PMID- 17961438 OWN - NLM STAT- MEDLINE DCOM- 20090811 LR - 20181201 IS - 0253-3758 (Print) IS - 0253-3758 (Linking) VI - 35 IP - 7 DP - 2007 Jul TI - [Atorvastatin inhibits scavenger receptor A and monocyte chemoattractant protein-1 expressions in foam cell]. PG - 666-9 AB - OBJECTIVE: To investigate the effects of atorvastatin on expressions of scavenger receptor A and secretion of monocyte chemoattractant protein-1 (MCP-1) in foam cells. METHODS: THP-1 cells were induced to differentiate into macrophages by PMA and treated with 0.1% BSA (control), ox-LDL (100 mg/L) or ox-LDL plus atorvastatin (5, 10, 20 micromol/L) for 24 hours. MCP-1 concentration in cell substratum was measured by ELISA. Scavenger receptor A expression was observed under fluorescent microscope after incubated with DiI-Ac-LDL. The relationship between concentration of MCP-1 and the activity of scavenger receptor A was also analyzed. RESULTS: Compared to the control cells, MCP-1 concentration in ox-LDL treated cells was significantly increased after 6 hours, peaked at 12 hours and was still significantly increased after 24 hours (all P < 0.05 vs. baseline). The activity of scavenger receptor A was also significantly increased in ox-LDL treated cells (P < 0.01 vs. control). The activity of scavenger receptor A proteins correlated positively to the concentration of MCP-1 in ox-LDL treated cells (r = 0.683, P < 0.01). Atorvastatin significantly attenuated these changes in a dose-dependent manner. CONCLUSIONS: Scavenger receptor A and MCP-1 expressions were significantly increased in the course of monocyte lines THP-1 differentiating into macrophages and foam cells. The anti-atherosclerosis effect of atorvastatin might be partly achieved by inhibiting the secretion of MCP-1 and expression of scavenger receptor A in foam cells. FAU - Zhu, Gui-yue AU - Zhu GY AD - Department of Cardiology, Shandong Provincial Hospital, Shandong University, Jinan 250021, China. zgymd@163.com FAU - Zhu, Xing-lei AU - Zhu XL FAU - Li, Ren-tiao AU - Li RT FAU - Liu, Tong-bao AU - Liu TB FAU - Shang, De-ya AU - Shang DY FAU - Zhang, Yun AU - Zhang Y LA - chi PT - Journal Article PL - China TA - Zhonghua Xin Xue Guan Bing Za Zhi JT - Zhonghua xin xue guan bing za zhi JID - 7910682 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Heptanoic Acids) RN - 0 (Pyrroles) RN - 0 (Scavenger Receptors, Class A) RN - A0JWA85V8F (Atorvastatin) SB - IM MH - Atorvastatin MH - Cell Differentiation MH - Cell Line MH - Chemokine CCL2/*metabolism MH - Foam Cells/cytology/*drug effects/metabolism MH - Heptanoic Acids/*pharmacology MH - Humans MH - Monocytes/cytology/drug effects/metabolism MH - Pyrroles/*pharmacology MH - Scavenger Receptors, Class A/*metabolism EDAT- 2007/10/27 09:00 MHDA- 2009/08/12 09:00 CRDT- 2007/10/27 09:00 PHST- 2007/10/27 09:00 [pubmed] PHST- 2009/08/12 09:00 [medline] PHST- 2007/10/27 09:00 [entrez] PST - ppublish SO - Zhonghua Xin Xue Guan Bing Za Zhi. 2007 Jul;35(7):666-9.