SREBPs: physiology and pathophysiology of the SREBP family

被引:163
作者
Shimano, Hitoshi [1 ]
机构
[1] Univ Tsukuba, Grad Sch Comprehens Human Sci, Dept Internal Med Endocrinogl & Metab, Tsukuba, Ibaraki 3058575, Japan
关键词
cholesterol; diabetes; dyslipidemia; fatty acids; fatty liver; insulin resistance; lipotoxicity; metabolic syndrome; SREBP; trigylcerides; ELEMENT-BINDING PROTEIN-1; POLYUNSATURATED FATTY-ACIDS; RENAL LIPID-METABOLISM; DEPENDENT KINASE INHIBITOR; LIPOGENIC GENE-EXPRESSION; BETA-CELL DYSFUNCTION; TRANSCRIPTION FACTOR; INSULIN-SECRETION; SYNTHASE EXPRESSION; ADIPOCYTE DIFFERENTIATION;
D O I
10.1111/j.1742-4658.2008.06806.x
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Sterol regulatory element-binding proteins (SREBPs) have been established as physiological regulators of lipid synthesis. The molecular mechanisms by which cellular sterol balance and nutritional states regulate SREBP activities are the current research focus of this field. Meanwhile, it has been shown that overnutrition or disturbed energy balance causes accumulation of tissue lipids, leading to metabolic disorders, often referred to as 'lipotoxicity'. In this overview, I discuss the pathological aspects of SREBPs, which contribute to lipotoxicity in a wide variety of organs, including hepatic insulin resistance in hepatosteatosis, impaired insulin secretion in pancreatic beta-cells, diabetic nephropathy, cardiac arrythmiasis, and obesity.
引用
收藏
页码:616 / 621
页数:6
相关论文
共 49 条
[1]   Cdk1/cyclin B-mediated phosphorylation stabilizes SREBP1 during mitosis [J].
Bengoechea-Alonso, Maria T. ;
Ericsson, Johan .
CELL CYCLE, 2006, 5 (15) :1708-1718
[2]   Hyperphosphorylation regulates the activity of SREBP1 during mitosis [J].
Bengoechea-Alonso, MT ;
Punga, T ;
Ericsson, J .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (33) :11681-11686
[3]   Cholesterol addition to ER membranes alters conformation of SCAP, the SREBP escort protein that regulates cholesterol metabolism [J].
Brown, AJ ;
Sun, LP ;
Feramisco, JD ;
Brown, MS ;
Goldstein, JL .
MOLECULAR CELL, 2002, 10 (02) :237-245
[4]   The SREBP pathway: Regulation of cholesterol metabolism by proteolysis of a membrane-bound transcription factor [J].
Brown, MS ;
Goldstein, JL .
CELL, 1997, 89 (03) :331-340
[5]   A proteolytic pathway that controls the cholesterol content of membranes, cells, and blood [J].
Brown, MS ;
Goldstein, JL .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (20) :11041-11048
[6]   Sterols block binding of COPII proteins to SCAP, thereby controlling SCAP sorting in ER [J].
Espenshade, PJ ;
Li, WP ;
Yabe, D .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (18) :11694-11699
[7]   Unsaturated fatty acids down-regulate SREBP isoforms 1a and 1c by two mechanisms in HEK-293 cells [J].
Hannah, VC ;
Ou, JF ;
Luong, A ;
Goldstein, JL ;
Brown, MS .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2001, 276 (06) :4365-4372
[8]   Androgens stimulate lipogenic gene expression in prostate cancer cells by activation of the sterol regulatory element-binding protein cleavage activating protein/sterol regulatory element binding protein pathway [J].
Heemers, H ;
Maes, B ;
Foufelle, F ;
Heyns, W ;
Verhoeven, G ;
Swinnen, JV .
MOLECULAR ENDOCRINOLOGY, 2001, 15 (10) :1817-1828
[9]   Sterol regulatory element-binding proteins: activators of cholesterol and fatty acid biosynthesis [J].
Horton, JD ;
Shimomura, I .
CURRENT OPINION IN LIPIDOLOGY, 1999, 10 (02) :143-150
[10]   SREBP pathway responds to sterols and functions as an oxygen sensor in fission yeast [J].
Hughes, AL ;
Todd, BL ;
Espenshade, PJ .
CELL, 2005, 120 (06) :831-842