Abstract:
:The Twist1 transcription factor is known to promote tumor metastasis and induce Epithelial-Mesenchymal Transition (EMT). Here, we report that Twist1 is capable of promoting the formation of invadopodia, specialized membrane protrusions for extracellular matrix degradation. Twist1 induces PDGFRα expression, which in turn activates Src, to promote invadopodia formation. We show that Twist1 and PDGFRα are central mediators of invadopodia formation in response to various EMT-inducing signals. Induction of PDGFRα and invadopodia is essential for Twist1 to promote tumor metastasis. Consistent with PDGFRα being a direct transcriptional target of Twist1, coexpression of Twist1 and PDGFRα predicts poor survival in breast tumor patients. Therefore, invadopodia-mediated matrix degradation is a key function of Twist1 in promoting tumor metastasis.
journal_name
Cancer Celljournal_title
Cancer cellauthors
Eckert MA,Lwin TM,Chang AT,Kim J,Danis E,Ohno-Machado L,Yang Jdoi
10.1016/j.ccr.2011.01.036subject
Has Abstractpub_date
2011-03-08 00:00:00pages
372-86issue
3eissn
1535-6108issn
1878-3686pii
S1535-6108(11)00048-1journal_volume
19pub_type
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