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- W3192786952 abstract "<h2>Summary</h2> Lineage-defining transcription factors (LTFs) play key roles in small-cell lung cancer (SCLC) pathophysiology. Delineating the LTF-regulated genes operative in SCLC could provide a road map to identify SCLC dependencies. We integrated chromatin landscape and transcriptome analyses of patient-derived SCLC preclinical models to identify super-enhancers (SEs) and their associated genes in the ASCL1-, NEUROD1-, and POU2F3-high SCLC subtypes. We find SE signatures predict LTF-based classification of SCLC, and the SE-associated genes are enriched with those defined as common essential genes in DepMap. In addition, in ASCL1-high SCLC, we show ASCL1 complexes with NKX2-1 and PROX1 to co-regulate genes functioning in NOTCH signaling, catecholamine biosynthesis, and cell-cycle processes. Depletion of ASCL1 demonstrates it is a key dependency factor in preclinical SCLC models and directly regulates multiple DepMap-defined essential genes. We provide LTF/SE-based subtype-specific gene sets for SCLC for further therapeutic investigation." @default.
- W3192786952 created "2021-08-16" @default.
- W3192786952 creator A5003054607 @default.
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- W3192786952 creator A5074324053 @default.
- W3192786952 date "2021-09-01" @default.
- W3192786952 modified "2023-10-14" @default.
- W3192786952 title "ASCL1, NKX2-1, and PROX1 co-regulate subtype-specific genes in small-cell lung cancer" @default.
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