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de Oliveira LA, de Morais IRB, Barbosa MDS, Beutinger Marchioro S, Leite Machado LOC, Ferreira Marques M, da Silva Ferreira T, de Almeida GB, de Oliveira Barbosa D, Leite Torres AJ, Simionatto S. Immune Response to an Inactivated Vaccine of SARS-CoV-2 (CoronaVac) in an Indigenous Brazilian Population: A Cohort Study. Vaccines (Basel) 2024; 12:402. [PMID: 38675784 DOI: 10.3390/vaccines12040402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/07/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024] Open
Abstract
INTRODUCTION Although the adaptive immune responses to the CoronaVac vaccine are known, their dynamics in indigenous communities remain unclear. In this study, we assessed the humoral and cellular immune responses to CoronaVac (Sinovac Biotech Life Sciences, 2021 NCT05225285, Beijing, China), in immunized Brazilian indigenous individuals. METHODS We conducted a prospective cohort study on indigenous Brazilian people between February 2021 and June 2021. Analyses of immune responses were carried out before (T1) and after a vaccination schedule was completed (T2). Demographic data were collected using a questionnaire. RESULTS We initially included 328 patients; among them, 120 (36.6%) had no SARS-CoV-2 antibodies. Peripheral blood mononuclear cells (PBMCs) were collected from 106 patients during follow-up visits, of which 91 samples were analyzed by immunophenotyping assay to detect SARS-CoV-2-specific memory T-cell response. Post-vaccination, the levels of memory B-cells and Natural Killer T-lymphocytes increased. Bororó village residents, females, and Terena ethnic group members had higher levels of anti-spike IgG antibodies post-vaccination, whereas alcohol and tobacco users had lower concentrations. CONCLUSIONS To our best knowledge, this was the first comprehensive assessment of antibody and T-cell responses against CoronaVac vaccination in indigenous patients. Our findings showed that antibody response and T-cell immunity against SARS-CoV-2 were present in most patients following the vaccination schedule.
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Affiliation(s)
| | - Isa Rita Brito de Morais
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador 40170-110, BA, Brazil
| | - Marcelo Dos Santos Barbosa
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, MS, Brazil
| | - Silvana Beutinger Marchioro
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador 40170-110, BA, Brazil
| | | | - Michele Ferreira Marques
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, MS, Brazil
| | - Tiago da Silva Ferreira
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, MS, Brazil
| | - Gabriel Barroso de Almeida
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador 40170-110, BA, Brazil
| | - Dyjaene de Oliveira Barbosa
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador 40170-110, BA, Brazil
| | - Alex José Leite Torres
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador 40170-110, BA, Brazil
| | - Simone Simionatto
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, MS, Brazil
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de Oliveira LA, dos Santos Barbosa M, Leite Torres AJ, Croda MG, Oliveira da Silva B, dos Santos PCP, Rossoni R, Machado LOCL, Croda J, Maymone Gonçalves CC, Marques MF, da Silva Ferreira T, Sardi SI, Campos GS, de Almeida GB, Alves Gomes MM, Marchioro SB, Simionatto S. Seroprevalence Of SARS-COV-2 infection in asymptomatic indigenous from the largest Brazilian periurban area. PLoS One 2023; 18:e0295211. [PMID: 38134187 PMCID: PMC10745159 DOI: 10.1371/journal.pone.0295211] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/15/2023] [Indexed: 12/24/2023] Open
Abstract
This study assessed the seroprevalence of SARS-CoV-2 in 496 asymptomatic individuals from Mato Grosso do Sul, located in Dourados, the largest periurban indigenous area in Brazil, from January 25 to February 4, 2021. The volunteers participated before receiving their first dose of the CoronaVac inactivated vaccine. For screening, blood samples were collected and analyzed using SARS-CoV-2 rapid tests and the enzyme-linked immunosorbent assay (ELISA). We observed varying trends in total anti-SARS-CoV-2 antibodies across different variables. Seropositivity among the participants tested was 63.70% (316/496) using the rapid test and 52.82% (262/496) were positive using the ELISA method. The majority of participants identified with the Guarani-Kaiowá ethnic group, with 66.15% (217/328), and other ethnic groups with 58.84% (193/328). The median age of the subjects was 30.5 years, with 79.57% (261/328) being femaleThis research showed the elevated seroprevalence of SARS-CoV-2 antibodies in asymptomatic Brazilians. The findings indicate a high seropositivity rate among the asymptomatic indigenous population of Midwest Brazil. This underscores the overlooked status of these communities and underscores the need for targeted national initiatives that emphasize the protection of vulnerable ethnic groups in the fight against COVID-19.
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Affiliation(s)
| | - Marcelo dos Santos Barbosa
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Alex José Leite Torres
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Mariana Garcia Croda
- School of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Bruna Oliveira da Silva
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | | | - Regina Rossoni
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | | | - Julio Croda
- School of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
- Oswaldo Cruz Foundation, Campo Grande, Mato Grosso do Sul, Brazil
| | - Crhistinne Cavalheiro Maymone Gonçalves
- School of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
- State Secretariat of Health of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Michele Ferreira Marques
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Tiago da Silva Ferreira
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Silvia Inês Sardi
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Gubio Soares Campos
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Gabriel Barroso de Almeida
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Marilia Maria Alves Gomes
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Silvana Beutinger Marchioro
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Simone Simionatto
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
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de Oliveira LA, de Rezende IM, Navarini VJ, Marchioro SB, Torres AJL, Croda J, Croda MG, Gonçalves CCM, Xavier J, de Castro E, Lima M, Iani F, Adelino T, Aburjaile F, Ferraz Demarchi LH, Taira DL, Zardin MCSU, Fonseca V, Giovanetti M, Andrews J, Alcantara LCJ, Simionatto S. Genomic characterization of SARS-CoV-2 from an indigenous reserve in Mato Grosso do Sul, Brazil. Front Public Health 2023; 11:1195779. [PMID: 37965526 PMCID: PMC10641392 DOI: 10.3389/fpubh.2023.1195779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 09/04/2023] [Indexed: 11/16/2023] Open
Abstract
Background The COVID-19 pandemic had a major impact on indigenous populations. Understanding the viral dynamics within this population is essential to create targeted protection measures. Methods A total of 204 SARS-CoV-2 positive samples collected between May 2020 and November 2021 from an indigenous area in Mato Grosso do Sul (MS), Midwestern Brazil, were screened. Samples were submitted to whole genome sequencing using the Nanopore sequencing platform. Clinical, demographic, and phylogenetic data were analyzed. Results We found the co-circulation of six main SARS-CoV-2 lineages in the indigenous population, with the Zeta lineage being the most prevalent (27.66%), followed by B.1.1 (an ancestral strain) (20.21%), Gamma (14.36%) and Delta (13.83%). Other lineages represent 45.74% of the total. Our phylogenetic reconstruction indicates that multiple introduction events of different SARS-CoV-2 lineages occurred in the indigenous villages in MS. The estimated indigenous population mortality rate was 1.47%. Regarding the ethnicity of our cohort, 64.82% belong to the Guarani ethnicity, while 33.16% belong to the Terena ethnicity, with a slightly higher prevalence of males (53.43%) among females. Other ethnicities represent 2.01%. We also observed that almost all patients (89.55%) presented signs and symptoms related to COVID-19, being the most prevalent cough, fever, sore throat, and headache. Discussion Our results revealed that multiple independent SARS-CoV-2 introduction events had occurred through time, probably due to indigenous mobility, since the villages studied here are close to urban areas in MS. The mortality rate was slightly below of the estimation for the state in the period studied, which we believe could be related to the small number of samples evaluated, the underreporting of cases and deaths among this population, and the inconsistency of secondary data available for this study. Conclusion In this study, we showed the circulation of multiple SARS-CoV-2 variants in this population, which should be isolated and protected as they belong to the most fragile group due to their socioeconomic and cultural disparities. We reinforce the need for constant genomic surveillance to monitor and prevent the spread of new emerging viruses and to better understand the viral dynamics in these populations, making it possible to direct specific actions.
