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The effect of an NAT10 inhibitor (remodelin) on inflammation-related genes in the treatment of thalamic hemorrhage based on RNA sequencing data

ABSTRACT: Thalamic hemorrhage is a disease caused by hemorrhage of the thalamic brain parenchyma and is accompanied by an inflammatory response during development. NAT10 has been associated with a wide range of diseases. The aim of this study was to explore the molecular mechanisms associated with the use of the NAT10 inhibitor (Remodelin) for the treatment of thalamic hemorrhage from an inflammatory perspective.

ORGANISM(S): Mus musculus

PROVIDER: GSE275066 | GEO | 2025/11/11

REPOSITORIES: GEO

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Project description:Background: Heart failure (HF), characterized by cardiac remodeling, is associated with abnormal epigenetic processes and aberrant gene expression. Here, we aimed to elucidate the effects and mechanisms of N-acetyltransferase 10 (NAT10)-mediated N4?acetylcytidine (ac4C) acetylation during cardiac remodeling. Methods: NAT10 and ac4C expression were detected in both human and mouse subjects with cardiac remodeling through multiple assays. Subsequently, acetylated RNA immunoprecipitation and sequencing (acRIP-seq), thiol (SH)-linked alkylation for the metabolic sequencing of RNA (SLAM-seq), and ribosome sequencing (Ribo-seq) were employed to elucidate the role of ac4C-modified post-transcriptional regulation in cardiac remodeling. Additionally, functional experiments involving the overexpression or knockdown of NAT10 were conducted in mice models challenged with Ang II and transverse aortic constriction (TAC). Results: NAT10 expression and RNA ac4C levels were increased in in vitro and in vivo cardiac remodeling models, as well as in patients with cardiac hypertrophy. Silencing and inhibiting NAT10 attenuated Ang II-induced cardiomyocyte hypertrophy and cardio-fibroblast activation. Next-generation sequencing revealed ac4C changes in both mice and humans with cardiac hypertrophy were associated with changes in global mRNA abundance, stability and translation efficiency. Mechanistically, NAT10 could enhance the stability and translation efficiency of CD47 and ROCK2 transcripts by upregulating their mRNA ac4C modification, thereby resulting in an increase in their protein expression during cardiac remodeling. Furthermore, the administration of Remodelin, a NAT10 inhibitor, has been shown to prevent cardiac functional impairments in mice subjected to TAC by suppressing cardiac fibrosis, hypertrophy, and inflammatory responses, while also regulating the expression levels of CD47 and ROCK2. Conclusions: Therefore, our data suggest that modulating epitranscriptomic processes, such as ac4C acetylation through NAT10, may be a promising therapeutic target against cardiac remodeling.

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The effect of an NAT10 inhibitor (remodelin) on inflammation-related genes in the treatment of thalamic hemorrhage based on RNA sequencing data

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