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Related Experiment Video

Updated: Aug 13, 2025

Real-time Live Imaging of T-cell Signaling Complex Formation

Real-time Live Imaging of T-cell Signaling Complex Formation

Published on: June 23, 2013

CAR T-cell behavior and function revealed by real-time imaging.

David Espie^1,2, Emmanuel Donnadieu³

¹Université Paris Cité, CNRS, INSERM, Equipe Labellisée Ligue Contre le Cancer, Institut Cochin, INSERM U1016, 22 rue Méchain, F-75014, Paris, France.

Seminars in Immunopathology

|January 23, 2023

Summary

This summary is machine-generated.

Chimeric antigen receptor (CAR) T-cell therapy shows promise but faces challenges in solid tumors. Real-time imaging microscopy reveals CAR T-cell dynamics, highlighting their multi-killing potential and guiding future immunotherapy development.

Keywords:

CAR T-cells Confocal Cytotoxicity Imaging Immune synapse Two-photon

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Last Updated: Aug 13, 2025

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Published on: June 23, 2013

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Published on: February 17, 2022

Area of Science:

Immunotherapy
Cellular Therapy
Oncology

Background:

Chimeric antigen receptor (CAR) T-cell therapy has achieved success in B-cell malignancies.
Significant challenges remain in applying CAR T-cell therapy to solid tumors.
Understanding T-cell dynamics within the tumor microenvironment is crucial for improving efficacy.

Purpose of the Study:

To review the application of real-time imaging microscopy in studying CAR T-cell biology.
To explore the spatial and kinetic aspects of CAR T-cell responses.
To identify determinants limiting CAR T-cell efficacy in solid tumors.

Main Methods:

Real-time imaging microscopy combined with innovative preclinical models.
Characterization of CAR T-cells beyond flow cytometry and transcriptome profiling.
Analysis of T-cell infiltration, migration, and conjugate formation within tumors.

Main Results:

Imaging studies reveal important insights into CAR T-cell behavior, including their multi-killing potential.
Spatial and kinetic data provide a deeper understanding of T-cell-tumor interactions.
Limitations in CAR T-cell function within the complex tumor microenvironment are being elucidated.

Conclusions:

Real-time imaging microscopy is a powerful tool for dissecting CAR T-cell dynamics.
Understanding these dynamics is key to overcoming challenges in solid tumor immunotherapy.
Integrating imaging with other techniques will address remaining questions in engineered T-cell therapy.