1
|
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).
Collapse
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
| |
Collapse
|
2
|
Navarro Borba MM, Santos LA, Neto RC, Oliveira Andrade FD, Salgado Á, de Almeida Rego FF, Júnior Alcantara LC, Farre L, Barreto FK. In silico analysis of human T-lymphotropic virus type 1 complete genomes from patients with different clinical outcomes. Future Virol 2022. [DOI: 10.2217/fvl-2021-0113] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aims: This study aims to identify nucleotide variations in human T-lymphotropic virus type 1 (HTLV-1) proviral genome that might be related with the different clinical conditions associated to the virus. Materials & methods: 91 complete HTLV-1 genomes available in GenBank with their respective clinical information were subjected to in silico analyzes (subtyping, molecular characterization and machine learning). Results: We identified 22 mutations that seems to be important in patients’ clinical condition. The presence of some mutations demonstrated alterations in the proteins physicochemical profile, such as the P34L, present in the p12 protein. Furthermore, a correlation between mutations in long terminal repeat and pX region seems to be important for clinical manifestation. Conclusions: Some mutations have the potential to alter the conformation of viral proteins that are important for infection outcomes. Therefore, further functional studies should be performed to assess the impact of these variations on the pathogenesis and on the development of clinical manifestations associated with HTLV-1.
Collapse
Affiliation(s)
| | - Luciane Amorim Santos
- Instituto Gonçalo Moniz, Salvador, Brazil
- Escola Bahiana de Medicina e Saúde Pública, Salvador, Brazil
- Universidade Católica do Salvador, Salvador, Brazil
- Programa de Pós-graduação em Ciências da Saúde, Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Salvador, Brazil
| | | | | | - Álvaro Salgado
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Luiz Carlos Júnior Alcantara
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Lourdes Farre
- Institut Català d’Oncologia, Institut d’Investigació Biomédica de Bellvitge, Barcelona, Spain
| | | |
Collapse
|
3
|
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.
Collapse
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.
| |
Collapse
|
4
|
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.
Collapse
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
| |
Collapse
|