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. 2021 Feb 22;9:618586. doi: 10.3389/fcell.2021.618586

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Copyright © 2021 Hou, Song, Gao, Zhang, Wang, Liu, Fu, Cao and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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DNA polymerase delta 1, catalytic subunit (POLD1) rescued the effect of CCCTC-binding factor (CTCF) on POLD1 expression. (A,C) Protein expression of POLD1 and CTCF in 2BS (A) and WI38 cells (C). (B,D) mRNA expression of POLD1 and CTCF in 2BS (B) and WI38 (D) cells. Data were compared by Student’s t-test, and data are shown as the mean ± SEM, with three independent experiments in each group. *P < 0.05, **P < 0.01.