Published in:
01-05-2008 | Lab. Investigation-Human/Animal Tissue
ATRA-inhibited proliferation in glioma cells is associated with subcellular redistribution of β-catenin via up-regulation of Axin
Authors:
Jianrong Lu, Feng Zhang, Daqing Zhao, Liu Hong, Jie Min, Liying Zhang, Fanfan Li, Yan Yan, Hang Li, Yu Ma, Qing Li
Published in:
Journal of Neuro-Oncology
|
Issue 3/2008
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Abstract
Retinoic acid (RA) is a major chemopreventive agent which exerts strong anti-tumor activity partly by trans-repressing the Wnt/β-catenin signaling pathway in some tumor cell lines. However, the definite mechanism of RA trans-repression of the Wnt/β-catenin signaling pathway has not been elucidated clearly. In this work, we found that all-trans retinoic acid (ATRA) significantly inhibited proliferation of glioma cells, accompanied by up-regulation of expression of Axin and altered subcellular distribution of β-catenin. Transfecting C6 cells with rAxin further confirmed that increased expression of Axin is obligate for inhibition of proliferation and the increase of the cytoplasmic β-catenin. Our results suggested that Axin might play an important role in RA-mediated anti-proliferative effects of glioma cell lines.