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Affiliation(s)
- Laís Albuquerque de Oliveira
- Health Sciences Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Izabela Mauricio de Rezende
- Stanford Pandemic Preparedness Hub, Department of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Vinicius João Navarini
- Health Sciences Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
| | - Silvana Beutinger Marchioro
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Alex José Leite Torres
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Julio Croda
- Oswaldo Cruz Foundation, Campo Grande, Mato Grosso do Sul, Brazil
- Faculdade de Medicina (FAMED), Universidade Federal do Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Mariana Garcia Croda
- Faculdade de Medicina (FAMED), Universidade Federal do Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Crhistinne Cavalheiro Maymone Gonçalves
- School of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
- State Secretariat of Health of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Joilson Xavier
- Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Emerson de Castro
- Ezequiel Dias Foundation (FUNED), Belo Horizonte, Minas Gerais, Brazil
| | - Mauricio Lima
- Ezequiel Dias Foundation (FUNED), Belo Horizonte, Minas Gerais, Brazil
| | - Felipe Iani
- Ezequiel Dias Foundation (FUNED), Belo Horizonte, Minas Gerais, Brazil
| | - Talita Adelino
- Ezequiel Dias Foundation (FUNED), Belo Horizonte, Minas Gerais, Brazil
| | - Flávia Aburjaile
- Preventive Veterinary Medicine Departament, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Deborah Ledesma Taira
- State Secretariat of Health of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | | | - Vagner Fonseca
- Pan American Health Organization - PAHO, Brasília, Distrito Federal, Brazil
| | - Marta Giovanetti
- Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
- Sciences and Technologies for Sustainable Development and One Health, Università Campus Bio-Medico di Roma, Rome, Italy
- Climate-Amplified Diseases and Epidemics (CLIMADE) Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jason Andrews
- Stanford Pandemic Preparedness Hub, Department of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Luiz Carlos Junior Alcantara
- Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
- Climate-Amplified Diseases and Epidemics (CLIMADE) Rio de Janeiro, Rio de Janeiro, Brazil
| | - Simone Simionatto
- Health Sciences Research Laboratory, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil
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de Morais IRB, Barbosa DDO, de Almeida GB, da Costa RR, da Silva BO, de Oliveira LA, Arantes JP, Leite LOC, Rossato L, Ribeiro MB, Marchioro SB, Freire SM, Nascimento RJM, Simionatto S, Torres AJL. Determining reference ranges for immunological cells of healthy indigenous individuals from a region in Brazil. Einstein (Sao Paulo) 2023; 21:eAO0291. [PMID: 37878969 PMCID: PMC10567104 DOI: 10.31744/einstein_journal/2023ao0291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 04/16/2023] [Indexed: 10/27/2023] Open
Abstract
Morais et al. conducted a pioneering study with Brazilian indigenous populations to determine reference values for immunologic cells from healthy adult individuals. The main findings included a higher relative median for T lymphocyte subsets in females than males, and T CD3+, T CD4+, and T CD8+ relative values were statistically different when compared with Brazilian populations from other Brazilian regions. The relative medians of CD3+, CD4+, and CD8+ T cells were significantly higher in women than in men in a healthy indigenous population. Demographic and ethnic diversity of the Brazilian population can be associated with quantitative modifications in the immunologic cells of healthy individuals. OBJECTIVE The establishment of reference values for a subset of leukocytes is common in clinical practice, and ethnic variations are strongly associated with disease development. In Brazil, indigenous people are vulnerable to infections, and few studies have described the health and disease conditions of this population. This study aimed to provide reference values for immunological cell subsets in indigenous Brazilians living in the state of Mato Grosso do Sul. METHODS Flow cytometry and 4-color combinations of monoclonal antibodies were used to characterize cells. A total of 115 healthy adults, mostly females (72%), were included in the study. The results are presented as mean and median (2.5%-97.5% percentiles) for T and B lymphocytes, CD4+ T cells, CD8+ T cells, Natural Killer cells, monocytes, and dendritic cells, providing an average immunological profile for the population in question. RESULTS The relative medians of CD3+, CD4+, and CD8+ T cells were significantly higher in women than in men in a healthy indigenous population. CONCLUSION To our knowledge, cell reference data from indigenous Brazilians are unknown in the literature. The immune cell results presented in this pioneering study will contribute to the clinical and laboratory evaluation of the Brazilian indigenous population, especially given the important differences when compared with other Brazilian ethnic groups.
