Mechanistic study for the hemophagocytosis-like condition during the induction of hematopoietic cells from human pluripotent stem cells
| Project/Area Number |
22591053
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Hematology
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| Research Institution | Research Institute, International Medical Center of Japan |
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Principal Investigator |
SAEKI Kumiko 独立行政法人国立国際医療研究センター, 疾患制御研究部, 室長 (80322717)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| 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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | ヒトiPS細胞 / 血球貪食 / マクロファージ / インターフェロン / ヒトES細胞 / マクロフージ |
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| Research Abstract |
By using neutrophil-inducing differentiation culture system of human embryonic stem (ES) cells, we observed macrophage-dominant induction of human induced pluripotent stem (iPS) cells. During the early phase of differentiation of human iPS cells, we observed neutrophil-progenitors and the phagocytosis of these progenitors by macrophage, suggesting that our iPS system represent in vitro model of hemophagocytosis known in human diseases. In the present study, we performed molecular analysis of this in vitro model of hemophagocytosis. We observed expression of IFNα1 、IFNα2 、IFNβ1 during the differentiation of all four iPS cell lines and one of three ES cell lines. However, we observed neutrophil-dominant differentiation of human iPS cells under the low cell density culture condition and macrophage-dominant differentiation of human ES cells in certain ES cell lines. Thus, we were not able to clarify the relationship between ES versus iPS cells and neutrophil versus macrophage induction in our differentiation inducing culture system in this study.
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Report
(4 results)
Research Products
(8 results)
