Fancy a liver that works a little harder? Synthetic DNA circuits inserted into human stem cells could soon allow us to build new organs with unprecedented precision and speed. The circuits can be designed on a computer and assembled from ready-made parts ordered online. The technique could prove an efficient way of making organs for transplant without the worry of rejection, and raises the tantalising possibility that it might one day be possible to upgrade the organs we were born with. Human cells have already been used to create a tiny liver and a set of neurons. "At the moment, the aim is to normalise cells, but in future, enhancement has to be on the menu," says Chris Mason, a professor of regenerative medicine at University College London, who wasn't involved in the work.
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机译：想要更努力一点的肝脏？插入人类干细胞的合成DNA电路很快将使我们能够以前所未有的精度和速度构建新器官。电路可在计算机上设计，并由在线订购的现成零件进行组装。该技术可以证明是一种有效的器官移植方法，而无需担心排斥反应，并增加了诱人的可能性，即有一天可能会升级我们出生的器官。人细胞已经被用来制造微小的肝脏和一组神经元。伦敦大学学院（University College London）再生医学教授，未参与这项工作的克里斯·梅森说：“目前的目标是使细胞正常化，但将来必须在菜单上进行增强。”
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