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Gene expression changes in THP1 cells at day 2 and 4 following shRNA knock-down of RUVBL2

ABSTRACT: We used an inducible shRNA system and RNA-Seq to examine gene expression changes in acute myeloid leukemia THP1 cells following silencing of RUVBL2. RUVBL2 is a AAA+ ATPase that functions in a number of cellular processes, including chromatin remodeling and transcriptional control, and is critical for survival of acute myeloid leukemia cells and in vivo disease progression.

ORGANISM(S): Homo sapiens

PROVIDER: GSE117106 | GEO | 2019/01/01

REPOSITORIES: GEO

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Expression analysis of THP1 cells following shRNA knock-down of RUVBL2

Project description:We used an inducible shRNA system and RNA-Seq to examine gene expression changes in acute myeloid leukemia THP1 cells following silencing of RUVBL2. RUVBL2 is a AAA+ ATPase that functions in a number of cellular processes, including chromatin remodeling and trnascriptional control, and is critical for survival of acute myeloid leukemia cells and in vivo disease progression.

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Project description:Transcription regulators and apparatuses compartmentalize into transcriptional condensates in part through molecular interactions among intrinsically disordered regions. To better understand how these fundamental condensates are regulated, we performed time-series analyses of transcriptome, genome and imaging to show that the previously characterized molecular chaperone RUVBL2 assembles Pol II condensates by its ATPase activity and prevalently interacting with diverse oncogenic transcription factors at promoters, thereby maintaining active transcription in mammalian cells. Besides, RUVBL2 is overexpressed in various cancers, has higher expression levels and preferential chromatin binding compared with RUVBL1. Remarkably, acute protein degradation and chemical perturbations of RUVBL2 with the nucleoside compound cordycepin result in the repression of oncogenes in embryonic stem cells and breast cancer cells, respectively. Our results suggest that molecular chaperone RUVBL2 safeguards the hemostasis of transcriptional condensates at promoters. Thus, pharmacological perturbations of RUVBL2 is a promising strategy to restore these condensates in breast cancers.

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