Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive Dystonia
Striatal cholinergic dysfunction is a common phenotype associated with various forms of dystonia in which anti-cholinergic drugs have some therapeutic benefits. However, the underlying substrate of striatal cholinergic defects in dystonia remain poorly understood. In this study, we used a recently d...
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Frontiers Media S.A.
2018-06-01
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| Series: | Frontiers in Systems Neuroscience |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fnsys.2018.00028/full |
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| author | Gul Yalcin-Cakmakli Samuel J. Rose Rosa M. Villalba Lagena Williams Hyder A. Jinnah Ellen J. Hess Ellen J. Hess Yoland Smith Yoland Smith |
| author_facet | Gul Yalcin-Cakmakli Samuel J. Rose Rosa M. Villalba Lagena Williams Hyder A. Jinnah Ellen J. Hess Ellen J. Hess Yoland Smith Yoland Smith |
| author_sort | Gul Yalcin-Cakmakli |
| collection | DOAJ |
| description | Striatal cholinergic dysfunction is a common phenotype associated with various forms of dystonia in which anti-cholinergic drugs have some therapeutic benefits. However, the underlying substrate of striatal cholinergic defects in dystonia remain poorly understood. In this study, we used a recently developed knock-in mouse model of dopamine-responsive dystonia (DRD) with strong symptomatic responses to anti-cholinergic drugs, to assess changes in the prevalence and morphology of striatal cholinergic interneurons (ChIs) in a model of generalized dystonia. Unbiased stereological neuronal counts and Sholl analysis were used to address these issues. To determine the potential effect of aging on the number of ChIs, both young (3 months old) and aged (15 months old) mice were used. For purpose of comparisons with ChIs, the number of GABAergic parvalbumin (PV)-immunoreactive striatal interneurons was also quantified in young mice. Overall, no significant change in the prevalence of ChIs and PV-immunoreactive cells was found throughout various functional regions of the striatum in young DRD mice. Similar results were found for ChIs in aged animals. Subtle changes in the extent and complexity of the dendritic tree of ChIs were found in middle and caudal regions of the striatum in DRD mice. Additional immunohistochemical data also suggested lack of significant change in the expression of striatal cholinergic M1 and M4 muscarinic receptors immunoreactivity in DRD mice. Thus, together with our previous data from a knock-in mouse model of DYT-1 dystonia (Song et al., 2013), our data further suggest that the dysregulation of striatal cholinergic transmission in dystonia is not associated with major neuroplastic changes in the morphology or prevalence of striatal ChIs.Highlights-There is no significant change in the number of striatal ChIs in young and aged mice model of DRD-There is no significant change in the prevalence of striatal GABAergic PV-containing interneurons in the striatum of young mice models of DRD-Subtle morphological changes in the dendritic arborization of striatal ChIs are found in the middle and caudal tiers of the striatum in young mice models of DRD-The levels of both M1 and M4 muscarinic receptors immunoreactivity are not significantly changed in the striatum of DRD mice-Major changes in the prevalence and morphology of striatal ChIs are unlikely to underlie striatal cholinergic dysfunction in DRD |
| first_indexed | 2024-04-12T16:47:11Z |
| format | Article |
| id | doaj.art-83f588d0972c4ac798b7ec0b5b08b104 |
| institution | Directory Open Access Journal |
| issn | 1662-5137 |
| language | English |
| last_indexed | 2024-04-12T16:47:11Z |
| publishDate | 2018-06-01 |