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Affiliation(s)
- Isa Rita Brito de Morais
- Universidade Federal da BahiaSalvadorBABrazil Universidade Federal da Bahia , Salvador , BA , Brazil .
| | | | | | - Regina Rossoni da Costa
- Universidade Federal da Grande DouradosDouradosMSBrazil Universidade Federal da Grande Dourados , Dourados , MS , Brazil .
| | - Bruna Oliveira da Silva
- Universidade Federal da Grande DouradosDouradosMSBrazil Universidade Federal da Grande Dourados , Dourados , MS , Brazil .
| | - Laís Albuquerque de Oliveira
- Universidade Federal da Grande DouradosDouradosMSBrazil Universidade Federal da Grande Dourados , Dourados , MS , Brazil .
| | - Julia Pimentel Arantes
- Universidade Federal da Grande DouradosDouradosMSBrazil Universidade Federal da Grande Dourados , Dourados , MS , Brazil .
| | - Layla Oliveira Campos Leite
- Universidade Federal da Grande DouradosDouradosMSBrazil Universidade Federal da Grande Dourados , Dourados , MS , Brazil .
| | - Luana Rossato
- Universidade Federal da Grande DouradosDouradosMSBrazil Universidade Federal da Grande Dourados , Dourados , MS , Brazil .
| | - Marcos Borges Ribeiro
- Universidade Federal da BahiaSalvadorBABrazil Universidade Federal da Bahia , Salvador , BA , Brazil .
| | | | - Songelí Menezes Freire
- Universidade Federal da BahiaSalvadorBABrazil Universidade Federal da Bahia , Salvador , BA , Brazil .
| | | | - Simone Simionatto
- Universidade Federal da BahiaSalvadorBABrazil Universidade Federal da Bahia , Salvador , BA , Brazil .
| | - Alex José Leite Torres
- Universidade Federal da BahiaSalvadorBABrazil Universidade Federal da Bahia , Salvador , BA , Brazil .
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Ribeiro Mota Souza R, Campos GS, Hughes Carvalho R, Brandão Peixoto I, Santos Galante R, Santana Moreira L, Beutinger Marchioro S, José Meyer Nascimento R, Sardi SI. Production and Characterization of Two Specific ZIKV Antigens Based on Bioinformatic Analysis and Serological Screening. Immunol Invest 2023:1-13. [PMID: 37036441 DOI: 10.1080/08820139.2023.2195432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
BACKGROUND The high structural similarity between the Zika virus (ZIKV) and other flaviviruses, such as Dengue Virus (DENV), complicates the identification of the infecting virus due to the occurrence of cross-reactions in serological assays. This phenomenon has increased the demand for more specific antigens for immunodiagnostic applications. METHODS The present work aimed to identify specific regions of ZIKV and produce unique antigens through computational methods, molecular and microbiological techniques. RESULTS Based on the computational analysis we successfully expressed two recombinant proteins derived from specific regions of the ZIKV. Through serological assays using characterized sera, we observed that the region 146-182 of ZIKV's E protein, expressed in tandem, was not reactive despite the predictive sensitivity and specificity observed by computer analyses. On the other hand, the non-denatured fraction 220-352 of ZIKV's NS1 showed greater specificity to IgG+ sera of ZIKV by dot blot and western blot, which highlights its properties as a possible tool in the diagnosis of ZIKV. CONCLUSION These findings demonstrate that ZIKV NS1 fraction 220-352 is a potential tool that may be applied in the development of serological diagnosis. We also provided data that suggest the non-applicability of the region 146-182 of ZIKV's protein E in serological assays despite previous indications about its potential based on computational analysis.
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Affiliation(s)
- Rafael Ribeiro Mota Souza
- Virology Laboratory, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Gubio Soares Campos
- Virology Laboratory, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Rejane Hughes Carvalho
- Virology Laboratory, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Isabela Brandão Peixoto
- Virology Laboratory, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Rafaela Santos Galante
- Virology Laboratory, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Luan Santana Moreira
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Silvana Beutinger Marchioro
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Roberto José Meyer Nascimento
- Laboratory of Immunology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Silvia Ines Sardi
- Virology Laboratory, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
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de Sá Queiroz JHF, dos Santos Barbosa M, Miranda LGO, de Oliveira NR, Dellagostin OA, Marchioro SB, Simionatto S. Tp0684, Tp0750, and Tp0792 Recombinant Proteins as Antigens for the Serodiagnosis of Syphilis. Indian J Microbiol 2022; 62:419-427. [PMID: 35974924 PMCID: PMC9375814 DOI: 10.1007/s12088-022-01017-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/20/2022] [Indexed: 11/28/2022] Open
Abstract
The incidence of syphilis has increased alarmingly over the years. Its diagnosis continues to be a challenge, leading to the search for new alternative and effective methods. The objective of this study was to select and evaluate three Treponema pallidum recombinant proteins for potential use in syphilis serodiagnosis. Bioinformatics analysis was performed with three T. pallidum antigens (Tp0684, Tp0750, and Tp0792) to assess their physical, antigenic, and structural characteristics. The antigens were chemically synthesized, recombinant plasmids were expressed in Escherichia coli BL21 Star™ (DE3), and the recombinant proteins were purified by nickel affinity chromatography. The antigenicity of the recombinant proteins was evaluated by western blotting and enzyme-linked immunosorbent assay (ELISA), using the sera from patients with primary and latent syphilis. In silico analysis indicated the antigenic potential once the exposed B cell epitopes were detected in the evaluated proteins. Sera from patients with primary and latent syphilis specifically recognized rTp0684, rTp0750, and rTp0792 recombinant antigens. Moreover, the rTp0684-ELISA receiver operating characteristic (ROC) analysis showed an area under the ROC curve of 0.99, indicating high diagnostic efficacy with 97.62% specificity and 95% sensitivity. In conclusion, rTp0684 showed better potential as an antigen for the development of syphilis serodiagnosis. Thus, bioinformatic analysis can be an important tool to guide the selection of antigens for serological diagnosis. Supplementary Information The online version contains supplementary material available at 10.1007/s12088-022-01017-w.
