Paolo Macchiarini是一名外科医生。2008年,其首次在一名巴塞罗那的年轻女子Claudia Castillo身上创造了"奇迹"。他采集到已故供者的气管,并通过化学的方法去除了供体气管内的细胞; 并向残留的气管支架中接种从Claudia自己的骨髓中提取的干细胞。根据Macchiarini 的理论,Claudia的干细胞能够发育分化成正常的气管组织,如此,她便不需要使用任何有风险的免疫抑制药物,另外Macchiarini认为Claudia自己的细胞也可以很好地找到自己应该发挥作用的器官。
当时无数的新闻报道了这个气管干细胞移植案例,例如,在NBC纪录片"信仰的飞跃"(Leap of Faith)中,称这个案例是医学的突破和信仰的飞跃,"想象一个世界,任何受伤或患病的器官或身体部位都被一个新的人造器官替代。Macchiarini也被称为"再生医学的先驱"、"超级明星外科医生"、"创造奇迹的再生医学科学家",他的工作被誉为将再生医学领域的梦想变成现实。
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