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Samri A, Bandeira AC, Gois LL, Silva CGR, Rousseau A, Corneau A, Tarantino N, Maucourant C, Queiroz GAN, Vieillard V, Yssel H, Campos GS, Sardi S, Autran B, Rios Grassi MF. Comprehensive analysis of early T cell responses to acute Zika Virus infection during the first epidemic in Bahia, Brazil. PLoS One 2024; 19:e0302684. [PMID: 38722858 PMCID: PMC11081376 DOI: 10.1371/journal.pone.0302684] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/05/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND In most cases, Zika virus (ZIKV) causes a self-limited acute illness in adults, characterized by mild clinical symptoms that resolve within a few days. Immune responses, both innate and adaptive, play a central role in controlling and eliminating virus-infected cells during the early stages of infection. AIM To test the hypothesis that circulating T cells exhibit phenotypic and functional activation characteristics during the viremic phase of ZIKV infection. METHODS A comprehensive analysis using mass cytometry was performed on peripheral blood mononuclear cells obtained from patients with acute ZIKV infection (as confirmed by RT-PCR) and compared with that from healthy donors (HD). The frequency of IFN-γ-producing T cells in response to peptide pools covering immunogenic regions of structural and nonstructural ZIKV proteins was quantified using an ELISpot assay. RESULTS Circulating CD4+ and CD8+ T lymphocytes from ZIKV-infected patients expressed higher levels of IFN-γ and pSTAT-5, as well as cell surface markers associated with proliferation (Ki-67), activation ((HLA-DR, CD38) or exhaustion (PD1 and CTLA-4), compared to those from HD. Activation of CD4+ and CD8+ memory T cell subsets, including Transitional Memory T Cells (TTM), Effector Memory T cells (TEM), and Effector Memory T cells Re-expressing CD45RA (TEMRA), was prominent among CD4+ T cell subset of ZIKV-infected patients and was associated with increased levels of IFN-γ, pSTAT-5, Ki-67, CTLA-4, and PD1, as compared to HD. Additionally, approximately 30% of ZIKV-infected patients exhibited a T cell response primarily directed against the ZIKV NS5 protein. CONCLUSION Circulating T lymphocytes spontaneously produce IFN-γ and express elevated levels of pSTAT-5 during the early phase of ZIKV infection whereas recognition of ZIKV antigen results in the generation of virus-specific IFN-γ-producing T cells.
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Affiliation(s)
- Assia Samri
- Sorbonne-Université, Inserm 1135, CNRS ERL8255, Centre d’immunologie et des Maladies Infectieuses, Cimi, Paris, France
| | - Antonio Carlos Bandeira
- Secretaria de Saúde da Bahia, Salvador, Bahia, Brazil
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Brazil
| | - Luana Leandro Gois
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública (EBMSP), Salvador, Brazil
- Departamento de Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Alice Rousseau
- Sorbonne-Université, Inserm 1135, CNRS ERL8255, Centre d’immunologie et des Maladies Infectieuses, Cimi, Paris, France
| | - Aurelien Corneau
- Faculté de Médecine Pierre et Marie Curie, Plateforme de Cytométrie (CyPS), UMS30–LUMIC, Paris, France
| | - Nadine Tarantino
- Sorbonne-Université, Inserm 1135, CNRS ERL8255, Centre d’immunologie et des Maladies Infectieuses, Cimi, Paris, France
| | - Christopher Maucourant
- Sorbonne-Université, Inserm 1135, CNRS ERL8255, Centre d’immunologie et des Maladies Infectieuses, Cimi, Paris, France
| | - Gabriel Andrade Nonato Queiroz
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública (EBMSP), Salvador, Brazil
| | - Vincent Vieillard
- Sorbonne-Université, Inserm 1135, CNRS ERL8255, Centre d’immunologie et des Maladies Infectieuses, Cimi, Paris, France
| | - Hans Yssel
- Sorbonne-Université, Inserm 1135, CNRS ERL8255, Centre d’immunologie et des Maladies Infectieuses, Cimi, Paris, France
| | - Gubio Soares Campos
- Departamento de Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Silvia Sardi
- Departamento de Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Brigitte Autran
- Sorbonne-Université, Inserm 1135, CNRS ERL8255, Centre d’immunologie et des Maladies Infectieuses, Cimi, Paris, France
| | - Maria Fernanda Rios Grassi
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz (FIOCRUZ), Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública (EBMSP), Salvador, Brazil
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Paraná VC, Feitosa CA, da Silva GCS, Gois LL, Santos LA. Risk factors associated with severe dengue in Latin America: A systematic review and meta-analysis. Trop Med Int Health 2024; 29:173-191. [PMID: 38263345 DOI: 10.1111/tmi.13968] [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] [Indexed: 01/25/2024]
Abstract
