Project description:We aimed to elucidate the mechanistic involvement of STN1 in facilitating the metastatic processes of PDAC. Utilizing RNA-seq profiling, we observed a substantial downregulation of the EMT pathway in PANC-1 cells with stable STN1 knockdown
Project description:A microarray was performed in order to screen the changes in gene expression following Lynx1 knockdown in 2 human PDAC cell lines Miapaca and BXPC3 and using two specific siRNA to Lynx1
Project description:In our experiments, we showed that FAK regulates PDAC clonogenicity and selfrenewal. In order to evaluate the impact of FAK knockdown on the transcriptomes of PDAC , we knocked down FAK in two PDAC cell lines and compared the gene expression signatures with the cancer stem cell (CSC)associated gene signatures by GSEA analysis. CCS related gene profile was inversely related with FAK-knockdown gene signature.
Project description:To investigate the effect of existence or depletion of LIN28B in PDAC growth , we established cell lines with or without LIN28B expression. We then performed gene expression profiling analysis using data obtained from RNA-seq of 3 different cells.Additionally, we performed the whole exome sequencing of 14837T and 15376T to compare their differences
Project description:The canonical NF-κB transcription factor RELA is a master regulator of immune and stress responses and is upregulated in PDAC tumours. Here, we characterised previously unknown endogenous RELA-GFP dynamics in PDAC cell lines by live single cell imaging, which revealed rapid, sustained and non-oscillatory nuclear RELA following TNFα stimulation. Using Bayesian analysis of single cell datasets with variation in nuclear RELA, we predicted that RELA heterogeneity in PDAC cell lines is dependent on F-actin dynamics. Using RNA-seq, we identified the actin regulators NUAK2 and ARHGAP31 as transcriptionally regulated by RELA. In turn, NUAK2 or ARHGAP31 siRNA depletion downregulates TNFα-stimulated RELA nuclear localisation in PDAC cells, establishing a novel negative feedback loop regulating RELA activation by TNFα. We identify an additional actin-independent feedback loop involving RELB, which suppresses TNFα-mediated RELA nuclear localisation following RELA mediated upregulation of RELB. Taken together, we provide computational and experimental support for interdependence between the F-actin network and RELA translocation dynamics in PDAC.