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. 2019 Sep 8;22(1):106–114. doi: 10.22074/cellj.2020.6537

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The Cell Journal (Yakhteh) is an open access journal which means the articles are freely available online for any individual author to download and use the providing address. The journal is licensed under a Creative Commons Attribution-Non Commercial 3.0 Unported License which allows the author(s) to hold the copyright without restrictions that is permitting unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

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Fig.1 — Analysis of spheroid formation of breast cancer cells under simulated microgravity (0.003 g) after one and five days, under light microscopy. A. Formation of small spheroids can be observed after 24 hours, B. After 5 days, size of the cluster to tubular shaped spheroids increased, while part of the cells remained attached to the culture flask surface, and C. In the control group under 1 g conditions, the cells showed typical shape with flat morphology and rectangular to hexagonal borders (scale bar: 50 µm).