OBJECTIVE Severe dengue is a significant health problem in Latin America, with children being the most affected. Understanding risk factors for severe dengue is crucial for enhancing patient care. Therefore, this study aims to systematically review the literature to identify the risk factors associated with severe dengue in Latin America through systematic review and meta-analysis. METHODS PubMed, SciELO, LILACS and EMBASE databases were used to search for eligible scientific articles for the review. The outcomes considered were symptoms of severe dengue, hospitalisation and death. The Joanna Briggs Institute Critical Appraisal Checklist was used to assess the quality of the studies. Data analysis was performed using STATA v 13.0 software. The degree of heterogeneity between studies was quantified using the I2 measure, and statistically significant results were defined as those with p values <0.05. RESULTS Of the 1876 articles screened, 47 articles were included in the systematic review and 45 articles were analysed through meta-analysis. Identified risk factors associated with severe dengue included secondary dengue infection, female sex, white or Caucasian ethnicity and specific signs and symptoms such as headache, myalgia and/or arthralgia, vomiting/nausea, abdominal pain or tenderness, diarrhoea, prostration, lethargy, fatigue or similar. For the death outcome, respiratory symptoms and age <18 years were identified as risk factors. On the other hand, in women, the diagnosis of positive tourniquet test, platelet count <100,000 per μL and symptoms of capillary fragility were associated with a lower probability of death. These data highlight the importance of early screening of patients, to identify possible haemorrhagic signs and reduce deaths from dengue. This study has limitations, including possible publication bias, heterogeneity of results and study design biases. CONCLUSION These findings are significant for shaping strategies, management approaches and identifying high-risk groups, which will help establish future guidelines.
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Affiliation(s)
- Victoria Cruz Paraná
- Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
| | | | | | - Luana Leandro Gois
- Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil
- Department of Biointeraction Sciences, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Luciane Amorim Santos
- Bahiana School of Medicine and Public Health, Salvador, Bahia, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Salvador, Bahia, Brazil
- Graduate Program in Health Sciences, College of Medicine of Bahia, Federal University of Bahia, Salvador, Bahia, Brazil
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de Aquino Firmino A, Filho PRTG, Martins ALL, Araújo TH, Gois LL, da Silva Batista E, Araújo JPL, Galvão-Castro B, Grassi MFR. HTLV-1 Proviral Load in Vaginal Fluid Correlates with Levels in Peripheral Blood Mononuclear Cells. Pathogens 2023; 12:pathogens12050682. [PMID: 37242352 DOI: 10.3390/pathogens12050682] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/18/2023] [Revised: 05/01/2023] [Accepted: 05/03/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND The prevalence of human T-lymphotropic virus type-1 (HTLV-1) infection is higher in women, and sexual intercourse has been described as an important route of male-to-female transmission. The present study aimed to quantify HTLV-1 proviral load (PVL) in vaginal fluid, and to investigate correlations with PVL in peripheral blood mononuclear cells (PBMCs). In addition, cytopathological alterations and vaginal microbiota were evaluated. METHODS HTLV-1-infected women were consecutively recruited at a multidisciplinary center for HTLV patients in Salvador, Brazil. All women underwent gynecological examinations to obtain cervicovaginal fluid and venipuncture for blood collection. PVL, as measured by real-time quantitative polymerase chain reaction (RT-qPCR), was expressed as the number of copies of HTLV-1/106 cells in blood and vaginal fluid samples. Light microscopy was used to assess cervicovaginal cytopathology and vaginal microbiota. RESULTS In the 56 included women (43 asymptomatic carriers and 13 diagnosed with HTLV-1-associated myelopathy/tropical spastic paraparesis-HAM/TSP), mean age was 35.9 (SD ± 7.2) years. PVL was higher in PBMCs (median: 23,264 copies/106 cells; IQR: 6776-60,036) than in vaginal fluid (451.9 copies/106 cells; IQR: 0-2490) (p < 0.0001). PVL in PBMCs was observed to correlate directly with PVL in vaginal fluid (R = 0.37, p = 0.006). PVL was detected in the vaginal fluid of 24 of 43 (55.8%) asymptomatic women compared to 12 of 13 (92.3%) HAM/TSP patients, p = 0.02. Cytopathologic analyses revealed no differences between women with detectable or undetectable PVL. CONCLUSION HTLV-1 proviral load is detectable in vaginal fluid and correlates directly with proviral load in peripheral blood. This finding suggests that sexual transmission of HTLV-1 from females to males may occur, as well as vertical transmission, particularly in the context of vaginal delivery.
