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- W4225884060 abstract "We examined the effects of DNA methyltransferase inhibitor - RG108, and histone deacetylase inhibitor - SAHA, on the reprogramming parameters of cloned mouse embryos produced by somatic cell nuclear transfer into oocytes. The programming parameters studied included dynamics of histone reacetylation, developmental rate, DNA methylation, and transcript levels of genes, all of which are pivotal to lineage specification and blastocyst formation. At the pronuclear stage, somatic nucleus-transplanted oocytes treated with 5 µM SAHA presented higher histone acetylation at H3K9, H3K14, H4K16 and H4K12, compared to untreated clones (p < 0.05). At the morula stage, cloned embryos treated with 5 μM RG108 or 5 μM SAHA presented lower DNA methylation intensity compared to untreated clones (p < 0.05), resembling the intensity levels of fertilized embryos. However, these effects were not observed when RG108 and SAHA were used in combination. The rate of morula formation was significantly higher in cloned embryos treated with 5 µM SAHA than in untreated clones, whereas treatment with RG108 resulted in no obvious effects on morula formation rates. On the other hand, the combined treatment with RG108 and SAHA resulted in inferior rates of cloned morula formation, compared to untreated clones. At the blastocyst stage, the aberrant expression levels of key developmental genes Oct4 and Cdx2, but not Nanog, were corrected in cloned embryos by the treatment with RG108. This is similar to the intensity levels seen in fertilized embryos. The expression of Rpl7l1 gene was significantly higher in embryos treated with both RG108 and SAHA than in untreated and in control groups. In summary, the present study showed that SAHA and RG108, when applied separately, improve the rate and quality of cloned mouse embryos." @default.
- W4225884060 created "2022-05-05" @default.
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- W4225884060 date "2022-04-06" @default.
- W4225884060 modified "2023-09-28" @default.
- W4225884060 title "Epigenetic reprogramming in cloned mouse embryos following treatment with DNA methyltransferase and histone deacetylase inhibitors" @default.
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- W4225884060 doi "https://doi.org/10.1080/19396368.2022.2036868" @default.
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