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QPatch: the past, present and future of automated patch clamp.
1Sophion Bioscience, Inc., 675 US Highway One, North Brunswick, NJ 08902, USA. cma@sophion.com
Expert Opinion on Therapeutic Targets
|March 22, 2006
Summary
The QPatch 16 automates gigaseal patch clamp experiments, enhancing throughput for ion channel drug discovery. Its unique features enable unattended operation and accurate IC50 values, improving safety testing.
Area of Science:
- Biophysics
- Pharmacology
- Neuroscience
Background:
- Automated patch clamp technology is crucial for ion channel research.
- High-throughput screening is essential for drug discovery and safety testing.
- Previous automated systems faced limitations in throughput and accuracy.
Purpose of the Study:
- To introduce the QPatch 16 system and its capabilities.
- To highlight the advancements in automated patch clamp technology.
- To demonstrate the feasibility of direct measurements in ion channel drug discovery and safety testing.
Main Methods:
- Utilized the QPatch 16 system with its 16-channel electrode array (QPlate).
- Employed an automated cell preparation station for unattended operation.
- Incorporated glass-coated microfluidic channels and four independent pipetting heads for efficient liquid handling.
- Applied 100% series resistance compensation for accurate voltage error correction.
Main Results:
- Achieved significantly increased throughput for gigaseal patch clamp experiments.
- Enabled direct measurements for ion channel drug discovery and safety testing.
- Demonstrated accurate IC50 values due to reduced compound absorption.
- Obtained high-quality patch clamp recordings comparable or superior to conventional methods.
Conclusions:
- The QPatch 16 system offers a robust solution for high-throughput ion channel screening.
- Unique features like automated cell preparation and series resistance compensation enhance experimental accuracy and efficiency.
- The modular design allows for future scalability to 48 channels (QPatch HT).