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Affiliation(s)
- Alisson de Aquino Firmino
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
| | - Paulo Roberto Tavares Gomes Filho
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
| | - Adenilda Lima Lopes Martins
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
- Department of Health (DSAU), State University of Feira de Santana (UEFS), Feira de Santana 44036-900, Bahia, Brazil
| | - Thessika Hialla Araújo
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
| | - Luana Leandro Gois
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
- Department of Biointeraction Sciences, Institute of Health Sciences, Federal University of Bahia (UFBA), Salvador 40110-902, Bahia, Brazil
| | - Everton da Silva Batista
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
| | - Jean Paulo Lacerda Araújo
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
| | - Bernardo Galvão-Castro
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
- Advanced Laboratory of Public Health (LASP), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (Fiocruz), Salvador 40296-710, Bahia, Brazil
| | - Maria Fernanda Rios Grassi
- Integrative Multidisciplinary HTLV Center (CHTLV), Bahiana School of Medicine and Public Health (EBMSP), Salvador 40290-000, Bahia, Brazil
- Advanced Laboratory of Public Health (LASP), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (Fiocruz), Salvador 40296-710, Bahia, Brazil
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Santana CS, Andrade FDO, da Silva GCS, Nascimento JODS, Campos RF, Giovanetti M, Santos LA, Gois LL, Alcantara LCJ, Barreto FK. Advances in preventive vaccine development against HTLV-1 infection: A systematic review of the last 35 years. Front Immunol 2023; 14:1073779. [PMID: 36860854 PMCID: PMC9968880 DOI: 10.3389/fimmu.2023.1073779] [Citation(s) in RCA: 2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/25/2023] [Indexed: 02/15/2023] Open
Abstract
Introduction The Human T-lymphotropic virus type 1 (HTLV-1) was the first described human retrovirus. It is currently estimated that around 5 to 10 million people worldwide are infected with this virus. Despite its high prevalence, there is still no preventive vaccine against the HTLV-1 infection. It is known that vaccine development and large-scale immunization play an important role in global public health. To understand the advances in this field we performed a systematic review regarding the current progress in the development of a preventive vaccine against the HTLV-1 infection. Methods This review followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA®) guidelines and was registered at the International Prospective Register of Systematic Reviews (PROSPERO). The search for articles was performed in PubMed, Lilacs, Embase and SciELO databases. From the 2,485 articles identified, 25 were selected according to the inclusion and exclusion criteria. Results The analysis of these articles indicated that potential vaccine designs in development are available, although there is still a paucity of studies in the human clinical trial phase. Discussion Although HTLV-1 was discovered almost 40 years ago, it remains a great challenge and a worldwide neglected threat. The scarcity of funding contributes decisively to the inconclusiveness of the vaccine development. The data summarized here intends to highlight the necessity to improve the current knowledge of this neglected retrovirus, encouraging for more studies on vaccine development aiming the to eliminate this human threat. Systematic review registration https://www.crd.york.ac.uk/prospero, identifier (CRD42021270412).
