A human pluripotent stem cell surface N-glycoproteome resource reveals markers, extracellular epitopes, and drug targets

Stem Cell Reports. 2014 Jun 6;3(1):185-203. doi: 10.1016/j.stemcr.2014.05.002. eCollection 2014 Jul 8.

Abstract

Detailed knowledge of cell-surface proteins for isolating well-defined populations of human pluripotent stem cells (hPSCs) would significantly enhance their characterization and translational potential. Through a chemoproteomic approach, we developed a cell-surface proteome inventory containing 496 N-linked glycoproteins on human embryonic (hESCs) and induced PSCs (hiPSCs). Against a backdrop of human fibroblasts and 50 other cell types, >100 surface proteins of interest for hPSCs were revealed. The >30 positive and negative markers verified here by orthogonal approaches provide experimental justification for the rational selection of pluripotency and lineage markers, epitopes for cell isolation, and reagents for the characterization of putative hiPSC lines. Comparative differences between the chemoproteomic-defined surfaceome and the transcriptome-predicted surfaceome directly led to the discovery that STF-31, a reported GLUT-1 inhibitor, is toxic to hPSCs and efficient for selective elimination of hPSCs from mixed cultures.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cells, Cultured
  • Epitopes / analysis*
  • Epitopes / immunology*
  • Flow Cytometry
  • Glycoproteins / immunology*
  • Glycoproteins / metabolism*
  • Humans
  • Immunohistochemistry
  • Pluripotent Stem Cells / immunology*
  • Pluripotent Stem Cells / metabolism*
  • Proteome / analysis*
  • Real-Time Polymerase Chain Reaction

Substances

  • Epitopes
  • Glycoproteins
  • Proteome