| First Author | Hanzawa N | Year | 2020 |
| Journal | Sci Rep | Volume | 10 |
| Issue | 1 | Pages | 5181 |
| PubMed ID | 32198422 | Mgi Jnum | J:286977 |
| Mgi Id | MGI:6405102 | Doi | 10.1038/s41598-020-62035-6 |
| Citation | Hanzawa N, et al. (2020) Targeted DNA demethylation of the Fgf21 promoter by CRISPR/dCas9-mediated epigenome editing. Sci Rep 10(1):5181 |
| abstractText | Recently, we reported PPARalpha-dependent DNA demethylation of the Fgf21 promoter in the postnatal mouse liver, where reduced DNA methylation is associated with enhanced gene expression after PPARalpha activation. However, there is no direct evidence for the effect of site-specific DNA methylation on gene expression. We employed the dCas9-SunTag and single-chain variable fragment (scFv)-TET1 catalytic domain (TET1CD) system to induce targeted DNA methylation of the Fgf21 promoter both in vitro and in vivo. We succeeded in targeted DNA demethylation of the Fgf 21 promoter both in Hepa1-6 cells and PPARalpha-deficient mice, with increased gene expression response to PPARalpha synthetic ligand administration and fasting, respectively. This study provides direct evidence that the DNA methylation status of a particular gene may determine the magnitude of the gene expression response to activation cues. |
