This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Request Copyright Permission Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Oram, S. Articles by Wang, Z. Search for Related Content PubMed PubMed Citation Articles by Oram, S. Articles by Wang, Z.

Identification and Characterization of an Androgen-Responsive Gene Encoding an Aci-Reductone Dioxygenase-Like Protein in the Rat Prostate

Departments of Urology (S.O., F.J., X.C., R.H., Z.D., Z.W.) and Molecular Pharmacology and Biological Chemistry (S.O., F.J., Z.W.), The Robert H. Lurie Comprehensive Cancer Center (Z.W.), Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611

Address all correspondence and requests for reprints to: Zhou Wang, Ph.D., Department of Urology, Tarry 16-764, Northwestern University, 303 East Chicago Avenue, Chicago, Illinois 60611. E-mail: wangz{at}northwestern.edu.

The ALP1 [aci-reductone dioxygenase (ARD)-like protein 1] gene was identified in a comprehensive cDNA subtraction aimed at identifying genes regulated by androgens in the rat ventral prostate. ALP1 is homologous to the ARD/ARD' that were discovered in Klebsiella pneumoniae as enzymes that have the same polypeptide sequence and differ only in their metal content. This family of proteins is evolutionarily conserved from bacteria to humans and is involved in the methionine salvage pathway. Northern and Western blot confirmed the regulation of ALP1 by androgens in the rat ventral prostate. ALP1 mRNA is expressed in a variety of tissues; however, its regulation by androgens was specific to the prostate. ALP1 is expressed by the glandular epithelial cells of the rat prostate, with little or no expression in the stromal cells. ALP1 is down-regulated in the different rat Dunning tumor cell lines compared with the normal or castrated rat prostate. Expression studies showed that ALP1 overexpression is not tolerated by AT6.1 cells. Further studies demonstrated that ALP1 is also down-regulated in the human prostate cancer cell lines LNCaP, PC3, and DU145, and overexpression induces cell death in these cells. Taken together, our observations suggest that ALP1 may have an important role in androgen regulated prostate homeostasis as well as in prostate cancer progression by regulating cell death of prostate cancer cells.

This article has been cited by other articles:

				I. Gotoh, T. Uekita, and M. Seiki Regulated nucleo-cytoplasmic shuttling of human aci-reductone dioxygenase (hADI1) and its potential role in mRNA processing. Genes Cells, January 1, 2007; 12(1): 105 - 117. [Abstract] [Full Text] [PDF]

				C. Zer and G. Chanfreau Regulation and Surveillance of Normal and 3'-Extended Forms of the Yeast Aci-reductone Dioxygenase mRNA by RNase III Cleavage and Exonucleolytic Degradation J. Biol. Chem., August 12, 2005; 280(32): 28997 - 29003. [Abstract] [Full Text] [PDF]

				W. Hirano, I. Gotoh, T. Uekita, and M. Seiki Membrane-type 1 matrix metalloproteinase cytoplasmic tail binding protein-1 (MTCBP-1) acts as an eukaryotic aci-reductone dioxygenase (ARD) in the methionine salvage pathway Genes Cells, June 1, 2005; 10(6): 565 - 574. [Abstract] [Full Text] [PDF]