首页> 外文会议>Conference on Optical Diagnostics of Living Cells Ⅴ, Jan 23-25, 2002, San Jose, USA >Imaging Photosensitizer Distribution and Pharmacology using Multiphoton Microscopy
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Imaging Photosensitizer Distribution and Pharmacology using Multiphoton Microscopy

机译:使用多光子显微镜成像光敏剂分布和药理学

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Multiphoton microscopy is a powerful tool for imaging sub-cellular distribution of luminescent compounds present in living cells. We have used this tool to study the distribution and pharmacology of photosensitizers in tissue and tissue culture. Murine hepatoma tumor cells dosed with a photosensitizer were briefly photoactivated, then imaged for periods up to several hours. Using the photosensitizer Rose Bengal with green light activation, nearly immediate photolytic release of lysosomal enzymes resulted in catastrophic cell destruction within 5-30 minutes. The magnitude and rapidity of this response is markedly different than that observed with other photosensitizer agents, and is consistent with in vivo studies illustrating that Rose Bengal is capable of causing extremely rapid destruction of treated tumors.
机译:多光子显微镜是一种用于对活细胞中存在的发光化合物进行亚细胞分布成像的强大工具。我们已经使用此工具来研究光敏剂在组织和组织培养物中的分布和药理作用。用光敏剂对小鼠肝癌肿瘤细胞进行短暂的光活化,然后成像长达数小时。使用具有绿光活化作用的光敏剂玫瑰红,溶酶体酶几乎立即光解性释放,导致5-30分钟内破坏性细胞。这种反应的幅度和速度与其他光敏剂所观察到的速度和速度明显不同,并且与体内研究一致,该研究表明玫瑰孟加拉能够引起极快地破坏治疗的肿瘤。

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