Journal
GENES
Volume 13, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/genes13101745
Keywords
PRAME; embryo stem cell; RA-resistant
Categories
Funding
- STAR Linea 1
- (University of Naples Federico II) [FRA_2021]
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Embryonic stem cells (ESCs) exhibit pluripotency heterogeneity corresponding to specific metastates. It has been discovered that retinoic acid (RA) can induce a specific 2C-like metastate, and Prame targets the genes Cdk8 and Cdkn2d, which are involved in cancer dedifferentiation and pluripotency.
Embryonic stem cells (ESCs) present a characteristic pluripotency heterogeneity correspondent to specific metastates. We recently demonstrated that retinoic acid (RA) induces an increase in a specific 2C-like metastate marked by target genes specific to the two-cell embryo stage in preimplantation. Prame (Preferentially expressed antigen in melanoma) is one of the principal actors of the pluripotency stage with a specific role in RA responsiveness. Additionally, PRAME is overexpressed in a variety of cancers, but its molecular functions are poorly understood. To further investigate Prame's downstream targets, we used a chromatin immunoprecipitation sequencing (ChIP-seq) assay in RA-enriched 2C-like metastates and identified two specific target genes, Cdk8 and Cdkn2d, bound by Prame. These two targets, involved in cancer dedifferentiation and pluripotency, have been further validated in RA-resistant ESCs. Here, we observed for the first time that Prame controls the Cdk8 and Cdkn2d genes in ESCs after RA treatment, shedding light on the regulatory network behind the establishment of naive pluripotency.
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