Estrogen Receptor-Regulated Gene Signatures in Invasive Breast Cancer Cells and Aggressive Breast Tumors

Autor: Emily Smart, Svetlana E. Semina, Luis H. Alejo, Nidhi S. Kansara, Jonna Frasor
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Cancers, Vol 14, Iss 12, p 2848 (2022)
Druh dokumentu: article
ISSN: 2072-6694
DOI: 10.3390/cancers14122848
Popis: Most metastatic breast cancers arise from estrogen receptor α (ER)-positive disease, and yet the role of ER in promoting metastasis is unclear. Here, we used an ER+ breast cancer cell line that is highly invasive in an ER- and IKKβ-dependent manner. We defined two ER-regulated gene signatures that are specifically regulated in the subpopulations of invasive cells. The first consists of proliferation-associated genes, which is a known function of ER, which actually suppress rather than enhance invasion. The second signature consists of genes involved in essential biological processes, such as organelle assembly and vesicle trafficking. Importantly, the second subpopulation-specific signature is associated with aggressive disease and poor patient outcome, independently of proliferation. These findings indicate a complex interplay between ER-driven proliferation and invasion, and they define new ER-regulated gene signatures that are predictive of aggressive ER+ breast cancer.
Databáze: Directory of Open Access Journals
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