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Related Concept Videos

Ion Channels01:19

Ion Channels

The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
Ion channels are specialized integral membrane proteins on the plasma membrane that allow specific...

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Recombinant cell lines stably expressing functional ion channels.

Florian Steiner1, Sraboni Ghose, Urs Thomet

  • 1Genionics AG, Schlieren, Switzerland. florian.steiner@genionics.com

Methods in Molecular Biology (Clifton, N.J.)
|March 26, 2010
PubMed
Summary

This study presents a stable cell-based system for studying ion channels, specifically the nicotinic acetylcholine receptor alpha7 (nAChRalpha7). This system facilitates electrophysiological assays crucial for drug discovery and understanding cellular functions.

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Optimized Transfection Strategy for Expression and Electrophysiological Recording of Recombinant Voltage-Gated Ion Channels in HEK-293T Cells

Published on: January 19, 2011

Area of Science:

  • Biochemistry
  • Cell Biology
  • Neuroscience

Background:

  • Ion channels are vital membrane proteins regulating ion transport across cell membranes in all domains of life.
  • These channels play critical roles in essential cellular processes, including nerve signaling, hormone release, and cell division.
  • Targeting ion channels is a key strategy in modern pharmaceutical research and development.

Purpose of the Study:

  • To develop a robust and stable cell-based expression system for ion channel research.
  • To enable efficient electrophysiological assays for biophysical characterization and modulation of ion channels.
  • To specifically demonstrate the utility of this system for the nicotinic acetylcholine receptor alpha7 (nAChRalpha7).

Main Methods:

  • Heterologous expression of the nicotinic acetylcholine receptor alpha7 (nAChRalpha7) in a suitable host cell.
  • Construction and validation of a stable, cell-based expression platform.
  • Application of electrophysiological techniques to analyze ion channel function.

Main Results:

  • Successfully established a stable cell line expressing nAChRalpha7.
  • Demonstrated the efficacy of the developed system for conducting electrophysiological measurements.
  • Validated the system's suitability for studying ion channel biophysics and pharmacology.

Conclusions:

  • The developed stable cell-based expression system provides a valuable tool for ion channel research.
  • This platform facilitates the study of ion channel function and modulation, aiding drug discovery efforts.
  • The system is particularly effective for characterizing specific targets like the nAChRalpha7.