| Project/Area Number |
23390404
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Ophthalmology
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| Research Institution | Kyoto Prefectural University of Medicine |
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Principal Investigator |
KINOSHITA Shigeru 京都府立医科大学, 医学(系)研究科(研究院), 教授 (30116024)
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| Co-Investigator(Kenkyū-buntansha) |
UENO Morio 京都府立医科大学, 医学研究科, 助教 (40426531)
KAWASAKI Satoshi 大阪大学, 医学研究科, 講師 (60347458)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2011: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
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| Keywords | 角膜上皮 / 転写因子 / ダイレクトリプログラミング / コア転写因子 / マスターレギュレーター / 角膜上皮細胞 / コア因子 / 形質転換 / エピゲノム |
|---|
| Research Abstract |
We attempted to identify master transcription factors (TFs) in corneal epithelial cells (CECs) which are able to maintain the cell-type specific transcriptional profile. First, we used microarray analysis to select candidate master TFs in CECs from all the genes, which were highly expressed in CECs compared to various other cells. In order to narrow down the master TFs in CECs, iPS interference screening was performed and produced 20 candidate TFs. A particular combination of candidate TFs was able to induce CEC-like cells expressing keratin 12, which is a corneal specific marker when overexpressed in a heterologous cell type. Furthermore, the expression level of other corneal-related genes, such as keratin 3, keratin 15, aldehyde dehydrogenase 3, transketolase, and E-cadherin were upregulated in the induced cells. These results suggested that defined TFs, which enabled the induction of CECs, contributed to the maintenance of the corneal-specific transcriptional profile.
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