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A serum shock induces circadian gene expression in mammalian tissue culture cells
Author(s): Balsalobre A, Damiola F, Schibler U
Source: CELL    Volume: 93    Issue: 6    Pages: 929-937    Published: JUN 12 1998  
Times Cited: 666     References: 49     
Abstract: The treatment of cultured rat-1 fibroblasts or H35 hepatoma cells with high concentrations of serum induces the circadian expression of various genes whose transcription also oscillates in living animals. Oscillating genes include rper1 and rper2 (rat homologs of the Drosophila clock gene period), and the genes encoding the transcription factors Rev-Erb alpha, DBP, and TEF. In rat-1 fibroblasts, up to three consecutive daily oscillations with an average period length of 22.5 hr could be recorded. The temporal sequence of the various mRNA accumulation cycles is the same in cultured cells and in vivo. The serum shock of rat-1 fibroblasts also results in a transient stimulation of c-fos and rper expression and thus mimics light-induced immediate-early gene expression in the suprachiasmatic nucleus.
Document Type: Article
Language: English
Reprint Address: Schibler, U (reprint author), Univ Geneva, Dept Mol Biol, 30 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
Addresses:
1. Univ Geneva, Dept Mol Biol, CH-1211 Geneva 4, Switzerland
Publisher: CELL PRESS, 1050 MASSACHUSETTES AVE, CIRCULATION DEPT, CAMBRIDGE, MA 02138 USA
Subject Category: Biochemistry & Molecular Biology; Cell Biology
IDS Number: ZU514
ISSN: 0092-8674
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