part of part of goblet cell epithelial cell of large intestine intestine goblet cell large intestine goblet cell FMA:263054 goblet cell of epithelium of large intestine The large intestine goblet cell is a highly specialized type of mucosal epithelial cell that is located within the epithelial lining of the large intestine. The key function of goblet cells is the production and secretion of a protective layer of mucus which is essential for maintaining gut homeostasis. Goblet cells have a characteristic 'goblet-like' shape, which adapts them for this specific function: organelles such as the nucleus, mitochondria, ER, and Golgi apparatus are located in the basal portion of the cell; while the vesicles with mucins (required for mucus production) are located apically, close to the apical membrane where their exocytosis takes place. The goblet cells of the large intestine produce a thick layer of mucus that coats the intestinal lumen. This mucus provides a barrier that prevents the direct contact of intestinal cells with bacteria and other potentially toxic substances present in the digestive tract. It also lubricates the intestine to facilitate the smooth passage of digested food material. It is worth noting that the mucus system differs between the small and large intestine: although in both the mucus is built around MUC2 mucin polymers produced by goblet cells, it is becoming clear that there are several types of goblet cells that function in different ways. From an immunological perspective, large intestine goblet cells participate in promoting a balanced gut immune response. They contribute to the process known as immune tolerance, where they prevent the body's immune system from overreacting to the trillions of bacteria present in the gut. These cells achieve this by secreting molecules that help maintain a calm environment, limiting inflammatory reactions unless absolutely necessary. Any dysfunction or decrease in the number of goblet cells can result in a compromised intestinal barrier leading to various health issues, including inflammatory bowel disease. (This extended description was generated by ChatGPT and reviewed by the CellGuide team, who added references, and by the CL editors, who approved it for inclusion in CL. It may contain information that applies only to some subtypes and species, and so should not be considered definitional.) https://cellxgene.cziscience.com/cellguide/CL_1000320 A goblet cell that is part of the epithelium of large intestine. epithelium of large intestine