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    • 1. 发明申请
    • ASSAY FOR PPAR LIGAND DEPENDENT GENE MODULATION
    • 测定PPAR配体依赖基因调控
    • WO2004027376A3
    • 2005-04-14
    • PCT/US0328961
    • 2003-09-16
    • SQUIBB BRISTOL MYERS COMUKHERJEE RANJANLIU PHILLIPHUBER REID MBURN TIMOTHY CYOUNG PETER R
    • MUKHERJEE RANJANLIU PHILLIPHUBER REID MBURN TIMOTHY CYOUNG PETER R
    • C12Q1/68C07H21/04
    • C12Q1/6897C12Q1/6883C12Q2600/158C12Q2545/107
    • The peroxisome proliferator activated receptor alpha (PPARalpha) plays a key role in mediating fatty acid metabolism by regulating expression of genes involved in fatty acid oxidation. A limitation of existing human cell models for testing PPARalpha ligands is the inability to detect PPAR responsive genes with endogenous levels of PPARalpha protein. The HK-2 cell line derived from human proximal tubules showed induction of several genes, including pyruvate dehydrogenase kinase 4 (PDK-4) and adipocyte differentiation related factor (ADRP) by PPARalpha ligands. Induction of PDK-4 by PPARalpha agonists in the HK-2 cell model closely correlates with its induction in vivo and thus represents a marker for PPARalpha agonist action. HK2 cells also exemplify the first model of a human cell line in which PPARalpha ligand dependent gene induction can be detected with endogenous levels of receptor.
    • 过氧化物酶体增殖物激活受体α(PPARα)通过调节参与脂肪酸氧化的基因的表达在调节脂肪酸代谢中起关键作用。 用于测试PPARα配体的现有人类细胞模型的局限性是不能检测具有PPARα蛋白内源水平的PPAR应答基因。 衍生自人近端小管的HK-2细胞系显示PPARα配体诱导几种基因,包括丙酮酸脱氢酶激酶4(PDK-4)和脂肪细胞分化相关因子(ADRP)。 HK-2细胞模型中PPARα激动剂对PDK-4的诱导与体内诱导密切相关,因此代表PPARα激动剂作用的标志物。 HK2细胞也体现了人类细胞系的第一种模式,其中可以用内源性受体水平检测PPARα配体依赖性基因诱导。