Effects of small hairpin RNA-mediated S100A13 gene inhibition on the release of fibroblast growth factor-1 in human thyroid cancer cells
10.3760/cma.j.issn.1000-6699.2010.10.005
- VernacularTitle:shRNA干扰S100A13基因对人甲状腺癌细胞释放成纤维细胞生长因子1的影响
- Author:
Lina TIAN
;
Renxian CAO
;
Xing LIU
;
Fang WEN
;
Jing ZHONG
;
Bin YAN
;
Gebo WEN
- Publication Type:Journal Article
- Keywords:
Thyroid cancer;
TT cells;
S100A13 gene;
Fibroblast growth factor-1
- From:
Chinese Journal of Endocrinology and Metabolism
2010;26(10):847-849
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate whether the release of fibroblast growth factor-1 ( FGF-1 ) was changed after inhibition of S100A13 gene (small hairpin RNA, shRNA)and serum-deprivation in human thyroid cancer cells (TT cells ). Methods The S100A13-shRNA pENTRTM/U6 entry vector was transfected into TT cells. The expression of S100A13 mRNA and protein was detected by immunoflurescence, real-time RT-PCR, and Western blot. Then TT cells were treated with S100A13 gene inhibition and serum-deprivation. The changes in release of FGF-1 were detected by indirect immunoflurescence, RT-PCR, and ELISA. Results S100A13 shRNA transfected TT cells (S100A13 RNAi cells)had a reduction of S100A13 gene and protein expression by 80%.Indirect immunofluorescence indicated FGF-1 was mostly localized in the cytoplasm and nucleus of TT cells in primary culture. When serum-deprivation stress was given to TT cells, FGF-1 in cytoplasm almost disappeared in the cells at 6 h. RT-PCR indicated that when serum-deprivation stress was given to TT cells the mRNA of FGF-1 was reduced. ELISA showed that with inhibition of S100A13, the release of FGF-1 was reduced (P＜0.05).Conclusion S100A13-shRNA pENTRTM/U6 entry vector transfected TT cells may inhibit the expression of S100A13 and reduce the release of FGF-1.