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Affiliation(s)
- Júlio Henrique Ferreira de Sá Queiroz
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados - UFGD, Rodovia Dourados - Itahum, km 12, Cidade Universitária, Dourados, MS 79804970 Brazil
| | - Marcelo dos Santos Barbosa
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados - UFGD, Rodovia Dourados - Itahum, km 12, Cidade Universitária, Dourados, MS 79804970 Brazil
| | - Lais Gonçalves Ortolani Miranda
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados - UFGD, Rodovia Dourados - Itahum, km 12, Cidade Universitária, Dourados, MS 79804970 Brazil
| | | | | | - Silvana Beutinger Marchioro
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados - UFGD, Rodovia Dourados - Itahum, km 12, Cidade Universitária, Dourados, MS 79804970 Brazil
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA Brazil
| | - Simone Simionatto
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados - UFGD, Rodovia Dourados - Itahum, km 12, Cidade Universitária, Dourados, MS 79804970 Brazil
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Simionatto S, Marchioro SB, dos Santos Barbosa M, Galli V, Brum CB, Jorge S, Dellagostin OA. Development of ELISA Using Recombinant Proteins for the Diagnosis of Mycoplasma hyopneumoniae Infection. Indian J Microbiol 2022; 62:88-95. [PMID: 35068608 PMCID: PMC8758847 DOI: 10.1007/s12088-021-00981-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/02/2021] [Indexed: 01/19/2023] Open
Abstract
In order to develop a more sensitive and reliable method for detection of serum antibodies against Mycoplasma hyopneumoniae infection in pigs, six recombinant proteins of M. hyopneumoniae (P102, P95, P46, P97 like, Lppt, and hypothetical P987) were used for the standardization of an indirect enzyme-linked immunosorbent assay (ELISA). The proteins were evaluated against 50 sera of the specific pathogen-free and 50 sera of pigs with lesions suggestive of infection. The sensitivity was 88%, 86%, 78%, 74%, 66%, and 60% for the proteins P102, P95, P46, P97 like, Lppt, and hypothetical protein P987, respectively. Moreover, the proteins were used to establish the seroprevalence in two different commercial herds (254 sera pigs from farm considered free of M. hyopneumoniae and 246 from farm with clinical signs of enzootic pneumonia and positive serology for M. hyopneumoniae) and the positive rate was 65.2% for P95, 54.6% for P102, 40.2% for P46, 37.2% for P97 like, 17.4% for the hypothetical P987, and 14% for Lppt protein. In addition, the ELISA with six recombinant proteins was compared to commercial HerdCheck kit using 118 random pig sera samples and the results showed that ELISA with recombinant proteins were more sensitive than the commercial test. These data show that the recombinant proteins P95 and P102 are potential targets to be used in diagnostic tests to detect antibodies against M. hyopneumoniae. Although more studies are necessary, this study provides insights that these recombinant proteins can be useful in epidemiological investigations and as potential biomarkers in differentiating infected animals from those vaccinated.
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Affiliation(s)
- Simone Simionatto
- grid.412335.20000 0004 0388 2432Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, MS Brazil
| | - Silvana Beutinger Marchioro
- grid.412335.20000 0004 0388 2432Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, MS Brazil ,grid.8399.b0000 0004 0372 8259Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA Brazil
| | - Marcelo dos Santos Barbosa
- grid.412335.20000 0004 0388 2432Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, MS Brazil
| | - Vanessa Galli
- grid.411221.50000 0001 2134 6519Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS Brazil
| | - Clarice Brink Brum
- grid.411221.50000 0001 2134 6519Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS Brazil ,grid.411221.50000 0001 2134 6519Programa de Pós Graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas, RS Brazil
| | - Sergio Jorge
- grid.411221.50000 0001 2134 6519Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS Brazil
| | - Odir Antonio Dellagostin
- grid.411221.50000 0001 2134 6519Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS Brazil
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Croda MG, Barbosa MDS, Marchioro SB, Nascimento DDGD, Melo ECP, Cruz OG, Torres AJL, Oliveira LAD, Ganem F, Simionatto S. The first year of the COVID-19 pandemic in an indigenous population in Brazil: an epidemiological study. Rev Inst Med Trop Sao Paulo 2022; 64:e69. [DOI: 10.1590/s1678-9946202264069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
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Queiroz JHFDS, Correa ME, Ferreira TDS, Marques MF, Barbosa MDS, Marchioro SB, Simionatto S. Detection of Treponema pallidum in whole blood samples of patients with syphilis by the polymerase chain reaction. Rev Inst Med Trop Sao Paulo 2022; 64:e75. [DOI: 10.1590/s1678-9946202264075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
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de Sá MCA, da Silva WM, Rodrigues CCS, Rezende CP, Marchioro SB, Rocha Filho JTR, Sousa TDJ, de Oliveira HP, da Costa MM, Figueiredo HCP, Portela RD, Castro TLDP, Azevedo V, Seyffert N, Meyer R. Comparative Proteomic Analyses Between Biofilm-Forming and Non-biofilm-Forming Strains of Co rynebacterium pseudotuberculosis Isolated From Goats. Front Vet Sci 2021; 8:614011. [PMID: 33665217 PMCID: PMC7921313 DOI: 10.3389/fvets.2021.614011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 01/21/2021] [Indexed: 11/20/2022] Open
Abstract
Caseous lymphadenitis (CLA) is a chronic disease that affects small ruminants and causes economic losses in the associated breeding system. The causative agent of CLA is Corynebacterium pseudotuberculosis, a Gram-positive bacterium that exhibits tropism for external and internal lymph nodes and induces abscess formation in the host. Bacterial communities often produce a biofilm matrix that serves various functions, including protection against hostile environmental conditions, antibiotics, and the host immune response. Although biofilm formation has been reported for C. pseudotuberculosis, not all strains demonstrate this property in culture. In this work, we report the first comparative proteomic analysis of one biofilm-forming (CAPJ4) and one biofilm-non-forming strain (CAP3W) of C. pseudotuberculosis isolated from goats. Bacterial whole cell protein extracts were obtained for mass spectrometry analyses. Using LC-MS/MS, our studies reveal three and four proteins exclusively found in the CAPJ4 and CAP3W proteome, respectively. In addition, label-free quantitative analysis identified 40 proteins showing at-least 2-fold higher values in CAPJ4 compared CAP3W proteome Notably, CAPJ4 differentially synthesized the penicillin-binding protein, which participates in the formation of peptidoglycans. CAPJ4 also exhibited upregulation of N-acetylmuramoyl-L-alanine amidase and galactose-1-phosphate uridylyltransferase, which are involved in biofilm formation and exopolysaccharide biosynthesis. Here, we demonstrate that biofilm formation in C. pseudotuberculosis is likely associated with specific proteins, some of which were previously shown to be associated with virulence and biofilm formation in other organisms. Our findings may drive studies related to the bacterial mechanisms involved in the biofilm formation, in addition to providing targets for the treatment of CLA.
