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Single-Cell multi-omics reveals disrupted gene regulatory landscape and cell differentiation by Wilms tumor-associated ENL mutation in the developing kidney (ChIP-Seq)

ABSTRACT: ENL is an epigenetic acetylation reader and represents the most frequently mutated epigenetic regulator in Wilms tumor. In this study, we established an in vivo mouse model with the ENL hotspot mutation Enl-T1. Here we performed ChIP sequencing (ChIP-seq) analysis for human embryonuc kidney cell line HEK293 with ENL-WT or T1 to study the genomic binding site alterations induced by ENL mutation and whether those alterations can be rescued by treating the cells with the specific ENL inhibitor TDI-11055.

ORGANISM(S): Homo sapiens

PROVIDER: GSE243866 | GEO | 2024/05/27

REPOSITORIES: GEO

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Single-Cell multi-omics reveals disrupted gene regulatory landscape and cell differentiation by Wilms tumor-associated ENL mutation in the developing kidney (RNA-Seq)

Project description:ENL is an epigenetic acetylation reader and represents the most frequently mutated epigenetic regulator in Wilms tumor. In this study, we established an in vivo mouse model with the ENL hotspot mutation Enl-T1. Here we performed RNA sequencing (RNA-seq) analysis for human embryonuc kidney cell line HEK293 with ENL-WT, T1 or T2 to study the transcriptional changes induced by ENL mutations and whether those alterations can be rescued by treating the cells with the specific ENL inhibitor TDI-11055.

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Project description:ENL is an epigenetic acetylation reader and represents the most frequently mutated epigenetic regulator in Wilms tumor. In this study, we established an in vivo mouse model with the ENL hotspot mutation Enl-T1. We performed single-cell RNA sequencing (scRNA-seq) analysis for the Enl-WT and T1 embryonic kidney to study the transcriptional mechanism underlying the kidney developing defeat induced by the Enl mutation.

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Single-Cell multi-omics reveals disrupted gene regulatory landscape and cell differentiation by Wilms tumor-associated ENL mutation in the developing kidney (snATAC-Seq)

Project description:ENL is an epigenetic acetylation reader and represents the most frequently mutated epigenetic regulator in Wilms tumor. In this study, we established an in vivo mouse model with the ENL hotspot mutation Enl-T1. We performed single-nuclei ATAC sequencing (snATAC-seq) analysis for the Enl-WT and T1 embryonic kidney to study the open chromatin dynamics and gene regulatory mechanism underlying the kidney developing defeat induced by the Enl mutation.

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Project description:Acute myeloid leukemia (AML) is characterized by dysregulated transcriptional programs and these programs require support from chromatin regulators to maintain their hyperactive state. Recent studies have identified the histone acylation ‘reader’ ENL as being a critical dependency in AML, but the potential of therapeutic applications targeting this chromatin reader remains poorly understood. Here, we present a potent and orally bioavailable small-molecule inhibitor of ENL, TDI-055, which displaces ENL from chromatin by competitively blocking the interaction of its YEATS domain with acylated histones. We show that TDI-055 treatment preferentially inhibited the proliferation of human leukemia cells harboring MLL translocations or NPM1 mutations. Through a CRISPR/Cas9 saturated mutagenesis screen, we uncovered an ENL mutant that could confer cells resistance to TDI-055, thus providing compelling proof for the on-target activity of the compound. Rapid displacement of ENL from chromatin resulted in decreased recruitment of select ENL-associated complexes and impaired RNA polymerase II elongation which, in turn, led to the suppression of critical leukemogenic gene expression programs. Finally, pharmacological inhibition of ENL in vivo led to reduced AML growth and prolonged survival in cell line and patient-derived xenograft (PDX) models. Collectively, these results provide critical evidence and mechanistic insights to establish inhibition of ENL as a potential therapeutic strategy against molecularly defined AML, laying the foundation for rapid clinical translation of this approach.

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Single-Cell multi-omics reveals disrupted gene regulatory landscape and cell differentiation by Wilms tumor-associated ENL mutation in the developing kidney (ChIP-Seq)

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