三磷酸腺苷结合盒转运体G1(ABCG1)是近年来发现的一种介导胆固醇和磷脂流出的整合膜蛋白半转运体,是三磷酸腺苷结合盒转运体超家族成员。ABCG1与三磷酸腺苷结合盒转运体A1(ABCA1)在介导胆固醇和磷脂流出至高密度脂蛋白(HDL)中起协同作用。ABCG1的表达主要受肝X受体/维甲酸X受体(LXR/RXR)系统调节。尽管ABCG1在平衡胆固醇和磷脂中有重要作用,但在动物实验中,ABCG1在动脉粥样硬化疾病中的作用具有争议。本文从ABCG1的结构、功能、调节及其在动脉粥样硬化疾病中的作用做一综述。
ATP binding cassette transporter G1 (ABCG1) is a membrane half-transporter which is the member of ATP-binding cassette (ABC) transporter super-family, it has an important role of regulating the cholesterol and phospholipids effluence. ABCG1 and ABCA1 synergize to mediate cholesterol effluence to HDL( high density lipoprotein). The expression of ABCG1 is mainly regulated by the liver X receptor/the lactoehrome receptor system (LXR/RXR). Although the ABCG1 plays an important role in balancing the lipids, its role in cardiovascular disease (CVD) in the animal studies is still controversial. The issue focuses the ABCG1 on the structure, the function, the regulation and the contribution to CVD.