Identification and characterization of regulatory elements of the human prostatic acid phosphatase promoter

Stanislav Zelivianski, Tsukasa Igawa, Stephen Lim, Rodney Taylor, Ming-Fong Lin

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Human prostatic acid phosphatase (PAcP) is a prostate epithelium-specific differentiation antigen. The cellular form of PAcP functions as a neutral protein-tyrosine phosphatase, and is involved in regulating prostate cell growth. Although some information on the PAcP gene structure has been obtained, little is known regarding the cis- and trans-acting factors that regulate its expression. Due to the biological importance of PAcP, we investigated the regulation of its expression. A region upstream of the PAcP gene from -2899 to +87 base pairs was linked to the coding sequence of the chloramphenicol acetyltransferase (CAT) gene. Sequential deletions of the sequence between -2899 and -205 revealed that, in addition to the basic promoter, the region between -1258 and -779 represents a positive regulatory element. This -1258/-779 fragment could enhance the PAcP promoter activity in PC-3 and DU 145 human prostate cancer cells, but not in non-prostate cancer cells, including WI-38 lung diploid cells, A-431 epidermoid carcinoma cells, and HeLa cervix epitheloid carcinoma cells. Furthermore, this cis-element together with the promoter sequence could drive a high level of expression of green fluorescent protein (GFP) in PC-3 cells, but not in HeLa cells. The prostate-specific expression was further examined by injecting naked plasmid DNA into the prostate and the hamstring muscle of mice. The fluorescence pattern clearly showed that the level of GFP expression is consistently higher in prostate cells than in muscle cells of the intact animal. The data collectively indicate that region between -1258 and -779 is involved in governing the cell type-specific expression of the PAcP gene.

Original languageEnglish (US)
Pages (from-to)3696-3705
Number of pages10
JournalOncogene
Volume21
Issue number23
DOIs
StatePublished - May 23 2002

Fingerprint

Prostate
Green Fluorescent Proteins
HeLa Cells
Genes
Protein Tyrosine Phosphatases
Chloramphenicol O-Acetyltransferase
Trans-Activators
Sequence Deletion
Differentiation Antigens
Prostate-Specific Antigen
prostatic acid phosphatase
Diploidy
Genetic Promoter Regions
Cervix Uteri
Base Pairing
Muscle Cells
Squamous Cell Carcinoma
Prostatic Neoplasms
Plasmids
Epithelium

Keywords

  • DNA injection
  • Promoter analysis
  • Prostatic acid phosphatase
  • Tissue-specific expression

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Cancer Research

Cite this

Identification and characterization of regulatory elements of the human prostatic acid phosphatase promoter. / Zelivianski, Stanislav; Igawa, Tsukasa; Lim, Stephen; Taylor, Rodney; Lin, Ming-Fong.

In: Oncogene, Vol. 21, No. 23, 23.05.2002, p. 3696-3705.

Research output: Contribution to journalArticle

Zelivianski, Stanislav ; Igawa, Tsukasa ; Lim, Stephen ; Taylor, Rodney ; Lin, Ming-Fong. / Identification and characterization of regulatory elements of the human prostatic acid phosphatase promoter. In: Oncogene. 2002 ; Vol. 21, No. 23. pp. 3696-3705.
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