Completed Infection & Immunity Cancer

Translational Applications of New Insights into Immunoreceptor Signalling

In plain English

AI plain-English summary

White blood cells carry surface receptors that, when triggered by the wrong targets, can spark autoimmune disease—and researchers are now designing antibody-based therapies to block that process. This matters because autoimmune diseases such as rheumatoid arthritis, type 1 diabetes, and multiple sclerosis arise when immune receptors mistakenly recognise the body’s own proteins as foreign and launch an attack. The fundamental gap in knowledge is exactly how these receptors reorganise on the cell surface to switch on immune pathways. Without that mechanistic understanding, designing drugs that precisely control the response remains guesswork. If the research succeeds, it could produce a new class of antibody-based therapies—receptor agonists that mimic natural triggering but are engineered to dampen rather than amplify harmful immune reactions. These would be drug-like molecules, not just research tools, and could offer more targeted treatments for autoimmune patients, reducing reliance on broad immunosuppressants that leave people vulnerable to infection. This project is primarily curiosity-driven fundamental science into immunoreceptor signalling. But the group is explicitly working toward translational applications: a clear mechanistic picture of how receptors trigger immune pathways is the necessary foundation for rational antibody design. Past fundamental discoveries in receptor biology have already yielded blockbuster antibody drugs; this work aims to extend that track record into autoimmune disease.

View original technical description
The aim of the T-cell biology group, in its translational work, is to develop new antibodies for use as therapies in autoimmune diseases. To achieve this we are working towards an understanding of the biology of the leukocyte cell surface, and to apply this understanding to the development of new drug-like antibodies. Leukocytes are white blood cells that are involved in defending the body against infectious disease and foreign materials found in the blood and lymphatic circulatory systems. The surface of leukocytes is covered in protein molecules, some of which are receptors that interact with fragments of specific foreign proteins either from infectious agents or other foreign materials, such as allergens, or, as in the case of some autoimmune diseases, to self-antigens. When the receptors interact with their target molecules, we propose that they undergo a reorganization that causes them to trigger immune response pathways. If these pathways are triggered inappropriately, then autoimmune disease can develop. The process of receptor triggering by native ligands can be mimicked with antibodies, which means that, when we fully understand the process, we may be in a position to design new antibody-based receptor agonists for use in the treatment of autoimmune diseases.

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Researchers

Simon Davis (Principal Investigator)

Related Research

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Systems approach to the analysis of T cell receptor signal transduction
Decision Making in Immune Cell Activation
Understanding the mechanisms of immune receptor signalling and how to target this process in disease

Original classification

Intramural

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