Inhibition of survivin gene expression in PC-3 cells by RNAi / 中华男科学杂志
National Journal of Andrology
;
(12): 890-895, 2006.
Article
in Chinese
| WPRIM
| ID: wpr-289116
ABSTRACT
<p><b>OBJECTIVE</b>To construct eukaryotic expression vectors by using the pSilencer3. 1-H1 neo vector for inhibiting human survivin gene by RNA interference, and to detect the effect of the silenced survivin gene on PC-3 cells.</p><p><b>METHODS</b>Three target gene segments were synthesized and cloned into the pSilencer3. 1-H1 neo vector respectively to construct three recombinant eukaryotic expression vectors pSilencer3. 1-SVV1, pSilencer3. 1-SVV2 and pSilencer3. 1-SVV3, which were identified by enzyme digestion analysis and DNA sequencing. Then the PC-3 cells were transfected with the recombinant vectors and the interference effect detected by RT-PCR, Western blot and immunohistochemical staining. The apoptosis index of the PC-3 cells was detected by flow cytometry and their proliferation detected by MTT method.</p><p><b>RESULTS</b>Enzyme digestion analysis and DNA sequencing showed that three target segments were cloned into pSilencer3. 1-H1-neo vectors. The results of RT-PCR, Western blot and immunohistochemical staining indicated that pSilencer3. 1-SVV2 and pSilencer3. 1-SVV3 vectors could knock down the transcription and expression of survivin gene. After transfected with pSilencer3. 1-SVV2 and pSilencer3. 1-SVV3 vectors, the apoptosis index of the PC-3 cells was increased by 10% - 15% and their growth obviously slowly down.</p><p><b>CONCLUSION</b>The transcription and expression of survivin gene were inhibited effectively by the recombinant eukaryotic expression vectors (pSilencer3. 1-SVV2 and pSilencer3. 1-SVV3) in the prostate cancer cell line PC-3. After transfected with pSilencer3. 1-SVV2 and pSilencer3. 1-SVV3 vectors, the apoptosis index of the PC-3 cells was increased and their growth inhibited.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Pharmacology
/
Prostatic Neoplasms
/
Transfection
/
Down-Regulation
/
Gene Expression Regulation, Neoplastic
/
Apoptosis
/
RNA, Small Interfering
/
RNA Interference
/
Cell Line, Tumor
Limits:
Humans
/
Male
Language:
Chinese
Journal:
National Journal of Andrology
Year:
2006
Type:
Article
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