Expression of nucleostemin in prostate cancer and its effect on the proliferation of PC-3 cells.

Abstract:

BACKGROUND:Nucleostemin is essential for the proliferation and survival of stem and cancer cells, but it is unknown whether this newly identified molecule is involved in prostate cancer pathogenesis. METHODS:Total RNA and protein were extracted from prostate cancer tissues and PC-3, LNCap and DU145 cell lines. The nucleostemin mRNA and protein expression were measured by RT-PCR and Western blot. Immunohistochemistry was also used to detect the nucleostemin protein expression in prostate cancer tissues and PC-3 cells. A nucleostemin specific, short hairpin RNA, expression plasmid was used to transfect PC-3 cells. The changes of nucleostemin gene were detected and the proliferative capacity of the cells was determined. RESULTS:Nucleostemin was highly expressed in prostate cancer tissues and cell lines. Nucleostemin expression level in the silencer group PC-3 cells remarkably reduced. The proliferation rate of silencer group PC-3 cells decreased and the percentage of G1 stage cells increased. The neoplasm forming capacity in nude mice of the silencer group PC-3 cells decreased significantly. CONCLUSIONS:Nucleostemin is highly expressed in prostate cancer tissues and cell lines. The proliferative capacity of PC-3 cells is remarkably reduced after silencing nucleostemin gene expression.

journal_name

Chin Med J (Engl)

journal_title

Chinese medical journal

authors

Liu RL,Zhang ZH,Zhao WM,Wang M,Qi SY,Li J,Zhang Y,Li SZ,Xu Y

subject

Has Abstract

pub_date

2008-02-20 00:00:00

pages

299-304

issue

4

eissn

0366-6999

issn

2542-5641

journal_volume

121

pub_type

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