30.01.2015 Views

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 ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

160<br />

117 <br />

P<br />

<br />

1 1 1 2 1<br />

1<br />

2 <br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

/ +/+, +/,/+,/ 4 1 1<br />

30 10 <br />

CL TC <br />

<br />

+/+ /+ / <br />

2 <br />

<br />

<br />

<br />

<br />

P<br />

<br />

<br />

1 2 3 4<br />

1<br />

2 3 <br />

4 <br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

Softex <br />

<br />

<br />

<br />

90<br />

<br />

<br />

P<br />

Klotho <br />

1 1 1 2,3 4 <br />

1<br />

1<br />

2 <br />

3 4 <br />

<br />

<br />

klotho klotho/<br />

<br />

5 klotho/ <br />

von Kossa, van Geison I MGPαsmooth<br />

muscle actinα SMAALPENPP1 <br />

TEM MGP <br />

klotho/ α SMA <br />

MGP I <br />

<br />

ALP ENPP1 <br />

TEM <br />

MGP <br />

klotho/ <br />

<br />

<br />

<br />

P<br />

FAMA <br />

1 1 1 1 1 2 <br />

2 1<br />

1<br />

2 <br />

FAM20A is a member of family with sequence similarity 20 FAM20 which<br />

has three members FAM20A, FAM20B and FAM20C in mammals. We have<br />

reported a transgenic Tg mouse line the lineage 230 exhibiting growth disorder<br />

associated with a 58kb fragment deletion in chromosome 11E1 that encompasses<br />

part of the FAM20A gene. Recently, some studies have reported that patients<br />

with amelogenesis imperfecta caused by FAM20A mutation display several<br />

dental phenotypes including hypoplastic enamel, failure of tooth development<br />

and gingival hyperplasia. In the present study, we aimed to clarify how the loss of<br />

FAM20A protein influenced the development of mouse dental tissues. We have<br />

observed delayed tooth eruption in the homozygous mice of the lineage 230.<br />

Immunohistochemistry indicated that FAM20a protein was expressed in osteoid<br />

tissue and tooth germ of normal mice of the lineage 230, but was not expressed<br />

in homozygous mice of the lineage 230. The light microscopy demonstrated<br />

hypoplastic enamel and gingival hyperplasia in the homozygous mice of the<br />

lineage 230. In conclusion, this study revealed that the FAM20A protein played a<br />

critical role in enamel biomineralization.<br />

P<br />

GABA GABA <br />

1 2 2 2 3 <br />

3 4 1<br />

1<br />

2 <br />

3 4 <br />

<br />

<br />

<br />

GABA <br />

GAD <br />

GABA <br />

GABA GABA <br />

GABA <br />

<br />

OUMS27<br />

RTPCR GABA GABA <br />

<br />

RTPCR GABA GABAA <br />

α2α5β1 GABAB <br />

GABAB1 <br />

GABAB2 mRNA GABAB2 <br />

mRNA <br />

<br />

GABAB GABAB <br />

<br />

P<br />

Polypterus senegalus <br />

Oxydoras niger <br />

1 1 1 1 2 <br />

1<br />

1<br />

2 <br />

5 <br />

<br />

Polypterus senegalus Oxydoras niger <br />

<br />

SGCs <br />

<br />

<br />

<br />

SGCs <br />

SGCs <br />

<br />

50 μm <br />

100 μm <br />

SGCs <br />

<br />

SGCs <br />

SGCs <br />

SGCs

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!