Next generation sequencing in gastric or gastroesophageal adenocarcinoma

Seminal analyses of The Cancer Genome Atlas (TGCA) and Asian Cancer Research Group (ACRG) have provided unprecedented insight into the molecular underpinnings of gastric cancer (GC). At the same time, next generation sequencing (NGS) panels, driven by quantum improvements in DNA sequencing technology and bioinformatics, are now routinely used in standard clinical care and also extensively for research purposes. This review article will discuss the molecular subtypes of GC, the current standard-of-care therapies for GC and the role of NGS in standard care and in research.