Long non-coding RNA FEZF1-AS1 facilitates cell proliferation and migration in colorectal carcinoma

Na ChenJun Zhou


Long non-coding RNAs (lncRNA) have been shown to play important roles in the development and progression of cancer. Here, we discovered a novel long noncoding RNA (lncRNA) FEZF1 antisense RNA1 (FEZF1-AS1) is markedly upregulated in human primary colorectal carcinoma (CRC) and associated with CRC metastasis and poor prognosis. Moreover, the downregulation of FEZF1-AS1 expression significantly inhibited the CRC cells proliferation, migration and invasiveness, suppressed S-phase entry in vitro, and repressed tumor growth and metastasis in vivo. In contrast, overexpression of FEZF1-AS1 could promote the aggressive behaviors of CRC cells. We further discovered that the downregulation of FEZF1-AS1 reduced its sense-cognate gene FEZF1 mRNA and protein expression in CRC cells. There was a positive correlation between FEZF1-AS1 and FEZF1 expression in CRC. Moreover, FEZF1 knockdown also significantly suppressed CRC cell proliferation, migration, and invasion. Our findings indicate that the dysregulation of FEZF1-AS1 participates in colorectal tumorigenesis and progression, which might be achieved, at least in part, through FEZF1 induction.


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Methods Mentioned

flow cytometry

Software Mentioned

CELL Quest

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