| Texto completo | |
| Autor(es): |
Hebeler-Barbosa, Flavia
[1, 2]
;
Wolf, Ivan Rodrigo
[3]
;
Valente, Guilherme Targino
[3]
;
Mello, Francisco Campello do Amaral
[4]
;
Lampe, Elisabeth
[4]
;
Pardini, Maria Ines de Moura Campos
[1, 2]
;
Grotto, Rejane Maria Tommasini
[1, 2, 3]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Sao Paulo State Univ Unesp, Med Sch, BR-18618687 Botucatu, SP - Brazil
[2] Clin Hosp Botucatu HCFMB, Mol Biol Lab, BR-18618687 Botucatu, SP - Brazil
[3] Sao Paulo State Univ Unesp, Sch Agr, BR-18618687 Botucatu, SP - Brazil
[4] Fiocruz MS, Oswaldo Cruz Inst, Lab Viral Hepatitis, BR-21040900 Rio De Janeiro - Brazil
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MICROORGANISMS; v. 8, n. 9 SEP 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
Hepatitis B virus (HBV) is an enveloped virus that induces chronic liver disease. HBV has been classified into eight genotypes (A-H) according to its genome sequence by using Sanger sequencing or reverse hybridization. Sanger sequencing is often restricted to analyzing the S gene and is inaccurate for detecting minority genetic variants, whereas reverse hybridization detects only known mutations. Next-generation sequencing (NGS) is a robust tool for clinical virology with different protocols available. The objective of this study was to develop a new method for the study of viral genetic polymorphisms or more accurate genotyping using genome amplification followed by NGS. Plasma obtained from five chronically infected HBV individuals was used for viral DNA isolation. HBV full-genome PCR amplification was the enrichment method for NGS. Primers were used to amplify all HBV genotypes in three overlapping amplicons, following a tagmentation step and Illumina NGS. For phylogenetic analysis, sequences were extracted from the HBVdb database. We were able to amplify a full HBV genome; further, NGS was shown to be a robust method and allowed better genotyping, mainly in patients carrying mixed genotypes, classified according to other techniques. This new method may be significant for whole genome analyses, including other viruses. (AU) | |
| Processo FAPESP: | 17/07711-0 - Detecção de ZIKA Vírus (ZIKV), após exposição in vitro, em Células Mononucleares do sangue periférico e Plaquetas provenientes de indivíduos não infectados: Influência de Polimorfismos Genéticos |
| Beneficiário: | Rejane Maria Tommasini Grotto |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |