Effect of knockdown of KIAA1429 on gene expression in HepG2 cells
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE235253 | GEO | 2025/06/19
REPOSITORIES: GEO
Similar Datasets
Project description:Effect of knockdown of KIAA1429 on gene expression in HepG2 cells
| PRJNA985622 | ENA
Project description:We report the high-throughput RNA sequencing on human aortic smooth muscle cells (HASMCs) transfected with siRNA targeting OTUB1 (si-OTUB1) or control siRNA (si-NC). Cells were treated with PDGF-BB for 48 hours.
2025-05-07 | GSE232121 | GEO
Project description:N6-methyladenosine (m6A) modification, as the most abundant internal methylation of eukaryotic RNA transcripts, is critically implicated in RNA processing, decay, transport and translation. Here we showed that KIAA1429, the largest known component in the m6A methyltransferase complex, was considerably upregulated in hepatocellular carcinoma (HCC) tissues. High expression of KIAA1429 was significantly associated with the malignant clinical features and the poor prognosis of HCC patients. Silencing KIAA1429 suppressed the cell proliferation and metastasis in vitro and in vivo. Integrated MeRIP-seq, RIP-seq and RNA-seq data identified GATA3 as the direct downstream target of KIAA1429-mediated m6A modification. KIAA1429 knockdown markedly impaired the m6A levels of GATA3 mRNA and increased the expression of GATA3. Mechanistically, KIAA1429 induced the m6A methylation on 3’ UTR of GATA3 pre-mRNA, leading to the separation of RNA-binding protein HuR and the degradation of GATA3 pre-mRNA, which was followed by the downregulation of GATA3. Strikingly, a long noncoding RNA (lncRNA) GATA3-AS, transcribed from the antisense strand of GATA3 gene, functioned as a cis-acting element for the preferential interaction of KIAA1429 with GATA3 pre-mRNA. Accordingly, we found that the tumor growth and metastasis driven by KIAA1429 or GATA3-AS were mediated by GATA3. Patients with low KIAA1429 and high GATA3 expressions showed greatly better poor overall survival and disease-free survival. In conclusion, our study proposed a complex KIAA1429-GATA3 regulatory model based on m6A modification and provided insights into the epi-transcriptomic dysregulation in hepatocarcinogenesis and metastasis.
2019-07-27 | GSE134978 | GEO
Project description:KIAA1429 is an integral component of the m6A methyltransferase complex, essential for facilitating the interaction between the catalytic core components METTL3 and METTL14. However, the mechanisms by which KIAA1429 influences clear cell Renal cell carcinoma (ccRCC) remain incompletely elucidated. Analysis of the TCGA and GEO database confirmed that KIAA1429 was significantly upregulated in ccRCC samples, which correlated with poor survival. Additionally, qRT-PCR, Western Blot and IHC detection revealed significantly upregulated levels of KIAA1429 in ccRCC tissues. Moreover, multivariable Cox regression analysis showed that patients with ccRCC with high KIAA1429 expression had a poor clinical prognosis. Notably, silencing KIAA1429 significantly inhibited the proliferation, migration and invasion of ccRCC cells. Similarly, KIAA1429 knockdown also significantly inhibited the growth of ccRCC cells in nude mice. Mechanistically, KIAA1429 silencing significantly reduced the overall level of m6A in, the stability of MYC mRNA and the mRNA and protein expressions of MYC in ccRCC cells. Furthermore, RIP-qRT-PCR experiments showed that KIAA1429 could directly bind to MYC mRNA. MeRIP assay revealed that KIAA1429 knockdown resulted in a significant decrease in the m6A level of MYC mRNA in ccRCC cells. In conclusion, KIAA1429 regulates the proliferation, migration and invasion of ccRCC cells by stabilizing MYC mRNA in an m6A-dependent manner. Therefore, targeting the KIAA1429-MYC signalling pathway emerges as a potential strategy for the treatment of renal cell carcinoma.
