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Dopamine neurons derived from human ES cells efficiently engraft in animal models of Parkinson’s disease
A new strategy for derivation of human midbrain dopamine neurons from pluripotent cells was developed; transplantation of the neurons in mice, rats and parkinsonian monkeys show they are a promising source of cells for applications in regenerative medicine. Repairing parkinsonian tissue Lorenz Stude...
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Published in: | Nature (London) 2011-12, Vol.480 (7378), p.547-551 |
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Main Authors: | , , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A new strategy for derivation of human midbrain dopamine neurons from pluripotent cells was developed; transplantation of the neurons in mice, rats and parkinsonian monkeys show they are a promising source of cells for applications in regenerative medicine.
Repairing parkinsonian tissue
Lorenz Studer and colleagues have developed a new strategy for the efficient derivation of human midbrain dopamine (DA) neurons from pluripotent stem cells. The DA neurons showed functionality
in vivo
and achieved long-term engraftment in three Parkinson's disease model systems (6-OHDA-lesioned mice and rats, and transplantation into parkinsonian monkeys). The DA neurons are a promising source of cells for applications in regenerative medicine.
Human pluripotent stem cells (PSCs) are a promising source of cells for applications in regenerative medicine. Directed differentiation of PSCs into specialized cells such as spinal motoneurons
1
or midbrain dopamine (DA) neurons
2
has been achieved. However, the effective use of PSCs for cell therapy has lagged behind. Whereas mouse PSC-derived DA neurons have shown efficacy in models of Parkinson’s disease
3
,
4
, DA neurons from human PSCs generally show poor
in vivo
performance
5
. There are also considerable safety concerns for PSCs related to their potential for teratoma formation or neural overgrowth
6
,
7
. Here we present a novel floor-plate-based strategy for the derivation of human DA neurons that efficiently engraft
in vivo
, suggesting that past failures were due to incomplete specification rather than a specific vulnerability of the cells. Midbrain floor-plate precursors are derived from PSCs 11 days after exposure to small molecule activators of sonic hedgehog (SHH) and canonical WNT signalling. Engraftable midbrain DA neurons are obtained by day 25 and can be maintained
in vitro
for several months. Extensive molecular profiling, biochemical and electrophysiological data define developmental progression and confirm identity of PSC-derived midbrain DA neurons.
In vivo
survival and function is demonstrated in Parkinson’s disease models using three host species. Long-term engraftment in 6-hydroxy-dopamine-lesioned mice and rats demonstrates robust survival of midbrain DA neurons derived from human embryonic stem (ES) cells, complete restoration of amphetamine-induced rotation behaviour and improvements in tests of forelimb use and akinesia. Finally, scalability is demonstrated by transplantation into parkinsonian monkeys. |
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ISSN: | 0028-0836 1476-4687 |
DOI: | 10.1038/nature10648 |