Effect of silencing UHRF1 on proliferation and metastasis of breast cancer cells
10.11904/j.issn.1002-3070.2017.06.006
- VernacularTitle:沉默UHRF1对乳腺癌细胞增殖和转移的影响
- Author:
Zhuo CHEN
1
;
Yiran KONG
Author Information
1. 哈尔滨医科大学附属肿瘤医院 哈尔滨 150081
- Keywords:
UHRF1;
Breast cancer;
p53;
Metastasis;
Apoptosis
- From:
Practical Oncology Journal
2017;31(6):512-518
- CountryChina
- Language:Chinese
-
Abstract:
Objective The objective of this study was to investigate the effect of UHRF1 on the prolifer-ation and metastasis of breast cancer MDA-MB-231 cells and its mechanism. Methods The effect of silen-cing UHRF1 gene on the viability of MDA-MB-231 cells was detected by MTT assay. Colony formation assay was performed to analyze the effect of silencing UHRF1 on cell survival of MDA-MB-231 cells. The effect of silencing UHRF1 on the apoptosis of MDA-MB-231 cells was detected by acridine orange-ethidium bromide ( AO / EB) . Caspase-3 activity kit was used to detect the expression of caspase-3 in MDA-MB-231 cells. The expressions of Bcl-2,Bax,Bad,p-Bad,XIAP,p53,p21Cip1/Waf and p16INK4a were detectedby Western blot. The abilities of invasion and migration of MDA-MB-231 cells silenced by UHRF1were examined by Transwell and Wound healing assays,respectively. Results Silencing UHRF1 significantlydecreased the viability of MDA-MB-231 cells. Silencing UHRF1 decreased colony formation in MDA-MB-231 cells. Depletion of UHRF1 resulted in apoptosis inducedin MDA-MB-231 cells,showing nuclear morphological changes by AO/EB stai-ning and increasing caspase -3 activity. After knockdown of UHRF1,the expression of Bad,XIAP,Bax,p53, p21Cip1/Waf1 and p16INK4a was up-regulatedand down-regulated the expression of p-Bad and Bcl-2 in MDA-MB-231 cells. Transwell and wound healing assays demonstrated that silencing UHRF1 could decrease metasta-sisin MDA-MB-231 cells. Conclusion Silencing UHRF1 can inhibit the viability and survival of MDA-MB-231 cells,and inhibit the invasion and migration of MDA - MB -231 cells regulated by p53/p21Cip1/Waf1/p16INK4asignalings.
