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Cyclin G2, A Novel Target Of Sulindac To Inhibit Cell Cycle Progression In Colorectal Cancer, Hongyou Zhao, Bin Yi, Zhipin Liang, Ches'nique N. Phillips, Hui Yi Lin, Adam I. Riker, Yaguang Xi

School of Medicine Faculty Publications

Sulindac has shown significant clinical benefit in preventing colorectal cancer progression, but its mechanism of action has not been fully elucidated. We have found that sulindac sulfide (SS) is able to inhibit cell cycle progression in human colorectal cancer cells, particularly through G1 arrest. To understand the underlying mechanisms of sulindac inhibitory activity, we have demonstrated that Cyclin G2 up-regulation upon SS treatment can substantially delay cell cycle progression by enhancing the transcriptional activity of FOXO3a in human colorectal tumor cells. MiR-182, an oncogenic microRNA known to inhibit FOXO3a gene expression, is also involved in the suppressive effect of SS …