Highly coordinated proteome dynamics during reprogramming of somatic cells to pluripotency

Research output: Contribution to journalArticle

Abstract

Generation of induced pluripotent stem cells (iPSCs) is a process whose mechanistic underpinnings are only beginning to emerge. Here, we applied in-depth quantitative proteomics to monitor proteome changes during the course of reprogramming of fibroblasts to iPSCs. We uncover a two-step resetting of the proteome during the first and last 3 days of reprogramming, with multiple functionally related proteins changing in expression in a highly coordinated fashion. This comprised several biological processes, including changes in the stoichiometry of electron transport-chain complexes, repressed vesicle-mediated transport during the intermediate stage, and an EMT-like process in the late phase. In addition, we demonstrate that the nucleoporin Nup210 is essential for reprogramming by its permitting of rapid cellular proliferation and subsequent progression through MET. Along with the identification of proteins expressed in a stage-specific manner, this study provides a rich resource toward an enhanced mechanistic understanding of cellular reprogramming.

Details

Authors
  • Jenny Hansson
  • Mahmoud Reza Rafiee
  • Sonja Reiland
  • Jose M Polo
  • Julian Gehring
  • Satoshi Okawa
  • Wolfgang Huber
  • Konrad Hochedlinger
  • Jeroen Krijgsveld
Organisations
External organisations
  • European Molecular Biology Laboratory Heidelberg
Research areas and keywords

Keywords

  • Animals, Cell Line, Cell Proliferation, Induced Pluripotent Stem Cells, Mice, Nuclear Pore Complex Proteins, Proteome
Original languageEnglish
Pages (from-to)1579-92
Number of pages14
JournalCell Reports
Volume2
Issue number6
Publication statusPublished - 2012 Dec 27
Publication categoryResearch
Peer-reviewedYes