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- W1996433736 abstract "Dopaminergic cell transplantation is a promising therapeutic approach for the treatment of Parkinson's disease, the potential of which is limited due to poor survival and low dopamine content within engrafted tissue. In this study, the ability of transforming growth factor-β2 (TGF-β2) to influence transplant survival was evaluated. Cell suspensions containing fetal rat ventral mesencephalon (VM) cells were incubated prior to surgery with vehicle (DPBS), varying concentrations of TGF-β2 (5–1000 ng/ml), or a pan-specific antibody against TGF-β (1D11, 100 ng/ml). VM cell suspensions (200,000 cells) were unilaterally implanted into the striatum of adult Sprague-Dawley rats (n = 5–11 animals/group). Following a 3-week survival period, small but viable VM grafts containing tyrosine hydroxylase-positive (TH+) neurons and fibers were present in all animals. Addition of TGF-β2 resulted in a steep, bell-shaped dose-response curve with a significant effect on TH+/dopamine cell survival. At 50 ng/ml TGF-β2, the number of surviving dopamine neurons was increased twofold compared with controls. Addition of TGF-β2 or 1D11 did not significantly influence graft volume. Further studies, possibly in combination with other neurotrophic factors, need to be performed to obtain a greater understanding of the effects of TGF-β on dopamine neurons and fetal VM cell engraftment." @default.
- W1996433736 created "2016-06-24" @default.
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- W1996433736 date "2004-04-01" @default.
- W1996433736 modified "2023-10-15" @default.
- W1996433736 title "The Effects of Transforming Growth Factor-β2 on Dopaminergic Graft Survival" @default.
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- W1996433736 doi "https://doi.org/10.3727/000000004783984043" @default.
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