Advancements in stem cell research have enabled the establishment of three-dimensional (3D) primary cell cultures, known as organoids. These culture systems follow the organization of an in vivo organ, as they enclose the different epithelial cell lines of which it is normally composed. Generation of these 3D cultures has bridged the gap between in vitro models, made up by two-dimensional (2D) cancer cell lines cultures, and in vivo animal models, that have major differences with human diseases. Organoids are increasingly used as a model to study colonization of gastric mucosa by infectious agents and to better understand host-microbe interactions and the molecular events that lead to infection, pathogen-epithelial cells interactions and mechanisms of gastric mucosal injury. In this review we will focus on the role of organoids as a tool to investigate molecular interactions of Helicobacter (H.) pylori and Epstein Barr Virus (EBV) and gastric mucosa and how these infections, that affect ≈ 45% of the world population, might progress to gastric cancer, a highly prevalent cancer and the third leading cause of cancer death.
Keywords: EBV; Gastric cancer; Helicobacter pylori; Host-pathogen interaction; Infection; Organoids.
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