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SRX24450572: GSM8248511: MC_PGE2_4; Mus musculus; RNA-Seq
1 ILLUMINA (Illumina NovaSeq 6000) run: 4.5M spots, 339.9M bases, 135.7Mb downloads

External Id: GSM8248511_r1
Submitted by: Brigham and Women's Hospital
Study: Mast Cells Control Lung Type 2 Inflammation via Prostaglandin E2-Driven Soluble ST2.
show Abstracthide Abstract
Severe asthma and sinus disease is a consequence of Type 2 inflammation (T2I), mediated by IL-33 signaling through its membrane-bound receptor, ST2. Soluble (s)ST2 reduces available IL-33 and limits T2I, but little is known about its regulation. We demonstrate that prostaglandin E2 (PGE2) drives production of sST2 to limit features of lung T2I. PGE2 deficient mice display diminished sST2. In humans with severe respiratory T2I, urinary PGE2 metabolites correlate with serum sST2. In mice, PGE2 enhanced sST2 secretion by mast cells (MCs). Mice lacking MCs, ST2 expression by MCs or EP2 receptors by MCs showed reduced sST2 lung concentrations and strong T2I. Recombinant sST2 reduced T2I in mice lacking PGE2 or ST2 expression by MCs back to control levels. PGE2 deficiency also reversed the hyperinflammatory phenotype in mice lacking ST2 expression by MCs. PGE2 thus suppresses T2I through MC-derived sST2, explaining the severe T2I observed in low PGE2 states. Overall design: RNA-seq analysis of Mouse Bone Marrow MCs were stimulated with 10 ng/mL of IL-33 and/or 1 µM of PGE2 for 24 hours
Sample: MC_PGE2_4
SAMN41200626 • SRS21204487 • All experiments • All runs
Organism: Mus musculus
Library:
Name: GSM8248511
Instrument: Illumina NovaSeq 6000
Strategy: RNA-Seq
Source: TRANSCRIPTOMIC
Selection: cDNA
Layout: PAIRED
Construction protocol: Cells were spun down and resuspended in TCL buffer (Qiagen) with 1% 2-mercaptoethanol. Lysate containing 1,000 cells was transferred into low-bind plates for sequencing through the Broad Institute Genomics Platform SmartSeq2 libraries were prepared according to the SmartSeq2 protocol (Picelli et al, 2013, 2014) with some modifications (Trombetta et al, 2014). Briefly, total RNA was purified using RNA-SPRI beads. Poly(A)+ mRNA was converted to cDNA which was then amplified. cDNA was subject to transposon-based fragmentation that used dual-indexing to barcode each fragment of each converted transcript with a combination of barcodes specific to each sample. Barcoded cDNA fragments were then pooled prior to sequencing. Sequencing was carried out using an Illumina NextSeq500 as paired- end 2x25bp with an additional 8 cycles for each index.
Runs: 1 run, 4.5M spots, 339.9M bases, 135.7Mb
Run# of Spots# of BasesSizePublished
SRR288921114,472,489339.9M135.7Mb2024-05-20

ID:
32766612

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