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KMID : 0894520100140020043
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Development & Reproduction
2010 Volume.14 No. 2 p.43 ~ p.50
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Current Progress and Prospects of Reprogramming Factors - Stem Cells vs Germ Cells
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Seo You-Mi
Lee Kyung-Ah
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Abstract
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Recently induced pluripotent stem (iPS) cells are derived from somatic cells by ectopic expression of several transcription factors (reprogramming factors) using technology of somatic cell reprogramming. iPS cells are able to selfrenew and differentiate into all type of cells in the body similarly to embryonic stem cells. Because iPS cells have advantages that can avoid immune rejection after transplantation and ethical issues unlike embryonic stem cells, research on iPS has made significant progress since the first report by Yamanaka in 2006. Nevertheless of many advantages of iPS, safer methods to introduce reprogramming factors into somatic cells must be developed due to safety concerns regarding viral vectors, and safer reprogramming factors to substitute the oncogenes should be evaluated for clinical application of iPS. Here we discuss the recent progress in reprogramming factors in embryonic stem cells, oocytes, and embryos, and discuss further research for finding new, more reliable and safer reprogramming factors.
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KEYWORD
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Reprogramming factor, Embryonic stem cell, Oocyte, Embryo
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