登入 臺大生技所
年度 | 2023 |
---|---|
全部作者 | 宋麗英 ,Tsai, LK., Peng, M., Chang, CC., Wen, L., Liu, L., Liang, X., Chen, Y. E., Xu, J., Sung, LY. |
作者類別 | 通訊作者 |
論文名稱 | ZSCAN4 interacts with PARP1 to promote DNA repair in mouse embryonic stem cells |
期刊名稱 | Cell Biosci. |
卷數 | 13 |
期數 | 1 |
頁碼 | 193-193 |
期刊等級 | SCI |
發表日期 | 2023-10-24 |
ISSN(ISBN) | ISSN: 2045-3701 |
摘要 | Background: In eukaryotic cells, DNA double strand breaks (DSB) are primarily repaired by canonical non-homologous end joining (c-NHEJ), homologous recombination (HR) and alternative NHEJ (alt-NHEJ). Zinc finger and SCAN domain containing 4 (ZSCAN4), sporadically expressed in 1-5% mouse embryonic stem cells (mESCs), is known to regulate genome stability by promoting HR. Results: Here we show that ZSCAN4 promotes DNA repair by acting with Poly (ADP-ribose) polymerase 1 (PARP1), which is a key member of the alt-NHEJ pathway. In the presence of PARP1, ZSCAN4-expressing mESCs are associated with lower extent of endogenous or chemical induced DSB comparing to ZSCAN4-negative ones. Reduced DSBs associated with ZSCAN4 are abolished by PARP1 inhibition, achieved either through small molecule inhibitor or gene knockout in mESCs. Furthermore, PARP1 binds directly to ZSCAN4, and the second ⍺-helix and the fourth zinc finger motif of ZSCAN4 are critical for this binding. Conclusions: These data reveal that PARP1 and ZSCAN4 have a protein-protein interaction, and shed light on the molecular mechanisms by which ZSCAN4 reduces DSB in mESCs. |
語言 | 中文 |
參考連結 | https://cellandbioscience.biomedcentral.com/articles/10.1186/s13578-023-01140-1 |