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[Calcium and electropermeabilized cells].

M Golzio1, B Gabriel, F Boissier

  • 1IPBS CNRS (UMR 5089) 205, route de Narbonne, 31077 Toulouse.

Journal De La Societe De Biologie
|January 8, 2004
PubMed
Summary
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This study demonstrates that controlled electric pulses can introduce calcium ions (Ca2+) into Chinese hamster ovary cells. While high Ca2+ levels impact cell survival, moderate levels are tolerated, with rapid uptake and subsequent natural regulation observed.

Area of Science:

  • Cell biology
  • Biotechnology
  • Electroporation

Context:

  • Electroporation enables the transport of hydrophilic molecules across cell membranes.
  • Investigating the controlled intracellular delivery of specific ions is crucial for cellular research.

Purpose:

  • To explore the feasibility of introducing defined quantities of calcium ions (Ca2+) into cells using electroporation.
  • To assess the impact of Ca2+ influx on cell viability and intracellular concentration dynamics.

Summary:

  • Chinese hamster ovary cells were subjected to electric pulses in buffers with varying Ca2+ concentrations.
  • A Ca2+ concentration of 1 mM was well-tolerated by the cells.
  • Rapid Ca2+ entry into cells was observed within seconds under moderate electrical conditions, followed by spontaneous intracellular level regulation within minutes.

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Impact:

  • Provides insights into electrical injection techniques for precise ion delivery in cell biology.
  • Highlights potential applications in high-throughput biotechnology for cellular manipulation and research.