那些粉红色的小点就是干细胞,而视频显示的正是肝芽生长的过程,并且这个肝芽可以进一步发育为,无论是外表还是功能都与肝脏类似的组织。
Takanori Takebe and Hideki Taniguchi of Yokohama City University, in Japan, who made thevideo, have created working human-liver tissue.
日本横滨市立大学的武部孝则和谷口英机拍摄了这段视频,这次他们培养出了具有功能性的人类肝脏组织。
Researchers have long dreamed that stem cells might be used to repair or replacedamaged tissue, an aspiration known as regenerative medicine.
研究人员长期以来都设想干细胞能够用来修复或替换受损组织,该研究领域则被冠名为再生医学。
Embryonic stem cells, in particular, are pluripotent, meaning they are able to become anyother type of cell.
多能的胚胎干细胞被再生医学家们寄予厚望,所谓多能就意味着这些干细胞可以分化出多种其他类型的细胞。
And it is now possible to induce pluripotency in cells that have not come from embryos, thuscircumventing the ethical minefield previously associated with obtaining them.
现在的技术已经可以在非胚胎细胞中诱导细胞的多能性,这样就可以绕过之前直接使用胚胎细胞时所引发的伦理争议。
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