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- W2902435900 abstract "Background. Current work is devoted to the study in vivo of concentration and selectivity of accumulation of infrared photosensitizer (PS) hydroxyaluminium tetra-3-phenylthiophthalocyanine in liposomal form in intramuscularly and subcutaneously transplanted mice tumor models in comparison to normal tissues. Objective: to study the level and selectivity of accumulation of hydroxyaluminium tetra-3-phenylthiophthalocyanine liposomal form on mice tumor models in order to optimize the transplantation approach and the starting of photodynamic treatment. Materials and methods. A range of transplantable mice tumors was used in the study: solid carcinoma Ehrlich (ELD) and solid sarcoma S-37, epidermoid Lewis lung carcinoma (LLC) and colon adenocarcinoma (AKATOL). For the assessment of concentration of PS in tissues was evaluated by fluorescence spectroscopy in vivo. Results. The optimum transplantation approaches were shown to be as follows. Solid carcinoma Ehrlich (ELD) provided the highest accumulation of PS when transplanted intramuscularly. Five hours after administration concentration of PS in tumor achieves more than 7 mg/kg, with selectivity in comparison to normal tissue 3 : 1. The maximum concentration of PS in sarcoma S-37 was observed with subcutaneous transplantation, achieving at 5 h after administration the value of 5.4 mg/kg with selectivity of accumulation 4.3: 1. Both LLC and AKATOL showed optimum results with intramuscular transplantation. Maximum concentration of PS in LLC was observed 5 h after administration, achieving 7.5 mg/kg with selectivity exceeding 4. Concentration of photosensitizer in AKATOL 7h post administration achieved 6.8 mg/kg with selectivity about 2. Conclusions. Liposomal form of PS with intravenous administration selectively accumulates in tumors. The obtained experimental data allows to recommend the method of listed tumors models transplantation for the studies of PS." @default.
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- W2902435900 date "2017-12-30" @default.
- W2902435900 modified "2023-10-16" @default.
- W2902435900 title "Study of level and selectivity of liposomal form of photosensitiser hydroxyaluminium tetra-3-phenylthiophthalocyanine accumulation on transplantable mice tumor models at different ways of transplantation" @default.
- W2902435900 doi "https://doi.org/10.17650/1726-9784-2017-16-4-74-79" @default.
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