Project description:RNA-seq was performed on A549 and H1299 cells that stably knocking down RBM4 or control, in order to profile the gene expression change that were regulated by RBM4
Project description:In order to profile the transcription events that were regulated by RBM4, mRNA-seq was performed on KYSE150_shRBM4 and KYSE150_ctl which based on KYSE150 cells
Project description:In order to profile the transcription events that were regulated by RBM4, mRNA-seq was performed on A549_shRBM4 and A549_ctl which based on A549 cells , H1299_shRBM4 and H1299_ctl which based on H1299 cells
Project description:To identify which mRNAs bind to RBM4/HIF-2a Two PAR-CLIPs were performed: One of an RBM4 immunoprecipitation, and the other of a HIF-2a immunoprecipitation and excising the associated RBM4 band.
Project description:RBM4 is a RNA-binding protein (RBP) able to modulate splicing by promoting exon inclusion and shares an import pathway with other splicing factors in the nucleus. In earlier studies we found that RBM4 interacts and colocalizes with WT1, which has been implicated in 10M-bM-^@M-^S15% of WilmsM-bM-^@M-^Y tumours and more recently in leukemya, is considered to be a tumour suppressor. RBM4, a RBP whose splicing effect is inhibited by the +KTS isoform of the tumour-suppressor/activator WT1, exhibits altered expression in different tumours, and may be essential for proliferation. Moreover, RBM4 binds to a number of RNAs of genes involved in acute myeloid leukaemia and cell cycle control. These results suggest that RBM4 may be involved in alternative splicing, tumorigenesis and particularly leukaemogenesis. To determine the endogenous transcripts that are targeted by RBM4 at the genome-wide level, we decided to perform exon microarray studies. RBM4-specific siRNA has been used for knockdown of RBM4 in HeLa cells. RNA was extracted using a Qiagen RNA extraction kit from untransfected, mock and siRNA-transfected HeLa cells and quality of RNA for microarray analysis was checked using a Bioanalyzer 2100 (Agilent Technologies). Experiments were run in triplicates.
Project description:RBM4 is a RNA-binding protein (RBP) able to modulate splicing by promoting exon inclusion and shares an import pathway with other splicing factors in the nucleus. In earlier studies we found that RBM4 interacts and colocalizes with WT1, which has been implicated in 10–15% of Wilms’ tumours and more recently in leukemya, is considered to be a tumour suppressor. RBM4, a RBP whose splicing effect is inhibited by the +KTS isoform of the tumour-suppressor/activator WT1, exhibits altered expression in different tumours, and may be essential for proliferation. Moreover, RBM4 binds to a number of RNAs of genes involved in acute myeloid leukaemia and cell cycle control. These results suggest that RBM4 may be involved in alternative splicing, tumorigenesis and particularly leukaemogenesis. To determine the endogenous transcripts that are targeted by RBM4 at the genome-wide level, we decided to perform exon microarray studies.
Project description:We hypothesized that RBM4 regulates HERVs by directly binding to their transcripts. To test this possibility, we performed photoactivatable ribonucleoside-enhanced crosslinking and immunoprecipitation (PAR-CLIP). We performed four independent PAR-CLIP replicates of our own using HAP1 cells stably expressing a FLAG-tagged RBM4 (FLAG-RBM4) transgene under control of a doxycycline-inducible promoter. Following metabolic labeling with 4-thiouridine (4SU) and crosslinking with ultraviolet light (UV) of 312 nm wavelength, we isolated RNA covalently linked to FLAG-RBM4. The RNA recovered from four biological replicates was converted into cDNA libraries and deep sequenced.