Distribution and characterization of immunoreactive porcine C-type natriuretic peptide

Autor: Shuzo Ueda, Shigeru Matsukura, Kenji Kangawa, Naoto Minamino, Masahito Aburaya, Hisayuki Matsuo
Rok vydání: 1991
Předmět:
Zdroj: Biochemical and Biophysical Research Communications. 175:759-767
ISSN: 0006-291X
Popis: C-type natriuretic peptide (CNP) is a new member of the natriuretic peptide family recently identified in porcine brain (1). We raised an antiserum against porcine CNP and set up a radioimmunoassay (RIA) for CNP. Using this RIA system, distribution of immunoreactive (ir-) CNP in porcine tissue was measured and compared with that of ir-atrial natriuretic peptide (ANP) and ir-brain natriuretic peptide (BNP). Tissue concentration of ir-CNP in brain was the highest of the three natriuretic peptides at about 0.79 pmol/g wet wt. CNP was present in medulla-pons in high concentration, with a significant concentration detected in cerebellum. In contrast, ir-CNP was not detected in peripheral tissue, including heart, in a significant concentration. These data demonstrated sharp contrasts in the distribution of the three natriuretic peptides, suggesting that CNP is a natriuretic peptide functioning in the central nervous system.
Databáze: OpenAIRE