Systems Imaging of the Immune Synapse

Area of Science:

• Immunology
• Cell Biology
• Biophysics

Background:

• Understanding T cell activation requires detailed knowledge of signaling molecule dynamics.
• Current imaging techniques often lack the spatial and temporal resolution to capture these events comprehensively.

Purpose of the Study:

• To present an efficient protocol for acquiring and processing 3D live cell imaging data.
• To enable the creation of 4D maps of local protein concentrations during T cell-APC interactions.

Main Methods:

• Utilizing three-dimensional live cell imaging to observe T cell-antigen-presenting cell (APC) interactions.
• Developing computational methods for processing imaging data to generate 4D concentration maps.
• Analyzing subcellular distributions of signaling intermediates at thousands of resolved positions.

Main Results:

• Demonstrated the ability to visualize subcellular protein distributions during T cell activation.
• Generated high-resolution, quantitative maps of local protein concentrations.
• Enabled the study of T cell signaling across thousands of cells with spatiotemporal resolution.

Conclusions:

• The described protocol facilitates efficient acquisition and computational processing of live cell imaging data.
• This approach provides a valuable resource for quantitative analysis of T cell signaling in real-time.
• The 4D mapping technique offers unprecedented insights into the spatial and temporal regulation of T cell activation.