Lung alveolarization is a complex process that involves interactions between several cell types and leads to considerable increase in gas-exchange surface area. The step designated secondary septation includes elastogenesis from interstitial fibroblasts.
Gene expression profiling in lung fibroblasts reveals new players in alveolarization.
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View SamplesRNA sequencing analysis of gene expression in serrated colon polyps, uninvolved colon and control colon Overall design: 86 colon RNA sequencing datasets (21 sessile serrated adenomas/polyps, 10 hyperplastic polyps, 10 adenomatous polyps, 21 uninvolved colon, 20 control colon and 4 colon cancer)
Gene Signature in Sessile Serrated Polyps Identifies Colon Cancer Subtype.
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View SamplesThis SuperSeries is composed of the SubSeries listed below.
Gene expression in whole lung and pulmonary macrophages reflects the dynamic pathology associated with airway surface dehydration.
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View SamplesThis SuperSeries is composed of the SubSeries listed below.
Transcriptional signatures of Itk-deficient CD3+, CD4+ and CD8+ T-cells.
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View SamplesScnn1b-Tg mice overexpress the beta subunit of the epithelial sodium channel (Scnn1b) in airway Club cells. The general phenotype of these mice is described in three published manuscripts (Mall et al. 2004, Nature Medicine, 10(5):487-93; Mall et al. 2008, Am J Respir Crit Care Med. 177(7):730-42; and Livraghi-Butrico et al. 2012, Physiol. Genomics 44(8):470-84. Briefly, overexpression of the Scnn1b transgene in airway Club cells leads to hyperabsorption of sodium from the airway surface liquid, dehydrated airway surface liquid and mucus, and reduced mucus clearance associated with accumulation of mucus plugs/plaques. The data provided here represents mRNA expression data from disseccted whole trachea (distal and proximal ends cut 3-4 cartliage rings below the larynx and just above the bifurcation, respectively) from male WT and Scnn1b-Tg littermates (C57Bl/6NTac background) at 4 time points [postnatal days (PND) 0, 3, 10, and 42]. PND 0 trachea are histologically normal, a tracheal mucus plug/obstruction develops around PND 3, the plug is receding to more distal airways by PND 10, and the trachea is again histologically normal by PND 42. The data from the WT mice provides a global look at mRNA changes across time, while the data from the Scnn1b-Tg line provides mRNA data that allows differential gene expression due to mucus obstruction to be queried.
Gene expression in whole lung and pulmonary macrophages reflects the dynamic pathology associated with airway surface dehydration.
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View SamplesMicroarrays were used to evaluate the effects of azithromycin and an inflammatory stimulus (SMM) on human airway epithelium. Effects of azithromycin treatment were evaluated at 6, 24 and 48 hours. Effects of SMM were evaluated at 6 and 24 hours. In addition, pretreatment with azithromycin was used to evaluate the modulatory effects on SMM-induced inflammation. SMM=supernatant from microcorpulent material from human cystic fibrosis airways.
Azithromycin treatment alters gene expression in inflammatory, lipid metabolism, and cell cycle pathways in well-differentiated human airway epithelia.
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View SamplesScnn1b-Tg mice overexpress the beta subunit of the epithelial sodium channel (Scnn1b) in airway Club cells. The general phenotype of these mice is described in three published manuscripts (Mall et al. 2004, Nature Medicine, 10(5):487-93; Mall et al. 2008, Am J Respir Crit Care Med. 177(7):730-42; Livraghi-Butrico et al. 2012, Physiol. Genomics 44(8):470-84; and Livraghi-Butrico et al. 2012, Mucosal Immunology 5(4):397-408). Briefly, overexpression of the Scnn1b transgene in airway Club cells leads to hyperabsorption of sodium from the airway surface liquid, which causes airway surface liquid and mucus dehydration, resulting in reduced mucus clearance and airway mucus obstruction. The data provided here represents mRNA expression data from dissected whole trachea (distal and proximal ends were cut 3-4 cartilage rings below the larynx and just above the bifurcation, respectively) from male WT and Scnn1b-Tg littermates (C57Bl/6N Tac background) at 4 time points [postnatal days (PND) 0, 3, 10, and 42]. Histologically, PND 0 trachea are normal, a tracheal mucus plug/obstruction develops around PND 3 and typically recedes to the intrapulmonary airways after PND 10, and the trachea is again histologically normal by PND 42. The data from the WT mice provides a global look at mRNA post-natal developmental changes, while the data from the Scnn1b-Tg line provides mRNA data that allows differential gene expression due to airway mucus obstruction to be queried.
Gene expression in whole lung and pulmonary macrophages reflects the dynamic pathology associated with airway surface dehydration.
