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Matos GM, Lewis MD, Talavera-López C, Yeo M, Grisard EC, Messenger LA, Miles MA, Andersson B. Microevolution of Trypanosoma cruzi reveals hybridization and clonal mechanisms driving rapid genome diversification. eLife 2022; 11:75237. [PMID: 35535495 PMCID: PMC9098224 DOI: 10.7554/elife.75237] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 04/22/2022] [Indexed: 12/11/2022] Open
Abstract
Protozoa and fungi are known to have extraordinarily diverse mechanisms of genetic exchange. However, the presence and epidemiological relevance of genetic exchange in Trypanosoma cruzi, the agent of Chagas disease, has been controversial and debated for many years. Field studies have identified both predominantly clonal and sexually recombining natural populations. Two of six natural T. cruzi lineages (TcV and TcVI) show hybrid mosaicism, using analysis of single-gene locus markers. The formation of hybrid strains in vitro has been achieved and this provides a framework to study the mechanisms and adaptive significance of genetic exchange. Using whole genome sequencing of a set of experimental hybrids strains, we have confirmed that hybrid formation initially results in tetraploid parasites. The hybrid progeny showed novel mutations that were not attributable to either (diploid) parent showing an increase in amino acid changes. In long-term culture, up to 800 generations, there was a variable but gradual erosion of progeny genomes towards triploidy, yet retention of elevated copy number was observed at several core housekeeping loci. Our findings indicate hybrid formation by fusion of diploid T. cruzi, followed by sporadic genome erosion, but with substantial potential for adaptive evolution, as has been described as a genetic feature of other organisms, such as some fungi.
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Affiliation(s)
- Gabriel Machado Matos
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianopolis, Brazil.,Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
| | - Michael D Lewis
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Carlos Talavera-López
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden.,Institute of Computational Biology, Computational Health Centre, Helmholtz Munich, Munich, Germany
| | - Matthew Yeo
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Edmundo C Grisard
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina, Florianopolis, Brazil
| | - Louisa A Messenger
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Michael A Miles
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Björn Andersson
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
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2
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Pinto AO, Carvalho D, Frizzo C, Lopes K, Tessari GB, Catecati T, Dhom-Lemos LC, Pasquali AKS, Quaresma PF, Stoco PH, Grisard EC, Steindel M, Wagner G. First case of canine visceral leishmaniasis in the midwestern of Santa Catarina State, Brazil. BRAZ J BIOL 2021; 82:e241162. [PMID: 34133561 DOI: 10.1590/1519-6984.241162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/28/2020] [Indexed: 11/22/2022] Open
Abstract
Canine visceral leishmaniasis (CVL) caused by Leishmania (Leishmania) infantum is transmitted by phlebotomine sandflies and a major zoonotic disease in Brazil. Due to the southward expansion of the disease within the country and the central role of dogs as urban reservoirs of the parasite, we have investigated the occurrence of CVL in two municipalities Erval Velho and Herval d'Oeste in the Midwest region of Santa Catarina state. Peripheral blood samples from 126 dogs were collected in both cities and tested for anti-L. infantum antibodies by indirect enzyme-linked immunosorbent assay (ELISA) and indirect immunofluorescence reaction (IIF) and for the presence of parasite DNA by polymerase chain reaction (PCR) in peripheral blood. From examined dogs, 35.71% (45/126) were positive for at least one of the three tests and two (1.6%) were positive in all performed tests. Twelve dogs (9.5%) were positive for both ELISA and IIF, while 21 dogs were exclusively positive for ELISA (16.7%), and 15 (11.9%) for IIF. L. infantum k-DNA was detected by PCR in 9 out of 126 dogs (7.1%) and clinical symptoms compatible with CVL were observed for 6 dogs. Taken together, these results indicate the transmission of CVL in this region, highlighting the needs for epidemiological surveillance and implementation of control measures for CVL transmission in this region.
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Affiliation(s)
- A O Pinto
- Programa de Mestrado em Biociências e Saúde, Universidade do Oeste de Santa Catarina - UNOESC, Joaçaba, SC, Brasil.,Curso de Graduação em Medicina Veterinária, Universidade do Oeste de Santa Catarina - UNOESC, Campos Novos, SC, Brasil
| | - D Carvalho
- Programa de Mestrado em Biociências e Saúde, Universidade do Oeste de Santa Catarina - UNOESC, Joaçaba, SC, Brasil
| | - C Frizzo
- Programa de Mestrado em Biociências e Saúde, Universidade do Oeste de Santa Catarina - UNOESC, Joaçaba, SC, Brasil
| | - K Lopes
- Programa de Mestrado em Biociências e Saúde, Universidade do Oeste de Santa Catarina - UNOESC, Joaçaba, SC, Brasil
| | - G B Tessari
- Curso de Graduação em Medicina Veterinária, Universidade do Oeste de Santa Catarina - UNOESC, Campos Novos, SC, Brasil
| | - T Catecati
- Laboratório de Protozoologia, Universidade do Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil
| | - L C Dhom-Lemos
- Laboratório de Protozoologia, Universidade do Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil
| | - A K S Pasquali
- Curso de Graduação em Medicina Veterinária, Universidade do Oeste de Santa Catarina - UNOESC, Campos Novos, SC, Brasil
| | - P F Quaresma
- Laboratório de Protozoologia, Universidade do Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil
| | - P H Stoco
- Laboratório de Protozoologia, Universidade do Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil
| | - E C Grisard
- Laboratório de Protozoologia, Universidade do Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil
| | - M Steindel
- Laboratório de Protozoologia, Universidade do Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil
| | - G Wagner
- Programa de Mestrado em Biociências e Saúde, Universidade do Oeste de Santa Catarina - UNOESC, Joaçaba, SC, Brasil.,Laboratório de Protozoologia, Universidade do Federal de Santa Catarina - UFSC, Florianópolis, SC, Brasil
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3
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Talavera-López C, Messenger LA, Lewis MD, Yeo M, Reis-Cunha JL, Matos GM, Bartholomeu DC, Calzada JE, Saldaña A, Ramírez JD, Guhl F, Ocaña-Mayorga S, Costales JA, Gorchakov R, Jones K, Nolan MS, Teixeira SMR, Carrasco HJ, Bottazzi ME, Hotez PJ, Murray KO, Grijalva MJ, Burleigh B, Grisard EC, Miles MA, Andersson B. Repeat-Driven Generation of Antigenic Diversity in a Major Human Pathogen, Trypanosoma cruzi. Front Cell Infect Microbiol 2021; 11:614665. [PMID: 33747978 PMCID: PMC7966520 DOI: 10.3389/fcimb.2021.614665] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 01/22/2021] [Indexed: 12/18/2022] Open
Abstract
Trypanosoma cruzi, a zoonotic kinetoplastid protozoan parasite, is the causative agent of American trypanosomiasis (Chagas disease). Having a very plastic, repetitive and complex genome, the parasite displays a highly diverse repertoire of surface molecules, with pivotal roles in cell invasion, immune evasion and pathogenesis. Before 2016, the complexity of the genomic regions containing these genes impaired the assembly of a genome at chromosomal level, making it impossible to study the structure and function of the several thousand repetitive genes encoding the surface molecules of the parasite. We here describe the genome assembly of the Sylvio X10/1 genome sequence, which since 2016 has been used as a reference genome sequence for T. cruzi clade I (TcI), produced using high coverage PacBio single-molecule sequencing. It was used to analyze deep Illumina sequence data from 34 T. cruzi TcI isolates and clones from different geographic locations, sample sources and clinical outcomes. Resolution of the surface molecule gene distribution showed the unusual duality in the organization of the parasite genome, a synteny of the core genomic region with related protozoa flanked by unique and highly plastic multigene family clusters encoding surface antigens. The presence of abundant interspersed retrotransposons in these multigene family clusters suggests that these elements are involved in a recombination mechanism for the generation of antigenic variation and evasion of the host immune response on these TcI strains. The comparative genomic analysis of the cohort of TcI strains revealed multiple cases of such recombination events involving surface molecule genes and has provided new insights into T. cruzi population structure.
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Affiliation(s)
- Carlos Talavera-López
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
- European Bioinformatics Institute, Wellcome Sanger Institute, Hinxton, United Kingdom
| | - Louisa A. Messenger
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Michael D. Lewis
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Matthew Yeo
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - João Luís Reis-Cunha
- Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gabriel Machado Matos
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal Santa Catarina, Florianópolis, Brazil
| | | | - José E. Calzada
- Departamento de Parasitología, Instituto Conmemorativo Gorgas de Estudios de la Salud, Ciudad de Panamá, Panama
| | - Azael Saldaña
- Departamento de Parasitología, Instituto Conmemorativo Gorgas de Estudios de la Salud, Ciudad de Panamá, Panama
| | - Juan David Ramírez
- Grupo de Investigaciones Microbiológicas-UR (GIMUR), Departamento de Biología, Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Felipe Guhl
- Grupo de Investigaciones en Microbiología y Parasitología Tropical (CIMPAT), Tropical Parasitology Research Center, Universidad de Los Andes, Bogotá, Colombia
| | - Sofía Ocaña-Mayorga
- Centro de Investigación para la Salud en América Latina (CISeAL), Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Jaime A. Costales
- Centro de Investigación para la Salud en América Latina (CISeAL), Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
| | - Rodion Gorchakov
- Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development, National School of Tropical Medicine, Department of Pediatrics - Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Kathryn Jones
- Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development, National School of Tropical Medicine, Department of Pediatrics - Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Melissa S. Nolan
- Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development, National School of Tropical Medicine, Department of Pediatrics - Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Santuza M. R. Teixeira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Hernán José Carrasco
- Laboratorio de Biología Molecular de Protozoarios, Instituto de Medicina Tropical, Facultad de Medicina, Universidad Central de Venezuela, Caracas, Venezuela
| | - Maria Elena Bottazzi
- Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development, National School of Tropical Medicine, Department of Pediatrics - Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Peter J. Hotez
- Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development, National School of Tropical Medicine, Department of Pediatrics - Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Kristy O. Murray
- Sabin Vaccine Institute and Texas Children’s Hospital Center for Vaccine Development, National School of Tropical Medicine, Department of Pediatrics - Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Mario J. Grijalva
- Centro de Investigación para la Salud en América Latina (CISeAL), Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Quito, Ecuador
- Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Infectious and Tropical Disease Institute, Ohio University, Athens, OH, United States
| | - Barbara Burleigh
- Department of Immunology and Infectious Diseases, T.H. Chan School of Public Health, Harvard University, Boston, MA, United States
| | - Edmundo C. Grisard
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal Santa Catarina, Florianópolis, Brazil
| | - Michael A. Miles
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Björn Andersson
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
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4
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Zamparette CP, Schorner M, Campos E, Moura Q, Cerdeira L, Tartari DC, Sereia AFR, Cunha P, Fontana H, de Oliveira LFV, Grisard EC, Lincopan N, Bazzo ML, Sincero TCM. IncX4 Plasmid-Mediated mcr-1.1 in Polymyxin-Resistant Escherichia coli from Outpatients in Santa Catarina, Southern Brazil. Microb Drug Resist 2020; 26:1326-1333. [PMID: 32004096 DOI: 10.1089/mdr.2019.0203] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Plasmid-mediated polymyxin resistance has become a global health concern, not only because its dissemination has occurred drastically but also because it has begun to be reported in multidrug-resistant (MDR) pathogens. We hereby report microbiological and genomic characteristics of two mcr-1.1-positive polymyxin-resistant Escherichia coli isolates identified for the first time in community patients, in Santa Catarina, Southern Brazil. E. coli strains belonging to ST206 and ST354 and the resistome analysis revealed the presence of clinically important genes responsible for MDR profile. Interestingly, in both polymyxin-resistant E. coli strains, mcr-1.1 genes were carried by IncX4 plasmids, responsible for the worldwide dissemination of mcr-type genes. In this regard, plasmid backbones were almost identical to the first IncX4 plasmid reported in Brazil and sharing more than 99.9% identity to IncX4 plasmids from China, also lacking the ISApl1 insertion sequence upstream of mcr-1. In conclusion, these data confirm the presence of international ST206 and ST354 carrying mcr-1.1 genes and that the IncX4 plasmids have been key vectors contributing to the endemic status of mcr-1.1-positive polymyxin-resistant E. coli in Brazil. Also, we described the first known clinical isolate with the mrc1.1 gene in Santa Catarina state, Brazil, showing that plasmid-mediated polymyxin resistance has been affecting humans earlier than has been known so far.
