Hypomorphic Apolipoprotein E Mice
Hypomorphic Apolipoprotein E Mice
复制标题
亚形性载脂蛋白E小鼠
DOI:
--
复制
发表时间:
2002
影响因子:
4.8
通讯作者:
K. Weisgraber
中科院分区:
文献类型:
--
作者:
R. Raffaı̈;K. Weisgraber
In creating an allelic variant of mouseApoe designed to resemble human apolipoprotein E4 (apoE4), we generated hypomorphic apoE (hypoE) mice that express only ∼5% of normal apoE mRNA levels in all tissues. Insertion of aneo cassette flanked by loxP sites in the third intron of Apoe reduced expression of the Arg-61 allelic variant in hypoE mice and resulted in plasma apoE levels that were ∼2–5% of normal. Unlike other mouse models with low levels of circulating apoE, hypoE mice had a nearly normal lipoprotein cholesterol profile when fed a chow diet. Further reduction of apoE expression in hypoE/Apoe −/− heterozygous mice led to an increase in remnant lipoprotein-associated cholesterol levels, demonstrating that hypoE mice express close to the threshold level of Arg-61 apoE required for a normal lipoprotein profile. Unlike wild type mice, hypoE mice were susceptible to diet-induced hypercholesterolemia, which was fully reversed within 3 weeks after resumption of a chow diet. In Mx1-Cre transgenic hypoE mice, plasma apoE levels returned to normal within 10 days after gene repair and removal of the neo cassette following induction of Cre recombinase. HypoE mice provide the opportunity for conditional gene repair by crossing with inducible or lineage/cell type-specific Cre transgenic mice, generating new models to dissect the roles of apoE in atherosclerosis regression, immunoregulation, and neurodegeneration.
登录
查看更多内容
DOI:
10.1161/01.atv.19.12.2952
发表时间:
1999-12
期刊:
Arteriosclerosis, thrombosis, and vascular biology
影响因子:
--
作者:
Yadong Huang;Z. Ji;W. Brecht;S. C. Rall;John Taylor;R. Mahley
通讯作者:
Yadong Huang;Z. Ji;W. Brecht;S. C. Rall;John Taylor;R. Mahley
DOI:
--
发表时间:
1980
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Hui,DY;Harmony,JA;Innerarity,TL;Mahley,RW
通讯作者:
Mahley,RW
影响因子:
6.5
作者:
A. Hasty;M. Linton;L. Swift;S. Fazio
通讯作者:
A. Hasty;M. Linton;L. Swift;S. Fazio
影响因子:
6.5
作者:
Grehan, S;Allan, C;Taylor, JM
通讯作者:
Taylor, JM
DOI:
10.1161/01.atv.19.9.2162
发表时间:
1999-09
期刊:
Arteriosclerosis, thrombosis, and vascular biology
影响因子:
--
作者:
Kazuhisa Tsukamoto;R. Tangirala;Sam Chun;Ellen Puré;Daniel J. Rader
通讯作者:
Kazuhisa Tsukamoto;R. Tangirala;Sam Chun;Ellen Puré;Daniel J. Rader