| Budget Amount *help |
¥24,960,000 (Direct Cost: ¥19,200,000、Indirect Cost: ¥5,760,000)
Fiscal Year 2019: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2018: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2017: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
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| Outline of Final Research Achievements |
Induced pluripotent stem cells (iPSCs)are expected to be useful for regenerative medicine such as drug screening and transplantation, which might particularly benefit older patients suffering from heart failure, diabetes and degenerative diseases. However, it is known that iPSCs isolated from aged somatic cells exhibit impaired genomic stability. In this study, we show that the Zygotic Genome Activation (ZGA) gene Zscan5b expressed from early embryonic development through the establishment process of embryonic stem cells (ESCs) and is involved in the genomic stability of ESCs. These results provide a new concept that loss of function of genes expressed in the early embryogenesis can lead to the loss of genomic stability of somatic and ES cells, resulting in random chromosomal aberrations. The findings would contribute to improve genomic stability of embryos and pluripotent stem cells, leading to the development of assisted reproduction technology and regenerative medicine.
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