何度でも貼り付けるわ。
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However, as Fgf4-induced stem cells lay between STAP stem cells and trophoblast stem cells in the dendrogram, the possibility of contamination of STAP stem cells in the Fgf4-induced stem-cell population cannot be ruled out. Previous studies have indicated that inner cell mass (ICM)-type pluripotent cells can be removed from culture by treating the culture with a JAK inhibitor <16>(Extended Data Fig. 5a, b). In contrast, the JAK inhibitor treatment had no substantial effect on Oct4-GFP expression in Fgf4-induced stem-cell culture (Extended Data Fig. 5c, d; see Extended Data Fig. 5e, f for control). Expression of neither pluripotency markers (Fig. 2j) nor trophoblast markers (Fig. 2k) was substantially affected, indicating that pluripotency marker expression is unlikely to reflect contaminating STAP stem cells (ICM-type). Consistent with this idea, Fgf4-induced stem cells that were strongly positive for the trophoblast marker Itga7 (a surface marker for trophoblasts but not ES cells) also expressed high levels of Oct4-GFP (Extended Data Fig. 5g).
STAP幹細胞のコンタミと書いてあるよな。ESのコンタミだとは書いてないね。
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However, as Fgf4-induced stem cells lay between STAP stem cells and trophoblast stem cells in the dendrogram, the possibility of contamination of STAP stem cells in the Fgf4-induced stem-cell population cannot be ruled out.
しかしながら、Fgf4誘導幹細胞は、樹状図においてSTAP幹細胞と栄養膜幹細胞との間に位置しているので、Fgf4誘導幹細胞集団におけるSTAP幹細胞の混入の可能性を排除できない。
(Extended Data Fig. 5a, b)はOct4-GFP挿入ESの培地にJAKiを添加した実験だね。
結果は添加後GFP蛍光が消える。つまり多能性を失う。先行する論文の論旨に従えば、
多能性を維持していたJAK(ヤーヌスキナーゼ)が分解されて細胞が分化段階に
入ったということだね。
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Previous studies have indicated that inner cell mass (ICM)-type pluripotent cells can be removed from culture by treating the culture with a JAK inhibitor <16>(Extended Data Fig. 5a, b).
先行する研究では、内部細胞塊（ICM)タイプの多能性細胞は、JAK阻害剤で培養を処理することにより培養物から除去することができることを示した（拡張データ図5a,b）。
