Graft placement and uneven pattern of reinnervation in the striatum is important for development of graft-induced dyskinesia.
Carlsson, Thomas LU ; Winkler, Christian LU ; Lundblad, Martin LU ; Cenci Nilsson, Angela LU
; Björklund, Anders
LU
and Kirik, Deniz
LU
(2006)
In Neurobiology of Disease
21(3).
p.657-668
- Abstract
- In two recent double-blind clinical trials of fetal ventral mesencephalic cell transplants into the striatum in patients with Parkinson's disease (PD), a significant proportion of the grafted patients developed dyskinetic side effects, which were not seen in the sham operated patients. Comparison between dyskinetic and non-dyskinetic grafted patients in one of the trials suggested that an uneven pattern of striatal reinnervation might be the leading cause of the dyskinesias. Here, we studied the importance of graft placement for the development of dyskinesias in parkinsonian rats. Abnormal involuntary movements resembling peak-dose dyskinesias seen in PD patients were induced by daily injections of L-DOPA for 6 weeks. The dyskinetic... (More)
- In two recent double-blind clinical trials of fetal ventral mesencephalic cell transplants into the striatum in patients with Parkinson's disease (PD), a significant proportion of the grafted patients developed dyskinetic side effects, which were not seen in the sham operated patients. Comparison between dyskinetic and non-dyskinetic grafted patients in one of the trials suggested that an uneven pattern of striatal reinnervation might be the leading cause of the dyskinesias. Here, we studied the importance of graft placement for the development of dyskinesias in parkinsonian rats. Abnormal involuntary movements resembling peak-dose dyskinesias seen in PD patients were induced by daily injections of L-DOPA for 6 weeks. The dyskinetic animals received about 130.000 fetal ventral mesencephalic cells as single grafts placement in the rostral or the caudal aspect of the head of striatum. The results show that grafts placed in the caudal, but not the rostral, part are effective in reducing the L-DOPA-induced limb and orolingual dyskinesia, predominantly seen as hyperkinesia. The same grafts, however, also induced a new type of dyskinetic behavior after activation with amphetamine, which were not seen in non-grafted lesion controls. The severity of these abnormal involuntary movements was significantly correlated with a higher graft-derived dopaminergic reinnervation in the caudal aspect of the head of striatum relative to the rostral part. The results indicate that graft-induced dyskinesias in PD patients may be linked to single, small graft deposits that provide an uneven, patchy reinnervation of the putamen. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/148277
- author
- Carlsson, Thomas
LU
; Winkler, Christian
LU
; Lundblad, Martin
LU
; Cenci Nilsson, Angela
LU
; Björklund, Anders
LU
and Kirik, Deniz
LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ventral mesenchephalon, Cell transplantation, Dyskinesia, l-DOPA, Parkinson's disease, Motor behavior
- in
- Neurobiology of Disease
- volume
- 21
- issue
- 3
- pages
- 657 - 668
- publisher
- Elsevier
- external identifiers
-
- pmid:16256359
- wos:000235899100021
- scopus:33244459813
- pmid:16256359
- ISSN
- 0969-9961
- DOI
- 10.1016/j.nbd.2005.09.008
- language
- English
- LU publication?
- yes
- id
- f018c891-d796-40e4-b7a3-67318de357d6 (old id 148277)
- alternative location
- http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16256359&dopt=Abstract
- date added to LUP
- 2016-04-01 12:27:49
- date last changed
- 2022-01-27 05:26:33
@article{f018c891-d796-40e4-b7a3-67318de357d6,
abstract = {{In two recent double-blind clinical trials of fetal ventral mesencephalic cell transplants into the striatum in patients with Parkinson's disease (PD), a significant proportion of the grafted patients developed dyskinetic side effects, which were not seen in the sham operated patients. Comparison between dyskinetic and non-dyskinetic grafted patients in one of the trials suggested that an uneven pattern of striatal reinnervation might be the leading cause of the dyskinesias. Here, we studied the importance of graft placement for the development of dyskinesias in parkinsonian rats. Abnormal involuntary movements resembling peak-dose dyskinesias seen in PD patients were induced by daily injections of L-DOPA for 6 weeks. The dyskinetic animals received about 130.000 fetal ventral mesencephalic cells as single grafts placement in the rostral or the caudal aspect of the head of striatum. The results show that grafts placed in the caudal, but not the rostral, part are effective in reducing the L-DOPA-induced limb and orolingual dyskinesia, predominantly seen as hyperkinesia. The same grafts, however, also induced a new type of dyskinetic behavior after activation with amphetamine, which were not seen in non-grafted lesion controls. The severity of these abnormal involuntary movements was significantly correlated with a higher graft-derived dopaminergic reinnervation in the caudal aspect of the head of striatum relative to the rostral part. The results indicate that graft-induced dyskinesias in PD patients may be linked to single, small graft deposits that provide an uneven, patchy reinnervation of the putamen.}},
author = {{Carlsson, Thomas and Winkler, Christian and Lundblad, Martin and Cenci Nilsson, Angela and Björklund, Anders and Kirik, Deniz}},
issn = {{0969-9961}},
keywords = {{Ventral mesenchephalon; Cell transplantation; Dyskinesia; l-DOPA; Parkinson's disease; Motor behavior}},
language = {{eng}},
number = {{3}},
pages = {{657--668}},
publisher = {{Elsevier}},
series = {{Neurobiology of Disease}},
title = {{Graft placement and uneven pattern of reinnervation in the striatum is important for development of graft-induced dyskinesia.}},
url = {{https://lup.lub.lu.se/search/files/2933870/625175.pdf}},
doi = {{10.1016/j.nbd.2005.09.008}},
volume = {{21}},
year = {{2006}},
}