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ヒト胎児腹側中脳移植はパーキンソン病に対する細胞移植療法の有効性を示唆したが,倫理的問題や移植片誘発ジスキネジア(graft-induced dyskinesias:GID)などの課題を提起した。最近,iPSC/hESC由来ドパミン神経前駆細胞移植の安全性と移植片の生着,ならびにGIDの回避が示されつつある。今後はより大規模な臨床試験によって,安全性と臨床的有効性が確認されることが期待される。
Abstract
Human fetal ventral mesencephalic tissue transplantation provided early evidence supporting the efficacy of cell replacement therapy for Parkinson's disease; however, major challenges, including ethical concerns and graft-induced dyskinesia (GID), were raised. Recently, clinical trials using dopaminergic progenitor cells derived from induced pluripotent or human embryonic stem cells have demonstrated favorable safety profiles, graft survival, and the apparent absence of GID. Well-designed clinical trials are required to confirm the safety and establish its definitive clinical efficacy.

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