Human Cerebral Organoid Model of Meningioma: Multiplatform Genomic Profiling and 3D Coculture System
Source Magill et al., 2020 · University of California San Francisco · 10.1038/s41467-020-18582-7
Abstract
This protocol describes the development and culture of human cerebral organoids containing predifferentiated astrocytes cocultured with patient-derived meningioma cell lines to model meningioma formation in a physiologic microenvironment. The system enables investigation of meningioma cell interactions with astrocytes and identification of gene expression programs driving meningioma proliferation and invasion.
Protocol overview
22 steps across 4 phases
- 1 Tissue preparation and cell line establishment
- 2 Cell culture expansion to confluence
- 3 DNA methylation analysis and CNV verification
- 4 Fluorescent protein transduction
- 1 Neuroepithelial aggregate formation
- 2 Rosette formation and expansion
- 3 Astroglial differentiation induction
- 4 Green fluorescent protein transduction
- 5 Organoid formation from dissociated astrocytes
- 6 Organoid transfer to spheroid microplate
- 1 Meningioma cell preparation and organoid seeding
- 2 Live imaging of meningioma-organoid interactions
- 3 Coculture maintenance and medium changes
- 4 Terminal imaging and quantification at day 14
- 5 Sample collection for single-cell RNA sequencing
- 1 Generation of dCas9-KRAB meningioma cells
- 2 sgRNA cloning and lentiviral production
- 3 sgRNA transduction and selection
- 4 Gene repression verification by qRT-PCR
- 5 2D proliferation assay with CRISPR or pharmacologic inhibition
- 6 Ki-67 immunofluorescence and proliferation quantification
- 7 3D coculture proliferation inhibition assay
Full SOP
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Attribution
This SOP was authored by Organthis based on the published method in Magill et al., 2020. The originating laboratory holds no rights in this SOP and has not endorsed it unless marked Verified.
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