RT Journal Article T1 A protocol to enrich in undifferentiated cells from neuroblastoma tumor tissue samples and cell lines. A1 Amador-Alvarez, Aida A1 Gomez-Muñoz, María A A1 Rodriguez-Prieto, Ismael A1 Pardal, Ricardo A1 Vega, Francisco M K1 Cancer K1 Cell Biology K1 Cell culture K1 Cell isolation K1 Flow Cytometry/Mass Cytometry K1 Single Cell K1 Stem Cells AB The existence of a subpopulation of undifferentiated cells with stem-like properties has been suggested in neuroblastoma tumors, but a definitive biomarker for their successful isolation is missing. Here we describe an in vitro culture system for the enrichment in undifferentiated stem-like tumor cells for subsequent functional assays. We make use of clonal non-adherent cell culture conditions together with cell sorting with specific expression markers. This protocol allows for the differential study of heterogeneous cell population in neuroblastoma tumors. For complete details on the use and execution of this protocol, please refer to Vega et al. (2019). PB Cell Press YR 2022 FD 2022-03-23 LK http://hdl.handle.net/10668/22542 UL http://hdl.handle.net/10668/22542 LA en NO Amador-Álvarez A, Gómez-Muñoz MA, Rodríguez-Prieto I, Pardal R, Vega FM. A protocol to enrich in undifferentiated cells from neuroblastoma tumor tissue samples and cell lines. STAR Protoc. 2022 Mar 23;3(2):101260. NO This research is supported by grants PID2019-110817RB-I00 funded by MCIN/AEI/ 10.13039/501100011033, grants P18-RT-3151 and US-1262985 funded by Junta de Andalucía-Universidad de Sevilla, and by “ERDF A way of making Europe”. M.A.G. was partially supported by a fellowship from the “Asociación Niños Enfermos de Neuroblastoma (NEN)”. A.A.A. is supported by a FPU grant from the Ministry of Universities. DS RISalud RD Apr 12, 2025