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Cytosolic Calcium Measurements in Renal Epithelial Cells by Flow Cytometry
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T Cell Calcium Mobilization Study (Flow Cytometry).

Guo N Huang1

  • 1Program in Biochemistry, Cellular and Molecular Biology, Johns Hopkins University School of Medicine, Baltimore, USA.

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Summary
This summary is machine-generated.

T cell activation involves calcium release and influx through specific channels. This study presents a simple flow cytometry assay to detect T cell calcium mobilization defects in mice.

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Analysis of T-cell Receptor-Induced Calcium Influx in Primary Murine T-cells by Full Spectrum Flow Cytometry
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Area of Science:

  • Immunology
  • Cell Biology
  • Molecular Biology

Background:

  • T cell receptor (TCR) activation initiates calcium signaling, crucial for T cell function.
  • Calcium influx occurs via intermediate/inward-rectifier K+ (IKr) channels, sustaining elevated cytoplasmic calcium levels.
  • This sustained calcium level activates downstream enzymes and transcription factors essential for T cell activation.

Purpose of the Study:

  • To present a straightforward protocol for monitoring T cell calcium mobilization.
  • To enable the examination of T cell calcium signaling defects in transgenic mouse models.

Main Methods:

  • Utilizes non-ratiometric dyes for calcium monitoring.
  • Employs flow cytometry for temporal analysis of TCR-triggered calcium changes.
  • Assesses calcium mobilization in T cells from transgenic mice.

Main Results:

  • Demonstrates a method to track TCR-induced calcium dynamics over time.
  • Provides a simple assay for identifying T cell calcium mobilization defects.

Conclusions:

  • The described flow cytometry protocol is effective for assessing T cell calcium signaling.
  • This assay facilitates the study of T cell activation defects in various experimental models, including transgenic mice.