Cryptotanshinone suppresses cell proliferation and induces apoptosis in renal cell carcinoma as an STAT3 inhibitor

2018 ◽  
Vol 4 ◽  
2020 ◽  
Author(s):  
Lungwani Muungo

TRIM44 has oncogenic roles in various cancers. However, TRIM44 expression andits function in renal cell carcinoma (RCC) are still unknown. Here in this study, weinvestigated the clinical significance of TRIM44 and its biological function in RCC.TRIM44 overexpression was significantly associated with clinical M stage, histologictype (clear cell) and presence of lymphatic invasion (P = .047, P = .005, and P = .028,respectively). Moreover, TRIM44 overexpression was significantly associated withpoor prognosis in terms of cancer-specific survival (P = .019). Gain-of-function andloss-of-function studies using TRIM44 and siTRIM44 transfection showed thatTRIM44 promotes cell proliferation and cell migration in two RCC cell lines, Caki1and 769P. To further investigate the role of TRIM44 in RCC, we performed integratedmicroarray analysis in Caki1 and 769P cells and explored the data in the Oncominedatabase. Interestingly, FRK was identified as a promising candidate target gene ofTRIM44, which was downregulated in RCC compared with normal renal tissues. Wefound that cell proliferation was inhibited by TRIM44 knockdown and then recoveredby siFRK treatment. Taken together, the present study revealed the associationbetween high expression of TRIM44 and poor prognosis in


2020 ◽  
Vol 29 (1) ◽  
pp. 39-50
Author(s):  
Kerong Wu ◽  
Linkun Hu ◽  
Xiuyi Lv ◽  
Junfeng Chen ◽  
Zejun Yan ◽  
...  

BACKGROUND: Long non-coding RNAs (lncRNAs) play important roles in cancer development, yet their roles in renal carcinoma remain unclear. OBJECTIVE: We performed this study in order to investigate the expression and roles of lncRNAs in renal cell carcinoma. METHODS: In this study, we investigated the expression of lncRNAs in renal cell carcinoma through microarray analysis. Quantitative real-time PCR was performed to measure the expression of lncRNAs. Gain- or loss-of-function experiments were performed to investigate the roles of lncRNAs in cell proliferation and apoptosis. RNA pull-down and western blotting were performed to explore the underlying mechanism. RESULTS: The microarray analysis identified an upregulated lncRNA MIR4435-1HG in renal carcinoma. The expression level of MIR4435-1HG was correlated with TNM stage, tumor size, and Fuhrman grade. High expression of MIR4435-1HG indicated poor prognosis. MIR4435-1HG knockdown inhibited cell proliferation, and suppressed the migrating and invasive capacity of renal carcinoma cells. RNA pull-down followed by mass spectrometry revealed an interaction between MIR4435-1HG and pyruvate carboxylase, which was later corroborated by western blotting. CONCLUSIONS: MIR4435-1HG plays a critical role in the oncogenesis of renal cell carcinoma and may serve as a potential biomarker for renal cell carcinoma.


Oncotarget ◽  
2017 ◽  
Vol 8 (12) ◽  
pp. 19834-19842 ◽  
Author(s):  
Shuai Meng ◽  
Yi Zhu ◽  
Jiang-Feng Li ◽  
Xiao Wang ◽  
Zhen Liang ◽  
...  

2020 ◽  
Vol Volume 12 ◽  
pp. 4309-4320 ◽  
Author(s):  
Jun Li ◽  
Donggen Jiang ◽  
Qian Zhang ◽  
Shubin Peng ◽  
Guolong Liao ◽  
...  

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