Intestinal epithelial research focuses on studying the cells that line the inner surface of the gastrointestinal tract, known as the intestinal epithelium. This area of research is concerned with understanding the structure, function, and regulation of these cells, which play a crucial role in absorbing nutrients, maintaining the integrity of the gut barrier, and protecting against pathogens and toxins. Research in this field often involves studying cell signaling pathways, cell differentiation, interactions with the gut microbiota, and the role of the intestinal epithelium in health and disease, such as inflammatory bowel diseases and intestinal infections.