H4K20me1 plays a dual role in transcriptional regulation of regeneration and axis patterning in Hydra.
Life Sci Alliance
; 6(5)2023 05.
Article
em En
| MEDLINE
| ID: mdl-36944423
ABSTRACT
The evolution of the first body axis in the animal kingdom and its extensive ability to regenerate makes Hydra, a Cnidarian, an excellent model system for understanding the underlying epigenetic mechanisms. We identify that monomethyltransferase SETD8 is critical for regeneration in Hydra because of its conserved interaction with ß-catenin to fine-tune the associated gene regulatory network. Inhibition of SETD8 activity abolishes head and foot regeneration in Hydra Furthermore, we show that H4K20me1, the histone mark imparted by SETD8, colocalizes with the transcriptional activation machinery locally at the ß-catenin-bound TCF/LEF-binding sites on the promoters of head-associated genes, marking an epigenetic activation mode. In contrast, genome-wide analysis of the H4K20me1 occupancy revealed a negative correlation with transcriptional activation. We propose that H4K20me1 acts as a general repressive histone mark in Cnidaria and describe its dichotomous role in transcriptional regulation in Hydra.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hydra
Limite:
Animals
Idioma:
En
Revista:
Life Sci Alliance
Ano de publicação:
2023
Tipo de documento:
Article