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Affiliation(s)
- Caetana P Zamparette
- Department of Clinical Analysis, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Marcos Schorner
- Department of Clinical Analysis, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Elizandra Campos
- Department of Clinical Analysis, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Quézia Moura
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Louise Cerdeira
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Daniela C Tartari
- Department of Clinical Analysis, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Brazil
| | | | - Patricia Cunha
- Neoprospecta Microbiome Technologies, Florianopolis, Brazil
| | - Herrison Fontana
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Edmundo C Grisard
- Department of Microbiology, Imunology and Parasitology, Biological Sciences Center, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Nilton Lincopan
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Maria Luiza Bazzo
- Department of Clinical Analysis, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Brazil
| | - Thaís C M Sincero
- Department of Clinical Analysis, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, Brazil
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5
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Yamashiro LH, Eto C, Soncini M, Horewicz V, Garcia M, Schlindwein AD, Grisard EC, Rovaris DB, Báfica A. Isoniazid-induced control of Mycobacterium tuberculosis by primary human cells requires interleukin-1 receptor and tumor necrosis factor. Eur J Immunol 2016; 46:1936-47. [PMID: 27230303 DOI: 10.1002/eji.201646349] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/20/2016] [Accepted: 05/24/2016] [Indexed: 11/08/2022]
Abstract
Proinflammatory cytokines are critical mediators that control Mycobacterium tuberculosis (Mtb) growth during active tuberculosis (ATB). To further inhibit bacterial proliferation in diseased individuals, drug inhibitors of cell wall synthesis such as isoniazid (INH) are employed. However, whether INH presents an indirect effect on bacterial growth by regulating host cytokines during ATB is not well known. To examine this hypothesis, we used an in vitro human granuloma system generated with primary leukocytes from healthy donors adapted to model ATB. Intense Mtb proliferation in cell cultures was associated with monocyte/macrophage activation and secretion of IL-1β and TNF. Treatment with INH significantly reduced Mtb survival, but altered neither T-cell-mediated Mtb killing, nor production of IL-1β and TNF. However, blockade of both IL-1R1 and TNF signaling rescued INH-induced killing, suggesting synergistic roles of these cytokines in mediating control of Mtb proliferation. Additionally, mycobacterial killing by INH was highly dependent upon drug activation by the pathogen catalase-peroxidase KatG and involved a host PI3K-dependent pathway. Finally, experiments using coinfected (KatG-mutated and H37Rv strains) cells suggested that active INH does not directly enhance host-mediated killing of Mtb. Our results thus indicate that Mtb-stimulated host IL-1 and TNF have potential roles in TB chemotherapy.
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Affiliation(s)
- Lívia H Yamashiro
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Carolina Eto
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Marina Soncini
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Verônica Horewicz
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Magno Garcia
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Aline D Schlindwein
- Laboratory of Protozoology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil.,Central Public Health Laboratory/LACEN, Florianópolis, Brazil
| | - Edmundo C Grisard
- Laboratory of Protozoology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - André Báfica
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis, Brazil
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6
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Sá ARN, Dias GBM, Kimoto KY, Steindel M, Grisard EC, Toledo MJO, Gomes ML. Genotyping of Trypanosoma cruzi DTUs and Trypanosoma rangeli genetic groups in experimentally infected Rhodnius prolixus by PCR-RFLP. Acta Trop 2016; 156:115-21. [PMID: 26792202 DOI: 10.1016/j.actatropica.2016.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/22/2015] [Accepted: 01/06/2016] [Indexed: 01/22/2023]
Abstract
The specific detection and genetic typing of trypanosomes that infect humans, mammalian reservoirs, and vectors is crucial for diagnosis and epidemiology. We utilized a PCR-RFLP assay that targeted subunit II of cytochrome oxidase and 24Sα-rDNA to simultaneously detect and discriminate six Trypanosoma cruzi discrete typing units (DTUs) and two genetic groups of Trypanosoma rangeli (KP1+/KP1-) in intestinal contents of experimentally infected Rhodnius prolixus. The PCR assays showed that in 23 of 29 (79.4%) mixed infections with the six T. cruzi DTUs and mixed infections with individual DTUs and/or groups KP1+ and KP1-, both parasites were successfully detected. In six mixed infections that involved TcIII, the TcI, TcII, TcV, and TcVI DTUs predominated to the detriment of TcIII, indicating the selection of genetic groups. Interactions between different genetic groups and vectors may lead to genetic selection over TcIII. The elimination of this DTU by the immune system of the vector appears unlikely because TcIII was present in other mixed infections (TcIII/TcIV and TcIII/KP1+). Both molecular markers used in this study were sensitive and specific, demonstrating their usefulness in a wide geographical area where distinct genotypes of these two species are sympatric. Although the cellular and molecular mechanisms that are involved in parasite-vector interactions are still poorly understood, our results indicate a dynamic selection toward specific T. cruzi DTUs in R. prolixus during mixed genotype infections.
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Affiliation(s)
- Amanda R N Sá
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Avenida Colombo, 5790, Jardim Universitário, Maringá, Paraná 87020-900, Brazil; Docente do curso de Biomedicina, Faculdade Integrado, Campo Mourão, Rodovia BR 158, KM 207, Campo Mourão, Paraná 87300-970, Brazil.
| | - Greicy B M Dias
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Campus João David Ferreira Lima, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil.
| | - Karen Y Kimoto
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Avenida Colombo, 5790, Jardim Universitário, Maringá, Paraná 87020-900, Brazil.
| | - Mário Steindel
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Campus João David Ferreira Lima, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil.
| | - Edmundo C Grisard
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Campus João David Ferreira Lima, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil.
| | - Max Jean O Toledo
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Avenida Colombo, 5790, Jardim Universitário, Maringá, Paraná 87020-900, Brazil.
| | - Mônica L Gomes
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá (UEM), Avenida Colombo, 5790, Jardim Universitário, Maringá, Paraná 87020-900, Brazil.
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7
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Tschoeke DA, Nunes GL, Jardim R, Lima J, Dumaresq AS, Gomes MR, de Mattos Pereira L, Loureiro DR, Stoco PH, de Matos Guedes HL, de Miranda AB, Ruiz J, Pitaluga A, Silva FP, Probst CM, Dickens NJ, Mottram JC, Grisard EC, Dávila AM. The Comparative Genomics and Phylogenomics of Leishmania amazonensis Parasite. Evol Bioinform Online 2014; 10:131-53. [PMID: 25336895 PMCID: PMC4182287 DOI: 10.4137/ebo.s13759] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Revised: 02/21/2014] [Accepted: 02/25/2014] [Indexed: 12/20/2022] Open
Abstract
Leishmaniasis is an infectious disease caused by Leishmania species. Leishmania amazonensis is a New World Leishmania species belonging to the Mexicana complex, which is able to cause all types of leishmaniasis infections. The L. amazonensis reference strain MHOM/BR/1973/M2269 was sequenced identifying 8,802 codifying sequences (CDS), most of them of hypothetical function. Comparative analysis using six Leishmania species showed a core set of 7,016 orthologs. L. amazonensis and Leishmania mexicana share the largest number of distinct orthologs, while Leishmania braziliensis presented the largest number of inparalogs. Additionally, phylogenomic analysis confirmed the taxonomic position for L. amazonensis within the “Mexicana complex”, reinforcing understanding of the split of New and Old World Leishmania. Potential non-homologous isofunctional enzymes (NISE) were identified between L. amazonensis and Homo sapiens that could provide new drug targets for development.
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Affiliation(s)
- Diogo A Tschoeke
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil. ; Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Gisele L Nunes
- Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Rodrigo Jardim
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil. ; Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Joana Lima
- Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Aline Sr Dumaresq
- Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Monete R Gomes
- Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Leandro de Mattos Pereira
- Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Daniel R Loureiro
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil
| | - Patricia H Stoco
- Laboratório de Protozoologia, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Herbert Leonel de Matos Guedes
- Laboratório de Inflamação Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil. ; Wellcome Trust Centre for Molecular Parasitology, Institute of Immunity, Infection and Inflammation, College of MVLS, University of Glasgow, Glasgow, UK
| | - Antonio Basilio de Miranda
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil. ; Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Jeronimo Ruiz
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil. ; Instituto René Rachou (Fiocruz/IRR), Belo Horizonte, MG, Brazil
| | - André Pitaluga
- Laboratório de Biologia Molecular de Parasitas e Vetores, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Floriano P Silva
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil. ; Laboratório de Bioquímica de Proteínas e Peptídeos, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
| | - Christian M Probst
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil. ; Instituto Carlos Chagas (Fiocruz/ICC), Curitiba, PR, Brazil
| | - Nicholas J Dickens
- Wellcome Trust Centre for Molecular Parasitology, Institute of Immunity, Infection and Inflammation, College of MVLS, University of Glasgow, Glasgow, UK
| | - Jeremy C Mottram
- Wellcome Trust Centre for Molecular Parasitology, Institute of Immunity, Infection and Inflammation, College of MVLS, University of Glasgow, Glasgow, UK
| | - Edmundo C Grisard
- Laboratório de Protozoologia, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Alberto Mr Dávila
- Pólo de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (Fiocruz/IOC), Rio de Janeiro, RJ, Brazil. ; Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, RJ, Brazil
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8
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Wagner G, Jardim R, Tschoeke DA, Loureiro DR, Ocaña KACS, Ribeiro ACB, Emmel VE, Probst CM, Pitaluga AN, Grisard EC, Cavalcanti MC, Campos MLM, Mattoso M, Dávila AMR. STINGRAY: system for integrated genomic resources and analysis. BMC Res Notes 2014; 7:132. [PMID: 24606808 PMCID: PMC4015962 DOI: 10.1186/1756-0500-7-132] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 02/28/2014] [Indexed: 01/30/2023] Open
Abstract
Background The STINGRAY system has been conceived to ease the tasks of integrating, analyzing, annotating and presenting genomic and expression data from Sanger and Next Generation Sequencing (NGS) platforms. Findings STINGRAY includes: (a) a complete and integrated workflow (more than 20 bioinformatics tools) ranging from functional annotation to phylogeny; (b) a MySQL database schema, suitable for data integration and user access control; and (c) a user-friendly graphical web-based interface that makes the system intuitive, facilitating the tasks of data analysis and annotation. Conclusion STINGRAY showed to be an easy to use and complete system for analyzing sequencing data. While both Sanger and NGS platforms are supported, the system could be faster using Sanger data, since the large NGS datasets could potentially slow down the MySQL database usage. STINGRAY is available at
http://stingray.biowebdb.org and the open source code at
http://sourceforge.net/projects/stingray-biowebdb/.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Alberto M R Dávila
- Laboratório de Biologia Computacional e Sistemas, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Avenida Brasil 4365, 21040-360 Rio de Janeiro, Rio de Janeiro, Brazil.
