そういうことだ。記事は続く。
The 129 strain was briefly mentioned, in both the first Nature paper, and the March 5 revised protocol of Riken’s Hitoshi Niwa (another respected stem cell scientist and co-author). In both, it was noted “reproducible establishment” of STAP cells occurred with B6, F1, and 129. “STAP stem cells with all these genetic backgrounds formed chimaera-forming activity,” both read.