Erschienen in:
01.09.2014 | Gynecologic Oncology
MicroRNA-543 suppresses endometrial cancer oncogenicity via targeting FAK and TWIST1 expression
verfasst von:
Li Bing, Chen Hong, Shang Li-Xin, Gao Wei
Erschienen in:
Archives of Gynecology and Obstetrics
|
Ausgabe 3/2014
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Abstract
Introduction
Focal adhesion kinase (FAK) is a critical mediator of extracellular matrix signaling, cell survival, proliferation and motility. Twist homolog 1 (TWIST1) is a transcription factor and serves as a powerful oncogene. Increased FAK and TWIST1 expression are observed in a variety of solid human tumors and correlate with metastasis and poor survival.
Materials and methods
Here, we identify miR-543 as a direct regulator of FAK and TWIST1 expression in endometrial cancer.
Results
Forced expression of miR-543 in endometrial cancer cell lines decreases both endogenous FAK and TWIST1 mRNA and protein levels. Forced expression of miR-543 in aggressive endometrial cancer cell lines also impairs tumor cell monolayer proliferation, anchorage-independent growth, migration and invasion. Endogenous miR-543 expression is decreased in malignant versus normal endometrium tissue and the levels of miR-543 inversely correlate with mRNA levels of FAK and TWIST1.
Conclusions
miR-543 expression is decreased in endometrial cancer and serves as a tumor suppressor by targeting FAK and TWIST1 expression.