Microsphere-based tracing and molecular delivery in embryonic stem cells

Anestis Tsakiridis, Lois M. Alexander, Nicole Gennet, Rosario M. Sanchez-Martin, Alessandra Livigni, Meng Li, Mark Bradley, Joshua M. Brickman

Research output: Contribution to journalArticlepeer-review

Abstract

Embryonic stem (ES) cells are in vitro cell lines that can differentiate into all lineages of the fetus and the adult. Despite the versatility of genetic manipulation in murine ES cells, these approaches are time-consuming and rely on inefficient transient cellular delivery systems that can only be applied to undifferentiated ES cell cultures. Here we describe a polystyrene microsphere-based system designed to efficiently deliver biological materials into both undifferentiated and differentiating ES cells. Our results demonstrate that these microspheres can be successfully employed for simultaneous cellular labeling and controlled transfer of various cargos such as fluorophores, proteins and nucleic acids into ES cells without any significant toxicity or loss of pluripotency. This versatile delivery system is also effective in other stem cell lines derived from early embryos, trophoblast and neural stem cells.

Original languageEnglish
Pages (from-to)5853-5861
Number of pages9
JournalBiomaterials
Volume30
Issue number29
DOIs
Publication statusPublished - Oct 2009

Keywords

  • Embryonic stem cell
  • Differentiation
  • Transfection
  • Delivery
  • Microspheres
  • FLOW-CYTOMETRIC ANALYSIS
  • MOUSE EMBRYOS
  • SELF-RENEWAL
  • DIFFERENTIATION
  • TRANSFECTION
  • TRANSDUCTION
  • TRANSPORT
  • CULTURE
  • SIRNA
  • MICE

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