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CD10/ALDH cells are the sole cisplatin-resistant component of a novel ovarian cancer stem cell hierarchy.

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CD10/ALDH cells are the sole cisplatin-resistant component of a novel ovarian cancer stem cell hierarchy. Ffrench, Brendan; Gasch, Claudia; Hokamp, Karsten; Spillane, Cathy; Blackshields, Gordon; Mahgoub, Thamir Mahmoud; Bates, Mark; Kehoe, Louise; Mooney, Aoibhinn; Doyle, Ronan; Doyle, Brendan; O'Donnell, Dearbhaile; Gleeson, Noreen; Hennessy, Bryan T; Stordal, Britta; O'Riain, Ciaran; Lambkin, Helen; O'Toole, Sharon; O'Leary, John J; Gallagher, Michael F It is long established that tumour-initiating cancer stem cells (CSCs) possess chemoresistant properties. However, little is known of the mechanisms involved, particularly with respect to the organisation of CSCs as stem-progenitor-differentiated cell hierarchies. Here we aimed to elucidate the relationship between CSC hierarchies and chemoresistance in an ovarian cancer model. Using a single cell-based approach to CSC discovery and validation, we report a novel, four-component CSC hierarchy based around the markers cluster of differentiation 10 (CD10) and aldehyde dehydrogenase (ALDH). In a change to our understanding of CSC biology, resistance to chemotherapy drug cisplatin was found to be the sole property of CD10

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