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第117回日本解剖学会総会・全国学術集会 講演プログラム・抄録集 PDF ...

第117回日本解剖学会総会・全国学術集会 講演プログラム・抄録集 PDF ...

第117回日本解剖学会総会・全国学術集会 講演プログラム・抄録集 PDF ...

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117 99<br />

OEPMI<br />

Singleneuron tracing study of thalamocortical projections arising<br />

from the rat mediodorsal nucleus<br />

<br />

<br />

The mediodorsal thalamic nucleus (MD) receives inputs from a wide variety of<br />

subcortical structures, such as the amygdala, basal forebrain and brain stem, and<br />

projects its axons to the prefrontal cortex. The MD have been considered to play<br />

important roles in learning, working memory, emotion, and behavioral control.<br />

In the present study, we investigated dendritic and axonal arborizations of single<br />

MD neurons in rats using Sindbis viral vectors expressing membrane-targeted<br />

green or monomeric red fluorescent protein. Single MD neurons infected with<br />

the viral vectors were completely visualized by immunoperoxidase staining for<br />

fluorescent protein, and reconstructed. When the axons exited from the thalamus,<br />

the reconstructed MD neurons always emitted axon collaterals to the thalamic<br />

reticular nucleus. Two of the 6 reconstructed MD neurons formed abundant axon<br />

bush in the neostriatum. In the cerebral cortex, the MD neurons sent axon fibers<br />

mainly to middle layers of the orbital, prelimbic, cingulate and frontal association<br />

areas. Thus, MD neurons would be classified into core thalamic neurons according<br />

to Jones (1998, 2001).<br />

OEPMI<br />

V <br />

Stefan Trifonov <br />

<br />

Calbindin D28K<br />

Calbindinpoor compartment <br />

Calbindinpoor compartment <br />

<br />

Calbindinpoor compartment <br />

GAD1 mRNA Cannabinoid type 1 receptor<br />

CB1 mRNA in situ hybridization <br />

1 Calbindinpoor<br />

compartment Anterior, Middle, Posterior 3 <br />

2 GAD1 mRNA Middle region 3 CB1<br />

mRNA 3 4 Anterior region Posterior region<br />

<br />

Middle region V <br />

OEPMI<br />

<br />

<br />

<br />

<br />

D1 D2 D1RD2R<br />

<br />

D1R D2R in situ <br />

<br />

D1R<br />

mRNA D2R mRNA <br />

D1R D2R <br />

<br />

D2R <br />

<br />

<br />

<br />

<br />

D1R D2R <br />

<br />

<br />

<br />

<br />

OEPMI<br />

GABA <br />

<br />

<br />

<br />

PV GABA<br />

<br />

<br />

Correlated CLSMEM <br />

<br />

4 PV <br />

<br />

vGLuT2 <br />

driving input <br />

4 PV PV <br />

4 PV <br />

2/3 <br />

PV <br />

<br />

CA1 <br />

<br />

<br />

<br />

OEPMII<br />

BAF dpf GFP <br />

<br />

<br />

<br />

BAF 10 <br />

DNA <br />

BAF <br />

esBAFnpBAF<br />

nBAF ES <br />

<br />

<br />

zinc Dpf1 nBAF <br />

BAF45b <br />

Dpf1 <br />

<br />

tTAEGFP <br />

dpf1 <br />

dpf1tTAGFP 24 <br />

GFP 48 <br />

<br />

dpf1 GFP <br />

Dpf1 <br />

Dpf1 <br />

OEPMII<br />

mRNA <br />

1 2 2 1<br />

1<br />

2 <br />

<br />

<br />

<br />

<br />

<br />

<br />

mRNA <br />

<br />

<br />

<br />

<br />

mRNA <br />

<br />

<br />

RNA <br />

<br />

RNA <br />

mRNA

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