Related Experiment Video
Updated: Apr 12, 2026

A TIRF Microscopy Technique for Real-time, Simultaneous Imaging of the TCR and its Associated Signaling Proteins
Published on: March 22, 2012
Protein clustering and spatial organization in T-cells
Michael J Shannon1, Garth Burn1, Andrew Cope2
1*Department of Physics and Randall Division of Cell and Molecular Biophysics, King's College London, London SE1 1UL, U.K.
Super resolution microscopy now allows detailed study of T-cell protein microclusters at the single-molecule level. This reveals nanoscale organization critical for T-cell migration and responses.
Area of Science:
- Immunology
- Cell Biology
- Microscopy
Background:
- T-cell protein microclusters were previously studied at microscale.
- Limited resolution hindered understanding of their nanoscale structure and function.
Purpose of the Study:
- To investigate T-cell protein microcluster structure and function at the single-molecule level.
- To explore the role of nanoscale organization in T-cell responses.
Main Methods:
- Super resolution microscopy provided ~20nm resolution.
- Generation of highly accurate pointillist maps of single molecule locations.
- Development of analysis tools for nanoscale organization descriptors.
Main Results:
- Enabled interrogation of T-cell protein microcluster structure at the single-molecule level.
- Provided highly accurate maps of molecular organization within microclusters.
- Facilitated analysis of nanoscale organization governing T-cell responses.
Conclusions:
- Super resolution microscopy is key to understanding T-cell protein microcluster organization.
- Nanoscale organization is crucial for migratory T-cell function and responses.
Related Concept Videos
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
Diversity of Antigen Receptors
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Vesicular Tubular Clusters
With the help of motor proteins such...
Antigen Presenting Cells
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Cells of the Adaptive Immune Response

