Ex Vivo Imaging of Resident CD8 T Lymphocytes in Human Lung Tumor Slices Using Confocal Microscopy

作者： Elisa Peranzoni*1, Houcine Bougherara*1, Sarah Barrin*1, Audrey Mansuet-Lupo2,3, Marco Alifano4, Diane Damotte2,3, Emmanuel Donnadieu1 1Institut Cochin, Inserm U1016-CNRS UMR8104,Université Paris Descartes, 2Department of Pathology, Paris Centre University Hospitals,Université Paris Descartes, 3INSERM U1138, Cancer and Immune Escape, Cordeliers Research Center,University Pierre and Marie Curie, 4Department of Thoracic Surgery, Paris Centre University Hospitals,University Paris Descartes

简介：

Overview

This protocol describes a method to image resident tumor-infiltrating CD8 T cells labeled with fluorescently coupled antibodies within human lung tumor slices. This technique allows for real-time analyses of CD8 T cell migration using confocal microscopy.

Key Study Components

Area of Science

• Immunology
• Oncology
• Microscopy

Background

• Understanding T cell migration is crucial in tumor immunology.
• This method builds on previous techniques established for tracking T cells.
• Confocal microscopy provides detailed imaging of cellular interactions.
• Fluorescent labeling enhances visualization of specific cell types.

Purpose of Study

• To monitor the behavior of resident CD8 T cells in a preserved tumor environment.
• To investigate factors regulating T cell migration within tumors.
• To improve understanding of tumor-immune interactions.

Methods Used

• Preparation of tumor slices using low melting point agarose.
• Immunostaining with fluorescently labeled antibodies.
• Real-time imaging using confocal microscopy.
• Analysis of CD8 T cell migration patterns.

Main Results

• Successful imaging of CD8 T cells in human lung tumor slices.
• Visualization of T cell distribution in tumor microenvironments.
• Identification of migration patterns of resident CD8 T cells.
• Insights into the interaction between T cells and tumor cells.

Conclusions

• This method provides a powerful tool for studying T cell dynamics in tumors.
• Real-time imaging can reveal critical insights into tumor immunology.
• Future studies can build on this technique to explore therapeutic interventions.

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