The effects of WTAP on m6A mRNA modification pancreatic islets
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE215360 | GEO | 2023/01/31
REPOSITORIES: GEO
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Project description:The goal of this study is to investigate how WTAP regulates islet β-cell function. Islets were isolated from pancreatic islets of Wtapflox/flox and Wtap-βKO mice at 7 weeks old. One islet sample was combined from three mice. Total RNA was extracted using Tripure Isolation Reagent (Roche, Mannheim, Germany). Three independent biological replicates for each group were used for RNA-seq. RNA-seq was performed by deep sequencing using an Illumina Novaseq 6000 platform. Paired-end clean reads were aligned to the mouse reference genome(GRCm38/mm10) with Hisat2 v2.0.5, and the aligned reads were used to quantify mRNA expression by using featureCounts v1.5.0-p3. Our study represents the first detailed analysis of islet transcriptomes from Wtapflox/flox and Wtap-βKO mice, generated by RNA-seq technology. The RNA-seq analysis showed that 3015 genes were downregulated and 2900 genes were upregulated in the pancreatic islets of Wtap-βKO mice.
2023-01-31 | GSE215156 | GEO
Project description:Through m6A mRNA-profiling, we aim to characterize the m6A mRNA changes in the hearts of Wtapflox/flox and Wtap-CKO mice.
2024-01-14 | GSE227174 | GEO
Project description:Purpose: Through mRNA m6A-profiling, we aim to characterize the mRNA m6A changes in the liver obtained from Wtapflox/flox and Wtap-HKO mice. Methods: Total RNA was extracted using Tripure Isolation Reagent (Roche, Mannheim, Germany) from liver of Wtap flox/flox and Wtap-HKO mice at 8 weeks old. Each sample (300 μg total RNA) was pooled from 5 mice for each group. Two independent biological replicates for each group were used for m6ARIP-seq. Poly(A)+ RNA was purified using Dynabeads™ mRNA Purification Kit (Invitrogen) following the manufacturer’s instructions. Fragmented mRNA was incubated with m6A antibody (Synaptic System, 202003) for immunoprecipitation. Then, immunoprecipitated mRNAs or Input was used for library construction with NEBNext ultra RNA library prepare kit for Illumina (New England Biolabs).The library preparations were sequenced on an Illumina Novaseq 6000 platform with a paired-end read length of 150 bp according to the standard protocols. The m6A peaks were detected by exomePeak R package (version 2.16.0). The motif search was detected by HOMER(version 4.9.1). Conclusion: The mRNA m6A profiles in the liver of Wtapflox/flox and Wtap-HKO mice were characterized.
2022-06-02 | GSE192884 | GEO
Project description:Purpose: Through mRNA m6A-profiling, we aim to characterize the mRNA m6A changes in iBAT obtained from Wtapflox/flox and Wtap-BKO mice. Methods: Total RNA was extracted using Tripure Isolation Reagent (Roche, Mannheim, Germany) from iBAT of Wtap flox/flox and Wtap-BKO mice at 8 weeks old. Each sample (300 μg total RNA) was pooled from 8 mice for each group. Poly(A)+ RNA was purified using Dynabeads™ mRNA Purification Kit (Invitrogen) following the manufacturer’s instructions. Fragmented mRNA was incubated with m6A antibody (Synaptic System, 202003) for immunoprecipitation. Then, immunoprecipitated mRNAs or Input was used for library construction with NEBNext ultra RNA library prepare kit for Illumina (New England Biolabs).The library preparations were sequenced on an Illumina Novaseq 6000 platform with a paired-end read length of 150 bp according to the standard protocols. The m6A peaks were detected by exomePeak R package (version 2.16.0). The motif search was detected by HOMER(version 4.9.1). Conclusion: The iBAT mRNA m6A profiles in Wtapflox/flox and BKO mice were characterized.
2022-10-19 | GSE202668 | GEO
Project description:Purpose: Through Single-nucleus transcriptome analysis, we aim to characterize the changes of cell heterogeneity in iBAT obtained from Wtap-BKO mice compared with that in Wtapflox/flox mice. Methods: Nuclei were isolated from iBAT of Wtap flox/flox and Wtap-BKO mice at 8 weeks old. Each sample was pooled from 4 mice for each group. Conclusion: The Single-nucleus transcriptomes of iBAT in Wtapflox/flox and BKO mice were characterized.
