Authors
Masato Nakagawa, Michiyo Koyanagi, Koji Tanabe, Kazutoshi Takahashi, Tomoko Ichisaka, Takashi Aoi, Keisuke Okita, Yuji Mochiduki, Nanako Takizawa, Shinya Yamanaka
Publication date
2008/1
Journal
Nature biotechnology
Volume
26
Issue
1
Pages
101-106
Publisher
Nature Publishing Group US
Description
Direct reprogramming of somatic cells provides an opportunity to generate patient- or disease-specific pluripotent stem cells. Such induced pluripotent stem (iPS) cells were generated from mouse fibroblasts by retroviral transduction of four transcription factors: Oct3/4, Sox2, Klf4 and c-Myc. Mouse iPS cells are indistinguishable from embryonic stem (ES) cells in many respects and produce germline-competent chimeras,,. Reactivation of the c-Myc retrovirus, however, increases tumorigenicity in the chimeras and progeny mice, hindering clinical applications. Here we describe a modified protocol for the generation of iPS cells that does not require the Myc retrovirus. With this protocol, we obtained significantly fewer non-iPS background cells, and the iPS cells generated were consistently of high quality. Mice derived from Myc− iPS cells did not develop tumors during the study period. The protocol also enabled efficient …
Total citations
Scholar articles
M Nakagawa, M Koyanagi, K Tanabe, K Takahashi… - Nature biotechnology, 2008