Inhibition of invasion by glycogen synthase kinase-3 beta inhibitors through dysregulation of actin re-organisation via down-regulation of WAVE2

Y Yoshino, M Suzuki, H Takahashi, C Ishioka - … and Biophysical Research …, 2015 - Elsevier
Y Yoshino, M Suzuki, H Takahashi, C Ishioka
Biochemical and Biophysical Research Communications, 2015•Elsevier
Cancer cell invasion is a critical phenomenon in cancer pathogenesis. Glycogen synthase
kinase-3β (GSK-3β) has been reported to regulate cancer cell invasion both negatively and
positively. Thus, the net effect of GSK-3β on invasion is unclear. In this report, we showed
that GSK-3β inhibitors induced dysregulation of the actin cytoskeleton and functional
insufficiency of focal adhesion, which resulted in suppressed invasion. In addition, WAVE2,
an essential molecule for actin fibre branching, was down-regulated after GSK-3β inhibition …
Abstract
Cancer cell invasion is a critical phenomenon in cancer pathogenesis. Glycogen synthase kinase-3β (GSK-3β) has been reported to regulate cancer cell invasion both negatively and positively. Thus, the net effect of GSK-3β on invasion is unclear. In this report, we showed that GSK-3β inhibitors induced dysregulation of the actin cytoskeleton and functional insufficiency of focal adhesion, which resulted in suppressed invasion. In addition, WAVE2, an essential molecule for actin fibre branching, was down-regulated after GSK-3β inhibition. Collectively, we propose that the WAVE2-actin cytoskeleton axis is an important target of GSK-3β inhibitors in cancer cell invasion.
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