5 research outputs found

    Measurement of the F2F_2 structure function in deep inelastic e+pe^+ p scattering using 1994 data from the ZEUS detector at HERA

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    Our previous studies have shown that IWS1 (Interacts with Spt6) is a phosphorylation target of Akt and regulates the alternative RNA splicing of FGFR2, linking IWS1 with lung cancer tumorigenesis. To further address the role of IWS1 in alternative RNA splicing and lung cancer, we performed an RNA-seq study using lung adenocarcinoma cells in which IWS1 was knocked down or replaced by its phosphorylation site mutant. This identified the splicing factor U2 Associated-Factor 2 (U2AF2) as a target of IWS1 phosphorylation, by showing that the loss of phosphorylated IWS1 results in U2AF2 transcripts lacking exon 2. Exon 2 encodes part of the U2AF65 Serine-Rich (SR) Domain, which is required for its binding with pre-mRNA Processing factor 19 (Prp19). Here, we show that the loss of phosphorylated IWS1 interferes with histone H3K36 trimethylation and the assembly of LEDGF/SRSF1 splicing complexes on the U2AF2 gene in a cell-cycle specific manner. The latter results in the downregulation of cell cycle division associated 5 (CDCA5), a phosphorylation target of ERK, leading to impaired cell proliferation, G2/M phase arrest and impaired tumor growth in mouse xenografts models, an effect more pronounced in cells harboring EGFR mutations. Analysis of human lung adenocarcinoma samples reveals robust correlations between IWS1 phosphorylation, U2AF2 splicing pattern, and CDCA5/p-ERK levels, especially in EGFR mutated patients. More importantly, IWS1 phosphorylation is positively correlated with tumor stage and grade and defines poor prognosis in lung adenocarcinoma patients, harboring EGFR, and not KRAS, mutations. This work highlights the instrumental role of the AKT/p-IWS1 axis to alternative RNA splicing in governing cell cycle progression and tumorigenesis, and proposes this axis as a novel drug target and prognosis factor in lung adenocarcinoma, by concomitantly affecting the epigenetic regulation of RNA processing and oncogenic signals. The purpose of this database is to provide all the raw data materials that have led to the conclusions shown in this report. These materials include Western blotting images, PCR images, qPCR raw data and any other raw data material from resources such as plate readers. The cell imaging from IHC and cell cultures will be included in a separate dataset due to size. Along with that, the complete lab book from the whole process will be provided, showing all the procedures followed during the analysis

    Study of charged-current ep interactions at Q(2)>200 GeV2 with the ZEUS detector at HERA

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    Deep inelastic charged-current reactions have been studied in e(+)p and e(-)p collisions at a center of mass energy of about 300 GeV in the kinematic region Q(2)>200 GeV2 and x>0.006 using the ZEUS detector at HERA, The integrated cross sections for Q(2)>200 GeV2 are found to be sigma(e+p-->)=30.3(-4.2 -2.6)(+5.5 +1.6) pb and sigma(e-p-->upsilon X)=54.7(-9.8 -3.4)(+15.9 +2.8) pb. Differential cross sections have been measures as functions of the variables x, y and Q(2). From the measured differential cross sections d sigma/dQ(2), the W boson mass is determined to be M(W)=79(-7 -4)(+8 +4) GeV. Measured jet rates and transverse energy profiles agree with model predictions, A search for charged-current interactions with a large rapidity gap yielded one candidate event, corresponding to a cross section of sigma(e+p-->)(Q(2)>200 GeV2; eta(max)<2.5)=0.8(-0.7)(+1.8)+/-0.1 pb

    Exercise as a Positive Modulator of Brain Function

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