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Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma [RIP-seq]

ABSTRACT: Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma [RIP-seq]

PROVIDER: PRJNA996918 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25374592_1.fastq.gz	Fastqsanger.gz
	SRR25374592_2.fastq.gz	Fastqsanger.gz
	SRR25374593_1.fastq.gz	Fastqsanger.gz
	SRR25374593_2.fastq.gz	Fastqsanger.gz
	SRR25374594_1.fastq.gz	Fastqsanger.gz

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Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma [RIP-seq]

Project description:Despite the advance in diagnosis and treatment, the prognosis of osteosarcoma patients remains unsatisfied. Therefore, it is imperative to identify novel therapeutic targets for osteosarcoma. Through RNA sequencing (RNA-seq) combined with functional screening, N4-acetylcytidine (ac4C) acetyltransferase 10 (NAT10) was identified as a candidate therapeutic target in osteosarcoma. Upregulated NAT10 correlated with poor prognosis in osteosarcoma patients and NAT10 knockout drastically inhibited cell proliferation and metastasis in vitro and in vivo. NAT10 enhanced mRNA stability and translation efficiency of activating transcription factor 4 (ATF4) through ac4C modification. ATF4 induced transcription of asparagine synthetase (ASNS), which catalyzes asparagine (Asn) biosynthesis. Asn promote protein and nucleotide synthesis, facilitating osteosarcoma progression. Overexpression of ATF4, ASNS or supplementation of asparagine rescue the tumor inhibitory effect of NAT10 knockout.

2024-08-09 | GSE237840 | GEO

Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma [mRNA-seq]

2024-08-09 | GSE237541 | GEO

Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma

Project description:Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma

| PRJNA995602 | ENA

ac4C RIP-seq analysis of AGS cells upon NAT10 knockout.

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.

2024-07-07 | GSE180494 | GEO

Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma [mRNA-seq]

Project description:Function and Mechanism of NAT10-mediated N4-acetylcytidine modification in osteosarcoma [mRNA-seq]

| PRJNA995608 | ENA

NAT10-mediated N4-acetylcytidine of RNA Contributes to Post-transcriptional Regulation of Mouse Oocyte Maturation In Vitro

Project description:N4-acetylcytidine (ac4C), a newly identified epigenetic modification within mRNAs, has been characterized as a crucial regulator of mRNA stability and translation efficiency. And NAT10 is the only known RNA acetyltransferase. In our study, we documented the down-regulated expression of both ac4C and NAT10 during meiotic maturation of mouse oocytes. NAT10 knockdown resulted in ac4C reduction and impaired mouse oocyte maturation in vitro. These results indicated that NAT10-mediated ac4C modification plays a critical regulatory role in oocyte meiotic maturation. We further performed high-throughput sequencing with NAT10-overexpressed HEK293T cells and NAT10-binding transcripts to investigate the genes modulated by NAT10-mediated ac4C modification.

2021-07-11 | GSE179429 | GEO

N4-acetylcytidine of Nop2 mRNA is Required to the Transition of Morula-to-Blastocyst

Project description:N-acetyltransferase 10 (NAT10)-mediated N4-acetylcytidine (ac4C) modification is crucial for mRNA stability and translation efficiency, yet the underlying function in mammalian preimplantation embryos remains unclear.

2023-07-17 | GSE236943 | GEO

NAT10-mediated N4-Acetylcytidine is Required for Spermatogenesis and Male Fertility

Project description:RNA modifications are rapidly emerging as critical post-transcriptional regulators which play a key role in various biological processes. N4-acetylcysteine (ac4C) is one of the “epi-transcriptome” that is present on tRNA, rRNA, mRNA and is also highly conserved in all species. However, cytidine acetylation's in vivo physiological functions remain poorly understood particularly in mammals. Here we demonstrate only known ac4C “writer”—N-acetyltransferase 10 (NAT10) plays essential roles in male reproduction. NAT10 protein and the ac4C modification have different patterns in different organs and there are dynamic changes during spermatogenesis. Germ cell-specific ablation of NAT10 severely inhibited meiotic entry and defects in synapse the homologous chromosomes, repair of DNA double-strand breaks (DSBs) during prophase of the first meiotic division. ac4C RIP-qPCR reveals genes functioning in meiotic prophase I show a decrease in Nat10fl/-; Stra8 GFP-Cre mouse testes. These findings highlight the crucial physiological functions of mRNA ac4C modification in male spermatogenesis and expand our understanding of mRNA ac4C modification in the regulation of specific physiological processes in vivo.

2022-11-16 | GSE191105 | GEO

Lactylation of NAT10 promotes N4‐acetylcytidine modification on tRNASer-CGA-1-1 to boost oncogenic DNA virus KSHV reactivation

Project description:N4-acetylcytidine (ac4C), a conserved but recently rediscovered RNA modification on tRNAs, rRNAs and mRNAs, is catalyzed by N-acetyltransferase 10 (NAT10). Lysine acylation is a ubiquitous protein modification that controls protein functions. Our latest study demonstrates a NAT10-dependent ac4C modification, which occurs on the polyadenylated nuclear RNA (PAN) encoded by oncogenic DNA virus Kaposi's sarcoma-associated herpesvirus (KSHV), can induce KSHV reactivation from latency and activate inflammasome. However, it remains unclear whether a novel lysine acylation occurs in NAT10 during KSHV reactivation and how this acylation of NAT10 regulates tRNAs ac4C modification. Here, we showed that NAT10 was lactylated by α-tubulin acetyltransferase 1 (ATAT1), as a writer at the critical domain, to exert RNA acetyltransferase function and thus increase the ac4C level of tRNASer-CGA-1-1. Mutagenesis at the ac4C site in tRNASer-CGA-1-1 inhibited its ac4C modifications, translation efficiency of viral lytic genes, and virion production. Mechanistically, KSHV PAN orchestrated NAT10 and ATAT1 to enhance NAT10 lactylation, resulting in tRNASer-CGA-1-1 ac4C modification, eventually boosting KSHV reactivation. Our findings reveal a novel post-translational modification in NAT10, as well as expand the understanding about tRNA-related ac4C modification during KSHV replication, which may be exploited to design therapeutic strategies for KSHV-related diseases.

2024-06-17 | GSE248740 | GEO

ac4C-RIP-seq to identify mRNA ac4C peaks

Project description:NAT10-catalyzed N4-acetylcytidine (ac4C) has emerged as a vital post-transcriptional modulator on the coding transcriptome by promoting mRNA stability. To explore the transcriptome-wide profile of ac4C modification, we mapped the locations of ac4C modification on wild-type (WT) hESCs and NAT10 KD hESCs by high-throughput ac4C RNA immunoprecipitation sequencing (ac4C-RIP-seq).

2023-08-25 | GSE226748 | GEO

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