PMID- 22932408 OWN - NLM STAT- MEDLINE DCOM- 20130314 LR - 20181023 IS - 0529-5807 (Print) IS - 0529-5807 (Linking) VI - 41 IP - 6 DP - 2012 Jun TI - [Down-regulation of histone deacetylase 2 induces cell apoptosis and inhibits cell proliferation and migration of laryngeal squamous cell carcinoma cells]. PG - 396-9 LID - 10.3760/cma.j.issn.0529-5807.2012.06.008 [doi] AB - OBJECTIVE: To investigate the effects of histone deacetylase 2 (HDAC2) expression on cell proliferation, apoptosis and migration of laryngeal squamous cell carcinoma (LSCC) Hep-2 cells. METHODS: HDAC2 siRNA and control siRNA were transfected into LSCC Hep-2 cells by lipofectamine 2000, and cells were divided into three experimental groups: untreated group, control siRNA group and HDAC2 siRNA transfection group. Western blotting was utilized to detect the expression of HDAC2 protein in Hep-2 cells. Cell proliferation and apoptosis were investigated by CCK-8 kit and flow cytometry, respectively. Boyden chamber was used to study cell migration. Expressions of cell apoptosis and cell migration related proteins were detected by Western blotting. RESULTS: HDAC2 siRNA significantly down-regulated the expression of HDAC2 protein in LSCC Hep-2 cells. Down-regulation of HDAC2 expression coincided with an inhibition of cell proliferation and migration along with an induced cell apoptosis of Hep-2 cells. Moreover, down-regulation of HDAC2 expression significantly increased the expressions of caspase-3 and caspase-9 proteins but decreased the expressions of matrix metalloproteinases (MMP)-2 and MMP-9 proteins. CONCLUSIONS: HDAC2 may play a pivotal role in the initiation and development of LSCC. Down-regulation of HDAC2 expression mediates cell apoptosis. Cell migration inhibition may be tightly associated with overexpression of caspase-3 and caspase-9 along with down-regulation of MMP-2 and MMP-9 expressions. FAU - Yuan, Lin-lin AU - Yuan LL AD - Department of Otorhinolaryngology, the First Affiliated Hospital of Zhengzhou University, China. FAU - Lou, Wei-hua AU - Lou WH FAU - Sang, Jian-zhong AU - Sang JZ FAU - Li, Sheng-lei AU - Li SL FAU - Li, Wen-cai AU - Li WC LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Bing Li Xue Za Zhi JT - Zhonghua bing li xue za zhi = Chinese journal of pathology JID - 0005331 RN - 0 (RNA, Small Interfering) RN - EC 3.4.22.- (CASP3 protein, human) RN - EC 3.4.22.- (CASP9 protein, human) RN - EC 3.4.22.- (Caspase 3) RN - EC 3.4.22.- (Caspase 9) RN - EC 3.4.24.24 (MMP2 protein, human) RN - EC 3.4.24.24 (Matrix Metalloproteinase 2) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) RN - EC 3.5.1.98 (HDAC2 protein, human) RN - EC 3.5.1.98 (Histone Deacetylase 2) SB - IM MH - *Apoptosis MH - Carcinoma, Squamous Cell/metabolism/*pathology MH - Caspase 3/metabolism MH - Caspase 9/metabolism MH - Cell Line, Tumor MH - *Cell Movement MH - *Cell Proliferation MH - Down-Regulation MH - Histone Deacetylase 2/genetics/*metabolism MH - Humans MH - Laryngeal Neoplasms/metabolism/*pathology MH - Matrix Metalloproteinase 2/metabolism MH - Matrix Metalloproteinase 9/metabolism MH - RNA Interference MH - RNA, Small Interfering/genetics MH - Transfection EDAT- 2012/08/31 06:00 MHDA- 2013/03/15 06:00 CRDT- 2012/08/31 06:00 PHST- 2012/08/31 06:00 [entrez] PHST- 2012/08/31 06:00 [pubmed] PHST- 2013/03/15 06:00 [medline] AID - 10.3760/cma.j.issn.0529-5807.2012.06.008 [doi] PST - ppublish SO - Zhonghua Bing Li Xue Za Zhi. 2012 Jun;41(6):396-9. doi: 10.3760/cma.j.issn.0529-5807.2012.06.008.