Abstract:
:C-type natriuretic peptide (CNP), which was recently found to be a selective ligand for one of the two known natriuretic peptide receptor guanylyl cyclases (NPR-B), potently stimulates cGMP production in cultured rat vascular smooth muscle cells (VSMC) and exerts potent antiproliferative effects on the cells. To investigate the structural requirements of CNP for stimulation of cGMP accumulation via NPR-B, we prepared CNP analogs and tested them on cultured rat VSMC. Our results indicate that only the ring portion of CNP with a disulfide bond (CNP(6-22)) participates in stimulation of cGMP accumulation, especially the sequence Leu9-Lys10-Leu11 in the ring portion executes essential roles for both elevation of cGMP and selectivity of the ligand for NPR-B. We also found a good correlation between the activities of the CNP analogs for stimulation of cGMP accumulation and inhibition of DNA synthesis.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Furuya M,Tawaragi Y,Minamitake Y,Kitajima Y,Fuchimura K,Tanaka S,Minamino N,Kangawa K,Matsuo Hdoi
10.1016/s0006-291x(05)80284-0subject
Has Abstractpub_date
1992-03-31 00:00:00pages
964-9issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(05)80284-0journal_volume
183pub_type
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