Angiotensin II type 1 and type 2 receptor expression in circulating monocytes of diabetic and hypercholesterolemic patients over 3-month rosuvastatin treatment
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  • 作者:Franca Marino (1)
    Andrea Maria Maresca (1)
    Marco Cosentino (1)
    Luana Castiglioni (1)
    Emanuela Rasini (1)
    Christian Mongiardi (1)
    Ramona C Maio (1)
    Massimiliano Legnaro (1)
    Laura Schembri (1)
    Francesco Dentali (1)
    Anna Maria Grandi (1)
    Luigina Guasti (1)
  • 关键词:Type 2 Diabetes ; Angiotensin II type 1 receptor ; Angiotensin II type 2 receptor ; Monocytes ; Statin
  • 刊名:Cardiovascular Diabetology
  • 出版年:2012
  • 出版时间:December 2012
  • 年:2012
  • 卷:11
  • 期:1
  • 全文大小:170KB
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  • 作者单位:Franca Marino (1)
    Andrea Maria Maresca (1)
    Marco Cosentino (1)
    Luana Castiglioni (1)
    Emanuela Rasini (1)
    Christian Mongiardi (1)
    Ramona C Maio (1)
    Massimiliano Legnaro (1)
    Laura Schembri (1)
    Francesco Dentali (1)
    Anna Maria Grandi (1)
    Luigina Guasti (1)

    1. Department of Clinical and Experimental Medicine, University of Insubria, Varese, Italy
文摘
Background In diabetes, a variety of pro-inflammatory cellular changes has been found in various cell types, including monocytes which are known to be involved in all the phases of atherogenesis. Angiotensin II (Ang II) type 1 receptor (AT1R) mediates the pro-atherogenic effects of Ang II whereas the type 2 receptor (AT2R) seems associated with atheroprotection. We sought to investigate the potential changes of AT1R-AT2R expression in human monocytes of type 2 diabetic- hypercholesterolemic patients and in hypercholesterolemic subjects, upon clinical treatment with rosuvastatin. Methods The AT1R membrane protein and mRNA AT1R and AT2R expression in monocytes were investigated in 10 type 2 diabetic-hypercholesterolemic patients and in 10 hypercholesterolemic subjects, before and after 3-month rosuvastatin treatment. Moreover, the serum cytokine levels of interferon-γ (IFN-γ) and interleukin-4 (IL-4) were detected. Results As expected, rosuvastatin was associated with a change in the lipid profile in the two groups. Both the membrane protein (P--.008) and the AT1R mRNA expression (P--.038) were significantly reduced during treatment in the absence of AT2R expression change in diabetic-hypercholesterolemic patients whereas no significant difference was observed in hypercholesterolemic subjects. The serum IL-4 levels were increased during treatment whereas no change was observed in IFN-γ in diabetic-hypercholesterolemic patients. No cytokine change was observed in hypercholesterolemic subjects. Conclusions Our study on monocytes of diabetic-hypercholesterolemic patients, showing a reduced AT1R but not AT2R expression during rosuvastatin treatment, suggests that statin therapy may modulate favorably the AT1-AT2 receptor balance in subjects with coexistent type 2 diabetes.

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