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| spelling | doaj.art-83f588d0972c4ac798b7ec0b5b08b1042022-12-22T03:24:32ZengFrontiers Media S.A.Frontiers in Systems Neuroscience1662-51372018-06-011210.3389/fnsys.2018.00028363410Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive DystoniaGul Yalcin-Cakmakli0Samuel J. Rose1Rosa M. Villalba2Lagena Williams3Hyder A. Jinnah4Ellen J. Hess5Ellen J. Hess6Yoland Smith7Yoland Smith8Yerkes National Primate Research Center, Emory University, Atlanta, GA, United StatesDepartment of Pharmacology, Emory University, Atlanta, GA, United StatesYerkes National Primate Research Center, Emory University, Atlanta, GA, United StatesYerkes National Primate Research Center, Emory University, Atlanta, GA, United StatesDepartment of Neurology, Emory University, Atlanta, GA, United StatesDepartment of Pharmacology, Emory University, Atlanta, GA, United StatesDepartment of Neurology, Emory University, Atlanta, GA, United StatesYerkes National Primate Research Center, Emory University, Atlanta, GA, United StatesDepartment of Neurology, Emory University, Atlanta, GA, United StatesStriatal cholinergic dysfunction is a common phenotype associated with various forms of dystonia in which anti-cholinergic drugs have some therapeutic benefits. However, the underlying substrate of striatal cholinergic defects in dystonia remain poorly understood. In this study, we used a recently developed knock-in mouse model of dopamine-responsive dystonia (DRD) with strong symptomatic responses to anti-cholinergic drugs, to assess changes in the prevalence and morphology of striatal cholinergic interneurons (ChIs) in a model of generalized dystonia. Unbiased stereological neuronal counts and Sholl analysis were used to address these issues. To determine the potential effect of aging on the number of ChIs, both young (3 months old) and aged (15 months old) mice were used. For purpose of comparisons with ChIs, the number of GABAergic parvalbumin (PV)-immunoreactive striatal interneurons was also quantified in young mice. Overall, no significant change in the prevalence of ChIs and PV-immunoreactive cells was found throughout various functional regions of the striatum in young DRD mice. Similar results were found for ChIs in aged animals. Subtle changes in the extent and complexity of the dendritic tree of ChIs were found in middle and caudal regions of the striatum in DRD mice. Additional immunohistochemical data also suggested lack of significant change in the expression of striatal cholinergic M1 and M4 muscarinic receptors immunoreactivity in DRD mice. Thus, together with our previous data from a knock-in mouse model of DYT-1 dystonia (Song et al., 2013), our data further suggest that the dysregulation of striatal cholinergic transmission in dystonia is not associated with major neuroplastic changes in the morphology or prevalence of striatal ChIs.Highlights-There is no significant change in the number of striatal ChIs in young and aged mice model of DRD-There is no significant change in the prevalence of striatal GABAergic PV-containing interneurons in the striatum of young mice models of DRD-Subtle morphological changes in the dendritic arborization of striatal ChIs are found in the middle and caudal tiers of the striatum in young mice models of DRD-The levels of both M1 and M4 muscarinic receptors immunoreactivity are not significantly changed in the striatum of DRD mice-Major changes in the prevalence and morphology of striatal ChIs are unlikely to underlie striatal cholinergic dysfunction in DRDhttps://www.frontiersin.org/article/10.3389/fnsys.2018.00028/fullacetylcholinestriatumparvalbuminmuscarinic receptoraging |
| spellingShingle | Gul Yalcin-Cakmakli Samuel J. Rose Rosa M. Villalba Lagena Williams Hyder A. Jinnah Ellen J. Hess Ellen J. Hess Yoland Smith Yoland Smith Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive Dystonia Frontiers in Systems Neuroscience acetylcholine striatum parvalbumin muscarinic receptor aging |
| title | Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive Dystonia |
| title_full | Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive Dystonia |
| title_fullStr | Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive Dystonia |
| title_full_unstemmed | Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive Dystonia |
| title_short | Striatal Cholinergic Interneurons in a Knock-in Mouse Model of L-DOPA-Responsive Dystonia |
| title_sort | striatal cholinergic interneurons in a knock in mouse model of l dopa responsive dystonia |
| topic | acetylcholine striatum parvalbumin muscarinic receptor aging |
| url | https://www.frontiersin.org/article/10.3389/fnsys.2018.00028/full |
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