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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 ...

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117 141<br />

P<br />

kirrel <br />

<br />

1 1 1 1 2 <br />

1<br />

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<br />

A member of the immunoglobulin superfamily, kirrel3, is expressed in the dorsal<br />

root ganglia DRGs. In the previous report, we have suggested that kirrel3<br />

may play a role in the development of tyrosine kinase receptor Trk Cpositive<br />

neurons. To get further insights into the function of kirrel3 in the DRG neurons,<br />

we characterized kirrel3expressing neurons in the DRGs of kirrel3lacZ Z knockin<br />

mice. In the lumber DRG neurons, the expression of βgalactosidase βgal<br />

was first observed at embryonic day 12.5, gradually increased, and reached<br />

the maximum level at postnatal day P 7. During embryonic stages, βgal was<br />

predominantly expressed in TrkA and TrkCpositive neurons, while some βgal<br />

positive neurons contained TrkB or Ret. The expression of Ret was increased in<br />

βgalpositive neurons between P7 and P14, and was observed in approximately<br />

43% of βgalpositive neurons of the adult DRGs. These results suggest that<br />

kirrel3 may be involved in the development of nociceptive and mechanoceptive<br />

neurons in addition to proprioceptive neurons.<br />

This work was supported by a GrantinAid for Scientific Research B from<br />

Japan Society for the Promotion of Science 22390036.<br />

P<br />

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BMP4 FGF2 <br />

<br />

Dlx5Six1Eya2 PCR Dlx5 <br />

10 <br />

GATA3/keratin19 Slug <br />

Sox2 FGF2<br />

FGF8 <br />

BMP4 FGF2 <br />

<br />

P<br />

/ <br />

Sprouty<br />

1,2 2 3 2<br />

1<br />

2 <br />

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in vitro <br />

bFGF <br />

Receptor tyrosine kinase RTK <br />

Sprouty 4 Sprouty<br />

in situ hybridization <br />

<br />

Sprouty4 Sprouty4 <br />

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Sprouty4 <br />

<br />

Sprouty4 <br />

Sprouty4 <br />

<br />

<br />

P<br />

<br />

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<br />

4 Oct3/4Sox2Klf4cMyc <br />

induced pluripotent stem cell<br />

iPS <br />

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iPS <br />

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P<br />

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1 2 3 2<br />

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Dlg <br />

1 1 2<br />

1<br />

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3 16 Hox11Tcf21<br />

WT1Barx1Nkx3.2<br />

mesothelium<br />

<br />

<br />

Fgf16 FGF receptor12 <br />

mesothelium<br />

Fgf16 FGF receptor12 <br />

<br />

<br />

<br />

Dlg1 MAGUK <br />

Dlg1 Dlg1 -/- <br />

<br />

Dlg1 <br />

Dlg1 -/- <br />

Dlg1 <br />

2010 Wnt Fzd1 <br />

2 Dlg1 -/- <br />

Fzd1 -/- Fzd2 -/- <br />

Dlg1 -/- <br />

<br />

Fzd1 -/- Fzd2 -/- <br />

Dlg1 -/- <br />

Notch <br />

Notch <br />

<br />

Dlg1 -/- <br />

Dlg1 Notch

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