Research Project
Grant-in-Aid for Scientific Research (C)
The amygdala plays a key role in Pavlovian fear/threat conditioning which is accomplished by associating a conditioned stimuli (CS) and an unconditioned stimuli (US). While molecular mechanisms underlying CS-US association and plasticity in the CS pathway has been extensively studied, not much is known about the nature of US pathway(S) and their plasticity. Here we found that neuropeptide calcitonin gene-related peptide (CGRP) plays critical roles in formalin-induce behavioral plasticity in vivo as well as synaptic plasticity in the parabrachial-amygdaloid pathway in acute brain slices.
従来の研究では、連合学習におけるCS経路可塑性の分子メカニズムやその生理的意義が中心であったが、本研究成果によりUS経路の可塑性メカニズムの一端を明らかにすることができた。腕傍核から扁桃体への直接経路は慢性疼痛モデルや心的外傷後ストレス障害モデルにおいて可塑性異常が報告されており、本研究成果により、多様な疾患に伴う負情動制御破綻のメカニズム解明や将来的にはその治療法開発にも繋がる基礎的知見を得ることができた。
All 2020 2019 2018 2017 2016 Other
All Journal Article (9 results) (of which Peer Reviewed: 9 results, Open Access: 7 results, Acknowledgement Compliant: 2 results) Presentation (11 results) (of which Int'l Joint Research: 2 results, Invited: 4 results) Remarks (1 results)
Nat. Commun
Volume: 11(1) Issue: 1 Pages: 859-859
10.1038/s41467-020-14697-z
Current Opinion in Behavioral Sciences
Volume: 26 Pages: 18-24
Molecular pain
Volume: 14 Pages: 1-21
European Journal of Neuroscience
Volume: 46 Issue: 6 Pages: 2149-2160
10.1111/ejn.13662
Science
Volume: 355 Issue: 6323 Pages: 398-403
10.1126/science.aal2690
Nature Communications
Volume: 7:12319 Issue: 1 Pages: 1-11
10.1038/ncomms12319
Journal of neurophysiology
Volume: xx Issue: 6 Pages: 2721-2739
10.1152/jn.00946.2015
Epilepsia
Volume: 57 Issue: 3 Pages: 495-505
10.1111/epi.13315
Journal of Neurochemistry
Volume: 136: Issue: 1 Pages: 36-47
10.1111/jnc.13379
http://watabe-lab.jp/