Clofibrate Induces Heme Oxygenase 1 Expression through a PPARa-Independent Mechanism in Human Cancer Cells

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Clofibrate induces heme oxygenase 1 expression through a PPARα-independent mechanism in human cancer cells.

BACKGROUND AND AIMS Clofibrate, an established PPARα ligand, has recently been shown to have anticancer activity yet its mechanisms of action remain to be characterized. This study examined the effect of clofibrate on heme oxygenase-1 (HO-1) gene expression in A2780 (human ovarian cancer) and DU145 (human prostate cancer) cells. METHODS AND RESULTS We demonstrate that clofibrate induces HO-1 ...

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The Expression of Heme Oxygenase-1 in Human-Derived Cancer Cell Lines

Background: Heme oxygenase-1 (HO-1) is a cytoprotective and antiapoptotic enzyme, which has been involved in maintaining cellular homeostasis, and plays an important protective role by modulating oxidative injury. Up-regulation of (HO-1) has contributed to tumorogenicity of some cancers. In this study we investigated the expression pattern of the HO-1, in five different human-derived cancer cel...

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homocysteine induces heme oxygenase-1 expression via transcription factor nrf2 activation in hepg2 cells

background: elevated level of plasma homocysteine has been related to various diseases. patients with hyperhomocysteinemia can develop hepatic steatosis and fibrosis. we hypothesized that oxidative stress induced by homocysteine might play an important role in pathogenesis of liver injury. also, the cellular response designed to combat oxidative stress is primarily controlled by the transcripti...

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Heme oxygenase (HO) catalyzes the first and rate-controlling step of heme catabolism into biliverdin, iron and carbon monoxide. Three isoforms of HO have been identified so far: the inducible HO-1 and the constitutive HO-2 and HO-3. Both HO-1 and HO-2 were expressed in zona fasciculata (ZF) adrenal cells and in a mouse adrenocortical cell line (Y1). HO-1 but not HO-2 expression was upregulated ...

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ژورنال

عنوان ژورنال: Cellular Physiology and Biochemistry

سال: 2013

ISSN: 1421-9778,1015-8987

DOI: 10.1159/000354524