Numerous circular RNAs(circ RNAs) have been identified as vital regulators in various cancers. The newly reported circular RNA ubiquitin-associated protein 2(circ UBAP2) is a critical player in cell growth and metasta...Numerous circular RNAs(circ RNAs) have been identified as vital regulators in various cancers. The newly reported circular RNA ubiquitin-associated protein 2(circ UBAP2) is a critical player in cell growth and metastasis in various types of cancers, although its role in colorectal cancer(CRC) has yet to be fully elucidated. We find that circ UBAP2 is upregulated in CRC tissues and cell lines to induce autophagy both in vitro and in vivo. The effects of circ UBAP2 on migration, invasion, and proliferation may be partially related to autophagy. Mechanistically, we uncover that circ UBAP2 can directly interact with mi R-582-5 p and subsequently act as a micro RNA sponge to regulate the expression of the mi R-582-5 p target gene forkhead box protein O1(FOXO1) and downstream signaling molecules, which collectively advance the progression and metastasis of CRC. These results suggest that circ UBAP2 acts as an oncogene via a novel circ UBAP2/mi R-582-5 p/FOXO1 axis, providing a potential biomarker and therapeutic target for CRC management.展开更多
基金supported by grants from the National Natural Science Foundation of China(82072819,81972377)Xuzhou Science and Technology Project(KC19024)Jiangsu Research and Practice Innovation of Graduate Students(KYCX19-2213)。
文摘Numerous circular RNAs(circ RNAs) have been identified as vital regulators in various cancers. The newly reported circular RNA ubiquitin-associated protein 2(circ UBAP2) is a critical player in cell growth and metastasis in various types of cancers, although its role in colorectal cancer(CRC) has yet to be fully elucidated. We find that circ UBAP2 is upregulated in CRC tissues and cell lines to induce autophagy both in vitro and in vivo. The effects of circ UBAP2 on migration, invasion, and proliferation may be partially related to autophagy. Mechanistically, we uncover that circ UBAP2 can directly interact with mi R-582-5 p and subsequently act as a micro RNA sponge to regulate the expression of the mi R-582-5 p target gene forkhead box protein O1(FOXO1) and downstream signaling molecules, which collectively advance the progression and metastasis of CRC. These results suggest that circ UBAP2 acts as an oncogene via a novel circ UBAP2/mi R-582-5 p/FOXO1 axis, providing a potential biomarker and therapeutic target for CRC management.
