Advanced prostate cancer initially responds to hormonal treatment, but ultimately becomes resistant and requires more potent therapies. One mechanism of resistance observed in around 10-20% of these patients is lineage plasticity, which manifests in a partial or complete small cell or neuroendocrine prostate cancer (NEPC) phenotype. Here, we investigate the role of the mammalian SWI/SNF (mSWI/SNF) chromatin remodeling complex in NEPC. Using large patient datasets, patient-derived organoids and cancer cell lines, we identify mSWI/SNF subunits that are deregulated in NEPC and demonstrate that SMARCA4 (BRG1) overexpression is associated with aggressive disease. We also show that SWI/SNF complexes interact with different lineage-specific factors in NEPC compared to prostate adenocarcinoma. These data point to a role for mSWI/SNF complexes in therapy-related lineage plasticity, which may also be relevant for other solid tumors.
Role of specialized composition of SWI/SNF complexes in prostate cancer lineage plasticity / Cyrta J.; Augspach A.; De Filippo M.R.; Prandi D.; Thienger P.; Benelli M.; Cooley V.; Bareja R.; Wilkes D.; Chae S.-S.; Cavaliere P.; Dephoure N.; Uldry A.-C.; Lagache S.B.; Roma L.; Cohen S.; Jaquet M.; Brandt L.P.; Alshalalfa M.; Puca L.; Sboner A.; Feng F.; Wang S.; Beltran H.; Lotan T.; Spahn M.; Kruithof-de Julio M.; Chen Y.; Ballman K.V.; Demichelis F.; Piscuoglio S.; Rubin M.A.. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - ELETTRONICO. - 11:(2020), pp. 5549.0-5549.0. [10.1038/s41467-020-19328-1]
Role of specialized composition of SWI/SNF complexes in prostate cancer lineage plasticity
Benelli M.;Piscuoglio S.;
2020
Abstract
Advanced prostate cancer initially responds to hormonal treatment, but ultimately becomes resistant and requires more potent therapies. One mechanism of resistance observed in around 10-20% of these patients is lineage plasticity, which manifests in a partial or complete small cell or neuroendocrine prostate cancer (NEPC) phenotype. Here, we investigate the role of the mammalian SWI/SNF (mSWI/SNF) chromatin remodeling complex in NEPC. Using large patient datasets, patient-derived organoids and cancer cell lines, we identify mSWI/SNF subunits that are deregulated in NEPC and demonstrate that SMARCA4 (BRG1) overexpression is associated with aggressive disease. We also show that SWI/SNF complexes interact with different lineage-specific factors in NEPC compared to prostate adenocarcinoma. These data point to a role for mSWI/SNF complexes in therapy-related lineage plasticity, which may also be relevant for other solid tumors.File | Dimensione | Formato | |
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