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9
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Butler CE, de Carvalho TMU, Grisard EC, Field RA, Tyler KM. Trans-sialidase stimulates eat me response from epithelial cells. Traffic 2013; 14:853-69. [PMID: 23601193 PMCID: PMC3770925 DOI: 10.1111/tra.12078] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 04/15/2013] [Accepted: 04/18/2013] [Indexed: 12/11/2022]
Abstract
Epithelial cell invasion by the protozoan parasite Trypanosoma cruzi is enhanced by the presence of an enzyme expressed on its cell surface during the trypomastigote life cycle stage. The enzyme, trans-sialidase (TS), is a member of one of the largest gene families expressed by the parasite and the role of its activity in mediating epithelial cell entry has not hitherto been understood. Here we show that the T. cruzi TS generates an eat me signal which is capable of enabling epithelial cell entry. We have utilized purified, recombinant, active (TcTS) and inactive (TcTS2V0) TS coated onto beads to challenge an epithelial cell line. We find that TS activity acts upon G protein coupled receptors present at the epithelial cell synapse with the coated bead, thereby enhancing cell entry. By so doing, we provide evidence that TS proteins bind glycans, mediate the formation of distinct synaptic domains and promote macropinocytotic uptake of microparticles into a perinuclear compartment in a manner which may emulate entosis.
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Affiliation(s)
- Claire E Butler
- Biomedical Research Centre, Norwich Medical School, University of East Anglia, Norwich, UK
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10
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Motta MCM, Martins ACDA, de Souza SS, Catta-Preta CMC, Silva R, Klein CC, de Almeida LGP, de Lima Cunha O, Ciapina LP, Brocchi M, Colabardini AC, de Araujo Lima B, Machado CR, de Almeida Soares CM, Probst CM, de Menezes CBA, Thompson CE, Bartholomeu DC, Gradia DF, Pavoni DP, Grisard EC, Fantinatti-Garboggini F, Marchini FK, Rodrigues-Luiz GF, Wagner G, Goldman GH, Fietto JLR, Elias MC, Goldman MHS, Sagot MF, Pereira M, Stoco PH, de Mendonça-Neto RP, Teixeira SMR, Maciel TEF, de Oliveira Mendes TA, Ürményi TP, de Souza W, Schenkman S, de Vasconcelos ATR. Predicting the proteins of Angomonas deanei, Strigomonas culicis and their respective endosymbionts reveals new aspects of the trypanosomatidae family. PLoS One 2013; 8:e60209. [PMID: 23560078 PMCID: PMC3616161 DOI: 10.1371/journal.pone.0060209] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 02/22/2013] [Indexed: 11/30/2022] Open
Abstract
Endosymbiont-bearing trypanosomatids have been considered excellent models for the study of cell evolution because the host protozoan co-evolves with an intracellular bacterium in a mutualistic relationship. Such protozoa inhabit a single invertebrate host during their entire life cycle and exhibit special characteristics that group them in a particular phylogenetic cluster of the Trypanosomatidae family, thus classified as monoxenics. In an effort to better understand such symbiotic association, we used DNA pyrosequencing and a reference-guided assembly to generate reads that predicted 16,960 and 12,162 open reading frames (ORFs) in two symbiont-bearing trypanosomatids, Angomonas deanei (previously named as Crithidia deanei) and Strigomonas culicis (first known as Blastocrithidia culicis), respectively. Identification of each ORF was based primarily on TriTrypDB using tblastn, and each ORF was confirmed by employing getorf from EMBOSS and Newbler 2.6 when necessary. The monoxenic organisms revealed conserved housekeeping functions when compared to other trypanosomatids, especially compared with Leishmania major. However, major differences were found in ORFs corresponding to the cytoskeleton, the kinetoplast, and the paraflagellar structure. The monoxenic organisms also contain a large number of genes for cytosolic calpain-like and surface gp63 metalloproteases and a reduced number of compartmentalized cysteine proteases in comparison to other TriTryp organisms, reflecting adaptations to the presence of the symbiont. The assembled bacterial endosymbiont sequences exhibit a high A+T content with a total of 787 and 769 ORFs for the Angomonas deanei and Strigomonas culicis endosymbionts, respectively, and indicate that these organisms hold a common ancestor related to the Alcaligenaceae family. Importantly, both symbionts contain enzymes that complement essential host cell biosynthetic pathways, such as those for amino acid, lipid and purine/pyrimidine metabolism. These findings increase our understanding of the intricate symbiotic relationship between the bacterium and the trypanosomatid host and provide clues to better understand eukaryotic cell evolution.
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Affiliation(s)
- Maria Cristina Machado Motta
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Allan Cezar de Azevedo Martins
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Silvana Sant’Anna de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
- Laboratório de Metabolismo Macromolecular Firmino Torres de Castro, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carolina Moura Costa Catta-Preta
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rosane Silva
- Laboratório de Metabolismo Macromolecular Firmino Torres de Castro, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Cecilia Coimbra Klein
- Laboratório Nacional de Computação Científica, Laboratório de Bioinformática, Petrópolis, Rio de Janeiro, Brazil
- BAMBOO Team, INRIA Grenoble-Rhône-Alpes, Villeurbanne, France
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, Villeurbanne, France
| | | | - Oberdan de Lima Cunha
- Laboratório Nacional de Computação Científica, Laboratório de Bioinformática, Petrópolis, Rio de Janeiro, Brazil
| | - Luciane Prioli Ciapina
- Laboratório Nacional de Computação Científica, Laboratório de Bioinformática, Petrópolis, Rio de Janeiro, Brazil
| | - Marcelo Brocchi
- Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Ana Cristina Colabardini
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Bruna de Araujo Lima
- Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Carlos Renato Machado
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Célia Maria de Almeida Soares
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Christian Macagnan Probst
- Laboratório de Biologia Molecular de Tripanossomatídeos, Instituto Carlos Chagas/Fundação Oswaldo Cruz, Curitiba, Paraná, Brazil
- Laboratório de Genômica Funcional, Instituto Carlos Chagas/Fundação Oswaldo Cruz, Curitiba, Paraná, Brazil
| | - Claudia Beatriz Afonso de Menezes
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Claudia Elizabeth Thompson
- Laboratório Nacional de Computação Científica, Laboratório de Bioinformática, Petrópolis, Rio de Janeiro, Brazil
| | - Daniella Castanheira Bartholomeu
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Daniela Fiori Gradia
- Laboratório de Biologia Molecular de Tripanossomatídeos, Instituto Carlos Chagas/Fundação Oswaldo Cruz, Curitiba, Paraná, Brazil
| | - Daniela Parada Pavoni
- Laboratório de Genômica Funcional, Instituto Carlos Chagas/Fundação Oswaldo Cruz, Curitiba, Paraná, Brazil
| | - Edmundo C. Grisard
- Laboratórios de Protozoologia e de Bioinformática, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Fabiana Fantinatti-Garboggini
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | | | - Gabriela Flávia Rodrigues-Luiz
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Glauber Wagner
- Laboratórios de Protozoologia e de Bioinformática, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Gustavo Henrique Goldman
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Juliana Lopes Rangel Fietto
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Maria Carolina Elias
- Laboratório Especial de Ciclo Celular, Instituto Butantan, São Paulo, São Paulo, Brazil
| | - Maria Helena S. Goldman
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Marie-France Sagot
- BAMBOO Team, INRIA Grenoble-Rhône-Alpes, Villeurbanne, France
- Laboratoire de Biométrie et Biologie Evolutive, Université de Lyon, Université Lyon 1, CNRS, UMR5558, Villeurbanne, France
| | - Maristela Pereira
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Patrícia H. Stoco
- Laboratórios de Protozoologia e de Bioinformática, Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Rondon Pessoa de Mendonça-Neto
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Santuza Maria Ribeiro Teixeira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Talles Eduardo Ferreira Maciel
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Tiago Antônio de Oliveira Mendes
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Turán P. Ürményi
- Laboratório de Metabolismo Macromolecular Firmino Torres de Castro, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sergio Schenkman
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, São Paulo, Brazil
- * E-mail: (ATRdV); (SS)
| | - Ana Tereza Ribeiro de Vasconcelos
- Laboratório Nacional de Computação Científica, Laboratório de Bioinformática, Petrópolis, Rio de Janeiro, Brazil
- * E-mail: (ATRdV); (SS)
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11
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Steindel M, Menin Á, Evangelista T, Stoco PH, Marlow MA, Fleith RC, Pilati C, Grisard EC. Outbreak of autochthonous canine visceral leishmaniasis in Santa Catarina, Brazil. Pesq Vet Bras 2013. [DOI: 10.1590/s0100-736x2013000400013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present study reports the first outbreak of autochthonous canine visceral leishmaniasis in Florianópolis, Santa Catarina, southern Brazil. Following the report of two cases of CVL, the Control Center of Zoonotic Diseases conducted a serological survey by ELISA and IFAT assays in seven districts of the Santa Catarina Island. Eleven seropositive dogs of autochthonous transmission were used in the present study. Infection by Leishmania sp. was confirmed by parasitological examination of bone marrow, liver, spleen and lymph nodes, culture in Schneider's medium and PCR. Leishmania sp. isolates were characterized by PCR-RFLP and hybridization with specific probes, allowing for the identification of Leishmania infantum. Autochthonous transmission of this disease in an area with high tourist traffic presents a major public health concern and signifies the emergence of an important zoonosis in southern Brazil. Therefore, the implementation of surveillance and control measures is imperative to prevent the spread of the disease among the canine population as well as transmission to the human population.
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Affiliation(s)
| | | | | | | | | | | | - Celso Pilati
- Universidade do Estado de Santa Catarina, Brazil
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12
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Urrea DA, Guhl F, Herrera CP, Falla A, Carranza JC, Cuba-Cuba C, Triana-Chávez O, Grisard EC, Vallejo GA. Sequence analysis of the spliced-leader intergenic region (SL-IR) and random amplified polymorphic DNA (RAPD) of Trypanosoma rangeli strains isolated from Rhodnius ecuadoriensis, R. colombiensis, R. pallescens and R. prolixus suggests a degree of co-evolution between parasites and vectors. Acta Trop 2011; 120:59-66. [PMID: 21718675 DOI: 10.1016/j.actatropica.2011.05.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2010] [Revised: 05/15/2011] [Accepted: 05/31/2011] [Indexed: 11/19/2022]
Abstract
Spliced leader intergenic region (SL-IR) sequences from 23 Trypanosoma rangeli strains isolated from the salivary glands of Rhodnius colombiensis, R. ecuadoriensis, R. pallescens and R. prolixus and two human strains revealed the existence of 4 genotypes with CA, GT, TA, ATT and GTAT microsatellite repeats and the presence of insertions/deletions (INDEL) and single nucleotide polymorphism (SNP) characterizing each genotype. The strains isolated from the same vector species or the same Rhodnius evolutionary line presented the same genotypes, even in cases where strains had been isolated from vectors captured in geographically distant regions. The dendrogram constructed from the SL-IR sequences separated all of them into two main groups, one with the genotypes isolated from R. prolixus and the other group containing three well defined sub-groups with the genotypes isolated from R. pallescens, R. colombiensis and R. ecuadoriensis. Random amplified polymorphic DNA (RAPD) analysis showed the same two main groups and sub-groups supporting strict T. rangeli genotypes' association with Rhodnius species. Combined with other studies, these results suggest a possible co-evolutionary association between T. rangeli genotypes and their vectors.
