Proteomic identification of differentially expressed plasma membrane proteins in renal cell carcinoma by stable isotope labelling of a von Hippel-Lindau transfectant cell line model

Proteomics. 2009 Apr;9(8):2118-30. doi: 10.1002/pmic.200800756.

Abstract

The von Hippel-Lindau (VHL) tumour suppressor gene plays a central role in development of clear cell renal cell carcinoma (RCC). Using a cell line pair generated from the VHL-defective RCC cell line UMRC2 by transfection with vector control or VHL (-/+VHL) and stable isotope labelling with amino acids in cell culture (SILAC) followed by enrichment of plasma membrane proteins by cell surface biotinylation/avidin-affinity chromatography and analysis by GeLC-MS/MS, VHL-associated changes in plasma membrane proteins were analysed. Comparative analysis of -/+VHL cells identified 19 differentially expressed proteins which were confirmed by reciprocal SILAC labelling. These included several proteins previously reported to be VHL targets, such as transferrin receptor 1 and the alpha 3 and beta1 integrin subunits and novel findings including upregulation of CD166 and CD147 in VHL-defective cells. Western blotting confirmed these changes and also revealed VHL-dependent alterations in protein form for CD147 and CD166, which in the case of CD166 was shown to be due to differential glycosylation. Analysis of patient-matched normal and malignant renal tissues confirmed these differences were also present in vivo in a subset of clear cell RCCs. These results illustrate the potential of this approach for identifying VHL-dependent proteins that may be important in tumorigenesis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antigens, CD / biosynthesis
  • Basigin / biosynthesis
  • Biomarkers / metabolism
  • Carcinoma, Renal Cell / chemistry
  • Carcinoma, Renal Cell / metabolism*
  • Carcinoma, Renal Cell / ultrastructure
  • Cell Adhesion Molecules, Neuronal / biosynthesis
  • Cell Line, Tumor
  • Fetal Proteins / biosynthesis
  • Glycosylation
  • Humans
  • Isotope Labeling
  • Kidney Neoplasms / chemistry
  • Kidney Neoplasms / metabolism
  • Kidney Neoplasms / ultrastructure
  • Mass Spectrometry
  • Membrane Proteins / biosynthesis*
  • Proteomics
  • Transfection
  • Up-Regulation
  • Von Hippel-Lindau Tumor Suppressor Protein / physiology*

Substances

  • ALCAM protein, human
  • Antigens, CD
  • Biomarkers
  • Cell Adhesion Molecules, Neuronal
  • Fetal Proteins
  • Membrane Proteins
  • Basigin
  • Von Hippel-Lindau Tumor Suppressor Protein