TY - EJOU AU - Wu, Xiaoyu AU - Zhou, Jin AU - Wu, Zhenfeng AU - Chen, Che AU - Liu, Jiayun AU - Wu, Guannan AU - Zhai, Jing AU - Liu, Fukun AU - Li, Gang TI - miR-101-3p Suppresses HOX Transcript Antisense RNA (HOTAIR)-Induced Proliferation and Invasion Through Directly Targeting SRF in Gastric Carcinoma Cells T2 - Oncology Research PY - 2017 VL - 25 IS - 8 SN - 1555-3906 AB - miR-101-3p has been identified as a tumor suppressor in several cancers, but its exact role in gastric adenocarcinoma is still largely unknown. In this study, we found that, compared with the RGM-1 human normal gastric epithelial cells, miR-101-3p was significantly downregulated in all six human gastric adenocarcinoma cell lines, including BGC-823, MNK-45, MGC-803, SGC-7901, AGS, and HGC-27. Overexpression of miR- 101-3p suppressed both the proliferation and invasion of AGS gastric adenocarcinoma cells, and knockdown of miR-101-3p displayed the opposite effect. In addition, miR-101-3p could directly target and suppress the expression of the serum response factor (SRF) gene, which is a transcription factor of HOTAIR, a wellcharacterized tumor promoter lncRNA. miR-101-3p negatively regulated SRF-mediated transcription of HOTAIR. Moreover, silencing of either SRF or HOTAIR could counteract the promotion of gastric adenocarcinoma cell proliferation and invasion by miR-101-3p inhibition. Our findings indicate that miR-101-3p suppresses HOTAIRinduced proliferation and invasion through directly targeting SRF in gastric carcinoma cells. KW - miR-101-3p; Gastric carcinoma; Proliferation and invasion; Serum response factor (SRF); HOX transcript antisense RNA (HOTAIR) DO - 10.3727/096504017X14879366402279