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Affiliation(s)
- Daniel Alfonso Urrea
- Laboratorio de Investigaciones en Parasitología Tropical-LIPT, Universidad del Tolima, AA 546, Altos de Santa Helena, Ibagué, Colombia
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13
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Gräf T, Passaes CPB, Ferreira LGE, Grisard EC, Morgado MG, Bello G, Pinto AR. HIV-1 genetic diversity and drug resistance among treatment naïve patients from Southern Brazil: an association of HIV-1 subtypes with exposure categories. J Clin Virol 2011; 51:186-91. [PMID: 21622023 DOI: 10.1016/j.jcv.2011.04.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 04/13/2011] [Accepted: 04/25/2011] [Indexed: 11/16/2022]
Abstract
BACKGROUND The AIDS epidemic in Southern Brazil has unique features, showing co-circulation of HIV-1 subtypes C, B and recombinant forms. Florianópolis has the second highest AIDS incidence among Brazilian capitals, but limited information is available about HIV molecular epidemiology and prevalence of primary drug resistance. OBJECTIVES To investigate the molecular epidemiology of HIV-1 in Florianópolis and to describe the prevalence of primary HIV-1 drug resistance mutations (DMRs). STUDY DESIGN Epidemiological and clinical data from 82 untreated patients from Florianópolis (2008-2009) were analyzed. The HIV-1 subtype at envelope, protease, reverse transcriptase and integrase regions were determined by phylogenetic and bootscaning analyses and the drug resistance profile were analyzed at the Stanford HIV Drug Resistance Database. RESULTS The most frequent HIV-1 genetic form was subtype C (65.8%) followed by mosaics BC (18.3%), subtype B (13.4%), subtype F1 (1.2%) and BCF1 recombinant (1.2%). HIV-1 subtype C and BC recombinants were much more frequent in the heterosexual exposure category, whereas subtype B was more common in the MSM exposure category. DRMs were seen in 11% of the sequences, 2.4% of them were related to PI, 5% to NRTI, 3.6% to NNRTI and 1.2% was related to INTI. CONCLUSIONS The present study confirms the high prevalence of subtype C and BC recombinants in Santa Catarina State and revealed a significant difference in the subtype distribution among distinct virus exposure categories. This study also shows a relative high prevalence of protease/reverse transcriptase primary drug resistance mutations and corroborates the usefulness of the integrase inhibitors in southern Brazil.
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Affiliation(s)
- Tiago Gräf
- Departamento de Microbiologia, Imunologia e Parasitologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900 Florianópolis, SC, Brazil
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14
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Pedrosa FO, Monteiro RA, Wassem R, Cruz LM, Ayub RA, Colauto NB, Fernandez MA, Fungaro MHP, Grisard EC, Hungria M, Madeira HMF, Nodari RO, Osaku CA, Petzl-Erler ML, Terenzi H, Vieira LGE, Steffens MBR, Weiss VA, Pereira LFP, Almeida MIM, Alves LR, Marin A, Araujo LM, Balsanelli E, Baura VA, Chubatsu LS, Faoro H, Favetti A, Friedermann G, Glienke C, Karp S, Kava-Cordeiro V, Raittz RT, Ramos HJO, Ribeiro EMSF, Rigo LU, Rocha SN, Schwab S, Silva AG, Souza EM, Tadra-Sfeir MZ, Torres RA, Dabul ANG, Soares MAM, Gasques LS, Gimenes CCT, Valle JS, Ciferri RR, Correa LC, Murace NK, Pamphile JA, Patussi EV, Prioli AJ, Prioli SMA, Rocha CLMSC, Arantes OMN, Furlaneto MC, Godoy LP, Oliveira CEC, Satori D, Vilas-Boas LA, Watanabe MAE, Dambros BP, Guerra MP, Mathioni SM, Santos KL, Steindel M, Vernal J, Barcellos FG, Campo RJ, Chueire LMO, Nicolás MF, Pereira-Ferrari L, Silva JLDC, Gioppo NMR, Margarido VP, Menck-Soares MA, Pinto FGS, Simão RDCG, Takahashi EK, Yates MG, Souza EM. Genome of Herbaspirillum seropedicae strain SmR1, a specialized diazotrophic endophyte of tropical grasses. PLoS Genet 2011; 7:e1002064. [PMID: 21589895 PMCID: PMC3093359 DOI: 10.1371/journal.pgen.1002064] [Citation(s) in RCA: 160] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Accepted: 03/18/2011] [Indexed: 01/28/2023] Open
Abstract
The molecular mechanisms of plant recognition, colonization, and nutrient exchange between diazotrophic endophytes and plants are scarcely known. Herbaspirillum seropedicae is an endophytic bacterium capable of colonizing intercellular spaces of grasses such as rice and sugar cane. The genome of H. seropedicae strain SmR1 was sequenced and annotated by The Paraná State Genome Programme--GENOPAR. The genome is composed of a circular chromosome of 5,513,887 bp and contains a total of 4,804 genes. The genome sequence revealed that H. seropedicae is a highly versatile microorganism with capacity to metabolize a wide range of carbon and nitrogen sources and with possession of four distinct terminal oxidases. The genome contains a multitude of protein secretion systems, including type I, type II, type III, type V, and type VI secretion systems, and type IV pili, suggesting a high potential to interact with host plants. H. seropedicae is able to synthesize indole acetic acid as reflected by the four IAA biosynthetic pathways present. A gene coding for ACC deaminase, which may be involved in modulating the associated plant ethylene-signaling pathway, is also present. Genes for hemagglutinins/hemolysins/adhesins were found and may play a role in plant cell surface adhesion. These features may endow H. seropedicae with the ability to establish an endophytic life-style in a large number of plant species.
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15
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Seibert CH, Borsa M, Rosa RD, Cargnin-Ferreira E, Pereira AML, Grisard EC, Zanetti CR, Pinto AR. Detection of major capsid protein of infectious myonecrosis virus in shrimps using monoclonal antibodies. J Virol Methods 2010; 169:169-75. [PMID: 20678523 DOI: 10.1016/j.jviromet.2010.07.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Revised: 07/16/2010] [Accepted: 07/22/2010] [Indexed: 12/12/2022]
Abstract
Infectious myonecrosis virus (IMNV) has been causing a progressive disease in farm-reared shrimps in Brazil and Indonesia. Immunodiagnostic methods for IMNV detection, although reliable, are not employed currently because monoclonal antibodies (MAbs) against this virus are not available. In this study, a fragment of the IMNV major capsid protein gene, comprising amino acids 300-527 (IMNV(300-527)), was cloned and expressed in Escherichia coli. The nucleotide sequence of the recombinant IMNV(300-527) fragment displayed a high degree of identity to the major capsid protein of IMNV isolates from Brazil (99%) and Indonesia (98%). Ten MAbs were generated against the expressed fragment, and eight of these, mostly IgG(2a) or IgG(2b), were able to bind to IMNV in tissue extracts from shrimps infected naturally in immunodot-blot assays. Six of these MAbs recognized a approximately 100 kDa protein in a Western-blot, which is the predicted mass of IMNV major capsid protein, and also bound to viral inclusions present in muscle fibroses and in coagulative myonecrosis, as demonstrated by immunohistochemistry. Among all those MAbs created, four did not cross-react with non-infected shrimp tissues; this observation supports their applicability as a sensitive and specific immunodiagnosis of IMNV infection in shrimps.
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Affiliation(s)
- Caroline H Seibert
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-970, Florianópolis, SC, Brazil
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16
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Grisard EC, Stoco PH, Wagner G, Sincero TCM, Rotava G, Rodrigues JB, Snoeijer CQ, Koerich LB, Sperandio MM, Bayer-Santos E, Fragoso SP, Goldenberg S, Triana O, Vallejo GA, Tyler KM, Dávila AMR, Steindel M. Transcriptomic analyses of the avirulent protozoan parasite Trypanosoma rangeli. Mol Biochem Parasitol 2010; 174:18-25. [PMID: 20600354 DOI: 10.1016/j.molbiopara.2010.06.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 05/24/2010] [Accepted: 06/11/2010] [Indexed: 11/25/2022]
Abstract
Two species of the genus Trypanosoma infective to humans have been extensively studied at a cell and molecular level, but study of the third, Trypanosoma rangeli, remains in relative infancy. T. rangeli is non-pathogenic, but is frequently mistaken for the related Chagas disease agent Trypanosoma cruzi with which it shares vectors, hosts, significant antigenicity and a sympatric distribution over a wide geographical area. In this study, we present the T. rangeli gene expression profile as determined by the generation of ESTs (Expressed Sequence Tags) and ORESTES (Open Reading Frame ESTs). A total of 4208 unique high quality sequences were analyzed, composed from epimastigote and trypomastigote forms of SC-58 and Choachí strains, representing the two major phylogenetic lineages of this species. Comparative analyses with T. cruzi and other parasitic kinetoplastid species allowed the assignment of putative biological functions to most of the sequences generated and the establishment of an annotated T. rangeli gene expression database. Even though T. rangeli is apathogenic to mammals, genes associated with virulence in other pathogenic kinetoplastids were found. Transposable elements and genes associated mitochondrial gene expression, specifically RNA editing components, are also described for the first time. Our studies confirm the close phylogenetic relationship between T. cruzi and T. rangeli and enable us to make an estimate for the size of the T. rangeli genome repertoire ( approximately 8500 genes).
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Affiliation(s)
- Edmundo C Grisard
- Universidade Federal de Santa Catarina, Florianópolis 88040-970, SC, Brazil.
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17
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Puerta CJ, Sincero TCM, Stoco PH, Cuervo C, Grisard EC. Comparative analysis of Trypanosoma rangeli histone H2A gene intergenic region with distinct intraspecific lineage markers. Vector Borne Zoonotic Dis 2010; 9:449-56. [PMID: 19281435 DOI: 10.1089/vbz.2008.0017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study shows the characterization of the histone H2A intergenic region sequences (H2A IR) from Trypanosoma rangeli KP1(+) and KP1(-) strains isolated from distinct hosts and geographic regions. Also, a comparative unweighted pair-group method using arithmetic averages (UPMGA) analysis with polymerase chain reaction profiles of the 24Salpha rDNA and the miniexon genes was performed. Detailed H2A IR sequence analysis revealed a discrete size polymorphism among T. rangeli strains and the presence of single-nucleotide polymorphisms and minisatellite repeats, exclusively allowing an interspecific differentiation from T. cruzi strains representing the main parasite lineages. Differently from the H2A IR, UPMGA analysis of the 24Salpha rDNA and the miniexon genes profiles clearly branched T. rangeli strains into KP1(-) and KP1(+) lineages, clustering separately the Brazilian and Colombian KP1(-) strains. The evolutionary implications of these findings are discussed.
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Affiliation(s)
- Concepción J Puerta
- Laboratorio de Parasitología Molecular, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia.
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18
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Mattos JJ, Siebert MN, Luchmann KH, Granucci N, Dorrington T, Stoco PH, Grisard EC, Bainy ACD. Differential gene expression in Poecilia vivipara exposed to diesel oil water accommodated fraction. Mar Environ Res 2009; 69 Suppl:S31-S33. [PMID: 19963263 DOI: 10.1016/j.marenvres.2009.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2009] [Revised: 10/29/2009] [Accepted: 11/02/2009] [Indexed: 05/28/2023]
Abstract
Diesel fuel is a potential contaminant of estuarine and mangrove areas, particularly because it is the main fuel used in small boats and larger vessels. The aim of this work was to identify genes differentially expressed in the liver of Poecilia vivipara (Guppy) exposed to 10% diesel fuel water accommodated fraction (WAF), employing the subtractive suppressive hybridization (SSH) method. The results showed 27 differentially expressed gene fragments, 12 up-regulated and 15 down-regulated. Among the up-regulated genes were CYP1A, UDPGT1a, ABCC4, Methyltransferase and Apolipoprotein A1. Down-regulated genes included Vitellogenins, C1 Inhibitor and Complement Component 3c. The identified genes are associated with different metabolic functions like biotransformation, membrane transport and immune system, indicating the susceptibility and/or molecular responses of this organism to the toxic effects elicited by diesel fuel WSF.