2024-09-10 | GSE276431 | GEO
Project description:N6-methyladenosine (m6A) is the most abundant internal RNA modification in mRNA molecules and plays important roles in multiple important biological processes including cancer development. KIAA1429/VIRMA is an important component of m6A methyltransferase complex to facilitate depositing m6A modification in RNA molecules. Here we found that KIAA1429/VIRMA was overexpressed in breast cancer patients among other m6A related enzymes. Breast cancer patients with higher KIAA1429 expression have worse survival compared with control group. In addition, KIAA1429/VIRMA protein mislocated in cytosol in breast cancer tissues and cell lines. KIAA1429/VIRMA depletion reduced breast cancer cell proliferation and migration. Mechanism studies showed that cytosolic expressed KIAA1429/VIRMA interacted with m6A reader protein IGF2BP3 and stabilized expression of m6A-modified HAS2 expression. HAS2 is downstream of KIAA1429/VIRMA to mediate breast cancer cell proliferation and migration and has positive correlation with KIAA1429/VIRMA expression in cancer patients.
2021-11-02 | GSE185494 | GEO
Project description:Background: N6-Methyladenosine (m6A) methylation, a common form of RNA modification, play an important role in the pathogenesis of various diseases and in the ontogeny of organisms. Nevertheless, the precise function of m6A methylation in photoaging remains unknown. Objectives: This study aims to investigate the biological role and underlying mechanism of m6A methylation in photoaging. Methods: m6A dot blot, Real-time quantitative PCR (RT-qPCR), western blot and immunohistochemical (IHC) assays were employed to detect the m6A level and specific m6A methylase in ultraviolet ray (UVR)-induced photoaging tissue. The profile of m6A-tagged mRNA was identified by methylated RNA immunoprecipitation sequencing (MeRIP-seq) and RNA-seq analysis. Finally, we investigated the regulatory mechanism of KIAA1429 by MeRIP-qPCR, RNA knockdown and immunofluorescence assay. Results: m6A levels were increased in photoaging and were closely associated with the upregulation of KIAA1429 expression. 1331 differentially m6A methylated genes were identified in the UVR group compared with the control group, of which 1192 (90%) were hypermethylated. Gene ontology analysis showed that genes with m6A hypermethylation and mRNA downregulation were mainly involved in extracellular matrix metabolism and collagen metabolism-related processes. Furthermore, KIAA1429 knockdown abolished the downregulation of TGF-R and upregulation of MMP1 in UVR-irradiated HDFs. Mechanically, we identified MFAP4 as a target of KIAA1429-mediated m6A modification and KIAA1429 might suppress collagen synthesis through an m6A-MFAP4-mediated process. Conclusions: The increased expression of KIAA1429 hinders collagen synthesis during UVR-induced photoaging, suggesting that KIAA1429 represents a potential candidate for targeted therapy to mitigate UVR-driven photoaging.
2024-07-16 | GSE268348 | GEO
Project description:Total RNA was extracted from HepG2 cells with sh-NC (n = 3) or sh-LINC01977 (n = 3). RNA samples were analyzed by RNA sequencing based on the manufacturer’s protocols. Briefly, Illumina HiSeq 4000 platform was used to sequence the RNA samples for the subsequent generation of raw data. R package was utilized to select genes with significantly differential expression based on fold change ≥2.0 and P≤0.05 between sh-NC and sh-LINC01977 cells. KEGG pathway and GSEA enrichment analysis were used for functional pathway analysis.
2023-05-24 | GSE227449 | GEO
Project description:Purpose: RNA-Seq was used to detect the dwonstream genes after CircRREB1 knockdow. Method: Three chondrocyte total RNA profiles of Si-NC samples and Si-CircRREB1 samples were analyzed.
2023-07-17 | GSE237298 | GEO
Project description:Purpose: RNA-Seq was used to detect the dwonstream genes after FASN knockdow. Method: Three chondrocyte total RNA profiles of Si-NC samples and Si-FASN samples were analyzed.
2023-07-14 | GSE237011 | GEO