ArticleFrontiers in neural circuits2019
Differential Striatal Axonal Arborizations of the Intratelencephalic and Pyramidal-Tract Neurons: Analysis of the Data in the MouseLight Database.
Article in Frontiers in neural circuits, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Article
- Traditions of Excellence: neuroanatomy at the forefront of the new era.Anatomical science international · 2025Review
- Antipsychotic drugs selectively decorrelate long-range interactions in deep cortical layers.eLife · 2024Article
- Diverse axonal morphologies of individual callosal projection neurons reveal new insights into brain connectivity.Current opinion in neurobiology · 2024Review
- Article
- Translating single-neuron axonal reconstructions into meso-scale connectivity statistics in the mouse somatosensory thalamus.Frontiers in neuroinformatics · 2023Article
- Opponent Learning with Different Representations in the Cortico-Basal Ganglia Circuits.eNeuro · 2023Article
- Corticocortical innervation subtypes of layer 5 intratelencephalic cells in the murine secondary motor cortex.Cerebral cortex (New York, N.Y. : 1991) · 2022Article
- Benchmarking of tools for axon length measurement in individually-labeled projection neurons.PLoS computational biology · 2021Article
- Corticospinal populations broadcast complex motor signals to coordinated spinal and striatal circuits.Nature neuroscience · 2021Article
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3 authors.
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Abstract
There exist two major types of striatum-targeting neocortical neurons, specifically, intratelencephalic (IT) neurons and pyramidal-tract (PT) neurons. Regarding their striatal projections, it was once suggested that IT axons are extended whereas PT axons are primarily focal. However, subsequent study with an increased number of well-stained extended axons concluded that such an apparent distinction was spurious due to limited sample size. Recent work using genetically labeled neurons reintroduced the differential spatial extent of the striatal projections of IT and PT neurons through population-level analyses, complemented by observations of single axons. However, quantitative IT vs. PT comparison of a large number of axons remained to be conducted. We analyzed the data of axonal end-points of 161 IT neurons and 33 PT neurons in the MouseLight database (http://ml-neuronbrowser.janelia.org/). The number of axonal end-points in the ipsilateral striatum exhibits roughly monotonically decreasing distributions in both neuron types. Excluding neurons with no ipsilateral end-point, the distributions of the logarithm of the number of ipsilateral end-points are considerably overlapped between IT and PT neurons, although the proportion of neurons having more than 50 ipsilateral end-points is somewhat larger in IT neurons than in PT neurons. Looking at more details, among IT subpopulations in the secondary motor area (MOs), layer 5 neurons and bilateral striatum-targeting layer 2/3 neurons, but not contralateral striatum-non-targeting layer 2/3 neurons, have a larger number of ipsilateral end-points than MOs PT neurons. We also found that IT ipsilateral striatal axonal end-points are on average more widely distributed than PT end-points, especially in the medial-lateral direction. These results indicate that IT and PT striatal axons differ in the frequencies and spatial extent of end-points while there are wide varieties within each neuron type.
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