LncRNA HOXB-AS4 promotes proliferation and migration of colorectal cancer via the miR-140-5p/hdac7 axis.

Autor: Deng, Qican, Yang, Jianguo, Chen, Yajun, Chen, Zhenzhou, Li, Juncai, Fu, Zhongxue
Zdroj: Biotechnology & Genetic Engineering Reviews; Oct2024, Vol. 40 Issue 2, p1262-1280, 19p
Abstrakt: Long noncoding RNAs (lncRNA) have a critical role in colorectal cancer (CRC) development and progression. However, the role of the lncRNA HOXB-AS4 in CRC remains unclear. In this study, we found that HOXB-AS4 was markedly upregulated in tumor tissues compared to precancerous tissues. Loss-of-function assays in HT29 and SW480 cells confirmed that knockdown of HOXB-AS4 inhibited proliferation, migration, and promoted apoptosis. In addition, HOXB-AS4 was shown to regulate histone deacetylase 7 (HDAC7) expression by acting as a molecular sponge to bind to and adsorb miR-140-5p. These findings were confirmed by the dual-luciferase reporter assay. Functional recovery experiments further demonstrated the crucial role of the HOXB-AS4/miR-140-5p/HDAC7 axis in modulating the malignant phenotype of CRC cells. Collectively, our data suggested that HOXB-AS4 regulated the malignant tumor aggression of HT29 and SW480 cells through the miR-140-5p/HDAC7 axis and PI3K/AKT signaling pathway. Our study provides novel insights into the mechanism of action of HOXB-AS4 in CRC and highlights its potential use as a targeted therapy. [ABSTRACT FROM AUTHOR]
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