Leslie Duplaquet, Kevin So, Alexander W Ying, Xinyue Li, Yixiang Li, Xintao Qiu, Rong Li, Shilpa Singh, Xiaoli S Wu, Qi Liu, Jun Qi, Tim D D Somerville, Hillary Heiling, Emanuele Mazzola, Yenarae Lee, Thomas Zoller, Christopher R Vakoc, John G Doench, William C Forrester, Tinya Abrams, Henry W Long, Matthew J Niederst, Cigall Kadoch, Matthew G Oser
Small cell lung cancers (SCLC) are comprised of heterogeneous subtypes marked by lineage-specific transcription factors, including ASCL1, NEUROD1, and POU2F3. POU2F3-positive SCLC, ∼12% of all cases, are uniquely dependent on POU2F3 itself; as such, approaches to attenuate POU2F3 expression may represent new therapeutic opportunities. Here using genome-scale screens for regulators of POU2F3 expression and SCLC proliferation, we define mSWI/SNF complexes, including non-canonical BAF (ncBAF) complexes, as top dependencies specific to POU2F3-positive SCLC...
January 24, 2024: bioRxiv