USP33, a new player in lung cancer, mediates Slit-Robo signaling

Pushuai Wen, Ruirui Kong, Jianghong Liu, Li Zhu, Xiaoping Chen, Xiaofei Li, Yongzhan Nie, Kaichun Wu, Jane Y. Wu

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


Ubiquitin specific protease 33 (USP33) is a multifunctional protein regulating diverse cellular processes. The expression and role of USP33 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 Robo1 in lung cancer cells, providing a previously unknown 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.

Original languageEnglish (US)
Pages (from-to)704-713
Number of pages10
JournalProtein & cell
Issue number9
StatePublished - Sep 1 2014

ASJC Scopus subject areas

  • Drug Discovery
  • Biochemistry
  • Biotechnology
  • Cell Biology


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