RNA-BisSeq for YBX1 RIP in normal T24 cell
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA552057 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR9623673_1.fastq.gz | Fastqsanger.gz | |||
| SRR9623673_2.fastq.gz | Fastqsanger.gz | |||
| SRR9623674_1.fastq.gz | Fastqsanger.gz | |||
| SRR9623674_2.fastq.gz | Fastqsanger.gz | |||
| SRR9623675_1.fastq.gz | Fastqsanger.gz |
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Project description:Flag-YBX1 overexpressed T24 cells pellets were resuspended with 2 volume of lysis buffer (150 mM KCl, 10 mM HEPES pH 7.6, 2 mM EDTA, 0.5% NP-40, 0.5 mM DTT, 1:100 protease inhibitor cocktail, 400 U/ml RNase inhibitor), and incubated at 4 °C for 30 min with rotation. Then the lysate was centrifuged at 15 000 g for 20 min. Before incubating the lysate with Flag beads, 100ul were taken as input. The anti-Flag M2 magnetic beads (Sigma, 10 μl per mg lysate) were washed with NT2 buffer (200 mM NaCl, 50 mM HEPES pH 7.6, 2 mM EDTA, 0.05% NP-40, 0.5 mM DTT, 200 U/ml RNase inhibitor) four times. Cell lysate was mixed with M2 beads and incubated at 4 °C for 4 h with rotation. The beads were washed two times with 1 ml ice-cold NT2 buffer. Then the beads were subject to Micrococal nuclease (NEB) digestion (1:1 000 000 dilution) for 8 min at 37 °C. The beads were cooled on ice immediately for 5 min and washed two times with 1 ml ice-cold 1× PNK+EGTA buffer (50 mM Tris-HCl pH 7.5, 20 mM EDTA, 0.05% NP-40, 200 U/ml RNase inhibitor) and two times with 1 ml ice-cold 1× PK buffer (50 mM NaCl, 100 mM Tris-HCl pH 7.5, 10 mM EDTA, 0.2% SDS, 200 U/ml RNase inhibitor). Then the beads were digested with 200 μl pre-heated (20 min at 50 °C) Proteinase K and RNAs were extracted with an equal volume of Acid-Phenol: Chloroform, pH 4.5 (Ambion). The RNAs were subjected to rRNA removal and Bisseq. The libraries were sequenced on the Illumina HiSeq X-Ten platform at Novogene (Tianjin, CA) with paired-end 150 bp read length.The m5C sites were called using meRanCall from meRanTK (FDR < 0.01).
2019-07-02 | GSE133625 | GEO
Project description:In order to identify the target mRNAs of the m5C reader protein Ybx1, we carried out anti-Ybx1 RNA Immunoprecipitation(RIP) followed by RNA-sequencing to find out mRNAs that can directly bind by Ybx1. Using EZ-Magna RIPTM RNA-Binding Protein Immunoprecipitation Kit (Millipore), RNA from E13.5 wildtype mouse DRGs was pulled down by rabbit monoclonal anti-Ybx1 (abcam) and sequenced on IIIumina HiSeq3000 platform. The filtered reads were mapped to the mouse reference genome (GRCm39) using BWA mem (v 0.7.12). After peak calling using MACS2 (version 2.1.0) software, the distribution of chromosome distribution, peak width, fold enrichment, significant level and peak summit number per peak were all displayed. Fold enrichment greater than 2 was considered to be enriched. Finally, 2 biological repilicates of anti-Ybx1 RIP-seq identified 2487 transcripts. This study provides a gene list which shows mRNA binding with Ybx1 in mouse DRGs.
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Project description:Anti-Ybx1 RIP-seq to identify target mRNAs of Ybx1 in E13.5 DRG [RIP-seq]
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Project description:In order to identify YBX1 binding sites on tRNA fragments, we performed small-RNA HITS-CLIP on endogenous YBX1 We used a previously published method to perform HITS-CLIP on endogenous YBX1 (Chi SW, et al. 2009, Nature 460:479)
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Project description:we show that YBX1 is specifically required for maintaining myeloid leukemia cell survival but is dispensable for normal hematopoiesis. We found that expression of YBX1 is significantly upregulated in myeloid leukemia cells, and deletion of YBX1 significantly induces apoptosis, coupled with reduced proliferation and impaired leukemic capacity of primary human and mouse acute myeloid leukemia (AML) cells in vitro and in vivo. Loss of YBX1 does not obviously affect normal hematopoiesis. Mechanistically, YBX1 interacts with IGF2BPs and stabilizes m6A-tagged RNA. Moreover, YBX1 deficiency promotes mRNA decay in an m6A-dependent manner, which contributes to the defective survival due to YBX1 deletion. Thus, our findings uncover a selective and critical role of YBX1 in maintaining myeloid leukemia survival that might provide a rationale for the therapeutic targeting of YBX1 in myeloid leukemia.
