特許化された論文の中で使われた細胞だということね。このntESは若山夫人の作った別の論文のものとも違うよね。明確に出典が示されている。
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The 129B6F1G1 [13] and BDmt2 [14] are nuclear transfer-derived ES (ntES) cell lines [15] previously established in our laboratory using Sertoli cells of 129B6F1 background with GFP and tail-tip cells of a male BDF1 mouse as donor for nuclear transfer, respectively.
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13.Ohta H, Wakayama T. Generation of normal progeny by intracytoplasmic sperm injection following grafting of testicular tissue from cloned mice that died postnatally. Biol Reprod 2005; 73:390–395.
