Our Research Focus

T Cell Immunosurveillance

A key aspect of immunology is understanding what immune cells sense by virtue of their unique immune receptors. We have contributed to multiple studies identifying ligands for human immune receptors, including circulating and tissue resident γδ T cell populations. We study these receptor interactions to reveal the antitumour roles of immune cells. 

Structural Immunology

To comprehensively understand how immune receptor recognition occurs, we require molecular imaging of the receptors in complex. We use structural immunology techniques including cryo-electron microscopy to reveal the atomic basis of how receptor recognition proceeds. Our studies have revealed that γδ T cells recognise stress antigens in a manner akin to antibodies, rewriting our understanding of these T cells. We study these antigen-γδ T cell receptor interactions with a view to elucidating their functions in cancers and designing novel therapeutics.

Immune Synapse Formation

The master regulator of lymphocyte activation is the formation of an immune synapse. We have adopted advanced microscopy techniques including single molecule imaging to study how individual receptors coalesce to form an immune synapse and trigger cellular activation. We also work to define the molecular basis for how receptors internalise extracellular cues to evoke cellular activation. These experiments have been highly revealing in how these cells become activated in aberrance, allowing us to work with biotech partners to investigate immune modulators. 

Recent Publications

Fast facts

Immunosurveillance describes the processes by which immune cells search for, and recognise, infections, pre-cancerous and cancerous cells in the body.

White blood cells comprise of B cells, T cells and gd T cells. These three cells each have unique virtues that combine to fight off infections and cancers.

An immune receptor is a protein sensor, typically on the cell membrane of immune cells. These receptors help the cells to sense infections and trigger immune responses.

NATURE COMMUNICATIONS

γδ T cell receptor recognition of CD1d in a lipid-independent manner

DOI: 10.1038/s41467-025-67653-0

29 December 2025

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Nature

Structure of a fully assembled γδ T cell antigen receptor

DOI: 10.1038/s41586-024-07920-0

14 August 2024

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Nature Communications

Direct recognition of an intact foreign protein by an αβ T cell receptor

DOI: 10.1038/s41467-024-51897-3

11 October 2024

View abstract

Our team

  • Dr Benjamin Stephen Gully – Head, Immunosurveillance Laboratory
  • Sachith Dilshan Gunasinghe – Postdoctoral Research Fellow
  • Daniel Arsovski – Postdoctoral Research Fellow
  • Chhon Ling Sok (Monash University Based) – PhD Student
  • Liam Rashleigh (Monash University Based) – PhD Student
  • Ellen Mann (Warwick University Based) – PhD Student
  • Vinayak Annapure (PFMCC Based) – PhD student
  • Sara Novcic – Masters Student

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