Optic Vesicle-like Structures Derived from Human Pluripotent Stem Cells
Source Meyer et al., 2011 · Waisman Center, University of Wisconsin, Madison · 10.1002/stem.674
Abstract
This protocol describes the derivation of optic vesicle-like (OV) structures from human pluripotent stem cells (hESCs and hiPSCs) through directed neural differentiation. OV-like structures are enriched populations of retinal progenitor cells that can be isolated by morphological selection and differentiated into major neuroretinal cell types (photoreceptors, retinal ganglion cells, bipolar cells, amacrine cells) and retinal pigment epithelium (RPE). The method enables study of human retinal development and disease modeling, including functional assessment of disease-specific defects in patient-derived hiPSC lines.
Protocol overview
25 steps across 8 phases
- 1 Culture hESCs and hiPSCs in ESC medium
- 1 Culture colonies as suspended aggregates
- 2 Switch to Neural Induction Medium
- 3 Optional: Treat with Noggin/Dorsomorphin and DKK1/XAV939
- 1 Plate aggregates onto laminin-coated substrate
- 2 Mechanically isolate neural rosette-containing clusters
- 3 Culture isolated rosettes as cellular aggregates
- 1 Visually identify and separate vesicle-like structures
- 2 Culture vesicle-like structures independently in RDM
- 3 Culture nonvesicular spheres independently in RDM
- 1 Continue culture of OV-like structures in RDM
- 2 Optional: Sample cultures for gene expression analysis
- 1 Add Activin A to OV-like structures
- 2 Identify and isolate pigmented structures
- 3 Plate pigmented structures on laminin-coated substrate
- 4 Isolate and dissociate RPE cell patches
- 5 Remove mitogens and assess RPE phenotype
- 1 Differentiate OV-like structures for electrophysiology
- 2 Prepare patch-clamp recording setup
- 3 Perform whole-cell patch-clamp recordings
- 4 Analyze and plot current-voltage relationships
- 1 Load RPE cells with Fura-2 AM
- 2 Wash cells and prepare for imaging
- 3 Perform calcium imaging
- 4 Analyze calcium imaging data
Full SOP
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Attribution
This SOP was authored by Organthis based on the published method in Meyer et al., 2011. The originating laboratory holds no rights in this SOP and has not endorsed it unless marked Verified.
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