CiRS-7 promotes growth and metastasis of esophageal squamous cell carcinoma via regulation of miR-7/HOXB13

Autor: Weng-feng Wang, Shun Ke, Zhi-gang He, Xiao-jing Zou, Ming-hao Fang, Jun Lu, Fan-kai Meng, Rui-chao Li
Rok vydání: 2018
Předmět:
Zdroj: Cell Death & Disease
Cell Death and Disease, Vol 9, Iss 8, Pp 1-13 (2018)
ISSN: 2041-4889
Popis: The circular RNA ciRS-7 has been reported to be involved in the pathogenesis of various tumors, including gastric and colorectal cancer. However, the role of ciRS-7 in esophageal squamous cell carcinoma (ESCC) remains unsolved. In this study, we found that the ciRS-7 expression was significantly upregulated in ESCC cancer tissues compared with matched normal tissues and associated with poor patient survival. Overexpression of ciRS-7 abrogated the tumor-suppressive roles of miR-7 including cell proliferation, migration and invasion in vitro as well as tumor growth and lung metastasis in vivo. Mechanistically, ciRS-7 functioned as the sponge of miR-7 and reactivated its downstream HOXB13-mediated NF-κB/p65 pathway. Conclusively, our findings demonstrate how ciRS-7 induces malignant progression of ESCC and that ciRS-7 may act as a novel prognostic marker and therapeutic target for this lethal disease.
Databáze: OpenAIRE