%A Pushuai Wen,Ruirui Kong,Jianghong Liu,Li Zhu,Xiaoping Chen,Xiaofei Li,Yongzhan Nie,Kaichun Wu,Jane Y. Wu %T USP33, a new player in lung cancer, mediates Slit-Robo signaling %0 Journal Article %D 2014 %J Protein Cell %J Protein & Cell %@ 1674-800X %R 10.1007/s13238-014-0070-z %P 704-713 %V 5 %N 9 %U {https://journal.hep.com.cn/pac/EN/10.1007/s13238-014-0070-z %8 2014-09-25 %X

Ubiquitin specific protease 33 (USP33) is a multifunctional protein regulating diverse cellular processes. The expression and role ofUSP33 in lung cancer remain unexplored. In this study, we show that USP33 is down-regulated in multiple cohorts of lung cancer patients and that low expression of USP33 is associated with poor prognosis. USP33 mediates Slit-Robo signaling in lung cancer cell migration. Downregulation of USP33 reduces the protein stability of Robo1inlungcancer cells, providing apreviouslyunknown mechanism for USP33 function in mediating Slit activity in lung cancer cells. Taken together, USP33 is a new player in lung cancer that regulates Slit-Robo signaling. Our data suggest that USP33 may be a candidate tumor suppressor for lung cancer with potential as a prognostic marker.