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Affiliation(s)
| | - Wanderson Marques da Silva
- Instituto de Agrobiotecnología y Biologia Molecular Instituto Nacional de Tecnología Agropecuária/Consejo Nacional de Investigaciones Científicas y Técnicas (IABIMO-INTA/CONICET), Buenos Aires, Argentina
| | | | | | | | | | - Thiago de Jesus Sousa
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | | | | | - Vasco Azevedo
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Nubia Seyffert
- Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Roberto Meyer
- Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
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Galvão FDO, Dantas FGDS, Santos CRDL, Marchioro SB, Cardoso CAL, Wender H, Sangalli A, Almeida-Apolonio AAD, Oliveira KMPD. Cochlospermum regium (Schrank) pilger leaf extract inhibit methicillin-resistant Staphylococcus aureus biofilm formation. J Ethnopharmacol 2020; 261:113167. [PMID: 32730885 DOI: 10.1016/j.jep.2020.113167] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cochlospermum regium, known as "algodãozinho", is an important plant belonging to Brazilian biodiversity used in traditional medicine to treat infections, wounds and skin conditions. AIM OF THE STUDY To assess the effects of aqueous and ethanolic extracts from C. regium leaves on methicillin-resistant Staphylococcus aureus planktonic cells and biofilm formation. MATERIAL AND METHODS The phytochemical characterization of the extracts was carried out by quantification of flavonoids, phenols and tannins and HPLC-DAD. Minimum inhibitory concentrations, cell viability, and enzyme activity inhibition were determined in planktonic cells exposed to C. regium extracts. The effect of the extracts on biofilms was assessed by quantifying colony-forming units (CFUs) and the extracellular matrix, and by visualizing the biofilm structure using scanning electron microscopy. RESULTS Leaf extract contents showed high concentration of phenols and the gallic and ellagic acids were identified. The extracts showed potent antimicrobial activities at concentrations ranging from 62.5-250 μg/mL, and decreased coagulase activity. In addition, the extracts prevented biofilm formation, and the aqueous extract completely inhibited its formation. CONCLUSIONS C. regium extracts stand out as promising alternative treatments for the prevention and treatment of methicillin-resistant Staphylococcus aureus infections.
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Affiliation(s)
- Fernanda de Oliveira Galvão
- Faculdade de Ciências da Saúde, Universidade Federal da Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, Brazil
| | - Fabiana Gomes da Silva Dantas
- Faculdade de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, Brazil
| | | | - Silvana Beutinger Marchioro
- Faculdade de Ciências da Saúde, Universidade Federal da Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, Brazil
| | - Claudia Andrea Lima Cardoso
- Departamento de Química, Universidade Estadual de Mato Grosso Do Sul (UEMS), Dourados, Mato Grosso do Sul, Brazil
| | - Heberton Wender
- Instituto de Física, Universidade Federal Do Mato Grosso Do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brazil
| | - Andréia Sangalli
- Faculdade Intercultural Indígena, Universidade Federal da Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, Brazil
| | | | - Kelly Mari Pires de Oliveira
- Faculdade de Ciências da Saúde, Universidade Federal da Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, Brazil; Faculdade de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados (UFGD), Dourados, Mato Grosso do Sul, Brazil.
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Farias APFD, Rocha Filho JTR, Marchioro SB, Moreira LS, Marques AS, Sá MDCAD, Oliveira AADS, Alcântara ME, Mariutti RB, Arni RK, Trindade SC, Meyer R. rSodC is a potential antigen to diagnose Corynebacterium pseudotuberculosis by enzyme-linked immunoassay. AMB Express 2020; 10:186. [PMID: 33074348 PMCID: PMC7570411 DOI: 10.1186/s13568-020-01125-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/10/2020] [Indexed: 12/03/2022] Open
Abstract
Caseous lymphadenitis (CL) is a chronic infectious disease that affects sheep and goats. Many serological tests have been developed to detect the disease; one of the most widely used is the enzyme-linked immunosorbent assay (ELISA), due to its advantages, which include acceptable cost-effectiveness, applicability, sensitivity and specificity. ELISA formulations using recombinant proteins can exhibit significant sensitivity and specificity when using a single purified antigen. DTxR, Trx, TrxR, LexA, SodC, SpaC, NanH, and PknG recombinant proteins can be considered target proteins for ELISA development due to its extracellular or on the cell surface location, which allows a better recognition by the immune system. Therefore, the objectives of this study were to evaluate the antigenic reactivity of Corynebacterium pseudotuberculosis recombinant proteins in goat and sheep serum. Of eight proteins evaluated, rSodC was selected for validation assays with small ruminant serum samples from the semiarid region of the state of Bahia, Brazil. Validation assays with goat serum samples showed that ELISA-rSodC presented sensitivity and specificity of 96% and 94%, respectively. Validation assays with sheep serum showed that ELISA-rSodC exhibited sensitivity and specificity of 95% and 98%, respectively. Analysis of 756 field serum samples showed that rSodC identified 95 positive samples (23%) in goats and 75 positive samples (21%) in sheep. The ELISA with recombinant SodC protein developed in this study discriminated positive and negative serum samples with high levels of sensitivity and specificity. This formulation is promising for epidemiological surveys and CL control programs. Trial registration AEC No 4958051018. 12/18/2018, retrospectively registered
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Barbosa MDS, Andrade de Souza IB, Schnaufer ECDS, da Silva LF, Maymone Gonçalves CC, Simionatto S, Marchioro SB. Prevalence and factors associated with Trichomonas vaginalis infection in indigenous Brazilian women. PLoS One 2020; 15:e0240323. [PMID: 33064733 PMCID: PMC7567381 DOI: 10.1371/journal.pone.0240323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 09/23/2020] [Indexed: 11/23/2022] Open
Abstract
There is a scarcity of studies on the prevalence of Trichomonas vaginalis (TV) in indigenous populations of Brazil. We conducted a cross-sectional study between January and December 2018, on indigenous women living nearby an urban center of the Midwest region of Brazil and determined the prevalence of TV. Factors associated with TV infection and a comparison of molecular and direct microscopy diagnoses were determined. 241 indigenous women aged above 18 years participated in the study. Cervical and vaginal brush samples were collected to diagnose TV through polymerase chain reaction (PCR). Direct microscopy for detection of TV, and cellular changes was performed. A sociodemographic and behavioral questionnaire was applied at the beginning of the study. All the data were analyzed using Statistical Package for the Social Sciences. The result obtained showed that 27.8% [95% CI: 22.2-33.9] were positive for TV on PCR, while 7.41% [95% CI: 4.1-11] showed positive on direct microscopy. Direct microcopy also found 21 (8.71%) and 8 (3.31%) women infected with Gardnerella vaginalis and Candida albicans, respectively. In addition, 10 women presented atypical squamous cells of unknown significance and 14 lesions suggestive of HPV. Single women, under the age of 30 and who do not use condoms, were found to have a greater chance of getting TV infection. The high prevalence TV found in this population is comparable to highly vulnerable populations, as prisoners, sex workers and women in regions with low socioeconomic levels, moreover, seems to be an underdiagnosis of this infection. Therefore, a routine test program, as well as a review of the diagnostic method used, is encouraged for proper management.
