| Autor: |
H. J. Hugo, N. P. A. D. Gunasinghe, B. G. Hollier, T. Tanaka, T. Blick, A. Toh, P. Hill, C. Gilles, M. Waltham, E. W. Thompson |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Breast Cancer Research, Vol 19, Iss 1, Pp 1-25 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1465-542X |
| DOI: |
10.1186/s13058-017-0880-z |
| Popis: |
Abstract Background Epithelial-to-mesenchymal transition (EMT) is associated with downregulated E-cadherin and frequently with decreased proliferation. Proliferation may be restored in secondary metastases by mesenchymal-to-epithelial transition (MET). We tested whether E-cadherin maintains epithelial proliferation in MDA-MB-468 breast cancer cells, facilitating metastatic colonization in severe combined immunodeficiency (SCID) mice. Methods EMT/MET markers were assessed in xenograft tumors by immunohistochemistry. Stable E-cadherin manipulation was effected by transfection and verified by Western blotting, immunocytochemistry, and quantitative polymerase chain reaction (qPCR). Effects of E-cadherin manipulation on proliferation and chemomigration were assessed in vitro by performing sulforhodamine B assays and Transwell assays, respectively. Invasion was assessed by Matrigel outgrowth; growth in vivo was assessed in SCID mice; and EMT status was assessed by qPCR. Hypoxic response of E-cadherin knockdown cell lines was assessed by qPCR after hypoxic culture. Repeated measures analysis of variance (ANOVA), one- and two-way ANOVA with posttests, and paired Student’s t tests were performed to determine significance (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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