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richardlewisohn.co.uk

Our lab has been focused on the immunological synapse (figure, below) and integrating this into the 3D tissue context.

MDustin-research

We have modeled this interaction by replacing the antigen presenting cell with a supported planar bilayer. Bilayers presenting MHC-peptide complexes and ICAM-1 to trigger a minimal immunological synapse.

This is an optically ideal system in which to visualize the supramolecular activation clusters. We have also applied this system to investigation of regulatory T cell defects in rheumatoid arthritis. Intravital microscopy has been a critical technology to understand how T cells interact with antigen presenting cells in vivoStudies in T cell zones, germinal centers, meninges and splenic red pulp have provided novel insights.

In the future, we will address how the immunological synapse contributes to tolerance and immunity using tools of systems biology and super-resolution imaging.

We will continue to use intravital microscopy to probe inflammatory mechanisms (see movie, below). A major focus will be the targeting therapies to the immunological synapse to cure chronic inflammatory diseases like rheumatoid arthritis.

ERC ADVANCED GRANT

Immunological synapse derived ectosomes in T cell effector function

THE IMMUNOLOGICAL SYNAPSE explained

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