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Distribution of photosensitizers between tumor cells and tumor infiltrating host cells

机译:光敏剂在肿瘤细胞和肿瘤浸润宿主细胞之间的分布

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Abstract: Photofrin levels in different cellular populations constituting a murine FsaR fibrosarcoma were measured by flow cytometry. Both myeloid and lymphoid populations associated with the tumor were found to accumulate more photosensitizer on a per cell basis, on average, than the malignant cells. Macrophages, identified by the F4/80 antigen, exceeded other myeloid cells in Photofrin accumulation. It is shown that one of the factors involved is the variability in the photosensitizer content in cells located at different distances from the nearest blood vessel. This was investigated by a flow cytometry technique with the fluorescent stain Hoechst 33342, used to distinguish cells depending on their proximity to the tumor vasculature. !14
机译:摘要:通过流式细胞仪测量了组成鼠FsaR纤维肉瘤的不同细胞群中的光合蛋白水平。发现与肿瘤相关的髓样和淋巴样群体在每个细胞的基础上平均比恶性细胞积累更多的光敏剂。由F4 / 80抗原鉴定的巨噬细胞超过了Photofrin积累中的其他髓样细胞。结果表明,所涉及的因素之一是距最近血管不同距离的细胞中光敏剂含量的变化。通过流式细胞术技术对荧光染色的Hoechst 33342进行了研究,该染色用于根据细胞与肿瘤脉管系统的接近程度来区分细胞。 !14

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