PMID- 16982432 OWN - NLM STAT- MEDLINE DCOM- 20080530 LR - 20171213 IS - 1673-4254 (Print) IS - 1673-4254 (Linking) VI - 26 IP - 9 DP - 2006 Sep TI - [Modulation of inflammatory cytokines by ATP-binding cassette A1 in THP-1 macrophages]. PG - 1269-72 AB - OBJECTIVE: To observe the effects of ATP-binding cassette A1 (ABCA1) on intercellular cell adhesion molecule type 1 (ICAM-1), monocyte chemoattractant protein-1 (MCP-1) and interleukin-1beta (IL-1beta) in THP-1 macrophages stimulated with 8-Br-cAMP to identify a possible new mechanism that ABCA1 contributes to atherosclerogenesis (AS). METHODS: Monocytic THP-1 cells were cultured in the presence of 100 nmol/L phorbol myristate acetate (PMA) for 72 h to transform the cells into THP-1 macrophages. After the macrophages were stimulated with 8-Br-cAMP (final concentration 0.5 mmol/L) for 3, 6, 12 and 24 h respectively, the amounts of ABCA1, ICAM-1 and MCP-1 mRNA were examined by real-time fluorescent quantitative RT-PCR, and the protein amounts of ABCA1, ICAM-1, MCP-1 and IL-1beta were determined by Western blotting and enzyme-linked immunosorbent assay (ELISA). Phosphorothioate antisense oligonucleotides of ABCA1 were add into the culture media at a final concentration of 100 nmol/L and the experiments were repeated. RESULTS: ABCA1, ICAM-1 and MCP-1 mRNA and protein and IL-1beta protein were increased in the macrophages after stimulation with 8-Br-cAMP for 6 and 12 h. The mRNA expressions of ABCA1, ICAM-1 and MCP-1 were decreased significantly at 3 and 6 h (P<0.01), and the protein expressions of ABCA1, ICAM-1, MCP-1 and IL-1beta declined significantly at 12 and 24 h (P<0.01) after transfection of the macrophages with antisense oligonucleotides of ABCA1. CONCLUSION: ABCA1 can increase the expressions of the inflammatory cytokines in THP-1 macrophages stimulated by 8-Br-cAMP and plays a role in the pathogenesis of AS. FAU - Guo, Zhi-gang AU - Guo ZG AD - Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. guodoctor@hotmail.com FAU - Wu, Ping-sheng AU - Wu PS FAU - Li, Jian-hua AU - Li JH FAU - Lai, Wen-yan AU - Lai WY LA - chi PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Nan Fang Yi Ke Da Xue Xue Bao JT - Nan fang yi ke da xue xue bao = Journal of Southern Medical University JID - 101266132 RN - 0 (ABCA1 protein, human) RN - 0 (ATP Binding Cassette Transporter 1) RN - 0 (ATP-Binding Cassette Transporters) RN - 0 (Chemokine CCL2) RN - 0 (Interleukin-1beta) RN - 0 (RNA, Messenger) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - 23583-48-4 (8-Bromo Cyclic Adenosine Monophosphate) RN - NI40JAQ945 (Tetradecanoylphorbol Acetate) SB - IM MH - 8-Bromo Cyclic Adenosine Monophosphate/pharmacology MH - ATP Binding Cassette Transporter 1 MH - ATP-Binding Cassette Transporters/biosynthesis/*genetics MH - Cell Line MH - Chemokine CCL2/genetics/metabolism MH - Enzyme-Linked Immunosorbent Assay MH - Humans MH - Intercellular Adhesion Molecule-1/*genetics/metabolism MH - Interleukin-1beta/genetics/metabolism MH - Macrophages/cytology/drug effects/*metabolism MH - Monocytes/cytology/drug effects/metabolism MH - RNA, Messenger/genetics/metabolism MH - Reverse Transcriptase Polymerase Chain Reaction MH - Tetradecanoylphorbol Acetate/pharmacology EDAT- 2006/09/20 09:00 MHDA- 2008/05/31 09:00 CRDT- 2006/09/20 09:00 PHST- 2006/09/20 09:00 [pubmed] PHST- 2008/05/31 09:00 [medline] PHST- 2006/09/20 09:00 [entrez] PST - ppublish SO - Nan Fang Yi Ke Da Xue Xue Bao. 2006 Sep;26(9):1269-72.