro and was classified as Th1 epitopes. Peptides that contain the residues ADQTV, CIEFVQQEVD and YIIDHVDQHN induced significant amount of IL-4 and IL-2 were considered as containers of Th0 epitopes. Identification of prominent T-cell epitopes from FhSAP-2 offers the possibility of understanding how the CD4+ T-cell response is involved in protection against fasciolosis and how it is implicated in susceptibility to infection.
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Affiliation(s)
- Ana M Espino
- University of Puerto Rico, School of Medicine, Laboratory of Molecular Parasitology and Immunology, Department of Microbiology and Medical Zoology, Office A-302, PO Box 365067, San Juan, PR 00936-5067, Puerto Rico.
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Fonseca CT, Cunha-Neto E, Goldberg AC, Kalil J, de Jesus AR, Carvalho EM, Correa-Oliveira R, Hammer J, Sidney J, Sette A, Oliveira SC. Identification of paramyosin T cell epitopes associated with human resistance to Schistosoma mansoni reinfection. Clin Exp Immunol 2005; 142:539-47. [PMID: 16297167 PMCID: PMC1809527 DOI: 10.1111/j.1365-2249.2005.02941.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2005] [Indexed: 11/30/2022] Open
Abstract
Paramyosin, a Schistosoma mansoni myoprotein associated with human resistance to infection and reinfection, is a candidate antigen to compose a subunit vaccine against schistosomiasis. In this study, 11 paramyosin peptides selected by TEPITOPE algorithm as promiscuous epitopes were produced synthetically and tested in proliferation and in vitro human leucocyte antigen (HLA)-DR binding assays. A differential proliferative response was observed in individuals resistant to reinfection compared to individuals susceptible to reinfection in response to Para (210-226) peptide stimulation. In addition, this peptide was able to bind to all HLA-DR molecules tested in HLA-DR binding assays, confirming its promiscuity. Para (6-22) and Para (355-371) were also shown to be promiscuous peptides, because they were able to bind to the six and eight most prevalent HLA-DR alleles used in HLA-DR binding assays, respectively, and were also recognized by T cells of the individuals studied. These results suggest that these paramyosin peptides are promising antigens to compose an anti-schistosomiasis vaccine.
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Affiliation(s)
- C T Fonseca
- Departamento de Bioquímica e Imunologia, Instituto de Investigação em Imunologia-Instituto do Milênio, Universidade Federal de Minas Gerais, Belo Horizonte-MG, Brazil
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Abstract
This is the first of a projected series of canonic reviews covering all invertebrate muscle literature prior to 2005 and covers muscle genes and proteins except those involved in excitation-contraction coupling (e.g., the ryanodine receptor) and those forming ligand- and voltage-dependent channels. Two themes are of primary importance. The first is the evolutionary antiquity of muscle proteins. Actin, myosin, and tropomyosin (at least, the presence of other muscle proteins in these organisms has not been examined) exist in muscle-like cells in Radiata, and almost all muscle proteins are present across Bilateria, implying that the first Bilaterian had a complete, or near-complete, complement of present-day muscle proteins. The second is the extraordinary diversity of protein isoforms and genetic mechanisms for producing them. This rich diversity suggests that studying invertebrate muscle proteins and genes can be usefully applied to resolve phylogenetic relationships and to understand protein assembly coevolution. Fully achieving these goals, however, will require examination of a much broader range of species than has been heretofore performed.
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Affiliation(s)
- Scott L Hooper
- Neuroscience Program, Department of Biological Sciences, Irvine Hall, Ohio University, Athens, Ohio 45701, USA.
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Gobert GN, McManus DP. Update on paramyosin in parasitic worms. Parasitol Int 2005; 54:101-7. [PMID: 15866471 DOI: 10.1016/j.parint.2005.02.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2004] [Accepted: 02/22/2005] [Indexed: 11/17/2022]
Abstract
Paramyosin was first identified as a structural component of invertebrate muscle. Analysis of crude, native, adult schistosome worm preparations identified a highly immunogenic protein which was later identified as paramyosin. Early vaccination/challenge studies with native paramyosin produced encouraging levels of protective efficacy against schistosomes, which led to the question as to how a sub-tegumental (muscular) protein could provide a target for vaccine-mediated immunological attack. Immunolocalisation studies of schistosomes confirmed the presence of paramyosin within the post-acetabular glands of cercariae and on the tegumental surface of lung schistosomula. Here we present an update on the more recent research on paramyosin in parasitic worms that has focused primarily in two directions: (i) further testing of the vaccine potency of paramyosin against schistosomes and other parasitic worms; and (ii) characterisation of the protein at the molecular and biochemical levels.
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Affiliation(s)
- Geoffrey N Gobert
- Molecular Parasitology Laboratory, Australian Centre for International and Tropical Health and Nutrition, The Queensland Institute of Medical Research, Post Office Royal Brisbane Hospital, Queensland 4029, Australia.
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