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Induction of the peroxisome proliferator activated receptor by fenofibrate in rat liver


Gebel, T; Arand, M; Oesch, F (1992). Induction of the peroxisome proliferator activated receptor by fenofibrate in rat liver. FEBS letters, 309(1):37-40.

Abstract

The process of peroxisome proliferation in rodent liver by hypolipidemic compounds and related substances has recently been shown to be receptor-mediated. In the present study, we have examined the effect of oral administration of the strong peroxisome proliferator fenofibrate on the hepatic expression level of the peroxisome proliferator activated receptor (PPAR) in rats. Immunoblots of rat liver cytosols and nuclear extracts using antibodies raised against recombinant PPAR/beta-galactosidase fusion proteins revealed a pronounced increase in the amount of PPAR protein in response to fenofibrate treatment. This induction could also be confirmed at the level of RNA by Northern blotting. A time-course investigation showed a delayed accumulation of mRNA in response to the treatment, starting on day 2 after a latency period of at least one day. Thus, induction of the PPAR as a response to peroxisome proliferators represents one important dimension of the pleiotropic effects of peroxisome proliferators.

Abstract

The process of peroxisome proliferation in rodent liver by hypolipidemic compounds and related substances has recently been shown to be receptor-mediated. In the present study, we have examined the effect of oral administration of the strong peroxisome proliferator fenofibrate on the hepatic expression level of the peroxisome proliferator activated receptor (PPAR) in rats. Immunoblots of rat liver cytosols and nuclear extracts using antibodies raised against recombinant PPAR/beta-galactosidase fusion proteins revealed a pronounced increase in the amount of PPAR protein in response to fenofibrate treatment. This induction could also be confirmed at the level of RNA by Northern blotting. A time-course investigation showed a delayed accumulation of mRNA in response to the treatment, starting on day 2 after a latency period of at least one day. Thus, induction of the PPAR as a response to peroxisome proliferators represents one important dimension of the pleiotropic effects of peroxisome proliferators.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Pharmacology and Toxicology
07 Faculty of Science > Institute of Pharmacology and Toxicology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Date:31 August 1992
Deposited On:29 Oct 2015 11:35
Last Modified:05 Apr 2016 19:29
Publisher:Elsevier
ISSN:0014-5793
Publisher DOI:https://doi.org/10.1016/0014-5793(92)80734-X
PubMed ID:1324848

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