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Molecular and Cellular Biology, October 2003, p. 6993-7004, Vol. 23, No. 19
0270-7306/03/$08.00+0     DOI: 10.1128/MCB.23.19.6993-7004.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.

Autoregulation of Mouse Histone Deacetylase 1 Expression

Bernd Schuettengruber,1 Elisabeth Simboeck,1 Harald Khier,1 and Christian Seiser1*

Division of Molecular Biology, Institute of Medical Biochemistry, University of Vienna, Vienna Biocenter, A-1030 Vienna, Austria1

Received 28 May 2003/ Accepted 2 July 2003

Histone deacetylase 1 (HDAC1) is a major regulator of chromatin structure and gene expression. Tight control of HDAC1 expression is essential for development and normal cell cycle progression. In this report, we analyzed the regulation of the mouse HDAC1 gene by deacetylases and acetyltransferases. The murine HDAC1 promoter lacks a TATA box consensus sequence but contains several putative SP1 binding sites and a CCAAT box, which is recognized by the transcription factor NF-Y. HDAC1 promoter-reporter studies revealed that the distal SP1 site and the CCAAT box are crucial for HDAC1 promoter activity and act synergistically to constitute HDAC1 promoter activity. Furthermore, these sites are essential for activation of the HDAC1 promoter by the deacetylase inhibitor trichostatin A (TSA). Chromatin immunoprecipitation assays showed that HDAC1 is recruited to the promoter by SP1 and NF-Y, thereby regulating its own expression. Coexpression of acetyltransferases elevates HDAC1 promoter activity when the SP1 site and the CCAAT box are intact. Increased histone acetylation at the HDAC1 promoter region in response to TSA treatment is dependent on binding sites for SP1 and NF-Y. Taken together, our results demonstrate for the first time the autoregulation of a histone-modifying enzyme in mammalian cells.

* Corresponding author. Mailing address: Christian Seiser Institute of Medical Biochemistry, Division of Molecular Biology, University of Vienna, Vienna Biocenter, Dr. Bohr-Gasse 9/2, A-1030 Vienna, Austria. Phone: 431 4277 61770. Fax: 431 4277 9617. E-mail: cs{at}mol.univie.ac.at.

Molecular and Cellular Biology, October 2003, p. 6993-7004, Vol. 23, No. 19
0022-538X/03/$08.00+0     DOI: 10.1128/MCB.23.19.6993-7004.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.



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