Meta-analytic Metagenomic Analysis of the Microbiome in Gastric Cancer
摘要
Gastric cancer is a worldwide disease for which several risk factors are involved. Helicobacter pylori (H. pylori) infection is considered the main micro-organism impacting carcinogenesis. One of the new scientific approaches in gastric microbiome studies is the 16S ribosomal RNA (16S rRNA) amplification by liquid biopsies with next-generation sequencing (NGS) techniques. This study is a metagenomic meta-analytic investigation based on genomic data uploaded in online medical databases. These works were selected on the basis of the amplification of the 16S rRNA gene regions of the microbiomes in gastric biopsies aiming to describe the microbial taxonomy of the patients with Helicobacter pylori infections, distinguishing relative abundance in patients. Subgroups were differentiated according to pathological diagnosis, the molecular techniques used, the study design, and the geographical origin of the individuals.