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Updated: Jul 24, 2025

Nuclei Isolation from Fresh Frozen Brain Tumors for Single-Nucleus RNA-seq and ATAC-seq
Published on: August 25, 2020
Isolation and profiling of viable tumor cells from human ex vivo glioblastoma cultures through single-cell
Junyi Zhang1, Jakob Straehle2, Kevin Joseph3
13D-Brain Models for Neurodegenerative Diseases, Medical Center, University of Freiburg, Freiburg, Germany; Microenvironment and Immunology Research Laboratory, Medical Center, University of Freiburg, Freiburg, Germany; Department of Neurosurgery, Medical Center, University of Freiburg, Freiburg, Germany; Faculty of Medicine, University of Freiburg, Freiburg, Germany; Translational NeuroOncology Research Group, Medical Center - University of Freiburg, Freiburg, Germany.
Abstract:
Single-cell RNA-sequencing (scRNA-seq) is becoming a ubiquitous method in profiling the cellular transcriptomes of both malignant and non-malignant cells from the human brain. Here, we present a protocol to isolate viable tumor cells from human ex vivo glioblastoma cultures for single-cell transcriptomic analysis. We describe steps including surgical tissue collection, sectioning, culturing, primary tumor cells inoculation, growth tracking, fluorescence-based cell sorting, and population-enriched scRNA-seq. This comprehensive methodology empowers in-depth understanding of brain tumor biology at the single-cell level. For complete details on the use and execution of this protocol, please refer to Ravi et al.1.
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