Figure 2.

Schematic illustration of possible sources of stem cells for therapy in Parkinson's disease. 1) Neural stem cells (NSCs) from human fetal brain, expanded and differentiated to DA-ergic neurons; 2) Pluripotent cells generated from blastocysts (ESCs) or fibroblasts (iPSCs), expanded and differentiated to DA-ergic neurons; 3) DA-ergic neurons generated by direct conversion of fibroblasts; 4) Bone marrow-derived mesenchymal stem cells (MSCs).

Politis and Lindvall BMC Medicine 2012 10:1   doi:10.1186/1741-7015-10-1
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