The two cell populations (CD133+ and CD133−) were then used to perform cell cycle analysis, growth analysis, sphere cluster formation assay, soft agar assay and side population detection.
Then, we conducted cDNA microarray analysis on spheres from ovarian A2780 cells, and from breast MCF7 and SUM159 cells, and found that molecular pathways underlying spheres from these cancer cell lines were similar to a large extent, suggesting that similar mechanisms are involved in the genesis of CSCs in both ovarian and breast cancer types.
Thus readers will encounter many references to, and, frequently, extended disquisitions on, such matters as Hamilton's Quaternions, Gibbsian vector analysis,Riemann spheres, Prandtl's discovery of the boundary layer, the Hilbert Pólya Conjecture, the Minkowskian space-time track, and Zermelo's Axiom of Choice.
(C ) qRT-PCR analysis of spheres infected with Ad-eGFP (black) or Ad-4TF (gray) followed by extended culture.
Please note that the following objects were not included in our analysis: (a) sphere S0 was excluded due to its very small size, (b) bottle C1 was not analyzed because we discovered that a large error was made in determination of its activity, and (c) sphere S1 was not analyzed because it was not visible in images reconstructed from scans with hot water.
For analysis of sphere formation, subconfluent cells were thoroughly dissociated with EDTA to prepare a single-cell suspension that was always visually verified.
Among the most popular are limited dilution analysis, and sphere-formation assay., Biochemical markers of TISCs, which can vary widely between tumor types and individual tumors are routinely used in experimental oncology applications.
Light microscopic analysis of SLGC spheres transduced with Evi shRNA versus control shRNA revealed strong morphological differences: Evi silenced spheres were significantly smaller and lost their packed condensed morphology compared to control spheres (Fig 4A and Fig S4 of Supporting information).
EDS analysis of these spheres illustrate and Ca- and P-rich signature, and upon higher magnification, reveal mineralized spheres within the pores.
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