Gastric chief cell

A gastric chief cell (or peptic cell, or gastric zymogenic cell) is a type of gastric gland cell that releases pepsinogen and gastric lipase and is the cell responsible for secretion of chymosin in ruminants.[1] The cell stains basophilic upon H&E staining due to the large proportion of rough endoplasmic reticulum in its cytoplasm. Gastric chief cells are generally located deep in the mucosal layer of the stomach lining.

Chief cell
Human chief cells near tip of RED pointer
Details
Part ofStomach
SystemDigestive system
Identifiers
Latinexocrinocytus principalis
MeSHD019872
THH3.04.02.1.00031
FMA62902
Anatomical terminology

Chief cells release the zymogen (enzyme precursor) pepsinogen when stimulated by a variety of factors including cholinergic activity from the vagus nerve and acidic condition in the stomach. Gastrin and secretin may also act as secretagogues.[2]

It works in conjunction with the parietal cell, which releases gastric acid, converting the pepsinogen into pepsin.

Nomenclature

The terms chief cell and zymogenic cell are often used without the word "gastric" to name this type of cell. However those terms can also be used to describe other cell types (for example, parathyroid chief cells). Chief cells are also known as peptic cells.

See also

References
  1. Kitamura N, Tanimoto A, Hondo E, Andrén A, Cottrell DF, Sasaki M, Yamada J (2001). "Immunohistochemical study of the ontogeny of prochymosin--and pepsinogen-producing cells in the abomasum of sheep". Anatomia, Histologia, Embryologia: Journal of Veterinary Medicine Series C. 30 (4): 231–235. doi:10.1046/j.1439-0264.2001.00326.x. PMID 11534329. S2CID 7552821.
  2. Johnson, Leonard R. (2001). Gastrointestinal Physiology. ISBN 0323012396.
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