2021-04-01 | GSE159153 | GEO
Project description:In order to identify YBX1 binding sites on endogenous RNA, we performed HITS-CLIP on endogenous YBX1 We used a previously published method to perform HITS-CLIP on endogenous YBX1 (Licatalosi D, et al. 2008, Nature 456:464-U22)
2015-05-08 | E-GEOD-63604 | biostudies-arrayexpress
Project description:The modification and recognition of 5-methylcytosine (m5C) are involved in the initiation and progression of various tumor types. However, the precise role and potential mechanism of Y-box-binding protein 1 (YBX1) in esophageal squamous cell carcinoma (ESCC) remains unclear. Here, we found that YBX1 was frequently upregulated in ESCC compared with matched nontumor tissues. Gain- and loss-of-function assays showed that YBX1 promoted the proliferation and metastasis of ESCC cells both in vitro and in vivo. Functional studies revealed that NOP2/Sun RNA methyltransferase family member 2 (NSUN2) is a critical RNA methyltransferase that facilitates YBX1-mediated ESCC progression. Mechanistically, integrated analysis based on RNA immunoprecipitation sequencing (RIP-seq) and m5C methylated RNA immunoprecipitation and sequencing (MeRIP-seq) assays identified spermine oxidase (SMOX) as a target gene containing an m5C site in its coding sequence (CDS) region, which coincided well with the binding site of YBX1. Overexpression of SMOX-WT but not SMOX-Mut partially restored the proliferation and invasion ability of ESCC cells curbed by YBX1 knockdown. Moreover, YBX1 activated the mTORC1 signaling pathway by stabilizing SMOX mRNA. Our study revealed that YBX1 promotes ESCC development by stabilizing SMOX mRNA in an m5C-dependent manner, thus providing a valuable therapeutic target for ESCC.
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Project description:Difference of DNA methylation and Chromatin accessibility of T24 SP cell and T24 NSP cell
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Project description:Perineural invasion (PNI) is a unique biological feature of pancreatic cancer and is a key cause of pancreatic cancer metastasis, recurrence and poor postoperative survival, but its mechanism is largely unclarified. Clinical sample analysis and endoscopic ultrasonographic elasticity scoring indicated that cancer-associated fibroblasts (CAFs) are closely related to the occurrence of PNI. Furthermore, CAF-derived extracellular vesicles played an extremely important role in PNI in a dorsal root ganglion (DRG) coculture model and sciatic nerve model. Next, we demonstrated that CAFs promoted PNI via extracellular vesicle transmission of PNI-associated transcript (PIAT). To explored the potential mRNA interacted with YBX1, we we performed YBX1 RNA immunoprecipitation–sequencing (RIP-seq).
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Project description:Breast cancer is the second leading cause of death in women worldwide, with triple-negative breast cancer (TNBC) having the worst prognosis. Although there are numerous studies on TNBC, there is no effective treatment for it, and it is still a major problem today. Studies on PIWI-interacting RNAs (piRNAs) are increasing and investigating the mechanism of piRNAs in the proliferation and metastasis of TNBC may lead to new potential treatment targets. Here, we identified a novel piRNA, piR-YBX1, which was downregulated in TNBC compared to matched normal breast tissue. Overexpression of piR-YBX1 significantly inhibited the proliferation, migration, invasion ability of TNBC cells both in vivo and in vitro. Mechanistically, piR-YBX1 could bind directly to mRNA of YBX1 and overexpression of piR-YBX1 downregulated YBX1 in both mRNA and protein levels, while the function of piR-YBX1 could be partly rescued by overexpression of YBX1. In addition, YBX1 could bind to RAF1 which is the key molecule in the MAPK signaling pathway, and overexpression of piR-YBX1 inhibited the p-MEK and p-ERK1/2 which can be reverted by YBX1. In conclusion, our findings discovered that the piR-YBX1/YBX1/MAPK axis suppresses the proliferation and metastasis of TNBC and therefore piR-YBX1 has the potential to be an effective therapeutic agent for breast cancer.
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