Assessment of Epstein-Barr virus nucleic acids in gastric but not in breast cancer by next-generation sequencing of pooled Mexican samples


Autoria(s): Fuentes-Pananá, Ezequiel M.; Larios-Serrato, Violeta; Méndez-Tenorio, Alfonso; Morales-Sánchez, Abigail; Arias, Carlos F.; Torres, Javier
Cobertura

Origin of publication: Brazil

Data(s)

06/07/2016

Resumo

Gastric (GC) and breast (BrC) cancer are two of the most common and deadly tumours. Different lines of evidence suggest a possible causative role of viral infections for both GC and BrC. Wide genome sequencing (WGS) technologies allow searching for viral agents in tissues of patients with cancer. These technologies have already contributed to establish virus-cancer associations as well as to discovery new tumour viruses. The objective of this study was to document possible associations of viral infection with GC and BrC in Mexican patients. In order to gain idea about cost effective conditions of experimental sequencing, we first carried out an in silico simulation of WGS. The next-generation-platform IlluminaGallx was then used to sequence GC and BrC tumour samples. While we did not find viral sequences in tissues from BrC patients, multiple reads matching Epstein-Barr virus (EBV) sequences were found in GC tissues. An end-point polymerase chain reaction confirmed an enrichment of EBV sequences in one of the GC samples sequenced, validating the next-generation sequencing-bioinformatics pipeline.

Formato

html

Identificador

http://www.bioline.org.br/abstract?id=oc16028

Idioma(s)

en

Publicador

Fundação Oswaldo Cruz, Fiocruz

Relação

http://memorias.ioc.fiocruz.br; http://www.bioline.org.br/oc

Direitos

Copyright 2016 - Memórias do Instituto Oswaldo Cruz

Fonte

Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 111 Num 3

Palavras-Chave #gastric cancer; breast cancer; gastritis; wide genome sequencing; EBV
Tipo

AA