Gene expression profile of Baf3 cells overexpressing TPR-FGFR1 fusion gene
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PROVIDER: PRJNA1137402 | ENA |
REPOSITORIES: ENA
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Project description:Nowadays, fibroblast growth factor receptor 1 (FGFR1) inhibitors are considered as an effective kinase inhibitor for 8p11 myeloproliferative syndrome (EMS) treatment. However, targeting FGFR1 alone may not be sufficient in EMS patients with TPR-FGFR1 rearrangement. In this study, we established TPR FGFR1 expressing Baf3 cells and performed RNA-Seq analysis. RNA-Seq analysis revealed that genes associated with TPR-FGFR1 expression mainly participated in the epidermal growth factor receptor (EGFR) pathway (|FC| > 1.80, P < 0.05). Gene set enrichment analysis (GSEA) identified significant enrichment in the PI3K/AKT pathways. We found that EGFR is another activation pathway for AKT in TPR-FGFR1-expressing Baf3 cells. Moreover, we found that treatment with FGFR1 inhibitors alone could completely inhibit FGFR1 phosphorylation, but could not completely inhibit AKT, which is the downstream molecule of FGFR1. Compared to FGFR1 inhibitors alone, co-treatment with PD-166866 (FGFR1 inhibitor) and MK-2206 (AKT inhibitor) could simultaneously inhibit the phosphorylation of FGFR1 and AKT. In addition, FACS results indicated that the combination therapy of PD-168866 and MK-2206 significantly increased the rate of cells apoptosis than monotherapy of PD-166866 (P < 0.0001). Collectively, the data obtained in the present study provides strong evidence for dual targeting therapy of FGFR1 and AKT in EMS patients with TPR-FGFR1 rearrangement, offering a new direction for EMS treatment.
2024-07-21 | GSE272597 | GEO
Project description:To identify gene expression changes associated with receptor tyrosine kinase (RTK) activation, we performed RNA-Seq analysis of murine pro-B BAF3 cells over-expressing the oncogenic form of EGFR (EGFR-L858R-T790M), FGFR (TEL-FGFR1 fusion), MET (TPR-MET fusion) or RET (CCDC6-RET fusion) genes. We reported the RTK-driven transcriptional reprogramming of metabolic genes.
2020-04-10 | GSE111292 | GEO
Project description:The 8p11 myeloproliferative syndrome (EMS), also referred to as the stem cell leukemia/lymphoma syndrome, is a chronic myeloproliferative disorder that rapidly progresses into an acute leukemia. Molecularly, EMS is characterized by fusion of various partner genes to the FGFR1 gene, resulting in constitutive activation of the tyrosine kinase activity within FGFR1. The two most common fusion genes in human EMS are ZMYM2/FGFR1 (previously known as ZNF198/FGFR1) and BCR/FGFR1. To study the transcriptional programs becoming deregulated by the FGFR1 fusion genes, global gene expression analysis on human CD34+ cord blood cells expressing either of the fusion oncogenes ZMYM2/FGFR1 and BCR/FGFR1 was performed. As a reference gene we also included the more studied BCR/ABL1 fusion oncogene associated with chronic myeloid leukemia. We found that the 3 different fusion oncogenes had in common the upregulation of several genes involved in the JAK/STAT signalling pathway and also other sets of genes. However, the gene expression profiles were not identical, suggesting that both the tyrosine kinase containing gene and the partner gene would affect the transcription of downstream target genes. Bicistronic retroviral murine stem cell virus (MSCV) vectors expressing ZMYM2/FGFR1, BCR/FGFR1or P210 BCR/ABL1 and GFP were used. The MIG control vector expressed GFP only. Two days post transfection of human CD34+ umbilical cord blood cells, GFP-sorted cells were collected in three biological replicates and RNA was isolated immediately. In total, 12 samples were hybridized and scanned.
