ELAVL4, splicing, and glutamatergic dysfunction precede neuron loss in MAPT mutation cerebral organoids
Source Bowles et al., 2021 · Ronald M. Loeb Center for Alzheimer's Disease, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai · 10.1016/j.cell.2021.07.003
Abstract
This protocol describes the generation and characterization of iPSC-derived cerebral organoids expressing the tau-V337M mutation causing frontotemporal dementia. The organoids recapitulate aspects of tauopathy including selective loss of glutamatergic neurons, autophagy-lysosomal dysfunction, tau accumulation, and aberrant splicing driven by dysregulated ELAVL4 expression, providing a platform for identifying early pathological events and testing therapeutic interventions.
Protocol overview
15 steps across 4 phases
- 1 iPSC Culture Maintenance
- 2 Single Cell Dissociation
- 3 Cell Washing and Counting
- 4 AggreWell Plate Preparation
- 5 Spheroid Formation
- 6 Transfer Spheroids to Differentiation Medium
- 7 Initial Dorsal Forebrain Patterning
- 8 Transition to Neural Medium
- 9 Separate Fused Organoids
- 10 BDNF and NT3 Supplementation
- 11 Long-term Maturation
- 12 Continue Organoid Separation
- 13 Timepoint Harvest at 2 Months
- 14 Timepoint Harvest at 4 Months
- 15 Timepoint Harvest at 6 Months
Full SOP
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Attribution
This SOP was authored by Organthis based on the published method in Bowles et al., 2021. The originating laboratory holds no rights in this SOP and has not endorsed it unless marked Verified.
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