Long non-coding RNA H19 promotes the proliferation and invasion of breast cancer through upregulating DNMT1 expression by sponging miR-152

2017 ◽  
Vol 31 (9) ◽  
pp. e21933 ◽  
Author(s):  
Zhen Li ◽  
Yan Li ◽  
Ya Li ◽  
Kewei Ren ◽  
Xin Li ◽  
...  
Oncotarget ◽  
2017 ◽  
Vol 8 (28) ◽  
pp. 46090-46103 ◽  
Author(s):  
Yu Fang ◽  
Jingxuan Wang ◽  
Feng Wu ◽  
Ying Song ◽  
Shu Zhao ◽  
...  

2020 ◽  
Vol 26 ◽  
Author(s):  
Bei Wang ◽  
Wen Xu ◽  
Yuxuan Cai ◽  
Chong Guo ◽  
Gang Zhou ◽  
...  

Background: CASC15, one of long non-coding RNA, is involved in the regulation of many tumor biological processes, and is expected to become a new biological therapeutic target. This paper aims to elucidate the pathophysiological function of CASC15 in various tumors. Methods: The relationship between CASC15 and tumors was analyzed by searching references, and summarizes the specific pathophysiological mechanism of CASC15. Results: LncRNA CASC15 is closely related to tumor development, and has been shown to be abnormally high expressed in all kinds of tumors, including breast cancer, cervical cancer, lung cancer, hepatocellular carcinoma, gastric cancer, bladder cancer, colon cancer, colorectal cancer, cardiac hypertrophy, intrahepatic cholangiocarcinoma, leukemia, melanoma, tongue squamous cell carcinoma, nasopharyngeal carcinoma. However, CASC15 has been found to be downexpressed abnormally in ovarian cancer, glioma and neuroblastoma. Besides, it is identified that CASC15 can affect the proliferation, invasion and apoptosis of tumors. Conclusion: LncRNA CASC15 has the potential to become a new therapeutic target or marker for a variety of tumors.


Oncogene ◽  
2021 ◽  
Author(s):  
Yina Qiao ◽  
Ting Jin ◽  
Shengdong Guan ◽  
Shaojie Cheng ◽  
Siyang Wen ◽  
...  

AbstractInvasion and metastasis are the leading causes of death in patients with breast cancer (BC), and epithelial-mesenchymal transformation (EMT) plays an essential role in this process. Here, we found that Lnc-408, a novel long noncoding RNA (lncRNA), is significantly upregulated in BC cells undergoing EMT and in BC tumor with lymphatic metastases compared with those without lymphatic metastases. Lnc-408 can enhance BC invasion and metastasis by regulating the expression of LIMK1. Mechanistically, Lnc-408 serves as a sponge for miR-654-5p to relieve the suppression of miR-654-5p on its target LIMK1. Knockdown or knockout of Lnc-408 in invasive BC cells clearly decreased LIMK1 levels, and ectopic Lnc-408 in MCF-7 cells increased LIMK1 expression to promote cell invasion. Lnc-408-mediated enhancement of LIMK1 plays a key role in cytoskeletal stability and promotes invadopodium formation in BC cells via p-cofilin/F-actin. In addition, the increased LIMK1 also facilitates the expression of MMP2, ITGB1, and COL1A1 by phosphorylating CREB. In conclusion, our findings reveal that Lnc-408 promotes BC invasion and metastasis via the Lnc-408/miR-654-5p/LIMK1 axis, highlighting a novel promising target for the diagnosis and treatment of BC.


2017 ◽  
Vol 489 (4) ◽  
pp. 386-392 ◽  
Author(s):  
Yang Xia ◽  
Xiangqian Xiao ◽  
Xiongwei Deng ◽  
Fang Zhang ◽  
Xiaofei Zhang ◽  
...  

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