Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing Mice
Purkinje cells (PCs) are the principal cells of the cerebellar cortex and form a central element in the modular organization of the cerebellum. Differentiation of PCs based on gene expression profiles revealed two subpopulations with distinct connectivity, action potential firing and learning-induce...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Cells |
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| Online Access: | https://www.mdpi.com/2073-4409/12/4/623 |
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| author | Gerrit C. Beekhof Martijn Schonewille |
| author_facet | Gerrit C. Beekhof Martijn Schonewille |
| author_sort | Gerrit C. Beekhof |
| collection | DOAJ |
| description | Purkinje cells (PCs) are the principal cells of the cerebellar cortex and form a central element in the modular organization of the cerebellum. Differentiation of PCs based on gene expression profiles revealed two subpopulations with distinct connectivity, action potential firing and learning-induced activity changes. However, which basal cell physiological features underlie the differences between these subpopulations and to what extent they integrate input differentially remains largely unclear. Here, we investigate the cellular electrophysiological properties of PC subpopulation in adult and juvenile mice. We found that multiple fundamental cell physiological properties, including membrane resistance and various aspects of the action potential shape, differ between PCs from anterior and nodular lobules. Moreover, the two PC subpopulations also differed in the integration of negative and positive current steps as well as in size of the hyperpolarization-activated current. A comparative analysis in juvenile mice confirmed that most of these lobule-specific differences are already present at pre-weaning ages. Finally, we found that current integration in PCs is input history-dependent for both positive and negative currents, but this is not a distinctive feature between anterior and nodular PCs. Our results support the concept of a fundamental differentiation of PCs subpopulations in terms of cell physiological properties and current integration, yet reveals that history-dependent input processing is consistent across PC subtypes. |
| first_indexed | 2024-03-11T09:00:57Z |
| format | Article |
| id | doaj.art-753a60068a04400080153a250eb7917d |
| institution | Directory Open Access Journal |
| issn | 2073-4409 |
| language | English |
| last_indexed | 2024-03-11T09:00:57Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Cells |
| spelling | doaj.art-753a60068a04400080153a250eb7917d2023-11-16T19:44:56ZengMDPI AGCells2073-44092023-02-0112462310.3390/cells12040623Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing MiceGerrit C. Beekhof0Martijn Schonewille1Department of Neuroscience, Erasmus MC, 3015 AA Rotterdam, The NetherlandsDepartment of Neuroscience, Erasmus MC, 3015 AA Rotterdam, The NetherlandsPurkinje cells (PCs) are the principal cells of the cerebellar cortex and form a central element in the modular organization of the cerebellum. Differentiation of PCs based on gene expression profiles revealed two subpopulations with distinct connectivity, action potential firing and learning-induced activity changes. However, which basal cell physiological features underlie the differences between these subpopulations and to what extent they integrate input differentially remains largely unclear. Here, we investigate the cellular electrophysiological properties of PC subpopulation in adult and juvenile mice. We found that multiple fundamental cell physiological properties, including membrane resistance and various aspects of the action potential shape, differ between PCs from anterior and nodular lobules. Moreover, the two PC subpopulations also differed in the integration of negative and positive current steps as well as in size of the hyperpolarization-activated current. A comparative analysis in juvenile mice confirmed that most of these lobule-specific differences are already present at pre-weaning ages. Finally, we found that current integration in PCs is input history-dependent for both positive and negative currents, but this is not a distinctive feature between anterior and nodular PCs. Our results support the concept of a fundamental differentiation of PCs subpopulations in terms of cell physiological properties and current integration, yet reveals that history-dependent input processing is consistent across PC subtypes.https://www.mdpi.com/2073-4409/12/4/623purkinje cellaction potentialcurrent integrationaldoczebriniilobule specific |
| spellingShingle | Gerrit C. Beekhof Martijn Schonewille Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing Mice Cells purkinje cell action potential current integration aldoc zebrinii lobule specific |
| title | Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing Mice |
| title_full | Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing Mice |
| title_fullStr | Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing Mice |
| title_full_unstemmed | Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing Mice |
| title_short | Lobule-Related Action Potential Shape- and History-Dependent Current Integration in Purkinje Cells of Adult and Developing Mice |
| title_sort | lobule related action potential shape and history dependent current integration in purkinje cells of adult and developing mice |
| topic | purkinje cell action potential current integration aldoc zebrinii lobule specific |
| url | https://www.mdpi.com/2073-4409/12/4/623 |
| work_keys_str_mv | AT gerritcbeekhof lobulerelatedactionpotentialshapeandhistorydependentcurrentintegrationinpurkinjecellsofadultanddevelopingmice AT martijnschonewille lobulerelatedactionpotentialshapeandhistorydependentcurrentintegrationinpurkinjecellsofadultanddevelopingmice |