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Series GSE47546 Query DataSets for GSE47546
Status Public on Sep 11, 2014
Title Gene expression in whole lung and pulmonary macrophages reflects the dynamic pathology associated with airway surface dehydration [left lobe only]
Organism Mus musculus
Experiment type Expression profiling by array
Summary Scnn1b-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.
The data presented for the lung is part of a larger body of work evaluating gene expression in lung (left lobe only), trachea, and purified macrophages (from bronchoalveolar lavage fluid).
Overall design 24 Total lung (left lobe only) samples were analyzed; three from each timepoint for each genotype (wild type and Scnn1b-transgenic). In our manuscript, we were most interested in changes between WT and Scnn1b-Tg mice, however, the data can also be used to evaluate changes in gene expression across time (PND 0, 3, 10, and 42). We generated the following pairwise comparisons: Scnn1b-Tg vs WT mice for each PND time point; Intra-strain comparison between PND 3, or 10, or 42 vs PND 0.
Contributor(s) Saini Y, Dang H, Livraghi-Butrico A, O'Neal WK, Boucher RC
Citation(s) 25204199
Submission date May 31, 2013
Last update date Mar 04, 2019
Contact name Hong Dang
Organization name UNC Chapel Hill
Department CF Center
Street address 7027 Thurston-Bowles Bldg. CB#7248
City Chapel Hill
State/province NC
ZIP/Postal code 27599
Country USA
Platforms (1)
GPL6246 [MoGene-1_0-st] Affymetrix Mouse Gene 1.0 ST Array [transcript (gene) version]
Samples (24)
GSM1152160 Whole lung WT, PND 0, biological replicate 1
GSM1152161 Whole lung WT, PND 0, biological replicate 2
GSM1152162 Whole lung WT, PND 0, biological replicate 3
This SubSeries is part of SuperSeries:
GSE47551 mRNA expression data from either wild-type mice or Scnn1b-transgenic mice at post-natal days 0, 3, 10, and 42
BioProject PRJNA206056

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Supplementary file Size Download File type/resource
GSE47546_RAW.tar 92.5 Mb (http)(custom) TAR (of CEL)
Raw data provided as supplementary file
Processed data included within Sample table

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