To restore hearing, researchers still have to figure out how to produce millions of hair cells, prevent stem cells from forming tumors, and translate the work to human cells.
为了重建听力，科学家们还必须研究出如何大量生产毛细胞，如何避免干细胞形成肿瘤，以及如何应用于人类的细胞。
Embryonic stem cells, which replicate indefinitely in the culture dish, are capable of forming almost any tissue in the body.
胚胎干细胞，在培养基中不确定的复制，有能力形成身体几乎所有的组织。
By activating dormant embryonic molecular pathways stem cells were coaxed into forming new hair follicles.
通过激活休眠期的胚胎分子路径，干细胞被诱导参与新毛囊的形成。
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