A novel functional crosstalk between DDR1 and the IGF axis and its relevance for breast cancer.
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| Abstract |
In the last decades increasing importance has been attributed to the Insulin/Insulin-like Growth Factor signaling (IIGFs) in cancer development, progression and resistance to therapy. In fact, IIGFs is often deregulated in cancer. In particular, the mitogenic insulin receptor isoform A (IR-A) and the insulin-like growth factor receptor (IGF-1R) are frequently overexpressed in cancer together with their cognate ligands IGF-1 and IGF-2. Recently, we identified discoidin domain receptor 1 (DDR1) as a new IR-A interacting protein. DDR1, a non-integrin collagen tyrosine kinase receptor, is overexpressed in several malignancies and plays a role in cancer progression and metastasis. Herein, we review recent findings indicating that DDR1 is as a novel modulator of IR and IGF-1R expression and function. DDR1 functionally interacts with IR and IGF-1R and enhances the biological actions of insulin, IGF-1 and IGF-2. Conversely, DDR1 is upregulated by IGF-1, IGF-2 and insulin through the PI3K/AKT/miR-199a-5p circuit. Furthermore, we discuss the role of the non-canonical estrogen receptor GPER1 in the DDR1-IIGFs crosstalk. These data suggest a wider role of DDR1 as a regulator of cell response to hormones, growth factors, and signals coming from the extracellular matrix.
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| Authors | Antonino Belfiore, Roberta Malaguarnera, Maria Luisa Nicolosi, Rosamaria Lappano, Marco Ragusa, Andrea Morrione, Veronica Vella |
| Journal | Cell adhesion & migration (Cell Adh Migr) Vol. 12 Issue 4 Pg. 305-314 ( 2018) ISSN: 1933-6926 [Electronic] United States |
| PMID | 29486622 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review) |
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