成人干细胞不仅可以分化成其来源组织的细胞,还能分化成其它细胞。
In 2004 Jonathan Tilly of Harvard Medical School and his colleagues discovered stem cells inmouse ovaries.
2004年,哈弗医学院的Jonathan Tilly及其同事在老鼠卵巢里发现了干细胞。
Since then it has been shown thatthese ovarian stem cells can develop into eggs, be fertilised and produce perfectly healthymouse pups.
迄今已经证实,此类卵巢干细胞能够分化成为卵细胞,卵细胞在受精后还能发育成健康的鼠宝宝。
But researchers have been reluctant to believe that something similar might be possible inhumans.
但是研究者尚不能确信人类也存在类似机能。
Proving that this was indeed the case was tricky.
想要弄清真相有些困难。
Human ovarian tissueespecially from young, healthy donorsis not easy to come by.
人类卵巢组织很难找到,健康的年轻捐献者的组织更难寻觅。
Dr Tillys breakthrough came when he discovered that a former colleague, Yasushi Takaiof Saitama Medical University in Japan, had in his freezer healthy ovarian tissue from 30patients who had changed sex.
幸而Tilly博士发现他的前同事日本埼玉医科大学的Yasushi Takai在冰箱里存放了30个变性人不再需要的健康卵巢组织,取得了突破。
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