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Marcondes CB, Bittencourt IA, Stoco PH, Eger I, Grisard EC, Steindel M. Natural infection of Nyssomyia neivai (Pinto, 1926) (Diptera: Psychodidae, Phlebotominae) by Leishmania (Viannia) spp. in Brazil. Trans R Soc Trop Med Hyg 2009; 103:1093-7. [DOI: 10.1016/j.trstmh.2008.12.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2007] [Revised: 12/04/2008] [Accepted: 12/04/2008] [Indexed: 11/16/2022] Open
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20
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Almeida CR, Stoco PH, Wagner G, Sincero TC, Rotava G, Bayer-Santos E, Rodrigues JB, Sperandio MM, Maia AA, Ojopi EP, Zaha A, Ferreira HB, Tyler KM, Dávila AM, Grisard EC, Dias-Neto E. Transcriptome analysis of Taenia solium cysticerci using Open Reading Frame ESTs (ORESTES). Parasit Vectors 2009; 2:35. [PMID: 19646239 PMCID: PMC2731055 DOI: 10.1186/1756-3305-2-35] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2009] [Accepted: 07/31/2009] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Human infection by the pork tapeworm Taenia solium affects more than 50 million people worldwide, particularly in underdeveloped and developing countries. Cysticercosis which arises from larval encystation can be life threatening and difficult to treat. Here, we investigate for the first time the transcriptome of the clinically relevant cysticerci larval form. RESULTS Using Expressed Sequence Tags (ESTs) produced by the ORESTES method, a total of 1,520 high quality ESTs were generated from 20 ORESTES cDNA mini-libraries and its analysis revealed fragments of genes with promising applications including 51 ESTs matching antigens previously described in other species, as well as 113 sequences representing proteins with potential extracellular localization, with obvious applications for immune-diagnosis or vaccine development. CONCLUSION The set of sequences described here will contribute to deciphering the expression profile of this important parasite and will be informative for the genome assembly and annotation, as well as for studies of intra- and inter-specific sequence variability. Genes of interest for developing new diagnostic and therapeutic tools are described and discussed.
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Affiliation(s)
- Carolina R Almeida
- Laboratórios de Protozoologia e de Bioinformática, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina (UFSC), Caixa postal 476, CEP 88040-970, Florianópolis, SC, Brazil.
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21
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Rona LDP, Carvalho-Pinto CJ, Gentile C, Grisard EC, Peixoto AA. Assessing the molecular divergence between Anopheles (Kerteszia) cruzii populations from Brazil using the timeless gene: further evidence of a species complex. Malar J 2009; 8:60. [PMID: 19358734 PMCID: PMC2673228 DOI: 10.1186/1475-2875-8-60] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Accepted: 04/09/2009] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Anopheles (Kerteszia) cruzii was the most important vector of human malaria in southern Brazil between 1930-1960. Nowadays it is still considered an important Plasmodium spp. vector in southern and south-eastern Brazil, incriminated for oligosymptomatic malaria. Previous studies based on the analysis of X chromosome banding patterns and inversion frequencies in An. cruzii populations from these areas have suggested the occurrence of three sibling species. In contrast, two genetically distinct groups among An. cruzii populations from south/south-east and north-east Brazil have been revealed by isoenzyme analysis. Therefore, An. cruzii remains unclear. METHODS In this study, a partial sequence of the timeless gene (approximately 400 bp), a locus involved in the control of circadian rhythms, was used as a molecular marker to assess the genetic differentiation between An. cruzii populations from six geographically distinct areas of Brazil. RESULTS The timeless gene revealed that An. cruzii from Itaparica Island, Bahia State (north-east Brazil), constitutes a highly differentiated group compared with the other five populations from south and south-east Brazil. In addition, significant genetic differences were also observed among some of the latter populations. CONCLUSION Analysis of the genetic differentiation in the timeless gene among An. cruzii populations from different areas of Brazil indicated that this malaria vector is a complex of at least two cryptic species. The data also suggest that further work might support the occurrence of other siblings within this complex in Brazil.
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Affiliation(s)
- Luísa DP Rona
- Laboratório de Biologia Molecular de Insetos, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Rio de Janeiro 21045-900, RJ, Brazil
| | - Carlos J Carvalho-Pinto
- Departamento de Microbiologia e Parasitologia, CCB, Universidade Federal de Santa Catarina, Florianópolis 88040-970, SC, Brazil
| | - Carla Gentile
- Laboratório de Biologia Molecular de Insetos, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Rio de Janeiro 21045-900, RJ, Brazil
- School of Biological and Chemical Sciences, Queen Mary University of London, 327 Mile End Road, London, E1 4NS, UK
| | - Edmundo C Grisard
- Departamento de Microbiologia e Parasitologia, CCB, Universidade Federal de Santa Catarina, Florianópolis 88040-970, SC, Brazil
| | - Alexandre A Peixoto
- Laboratório de Biologia Molecular de Insetos, Instituto Oswaldo Cruz, FIOCRUZ, Av. Brasil 4365, Rio de Janeiro 21045-900, RJ, Brazil
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22
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de Moraes MH, Guarneri AA, Girardi FP, Rodrigues JB, Eger I, Tyler KM, Steindel M, Grisard EC. Different serological cross-reactivity of Trypanosoma rangeli forms in Trypanosoma cruzi-infected patients sera. Parasit Vectors 2008; 1:20. [PMID: 18611261 PMCID: PMC2475519 DOI: 10.1186/1756-3305-1-20] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Accepted: 07/08/2008] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED BACKGROUND American Trypanosomiasis or Chagas disease is caused by Trypanosoma cruzi which currently infects approximately 16 million people in the Americas causing high morbidity and mortality. Diagnosis of American trypanosomiasis relies on serology, primarily using indirect immunofluorescence assay (IFA) with T. cruzi epimastigote forms. The closely related but nonpathogenic Trypanosoma rangeli has a sympatric distribution with T. cruzi and is carried by the same vectors. As a result false positives are frequently generated. This confounding factor leads to increased diagnostic test costs and where false positives are not caught, endangers human health due to the toxicity of the drugs used to treat Chagas disease. RESULTS In the present study, serologic cross-reactivity between the two species was compared for the currently used epimastigote form and the more pathologically relevant trypomastigote form, using IFA and immunoblotting (IB) assays. Our results reveal an important decrease in cross reactivity when T. rangeli culture-derived trypomastigotes are used in IFA based diagnosis of Chagas disease. Western blot results using sera from both acute and chronic chagasic patients presenting with cardiac, indeterminate or digestive disease revealed similar, but not identical, antigenic profiles. CONCLUSION This is the first study addressing the serological cross-reactivity between distinct forms and strains of T. rangeli and T. cruzi using sera from distinct phases of the Chagasic infection. Several T. rangeli-specific proteins were detected, which may have potential as diagnostic tools.
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Affiliation(s)
- Milene H de Moraes
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Alessandra A Guarneri
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
- Instituto René Rachou, Fiocruz, Belo Horizonte, Minas Gerais, Brazil
| | - Fabiana P Girardi
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Juliana B Rodrigues
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Iriane Eger
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
- Universidade do Vale do Itajaí, Itajaí, Santa Catarina, Brazil
| | - Kevin M Tyler
- Biomedical Research Centre, School of Medicine, Health Policy and Practice, University of East Anglia, Norwich, Norfolk, UK
| | - Mário Steindel
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
| | - Edmundo C Grisard
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, 88040-900, Florianópolis, Santa Catarina, Brazil
- Biomedical Research Centre, School of Medicine, Health Policy and Practice, University of East Anglia, Norwich, Norfolk, UK
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Pizzolatti MG, Mendes BG, Cunha Jr A, Soldi C, Koga AH, Eger I, Grisard EC, Steindel M. Trypanocidal activity of coumarins and styryl-2-pyrones from Polygala sabulosa A.W. Bennett (Polygalaceae). Rev bras farmacogn 2008. [DOI: 10.1590/s0102-695x2008000200006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Locateli D, Stoco PH, Zanetti CR, Pinto AR, Grisard EC. An optimized nested polymerase chain reaction (PCR) approach allows detection and characterization of human immunodeficiency virus type 1 (HIV-1) env and gag genes from clinical samples. J Clin Lab Anal 2008; 22:106-13. [PMID: 18348315 DOI: 10.1002/jcla.20229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The needs for development and/or improvement of molecular approaches for microorganism detection and characterization such as polymerase chain reaction (PCR) are of high interest due their sensitivity and specificity when compared to traditional microbiological techniques. Considering the worldwide importance of human immunodeficiency virus type 1 (HIV-1) infection, it is essential that such approaches consider the genetic variability of the virus, the heterogeneous nature of the clinical samples, the existence of contaminants and inhibitors, and the consequent needs for standardization in order to guarantee the reproducibility of the methods. In this work we describe a nested PCR assay targeting HIV-1 virus gag and env genes, allowing specific and sensitive diagnosis and further direct characterization of clinical samples. The method described herein was tested on clinical samples and allowed the detection of HIV-1 presence in all samples tested for the gag gene and 90.9% for the env gene, revealing sensitivities of 1 fg and 100 fg, respectively. Also, no cross-reactions were observed with DNA from infected and noninfected patients and the method allowed detection of the env and gag genes on an excess of 10(8) and 10(4) of human deoxyribonucleic acid (DNA), respectively. Furthermore, it was possible to direct sequence all amplified products, which allowed the sub typing of the virus in clinical samples.
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Affiliation(s)
- Dayse Locateli
- Laboratório de Imunologia Aplicada, Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
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Locateli D, Stoco PH, de Queiroz ATL, Alcântara LCJ, Ferreira LGE, Zanetti CR, Rodrigues R, Grisard EC, Pinto AR. Molecular epidemiology of HIV-1 in Santa Catarina State confirms increases of subtype C in Southern Brazil. J Med Virol 2007; 79:1455-63. [PMID: 17705166 DOI: 10.1002/jmv.20955] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Recent studies have demonstrated an increased prevalence of human immunodeficiency virus type 1 (HIV-1) subtype C in southern Brazil. Although Santa Catarina State (SC) is located in this area and presents one of the country's highest incidences of HIV/AIDS, knowledge on the molecular epidemiology of HIV-1 in such State is lacking. The aim of this study was to investigate the HIV-1 molecular diversity and epidemiological profile of HIV-1-infected patients from SC. DNA samples were PCR amplified and HIV-1 subtypes were determined using both env and gag genes by direct sequencing. Phylogenetic analyses revealed that 48% were subtype C and 23% were subtype B. Possible recombinant forms were observed for both B/C (23%) and B/F (6%) subtypes. Our results, for the first time, identifies HIV-1 subtype C as a major clade circulating in SC and contributes to the understanding of HIV epidemics in the country by confirming the epidemic spread of the HIV-1 subtype C in southern Brazil.