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Affiliation(s)
- Carolina Souza Santana
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | | | | | | | - Raissa Frazão Campos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Marta Giovanetti
- Laboratório de Mosquitos Vetores: Endossimbiontes e Interação Patógeno-Vetor, Instituto René Rachou - Fiocruz, Belo Horizonte, Minas Gerais, Brazil.,Department of Science and Technology for Humans and the Environment, University of Campus Bio-Medico di Roma, Rome, Italy
| | - Luciane Amorim Santos
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil.,Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | - Luana Leandro Gois
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil.,Departamento de Ciências da Biointeração, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Luiz Carlos Júnior Alcantara
- Laboratório de Mosquitos Vetores: Endossimbiontes e Interação Patógeno-Vetor, Instituto René Rachou - Fiocruz, Belo Horizonte, Minas Gerais, Brazil
| | - Fernanda Khouri Barreto
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil
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5
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de Oliveira Andrade F, Cucco MS, Borba MMN, Neto RC, Gois LL, de Almeida Rego FF, Santos LA, Barreto FK. An overview of sequencing technology platforms applied to HTLV-1 studies: a systematic review. Arch Virol 2021; 166:3037-3048. [PMID: 34415436 PMCID: PMC8377154 DOI: 10.1007/s00705-021-05204-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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 06/20/2021] [Indexed: 11/28/2022]
Abstract
Human T-lymphotropic virus type 1 (HTLV-1) was the first human retrovirus described. The viral factors involved in the different clinical manifestations of infected individuals are still unknown, and in this sense, sequencing technologies can support viral genome studies, contributing to a better understanding of infection outcome. Currently, several sequencing technologies are available with different approaches. To understand the methodological advances in the HTLV-1 field, it is necessary to organize a synthesis by a rigorous review. This systematic literature review describes different technologies used to generate HTLV-1 sequences. The review follows the PRISMA guidelines, and the search for articles was performed in PubMed, Lilacs, Embase, and SciELO databases. From the 574 articles found in search, 62 were selected. The articles showed that, even with the emergence of new sequencing technologies, the traditional Sanger method continues to be the most commonly used methodology for generating HTLV-1 genome sequences. There are many questions that remain unanswered in the field of HTLV-1 research, and this reflects on the small number of studies using next-generation sequencing technologies, which could help address these gaps. The data compiled and analyzed here can help research on HTLV-1, assisting in the choice of sequencing technologies.
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Affiliation(s)
- Felipe de Oliveira Andrade
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Campus Anísio Teixeira, Rua Hormindo Barros, 58. Bairro Candeias, Vitória da Conquista, 45.029-094, Brazil
| | - Marina Silveira Cucco
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Faculdade de Medicina da Bahia, Programa de Pós-graduação em Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | | | | | - Luana Leandro Gois
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
- Universidade Católica do Salvador, Salvador, Brazil
| | | | - Luciane Amorim Santos
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
- Faculdade de Medicina da Bahia, Programa de Pós-graduação em Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
- Universidade Católica do Salvador, Salvador, Brazil
| | - Fernanda Khouri Barreto
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Campus Anísio Teixeira, Rua Hormindo Barros, 58. Bairro Candeias, Vitória da Conquista, 45.029-094, Brazil.
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Maucourant C, Nonato Queiroz GA, Corneau A, Leandro Gois L, Meghraoui-Kheddar A, Tarantino N, Bandeira AC, Samri A, Blanc C, Yssel H, Rios Grassi MF, Vieillard V. NK Cell Responses in Zika Virus Infection Are Biased towards Cytokine-Mediated Effector Functions. J Immunol 2021; 207:1333-1343. [PMID: 34408012 DOI: 10.4049/jimmunol.2001180] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/23/2021] [Indexed: 12/30/2022]
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus that has emerged as a global concern because of its impact on human health. ZIKV infection during pregnancy can cause microcephaly and other severe brain defects in the developing fetus and there have been reports of the occurrence of Guillain-Barré syndrome in areas affected by ZIKV. NK cells are activated during acute viral infections and their activity contributes to a first line of defense because of their ability to rapidly recognize and kill virus-infected cells. To provide insight into NK cell function during ZIKV infection, we have profiled, using mass cytometry, the NK cell receptor-ligand repertoire in a cohort of acute ZIKV-infected female patients. Freshly isolated NK cells from these patients contained distinct, activated, and terminally differentiated, subsets expressing higher levels of CD57, NKG2C, and KIR3DL1 as compared with those from healthy donors. Moreover, KIR3DL1+ NK cells from these patients produced high levels of IFN-γ and TNF-α, in the absence of direct cytotoxicity, in response to in vitro stimulation with autologous, ZIKV-infected, monocyte-derived dendritic cells. In ZIKV-infected patients, overproduction of IFN-γ correlated with STAT-5 activation (r = 0.6643; p = 0.0085) and was mediated following the recognition of MHC class 1-related chain A and chain B molecules expressed by ZIKV-infected monocyte-derived dendritic cells, in synergy with IL-12 production by the latter cells. Together, these findings suggest that NK cells contribute to the generation of an efficacious adaptive anti-ZIKV immune response that could potentially affect the outcome of the disease and/or the development of persistent symptoms.
