Abstract
A major challenge for clinical application of pluripotent stem cell therapy for Parkinson's disease (PD) is large-scale manufacturing and cryopreservation of neurons that can be efficiently prepared with minimal manipulation. To address this obstacle, midbrain dopamine neurons were derived from human induced pluripotent stem cells (iPSC-mDA) and cryopreserved in large production lots for biochemical and transplantation studies. Cryopreserved, post-mitotic iPSC-mDA neurons retained high viability with gene, protein, and electrophysiological signatures consistent with midbrain floor-plate lineage. To test therapeutic efficacy, cryopreserved iPSC-mDA neurons were transplanted without subculturing into the 6-OHDA-lesioned rat and MPTP-lesioned non-human-primate models of PD. Grafted neurons retained midbrain lineage with extensive fiber innervation in both rodents and monkeys. Behavioral assessment in 6-OHDA-lesioned rats demonstrated significant reversal in functional deficits up to 6 months post transplantation with reinnervation of the host striatum and no aberrant growth, supporting the translational development of pluripotent cell-based therapies in PD.
Original language | English (US) |
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Pages (from-to) | 149-161 |
Number of pages | 13 |
Journal | Stem cell reports |
Volume | 9 |
Issue number | 1 |
DOIs | |
State | Published - Jul 11 2017 |
Keywords
- 6-OHDA
- MPTP
- Parkinson's disease
- cryopreservation
- iPSC
- midbrain dopamine neuron
- non-human primate
ASJC Scopus subject areas
- Genetics
- Biochemistry
- Cell Biology
- Developmental Biology