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NMDA-Receptor Activation Induces Calpain-Mediated b-Catenin Cleavages for Triggering Gene Expression Kentaro Abe et al., Cell, (2007)

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Presentation on theme: "NMDA-Receptor Activation Induces Calpain-Mediated b-Catenin Cleavages for Triggering Gene Expression Kentaro Abe et al., Cell, (2007)"— Presentation transcript:

1 NMDA-Receptor Activation Induces Calpain-Mediated b-Catenin Cleavages for Triggering Gene Expression
Kentaro Abe et al., Cell, (2007)

2 NEURONAL ACTIVITY - REGULATION OF DENDRITIC BRANCH STABILITY BY NEURONAL ACTIVITY - ACTIVITY-DEPENDENT MODULATION OF LOCAL CYTOSKELETON AND ADHESION MOLECULES - REGULATION OF DENDRITIC DEVELOPMENT BY ACTIVITY DEPENDENT GENE EXPRESSION 뉴런은 일반 셀들과 다른 여러가지 특징들이 존재하는데, 그중에 대표적인 것이 뉴런날 엑티비티가 존재하 이런 뉴런의 Chen Y et al., J Neurobiol, (2005)

3 LTP ( long-terrm potentiation)
Memory formation Chen Y et al., J Neurobiol, (2005)

4 NMDA (N-methyl-D-aspartate) receptor
Cooke SF et al., Brain, (2006)

5 Calpain (calcium-dependent, non-lysosomal cysteine protease)
Franco SJ et al., J Cell Sci (2005)

6 Calpain regulates cell migration
Franco SJ et al., J Cell Sci (2005)

7 Motility-related calpain substrates of Calpain
Franco SJ et al., J Cell Sci (2005)

8 Activity-Dependent Cleavages of b-Catenin by Calpain
AVP : NMDA-R antagonist CNQX : AMPA-R antagonist MCPG : mGluR antagonist MDL28170 : calpain inhibitor

9 Activity-Dependent Cleavages of b-Catenin by Calpain
MDL28170 : calpain inhibitor

10 Nuclear Translocation of Cleaved b-Catenin Fragments
AVP : NMDA-R antagonist CNQX : AMPA-R antagonist MCPG : mGluR antagonist MDL28170 : calpain inhibitor

11 Activation of Tcf-Dependent Gene Transcription by the b-Catenin Fragments
AVP : NMDA-R antagonist, MDL28170 : calpain inhibitor

12 Activation of Tcf-Dependent Gene Transcription by the b-Catenin Fragments
MDL28170 : calpain inhibitor

13 Activation of Tcf-Dependent Gene Transcription by the b-Catenin Fragments

14 Calpain-Dependent b-Catenin Cleavage and Tcf Activation In Vivo


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