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neuron.tif

Road to vertebrates

 We study ascidian CNS (central nervous system) as a simple model system to understand chordate brain development and function at single-cell resolution. 

ホヤ成体2.jpg

Ciona intestinalis Adult

larva.jpg

Ciona intestinalis Larvae

Our main model is the ascidian, Ciona intestinalis.

系統樹 英語 vol.2.JPG

The ascidians are the closest animal to the vertebrate.

neuron.tif

Anti-synaptotagmin antibody

 My central nervous system

 is very simple !

The ascidian larva showed a tadpole-like shape and shared a basic body plan with vertebrates, including the dorsal tubular nervous system. The CNS of ascidian larvae contains about 350 cells, 177 cells of which are neurons, and the remaining are glial cells. Despite such simplicity, the CNS of ascidian larvae share several properties of the vertebrate brain.

プレゼンテーション2.jpg

 Glutamatergic neurons                          Peptidergic neurons

GABA/ Glycine neurons                           Dopaminergic neurons

Pan-neuron                                              Chorinergic neuron

Green :each neuron marker

Magenda:nulcear

We study the simple CNS of the ascidian as a model system to understand chordate brain development and function at single-cell resolution.

choline.tif
キャプチャ1.JPG
Ciona brain vesicle (2).JPG

Development and function of the neural networks

Differentiation and Development

Evolution of the brain

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