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Affiliation(s)
- Marcelo dos Santos Barbosa
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados—UFGD, Dourados, MS, Brazil
| | | | | | | | | | - Simone Simionatto
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados—UFGD, Dourados, MS, Brazil
| | - Silvana Beutinger Marchioro
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados—UFGD, Dourados, MS, Brazil
- Laboratório de Imunologia e Biologia Molecular, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, BA, Brazil
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Simionatto S, Barbosa M, Marchioro SB. COVID-19 in Brazilian indigenous people: a new threat to old problems. Rev Soc Bras Med Trop 2020; 53:e20200476. [PMID: 32876317 PMCID: PMC7451499 DOI: 10.1590/0037-8682-0476-2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 07/29/2020] [Indexed: 11/22/2022] Open
Affiliation(s)
- Simone Simionatto
- Programa de Pós Graduação Strictu Sensu em Ciências da Saúde, Universidade Federal de Grande Dourados, Dourados, MS, Brasil
| | - Marcelo Barbosa
- Programa de Pós Graduação Strictu Sensu em Ciências da Saúde, Universidade Federal de Grande Dourados, Dourados, MS, Brasil
| | - Silvana Beutinger Marchioro
- Programa de Pós Graduação Strictu Sensu em Ciências da Saúde, Universidade Federal de Grande Dourados, Dourados, MS, Brasil
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Sousa IBAD, Souza C, Barbosa MDS, Croda JHR, Gonçalves CCM, Bernardes SS, Marchioro SB. Gestational outcomes in women infected by Zika virus during pregnancy in Mato Grosso do Sul, Brazil: A cross-sectional study. Int J Infect Dis 2020; 98:359-365. [PMID: 32619757 DOI: 10.1016/j.ijid.2020.06.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES This study aimed to describe the demographic and clinical parameters of women infected by Zika virus who had infants with stigmata of Congenital Zika Syndrome (CZS) versus those who had normal-appearing infants at birth, thereby providing further details on the clinical caveats of neonatal ZIKV infection. METHODOLOGY This cross-sectional study was performed in the state of Mato Grosso do Sul, Central-West region of Brazil, and included 117 mother-infant pairs who were interviewed and 120 gestational outcomes. All mothers had laboratory confirmation by qRT-PCR of ZIKV infection during pregnancy. RESULTS The prevalence of congenital abnormalities related to ZIKV was 2.69 cases per 10,000 live births during this period. Exanthem was the main clinical finding, observed in 92.5% of the mothers in this study. Regarding the timing of ZIKV infection, the first trimester was the most frequent time of infection among mothers of infants with CZS (54.55%) (p=0.0007). The case fatality rate was 5% (n=6). Among the 23 children who were classified as having CZS, 13 (56.52%) of them presented with microcephaly. Only 13 (56.52%) children with CZS were tested by qRT-PCR for ZIKV infection at birth, five (38%) were positive. CONCLUSIONS This study highlights the congenital alterations of ZIKV infection during pregnancy in an epidemic burst, demonstrating that the alterations found in other studies are similar to the present research.
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Affiliation(s)
| | - Cristina Souza
- Faculty of Health Sciences, School of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | | | - Julio Henrique Rosa Croda
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil; Faculty of Health Sciences, School of Medicine, Federal University of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil; Oswaldo Cruz Foundation, Campo Grande, Mato Grosso do Sul, Brazil
| | | | - Sara Santos Bernardes
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil; Laboratory of Tissue Microenviroment, Department of General Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Silvana Beutinger Marchioro
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Mato Grosso do Sul, Brazil; Institute of Health Sciences, Immunology Laboratory Federal University of Bahia, Salvador, Bahia, Brazil.
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Barbosa MDS, de Sousa IBA, Simionatto S, Borsuk S, Marchioro SB. Recombinant polypeptide of Mycobacterium leprae as a potential tool for serological detection of leprosy. AMB Express 2019; 9:201. [PMID: 31848766 PMCID: PMC6917672 DOI: 10.1186/s13568-019-0928-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 12/07/2019] [Indexed: 12/11/2022] Open
Abstract
Current prevention methods for the transmission of Mycobacterium leprae, the causative agent of leprosy, are inadequate as suggested by the rate of new leprosy cases reported. Simple large-scale detection methods for M. leprae infection are crucial for early detection of leprosy and disease control. The present study investigates the production and seroreactivity of a recombinant polypeptide composed of various M. leprae protein epitopes. The structural and physicochemical parameters of this construction were assessed using in silico tools. Parameters like subcellular localization, presence of signal peptide, primary, secondary, and tertiary structures, and 3D model were ascertained using several bioinformatics tools. The resultant purified recombinant polypeptide, designated rMLP15, is composed of 15 peptides from six selected M. leprae proteins (ML1358, ML2055, ML0885, ML1811, ML1812, and ML1214) that induce T cell reactivity in leprosy patients from different hyperendemic regions. Using rMLP15 as the antigen, sera from 24 positive patients and 14 healthy controls were evaluated for reactivity via ELISA. ELISA-rMLP15 was able to diagnose 79.17% of leprosy patients with a specificity of 92.86%. rMLP15 was also able to detect the multibacillary and paucibacillary patients in the same proportions, a desirable addition in the leprosy diagnosis. These results summarily indicate the utility of the recombinant protein rMLP15 in the diagnosis of leprosy and the future development of a viable screening test.
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Bampi JVB, Correa ME, Bet GMDS, Marchioro SB, Simionatto S. Descriptive analysis of syphilis cases reported in Mato Grosso do Sul, Brazil identifies failure in treatment. Rev Soc Bras Med Trop 2019; 52:e20180026. [PMID: 31038618 DOI: 10.1590/0037-8682-0026-2018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 11/29/2018] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Syphilis infection remains an alarming public health problem worldwide. METHODS This study analyzed syphilis cases listed in the Information System on Diseases of Compulsory Declaration (SINAN) of Mato Grosso do Sul state in Brazil between January 2013 and December 2014. RESULTS Most of the evaluated syphilis cases would have been preventable through public education, particularly congenital syphilis in children of previously diagnosed mothers and infection by untreated sexual partners. CONCLUSIONS The incidence rate of syphilis could be reduced by improving prevention through counselling on the risk of infection, improving access to condoms, and increasing the frequency of diagnostic tests.
