Project description:Microarray analysis of mouse colon organoids after the removal of inflammatory reagents following long-term treatment with inflammatory reagents.
Project description:Human colon organoids were maintained in culture medium alone or exposed to lipopolysaccharide with a combination of three pro-inflammatory cytokines (tumor necrosis factor-a, interleukin-1b and interferon-g [LPS-cytokines]) to mimic the environment in the inflamed colon. Untreated organoids and those exposed to LPS-cytokines were concomitantly treated with a multi-mineral product that has previously been shown to improve barrier structure/function. The organoids were subjected to proteomic analysis to obtain a broad view of the protein changes induced by these interventions. In parallel, confocal fluorescence microscopy and trans-epithelial electrical resistance measurements were used to assess barrier structure/function. The LPS-cytokines altered expression of multiple proteins that influence innate immunity and promote inflammation. Most of these were unaffected by the multi-mineral intervention, though a subset of inflammation-related proteins including fibrinogen-b and -g chains, phospholipase A2 and SPARC was down-regulated in the presence of the multi-mineral intervention; another subset of proteins with anti-inflammatory, antioxidant or anti-microbial activity was up-regulated by multi-mineral treatment. When used alone, the multi-mineral intervention strongly up-regulated proteins that contribute to barrier formation and tissue strength. Concomitant treatment with LPS-cytokines did not inhibit barrier formation in response to the multi-mineral intervention.
Project description:We aimed to investigate transcriptional changes in human colon cancer organoids with the BRAF-V600E mutation and in human colon cancer organoids in which the BRAF-V600E mutation was corrected by means of CRISPR genome editing. RNAseq was performed at USEQ at the UMC Utrecht (The Netherlands).
Project description:Experiment intended to obtain expression profiles of iPSC-derived human colon organoids compared to undifferentiated human iPSCs and a patient-derived colon organoid line
Project description:To profile transcriptomic alterations induced by catecholamine stimulation, we treated ApcΔ/Δ, KrasG12D/Δ, Trp53Δ/Δ mouse colon cancer organoids with norepinephrine or vehicle and then performed RNA sequencing.
