ObjectiveTo investigate the therapeutic effect and the mechanism of photodynamic therapy (PDT) on human pancreatic cancer xenograft in nude mice.

• 目的研究光动力疗法 (photodynamictherapy ,PDT)对裸鼠胰腺移植癌的治疗效果及血管损伤在其中的作用 ,为临床应用PDT治疗胰腺癌提供依据。