on March 13, 2003
Arteriosclerosis, Thrombosis, and Vascular Biology. 2003
Published online before print March 13, 2003, doi: 10.1161/01.ATV.0000066878.27340.22
Published online before print March 13, 2003, doi: 10.1161/01.ATV.0000066878.27340.22
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Submitted on December 26, 2002
Accepted on February 21, 2003
Human Protease-Activated Receptor 1 Expression in Malignant Epithelia. A Role in Invasiveness
Yong-Jun Yin ;
From the Department of Oncology Hadassah-University Hospital, Jerusalem, Israel.
* To whom correspondence should be addressed. E-mail: barshav{at}md.huji.ac.il.
Abstract--While protease-activated receptors (PARs) play a traditional role in vascular biology, they emerge with surprisingly new assignments in tumor biology. PAR1 expression correlates with the invasion properties of breast carcinoma, whereas human PAR1 antisense reduces their ability to migrate through Matrigel. Part of the molecular mechanism of PAR1 invasion involves the formation of focal contact complexes on PAR1 activation. PAR1 induces angiogenesis in animal models in vivo and exhibits an oncogenic phenotype of enhanced ductal complexity when overexpressed in mouse mammary glands.
Key words: PAR1 • epithelia • invasion • metastasis • angiogenesis
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