HEPSIN inhibits cell growth/invasion in prostate cancer cells.

Abstract:

:Expression of HEPSIN, a type II transmembrane serine protease in prostate cancer (CaP), has been highlighted by several studies analyzing CaP-specific gene expression alterations by cDNA microarray. Evaluations of the biological functions of HEPSIN in CaP cells are warranted for better assessment of its utility as a biomarker and/or therapeutic target. In stable clones of PC-3/HEPSIN transfectants, there was a dramatic reduction in the cell growth, cell invasion, and soft agar colony formation. A higher proportion of PC-3/HEPSIN cells were in the G(2)-M phase of the cell cycle, and there was also an increase in the cell population undergoing apoptosis. Preliminary analysis of HEPSIN transfections into LNCaP and DU145 cells further revealed cell growth-inhibitory effects. These results underscore that exogenous HEPSIN expression negatively regulates cell growth in metastatic CaP cell lines. Although the cause of the biological consequence of HEPSIN overexpression in primary CaP remains to be determined, the negative cell growth-regulatory effects of HEPSIN in metastatic CaP cells reported here have unraveled possible cellular and molecular mechanisms underlying observations that link decreased/loss of HEPSIN expression with poor prognosis of CaP.

journal_name

Cancer Res

journal_title

Cancer research

authors

Srikantan V,Valladares M,Rhim JS,Moul JW,Srivastava S

subject

Has Abstract

pub_date

2002-12-01 00:00:00

pages

6812-6

issue

23

eissn

0008-5472

issn

1538-7445

journal_volume

62

pub_type

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