| Project/Area Number |
24659388
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Circulatory organs internal medicine
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| Research Institution | Ritsumeikan University (2013)
Kyoto University (2012) |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 再生医学 / 幹細胞生物学 / 人工受容体 / 体細胞初期化 |
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| Research Abstract |
Signal transduction from Wnt ligands or Granulocyte Colony Stimulating factor (G-CSF) links to pathways involved in myocardial cell differentiation or cell survival from external stress stimuli. To control these signals in pluripotent stem cells is expected to improve the efficiency for cell survival after implantation as well as for myocardial cell induction. Then, we attempted to generate small molecule-responsive artificial receptors that can activate signal pathways, in the absence of Wnt3a or G-CSF. In the present research project, we constructed chimeric receptors in which single-chain Fv of anti-fluorescein (FL) antibody was tethered to transmembrane/cytoplasmic domains of the receptor for Wnt3a or G-CSF. Mouse ES cells or iPS cells transduced with these chimeric receptors are able to activate the signals in response to FL-conjugated BSA (BSA-FL) as a cognate ligand, and show increased efficiency for myocardial cell differentiation when they are stimulated with BSA-FL.
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