PMID- 15253109 OWN - NLM STAT- MEDLINE DCOM- 20040914 LR - 20191026 IS - 0916-9636 (Print) IS - 0916-9636 (Linking) VI - 27 IP - 6 DP - 2004 Jun TI - Dual effects of endothelin-1 (1-31): induction of mesangial cell migration and facilitation of monocyte recruitment through monocyte chemoattractant protein-1 production by mesangial cells. PG - 433-40 AB - We previously found that human chymase selectively cleaves big endothelin-1 (ET-1) at the Tyr31-Gly32 bond and produces 31-amino acid endothelins, ET-1 (1-31), without any further degradation products. In this study, we investigated the effect of ET-1 (1-31) on the migration of cultured rat mesangial cells (RMCs) and on cells of the human monocytic cell line, THP-1. In addition, we examined the interaction between RMCs and THP-1 cells using conditioned media from ET-1 (1-31)-stimulated RMCs. ET-1 (1-31) caused an increase in RMC migration in a concentration-dependent manner, and the degree of increase was similar to those by ET-1 and angiotensin II (All). The ET-1 (1-31)-induced increase in RMC migration was inhibited by BQ123, an endothelin ETA receptor antagonist, but not by BQ788, an endothelin ETB receptor antagonist. ET-1 (1-31) alone did not cause significant migration of THP-1 cells. However, significant recruitment of THP-1 cells was observed with conditioned media taken from ET-1 (1-31)-stimulated RMCs. The conditioned media-induced migration of THP-1 cells was inhibited by BQ123, but not by BQ788. Western blotting analysis of the lysate of RMCs revealed that the expression of monocyte chemoattractant protein-1 (MCP-1) protein in RMCs was increased by treatment with ET-1 (1-31). The addition of neutralizing antibody for MCP-1 to the medium inhibited the migration of THP-1 cells induced by conditioned media from ET-1 (1-31)-stimulated RMCs. These findings suggest that ET-1 (1-31) play a role in glomerulonephritis (GN) via dual effects that directly cause the migration of mesangial cells (MCs) and may be responsible for the recruitment of mononuclear cells mediated through the activation of MCs. Since human chymase has been reported to be involved in glomerular disease, ET-1 (1-31) may be among the mediators. FAU - Ishizawa, Keisuke AU - Ishizawa K AD - Department of Pharmacology, University of Tokushima School of Medicine, Japan. FAU - Yoshizumi, Masanori AU - Yoshizumi M FAU - Tsuchiya, Koichiro AU - Tsuchiya K FAU - Houchi, Hitoshi AU - Houchi H FAU - Minakuchi, Kazuo AU - Minakuchi K FAU - Izawa, Yuki AU - Izawa Y FAU - Kanematsu, Yasuhisa AU - Kanematsu Y FAU - Kagami, Shoji AU - Kagami S FAU - Hirose, Masao AU - Hirose M FAU - Tamaki, Toshiaki AU - Tamaki T LA - eng PT - Journal Article PL - England TA - Hypertens Res JT - Hypertension research : official journal of the Japanese Society of Hypertension JID - 9307690 RN - 0 (Antibodies) RN - 0 (Antihypertensive Agents) RN - 0 (Chemokine CCL2) RN - 0 (Culture Media, Conditioned) RN - 0 (Endothelin-1) RN - 0 (Peptide Fragments) RN - 0 (Peptides, Cyclic) RN - 0 (endothelin-1 (1-31)) RN - S2A8YZM151 (cyclo(Trp-Asp-Pro-Val-Leu)) SB - IM MH - Animals MH - Antibodies/pharmacology MH - Antihypertensive Agents/pharmacology MH - Cell Movement/*drug effects MH - Cells, Cultured MH - Chemokine CCL2/immunology/*metabolism MH - Culture Media, Conditioned/pharmacology MH - Endothelin-1/*analogs & derivatives/*pharmacology MH - Glomerular Mesangium/*cytology/*drug effects/metabolism MH - Peptide Fragments/*pharmacology MH - Peptides, Cyclic/pharmacology MH - Rats MH - Rats, Sprague-Dawley EDAT- 2004/07/16 05:00 MHDA- 2004/09/15 05:00 CRDT- 2004/07/16 05:00 PHST- 2004/07/16 05:00 [pubmed] PHST- 2004/09/15 05:00 [medline] PHST- 2004/07/16 05:00 [entrez] AID - 10.1291/hypres.27.433 [doi] PST - ppublish SO - Hypertens Res. 2004 Jun;27(6):433-40. doi: 10.1291/hypres.27.433.