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| Status |
Public on Dec 14, 2014 |
| Title |
A negative feedback loop of transcription factors specifies alternative dendritic cell chromatin states (RNA-Seq) |
| Organism |
Mus musculus |
| Experiment type |
Expression profiling by high throughput sequencing
|
| Summary |
During hematopoiesis, cells originating from the same stem cell reservoir differentiate into distinct cell types. The mechanisms enabling common progenitors to differentiate into distinct cell fates are not fully understood. Here, we identify chromatin-regulating and cell-fate-determining transcription factors (TF) governing dendritic cell (DC) development by annotating the enhancer and promoter landscapes of the DC lineage. Combining these analyses with detailed over-expression, knockdown and ChIP-Seq studies, we show that Irf8 functions as a plasmacytoid DC epigenetic and fate-determining TF, regulating massive, cell-specific chromatin changes in thousands of pDC enhancers. Importantly, Irf8 forms a negative feedback loop with Cebpb, a monocyte-derived DC epigenetic fate-determining TF. We show that using this circuit logic, differential activity of TF can stably define epigenetic and transcriptional states, regardless of the microenvironment. More broadly, our study proposes a general paradigm that allows closely related cells with a similar set of signal-dependent factors to generate differential and persistent enhancer landscapes.
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| Overall design |
Here analyzed 2 experiments, each one contains samples of moDC and pDC ex vivo cultured cells. The first experiment contains 32 samples of moDC and pDC following stimulation with various TLR stimulators. The second experiment contains 8 samples of moDC and pDC following perturbations; Cebpb and Irf8 knock down or over expression.
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| Citation(s) |
25453760 |
| Submission date |
Oct 24, 2014 |
| Last update date |
May 15, 2019 |
| Contact name |
Ido Amit |
| E-mail(s) |
ido.amit@weizmann.ac.il
|
| Phone |
972-8-9343338
|
| Organization name |
Weizmann Institute of Science
|
| Department |
Immunology
|
| Street address |
234 Herzl st.
|
| City |
Rehovot |
| ZIP/Postal code |
760001 |
| Country |
Israel |
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| Platforms (1) |
| GPL18480 |
Illumina HiSeq 1500 (Mus musculus) |
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| Samples (48)
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| Relations |
| BioProject |
PRJNA264837 |
| SRA |
SRP049257 |
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