| Budget Amount *help |
¥107,770,000 (Direct Cost: ¥82,900,000、Indirect Cost: ¥24,870,000)
Fiscal Year 2015: ¥20,410,000 (Direct Cost: ¥15,700,000、Indirect Cost: ¥4,710,000)
Fiscal Year 2014: ¥20,410,000 (Direct Cost: ¥15,700,000、Indirect Cost: ¥4,710,000)
Fiscal Year 2013: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
Fiscal Year 2012: ¥21,320,000 (Direct Cost: ¥16,400,000、Indirect Cost: ¥4,920,000)
Fiscal Year 2011: ¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
|
|---|
| Outline of Final Research Achievements |
It is believed that long-term memory is initially stored as changes in the number of AMPA receptors at the postsynaptic sites and eventually converted into morphological changes at synapses for longer-term memory. However, molecular mechanisms underlying these processes have not been fully understood yet. Dendrites are surrounded by extracellular matrix (ECM) proteins, which are enriched with various sugar chains. Thus, AMPA receptor trafficking and morphological changes must be accompanied with changes of the surrounding ECM. In this study, we aimed to clarify how functional and morphological synaptic plasticity is regulated by the ECM in the cerebellum. We found that changes in neuronal activity induced AMPA receptor trafficking to/from lysosome-like organelle, which contained various kinds of glycosydase. Using a temporally-controlled gene knockout method, we also clarified how a single transcription factor regulated morphogenesis of spines and dendrites of Purkinje cells in vivo.
|
