Ubiquitin C-terminal Hydrolase 37, a novel predictor for hepatocellular carcinoma recurrence, promotes cell migration and invasion via interacting and deubiquitinating PRP19

Biochim Biophys Acta. 2013 Mar;1833(3):559-72. doi: 10.1016/j.bbamcr.2012.11.020. Epub 2012 Dec 4.

Abstract

Ubiquitin C-terminal hydrolase 37 (UCH37) plays a crucial role in numerous biological processes and is also involved in oncogenesis. In this study, clinicopathologic data showed that UCH37 was over-expressed in hepatocellular carcinoma (HCC) cancerous tissues and was a significant predictor for time to recurrence (TTR). In vitro, we discovered that UCH37 could promote cell migration and invasion. Subsequently, we utilized Isobaric Tags for Relative and Absolute Quantitation (iTRAQ) to identify differentially expressed proteins in UCH37 over-expressing cells compared with the control cells, and found that PRP19, an essential RNA splicing factor, was up-regulated. The relationship between UCH37, PRP19 and the capability of cell migration and invasion was further confirmed. Collectively, this study demonstrated that UCH37 could promote cell migration and invasion in HCC cell lines through interacting and deubiquitinating PRP19, and suggested that UCH37 could be a novel predictor for HCC recurrence after curative resection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apoptosis
  • Blotting, Western
  • Carboxypeptidases / genetics
  • Carboxypeptidases / metabolism*
  • Carcinoma, Hepatocellular / metabolism*
  • Carcinoma, Hepatocellular / mortality
  • Carcinoma, Hepatocellular / secondary
  • Cell Adhesion
  • Cell Cycle
  • Cell Movement*
  • Cell Proliferation
  • DNA Repair Enzymes / antagonists & inhibitors
  • DNA Repair Enzymes / genetics
  • DNA Repair Enzymes / metabolism*
  • Female
  • Flow Cytometry
  • Fluorescent Antibody Technique
  • Humans
  • Immunoenzyme Techniques
  • Immunoprecipitation
  • Liver Neoplasms / metabolism*
  • Liver Neoplasms / mortality
  • Liver Neoplasms / pathology
  • Male
  • Middle Aged
  • Neoplasm Invasiveness
  • Neoplasm Recurrence, Local / metabolism*
  • Neoplasm Recurrence, Local / mortality
  • Neoplasm Recurrence, Local / pathology
  • Nuclear Proteins / antagonists & inhibitors
  • Nuclear Proteins / genetics
  • Nuclear Proteins / metabolism*
  • Prognosis
  • Protein Processing, Post-Translational
  • RNA Splicing Factors
  • RNA, Messenger / genetics
  • RNA, Small Interfering / genetics
  • Real-Time Polymerase Chain Reaction
  • Reverse Transcriptase Polymerase Chain Reaction
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
  • Survival Rate
  • Ubiquitin / metabolism*
  • Ubiquitin Thiolesterase
  • Wound Healing

Substances

  • Nuclear Proteins
  • RNA Splicing Factors
  • RNA, Messenger
  • RNA, Small Interfering
  • Ubiquitin
  • Carboxypeptidases
  • UCHL5 protein, human
  • Ubiquitin Thiolesterase
  • DNA Repair Enzymes
  • PRPF19 protein, human