Title |
RhoC Impacts the Metastatic Potential and Abundance of Breast Cancer Stem Cells
|
---|---|
Published in |
PLOS ONE, July 2012
|
DOI | 10.1371/journal.pone.0040979 |
Pubmed ID | |
Authors |
Devin T. Rosenthal, Jie Zhang, Liwei Bao, Lian Zhu, Zhifen Wu, Kathy Toy, Celina G. Kleer, Sofia D. Merajver |
Abstract |
Cancer stem cells (CSCs) have been shown to promote tumorigenesis of many tumor types, including breast, although their relevance to cancer metastasis remains unclear. While subpopulations of CSCs required for metastasis have been identified, to date there are no known molecular regulators of breast CSC (BCSC) metastasis. Here we identify RhoC GTPase as an important regulator of BCSC metastasis, and present evidence suggesting that RhoC also modulates the frequency of BCSCs within a population. Using an orthotopic xenograft model of spontaneous metastasis we discover that RhoC is both necessary and sufficient to promote SUM149 and MCF-10A BCSC metastasis--often independent from primary tumor formation--and can even induce metastasis of non-BCSCs within these cell lines. The relationship between RhoC and BCSCs persists in breast cancer patients, as expression of RhoC and the BCSC marker ALDH1 are highly correlated in clinical specimens. These results suggest new avenues to combating the deadliest cells driving the most lethal stage of breast cancer progression. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 3 | 33% |
Canada | 2 | 22% |
Unknown | 4 | 44% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 7 | 78% |
Practitioners (doctors, other healthcare professionals) | 1 | 11% |
Scientists | 1 | 11% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Denmark | 1 | 2% |
Unknown | 40 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 17 | 41% |
Student > Bachelor | 6 | 15% |
Researcher | 5 | 12% |
Student > Master | 3 | 7% |
Student > Postgraduate | 3 | 7% |
Other | 3 | 7% |
Unknown | 4 | 10% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 15 | 37% |
Biochemistry, Genetics and Molecular Biology | 10 | 24% |
Medicine and Dentistry | 6 | 15% |
Engineering | 2 | 5% |
Immunology and Microbiology | 1 | 2% |
Other | 2 | 5% |
Unknown | 5 | 12% |