Midbrain Dopaminergic Organoids from Human Pluripotent Stem Cells
Source Jo et al. · Sloan Kettering Institute / Weill Cornell Medicine, New York, USA · 10.1016/j.stem.2016.07.005
Abstract
Jo et al. generated midbrain-specific organoids containing functional dopaminergic neurons that produce neuromelanin-like granules and release dopamine, closely mimicking the substantia nigra. This Cell Stem Cell 2016 protocol provides a critical platform for Parkinson disease modeling and dopaminergic drug screening.
Protocol overview
16 steps across 4 phases
- 1 Dissociate hPSCs to single cells and form uniform embryoid bodies
- 2 Apply dual-SMAD inhibition and Wnt activation for neuroectodermal induction
- 3 Add midbrain patterning factors
- 1 Embed neuroectodermal spheroids in Matrigel
- 2 Culture in tissue growth induction medium with midbrain patterning factors
- 3 Transfer organoids to ultra-low-attachment 6-well plates
- 1 Culture organoids in final differentiation medium on orbital shaker
- 2 Perform regular medium changes
- 3 Monitor organoid growth and morphology
- 4 Optional: Accelerate neuromelanin production with L-DOPA or dopamine treatment
- 1 Prepare organoid cryosections for immunohistochemistry
- 2 Perform immunohistochemistry with midbrain and DA markers
- 3 Detect neuromelanin using Fontana-Masson staining
- 4 Perform flow cytometry to quantify dopaminergic neuronal populations
- 5 Record electrophysiology from hMLO neurons in situ
- 6 Measure dopamine content by HPLC
Full SOP
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Attribution
This SOP was authored by Organthis based on the published method in Jo et al.. The originating laboratory holds no rights in this SOP and has not endorsed it unless marked Verified.
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