Article (Scientific journals)
Vimentin-ERK Signaling Uncouples Slug Gene Regulatory Function.
Virtakoivu, Reetta; Mai, Anja; Mattila, Elina et al.
2015In Cancer Research, 75 (11), p. 2349-62
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Keywords :
Animals; Carcinogenesis/genetics; Cell Movement/genetics; Cell Proliferation/genetics; Chick Embryo; Epithelial-Mesenchymal Transition/genetics; Gene Expression Regulation, Neoplastic; Humans; Mitogen-Activated Protein Kinase 1/biosynthesis/genetics; Neoplasm Invasiveness/genetics; Neoplasm Metastasis; Phosphorylation; Transcription Factors/biosynthesis/genetics; Triple Negative Breast Neoplasms/genetics/pathology; Vimentin/biosynthesis/genetics; Xenograft Model Antitumor Assays
Abstract :
[en] Epithelial-mesenchymal transition (EMT) in cells is a developmental process adopted during tumorigenesis that promotes metastatic capacity. In this study, we advance understanding of EMT control in cancer cells with the description of a novel vimentin-ERK axis that regulates the transcriptional activity of Slug (SNAI2). Vimentin, ERK, and Slug exhibited overlapping subcellular localization in clinical specimens of triple-negative breast carcinoma. RNAi-mediated ablation of these gene products inhibited cancer cell migration and cell invasion through a laminin-rich matrix. Biochemical analyses demonstrated direct interaction of vimentin and ERK, which promoted ERK activation and enhanced vimentin transcription. Consistent with its role as an intermediate filament, vimentin acted as a scaffold to recruit Slug to ERK and promote Slug phosphorylation at serine-87. Site-directed mutagenesis established a requirement for ERK-mediated Slug phosphorylation in EMT initiation. Together, these findings identified a pivotal step in controlling the ability of Slug to organize hallmarks of EMT.
Disciplines :
Oncology
Author, co-author :
Virtakoivu, Reetta
Mai, Anja
Mattila, Elina
De Franceschi, Nicola
Imanishi, Susumu Y.
Corthals, Garry
Kaukonen, Riina
Saari, Markku
Cheng, Fang
Torvaldson, Elin
Kosma, Veli-Matti
Mannermaa, Arto
Muharram, Ghaffar
Gilles, Christine ;  Université de Liège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Eriksson, John
Soini, Ylermi
Lorens, James B.
Ivaska, Johanna
More authors (8 more) Less
Language :
English
Title :
Vimentin-ERK Signaling Uncouples Slug Gene Regulatory Function.
Publication date :
2015
Journal title :
Cancer Research
ISSN :
0008-5472
eISSN :
1538-7445
Publisher :
American Association for Cancer Research, United States - Maryland
Volume :
75
Issue :
11
Pages :
2349-62
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
(c)2015 American Association for Cancer Research.
Available on ORBi :
since 09 February 2016

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