Retinal Organoids for Disease Modelling (2016)
Source Lowe et al., 2016 · Albert Einstein College of Medicine, Department of Genetics and Department of Ophthalmology and Visual Sciences, Bronx, NY 10461, USA · 10.1016/j.stemcr.2016.03.011
Abstract
This protocol establishes an efficient method for generating retinal organoids from human embryonic stem cells via Matrigel-aided cyst formation, spontaneous attachment and spreading, and Dispase-mediated detachment followed by floating culture. The self-organization of retinal organoids requires intercellular adhesion-dependent cell survival and ROCK-regulated actomyosin-driven forces, and produces stratified retinal tissue comprising neuroretina, ciliary margin, and retinal pigment epithelium with mature photoreceptors displaying outer segments.
Protocol overview
17 steps across 5 phases
- a Harvest and prepare hESC sheets
- b Suspend cell pellet in ice-cold Matrigel
- c Gently disperse Matrigel/hESC clumps
- d Plate dispersed clumps into 24-well plate
- e Transfer cysts to new plates for expansion
- a Culture cysts in adherent plates with medium changes
- b Verify patterning by microscopy
- a Prepare medium and reagents for detachment
- b Add Dispase and optional inhibitors to adherent cultures
- c Retrieve detached cell sheets and rinse
- d Perform immunostaining of detached sheets (optional)
- a Initiate floating culture of detached cell sheets
- b Monitor organoid formation and morphology
- c Transition to long-term culture medium
- d Immunostaining of organoids at intermediate timepoints
- a Maintain long-term floating culture
- b Electron microscopy analysis of outer segments (optional)
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Attribution
This SOP was written by Organthis based on the published method in Lowe et al., 2016. Once the originating laboratory has confirmed it, the SOP is marked Verified.
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