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Affiliation(s)
- Dayse Locateli
- Laboratório de Imunologia Aplicada, Departamento de Microbiologia e Parasitologia, UFSC, Florianópolis, SC, Brazil
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26
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Dávila AMR, Mendes PN, Wagner G, Tschoeke DA, Cuadrat RRC, Liberman F, Matos L, Satake T, Ocaña KACS, Triana O, Cruz SMS, Jucá HCL, Cury JC, Silva FN, Geronimo GA, Ruiz M, Ruback E, Silva FP, Probst CM, Grisard EC, Krieger MA, Goldenberg S, Cavalcanti MCR, Moraes MO, Campos MLM, Mattoso M. ProtozoaDB: dynamic visualization and exploration of protozoan genomes. Nucleic Acids Res 2007; 36:D547-52. [PMID: 17981844 PMCID: PMC2238986 DOI: 10.1093/nar/gkm820] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
ProtozoaDB (http://www.biowebdb.org/protozoadb) is being developed to initially host both genomics and post-genomics data from Plasmodium falciparum, Entamoeba histolytica, Trypanosoma brucei, T. cruzi and Leishmania major, but will hopefully host other protozoan species as more genomes are sequenced. It is based on the Genomics Unified Schema and offers a modern Web-based interface for user-friendly data visualization and exploration. This database is not intended to duplicate other similar efforts such as GeneDB, PlasmoDB, TcruziDB or even TDRtargets, but to be complementary by providing further analyses with emphasis on distant similarities (HMM-based) and phylogeny-based annotations including orthology analysis. ProtozoaDB will be progressively linked to the above-mentioned databases, focusing in performing a multi-source dynamic combination of information through advanced interoperable Web tools such as Web services. Also, to provide Web services will allow third-party software to retrieve and use data from ProtozoaDB in automated pipelines (workflows) or other interoperable Web technologies, promoting better information reuse and integration. We also expect ProtozoaDB to catalyze the development of local and regional bioinformatics capabilities (research and training), and therefore promote/enhance scientific advancement in developing countries.
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Affiliation(s)
- Alberto M R Dávila
- Oswaldo Cruz Institute, FIOCRUZ, CCB, Federal University of Santa Catarina (UFSC), ACBS/UNOESC/SC, COPPE, Federal University of Rio de Janeiro, Brazil.
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27
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Santos A, Ribeiro JMC, Lehane MJ, Gontijo NF, Veloso AB, Sant'Anna MR, Araujo RN, Grisard EC, Pereira MH. The sialotranscriptome of the blood-sucking bug Triatoma brasiliensis (Hemiptera, Triatominae). Insect Biochem Mol Biol 2007; 37:702-12. [PMID: 17550826 PMCID: PMC1896098 DOI: 10.1016/j.ibmb.2007.04.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2007] [Revised: 03/27/2007] [Accepted: 04/01/2007] [Indexed: 05/09/2023]
Abstract
Triatoma brasiliensis is the most important autochthon vector of Trypanosoma cruzi in Brazil, where it is widely distributed in the semiarid areas of the Northeast. In order to advance the knowledge of the salivary biomolecules of Triatominae, a salivary gland cDNA library of T. brasiliensis was mass sequenced and analyzed. Polypeptides were sequenced by HPLC/Edman degradation experiments. Then 1712 cDNA sequences were obtained and grouped in 786 clusters. The housekeeping category had 24.4% and 17.8% of the clusters and sequences, respectively. The putatively secreted category contained 47.1% of the clusters and 68.2% of the sequences. Finally, 28.5% of the clusters, containing 14% of all sequences, were classified as unknown. The sialoma of T. brasiliensis showed a high amount and great variety of different lipocalins (93.8% of secreted proteins). Remarkably, a great number of serine proteases that were not observed in previous blood-sucking sialotranscriptomes were found. Nine Kazal peptides were identified, among them one with high homology to the tabanid vasodilator vasotab, suggesting that the Triatoma vasodilator could be a Kazal protein.
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Affiliation(s)
- Adriana Santos
- Laboratório de Fisiologia de Insetos Hematófagos, Departamento de Parasitologia/ICB, Universidade Federal de Minas Gerais – Caixa Postal 486, 31270-901, Belo Horizonte, MG, Brazil
| | - José Marcos C. Ribeiro
- Section of Vector Biology, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 12735 Twinbrook Parkway, Room 2E32D, Rockville, MD 20852, USA
| | - Michael J. Lehane
- Liverpool School of Tropical Medicine, Pembrok Place, Liverpool, L3 5QA, United Kingdom
| | - Nelder Figueiredo Gontijo
- Laboratório de Fisiologia de Insetos Hematófagos, Departamento de Parasitologia/ICB, Universidade Federal de Minas Gerais – Caixa Postal 486, 31270-901, Belo Horizonte, MG, Brazil
| | - Artur Botelho Veloso
- Laboratório de Fisiologia de Insetos Hematófagos, Departamento de Parasitologia/ICB, Universidade Federal de Minas Gerais – Caixa Postal 486, 31270-901, Belo Horizonte, MG, Brazil
| | | | - Ricardo Nascimento Araujo
- Laboratório de Fisiologia de Insetos Hematófagos, Departamento de Parasitologia/ICB, Universidade Federal de Minas Gerais – Caixa Postal 486, 31270-901, Belo Horizonte, MG, Brazil
| | - Edmundo C. Grisard
- Laboratório de Protozoologia, MIP, CCB, Universidade Federal de Santa Catarina, Caixa postal 476, 88040-900, Florianópolis, SC, Brazil
| | - Marcos Horácio Pereira
- Laboratório de Fisiologia de Insetos Hematófagos, Departamento de Parasitologia/ICB, Universidade Federal de Minas Gerais – Caixa Postal 486, 31270-901, Belo Horizonte, MG, Brazil
- Corresponding author. Tel.:+55 31 3499-2835, fax: +55 31 3499-2970. E-mail address:
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da Rosa ES, Kotait I, Barbosa TF, Carrieri ML, Brandão PE, Pinheiro AS, Begot AL, Wada MY, de Oliveira RC, Grisard EC, Ferreira M, Lima RJDS, Montebello L, Medeiros DB, Sousa RC, Bensabath G, Carmo EH, Vasconcelos PF. Bat-transmitted human rabies outbreaks, Brazilian Amazon. Emerg Infect Dis 2006. [PMID: 16965697 PMCID: PMC3291204 DOI: 10.3201/1208.050929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We describe 2 bat-transmitted outbreaks in remote, rural areas of Portel and Viseu Municipalities, Pará State, northern Brazil. Central nervous system specimens were taken after patients' deaths and underwent immunofluorescent assay and histopathologic examination for rabies antigens; also, specimens were injected intracerebrally into suckling mice in an attempt to isolate the virus. Strains obtained were antigenically and genetically characterized. Twenty-one persons died due to paralytic rabies in the 2 municipalities. Ten rabies virus strains were isolated from human specimens; 2 other cases were diagnosed by histopathologic examination. Isolates were antigenically characterized as Desmodus rotundus variant 3 (AgV3). DNA sequencing of 6 strains showed that they were genetically close to D. rotundus–related strains isolated in Brazil. The genetic results were similar to those obtained by using monoclonal antibodies and support the conclusion that the isolates studied belong to the same rabies cycle, the virus variants found in the vampire bat D. rotundus.
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da Rosa ES, Kotait I, Barbosa TF, Carrieri ML, Brandão PE, Pinheiro AS, Begot AL, Wada MY, de Oliveira RC, Grisard EC, Ferreira M, Lima RJDS, Montebello L, Medeiros DB, Sousa RC, Bensabath G, Carmo EH, Vasconcelos PF. Bat-transmitted human rabies outbreaks, Brazilian Amazon. Emerg Infect Dis 2006; 12:1197-202. [PMID: 16965697 PMCID: PMC3291204 DOI: 10.3201/eid1208.050929] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We describe 2 bat-transmitted outbreaks in remote, rural areas of Portel and Viseu Municipalities, Pará State, northern Brazil. Central nervous system specimens were taken after patients' deaths and underwent immunofluorescent assay and histopathologic examination for rabies antigens; also, specimens were injected intracerebrally into suckling mice in an attempt to isolate the virus. Strains obtained were antigenically and genetically characterized. Twenty-one persons died due to paralytic rabies in the 2 municipalities. Ten rabies virus strains were isolated from human specimens; 2 other cases were diagnosed by histopathologic examination. Isolates were antigenically characterized as Desmodus rotundus variant 3 (AgV3). DNA sequencing of 6 strains showed that they were genetically close to D. rotundus-related strains isolated in Brazil. The genetic results were similar to those obtained by using monoclonal antibodies and support the conclusion that the isolates studied belong to the same rabies cycle, the virus variants found in the vampire bat D. rotundus.
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Bordignon J, Grisard EC, Zanetti CR. Molecular detection and characterization of rabies virus in Brazil: New approaches for epidemiology and surveillance. VR&R 2005. [DOI: 10.17525/vrrjournal.v10i1.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Dávila AMR, Lorenzini DM, Mendes PN, Satake TS, Sousa GR, Campos LM, Mazzoni CJ, Wagner G, Pires PF, Grisard EC, Cavalcanti MCR, Campos MLM. GARSA: genomic analysis resources for sequence annotation. Bioinformatics 2005; 21:4302-3. [PMID: 16210424 DOI: 10.1093/bioinformatics/bti705] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
SUMMARY Growth of genome data and analysis possibilities have brought new levels of difficulty for scientists to understand, integrate and deal with all this ever-increasing information. In this scenario, GARSA has been conceived aiming to facilitate the tasks of integrating, analyzing and presenting genomic information from several bioinformatics tools and genomic databases, in a flexible way. GARSA is a user-friendly web-based system designed to analyze genomic data in the context of a pipeline. EST and GGS data can be analyzed using the system since it accepts (1) chromatograms, (2) download of sequences from GenBank, (3) Fasta files stored locally or (4) a combination of all three. Quality evaluation of chromatograms, vector removing and clusterization are easily performed as part of the pipeline. A number of local and customizable Blast and CDD analyses can be performed as well as Interpro, complemented with phylogeny analyses. GARSA is being used for the analyses of Trypanosoma vivax (GSS and EST), Trypanosoma rangeli (GSS, EST and ORESTES), Bothrops jararaca (EST), Piaractus mesopotamicus (EST) and Lutzomyia longipalpis (EST). AVAILABILITY The GARSA system is freely available under GPL license (http://www.biowebdb.org/garsa/). For download requests visit http://www.biowebdb.org/garsa/ or contact Dr Alberto Dávila.
