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| Content Provider | PubMed Central |
|---|---|
| Author | Bradley, Watmuff Hartley, Brigham J. Hunt, Cameron P. J. Fabb, Stewart A. Pouton, Colin W. Haynes, John M. |
| Copyright Year | 2015 |
| Abstract | PITX3 expression is confined to adult midbrain dopaminergic (mDA) neurons. In this study we describe the generation and basic functional characteristics of mDA neurons derived from a human pluripotent stem cell (hPSC) line expressing eGFP under the control of the PITX3 promoter. Flow cytometry showed that eGFP was evident in 15% of the neuron population at day 12 of differentiation and this level was maintained until at least day 80. From days 20 to 80 of differentiation intracellular chloride decreased and throughout this period around ∼20% of PITX3eGFP/w neurons exhibited spontaneous Ca2+ transients (from 3.3 ± 0.3 to 5.0 ± 0.1 min-1, respectively). These neurons also responded to any of ATP, glutamate, acetylcholine, or noradrenaline with elevations of intracellular calcium. As neuronal cultures matured more dopamine was released and single PITX3eGFP/w neurons began to respond to more than one neurotransmitter. MPP+ and tumor necrosis factor (TNF), but not prostaglandin E2, caused death of the ∼50% of PITX3eGFP/w neurons (day 80). Tracking eGFP using time lapse confocal microscopy over 24 h demonstrated significant TNF-mediated neurite retraction over time. This work now shows that these PITX3eGFP/w neurons are amenable to flow cytometry, release dopamine and respond to multiple neurotransmitters with elevations of intracellular calcium, we believe that they represent a versatile system for neuropharmacological and neurotoxicological studies. |
| Related Links | http://dx.doi.org/10.3389/fncel.2015.00104 |
| Starting Page | 104 |
| File Format | |
| ISSN | 16625102 |
| e-ISSN | 16625102 |
| Journal | Frontiers in Cellular Neuroscience |
| Volume Number | 9 |
| Language | English |
| Publisher | Frontiers Media S.A. |
| Publisher Date | 2015-03-01 |
| Access Restriction | Open |
| Rights Holder | Frontiers Media S.A. |
| Subject Keyword | Cellular and Molecular Neuroscience Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cellular and Molecular Neuroscience |
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