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Affiliation(s)
| | - Maisa Estopa Correa
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, MS, Brasil
| | - Graciela Mendonça Dos Santos Bet
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, MS, Brasil.,2Hospital Universitário de Dourados, Universidade Federal da Grande Dourados, Dourados, MS, Brasil
| | | | - Simone Simionatto
- Laboratório de Pesquisa em Ciências da Saúde, Universidade Federal da Grande Dourados, Dourados, MS, Brasil
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Zanella LF, de Sousa IBA, Barbosa MDS, Faccenda O, Simionatto S, Marchioro SB. High detection rate of new cases of multibacillary leprosy in Mato Grosso do Sul, Brazil: an observational study from 2001-2015. Rev Inst Med Trop Sao Paulo 2018; 60:e67. [PMID: 30427402 PMCID: PMC6223305 DOI: 10.1590/s1678-9946201860067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 10/03/2018] [Indexed: 12/03/2022] Open
Abstract
Leprosy remains a public health problem in Brazil, and the Mato Grosso do Sul State (MS) had the seventh highest rate of detection of new cases in the country in 2015 (26.59 per 100,000 inhabitants) which was classified as very high. This work aimed to determine the epidemiological characteristics of leprosy in MS. Descriptive statistics were performed with data from the Information System on Diseases of Compulsory Declaration (SINAN) between 2001 and 2015, with all patients included in the system serving as the sample. Clinical forms of multibacillary (MB) leprosy predominated in MS during the study period, with a clear positive trend from 2009 to 2015 and a peak in the detection rate of new cases (NCDR) in 2014 corresponding to 40.39 per 100,000 population (p<0.001). The most affected groups were men (56.7%) aged 20-59 years (70.52%), an economically active population. We observed that Northern MS had the highest overall NCDR in the State. In cities bordering other countries, NCDRs were significantly lower than in those of other analyzed cities. There was no dependency ratio correlating NCDRs in cities with higher or lower indexes with basic care coverage (p=0.799) and human development index (p=0.887). In conclusion, the large number of patients with MB leprosy indicates that the diagnosis of leprosy is delayed in MS, perhaps due to difficulties related to diagnostic methods. This situation contributes to the continuing prevalence of leprosy in MS.
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Affiliation(s)
- Leticia Ferrigolo Zanella
- Universidade Federal da Grande Dourados, Faculdade de Ciências da Saúde, Programa de Pós-Graduação Stricto Sensu em Ciências da Saúde, Dourados, Mato Grosso do Sul, Brazil
| | - Iara Beatriz Andrade de Sousa
- Universidade Federal da Grande Dourados, Faculdade de Ciências da Saúde, Programa de Pós-Graduação Stricto Sensu em Ciências da Saúde, Dourados, Mato Grosso do Sul, Brazil
| | - Marcelo dos Santos Barbosa
- Universidade Federal da Grande Dourados, Faculdade de Ciências da Saúde, Programa de Pós-Graduação Stricto Sensu em Ciências da Saúde, Dourados, Mato Grosso do Sul, Brazil
| | - Odival Faccenda
- Universidade Estadual do Mato Grosso do Sul, Programa de Pós-Graduação Stricto Sensu em Ensino em Saúde, Dourados, Mato Grosso do Sul, Brazil
| | - Simone Simionatto
- Universidade Federal da Grande Dourados, Faculdade de Ciências da Saúde, Programa de Pós-Graduação Stricto Sensu em Ciências da Saúde, Dourados, Mato Grosso do Sul, Brazil
| | - Silvana Beutinger Marchioro
- Universidade Federal da Grande Dourados, Faculdade de Ciências da Saúde, Programa de Pós-Graduação Stricto Sensu em Ciências da Saúde, Dourados, Mato Grosso do Sul, Brazil
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Fisch A, Marchioro SB, Gomes CK, Galli V, de Oliveira NR, Simionatto S, Dellagostin OA, Mendonça M, Moreira ÂN, Conceição FR. Commercial bacterins did not induce detectable levels of antibodies in mice against Mycoplasma hyopneumoniae antigens strongly recognized by swine immune system. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.trivac.2016.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Jorge S, de Oliveira NR, Marchioro SB, Fisch A, Gomes CK, Hartleben CP, Conceição FR, Dellagostin OA. The Mycoplasma hyopneumoniae recombinant heat shock protein P42 induces an immune response in pigs under field conditions. Comp Immunol Microbiol Infect Dis 2014; 37:229-36. [DOI: 10.1016/j.cimid.2014.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 07/01/2014] [Accepted: 07/02/2014] [Indexed: 01/19/2023]
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Marchioro SB, Fisch A, Gomes CK, Jorge S, Galli V, Haesebrouck F, Maes D, Dellagostin O, Conceição FR. Local and systemic immune responses induced by a recombinant chimeric protein containing Mycoplasma hyopneumoniae antigens fused to the B subunit of Escherichia coli heat-labile enterotoxin LTB. Vet Microbiol 2014; 173:166-71. [PMID: 25091529 DOI: 10.1016/j.vetmic.2014.07.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [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: 01/28/2014] [Revised: 07/10/2014] [Accepted: 07/11/2014] [Indexed: 11/24/2022]
Abstract
A multi-antigen chimera composed of three antigens of Mycoplasma hyopneumoniae (R1, P42, and NrdF) and the mucosal adjuvant Escherichia coli heat-labile enterotoxin B subunit (LTB) was constructed, and its antigenic and immunogenic properties were evaluated in mice and pigs. In addition, we compared the effect of the fusion and co-administration of these proteins in mice. Antibodies against each subunit recognized the chimeric protein. Intranasal and intramuscular immunization of mice with the chimeric protein significantly increased IgG and IgA levels in the serum and tracheobronchial lavages, respectively, against some of the antigens present in the chimeric. Swine immunized with the chimeric protein developed an immune response against all M. hyopneumoniae antigens present in the fusion with a statistically significant difference (P<0.05). The adjuvant rLTB enhanced the immune response in both fused and co-administered antigens; however, better results were obtained with the chimeric protein. This multi-antigen is a promising vaccine candidate that may help control M. hyopneumoniae infection.
