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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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162<br />

117 <br />

P<br />

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<br />

<br />

IVCT FS <br />

IgA Ig <br />

<br />

-193 IVCT<br />

2% PFA <br />

FS <br />

2%PFA 2%PFA -<br />

- PFDH <br />

- HE IgA <br />

IgG1 Ig κ Lκ IgM IVCT<br />

HE <br />

IgA IgLκ <br />

IgG1 IgM <br />

IgG1 <br />

PFDH IgA <br />

IVCTFS <br />

<br />

P<br />

M Epidermal type FABP EFABP/FABP<br />

<br />

1 2 1<br />

1<br />

2 <br />

Fatty acid binding protein FABP <br />

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Epidermal type FABP EFABP/FABP5 <br />

M <br />

Histochem Cell Biol. vol.1326, 2009 M <br />

17 18 <br />

116 M <br />

16, 17, 18, 19 <br />

IgA IgA <br />

EFABP <br />

M EFABP <br />

EFABP <br />

<br />

galectin4 <br />

M EFABP galectin4 <br />

<br />

P<br />

A <br />

1 2 1 1 1 <br />

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<br />

Lampreys are ancestral representatives of vertebrates known as jawless fish. The<br />

Japanese lamprey, Lethenteron japonicum, is a parasitic member of the lampreys<br />

known to store large amounts of vitamin A within its body. How this storage is<br />

achieved, however, is wholly unknown. Within the body, the absorption, transfer<br />

and metabolism of vitamin A are regulated by a family of proteins called retinoid<br />

binding proteins. Here we have cloned a cDNA for cellular retinolbinding<br />

protein CRBP from the Japanese lamprey, and phylogenetic analysis suggests<br />

that lamprey CRBP is an ancestor of both CRBP I and II. The lamprey CRBP<br />

protein was expressed in bacteria and purified. Binding of the lamprey CRBP to<br />

retinol Kd of 13.2 nM was identified by fluorimetric titration. However, results<br />

obtained with the protein fluorescence quenching technique indicated that lamprey<br />

CRBP does not bind to retinal. Northern blot analysis showed that lamprey CRBP<br />

mRNA was ubiquitously expressed, although expression was most abundant in the<br />

intestine. Together, these results suggest that lamprey CRBP has an important role<br />

in absorbing vitamin A from the blood of host animals.<br />

P<br />

cKIT <br />

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ICC<br />

ICC <br />

cKIT <br />

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ICC <br />

αSMA cKIT <br />

αSMA E11.5 <br />

12 cKIT E11.5 <br />

E12.5 <br />

cKIT αSMA E13.5 cKIT<br />

αSMA E15.5 αSMA<br />

cKIT <br />

<br />

αSMA E18.5 <br />

E14.5 E16.5 αSMA <br />

cKIT <br />

αSMAcKIT <br />

<br />

P<br />

ICCSP <br />

<br />

<br />

<br />

Interstitial cells of Cajal: ICC <br />

<br />

Subserosa: SS ICC ICCSS <br />

Submucosal Plexus: SP ICC ICCSP <br />

ICCSP <br />

ICC <br />

<br />

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ICCSP <br />

<br />

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P<br />

CCK <br />

<br />

<br />

CCK<br />

CCK1<br />

CCK1 <br />

<br />

CCK1 <br />

in situ hybridization<br />

<br />

CCK1 <br />

<br />

CCK <br />

<br />

G <br />

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<br />

CCK1 <br />

CCK

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