Gut endocrine cell development.
Gut endocrine cell development.
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DOI:
10.1016/j.mce.2009.12.009
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发表时间:
2010-07-08
影响因子:
4.1
通讯作者:
Kaestner KH
中科院分区:
文献类型:
--
作者:
May CL;Kaestner KH
Endocrine cells are scattered throughout the gastrointestinal mucosa from the stomach to the colon and constitute one of the largest endocrine systems in the body. Enteroendocrine cells labeled by chromogranin A comprise about 1% of all epithelial cells in the gastrointestinal tract and are surrounded by mucus, chief, and parietal cells in the stomach, and enterocyte, goblet and Paneth cells in the intestine (Fig. 1). The enteroendocrine system consists of at least 15 different cell types that can be classified based on their main hormonal products and on the ultrastructure of their secretory granules (Rindi et al., 2004). A given enteroendocrine cell secretes one or more hormone or hormone-like substance, which is released directly into the lamina propria and diffuses into the capillaries. These hormones include gastrin, histamine, serotonin, cholecystokinin (CCK), somatostatin and glucagon-like peptides (GLP1 and GLP2)(Rindi et al., 2004). Although enteroendocrine cells are very scarce, they are essential regulators of digestion, gut motility, appetite, and metabolism.
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