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Affiliation(s)
- Silvana Beutinger Marchioro
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil.
| | - Andressa Fisch
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil
| | - Charles K Gomes
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil
| | - Sérgio Jorge
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil
| | - Vanessa Galli
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil
| | - Freddy Haesebrouck
- Department of Pathology, Bacteriology and Avian Diseases, Ghent University, Faculty of Veterinary Medicine, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - Dominiek Maes
- Unit of Porcine Health Management, Department of Reproduction, Obstetrics and Herd Health, Ghent University, Faculty of Veterinary Medicine, Salisburylaan 133, B-9820 Merelbeke, Belgium
| | - Odir Dellagostin
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil
| | - Fabricio R Conceição
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil
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Simionatto S, Marchioro SB, Maes D, Dellagostin OA. Mycoplasma hyopneumoniae: from disease to vaccine development. Vet Microbiol 2013; 165:234-42. [PMID: 23680109 DOI: 10.1016/j.vetmic.2013.04.019] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/15/2013] [Accepted: 04/16/2013] [Indexed: 02/02/2023]
Abstract
Mycoplasma hyopneumoniae is the etiological agent of swine enzootic pneumonia (EP), a disease that affects swine production worldwide. Vaccination is the most cost-effective strategy for the control and prevention of the disease. Despite efforts to control M. hyopneumoniae infection, significant economic losses in pig production continue to occur. The results of genome-based research have the potential to help understand the biology and pathogenesis of M. hyopneumoniae, and contribute to the development of more effective vaccines and diagnostic tests. In this review, the characteristics of M. hyopneumoniae related to pathogenesis and control measures will be discussed. Special emphasis will be placed on vaccination strategies that have been proposed with the use of reverse vaccinology approaches.
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Affiliation(s)
- Simone Simionatto
- Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, RS, Brazil.
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23
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Marchioro SB, Maes D, Flahou B, Pasmans F, Del Pozo Sacristán R, Vranckx K, Melkebeek V, Cox E, Wuyts N, Haesebrouck F. Local and systemic immune responses in pigs intramuscularly injected with an inactivated Mycoplasma hyopneumoniae vaccine. Vaccine 2013; 31:1305-11. [PMID: 23306368 DOI: 10.1016/j.vaccine.2012.12.068] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Revised: 11/21/2012] [Accepted: 12/24/2012] [Indexed: 10/27/2022]
Abstract
The immune response induced by intramuscular administration of a commercial inactivated Mycoplasma hyopneumonie whole-cell vaccine (Suvaxyn(®)MH One) was investigated in conventional M. hyopneumoniae-free pigs. The animals were assigned randomly to two groups: non-vaccinated and vaccinated. Pigs in the vaccinated group were injected intramuscularly with the vaccine at 7 days of age, whereas non-vaccinated pigs received physiological saline solution (PBS). Pigs were euthanized and necropsied at 30, 36 and 58 days of age. Blood, bronchoalveolar lavage (BAL) fluid, spleen, lung and bronchial lymph nodes (BLN) were collected. Serum and BAL fluid were tested for the presence of antibodies by ELISA. Monomorphonuclear cells from the peripheral blood and tissues were isolated to quantify the T cell subsets by flow cytometry, and cytokine production by ELIspot and ELISA. Antibodies against M. hyopneumoniae were detected in serum of most vaccinated pigs at 30 days of age. M. hyopneumoniae specific IgG, IgM and IgA were detected in BAL fluid from vaccinated animals, but not from control animals. Significantly higher numbers of IL-12 secreting cells were observed in the lung at day 58 in the vaccinated than in the non-vaccinated group (p<0.05). The number of IL-10 secreting cells from BLN was also higher in the vaccinated group at day 58 (p<0.05). After restimulation in vitro, lymphocytes from BLN and lungs secreted significantly higher levels of IL-12 in the vaccinated group at day 58. These results show that the vaccine induced both systemic and mucosal cellular and humoral immune responses.
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Affiliation(s)
- Silvana Beutinger Marchioro
- Department of Pathology, Bacteriology and Avian Diseases, Ghent University, Faculty of Veterinary Medicine, Salisburylaan 133, B-9820 Merelbeke, Belgium.
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24
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Marchioro SB, Simionatto S, Galli V, Conceição FR, Brum CB, Fisch A, Gomes CK, Dellagostin OA. Production and characterization of recombinant transmembrane proteins from Mycoplasma hyopneumoniae. Vet Microbiol 2011; 155:44-52. [PMID: 21890287 DOI: 10.1016/j.vetmic.2011.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 07/27/2011] [Accepted: 08/01/2011] [Indexed: 10/17/2022]
Abstract
Mycoplasma hyopneumoniae is the etiological agent of swine enzootic pneumonia (EP), a chronic respiratory disease which causes significant economic losses to the swine industry worldwide. More efficient strategies for controlling this disease are necessary. In this study, we cloned17 genes coding for transmembrane proteins from M. hyopneumoniae, among which six were successfully expressed in Escherichia coli and had their immunogenic and antigenic properties evaluated. All proteins were immunogenic in mice and sera from naturally infected pigs reacted with the recombinant proteins, suggesting that they are expressed during infection. These antigens may contribute for the development of new recombinant vaccines and diagnostic tests against EP.
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Affiliation(s)
- S B Marchioro
- Laboratório de Biologia Molecular, Núcleo de Biotecnologia, Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, RS, Brazil
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Costa MMD, Silva MSE, Spricigo DA, Witt NM, Marchioro SB, Kolling L, Vargas APCD. Caracterização epidemiológica, molecular e perfil de resistência aos antimicrobianos de Escherichia coli isoladas de criatórios suínos do sul do Brasil. Pesq Vet Bras 2006. [DOI: 10.1590/s0100-736x2006000100002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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
A colibacilose é a enfermidade entérica de maior impacto na suinocultura, sendo ocasionada por cepas enterotoxigênicas de Escherichia coli. Quarenta isolados clínicos de suínos com diarréia e 13 isolados ambientais foram analisados quanto ao perfil genotípico, relação genética e resistência antimicrobiana. O gene que codifica para a toxina Stb foi identificado em 50% dos isolados clínicos, seguido por Sta e Lt, com 35%. Dentre os fatores de adesinas pesquisados, a F18 foi encontrada em 27,5% das amostras. A técnica de ERIC-PCR utilizada para caracterização epidemiológica dos isolados, não demonstrou poder discriminatório esperado, e apesar de permitir a separação dos isolados em grupos, estes não evidenciaram grupos relacionados aos fatores de virulência. No teste de susceptibilidade antimicrobiana a maior resistência foi observada à tetraciclina, em 88,6%. O índice de resistência múltipla aos antimicrobianos (IRMA), variou entre 0 a 0,69.
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