Two colon cancer cell lines are under study. SW480 and SW620. The first one is derived from primary cancer, SW620 are from lymphnode metastatic sites. they both comes from the sampe patient. Polisomal RNA fractions from the two isogenic colon cancer cells lines was purified by sucrose gradient and hybridized on affymetrix hgu133a chips. this study is complementary to the series GSE1323 were total RNA was used instead. Comparison between the polysomal fraction chips and the total RNA chips is performed and the analysis proposed in a paper from the authors (at the moment in preparation).
Global alterations in mRNA polysomal recruitment in a cell model of colorectal cancer progression to metastasis.
No sample metadata fields
View SamplesSW480 and SW620 are colon cancer cells lines derived from a primary tumor and a corresponding metastasis from the same individual. The numbers indicate the three indipendent replicate RNA samples processed. Three different software packages were used in parallel for signal calculation: Affymetrix microarray suite 5.0, DNA-Chip analyzer, and Robust multi-array analyses.
Global alterations in mRNA polysomal recruitment in a cell model of colorectal cancer progression to metastasis.
No sample metadata fields
View SamplesWhite adipose tissue is primary involved in the response to insulin after feeding, while brain is not directly sensitive to insulin levels.
eIF6 coordinates insulin sensitivity and lipid metabolism by coupling translation to transcription.
Specimen part
View SamplesLiver is primary involved in the response to insulin after feeding. Hepatocytes activates a tightly controlled genetic programme where specific sets of genes are modulates in response to insulin, for activation of the anabolic pathways.
eIF6 coordinates insulin sensitivity and lipid metabolism by coupling translation to transcription.
Specimen part
View SamplesCortical interneurons display a remarkable diversity in their morphology, physiological properties and connectivity. Elucidating the molecular determinants underlying this heterogeneity is essential for understanding interneuron development and function. We discovered that alternative splicing differentially regulates the integration of somatostatin- and parvalbumin-expressing interneurons into nascent cortical circuits through the cell-type specific tailoring of mRNAs. Specifically, we identified a role for the activity-dependent splicing regulator Rbfox1 in the development of cortical interneuron subtype specific efferent connectivity. Our work demonstrates that Rbfox1 mediates largely non-overlapping alternative splicing programs within two distinct but related classes of interneurons. Overall design: RNA-seq of FACS sorted PV+ and SST+ cortical interneuronals at P8 of wt and conditional Rbfox1 Kos
Rbfox1 Mediates Cell-type-Specific Splicing in Cortical Interneurons.
Specimen part, Subject
View SamplesActivation of the canonical Wnt signaling pathway is commonly observed in pancreatic cancer. We therefore sought to identify a gene expression profile associated with the activation of this pathway in pancreatic cancer cells.
Activation of WNT/β-Catenin Signaling Enhances Pancreatic Cancer Development and the Malignant Potential Via Up-regulation of Cyr61.
Specimen part, Cell line
View SamplesPurpose: Controlling the balance between immunity and immunopathology is crucial for host resistance to pathogens. Upon infection, activation of the hypothalamic-pituitary-adrenal (HPA) axis leads to the production of glucocorticoids (GCs). However, the pleiotropic effects of these steroid hormones make it difficult to decipher their precise role in vivo. Our purpose was to study how GCs regulate the function of group 1 ILCs in spleen and liver upon Murine Cytomegalovirus (MCMV) infection. Methods: We studied the in vivo effect of endogenous GCs released upon MCMV infection on NK cells in spleen and liver and ILC1s in the liver. We compared WT mice with GRNcr1-iCre mice, in which the gene encoding for GC receptor (GR) is selectively deleted in Ncr1+ cells. Results: We found that the regulation of NK function by the GR is required for host protection against MCMV. Mechanistically, endogenous GCs produced shortly after infection induce the selective and tissue-specific expression of the immune checkpoint PD1 on NK cells. This GC-PD1 pathway mediates its immunoregulatory functions by limiting interferon (IFN)-g production by splenic NK cells, preventing lethal immunopathology. Importantly, this regulation does not compromise viral clearance. Conclusions:The fine-tuning of a selective subset of ILCs by the HPA axis preserves tissue integrity without impairing pathogen elimination, revealing a novel aspect of neuro-immune regulation. Overall design: Splenocytes (after NK cell enrichment with the mouse NK Cell Isolation Kit II, Miltenyi Biotec) and liver lymphocytes were pooled from three mice for each genotype. A FACS Aria III (BD Biosciences) was used to sort approximately 5 x 10^5 NK cells from the spleen and liver and 5 x 10^4 liver-resident ILC1s 44h post MCMV infection. We compared gene expression between glucocorticoid receptor (GR)-sufficient and deficient ILCs to identify the genes whose expression is regulated by GCs. Three biological replicates were generated for all samples except for the GRNcr1-iCre liver ILC1s sample (two biological replicates).
Endogenous glucocorticoids control host resistance to viral infection through the tissue-specific regulation of PD-1 expression on NK cells.
Sex, Specimen part, Subject
View SamplesThe pathology of chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis and the majority of lung cancers involve the small airway epithelium (SAE), the single continuous layer of cells lining the airways ?6th generations. The basal cells (BC) are the stem/progenitor cells of the SAE, responsible for the differentiation into intermediate cells and ciliated, club and mucous differentiated cells. To facilitate the study of the biology of the human SAE in health and disease, we immortalized and characterized a normal human SAE basal cell line.
Characterization of an immortalized human small airway basal stem/progenitor cell line with airway region-specific differentiation capacity.
Sex, Age, Specimen part, Race
View SamplesA major limitation in the cancer treatment is the ability of cancer cells to become resistant to chemotherapeutic drugs, by multidrug establishment. Here, we evaluate the possibility to utilize MC70, either as ABC transporters inhibitor or as anticancer agent, in monotherapy or in combination with doxorubicin for cancer treatment. The study was carried out in MCF7/ADR and Caco-2, breast and colon cancer cells, respectively. Cell growth and apoptosis were measured by MTT assay and DNA laddering Elisa kit, respectively. Cell cycle perturbation and cellular targets modulation were analyzed by flowcytometry and western blotting, respectively. MC70 was analyzed for its interaction with ABC transporters, MDR-1, BCRP and MRP-1, and for its anticancer activity. In MCF7/ADR, MC70 slight inhibited cell proliferation and strongly enhanced doxorubicin effectiveness; conversely in Caco-2, it inhibited cell growth without affecting doxorubicin efficacy. In addition, it induced apoptosis, canceled in favor of necrosis when it was given in combination with high doses of the anthracycline. Moreover, MC70 inhibited cell migration probably through its residual activity as sigma-1 ligand. Among the hypothesized molecular and cellular mechanisms responsible for all these effects, modulations of cell cycle, of pAkt and of the three MAPKs phosphorylation were evidenced while activity at transcription level was excluded. MC70 can be considered as a potential new anticancer agent with the capability to enhance doxorubicin effectiveness and an interesting role in the treatment of chemotherapy resistant tumors.
MC70 potentiates doxorubicin efficacy in colon and breast cancer in vitro treatment.
Cell line, Treatment
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Transcriptional signatures as a disease-specific and predictive inflammatory biomarker for type 1 diabetes.
No sample metadata fields
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