The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Brca1 breast tumors contain distinct CD44+/CD24- and CD133+cells with cancer stem cell characteristics
Open accessAbstract
Introduction: Whether cancer stem cells occur in BRCA1-associated breast cancer and contribute to therapeutic response is not known. Methods: We generated and characterized 16 cell lines from five distinct Brca1deficient mouse mammary tumors with respect to their cancer stem cell characteristics. Results: All cell lines derived from one tumor included increased numbers of CD44+/CD24- cells, which were previously identified as human breast cancer stem cells. All cell lines derived from another mammary tumor exhibited low levels of CD44+/CD24- cells, but they harbored 2% to 5.9% CD133+ cells, which were previously associated with cancer stem cells in other human and murine tumors. When plated in the absence of attachment without presorting, only those cell lines that were enriched in either stem cell marker formed spheroids, which were further enriched in cells expressing the respective cancer stem cell marker. In contrast, cells sorted for CD44+/CD24- or CD133+ markers lost their stem cell phenotype when cultured in monolayers. As few as 50 to 100 CD44+/CD24- or CD133+ sorted cells rapidly formed tumors in nonobese diabetic/severe combined immunodeficient mice, whereas 50-fold to 100-fold higher numbers of parental or stem cell depleted cells were required to form few, slow-growing tumors. Expression of stem cell associated genes, including Oct4, Notch1, Aldh1, Fgfr1, and Sox1, was increased in CD44+/CD24- and CD133+ cells. In addition, cells sorted for cancer stem cell markers and spheroid-forming cells were significantly more resistant to DNA-damaging drugs than were parental or stem cell depleted populations, and they were sensitized to the drugs by the heat shock protein-90 inhibitor 17-DMAG (17-dimethylaminoethylamino-17-demethoxygeldanamycin hydrochloride). Conclusion: Brca1-deficient mouse mammary tumors harbor heterogeneous cancer stem cell populations, and CD44+/CD24- cells represent a population that correlates with human breast cancer stem cells.
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Chou, T.-C., & Talalay, P. (1984) · Advances in Enzyme Regulation · doi:10.1016/0065-2571(84)90007-4 · Cited by 7,178
Promoter Hypermethylation and BRCA1 Inactivation in Sporadic Breast and Ovarian Tumors
Esteller, M. (2000) · Journal of the National Cancer Institute · doi:10.1093/jnci/92.7.564 · Cited by 1,233 · cited 1×
“However, reduced BRCA1 protein expression is detected in highgrade sporadic breast and ovarian tumors, suggesting that epigenetic downregulation of BRCA1 contributes to their aggressive clinical course [6-8].”
BackgroundCatteau, A., Harris, W. H., Xu, C.-F., & Solomon, E. (1999) · Oncogene · doi:10.1038/sj.onc.1202509 · Cited by 354
Cited by
Cancer stem cells in solid tumours: accumulating evidence and unresolved questions
Visvader, J. E., & Lindeman, G. J. (2008) · Nature Reviews Cancer · doi:10.1038/nrc2499 · Cited by 3,429
The epigenetics of epithelial-mesenchymal plasticity in cancer
Tam, W. L., & Weinberg, R. A. (2013) · Nature Medicine · doi:10.1038/nm.3336 · Cited by 1,163
Vinci, M., Gowan, S., Boxall, F., Patterson, L., Zimmermann, M., Court, W., Lomas, C., Mendiola, M., Hardisson, D., & Eccles, S. A. (2012) · BMC Biology · doi:10.1186/1741-7007-10-29 · Cited by 1,024
Kao, J., Salari, K., Bocanegra, M., Choi, Y.-L., Girard, L., Gandhi, J., Kwei, K. A., Hernandez-Boussard, T., Wang, P., Gazdar, A. F., et al. (2009) · PLoS ONE · doi:10.1371/journal.pone.0006146 · Cited by 788
Gurney, A., Axelrod, F., Bond, C. J., Cain, J., Chartier, C., Donigan, L., Fischer, M., Chaudhari, A., Ji, M., Kapoun, A. M., et al. (2012) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1120068109 · Cited by 614
Metadata
- Authors
- Wright, M. H., Calcagno, A. M., Salcido, C. D., Carlson, M. D., Ambudkar, S. V., & Varticovski, L.
- Venue
- Breast Cancer Research
- Published
- 2008-02-01
- Volume
- 10
- Issue
- 1
- Pages
- R10-R10
- ISSN
- 1465-5411 (ISSN-L)
- 1465-542X
- OpenAlex
- W1997280228
- Cited by
- 642
- References
- 3
- FWCI
- 29.57
- Type
- journal article
- Language
- en
- Open access
- gold
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