TY - JOUR
T1 - A reciprocal tensin-3-cten switch mediates EGF-driven mammary cell migration
AU - Katz, Menachem
AU - Amit, Ido
AU - Citri, Ami
AU - Shay, Tal
AU - Carvalho, Silvia
AU - Lavi, Sara
AU - Milanezi, Fernanda
AU - Lyass, Ljuba
AU - Amariglio, Ninette
AU - Jacob-Hirsch, Jasmine
AU - Ben-Chetrit, Nir
AU - Tarcic, Gabi
AU - Lindzen, Moshit
AU - Avraham, Roi
AU - Liao, Yi Chun
AU - Trusk, Patricia
AU - Lyass, Asya
AU - Rechavi, Gideon
AU - Spector, Neil L.
AU - Lo, Su Hao
AU - Schmitt, Fernando
AU - Bacus, Sarah S.
AU - Yarden, Yosef
PY - 2007/8/1
Y1 - 2007/8/1
N2 - Cell migration driven by the epidermal growth factor receptor (EGFR) propels morphogenesis and involves reorganization of the actin cytoskeleton. Although de novo transcription precedes migration, transcript identity remains largely unknown. Through their actin-binding domains, tensins link the cytoskeleton to integrin-based adhesion sites. Here we report that EGF downregulates tensin-3 expression, and concomitantly upregulates cten, a tensin family member that lacks the actin-binding domain. Knockdown of cten or tensin-3, respectively, impairs or enhances mammary cell migration. Furthermore, cten displaces tensin-3 from the cytoplasmic tail of integrin β1, thereby instigating actin fibre disassembly. In invasive breast cancer, cten expression correlates not only with high EGFR and HER2, but also with metastasis to lymph nodes. Moreover, treatment of inflammatory breast cancer patients with an EGFR/HER2 dual-specificity kinase inhibitor significantly downregulated cten expression. In conclusion, a transcriptional tensin-3-cten switch may contribute to the metastasis of mammary cancer.
AB - Cell migration driven by the epidermal growth factor receptor (EGFR) propels morphogenesis and involves reorganization of the actin cytoskeleton. Although de novo transcription precedes migration, transcript identity remains largely unknown. Through their actin-binding domains, tensins link the cytoskeleton to integrin-based adhesion sites. Here we report that EGF downregulates tensin-3 expression, and concomitantly upregulates cten, a tensin family member that lacks the actin-binding domain. Knockdown of cten or tensin-3, respectively, impairs or enhances mammary cell migration. Furthermore, cten displaces tensin-3 from the cytoplasmic tail of integrin β1, thereby instigating actin fibre disassembly. In invasive breast cancer, cten expression correlates not only with high EGFR and HER2, but also with metastasis to lymph nodes. Moreover, treatment of inflammatory breast cancer patients with an EGFR/HER2 dual-specificity kinase inhibitor significantly downregulated cten expression. In conclusion, a transcriptional tensin-3-cten switch may contribute to the metastasis of mammary cancer.
UR - http://www.scopus.com/inward/record.url?scp=34547601870&partnerID=8YFLogxK
U2 - 10.1038/ncb1622
DO - 10.1038/ncb1622
M3 - Article
C2 - 17643115
AN - SCOPUS:34547601870
SN - 1465-7392
VL - 9
SP - 961
EP - 969
JO - Nature Cell Biology
JF - Nature Cell Biology
IS - 8
ER -