- 著者
- Yoko Takata Hiroe Kishine Takefumi Sone Taichi Andoh Masami Nozaki Michael Poderycki Jonathan D. Chesnut Fumio Imamoto
- 出版者
- Japan Society for Cell Biology
- 雑誌
- Cell Structure and Function (ISSN:03867196)
- 巻号頁・発行日
- vol.36, no.2, pp.209-222, 2011 (Released:2011-11-17)
- 参考文献数
- 56
- 被引用文献数
- 16 19
Generation of iPS cells from mouse embryonic fibroblasts (MEF) was achieved using a BacMam transduction system containing a polycistronic plasmid expression vector for coincident and optimized expression of four defined reprogramming transcription factors. The sequences for Oct4, Klf4, Sox2 and c-Myc, were cloned as a fusion gene (OKSM) in a single open reading frame (ORF) via self-cleaving 2A peptides and expressed under the control of the CAG promoter. The transduction efficiency of primary MEF cells with BacMam particles carrying CAG-directed Venus reporter gene is 64–98%. After three successive transductions (at intervals of 3 days) of MEF cells with BacMam particles carrying a OKSM or OSKM cassette, the iPS cell colonies are observed in 15–24 days. A single transduction of MEF cells is also effective in generating sufficiently reprogrammed iPS cell lines. The iPS cell lines from colonies picked were positively stained by Nanog, SSEA-1 immunofluorescence and alkaline phosphatase substrate markers. The advantage of using the EOS-S(4+)-EmGFP reporter to identify sufficiently reprogrammed iPS cell lines is discussed by representing experimental results obtained with electroporated plasmids, such as a mixture of 2 tandem OS and KM plasmids and a polycistronic OKSM expression plasmid.
- 著者
- Yoko Takata Hiroe Kishine Takefumi Sone Taichi Andoh Masami Nozaki Michael Poderycki Jonathan D. Chesnut Fumio Imamoto
- 出版者
- Japan Society for Cell Biology
- 雑誌
- Cell Structure and Function (ISSN:03867196)
- 巻号頁・発行日
- pp.1109300086, (Released:2011-10-06)
- 被引用文献数
- 16 19
Generation of iPS cells from mouse embryonic fibroblasts (MEF) was achieved using a BacMam transduction system containing a polycistronic plasmid expression vector for coincident and optimized expression of four defined reprogramming transcription factors. The sequences for Oct4, Klf4, Sox2 and c-Myc, were cloned as a fusion gene (OKSM) in a single open reading frame (ORF) via self-cleaving 2A peptides and expressed under the control of the CAG promoter. The transduction efficiency of primary MEF cells with BacMam particles carrying CAG-directed Venus reporter gene is 64-98 %. After three successive transductions (at intervals of 3 days) of MEF cells with BacMam particles carrying a OKSM or OSKM cassette, the iPS cell colonies are observed in 15-24 days. A single transduction of MEF cells is also effective in generating sufficiently reprogrammed iPS cell lines. The iPS cell lines from colonies picked were positively stained by Nanog, SSEA-1 immunofluorescence and alkaline phosphatase substrate markers. The advantage of using the EOS-S(4+)-EmGFP reporter to identify sufficiently reprogrammed iPS cell lines is discussed by representing experimental results obtained with electroporated plasmids, such as a mixture of 2 tandem OS and KM plasmids and a polycistronic OKSM expression plasmid.