2022-10-20 | GSE202630 | GEO
Project description:The effects of WTAP on m6A mRNA modification pancreatic islets
| PRJNA889846 | ENA
Project description:Purpose: The goal of this study is to compare transcriptome profilings of liver from Wtapflox/flox and hepatocyte-specific Wtap knockout (HKO) mice. Methods: Total RNA was extracted using Tripure Isolation Reagent (Roche, Mannheim, Germany) from livers of Wtap flox/flox and Wtap-HKO mice at 8 weeks old. mRNA profiles were generated by deep sequencing using an Illumina Novaseq platform. Paired-end clean reads were aligned to the mouse reference genome(Ensemble_GRCm38.p6) with TopHat (version 2.0.12), and the aligned reads were used to quantify mRNA expression by using HTSeq-count (version 0.6.1). Conclusion: Our study represents the first detailed analysis of hepatic mRNA profiles in Wtapflox/flox and Wtap-HKO mice at 8 weeks old, generated by RNA-seq technology. Our results showed that 3486 genes were downregulated, and 3706 genes were upregulated. Gene ontology (GO) analysis showed that downregulated genes were associated with small molecule catabolic process, fatty acid metabolic process, amino acid metabolic process, steroid metabolic process, cholesterol metabolic process, xenobiotic metabolic process, fatty acid beta-oxidation, alcohol metabolic process, and glucose metabolic process, whereas the upregulated genes were associated with wound healing, leukocyte migration, chemotaxis, and positive regulation of cytokine production.
2022-06-02 | GSE168850 | GEO
Project description:Purpose: The goal of this study is to determine whether hepatic deletion of Wtapaffects chromatin accessibility. Methods: Each liver sample was pooled from three Wtap-HKO and Wtapflox/flox mice, respectively. Three independent biological replicates of each group were used for ATAC-seq. Nuclei was extracted from liver samples, and the nuclei pellet was resuspended in the Tn5 transposase reaction mix. The transposition reaction was incubated at 37°C for 30 min. Equimolar Adapter1 and Adatper 2 were added after transposition, PCR was then performed to amplify the library. After the PCR reaction, libraries were purified with the AMPure beads and library quality was assessed with Qubit. The clustering of the index-coded samples was performed on a cBot Cluster Generation System using TruSeq PE Cluster Kit v3-cBot-HS (Illumina) according to the manufactuer’s instructions. After cluster generation, the library preparations were sequenced on an Illumina NovaSeq 6000 platform and 150 bp paired-end reads were generated. ATAC-seq analysis was performed using a standard protocol. Results: The hepatic chromatin accessibility in Wtapflox/flox and Wtap-HKO mice were characterized.
2022-06-02 | GSE168945 | GEO
Project description:N(6)-methyladenosine (m6A) plays an important role in the tumorigenesis and progression of cancers. However, the clinical significance of m6A and their regulatory mechanisms in nasopharyngeal carcinogenesis (NPC) remain largely unknown. In this study, we used the microarray analysis to study WTAP-mediated m6A modification profiles in human nasopharyngeal carcinoma cell line, HONE-1, by comparing 3 pairs of samples with or without WTAP knockdown.
2022-06-15 | GSE160644 | GEO
Project description:WTAP is an essential component of the RNA N-6-methyladenosine (m6A) modification complexes that guides METLL3-METLL14 heteroduplexes to target RNAs in the nucleus of mammalian cells. Through mining the genotype-tissue expression (GTEx) datasets, we initially found that TTC22 expression was highly correlated with WTAP and FTO in many normal human tissues. Our experimental results indicate that TTC22 could directly capture RNA binding protein RPL4, induce the binding between RPL4 and WTAP mRNA in the cytoplasm, which increased the m6A level, induced alterative splicing, enhanced the stability and translation efficiency of WTAP mRNA, and consequently upregulated the level of total m6A RNA. These results indicate that WTAP mRNA is a m6A target and there is a positive feedback loop between total m6A and WTAP expression. YTHDF1 was found to be an essential m6A WTAP mRNA binding protein. Downregulation of RPL4, WTAP, or YTHDF1 expression could reverse TTC22-enhanced total m6A RNA level. m6A-specific antibody immunoprecipitated RNA-sequencing (meRIP-seq) demonstrated that TTC22 caused dramatic expression changes of genes related to metabolic pathways, ribosome biogenesis, and RNA spliceosome. Furthermore, we also found that TTC22 upregulated the expression of epithelial-mesenchymal transition (EMT)-related gene SNAI1 via m6A, and promoted metastasis of colon cancer in vitro and in mice. In conclusion, our study illustrates that WTAP mRNA is a m6A target using YTHDF1 as the binding protein. TTC22 could upregulate the levels of WTAP expression and total m6A RNA through the PRL4 binding. The m6A-mediated upregulation of SNAI1 expression may contribute to TTC22-enhanced colon cancer metastasis.
2024-11-10 | GSE188521 | GEO