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Related Experiment Video

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Quantitating MHC class II trafficking in primary dendritic cells using imaging flow cytometry.

Cassandra M Hennies1, Maria A Lehn1, Edith M Janssen1

  • 1Division of Immunobiology, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, USA.

Journal of Immunological Methods
|May 14, 2015
PubMed
Summary

This study introduces a new imaging flow cytometry assay to visualize MHC class II (MHCII) trafficking in dendritic cells (DCs). This tool helps uncover molecular mechanisms regulating MHCII levels and CD4(+) T cell activation.

Keywords:
Dendritic cellsImagingInternalizationMHC class II

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Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Dendritic cells (DCs) present antigenic peptides via MHC class II (MHCII) molecules, initiating CD4(+) T cell activation.
  • Surface MHCII-peptide complex levels critically influence CD4(+) T cell response magnitude and phenotype.
  • The molecular regulation of MHCII surface expression, including trafficking dynamics, remains incompletely understood.

Purpose of the Study:

  • To develop and validate a novel multispectral imaging flow cytometry assay.
  • To visualize and analyze MHCII trafficking dynamics in primary dendritic cells.
  • To provide a tool for dissecting molecular mechanisms governing MHCII homeostasis.

Main Methods:

  • Multispectral imaging flow cytometry.
  • Visualization of MHCII trafficking in primary mouse and human dendritic cells.
  • Assay development for dissecting molecular mechanisms of MHCII regulation.

Main Results:

  • Successfully developed a multispectral imaging flow cytometry assay for visualizing MHCII trafficking.
  • Demonstrated the assay's utility in primary mouse and human dendritic cells.
  • Established a tool to investigate the molecular basis of MHCII surface expression regulation.

Conclusions:

  • The developed assay is a valuable tool for studying MHCII trafficking and homeostasis in dendritic cells.
  • This method facilitates the dissection of molecular mechanisms controlling MHCII surface presentation.
  • Understanding MHCII regulation is crucial for modulating CD4(+) T cell responses.