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- W2101317128 abstract "This paper describes the impact of different concentrations of single-walled carbon nanotubes (SWCNTs) on cell viability of breast adenocarcinoma, MCF-7 line, and formation of multicellular tumor spheroids (MTS). Chemical composition and purity of nanotubes is controlled by Fourier transform infrared spectroscopy. The strength and direction of the influence of SWCNTs on the tumor cell population was assessed by cell counting and measurement of the volume of multicellular tumor spheroids. Effect of SWCNTs on the formation of multicellular spheroids was compared with the results obtained by culturing tumor cells with ultra dispersed diamonds (UDDs). Our results demonstrated that SWCNTs at concentrations ranging from 12.5 to 50 μg/ml did not have cytotoxic influence on tumor cells; instead, they had weak cytostatic effect. The increasing of SWCNTs concentration to 100 to 200 μg/ml stimulated proliferation of tumor cells, especially in suspension fractions. The result of this influence was in formation of more MTS in cell culture with SWCNTs compared with UDDs and control samples. In result, the median volume of MTS after cultivation with SWCNTs at 100 to 200 μg/ml concentrations is 3 to 5 times greater than that in samples which were incubated with the UDDs and is 2.5 times greater than that in control cultures. So, if SWCNTs reduced cell adhesion to substrate and stimulated formation of tumor cell aggregates volume near 7 · 10(-3) mm(3), at the same time, UDDs reduced adhesion and cohesive ability of cells and stimulated generation of cell spheroids volume no more than 4 · 10(-3) mm(3). Our results could be useful for the control of cell growth in three-dimensional culture.61. 46 + w; 61.48 + c; 61.48De; 87.15-v; 87.64-t." @default.
- W2101317128 created "2016-06-24" @default.
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- W2101317128 date "2015-03-27" @default.
- W2101317128 modified "2023-10-16" @default.
- W2101317128 title "Effect of single-walled carbon nanotubes on tumor cells viability and formation of multicellular tumor spheroids" @default.
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- W2101317128 doi "https://doi.org/10.1186/s11671-015-0858-7" @default.
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