Title |
Synergistic enhancement of NK cell-mediated cytotoxicity by combination of histone deacetylase inhibitor and ionizing radiation
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Published in |
Radiation Oncology, February 2014
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DOI | 10.1186/1748-717x-9-49 |
Pubmed ID | |
Authors |
Cheol-Hun Son, Jin-Hee Keum, Kwangmo Yang, Jiho Nam, Mi-Ju Kim, Sun-Hee Kim, Chi-Dug Kang, Sae-Ock Oh, Chi-Dae Kim, You-Soo Park, Jaeho Bae |
Abstract |
The overexpression of histone deacetylase (HDAC) and a subsequent decrease in the acetylation levels of nuclear histones are frequently observed in cancer cells. Generally it was accepted that the deacetylation of histones suppressed expression of the attached genes. Therefore, it has been suggested that HDAC might contribute to the survival of cancer cells by altering the NKG2D ligands transcripts. By the way, the translational regulation of NKG2D ligands remains unclear in cancer cells. It appears the modulation of this unclear mechanism could enhance NKG2D ligand expressions and the susceptibility of cancer cells to NK cells. Previously, it was reported that irradiation can increase the surface expressions of NKG2D ligands on several cancer cell types without increasing the levels of NKG2D ligand transcripts via ataxia telangiectasia mutated and ataxia telangiectasia and Rad3 related (ATM-ATR) pathway, and suggested that radiation therapy might be used to increase the translation of NKG2D ligands. |
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