PMID- 11124596 OWN - NLM STAT- MEDLINE DCOM- 20010202 LR - 20171101 IS - 1660-8151 (Print) IS - 1660-8151 (Linking) VI - 86 IP - 4 DP - 2000 Dec TI - C-Type natriuretic peptide inhibits proliferation and monocyte chemoattractant protein-1 secretion in cultured human mesangial cells. PG - 467-72 AB - BACKGROUND: Mesangial cell proliferation and matrix accumulation are hallmarks of various progressive glomerular diseases. We examined whether C-type natriuretic peptide (CNP) that is known to regulate the proliferation of vascular smooth muscle cells could modulate these pathological processes using human glomerular mesangial cells (GMCs) in culture. METHODS: Proliferation of GMCs cultured with different concentrations of CNP-22 for 48 h was determined by a colorimetric assay using a tetrazolium salt. Monocyte chemoattractant protein-1 (MCP-1) and type IV collagen secretion into the culture media by GMCs in the presence or absence of CNP-22 were evaluated by ELISA. Expression of mRNA for natriuretic peptide receptor B (NPR-B), a specific receptor for CNP, was examined by reverse transcription polymerase chain reaction (RT-PCR). RESULTS: CNP-22 (1-10 microM) inhibited serum-induced GMC growth in a dose-dependent manner. The amount of MCP-1 in the culture supernatant was increased approximately 2.4-fold by 5 microg/ml of lipopolysaccharide. This increase was inhibited by CNP-22 at 0.1-1 microM in a dose-dependent fashion. CNP-22 (10 microM) inhibited GMC type IV collagen secretion stimulated by 20 ng/ml of platelet-derived growth factor. Expression of NPR-B mRNA was confirmed in GMCs by RT-PCR. CONCLUSIONS: CNP suppresses GMC proliferation and MCP-1 and type IV collagen secretion by GMCs. It may have a therapeutic potential against human proliferative glomerular diseases, especially those with the involvement of monocytes. FAU - Osawa, H AU - Osawa H AD - Second Department of Internal Medicine, Hirosaki University School of Medicine, Hirosaki, Japan. osawa@cc.hirosaki-u.ac.jp FAU - Yamabe, H AU - Yamabe H FAU - Kaizuka, M AU - Kaizuka M FAU - Tamura, N AU - Tamura N FAU - Tsunoda, S AU - Tsunoda S FAU - Baba, Y AU - Baba Y FAU - Shirato, K AU - Shirato K FAU - Tateyama, F AU - Tateyama F FAU - Okumura, K AU - Okumura K LA - eng PT - Journal Article PL - Switzerland TA - Nephron JT - Nephron JID - 0331777 RN - 0 (Chemokine CCL2) RN - 0 (Culture Media) RN - 0 (RNA, Messenger) RN - 127869-51-6 (Natriuretic Peptide, C-Type) RN - 9007-34-5 (Collagen) RN - EC 4.6.1.2 (Receptors, Atrial Natriuretic Factor) SB - IM MH - Cell Division/drug effects MH - Cells, Cultured MH - Chemokine CCL2/biosynthesis/genetics/*metabolism MH - Collagen/metabolism MH - Culture Media/analysis MH - Depression, Chemical MH - Glomerular Mesangium/*cytology/drug effects/*metabolism MH - Humans MH - Natriuretic Peptide, C-Type/*pharmacology MH - RNA, Messenger/biosynthesis MH - Receptors, Atrial Natriuretic Factor/genetics/metabolism MH - Reverse Transcriptase Polymerase Chain Reaction EDAT- 2000/12/22 11:00 MHDA- 2001/03/03 10:01 CRDT- 2000/12/22 11:00 PHST- 2000/12/22 11:00 [pubmed] PHST- 2001/03/03 10:01 [medline] PHST- 2000/12/22 11:00 [entrez] AID - 45836 [pii] AID - 10.1159/000045836 [doi] PST - ppublish SO - Nephron. 2000 Dec;86(4):467-72. doi: 10.1159/000045836.