英国研究人员首次用3D打印机打印出胚胎干细胞,干细胞鲜活且保有发展为其他类型细胞的能力。这一方法意味着病入膏肓的病人可轻易地获得肝脏、心脏和其他器官,并能解决器官移植中的免疫抑制等问题。科学家已用这种方法培育出骨髓和皮肤,但他们在努力研究可能变成一种新器官的胚胎细胞结构。研究人员在实验中制造多层人类胚胎干细胞,并准确 For the first time, British researchers have printed embryonic stem cells in 3D printers, where stem cells are fresh and retain the ability to develop into other types of cells. This approach means that patients who are afflicted can easily gain access to the liver, heart and other organs and can solve problems such as immunosuppression in organ transplantation. Scientists have used this method to breed bone marrow and skin, but they are struggling to study the cell structure of embryos that may turn into a new organ. Researchers in the experiment to create multi-layer human embryonic stem cells, and accurate