PMID- 18339698 OWN - NLM STAT- MEDLINE DCOM- 20080616 LR - 20190722 IS - 0009-9147 (Print) IS - 0009-9147 (Linking) VI - 54 IP - 5 DP - 2008 May TI - Tissue factor and monocyte chemoattractant protein-1 expression in hypertensive individuals with normal or increased carotid intima-media wall thickness. PG - 814-23 LID - 10.1373/clinchem.2007.095547 [doi] AB - BACKGROUND: People with hypertension display an inflammatory pattern that includes increased plasma concentrations of monocyte chemoattractant protein 1 (MCP-1) and C-reactive protein (CRP) and enhanced expression of tissue factor (TF) mRNA in blood monocytes. METHODS: In this study, we investigated the relationship between CRP concentrations and TF and MCP-1 mRNA expression in unstimulated and lipopolysaccharide (LPS)-stimulated monocytes isolated from hypertensives with or without an increase in carotid intima-media thickness (IMT). We also investigated the expression of TF and MCP-1 mRNA and MCP-1 protein after in vitro addition of CRP to monocytes. We measured CRP (by immunonephelometry) and monocyte expression of TF and MCP-1 (by real-time PCR) in 80 untreated hypertensive patients without clinical cardiovascular disease (CVD) or additional risk factors for CVD compared with 41 controls. Based on IMT measured by carotid Doppler ultrasonography, patients were classified into the categories of normal (< or =1 mm) or abnormal (>1 mm). TF and MCP-1 mRNA and MCP-1 protein (by Western blotting) were measured after in vitro addition of CRP to monocytes from 10 randomized controls as well as 10 hypertensives with IMT < or =1 mm and 10 with IMT >1 mm. RESULTS: CRP and TF and MCP-1 mRNA concentrations were significantly higher in IMT >1 mm hypertensives vs those with IMT < or =1 mm and controls. CRP had no effect on monocyte TF mRNA from either hypertensives or controls. CRP-stimulated monocytes from hypertensives, however, showed increased MCP-1 mRNA and protein expression compared with controls and LPS-stimulated cells. CONCLUSIONS: Our findings suggest that the inflammatory response of blood monocytes plays an important role in the development of atherosclerosis and hypertension. FAU - Sardo, Maria A AU - Sardo MA AD - Department of Internal Medicine, University of Messina, Messina, Italy. FAU - Campo, Salvatore AU - Campo S FAU - Mandraffino, Giuseppe AU - Mandraffino G FAU - Saitta, Carlo AU - Saitta C FAU - Bonaiuto, Antonio AU - Bonaiuto A FAU - Castaldo, Maria AU - Castaldo M FAU - Cinquegrani, Maurizio AU - Cinquegrani M FAU - Pizzimenti, Giovanni AU - Pizzimenti G FAU - Saitta, Antonino AU - Saitta A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080313 PL - England TA - Clin Chem JT - Clinical chemistry JID - 9421549 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Lipopolysaccharides) RN - 9007-41-4 (C-Reactive Protein) RN - 9035-58-9 (Thromboplastin) SB - IM MH - Adult MH - C-Reactive Protein/metabolism MH - Carotid Arteries/diagnostic imaging/*pathology MH - Carotid Artery, Common/diagnostic imaging/pathology MH - Carotid Artery, Internal/diagnostic imaging/pathology MH - Carotid Stenosis/complications/diagnostic imaging/metabolism MH - Cells, Cultured MH - Chemokine CCL2/*biosynthesis/genetics MH - Female MH - Humans MH - Hypertension/complications/*metabolism/pathology MH - Lipopolysaccharides/pharmacology MH - Male MH - Monocytes/drug effects/metabolism MH - Thromboplastin/*biosynthesis/genetics MH - Tunica Intima/diagnostic imaging/*pathology MH - Tunica Media/diagnostic imaging/*pathology MH - Ultrasonography EDAT- 2008/03/15 09:00 MHDA- 2008/06/17 09:00 CRDT- 2008/03/15 09:00 PHST- 2008/03/15 09:00 [pubmed] PHST- 2008/06/17 09:00 [medline] PHST- 2008/03/15 09:00 [entrez] AID - clinchem.2007.095547 [pii] AID - 10.1373/clinchem.2007.095547 [doi] PST - ppublish SO - Clin Chem. 2008 May;54(5):814-23. doi: 10.1373/clinchem.2007.095547. Epub 2008 Mar 13.