2010-05-27 | E-GEOD-15811 | biostudies-arrayexpress
Project description:The 8p11 myeloproliferative syndrome (EMS), also referred to as the stem cell leukemia/lymphoma syndrome, is a chronic myeloproliferative disorder that rapidly progresses into an acute leukemia. Molecularly, EMS is characterized by fusion of various partner genes to the FGFR1 gene, resulting in constitutive activation of the tyrosine kinase activity within FGFR1. The two most common fusion genes in human EMS are ZMYM2/FGFR1 (previously known as ZNF198/FGFR1) and BCR/FGFR1. To study the transcriptional programs becoming deregulated by the FGFR1 fusion genes, global gene expression analysis on human CD34+ cord blood cells expressing either of the fusion oncogenes ZMYM2/FGFR1 and BCR/FGFR1 was performed. As a reference gene we also included the more studied BCR/ABL1 fusion oncogene associated with chronic myeloid leukemia. We found that the 3 different fusion oncogenes had in common the upregulation of several genes involved in the JAK/STAT signalling pathway and also other sets of genes. However, the gene expression profiles were not identical, suggesting that both the tyrosine kinase containing gene and the partner gene would affect the transcription of downstream target genes.
2010-05-01 | GSE15811 | GEO
Project description:Purpose: Oncogenic transformation of hematopoietic stem cells by chimeric fusion kinases causing constitutive activation of FGFR1 leads to a stem cell leukemia/lymphoma (SCLL) syndrome, accompanied by widespread dysregulation of gene activity. The goals of this study are to use NGS-derived transcriptome profiling (RNA-seq) to identify genes regulated by FGFR1 fusion kinase in SCLL. Methods: Three different cell models for SCLL, respectively BBC2 (B cell lymphoblastic leukemia/lymphoma), ZNF112 (B cell lymphoblastic leukemia/lymphoma) and BCRF8C (myloid leukemia) were treated with selective FGFR1 kinase inhibitor,then the total RNA from treatment and viechel control were isolated for RNA-Seq analysis. Results: A global gene experssion change is generated, and provides fundamental information for demostration of molecular mechanisms in FGFR1 driven leukemogenesis.
2019-02-12 | GSE110457 | GEO
Project description:We used SLAM-seq approach to define a contribution of RNA synthesis into RNA abundance changes after Tpr loss. Basket nucleoporin Tpr was AID-tagged and depleted through Auxin Induced Degradation system. Loss of Tpr led to rapid changes in rates of RNA synthesis. The majority of transcripts were downregulated. Analysis of RNA-seq and SLAM-seq indicated that the changes in RNA abundance of most of Tpr-dependent up- and downregulated genes resulted from increased or decreased rates of RNA synthesis, respectively.
2020-06-15 | GSE149890 | GEO
Project description:How splicing regulates the nuclear export of mRNAs has been a source of much debate. While splicing has been shown to enhance nuclear export, it has remained unclear whether mRNAs generated from intronless genes use specific machinery to promote their export. Here we investigate the role of the major nuclear pore basket protein, TPR, in regulating mRNA and lncRNA nuclear export. We provide evidence that TPR is required for the nuclear export of mRNAs and lncRNAs that are generated from intronless or intron-poor genes. In contrast, TPR is not required for the nuclear retention of mRNAs that have retained introns, or unused 5’ splice site motifs. In summary, our study provides one of the first examples of a factor that is specifically required for the nuclear export of intronless mRNAs.
2020-10-02 | GSE135537 | GEO
Project description:The Baf3 are dependent on IL-3 for grwoth however transformation by BCR -ABL oncogene causes BAf3 cells independent of IL-3. The BAf3 cells expressing BCR-ABL are dependent on continuous expression of BCR_ABL for growth. Inhibitionof BCR-ABL by its inhibitor Imatinib cause these cells to undergo apoptosis. When these cells are grown with IL-3 these cells do not respond to Imatinib mediated grwoth arrest.
2017-03-20 | GSE75057 | GEO
Project description:To identify changes in splicing patterns following WTAP and TPR knockdown, RNA-sequencing was performed on breast cancer cells transfected with siRNAs targeting WTAP or TPR.
2019-12-26 | GSE130873 | GEO