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Non-canonical activating roles of RCoR2 sustain transcription in adrenergic neuroblastoma [RNA-Seq]

GSE281092 Homo sapiens Expression profiling by high throughput sequencing 9 samples Submitted 2025/06/10 Platform GPL18573
Summary
CoREST complexes (LSD1, HDAC1/2 and RCoR1/2/3) are pivotal in neurodevelopment and have long been recognized as transcriptional repressors across various cancers. However, distinct roles of RCoR factors remain underexplored. Here, we unveil non-canonical functions of RCoR2 in MYCN-amplified neuroblastoma (NB), underscoring its unique significance compared to its paralogues. This insight shifts the paradigm, highlighting RCoR2 as a key determinant of the NB chromatin landscape. Our findings demonstrate that RCoR2 is a super-enhancer driven gene, which, unlike RCoR1, acts as a positive regulator of gene expression as a partner of the adrenergic NB core regulatory circuitry (CRC). We propose a model in which RCoR2 facilitates interactions between CRC-bound enhancers and their associated transcription start sites, thereby sustaining the expression of genes critical for neuroblastoma cell survival. Thus, we identify RCoR2 as a critical vulnerability in high-risk neuroblastoma and a promising target for cancer therapeutics.
Published in
Non-canonical activating roles of RCoR2 sustain transcription in adrenergic neuroblastoma
Aloisi S, Santulli M, Russo M et al. · Cell reports 2025 · PMID 40664206 · doi:10.1016/j.celrep.2025.115951
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Also filed as BioProject PRJNA1182268 and SRA study SRP543285. Searching any of these in the dataset finder brings you back here.

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