title: Resveratrol in Chlamydia pneumoniae-induced foam cell formation and interleukin-17A synthesis.
abstract: The involvement of Chlamydia pneumoniae in the pathogenesis of atherosclerosis has been suggested by numerous seroepidemiological, in vivo and in vitro studies. In particular, it has been shown that C. pneumoniae is able to promote the accumulation of low-density lipoproteins into macrophages, thus facilitating foam cell formation. The aim of our study was to investigate the effects of resveratrol on macrophage derived foam cell formation induced by C. pneumoniae, examining its underlying biochemical mechanisms. Our results showed a relevant decrease in the number of foam cells, in the production of thiobarbituric acid reactive substances, superoxide anion and IL 17A while treating C. pneumoniae infected macrophages with resveratrol. Furthermore, the inhibition of Peroxisome Proliferator-Activated Receptors gamma by a specific antagonist (GW 9662), in presence of resveratrol and C. pneumoniae, enhanced intracellular lipid and cholesterol accumulation and the subsequent foam cell formation. In conclusion, the main result of our study is the evidence of an antiatherogenic effect of resveratrol on macrophage-derived foam cell formation and IL-17A production induced by C. pneumoniae.
authors.affiliation: Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Di Pietro
authors.forename: F
authors.initials: F
authors.lastname: De Santis
authors.forename: G
authors.initials: G
authors.lastname: Schiavoni
authors.forename: S
authors.initials: S
authors.lastname: Filardo
authors.forename: R
authors.initials: R
authors.lastname: Sessa
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D016993:Chlamydophila pneumoniae / Q000472:pathogenicity*; D005487:Foam Cells / Q000187:drug effects* / Q000502:physiology; D020381:Interleukin-17 / Q000096:biosynthesis*; D008077:Lipoproteins, LDL / Q000378:metabolism; D051379:Mice; D047495:PPAR gamma / Q000502:physiology; D000077185:Resveratrol; D013267:Stilbenes / Q000494:pharmacology*; D013481:Superoxides / Q000378:metabolism
chemical_list: D020381:Interleukin-17; D008077:Lipoproteins, LDL; D047495:PPAR gamma; D013267:Stilbenes; C099252:oxidized low density lipoprotein; D013481:Superoxides; D000077185:Resveratrol