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 journalauthors
Liu RL,Zhang ZH,Zhao WM,Wang M,Qi SY,Li J,Zhang Y,Li SZ,Xu Ysubject
Has Abstractpub_date
2008-02-20 00:00:00pages
299-304issue
4eissn
0366-6999issn
2542-5641journal_volume
121pub_type
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