Title of article :
188Rhenium Treatment Induces DACT2 Expression in Hepatocellular Carcinoma Cells
Author/Authors :
Asadian ، Samieh Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases - Qazvin University of Medical Sciences , Piryaei ، Abbas Department of Biology and Anatomical Sciences, Department of Tissue Engineering and Applied Cell Sciences - School of Medicine, School of Advanced Technologies in Medicine - Shahid Beheshti University of Medical Sciences , Farzaneh ، Zahra Department of Regenerative Medicine, Department of Stem Cells and Developmental Biology - Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology - Academic Center for Education, Culture and Research (ACECR) , Aziz Kalantari ، Bagher Department of Organic Chemistry - Islamic Azad University, Karaj Branch , Azad ، Mehdi Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases - Qazvin University of Medical Sciences , Moghbeli Nejad ، Sahar Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases - Qazvin University of Medical Sciences , Davarpanah ، Mohamad Reza Department of Physical Chemistry - Faculty of Science - University of Tehran , Mohamadi ، Morteza Department of Physical Chemistry - Faculty of Science - University of Tehran , Shpichka ، Anastasia Institute for Regenerative Medicine, World-Class Research Center Digital biodesign and personalized healthcare - Sechenov First Moscow State Medical University , Gheibi ، Nematolah Cellular and Molecular Research Center, Research Institute for Prevention of Non-Communicable Diseases - Qazvin University of Medical Sciences , Timashev ، Peter Institute for Regenerative Medicine, World-Class Research Center Digital biodesign and personalized healthcare - Sechenov First Moscow State Medical University , Vosough ، Massoud Department of Regenerative Biomedicine, Department of Stem Cells and Developmental Biology - Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology - Academic Center for Education, Culture and Research (ACECR)
Abstract :
Objectives: Epigenetic alterations, including any change in DNA methylation pattern, could be the missing link of understanding radiation-induced genomic instability. Dapper, Dishevelled-associated antagonist of β-catenin homolog 2 (DACT2) is a tumor suppressor gene regulating Wnt/β-catenin. In hepatocellular carcinoma (HCC), DACT2 is hypermethylated, while methylation status of its promoter regulates the corresponding expression. Radionuclides have been used to reduce proliferation and induce apoptosis in cancerous cells. Epigenetic impact of radionuclides as therapeutic agents for treatment of HCC is still unknown. The aim of this study was to evaluate epigenetic impact of 188Rhenium perrhenate (188ReO4) on HCC cells. Material and Methods: In this in vitro experimental study, HepG2 and Huh7 cells were treated with 188ReO4, receiving 55 and 73 Mega Becquerel (MBq) exposures, respectively. For cell viability measurement, live/dead staining was carried out 18, 24, and 48 hours post-exposure. mRNA expression level of β-Catenin, Wnt1, DNMT1, DACT2 and WIF- 1 genes were quantified by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Then, possible regulatory impact of DACT2 upregulation was investigated through evaluating methylation-specific PCR (MS-PCR). Results: Results showed that viability of both cells was reduced after treatment with 188ReO4 at three time points postexposure compared to the control groups. The qRT-PCR results showed that DACT2 mRNA level was significantly increased at 24, and 48 hours post-exposure in HepG2 cells compared to the control group, while, no significant change was observed in Huh7 cells. Methylation pattern of DACT2 promoter remained unchanged in HepG2 and Huh7 cells. Conclusion: Treatment with 188ReO4 reduced viability of HepG2 and Huh7 cells. Although DACT2 expression was increased after 188ReO4 exposure in HepG2 cells, methylation pattern of its promoter remained unchanged. This study assessed impacts of the 188 ReO4 β-irradiation on expression and induction of DACT2 epigenetic aberrations as well as the correlation of this agent with viability of cells.
Keywords :
DNA methylation , Epigenetics , Hepatocellular Carcinoma , Radionuclide
Journal title :
Cell Journal (Yakhteh)
Journal title :
Cell Journal (Yakhteh)
