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Une cellule entérochromaffine (ou cellule ECL, pour cellule enterochromaffine-like) est une cellule du tube digestif qui contient des monoamines (comme la sérotonine, par exemple).
- Enterochromaffin cell
Enterochromaffin (EC) cells (also known as Kulchitsky cells)...
- Enterochromaffin-like cell
Enterochromaffin-like cells or ECL cells are a type of...
- Enterochromaffin cell
Enterochromaffin (EC) cells (also known as Kulchitsky cells) are a type of enteroendocrine cell, and neuroendocrine cell. They reside alongside the epithelium lining the lumen of the digestive tract and play a crucial role in gastrointestinal regulation, particularly intestinal motility and secretion. [1]
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There are two types of cells that originate from the neural crest and are related to the sympathetic nervous system (originate from a cell called sympathogonia): 1) Neuroblasts: These cells migrate, during the fourth to the fifth week of fetal development in humans, on both sides of the spinal cord toward the region just behind the dorsal aorta for...
Chromaffin cells of the adrenal medulla are innervated by the splanchnic nerve and secrete adrenaline (epinephrine), noradrenaline (norepinephrine), some dopamine, enkephalin and enkephalin-containing peptides, and a few other hormones into the blood stream. The secreted adrenaline and noradrenaline play an important role in the sympathetic nervous...
Neoplasms arising from these cells are pheochromocytomas (also called chromaffin or sympathetic paragangliomas, in contrast to non-chromaffin or parasympathetic paragangliomasof glomus cells). Sometimes only neoplasms of adrenal origin are named pheochromocytomas, while others are named extra-adrenal paragangliomas.
The word "chromaffin" comes from a portmanteau of chromium and affinity. They are named as such because they can be visualised by staining with chromium salts. Chromium salts oxidise and polymerise catecholaminesto form a brown color, most strongly in the cells secreting noradrenaline. Chromaffin cells are also called pheochromocytes. The enterochr...
Enterochromaffin-like cells or ECL cells are a type of neuroendocrine cell found in the gastric glands of the gastric mucosa beneath the epithelium, in particular in the vicinity of parietal cells, that aid in the production of gastric acid via the release of histamine.
Jun 29, 2017 · Serotonergic enterochromaffin (EC) cells are proposed to fulfill this role by acting as chemosensors, but understanding how these rare and unique cell types transduce chemosensory information to the nervous system has been hampered by their paucity and inaccessibility to single-cell measurements.
- Nicholas W. Bellono, James R. Bayrer, Duncan B. Leitch, Joel Castro, Joel Castro, Chuchu Zhang, Trac...
- 2017
Enterochromaffin (EC) cells, a subtype of entero-endocrine cells in the GI tract, store and release 5-HT in response to both mechanical and chemical stimuli. The released 5-HT can then activate 5-HT 3 receptors on spinal afferent nerves and transmit nociceptive signals to the spinal cord.
People also ask
What are enterochromaffin cells?
Are serotonergic enterochromaffin cells chemosensors?
Can gut epithelial enterochromaffin cells sense luminal metabolites?
How do enterochromaffin-like cells secrete histamine?
Jul 5, 2017 · A new study published in Cell provides a remarkably detailed characterization of gut epithelial enterochromaffin cells (ECs), showing that they are able to sense luminal metabolites, irritants...
