Aims: Atherosclerosis is an inﬂammator y disease which molecular mechanisms are not been completely investigated. Our aim is to perform a wide expression study of inﬂammation related genes in human atherosclerotic plaques. Methods: The Human Inﬂammation Array (Applied Biosystems) was used to perform the mRNA quantiﬁcation of 92 inﬂammation-related genes in 12 atherosclerotic plaques, their respective adjacent regions (with a lower grade lesion) and 7 healthy ar teries. The principle of the array is the real-time PCR ampliﬁcation with a TaqMan probe speciﬁc for each gene. Data analysis was performed with SDS 2.3 software with the comparative Ct method using the gene beta-2-microglobulin as housekeeping and one of analysed samples as calibrator. Results: The mRNA levels of 42 genes result to be differently expressed:13 genes were up-regulated in atherosclerotic plaques respect to control ar teries whereas 29 were down-regulated. Their expression levels show an increasing or a decreasing trend from healthy ar teries to plaque adjacent regions and to advanced plaques. These genes belong to many different functional classes. In particular, we observed the dys-regulation of genes encoding for enzymes involved in the arachidonic acid metabolism that lead to generation of prostaglandins and leukotrienes. Conclusions: This is the ﬁrst study in which the expression of a wide panel of inﬂammation-related genes was investigated. Results clarify the mechanisms of inﬂammation involvement during atherosclerotic process and highlight newpossible target for anti-inﬂammator y therapy in cardiovascular disease.
|Number of pages||1|
|Publication status||Published - 2010|