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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 143 - 160 (18page)
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Characteristics of induced pluripotent stem (iPS) cells are consistent with those of embryonic stem (ES) cells. However, exogenous genes integrated by using retrovirus delivery systems cannot be completely removed from the cells. In a recent report, activation-induced cytosine deaminase (AID) and thymine DNA glycosylase (TDG) can induce pluripotency state in mouse differentiated cells through the process of DNA demethylation. Thus, we hypothesized that the two reprogramming factors may convert efficiently bovine differentiated cells into pluripotency state. So, genes of AID and TDG were integrated into pCMV6-AC-IRES-GFP-Puro expression vector, which was transfected into bovine differentiated cells. As results, the colonies derived from AID+TDG-induced bovine cells were formed on day 7 after culture. The number of AP positively colonies in AID+TDG-induced bovine cells was significantly higher than in AID-induced bovine cells (p<0.05). Additionally, expression of pluripotent genes (OCT-3/4, NANOG, SOX2) was slightly increased in AID+TDG-induced bovine cells, as compared to AID-induced bovine cells. Protein expressions of OCT-3/4, NANOG and SOX2 in AID+TDG-induced bovine cells were slightly increased rather than AID-induced bovine cells. Finally, DNA demethylation in the promoter regions of pluripotent markers in AID+TDG-induced bovine cells was increased than that of AID-induced bovine cells. In conclusion, pluripotent stem cells could be efficiently produced from bovine differentiated cells by using non-integrating delivery system with the reprogramming factors (AID and TDG)
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참고문헌 (26)
참고문헌 신청
[학술지(정기간행물)] -
Bhutani, N. / 2010 / Reprogramming towards pluripotency requires AID-dependent DNA demethylation / Nature 463 : 1042 ~ 1048
Bird, A. / 2002 / DNA methylation patterns and epigenetic memory / Genes Dev 16 : 6 ~ 21
Campbell, K. H. S. / 1996 / Sheep cloned by nuclear transfer from a cultured cell line / Nature 380 : 64 ~ 66
Carlson, L. L. / 1992 / Properties and localization of DNA methyl-transferase in preimplantation mouse embryos: implications for genomic imprinting / Genes Dev 6 : 2536 ~ 254
Bhutani, N. / 2010 / Reprogramming towards pluripotency requires AID-dependent DNA demethylation / Nature 463 : 1042 ~ 1048
Bird, A. / 2002 / DNA methylation patterns and epigenetic memory / Genes Dev 16 : 6 ~ 21
Campbell, K. H. S. / 1996 / Sheep cloned by nuclear transfer from a cultured cell line / Nature 380 : 64 ~ 66
Carlson, L. L. / 1992 / Properties and localization of DNA methyl-transferase in preimplantation mouse embryos: implications for genomic imprinting / Genes Dev 6 : 2536 ~ 254
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