Abstract
Evidence is emerging that cancer cells are arranged as a hierarchy that spans from stem cells to lineage-restricted progenitor cells. The recent development of spheroid cultures with several tissue type has provided new opportunities to assess cancer stem cell (CSC) activity by allowing them to propagate under conditions that resemble the microenvironment for growth of tumors. One tissue type widely used for stem cell investigations is mammary tissue, and the sphere formation assay has been used in both normal mammary tissue and in breast cancer. Here, we describe detailed experimental methodology for generating and propagating spheres from normal mammary tissue and primary breast tumors of mice, patient derived xenografts (PDXs) and breast cancer cell lines. We further describe how these sphere cultures can be employed for coculture assays to assess the effect of tumor microenvironment (TME) on self-renewal ability of CSCs in breast cancer.
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Acknowledgments
We thank Dr. Snahlata Singh for critical reading of the manuscript and helpful discussions. This work was supported by grants from American Cancer Society and NCI-R01 (R01CA237243) grant to R.C.
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Nandi, A., Chakrabarti, R. (2022). Assessment of Breast Cancer Stem Cell Activity Using a Spheroid Formation Assay. In: Kannan, N., Beer, P. (eds) Stem Cell Assays. Methods in Molecular Biology, vol 2429. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1979-7_33
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DOI: https://doi.org/10.1007/978-1-0716-1979-7_33
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