ZMYND8 is potential selective therapeutic target for modulating the IRF8/MYC transcriptional networks in AML
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ABSTRACT:
PROVIDER: PRJNA662299 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR12607100.fastq.gz | Fastqsanger.gz | |||
| SRR12607101.fastq.gz | Fastqsanger.gz | |||
| SRR12607102.fastq.gz | Fastqsanger.gz | |||
| SRR12607103_1.fastq.gz | Fastqsanger.gz | |||
| SRR12607103_2.fastq.gz | Fastqsanger.gz |
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Project description:Cancer cell type-selective addiction of transcription-chromatin regulatory program provides opportunities for therapeutic interventions. Here, we uncovered an IRF8-MEF2D transcription factor (TF) regulatory circuit as an acute myeloid leukemia (AML)-biased dependency. Combining CRISPR-based genetic screens, transcriptional analysis, and chromatin profiling, we demonstrated that a chromatin regulator, ZMYND8, directly regulates IRF8 and MYC expression through occupying AML-specific enhancer regions. ZMYND8 was essential for AML proliferation both in vitro and in vivo. The ZMYND8-occupied IRF8 enhancer was further characterized using Circular Chromosome Conformation Capture and CRISPRi-based perturbation assays and was observed in primary patient cells. Importantly, mutagenesis experiments revealed that the PHD/Bromodomain/PWWP reader module is required for ZMYND8 tethering to leukemia-essential co-activator BRD4 for enhancer-mediated gene regulation. Our results rationalize ZMYND8 as a potential selective therapeutic target for modulating the IRF8/MYC transcriptional networks in AML.
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Project description:Cancer cell type-selective addiction of transcription-chromatin regulatory program provides opportunities for therapeutic interventions. Here, we uncovered an IRF8-MEF2D transcription factor (TF) regulatory circuit as an acute myeloid leukemia (AML)-biased dependency. Combining CRISPR-based genetic screens, transcriptional analysis, and chromatin profiling, we demonstrated that a chromatin regulator, ZMYND8, directly regulates IRF8 and MYC expression through occupying AML-specific enhancer regions. ZMYND8 was essential for AML proliferation both in vitro and in vivo. The ZMYND8-occupied IRF8 enhancer was further characterized using Circular Chromosome Conformation Capture and CRISPRi-based perturbation assays and was observed in primary patient cells. Importantly, mutagenesis experiments revealed that the PHD/Bromodomain/PWWP reader module is required for ZMYND8 tethering to leukemia-essential co-activator BRD4 for enhancer-mediated gene regulation. Our results rationalize ZMYND8 as a potential selective therapeutic target for modulating the IRF8/MYC transcriptional networks in AML.
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