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Related Experiment Videos

Time interval gating for analysis of cell function using flow cytometry.

G Durack1, G Lawler, S Kelley

  • 1Purdue University Cytometry Laboratories, Purdue University, West Lafayette, IN 47907.

Cytometry
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

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Time Interval Gating (TIG) streamlines flow cytometry by enabling one instrument to monitor multiple samples simultaneously. This method significantly reduces data collection and analysis time for kinetic assays, making high-volume screening more efficient.

Area of Science:

  • Biomedical Engineering
  • Analytical Chemistry
  • Immunology

Background:

  • Kinetic assays in flow cytometry often involve lengthy data collection and analysis.
  • Monitoring multiple samples concurrently is challenging with standard flow cytometric techniques.

Purpose of the Study:

  • To introduce and validate a novel method, Time Interval Gating (TIG), for efficient flow cytometric kinetic assays.
  • To demonstrate TIG's applicability in reducing assay time and improving data management.

Main Methods:

  • Developed Time Interval Gating (TIG) to allow a single flow cytometer to monitor multiple samples in one kinetic assay.
  • Stored all sample data in a single FCS 2.0 compatible listmode data file (TIG data file).
  • Applied TIG to neutrophil oxidative burst assays using an EPICS Elite flow cytometer, monitoring 11 samples for 30 minutes.

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Main Results:

  • TIG reduced flow cytometry and analysis time by a factor of ten for high-volume screening.
  • Standard listmode analysis software can analyze TIG data files, correlating tubes and time intervals.
  • Results from the entire assay can be visualized on a single two-parameter plot.

Conclusions:

  • Time Interval Gating (TIG) significantly enhances the efficiency of flow cytometric kinetic assays.
  • TIG facilitates high-throughput screening and provides organized data management for automated sampling systems.
  • This method is adaptable to most commercial flow cytometers and standard analysis software.