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No Intercellular Regulation of the Cell Cycle among Human Cervical Carcinoma HeLa Cells Expressing Fluorescent Ubiquitination-Based Cell-Cycle Indicators in Modulated Radiation Fields
| Title: | No Intercellular Regulation of the Cell Cycle among Human Cervical Carcinoma HeLa Cells Expressing Fluorescent Ubiquitination-Based Cell-Cycle Indicators in Modulated Radiation Fields |
| Authors: | Fukunaga, Hisanori Browse this author →KAKEN DB | | Kaminaga, Kiichi Browse this author | | Hirose, Eri Browse this author | | Watanabe, Ritsuko Browse this author | | Usami, Noriko Browse this author | | Prise, Kevin M. Browse this author | | Yokoya, Akinari Browse this author |
| Keywords: | cell cycle | | fluorescent ubiquitination-based cell-cycle indicator | | HeLa cell | | non-targeted effect | | microbeam | | radiotherapy |
| Issue Date: | Dec-2021 |
| Publisher: | MDPI |
| Journal Title: | International Journal of Molecular Sciences |
| Volume: | 22 |
| Issue: | 23 |
| Start Page: | 12785 |
| Publisher DOI: | 10.3390/ijms222312785 |
| Abstract: | The non-targeted effects of radiation have been known to induce significant alternations in cell survival. Although the effects might govern the progression of tumor sites following advanced radiotherapy, the impacts on the intercellular control of the cell cycle following radiation exposure with a modified field, remain to be determined. Recently, a fluorescent ubiquitination-based cell-cycle indicator (FUCCI), which can visualize the cell-cycle phases with fluorescence microscopy in real time, was developed for biological cell research. In this study, we investigated the non-targeted effects on the regulation of the cell cycle of human cervical carcinoma (HeLa) cells with imperfect p53 function that express the FUCCI (HeLa-FUCCI cells). The possible effects on the cell-cycle phases via soluble factors were analyzed following exposure to different field configurations, which were delivered using a 150 kVp X-ray irradiator. In addition, using synchrotron-generated, 5.35 keV monochromatic X-ray microbeams, high-precision 200 mu m-slit microbeam irradiation was performed to investigate the possible impacts on the cell-cycle phases via cell-cell contacts. Collectively, we could not detect the intercellular regulation of the cell cycle in HeLa-FUCCI cells, which suggested that the unregulated cell growth was a malignant tumor. Our findings indicated that there was no significant intercellular control system of the cell cycle in malignant tumors during or after radiotherapy, highlighting the differences between normal tissue and tumor characteristics. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/83949 |
| Appears in Collections: | 環境健康科学研究教育センター (Center for Environmental and Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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