PMID- 17372317 OWN - NLM STAT- MEDLINE DCOM- 20070515 LR - 20080121 IS - 1930-7381 (Print) IS - 1930-7381 (Linking) VI - 15 IP - 3 DP - 2007 Mar TI - Monocyte chemoattractant protein-1 in obesity and type 2 diabetes. Insulin sensitivity study. PG - 664-72 AB - OBJECTIVE: Our goal was to test any association between human plasma circulating levels of monocyte chemoattractant protein-1 (cMCP-1) and insulin resistance and to compare monocyte chemoattractant protein-1 (MCP-1) adipose tissue gene expression and cMCP-1 in relation with inflammatory markers. RESEARCH METHODS AND PROCEDURES: cMCP-1 was measured in n = 116 consecutive control male subjects to whom an insulin sensitivity (S(i)) test was performed. Circulating levels of soluble CD14, soluble tumor necrosis factor receptor type 2 (sTNFR2), soluble interleukin-6 (sIL-6), and adiponectin also were measured. Subcutaneous adipose tissue samples were obtained from n = 107 non-diabetic and type 2 diabetic subjects with different degrees of obesity. Real-time polymerase chain reaction was used to measure gene expression of MCP-1, CD68, tumor necrosis factor-alpha (TNF-alpha), and its receptor TNFR2. RESULTS: In the S(i) study, no independent effect of cMCP-1 levels on insulin sensitivity was observed. In the expression study, in non-diabetic subjects, MCP-1 mRNA had a positive correlation with BMI (r = 0.407, p = 0.003), TNF-alpha mRNA (r = 0.419, p = 0.002), and TNFR2 mRNA (r = 0.410, p = 0.003). In these subjects, cMCP-1 was found to correlate with waist-to-hip ratio (r = 0.322, p = 0.048). In patients with type 2 diabetes, MCP-1 mRNA was up-regulated compared with non-diabetic subjects. TNF-alpha mRNA was found to independently contribute to MCP-1 mRNA expression. In this group, CD68 mRNA was found to correlate with BMI (r = 0.455, p = 0.001). DISCUSSION: cMCP-1 is not associated with insulin sensitivity in apparently healthy men. TNF-alpha is the inflammatory cytokine associated with MCP-1 expression in subcutaneous adipose tissue. FAU - Chacon, Matilde R AU - Chacon MR AD - Research Department, University Hospital of Tarragona Joan XXIII, Rovira i Virgili University, Pere Virgili Institute, Tarragona, Spain. FAU - Fernandez-Real, Jose Manuel AU - Fernandez-Real JM FAU - Richart, Cristobal AU - Richart C FAU - Megia, Ana AU - Megia A FAU - Gomez, Jose Manuel AU - Gomez JM FAU - Miranda, Merce AU - Miranda M FAU - Caubet, Enric AU - Caubet E FAU - Pastor, Rosa AU - Pastor R FAU - Masdevall, Carles AU - Masdevall C FAU - Vilarrasa, Nuria AU - Vilarrasa N FAU - Ricard, Wifredo AU - Ricard W FAU - Vendrell, Joan AU - Vendrell J LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Obesity (Silver Spring) JT - Obesity (Silver Spring, Md.) JID - 101264860 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (RNA, Messenger) SB - IM MH - Adult MH - Body Mass Index MH - Case-Control Studies MH - Chemokine CCL2/*blood/genetics/metabolism MH - Diabetes Mellitus, Type 2/*blood/genetics/metabolism MH - Gene Expression MH - Humans MH - Insulin Resistance/*physiology MH - Male MH - Middle Aged MH - Obesity/*blood/genetics/metabolism MH - RNA, Messenger/metabolism MH - Subcutaneous Fat/metabolism EDAT- 2007/03/21 09:00 MHDA- 2007/05/16 09:00 CRDT- 2007/03/21 09:00 PHST- 2007/03/21 09:00 [pubmed] PHST- 2007/05/16 09:00 [medline] PHST- 2007/03/21 09:00 [entrez] AID - 15/3/664 [pii] AID - 10.1038/oby.2007.578 [doi] PST - ppublish SO - Obesity (Silver Spring). 2007 Mar;15(3):664-72. doi: 10.1038/oby.2007.578.