Abstract
Embryonic stem cells (ESCs) promise an unlimited source of defined cells for cell transplantation therapy, while protocols for derivation of homogeneous populations of desirable cell types are yet to be developed and/or refined. Gamma aminobutyric acid (GABA) is a major inhibitory neurotransmitter in the central nervous system, and disturbed GABAergic signaling is associated with a host of neurological conditions. We developed a simple ES cell differentiation protocol which led to the production of uniform GABAergic neurons in ∼ 2 weeks. The differentiation protocol involved treatment of embryoid bodies (EBs) with high concentrations (10-5-10-4 M) of all-trans-retinoic acid (RA) for 3 days. After plating these EBs on attached dishes in neural supportive medium, 93-96% of the cells became GABA-positive neurons in 7-11 days. These cells also expressed immature neuronal markers with voltage-gated delayed rectifier potassium currents, suggesting that they were immature GABAergic neurons. The technology may have implications for modeling and treatment of GABAergic signaling-related diseases and injuries.
Original language | English (US) |
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Pages (from-to) | 407-416 |
Number of pages | 10 |
Journal | Experimental Neurology |
Volume | 217 |
Issue number | 2 |
DOIs | |
State | Published - Jun 2009 |
Externally published | Yes |
Keywords
- Embryoid body
- Embryonic stem cells
- GABAergic neurons
- Retinoic acid
ASJC Scopus subject areas
- Neurology
- Developmental Neuroscience