Document Detail


Tissue distribution, cellular source, and structural analysis of rat immunoreactive uroguanylin.
MedLine Citation:
PMID:  9832465     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Uroguanylin, a member of the guanylin peptide family, acts on guanylyl cyclase C (GC-C) to regulate intestinal and renal fluid and electrolyte transport through the second messenger, cGMP. Using an antiserum raised against synthetic rat uroguanylin, we established an RIA and identified three endogenous molecular forms in the intestine and kidney: a 15-amino acid uroguanylin, an 18-amino acid uroguanylin that is a monobasic processing product, and a 9.4-kDa prouroguanylin. Prouroguanylin is the major molecular form in these two tissues, whereas only 15-amino-acid uroguanylin is present in the urine. Rat uroguanylin is most abundant in the proximal small intestine, its content decreasing toward the colon. Uroguanylin is present immunohistochemically in the endocrine cells in the intestine and stomach, B cells in the pancreatic islets, and tubular epithelial cells in the kidney. Uroguanylin has a widespread tissue distribution and is located in cells that function in an endocrine, paracrine, and/or luminocrine (luminal secretion) fashion. Uroguanylin may have physiological functions other than the regulation of fluid and electrolyte transport in the intestine and kidney.
Authors:
M Nakazato; H Yamaguchi; Y Date; M Miyazato; K Kangawa; M F Goy; N Chino; S Matsukura
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Endocrinology     Volume:  139     ISSN:  0013-7227     ISO Abbreviation:  Endocrinology     Publication Date:  1998 Dec 
Date Detail:
Created Date:  1998-12-24     Completed Date:  1998-12-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375040     Medline TA:  Endocrinology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  5247-54     Citation Subset:  AIM; IM    
Affiliation:
Department of Internal Medicine, Miyazaki Medical College, Kiyotake, Japan. nakazato@post.miyazaki-med.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Animals
Chromatography, Affinity
Chromatography, High Pressure Liquid
Immunohistochemistry
Intestines / cytology,  metabolism
Isomerism
Male
Molecular Sequence Data
Natriuretic Peptides
Osmolar Concentration
Peptides / chemistry*,  genetics,  isolation & purification,  metabolism*
Radioimmunoassay
Rats
Rats, Sprague-Dawley
Tissue Distribution
Urine / chemistry
Chemical
Reg. No./Substance:
0/Natriuretic Peptides; 0/Peptides; 152175-68-3/uroguanylin

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