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Affiliation(s)
- Christopher Maucourant
- Sorbonne Université, UPMC, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | | | - Aurelien Corneau
- UPMC Univ Paris 06, Plateforme de Cytométrie, UMS30-LUMIC, Faculté de Médecine Pierre et Marie Curie, Site Pitié-Salpêtrière, Paris, France; and
| | - Luana Leandro Gois
- FIOCRUZ, Salvador, Brazil.,Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
| | - Aida Meghraoui-Kheddar
- Sorbonne Université, UPMC, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | - Nadine Tarantino
- Sorbonne Université, UPMC, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | | | - Assia Samri
- Sorbonne Université, UPMC, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | - Catherine Blanc
- UPMC Univ Paris 06, Plateforme de Cytométrie, UMS30-LUMIC, Faculté de Médecine Pierre et Marie Curie, Site Pitié-Salpêtrière, Paris, France; and
| | - Hans Yssel
- Sorbonne Université, UPMC, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | | | - Vincent Vieillard
- Sorbonne Université, UPMC, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses, Paris, France;
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Cucco MS, de Moraes LEP, de Oliveira Andrade F, Khouri R, Galvão-Castro B, Araujo THA, de Almeida Rego FF, Gois LL, Barreto FK, Santos LA. Molecular characterization of HTLV-1 genomic region hbz from patients with different clinical conditions. J Med Virol 2021; 93:6418-6423. [PMID: 33835501 DOI: 10.1002/jmv.27005] [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: 12/14/2020] [Revised: 03/19/2021] [Accepted: 03/31/2021] [Indexed: 01/19/2023]
Abstract
The human T-cell lymphotropic virus type-1 (HTLV-1) is associated with severe pathologies, such as HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP), adult T-cell leukemia-lymphoma (ATLL), and infective dermatitis associated with the HTLV-1 (IDH). Interestingly, HTLV-1 infection does not necessarily imply the development of pathological processes and it is unknown why some patients remain asymptomatic carriers (AC). Despite some mutations in the HTLV-1 genome appear to influence the outcome of HTLV-1, there are few studies that characterize molecularly the hbz region. This study aimed to perform the molecular characterization of hbz gene isolated from patients with different clinical outcomes. A total of 15 sequences were generated and analyzed with 571 sequences previously published. The analises showed that the R119Q mutation seems to be related to HTLV-1 clinical conditions since the frequency of this HBZ mutation is significantly different in comparison between AC with HAM/TSP and ATLL. The R119Q mutation is possibly a protective factor as the frequency is higher in AC sequences.
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Affiliation(s)
| | - Laise Eduarda Paixão de Moraes
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brasil.,Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brasil
| | | | - Ricardo Khouri
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brasil.,Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brasil
| | | | | | | | - Luana Leandro Gois
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brasil.,Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brasil.,Universidade Católica do Salvador, Salvador, Bahia, Brasil
| | | | - Luciane Amorim Santos
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brasil.,Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Bahia, Brasil.,Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Bahia, Brasil.,Universidade Católica do Salvador, Salvador, Bahia, Brasil
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8
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Bandeira AC, Gois LL, Campos GS, Sardi S, Yssel H, Vieillard V, Autran B, Grassi MFR. Clinical and laboratory findings of acute Zika virus infection in patients from Salvador during the first Brazilian epidemic. Braz J Infect Dis 2020; 24:405-411. [PMID: 32941805 PMCID: PMC9392112 DOI: 10.1016/j.bjid.2020.08.005] [Citation(s) in RCA: 4] [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: 06/13/2020] [Revised: 08/05/2020] [Accepted: 08/16/2020] [Indexed: 11/09/2022] Open
Abstract
Several major epidemics of Zika fever, caused by the ZIKA virus (ZIKV), have emerged in Brazil since early 2015, eventually spreading to other countries on the South American continent. The present study describes the clinical manifestations and laboratory findings of patients with confirmed acute ZIKV infection during the first epidemic that occurred in Salvador, Brazil. All included patients were seen at the emergency room of a private tertiary hospital located in Salvador, Brazil from 2015 through 2017. Patients were considered eligible if signs of systemic viral febrile disease were present. All individuals were tested for ZIKV and Chikungunya infection using PCR, while rapid test was used to detect Dengue virus antibodies or, alternatively, the NS1 antigen. A diagnosis of acute ZIKV infection was confirmed in 78/434 (18%) individuals with systemic viral febrile illness. Positivity was mainly observed in blood, followed by saliva and urine. Coinfection with Chikungunya and/or Dengue virus was detected in 5% of the ZIKV-infected patients. The most frequent clinical findings were myalgia, arthralgia and low-grade fever. Laboratory analysis demonstrated normal levels of hematocrit, platelets and liver enzymes. In summary, in acute settings where molecular testing remains unavailable, clinicians face difficulties to confirm the diagnosis of ZIKV infection, as they rely only on clinical examinations and conventional laboratory tests.
