TY - JOUR AB - Histone deacetylase inhibitors (HDACIs) can inhibit cell proliferation, induce cell cycle arrest, and stimulate the apoptosis of cancer cells. We investigated the effects of a novel HDACI, Scriptaid, on the Ishikawa endometrial cancer cell line, SK-OV-3 ovarian cancer cell line, and normal human endometrial epithelial cells. Endometrial and ovarian cancer cells were treated with various concentrations of Scriptaid, and its effect on cell growth, cell cycle, apoptosis, and related measurements was investigated. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays showed that all endometrial and ovarian cancer cell lines were sensitive to the growth inhibitory effect of Scriptaid, although normal endometrial epithelial cells were viable after treatment with the same doses of Scriptaid that induced the growth inhibition of endometrial and ovarian cancer cells. Cell cycle analysis indicated that their exposure to Scriptaid decreased the proportion of cells in the S phase and increased the proportion in the G0/G1 and/or G2/M phases of the cell cycle. Induction of apoptosis was confirmed by annexin V staining of externalized phosphatidylserine and loss of the transmembrane potential of mitochondria. This induction occurred in concert with the altered expression of genes related to cell growth, malignant phenotype, and apoptosis. Furthermore, Scriptaid treatment of these cell lines increased acetylation of H3 and H4 histone tails. These results raise the possibility that Scriptaid may prove particularly effective in the treatment of endometrial and ovarian cancers. AD - Department of Obstetrics and Gynecology, Oita University Faculty of Medicine, Oita 879-5593, Japan. takai@med.oita-u.ac.jp null AU - Takai,Noriyuki AU - Ueda,Tami AU - Nishida,Masakazu AU - Nasu,Kaei AU - Narahara,Hisashi DA - 2006/02/01 DO - 10.3892/ijmm.17.2.323 EP - 329 IS - 2 JO - Int J Mol Med PY - 2006 SN - 1107-3756 1791-244X SP - 323 ST - A novel histone deacetylase inhibitor, Scriptaid, induces growth inhibition, cell cycle arrest and apoptosis in human endometrial cancer and ovarian cancer cells T2 - International Journal of Molecular Medicine TI - A novel histone deacetylase inhibitor, Scriptaid, induces growth inhibition, cell cycle arrest and apoptosis in human endometrial cancer and ovarian cancer cells UR - https://doi.org/10.3892/ijmm.17.2.323 VL - 17 ER -