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In Search of Molecular Markers for Cerebellar Neurons

Journal

Publisher

MDPI
DOI: 10.3390/ijms22041850

Keywords

cerebellum; genetics; single-cell transcriptome; laser-capture microdissection; next-generation sequencing; neuronal marker

Funding

  1. Hong Kong Polytechnic University

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The cerebellum, responsible for motor coordination and balance, also plays a role in non-motor functions like cognition, speech, and language comprehension. Maldevelopment and dysfunction of the cerebellum can lead to various issues, making cell-specific markers for cerebellar neurons vital for understanding interactions between cell types.
The cerebellum, the region of the brain primarily responsible for motor coordination and balance, also contributes to non-motor functions, such as cognition, speech, and language comprehension. Maldevelopment and dysfunction of the cerebellum lead to cerebellar ataxia and may even be associated with autism, depression, and cognitive deficits. Hence, normal development of the cerebellum and its neuronal circuitry is critical for the cerebellum to function properly. Although nine major types of cerebellar neurons have been identified in the cerebellar cortex to date, the exact functions of each type are not fully understood due to a lack of cell-specific markers in neurons that renders cell-specific labeling and functional study by genetic manipulation unfeasible. The availability of cell-specific markers is thus vital for understanding the role of each neuronal type in the cerebellum and for elucidating the interactions between cell types within both the developing and mature cerebellum. This review discusses various technical approaches and recent progress in the search for cell-specific markers for cerebellar neurons.

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