光动力疗法(photodynami ctherapy,PDT)是指利用光敏剂和光产生的光动力学反应治疗肿瘤的一种保守疗法,历史悠久,最早可以追溯到三千多年前。直到19世纪,人们开始发现光动力具有治疗皮肤癌的作用;100年前,研究者观察到光联合某种化疗药物可以诱发组织损伤;21世纪60年代,Lipson等[1]报道非毒性血 Photodynamic therapy (PDT) is a conservative treatment of tumors by photodynamic therapy with photosensitizers and light and has a long history dating back more than 3000 years. Until the 19th century, people began to find the photodynamic effect of skin cancer treatment; 100 years ago, the researchers observed that light combined with a chemotherapeutic drug can induce tissue damage; the 1960s, Lipson et al [1] reported non-toxic blood