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162<br />
117 <br />
P<br />
<br />
<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 />
<br />
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 />
1 2 1<br />
1<br />
2 <br />
<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 />
<br />
<br />
<br />
<br />
ICC<br />
ICC <br />
cKIT <br />
<br />
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 />
<br />
<br />
<br />
<br />
ICCSP <br />
<br />
<br />
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 />
<br />
<br />
CCK1 <br />
CCK