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Vasconcelos ATR, Ferreira HB, Bizarro CV, Bonatto SL, Carvalho MO, Pinto PM, Almeida DF, Almeida LGP, Almeida R, Alves-Filho L, Assunção EN, Azevedo VAC, Bogo MR, Brigido MM, Brocchi M, Burity HA, Camargo AA, Camargo SS, Carepo MS, Carraro DM, de Mattos Cascardo JC, Castro LA, Cavalcanti G, Chemale G, Collevatti RG, Cunha CW, Dallagiovanna B, Dambrós BP, Dellagostin OA, Falcão C, Fantinatti-Garboggini F, Felipe MSS, Fiorentin L, Franco GR, Freitas NSA, Frías D, Grangeiro TB, Grisard EC, Guimarães CT, Hungria M, Jardim SN, Krieger MA, Laurino JP, Lima LFA, Lopes MI, Loreto ELS, Madeira HMF, Manfio GP, Maranhão AQ, Martinkovics CT, Medeiros SRB, Moreira MAM, Neiva M, Ramalho-Neto CE, Nicolás MF, Oliveira SC, Paixão RFC, Pedrosa FO, Pena SDJ, Pereira M, Pereira-Ferrari L, Piffer I, Pinto LS, Potrich DP, Salim ACM, Santos FR, Schmitt R, Schneider MPC, Schrank A, Schrank IS, Schuck AF, Seuanez HN, Silva DW, Silva R, Silva SC, Soares CMA, Souza KRL, Souza RC, Staats CC, Steffens MBR, Teixeira SMR, Urmenyi TP, Vainstein MH, Zuccherato LW, Simpson AJG, Zaha A. Swine and poultry pathogens: the complete genome sequences of two strains of Mycoplasma hyopneumoniae and a strain of Mycoplasma synoviae. J Bacteriol 2005; 187:5568-77. [PMID: 16077101 PMCID: PMC1196056 DOI: 10.1128/jb.187.16.5568-5577.2005] [Citation(s) in RCA: 221] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2005] [Accepted: 05/19/2005] [Indexed: 11/20/2022] Open
Abstract
This work reports the results of analyses of three complete mycoplasma genomes, a pathogenic (7448) and a nonpathogenic (J) strain of the swine pathogen Mycoplasma hyopneumoniae and a strain of the avian pathogen Mycoplasma synoviae; the genome sizes of the three strains were 920,079 bp, 897,405 bp, and 799,476 bp, respectively. These genomes were compared with other sequenced mycoplasma genomes reported in the literature to examine several aspects of mycoplasma evolution. Strain-specific regions, including integrative and conjugal elements, and genome rearrangements and alterations in adhesin sequences were observed in the M. hyopneumoniae strains, and all of these were potentially related to pathogenicity. Genomic comparisons revealed that reduction in genome size implied loss of redundant metabolic pathways, with maintenance of alternative routes in different species. Horizontal gene transfer was consistently observed between M. synoviae and Mycoplasma gallisepticum. Our analyses indicated a likely transfer event of hemagglutinin-coding DNA sequences from M. gallisepticum to M. synoviae.
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Affiliation(s)
- Ana Tereza R Vasconcelos
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves 9500, Prédio 43421, Porto Alegre, RS, Brazil
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Guerreiro LTA, Souza SS, Wagner G, De Souza EA, Mendes PN, Campos LM, Barros L, Pires PF, Campos MLM, Grisard EC, Dávila AMR. Exploring the Genome of Trypanosoma vivax through GSS and In Silico Comparative Analysis. OMICS: A Journal of Integrative Biology 2005; 9:116-28. [PMID: 15805782 DOI: 10.1089/omi.2005.9.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A survey of the Trypanosoma vivax genome was carried out by the genome sequence survey (GSS) approach resulting in 1,086 genomic sequences. A total of 455 high-quality GSS sequences were generated, consisting of 331 non-redundant sequences distributed in 264 singlets and 67 clusters in a total of 135.5 Kb of the T. vivax genome. The estimation of the overall G+C content, and the prediction of the presence of ORFs and putative genes were carried out using the Glimmer and Jemboss packages. Analysis of the obtained sequences was carried out by BLAST programs against 12 different databases and also using the Conserved Domain Database, InterProScan, and tRNAscan-SE. Along with the existing 23 T. vivax entries in the GenBank, the 32 putative genes predicted and the 331 non-redundant GSS sequences reported herein represent new potential markers for the development of PCRbased assays for specific diagnosis and typing of Trypanosoma vivax.
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Affiliation(s)
- Luana Tatiana A Guerreiro
- Departamento de Bioquímica e Biologia Molecular, Instituto Oswaldo Cruz/Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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Dávila AMR, Steindel M, Grisard EC. Tropical diseases, pathogens, and vectors biodiversity in developing countries: need for development of genomics and bioinformatics approaches. Ann N Y Acad Sci 2005; 1026:41-6. [PMID: 15604468 DOI: 10.1196/annals.1307.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The world's biodiversity, including many infectious, parasitic disease agents and their vectors whose impact on both human and animal health is significant, is largely retained in the developing countries of the tropics. Owing to the number of species involved and the relatively low-level exploration of pathogens and vectors biodiversity, several organisms are still waiting to be discovered and consequently explored in terms of genomics. Although some parasitic species of humans and animals have been studied through genomics and bioinformatics approaches, a significant number of relevant species are still to be addressed. Through the use of modern technologies, such as genomics and bioinformatics, for assessment of biodiversity and targeting tropical diseases, other relevant advantages of these initiatives for developing countries would be technology transfer and capacity building. Consequently, these initiatives could be critical to the development of the respective countries. Moreover, intra- and interhemispheric scientific collaboration should be encouraged and supported to increase the chances for success. In Brazil, the Ministry of Science and Technology has stepped forward to further such initiatives, co-supporting collaborative genomics and bioinformatics projects. The need for the establishment of working groups on genomics and bioinformatics in developing countries as well as the improvement and strengthening of collaborative research projects between developed and developing countries is discussed from our point of view. As these discussions remain open to debate, we encourage colleagues to promote further discussion on the subject.
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Affiliation(s)
- Alberto M R Dávila
- DBBM, Instituto Oswaldo Cruz, Fiocruz. Av. Brasil 4365, Rio de Janeiro, RJ, CEP 21045-900, Brazil.
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Beltrame-Botelho IT, Gaspar-Silva D, Steindel M, Dávila AMR, Grisard EC. Internal transcribed spacers (ITS) of Trypanosoma rangeli ribosomal DNA (rDNA): a useful marker for inter-specific differentiation. Infection, Genetics and Evolution 2005; 5:17-28. [PMID: 15567135 DOI: 10.1016/j.meegid.2004.05.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2003] [Revised: 05/19/2004] [Accepted: 05/26/2004] [Indexed: 10/26/2022]
Abstract
The internal transcribed spacers (ITS) flanking the 5.8S subunit of the ribosomal RNA genes (rDNA) of Trypanosoma rangeli strains isolated from distinct geographical regions and hosts were studied. The results revealed the sequence variability of the ITS spacers showing the presence of microsatellite repeats and single nucleotide polymorphisms (SNP), which were also observed within the 5.8S rDNA sequence. ITS-2 spacer was the most phylogenetically informative region due the presence of a higher number of parsimonious sites in both inter- and intra-specific analysis. Sequence analysis of both ITS spacers plus the 5.8S rDNA of T. rangeli strains allowed a clear inter-specific differentiation from Trypanosoma cruzi strains representative of the parasite zymodemes.
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Affiliation(s)
- I T Beltrame-Botelho
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Caixa Postal 476, 88040-900, Florianópolis, SC, Brazil
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Bordignon J, Brasil-Dos-Anjos G, Bueno CR, Salvatiera-Oporto J, Dávila AMR, Grisard EC, Zanetti CR. Detection and characterization of rabies virus in Southern Brazil by PCR amplification and sequencing of the nucleoprotein gene. Arch Virol 2004; 150:695-708. [PMID: 15614435 DOI: 10.1007/s00705-004-0448-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2004] [Accepted: 10/13/2004] [Indexed: 10/26/2022]
Abstract
Due to the medical and socio-economical importance of both human and animal rabies infection, several studies have suggested the use of molecular techniques such as RT-PCR and DNA sequencing for diagnosis and phylogenetic studies of the rabies virus. Considering the conservancy of the nucleoprotein (N) gene of the virus, we herein describe a RT-PCR assay for rabies diagnosis and characterization. A total of 75 samples obtained from a variety of animal species in the state of Santa Catarina (SC), Southern Brazil, were comparatively studied by fluorescence antibody test (FAT), mouse inoculation test (MIT), cell infection assay and RT-PCR, which revealed itself to be as sensitive as FAT and MIT and less time-consuming than MIT. Direct sequencing of the 5' end of the N gene allowed the clustering of the SC samples with samples from the vampire bat-related or sylvatic cycle through comparative sequence analysis.
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Affiliation(s)
- J Bordignon
- Departamento de Microbiologia, Imunologia e Parasitologia da Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Dávila AM, Majiwa PA, Grisard EC, Aksoy S, Hide W. Response to Hertz-Fowler and Berriman: Continuing tsetse and Trypanosoma genome sequencing projects. Trends Parasitol 2004. [DOI: 10.1016/j.pt.2004.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bianchin MM, Capella HM, Chaves DL, Steindel M, Grisard EC, Ganev GG, da Silva Júnior JP, Neto Evaldo S, Poffo MA, Walz R, Carlotti Júnior CG, Sakamoto AC. Nasu-Hakola disease (polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy--PLOSL): a dementia associated with bone cystic lesions. From clinical to genetic and molecular aspects. Cell Mol Neurobiol 2004; 24:1-24. [PMID: 15049507 DOI: 10.1023/b:cemn.0000012721.08168.ee] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The authors review the clinical, radiological, electrophysiological, pathological, and molecular aspects of Nasu-Hakola disease (polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy or PLOSL). Nasu-Hakola disease is a unique disease characterized by multiple bone cysts associated with a peculiar form of neurodegeneration that leads to dementia and precocious death usually during the fifth decade of life. The diagnosis can be established on the basis of clinical and radiological findings. Recently, molecular analysis of affected families revealed mutations in the DAP12 (TYROBP) or TREM2 genes, providing an interesting example how mutations in two different subunits of a multi-subunit receptor complex result in an identical human disease phenotype. The association of PLOSL with mutations in the DAP12 or TREM2 genes has led to improved diagnosis of affected individuals. Also, the possible roles of the DAP12/TREM2 signaling pathway in microglia and osteoclasts in humans are just beginning to be elucidated. Some aspects of this peculiar signaling pathway are discussed here.
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Affiliation(s)
- Marino Muxfeldt Bianchin
- CIREP, Department of Neurology, Psychiatry and Medical Psychology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Dávila AMR, Majiwa PAO, Grisard EC, Aksoy S, Melville SE. Comparative genomics to uncover the secrets of tsetse and livestock-infective trypanosomes. Trends Parasitol 2004; 19:436-9. [PMID: 14519579 DOI: 10.1016/s1471-4922(03)00196-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Alberto M R Dávila
- Departamento de Bioquímica e Biologia Molecular, Instituto Oswaldo Cruz, Fiocruz, Av. Brasil 4365, Rio de Janeiro, RJ 21045-900, Brazil.
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Portela LVC, Tort ABL, Walz R, Bianchin M, Trevisol-Bittencourt PC, Wille PR, Cardoso RC, Ishida MMI, vonWangenheim A, Grisard EC, Steindel M, Gonçalves CA, Souza DO. Interictal serum S100B levels in chronic neurocysticercosis and idiopathic epilepsy. Acta Neurol Scand 2003; 108:424-7. [PMID: 14616295 DOI: 10.1034/j.1600-0404.2003.00159.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To assess whether serum S100B levels could reflect a glial response in patients with epilepsy secondary to neurocysticercosis (NCC) and with idiopathic epilepsy. SUBJECTS AND METHODS Serum S100B levels were measured using an immunoluminometric assay in 20 patients with focal epilepsy related to chronic NCC (NCC group), and 19 patients with focal epilepsy (EPI group), matched by epidemiological and clinical data. Epileptic patients were compared with 20 healthy controls (CON group) matched by age and sex. RESULTS No difference was observed in S100B levels among NCC, EPI and CON groups (P>0.39). Serum S100B levels were not affected by antiepileptic drugs, frequency and type of seizures. Preliminarily, significantly higher levels of S100B were observed in patients with bilateral electroencephalographic (EEG) findings than in patients with unilateral and normal EEG findings (P<0.05). CONCLUSION Serum S100B is normal in patients with focal epilepsy related or not to chronic NCC.
