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Growth Kinetics of 2- and 3-D Cell Models as Influenced by the Microenvironment

机译:受微环境影响的2-D和3-D细胞模型的生长动力学

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摘要

The noncontact cocultivation system was developed for the study of the paracrine interactions between MCF-7 (breast carcinoma cells) and MT-4 (a line of human T-cell leukemia). Viability and proliferation rates were determined in the adhesion and suspension fractions of MCF-7 cells sampled from two model systems: monolayer culture and multicellular tumor spheroids (MTS). Cocultivation with MT-4 reduced the number of MCF-7 cells in the adhesion fraction and had no effect upon the suspension fraction, despite an increase in the total population of MCF-7 cells. The two model systems displayed a substantial difference in cell viability, alone and in the presence of MT-4 cells - the fraction of viable cells in the monolayers was greater than in the spheroids. It is suggested that cocultivation with MT-4 stimulates proliferation of MCF-7 cells via a paracrine mechanism, reduces adhesion to the substrate, and leads to MTS formation.
机译:开发了非接触式共培养系统,用于研究MCF-7(乳腺癌细胞)和MT-4(人类T细胞白血病细胞系)之间的旁分泌相互作用。测定了从两个模型系统(单层培养和多细胞肿瘤球体(MTS))采样的MCF-7细胞的黏附和悬浮液分数的存活率和增殖率。与MT-4共培养可减少粘附分数中的MCF-7细胞数量,并且对悬浮分数没有影响,尽管MCF-7细胞的总种群有所增加。两种模型系统在单独和存在MT-4细胞的情况下均显示出细胞存活率的显着差异-单层中活细胞的比例大于球状体。建议与MT-4共培养通过旁分泌机制刺激MCF-7细胞增殖,减少与底物的粘附,并导致MTS形成。

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  • 来源
    《Cytology and genetics》 |2009年第5期|305-310|共6页
  • 作者单位

    Biological Faculty, Taras Shevchenko National University of Kiev, National Academy of Sciences, Ukraine;

    Department of Biotechnical Problems of Diagnostic, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences, Ukraine;

    Department of Biotechnical Problems of Diagnostic, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences, Ukraine;

    Biological Faculty, Taras Shevchenko National University of Kiev, National Academy of Sciences, Ukraine;

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