Abstract 533: XIAP BIR domain suppresses miR-200a expression and subsequently promotes EGFR protein translation and anchorage-independent growth of bladder cancer cell

Author(s):  
Xin Liao ◽  
Chao Huang ◽  
Jingxia Li ◽  
Chuanshu Huang
2016 ◽  
Vol 39 (5) ◽  
pp. 1787-1794 ◽  
Author(s):  
Yi Zhi ◽  
Jinhong Pan ◽  
Wenhao Shen ◽  
Peng He ◽  
Ji Zheng ◽  
...  

Background/Aims: Ginkgolide B (GB) is currently used as an anticancer drug for treatment of some malignant cancers. However, whether it may have therapeutic effects on bladder cancer remains unknown. Here, we studied the effects of GB on bladder cancer cells. Methods: Bladder cells were treated with different doses of GB, and the effects on ZEB1 and microRNA-223-3p (miR-223-3p) were analyzed by RT-qPCR and/or Western blot. Prediction of a regulatory relationship between miR-93 and 3'-UTR of Beclin-1 mRNA was performed by a bioinformatics algorithm and confirmed by a dual luciferase reporter assay. Results: We found that GB dose-dependently decreased ZEB1 protein, but not mRNA, in bladder cancer cells, resulting in suppression of cell invasion. Moreover, in bladder cancer cells, GB dose-dependently decreased the levels of miR-223-3p, which suppressed the protein translation of ZEB1 through binding to 3'-UTR of ZEB1 mRNA. Overexpression of miR-223-3p decreased ZEB1 protein, while depletion of miR-223-3p increased ZEB1 protein in bladder cancer cells. Conclusion: GB inhibits bladder cancer cell invasiveness through suppressing ZEB1 protein translation via upregulating miR-223-3p.


2006 ◽  
Vol 175 (4S) ◽  
pp. 201-201 ◽  
Author(s):  
Isao Hara ◽  
Junya Furukawa ◽  
Kazuki Yamanaka ◽  
Yuji Yamada ◽  
Masato Fujisawa

2015 ◽  
Vol 36 (4) ◽  
pp. 253-261 ◽  
Author(s):  
Yoshinori TAOKA ◽  
Kazumasa MATSUMOTO ◽  
Kazuya OHASHI ◽  
Satoru MINAMIDA ◽  
Masahiro HAGIWARA ◽  
...  

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