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View SamplesScnn1b-Tg mice overexpress the beta subunit of the epithelial sodium channel (Scnn1b) in airway Club cells. The general phenotype of these mice is described in three published manuscripts (Mall et al. 2004, Nature Medicine, 10(5):487-93; Mall et al. 2008, Am J Respir Crit Care Med. 177(7):730-42; Livraghi-Butrico et al. 2012, Physiol. Genomics 44(8):470-84; and Livraghi-Butrico et al. 2012, Mucosal Immunology 5(4):397-408). Briefly, overexpression of the Scnn1b transgene in airway Club cells leads to hyperabsorption of sodium from the airway surface liquid, which causes airway surface liquid and mucus dehydration, resulting in reduced mucus clearance and airway mucus obstruction. The data provided here represents mRNA expression data from disseccted whole lung from male WT and Scnn1b-transgenic littermates (C57Bl/6NTac background) at 4 time points [postnatal days (PND) 0, 3, 10, and 42]. Histologically, PND 0 lungs are normal, at PND 3 the intrapulmonary airways exhibit transient and spotty Club cell necrosis, and by PND 10 airway mucus obstruction is evident in the proximal portion of the intrapulmonary main stem bronchus. At PND 42, Scnn1b-Tg lungs are charactyerized by chronic low level inflammation, with activated macrophages, neutrophilia, eosinophilia and increased incidence of bronchus-associated lymphoid tissue. The data from the WT mice provides a global look at mRNA post-natal developmental changes, while the data from the Scnn1b-transgenic line allows differential gene expression due to airway surface liquid dehydration and mucus obstruction to be queried.
Gene expression in whole lung and pulmonary macrophages reflects the dynamic pathology associated with airway surface dehydration.
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View SamplesThe Tec-family kinase Itk plays an important role during T-cell activation and function, and controls also conventional versus innate-like T-cell development. We have characterized the transcriptome of Itk-deficient CD3+ T-cells, including CD4+ and CD8+ subsets, using Affymetrix microarrays. The largest difference between Itk-/- and Wt CD3+ T-cells was found in unstimulated cells, e.g. for killer cell lectin-like receptors. Compared to anti-CD3-stimulation, anti-CD3/CD28 significantly decreased the number of transcripts suggesting that the CD28 co-stimulatory pathway is mainly independent of Itk. The signatures of CD4+ and CD8+ T-cell subsets identified a greater differential expression than in total CD3+ cells. Cyclosporin (CsA)-treatment had a stronger effect on transcriptional regulation than Itk-deficiency, suggesting that only a fraction of TCR-mediated calcineurin/NFAT-activation is dependent on Itk. Bioinformatic analysis of NFAT-sites of the group of transcripts similarly regulated by Itk-deficiency and CsA-treatment, followed by chromatin-immunoprecipitation, revealed NFATc1-binding to the Bub1, IL7R, Ctla2a, Ctla2b, and Schlafen1 genes. Finally, to identify transcripts that are regulated by Tec-family kinases in general, we compared the expression profile of Itk-deficient T-cells with that of Btk-deficient B-cells and a common set of transcripts was found. Taken together, our study provides a general overview about the global transcriptional changes in the absence of Itk.
Transcriptional signatures of Itk-deficient CD3+, CD4+ and CD8+ T-cells.
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View SamplesThe Tec-family kinase Itk plays an important role during T-cell activation and function, and controls also conventional versus innate-like T-cell development. We have characterized the transcriptome of Itk-deficient CD3+ T-cells, including CD4+ and CD8+ subsets, using Affymetrix microarrays. The largest difference between Itk-/- and Wt CD3+ T-cells was found in unstimulated cells, e.g. for killer cell lectin-like receptors. Compared to anti-CD3-stimulation, anti-CD3/CD28 significantly decreased the number of transcripts suggesting that the CD28 co-stimulatory pathway is mainly independent of Itk. The signatures of CD4+ and CD8+ T-cell subsets identified a greater differential expression than in total CD3+ cells. Cyclosporin (CsA)-treatment had a stronger effect on transcriptional regulation than Itk-deficiency, suggesting that only a fraction of TCR-mediated calcineurin/NFAT-activation is dependent on Itk. Bioinformatic analysis of NFAT-sites of the group of transcripts similarly regulated by Itk-deficiency and CsA-treatment, followed by chromatin-immunoprecipitation, revealed NFATc1-binding to the Bub1, IL7R, Ctla2a, Ctla2b, and Schlafen1 genes. Finally, to identify transcripts that are regulated by Tec-family kinases in general, we compared the expression profile of Itk-deficient T-cells with that of Btk-deficient B-cells and a common set of transcripts was found. Taken together, our study provides a general overview about the global transcriptional changes in the absence of Itk.
Transcriptional signatures of Itk-deficient CD3+, CD4+ and CD8+ T-cells.
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