The expression of prostatic acid phosphatase is transcriptionally regulated in human prostate carcinoma cells

Renee Garcia-Arenas, Fen Fen Lin, Dinlii Lin, Li Ping Jin, Charles C.-Y. Shih, Chawnshang Chang, Ming Fong Lin

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The expression of prostatic acid phosphatase (PAcP) in three human prostate carcinoma cell lines including LNCaP, DU 145 and PC-3, was studied to explore its potential role as a marker in the progression of prostate cancer. Although Southern blot analysis suggested the presence of PAcP gene in all three prostate carcinoma cell lines, the Northern blot analysis and the reverse transcriptase-polymerase chain reaction (RT-PCR) assay showed that PAcP mRNA can be detected only in LNCaP cells. As one of the major differences between LNCaP cells and PC-3 as well as DU 145 cells is the androgen-sensitivity of LNCaP cells, we then focused on the influence of PAcP expression by the presence of androgen receptor (AR) in hman AR cDNA-transfected PC-3 cells and high passages of LNCaP cells. The results demonstrated that the transfection of human AR cDNA into PC-3 cells did not have any detectable effect on the expression of PAcP. Further, in LNCaP cells, while the level of PAcP mRNA diminished upon passage, the AR mRNA level remained approximately the same. Together, these data suggested that the differential expression of PAcP in different prostate carcinoma cells including high passages of LNCaP cells may occur at the transcriptional level and may have little linkage to the expression of AR.

Original languageEnglish (US)
Pages (from-to)29-37
Number of pages9
JournalMolecular and Cellular Endocrinology
Volume111
Issue number1
DOIs
StatePublished - Apr 28 1995

Keywords

  • Androgen
  • Differentiation antigen
  • Prostate epithelium
  • Prostatic acid phosphatase (human)

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Endocrinology

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