Immunohistochemical localization of angiotensin II in the mouse pancreas
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AbstractPrevious studies have suggested the presence of a tissue renin-angiotensin II system in the pancreas. These studies were based on the observation of several key components of the renin-angiotensin II system using molecular biological, biochemical and pharmacological approaches. In the present study, angiotensin II was localized immunohistochemically in the mouse pancreas using an indirect immunoperoxidase-staining technique. The results showed that angiotensin II-like immunoreactivity was localized predominantly in the endothelial cells of pancreatic blood vessels and the epithelial cells of pancreatic ducts from a subgroup of the vessels and ducts. Compared with those found in the pancreatic blood vessels and ductal system, a less pronounced immunoreactivity for angiotensin II was also observed in the acinar cells and in the smooth muscle layers overlying the pancreatic ducts as well as the blood vessels. However, no angiotensin II-like immunoreactivity was detected in the islet cells. Taken together with previous findings, the present results suggest a local angiotensin II-forming system in the mouse pancreas, which may be a significant autocrine or paracrine modulator of diverse pancreatic functions, including regulation of pancreatic blood flow and pancreatic anion secretion. (C) 1998 Chapman & Hall.
All Author(s) ListLeung PS, Chan HC, Wong PYD
Journal nameHistochemical Journal
Volume Number30
Issue Number1
Pages21 - 25
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesCell Biology

Last updated on 2020-12-07 at 03:50