Next Generation Sequencing Facilitates Quantitative Analysis of IL4/IL13 treated wild-type BMDMs
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ABSTRACT:
PROVIDER: PRJNA716305 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR14035806.fastq.gz | Fastqsanger.gz | |||
| SRR14035806_1.fastq.gz | Fastqsanger.gz | |||
| SRR14035806_2.fastq.gz | Fastqsanger.gz | |||
| SRR14035807.fastq.gz | Fastqsanger.gz | |||
| SRR14035807_1.fastq.gz | Fastqsanger.gz |
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Project description:The type 2 cytokines, interleukin (IL)-4, IL-5 and IL-13 reside within a multi-gene cluster in mammals. These cytokines represent the hallmark of type 2 immune responses controlling parasites and promoting tissue repair, as well as causing allergic diseases. Both innate and adaptive lymphocytes secrete type 2 cytokines with discordant production spectra. We took a holistic structural and functional view of the type 2 cytokine locus before and after activation, comparing innate (ILC2) and adaptive (Th2) lymphocytes to understand mechanisms underlying their distinctive programs. Rapid induction of IL-5 dominates in ILC2, whereas IL-4 does so in Th2 cells. Using high-resolution chromatin conformation capture we found that global cellular chromatin architecture remained constant, whereas the type 2 cytokine locus rapidly remodeled. In ILC2, Il13 and Il5 loci were aligned in proximity whereas Il4 locus was insulated. In Th2 cells, Il4 and Il13 positioned in proximity while the Il5 locus remained distal. Select REs were individually deleted in mice to confirm cell-type specific and activation-dependent roles in type 2 responses in vivo. Thus, contrary to the premise that chromatin architecture plays a minimal role in steady-state gene induction, signal-dependent remodeling of 3D configuration underlies the discordant cytokine outputs in ILC2s versus Th2 cells.
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