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Effects of apoE genotype on macrophage inflammation and heme oxygenase-1 expression

Jofre-Monseny, L., Loboda, A., Wagner, A.E., Huebbe, P., Boesch-Saadatmandi, C., Jozkowicz, A., Minihane, A.M., Dulak, J. and Rimbach, G. (2007) Effects of apoE genotype on macrophage inflammation and heme oxygenase-1 expression. Biochemical and Biophysical Research Communications, 357 (1). pp. 319-324. ISSN 0006-291X

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To link to this item DOI: 10.1016/j.bbrc.2007.03.150


In order to gain a more comprehensive understanding of the aetiology of apolipoprotein E4 genotype-cardiovascular disease (CVD) associations, the impact of the apoE genotype on the macrophage inflammatory response was examined. The murine monocyte-macrophage cell line (RAW 264.7) stably transfected to produce equal amounts of human apoE3 or apoE4 was used. Following LPS stimulation, apoE4-macrophages showed higher and lower concentrations of tumour necrosis factor alpha (pro-inflammatory) and interleukin 10 (anti-inflammatory), respectively, both at mRNA and protein levels. In addition, increased expression of heme oxygenase-1 (a stress-induced anti-inflammatory protein) was observed in the apoE4-cells. Furthermore, in apoE4-macrophages, an enhanced transactivation of the key redox sensitive transcription factor NF-kappa B was shown. Current data indicate that apoE4 macrophages have an altered inflammatory response, which may contribute to the higher CVD risk observed in apoE4 carriers. (c) 2007 Elsevier Inc. All rights reserved.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13271
Uncontrolled Keywords:apoE genotype, macrophage, cytokines, nuclear factor kappa B, heme, oxygenase-1, tumour necrosis factor alpha, inflammation, oxidative, stress, redox signalling, APOLIPOPROTEIN-E GENOTYPE, GENE-TRANSFER, DISEASE, ATHEROSCLEROSIS, CELLS, MICE

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