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Affiliation(s)
- L V C Portela
- Departamento de Bioquímica, ICBS, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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Abstract
Trypanosomes isolated from South American bats include the human pathogen Trypanosoma cruzi. Other Trypanosoma spp. that have been found exclusively in bats are not well characterized at the DNA sequence level and we have therefore used the SL RNA gene to differentiate and characterize kinetoplastids isolated from bats in South America. A Trypanosoma sp. isolated from hats in southern Brazil was compared with the geographically diverse isolates T. cruzi marinkellei, T. vespertilionis, and T. dionisii. Analysis of the SL RNA gene repeats revealed size and sequence variability among these bat trypanosomes. We have developed hybridization probes to separate these bat isolates and have analysed the DNA sequence data to estimate their relatedness. A new species, Trypanosoma desterrensis sp. n., is proposed, for which a 5S rRNA gene was also found within the SL RNA repeat.
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Affiliation(s)
- E C Grisard
- Department of Microbiology, Immunology and Molecular Genetics, UCLA School of Medicine, Los Angeles, CA 90095-1747, USA.
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Dubey JP, Sreekumar C, Rosenthal BM, Lindsay DS, Grisard EC, Vitor RWA. Biological and molecular characterization of Besnoitia akodoni n.sp. (Protozoa: Apicomplexa) from the rodent Akodon montensis in Brazil. Parassitologia 2003; 45:61-70. [PMID: 15266998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
The diversity among coccidian parasites of the genus Besnoitia is incompletely known. Of the eight currently described members of the genus, only B. jellisoni is known to parasitize a rodent host. Here, we propose a new name, Besnoitia akodoni, for the species initially isolated form the rodent Akodon montensis in Brazil. The tissue cysts of B. akodoni were up to 442 microm in diameter and bradyzoites were 8.4 x 1.4 microm in size. The bradyzoites contained enigmatic bodies, micronemes and rhoptries. Tachyzoites were 5.8 x 1.5 microm in size and they could be grown in vitro in bovine monocytes and African Green monkey cells where they divided by endodyogeny. Besnoitia akodoni was infective to laboratory-raised mice (Mus musculus) and gerbils (Meriones unguiculatus) but not to cats (Felis catus). Comparison of the conserved sequences of the small subunit rDNA clearly established the close relationship of B. akodoni with other members of the genus. However, sequences of the more variable first internal transcribed spacer portion of the ribosomal DNA repeat support its differentiation from the other species of the genus.
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Affiliation(s)
- J P Dubey
- United United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal and Natural Resources Institute, Animal Parasitic Diseases Laboratory, Beltsville, MD 20705-2350, USA.
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Lunardi F, Guzela M, Rodrigues AT, Corrêa R, Eger-Mangrich I, Steindel M, Grisard EC, Assreuy J, Calixto JB, Santos ARS. Trypanocidal and leishmanicidal properties of substitution-containing chalcones. Antimicrob Agents Chemother 2003; 47:1449-51. [PMID: 12654691 PMCID: PMC152493 DOI: 10.1128/aac.47.4.1449-1451.2003] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2002] [Revised: 07/02/2002] [Accepted: 01/03/2003] [Indexed: 11/20/2022] Open
Abstract
Ten chalcones were synthesized and tested as potential leishmanicidal and trypanocidal agents. All tested compounds caused concentration-dependent inhibition of the in vitro growth of Leishmania braziliensis and Trypanosoma cruzi with no significant toxic effect towards host macrophages. Our results show that the positions of the substituents seem to be critical for their antiprotozoal activities.
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Affiliation(s)
- Fabiane Lunardi
- Faculdade de Farmácia, Centro de Ciências da Saúde, Universidade do Vale do Itajaí Departamento de Microbiologia e Parasitologia, Florianópolis, Santa Catarina, Brazil
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Pizzolatti MG, Koga AH, Grisard EC, Steindel M. Trypanocidal activity of extracts from Brazilian Atlantic Rain Forest plant species. Phytomedicine 2003; 10:422-426. [PMID: 12834008 DOI: 10.1078/0944-7113-00252] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The trypanocidal activity of crude hydro alcoholic extracts and several fractions of 13 plants from Brazilian Atlantic Rain Forest were tested in vitro against epimastigote and trypomastigote forms of Trypanosoma cruzi, the etiological agent of Chagas disease. Crude ethanol extracts with promising in vitro activity (DL50 between 5-10 microg/ml) against epimastigotes were fractionated by solvent partition and further tested against bloodstream form of the parasite. Activity against bloodstream parasites was observed in both dichloromethane and hexane fractions of Polygala sabulosa and P. paniculata.
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Affiliation(s)
- M G Pizzolatti
- Department de Química, Laboratório de Química de Produtos Naturais, Florianópolis, SC, Brazil.
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45
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Abstract
The taxonomic status of Trypanosoma rangeli as well as the tools for its molecular characterization is briefly commented.
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Affiliation(s)
- Edmundo C Grisard
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Caixa, Postal 476, 88040-900 Florianópolis, SC, Brasil.
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Emmanuelle-Machado P, Koerich LB, Joukoski DDB, Carvalho-Pinto CJ, Grisard EC, Steindel M. Biology of Triatoma klugi Carcavallo, Jurberg, Lent & Galvão 2001 (Heteroptera: Reduviidae) under laboratory conditions: effects of distinct blood sources and susceptibility to Trypanosoma cruzi and Trypanosoma rangeli. Mem Inst Oswaldo Cruz 2002; 97:583-7. [PMID: 12118296 DOI: 10.1590/s0074-02762002000400025] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The life cycle of Triatoma klugi Carcavallo, Jurberg, Lent & Galvão 2001 was compared under laboratory conditions using two groups of the F1 generation obtained from field-collected bugs. Among the 100 nymphs weekly fed on mice (Group A) or chicken (Group B), 77% of Group A and 67% of Group B reached the adult stage, and the mean time from the first nymphal stage to adult was 190.08 +/- 28.31 days and 221.23 +/- 40.50, respectively. The average span in days for each stage per group and the number of blood meals required for each stage were also evaluated. The overall mortality rate was 23% and 33% for Groups A and B, respectively. The mean number of eggs laid per month in a three-month period was of 56.20, 51.70 and 73.20 for Group A, and 64.50, 53.50 and 38.71 for Group B. Despite the blood source, comparative analysis revealed no statistically significant differences in the life cycle of T. klugi under laboratory conditions. Infection rates over 60% were observed for both Trypanosoma cruzi strains tested. Even revealing high infection rates of the hemolymph by T. rangeli strains, T. klugi revealed no salivary gland infections and was not able to transmit the parasite.
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Affiliation(s)
- Priscilla Emmanuelle-Machado
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-900, Brasil
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Noireau F, Abad-Franch F, Valente SAS, Dias-Lima A, Lopes CM, Cunha V, Valente VC, Palomeque FS, de Carvalho-Pinto CJ, Sherlock I, Aguilar M, Steindel M, Grisard EC, Jurberg J. Trapping Triatominae in silvatic habitats. Mem Inst Oswaldo Cruz 2002; 97:61-3. [PMID: 11992149 DOI: 10.1590/s0074-02762002000100009] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Large-scale trials of a trapping system designed to collect silvatic Triatominae are reported. Live-baited adhesive traps were tested in various ecosystems and different triatomine habitats (arboreal and terrestrial). The trials were always successful, with a rate of positive habitats generally over 20% and reaching 48.4% for palm trees of the Amazon basin. Eleven species of Triatominae belonging to the three genera of public health importance (Triatoma, Rhodnius and Panstrongylus) were captured. This trapping system provides an effective way to detect the presence of triatomines in terrestrial and arboreal silvatic habitats and represents a promising tool for ecological studies. Various lines of research are contemplated to improve the performance of this trapping system.
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Affiliation(s)
- François Noireau
- Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos, Departamento de Entomologia, Instituto Oswaldo Cruz-Fiocruz, Av. Brasil 4365, 21045-900 Rio de Janeiro, RJ, Brasil.
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Koerich LB, Emmanuelle-Machado P, Santos K, Grisard EC, Steindel M. Differentiation of Trypanosoma rangeli: high production of infective Trypomastigote forms in vitro. Parasitol Res 2002; 88:21-5. [PMID: 11822733 DOI: 10.1007/s004360100501] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In the present study, we report a simple method to induce high Trypanosoma rangeli differentiation in vitro, producing a large number of infective trypomastigote forms. Parasites from SC-58 (Brazil) and Choachi (Colombia) strains were cultivated at 27 degrees C in TC-100, Grace and DMEM media, each supplemented with 5% fetal bovine serum and prepared at three distinct pHs (6.0, 7.0, 8.0). Differentiation was microscopically evaluated at 0, 3 and 6 days after cultivation in each medium by determining the percentage of trypomastigotes in Giemsa-stained smears. Our data revealed similar results for both T. rangeli strains, showing (after 6 days of cultivation in DMEM medium, pH 8.0) the presence of about 80% of trypomastigotes. These culture-derived trypomastigotes proved to be infective to both Balb-C mice and Rhodnius spp, reaching the triatomine's salivary glands. Our results describe a new and easy method to induce high T. rangeli differentiation in vitro, allowing further studies on the antigenic constitution of trypomastigotes.
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Affiliation(s)
- Leonardo Barbosa Koerich
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Eger-Mangrich I, de Oliveira MA, Grisard EC, De Souza W, Steindel M. Interaction of Trypanosoma rangeli Tejera, 1920 with different cell lines in vitro. Parasitol Res 2001; 87:505-9. [PMID: 11411954 DOI: 10.1007/s004360000356] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Intracellular multiplication of Trypanosoma rangeli was evaluated in vitro using experimental infection of Vero cells, murine macrophages, and promonocytes with T. rangeli Choachi, Macias, and SC-58 clone B1 strains. Our results revealed a low infectivity of all T. rangeli strains to these cell lines. Macrophages showed the highest infection rate; however, intracellular forms were no longer observed 48 h post infection Despite the observation of intracellular parasites up to 144 h post infection, the infection rates of Vero cells and J774G.8 promonocytes with these parasite strains were always below 5%. Pre-incubation of parasites with normal mouse serum increased the initial infectivity but not the time course of the infection. Under our experimental conditions, we did not observe any evidence of intracellular multiplication of T. rangeli within these cell lines.
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Affiliation(s)
- I Eger-Mangrich
- Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Brazil
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Machado PE, Eger-Mangrich I, Rosa G, Koerich LB, Grisard EC, Steindel M. Differential susceptibility of triatomines of the genus Rhodnius to Trypanosoma rangeli strains from different geographical origins. Int J Parasitol 2001; 31:632-4. [PMID: 11334954 DOI: 10.1016/s0020-7519(01)00150-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The susceptibility of four Rhodnius species to different Trypanosoma rangeli strains was evaluated using both intracoelomic inoculation and oral infection. Rhodnius prolixus, Rhodnius domesticus, Rhodnius neglectus and Rhodnius nasutus were infected with Trypanosoma rangeli Macias (Venezuela), Choachi (Colombia) and SC-58 (Brazil) strains, revealing distinct haemolymph and salivary glands infection rates. The obtained infection rates were revealed to be dependent on the method of infection and the triatomine species. Our results suggest the existence of a high adaptation between the strain and the local vector.
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Affiliation(s)
- P E Machado
- Departamento de Microbiologia, Imunologia e Parasitologia Universidade Federal de Santa Catarina, Caixa Postal 476, 88040-900, Florianópolis, Santa Catarina, Brazil
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