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- W754012743 abstract "目的探讨肿瘤细胞对光动力的敏感度,同时为体外细胞培养的光动力实验研究选择最佳光剂量和最佳光密度提供实验依据。方法将人永生化食管上皮细胞系SHEE及其癌变细胞系SHEEC分别随机分成21组,接种24h贴壁后,在30μg/ml的光敏剂photofrin-Ⅱ溶液中孵育150min后,在15min内应用Diomed-630型激光仪给予25mW/cm2、50mW/cm2、100mW/cm23个功率密度分别照射10,20,30,50,100,150,200s,然后继续培养24h,应用缩胆囊胆素八肽（CCK-8）法检测两个细胞系的存活率。结果在photofrin-Ⅱ30μg/ml浓度条件下,相同功率密度的光动力疗法（PDT）对细胞系SHEE和SHEEC的抑制率无显著性差异;在photofrin-Ⅱ30μg/ml浓度条件下,随着光剂量的增加PDT对细胞系SHEE和SHEEC的抑制率呈增加趋势,达到2.5～3.0J/cm2后进入平台期。结论人永生化食管上皮细胞系SHEE及其癌变细胞系SHEEC对光动力的敏感度无显著性差异,提示肿瘤光动力治疗的靶向作用可能与肿瘤细胞对激光的敏感性无关。" @default.
- W754012743 created "2016-06-24" @default.
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- W754012743 date "2010-04-02" @default.
- W754012743 modified "2023-09-24" @default.
- W754012743 title "Photofrin-Diomed 630-PDT对人永生化食管上皮细胞系SHEE及其癌变细胞系SHEEC的抑制研究" @default.
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