期刊
ENVIRONMENTAL TOXICOLOGY
卷 36, 期 3, 页码 308-319出版社
WILEY
DOI: 10.1002/tox.23036
关键词
DLX6-AS1; miR-497-5p; prostate cancer; SNCG
This study found that DLX6-AS1 is significantly upregulated in prostate cancer and functions as an oncogene by promoting tumor growth through the miR-497-5p/SNCG axis. Silencing DLX6-AS1 can inhibit the progression of prostate cancer.
Prostate cancer (PCa) has become the second leading cause of cancer-related mortality in males worldwide. Although the long noncoding RNA DLX6-AS1 has been recognized to be an oncogene in multiple cancers, the biological function and regulatory mechanism of DLX6-AS1 in prostate cancer are still obscure. In the present study, we observed that DLX6-AS1 was significantly upregulated in PCa tissues and cells. Knockdown of DLX6-AS1 inhibited PCa progression by suppressing cell proliferation and accelerating cell apoptosis. Molecular mechanism exploration indicated that DLX6-AS1 acted as a sponge for miR-497-5p and synuclein gamma (SNCG) was a downstream target gene of miR-497-5p. In addition, there was a negative correlation between DLX6-AS1 and miR-497-5p in PCa tissues. Rescue assays showed that SNCG overexpression could partially recover DLX6-AS1 knockdown-mediated inhibition of progression in PCa. Furthermore, xenograft tumor model was established to determine the role of DLX6-AS1 in PCa tumor growth and the results suggested that DLX6-AS1 could facilitate tumor growth by regulating SNCG in vivo. In conclusion, our study investigated the biological function and underlying mechanism of DLX6-AS1 in PCa and validated that DLX6-AS1 functioned as an oncogene through miR-497-5p/SNCG axis.
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