Project description:Global ac4C-modified mRNAs in the uterus of wild-type mouse were analyzed by using ac4C RNA immunoprecipitation sequencing (acRIP-seq)
Project description:To determine the role of NAT10 in promoting the progression of ccRCC, we performed RNA sequencing (RNA-Seq) and ac4C-modified RNA immunoprecipitation sequencing (acRIP-seq) on four pairs of ccRCC tissues and their adjacent tissues. A comprehensive analysis of acRIP-seq and RNA-seq showed that the expression and acetylation levels of 199 transcripts were increased . We selected 11 candidate genes of interest and analyzed their acetylation levels. Since ac4C modification can improve mRNA stability, the 11 candidate genes were verified, and the results showed that only NFE2L3 mRNA levels decreased in 786-O cells and A498 cells after NAT10 stable knockdown , so we decided to study the mechanism of action of NFE2L3 in ccRCC.
Project description:N4-acetylcytidine (ac4C), a conserved chemical modification in eukaryotic prokaryotes that is catalyzed by the N-acetyltransferase 10 (NAT10) enzyme, plays a crucial role in promoting mRNA stability and translation. However, the biological function and mechanisms of NAT10-mediated ac4C in human cancer were poorly defined. In order to investigate the regulatory mechanism of NAT10 in gastric cancer, we performed ac4C RIP-seq(acRIP-seq) analysis in AGS cells with NAT10 knockout compared with control in two repeats.
Project description:Using acRIP-seq, we present transcriptome-wide atlases of ac4C in wild type rice and osnat10. Analysis of ac4C distribution reveals ac4C is greatly reduced in osnat10 compared to wild type. We then performed RNA-seq to analyze differentially expressed genes between wild type and osnat10.
Project description:Vascular smooth muscle cells (VSMCs) phenotype switching is a pathological hallmark in various cardiovascular diseases. N4-acetylcytidine (ac4C), catalyzed by N-acetyltransferase 10 (NAT10), is well conserved in the enzymatic modification of RNA. NAT10-mediated ac4C acetylation is involved in various physiological and pathological processes, including cardiac remodeling. However, the biological functions and underlying regulatory mechanisms of mRNA ac4C modifications in vascular diseases remain elusive. By combining in vitro and in vivo vascular injury models, we identified NAT10 as a crucial protein involved in the promotion of postinjury neointima formation as well as VSMCs proliferation. The potential mechanisms of NAT10 in vascular neointima formation were clarified by RNA sequence (RNA-seq), acetylated mRNA immunoprecipitation sequence (acRIP-seq), and RNA binding protein immunoprecipitation sequence (RIP-seq). NAT10 and ac4C modification were upregulated in injured human and rodent arteries. Deletion of NAT10 in VSMCs effectively reduces postinjury neointima formation and VSMCs phenotype switching. Further RNA-seq, RIP-seq, and acRIP-seq revealed that NAT10, by its ac4C modification, directly interacts with genes, including integrin-β1 (ITGB1) and collagen type I alpha 2 chain (Col1a2) mRNAs. NAT10-mediated ac4C consequently increased ITGB1 mRNA stability and its downstream focal adhesion kinase (FAK) signaling, thereby directly influencing the proliferation of VSMCs and vascular remodeling. The regulation of NAT10 on VSMC phenotype is of translational significance because administration of remodelin, a NAT10 inhibitor, effectively prevents neointima formation by suppressing VSMCs proliferation and downregulating of ITGB1 expression and deactivating its FAK signaling. Our study reveals that NAT10 promotes vascular remodeling via mRNA Ac4c acetylation, which may be a promising therapeutic target against vascular remodeling.
Project description:Using acRIP-seq, we present transcriptome-wide atlases of ac4C in Arabidopsis thaliana and Oryza sativa. Analysis of ac4C distribution reveals ac4C is enriched near translation start sites in rice while near translation start sites and end sites in Arabidopsis. Further analysis shows ac4C contributes to RNA stability, splicing and translation. We then performed NaCNBH3 treatment and RNA-seq to measure C to T mutation and RNC-seq to measure translation efficiency in Arabidopsis.
Project description:To identify the ac4C acetylation in the human multiple meloma cells .acRIP-seq and RNA-seq experiments of human multiple myeloma cells including NAT10 overexpression and controls were conducted.
Project description:In our study, we aimed to identify the mechanisms closely related to ac4C. Through acRIP-seq analysis, we found that NAT10 enhances the stability of HMOX1 via ac4C modification, which leads to iron overload and lipid peroxides. This forms a positive feedback loop that exacerbates DVT.
