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世界第一窝小猪的克隆成功,使人类从猪身亡成功获取移植器官的希望又多了几成。三月份,苏格兰的 PPL 治疗研究公司(是曾成功克隆多利羊的那家研究所的分公司)宣布他们和用成年猪细胞克隆出了五头小猪。虽然此前科学家已成功克隆出了奶牛和山羊,但是猪才是器官移植学研究的重点,因为猪在生理上更接近于人类。通过克隆技术结合遗传工程技术,科学家们希望能培育出新的猪种群,其器官移植到人体后,不会引起排斥反应。PPL 克隆目前这批小猪时并没有结合遗传工程技术,但是他们已经开始在实验室里培育猪细胞,而且已经成功地去除了其中可能引起排斥反应的基因,接下来要做的就是除去其它
The success of the cloning of the world’s first litter of piglets has added even more hope to the success of humans in obtaining transplanted organs from pigs. In March, Scotland’s PPL Therapeutics Research, a division of the institute that successfully cloned the Dolly Sheep, announced that they had cloned five piglets from adult pig cells. Although scientists have successfully cloned dairy cows and goats, pigs are the focus of organ transplantation research because pigs are physiologically closer to humans. By combining cloning with genetic engineering, scientists hope to breed new pig populations that do not cause rejection after their organs have been transplanted into the body. PPL clones do not currently incorporate genetic engineering in these piglets, but they have begun to breed porcine cells in the laboratory and have succeeded in removing genes in which they may cause rejection. The next step is to remove the other