HDAC6 promote HCCLM3 cell migration and invasion by regulating TGF-β1pathway

Histone deacetylase 6 (HDAC6) have been demonstrated to play critical roles in the progression of tumor migration and invasion in recent years.However, little research has been done on hepatocellular carcinoma (HCC). This study investigated the role of HDAC6 in the migration and invasion of HCCLM3 cells and its potential mechanism. Western blot and immunohistochemistry were used to detect the expression of HDAC6 in normal hepatic cell line LO2 and HCC cell line HCCLM3. Transforming growth factor 1 (TGF-{beta}1) was proved as a direct target of HDAC6 by Western blot and qRT-PCR.The changes of migration and invasion ability of HCCLM3 cells were confirmed by wound healing and Transwell assays.Morphological changes of HCCLM3 cells were observed by microscope.Our study proved that drownregulated HDAC6 supress HCCLM3 cells metastasis and invasion. Meanwhile, our study verified that HDAC6 regulate EMT by targeting TGF-{beta}1.In conclusion, HDAC6 inhibits the EMT of HCCLM3 cells and further inhibits the migration and invasion of HCCLM3 cells by downregulating the expression of TGF-{beta}1.