Genetic Dissection of the Impact of miR-33a and miR-33b during the Progression of Atherosclerosis.
Genetic Dissection of the Impact of miR-33a and miR-33b during the Progression of Atherosclerosis.
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DOI:
10.1016/j.celrep.2017.10.023
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发表时间:
2017-10-31
期刊:
影响因子:
8.8
通讯作者:
Fernández-Hernando C
中科院分区:
文献类型:
--
作者:
Price NL;Rotllan N;Canfrán-Duque A;Zhang X;Pati P;Arias N;Moen J;Mayr M;Ford DA;Baldán Á;Suárez Y;Fernández-Hernando C
As an important regulator of macrophage cholesterol efflux and HDL biogenesis, miR-33 is a promising target for treatment of atherosclerosis, and numerous studies demonstrate that inhibition of miR-33 increases HDL levels and reduces plaque burden. However, important questions remain about how miR-33 impacts atherogenesis, including whether this protection is primarily due to direct effects on plaque macrophages, or regulation of lipid metabolism in the liver. We demonstrate that miR-33 deficiency in Ldlr−/− mice promotes obesity, insulin-resistance and hyperlipidemia, but does not impact plaque development. We further assess how loss of miR-33 or addition of miR-33b in macrophages and other hematopoietic cells impact atherogenesis. Macrophage-specific loss of miR-33 decreases lipid accumulation and inflammation under hyperlipidemic conditions, leading to reduced plaque burden. Therefore, the pro-atherogenic effects observed in miR-33 deficient mice are likely counterbalanced by protective effects in macrophages, which may be the primary mechanism through which anti-miR-33 therapies reduce atherosclerosis.
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影响因子:
20.1
作者:
Karunakaran D;Thrush AB;Nguyen MA;Richards L;Geoffrion M;Singaravelu R;Ramphos E;Shangari P;Ouimet M;Pezacki JP;Moore KJ;Perisic L;Maegdefessel L;Hedin U;Harper ME;Rayner KJ
通讯作者:
Rayner KJ
影响因子:
13.5
作者:
Li, Tiangang;Francl, Jessica M.;Boehme, Shannon;Chiang, John Y. L.
通讯作者:
Chiang, John Y. L.
DOI:
10.1126/science.1189123
发表时间:
2010-06-18
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Najafi-Shoushtari SH;Kristo F;Li Y;Shioda T;Cohen DE;Gerszten RE;Näär AM
通讯作者:
Näär AM
影响因子:
4.8
作者:
Gerin, Isabelle;Clerbaux, Laure-Alix;Bommer, Guido T.
通讯作者:
Bommer, Guido T.
影响因子:
4.6
作者:
Horie T;Nishino T;Baba O;Kuwabara Y;Nakao T;Nishiga M;Usami S;Izuhara M;Nakazeki F;Ide Y;Koyama S;Sowa N;Yahagi N;Shimano H;Nakamura T;Hasegawa K;Kume N;Yokode M;Kita T;Kimura T;Ono K
通讯作者:
Ono K