| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Cyclic adenosine monophosphate response element binding protein (CREB) is a transcription factor that is considered important for memory consolidation. We generated a transgenic mouse line that expressed probe proteins that emitted light in response to CREB phosphorylation. We found increased light emission from cerebral cortex of live Tg mouse after the acute treatment of imipramine, a tricyclic antidepressant. Increase in CREB phosphorylation in cerebral cortex by the same treatment was confirmed using western blotting. These results demonstrate this Tg mouse strain can be used for the imaging of CREB phosphorylation in live mouse brain.
Furthermore, we demonstrated the correlation between the change in CREB phosphorylation at a particular region in the brain and depression-like symptom induced by the administration of reserpine, a psychotropic agent. This result indicates CREB phosphorylation at selective brain region is important for the induction of depression-like symptom.
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