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Affiliation(s)
- Antonio Carlos Bandeira
- UniFTC, Faculdade de Medicina, Salvador, BA, Brazil; Fundação Oswaldo Cruz (Fiocruz), Instituto Gonçalo Moniz, Salvador, BA, Brazil.
| | - Luana Leandro Gois
- Fundação Oswaldo Cruz (Fiocruz), Instituto Gonçalo Moniz, Salvador, BA, Brazil; Escola Bahiana de Medicina e Saúde Pública, Salvador, BA, Brazil
| | - Gubio Soares Campos
- Universidade Federal da Bahia, Instituto de Ciências da Saúde, Salvador, BA, Brazil
| | - Silvia Sardi
- Universidade Federal da Bahia, Instituto de Ciências da Saúde, Salvador, BA, Brazil
| | - Hans Yssel
- Université Pierre Marie-Curie, Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | - Vincent Vieillard
- Université Pierre Marie-Curie, Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | - Brigitte Autran
- Université Pierre Marie-Curie, Sorbonne Université, Centre d'Immunologie et des Maladies Infectieuses, Paris, France
| | - Maria Fernanda Rios Grassi
- Fundação Oswaldo Cruz (Fiocruz), Instituto Gonçalo Moniz, Salvador, BA, Brazil; Escola Bahiana de Medicina e Saúde Pública, Salvador, BA, Brazil
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Gois LL, Mehta S, Rodrigues MZA, Schooley RT, Badaró R, Grassi MFR. Decreased memory T-cell response and function in human immunodeficiency virus-infected patients with tegumentary leishmaniasis. Mem Inst Oswaldo Cruz 2013; 109:9-14. [PMID: 24141962 DOI: 10.1590/0074-0276130174] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Accepted: 07/18/2013] [Indexed: 02/08/2023] Open
Abstract
The effects of human immunodeficiency virus (HIV) on the immune response in patients with cutaneous leishmaniasis have not yet been fully delineated. This study quantified and evaluated the function of memory T-cell subsets in response to soluble Leishmania antigens (SLA) from patients coinfected with HIV and Leishmania with tegumentary leishmaniasis (TL). Eight TL/HIV coinfected subjects and 10 HIV seronegative subjects with TL were evaluated. The proliferative response of CD4+and CD8+T-cells and naïve, central memory (CM) and effector memory (EM) CD4+T-cells in response to SLA were quantified using flow cytometry. The median cell division indices for CD4+and CD8+T-cells of coinfected patients in response to SLA were significantly lower than those in patients with Leishmania monoinfection (p < 0.05). The proportions of CM and EM CD4+T-cells in response to SLA were similar between the coinfected patients and patients with Leishmania monoinfection. However, the median CM and EM CD4+T-cell counts from coinfected patients were significantly lower (p < 0.05). The reduction in the lymphoproliferative response to Leishmania antigens coincides with the decrease in the absolute numbers of both EM and CM CD4+T-cells in response to Leishmania antigens in patients coinfected with HIV/Leishmania.
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Affiliation(s)
| | - Sanjay Mehta
- Centro de Pesquisa Gonçalo Moniz, Fiocruz, SalvadorBA, Brasil
| | | | | | - Roberto Badaró
- Centro de Pesquisa Gonçalo Moniz, Fiocruz, SalvadorBA, Brasil
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