SIRT1 decreases Lox-1-mediated foam cell formation in atherogenesis.
SIRT1 decreases Lox-1-mediated foam cell formation in atherogenesis.
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DOI:
10.1093/eurheartj/ehq107
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发表时间:
2010-09
影响因子:
39.3
通讯作者:
Matter CM
中科院分区:
文献类型:
--
作者:
Stein S;Lohmann C;Schäfer N;Hofmann J;Rohrer L;Besler C;Rothgiesser KM;Becher B;Hottiger MO;Borén J;McBurney MW;Landmesser U;Lüscher TF;Matter CM
Endothelial activation, macrophage infiltration, and foam cell formation are pivotal steps in atherogenesis. Our aim in this study was to analyse the role of SIRT1, a class III deacetylase with important metabolic functions, in plaque macrophages and atherogenesis. Using partial SIRT1 deletion in atherosclerotic mice, we demonstrate that SIRT1 protects against atherosclerosis by reducing macrophage foam cell formation. Peritoneal macrophages from heterozygous SIRT1 mice accumulate more oxidized low-density lipoprotein (oxLDL), thereby promoting foam cell formation. Bone marrow-restricted SIRT1 deletion confirmed that SIRT1 function in macrophages is sufficient to decrease atherogenesis. Moreover, we show that SIRT1 reduces the uptake of oxLDL by diminishing the expression of lectin-like oxLDL receptor-1 (Lox-1) via suppression of the NF-κB signalling pathway. Our findings demonstrate protective effects of SIRT1 in atherogenesis and suggest pharmacological SIRT1 activation as a novel anti-atherosclerotic strategy by reducing macrophage foam cell formation.
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影响因子:
9.9
作者:
Cheong, Raymond;Hoffmann, Alexander;Levchenko, Andre
通讯作者:
Levchenko, Andre
影响因子:
9.8
作者:
Bordone L;Motta MC;Picard F;Robinson A;Jhala US;Apfeld J;McDonagh T;Lemieux M;McBurney M;Szilvasi A;Easlon EJ;Lin SJ;Guarente L
通讯作者:
Guarente L
DOI:
10.1152/ajpheart.00382.2002
发表时间:
2002-11-01
影响因子:
4.8
作者:
Li, DY;Williams, V;Mehta, JL
通讯作者:
Mehta, JL
影响因子:
20.1
作者:
Mehta, Jawahar L.;Sanada, Nobuhito;Sawamura, Tatsuya
通讯作者:
Sawamura, Tatsuya
影响因子:
37.8
作者:
Li, DY;Liu, L;Mehta, JL
通讯作者:
Mehta, JL