Stereotaxic intrastriatal implantation of human retinal pigment epithelial (hRPE) cells attached to gelatin microcarriers: a potential new cell therapy for Parkinson's disease.
J Neural Transm Suppl
; (65): 215-27, 2003.
Article
in En
| MEDLINE
| ID: mdl-12946059
ABSTRACT
Human retinal pigment epithelial (hRPE) cells are dopaminergic support cells in the neural retina. Stereotaxic intrastriatal implantation of hRPE cells attached to gelatin microcarriers (Spheramine) in rodent and non-human primate models of Parkinson's disease (PD) produces long term amelioration of motor and behavioral deficits, with histological and PET evidence of cell survival without immunosuppression. Long-term safety in cynomologous monkeys has also been demonstrated. Six H&Y stage III/IV PD patients were enrolled in a one-year, open-label, single center study to evaluate the safety and efficacy of Spheramine (approximately 325,000 cells) implanted in the most affected post-commissural putamen. All patients tolerated the implantation of Spheramine well and demonstrated improvement. At 6, 9, and 12 months post-operatively, the mean UPDRS-Motor score "off", the primary outcome measure, improved 33%, (n = 6), 42% (n = 6), and 48% (n = 3), respectively. No "off-state" dyskinesias have been observed. Based on these preliminary results, Spheramine appears to show promise in treating late stage PD patients.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Parkinson Disease
/
Pigment Epithelium of Eye
/
Brain Tissue Transplantation
/
Stereotaxic Techniques
/
Cell Transplantation
/
Corpus Striatum
Type of study:
Prognostic_studies
Limits:
Animals
/
Humans
Language:
En
Journal:
J Neural Transm Suppl
Year:
2003
Document type:
Article
Affiliation country: