Analysis of retinotectal projection and tectal layer formation
Project/Area Number |
22570199
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Developmental biology
|
Research Institution | Tohoku University |
Principal Investigator |
|
Project Period (FY) |
2010 – 2012
|
Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
Keywords | 網膜視蓋投射 / 視蓋層形成 / ニワトリ胚 / エレクトロポレーション / Engrailed / 視蓋 / 層形成 / Tet-on / En2 / スライスカルチャー / 動画 / 層構築 / Er81 |
Research Abstract |
In this study, we have shown that some part of the optic fibers run deep layers of the tectum from the first. These fibers are transient and disappear after birth. En2 is expressed in laminae g-j of SGFS in tecta of around E10. Misexpression of En2 showed that En2 expressing cells cannot stay in the superficial layers of the tectum. Time lapse analysis showed that En2 expressing cells went out of the superficial layer and settled in lamina i. The results indicate that En2 plays crucial roles in tectal layer formation. We found that layer IV, and V are composed of cells that have migrated tangentially, and that neuropilin1 is expressed in layer IV, V cells and sema3A is expressed in layer VI cells. Sema3A overexpression resulted in abnormal layer formation of the tectum. The results indicate that neuropilin-Semaphorin repulsive system plays crucial roles in tectal layer formation.
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Report
(4 results)
Research Products
(61 results)
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[Journal Article] Coactosin accelerates cell dynamism by promoting actin polymerization2013
Author(s)
Hou, X., Katahira, T., Ohashi, K., Mizuno, K., Sugiyama, S., Nakamura, H.
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Journal Title
Dev Biol
Volume: 379
Issue: 1
Pages: 53-63
DOI
Related Report
Peer Reviewed
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[Journal Article] Optogenetic Probing and Manipulation of the Calyx-Type Presynaptic Terminal in the Embryonic Chick Ciliary Ganglion.2013
Author(s)
Egawa, R., Hososhima, S., Hou, X., Katow, H, S., Ishizuka, T. Nakamura, H., and Yawo, H.
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Journal Title
PLoS ONE
Volume: 8
Issue: 3
Pages: e59179-e59179
DOI
Related Report
Peer Reviewed
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[Journal Article] Otx2 is involved in the regional specification of the developing retinal pigment epithelium by preventing the expression of sox2 and fgf8, factors that induce neural retina differentiation2012
Author(s)
Daisuke Nishihara, Ichiro Yajima, Hiromasa Tabata, Masato Nakai, Nagaharu Tsukiji, Tatsuya Katahira, Kazuhisa Takeda, Shigeki Shibahara, Harukazu Nakamura, Hiroaki Yamamoto
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Journal Title
PLoS One
Volume: e48879
Issue: 11
Pages: e48879-e48879
DOI
Related Report
Peer Reviewed
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[Journal Article] Conditional knockdown of target gene expression by tetracycline regulated transcription of double strand RNA2011
Author(s)
Hou, X., Omi, M., Harada, H., Ishii, S., Takahashi, Y., Nakamura, H.
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Journal Title
Dev Growth Differ
Volume: 53
Issue: 1
Pages: 69-75
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Conditional knockdown of target gene expression by tetracycline regulated transcription of double strand RNA2011
Author(s)
Hou, X., Omi, M., Harada, H., Ishii, S., Takahashi, Y., Nakamura, H.
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Journal Title
Dev.Growth Differ
Volume: 53
Pages: 69-75
NAID
Related Report
Peer Reviewed
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[Journal Article] Gene manipulation of chick embryos in vitro, EC culture, and long survival in transplanted eggs2010
Author(s)
Tanaka, J., Harada, H., Ito, K., Ogura, T., Nakamura, H.
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Journal Title
Dev Growth Differ
Volume: 52
Issue: 7
Pages: 629-634
DOI
Related Report
Peer Reviewed
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[Journal Article] Gene manipulation of chick embryos in vitro, EC culture, and long survival in transplanted eggs2010
Author(s)
Tanaka, J., Harada, H., Ito, K., Ogura, T., Nakamura, H.
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Journal Title
Dev.Growth Differ.
Volume: 52
Pages: 629-634
Related Report
Peer Reviewed
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[Presentation] Conditional knockdown of target gene expression: Tet-on of transcription of double strand RNA. Chick 7: Avian Model Systems2012
Author(s)
Hou, X., Omi, M., Harada, H., Ishii, S., Takahashi, Y., Nakamura, H.
Organizer
7th International Chick Meeting
Place of Presentation
Nagoya
Related Report
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[Presentation] Conditional knockdown of target gene expression: Tet-on of transcription of double strand RNA.2012
Author(s)
Hou, X., Omi, M., Harada, H., Ishii, S., Takahashi, Y., Nakamura, H.
Organizer
Chick 7: Avian Model Systems, 7th International Chick Meeting.
Place of Presentation
名古屋
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