LEUCOCYTE BIOLOGY

WCHRI RESEARCH

 

 

 

STAFF

Laboratory Head

  Professor Heddy Zola
Ph: 08 8161 7015
Email: heddy.zola@adelaide.edu.au
   

Research Staff

  Ian Nicholson ian.nicholson@adelaide.edu.au
  Doreen Krumbiegel doreen.krumbiegel@adelaide.edu.au
  Randall Grose randall.grose@adelaide.edu.au
  Chris Mavrangelos chris.mavrangelos@adelaide.edu.au
  Debbie Millard debbie.millard@adelaide.edu.au
  Daniel Bird daniel.bird@adelaide.edu.au
   
 

Affiliate Research Staff

  A/Prof Simon Barry simon.barry@adelaide.edu.au
  A/Prof Peter Macardle peter.macardle@flinders.edu.au
  Dr George Wong
   

Students

  Pallave Dasari pallave.dasari@adelaide.edu.au
  Naomi Perry naomi.perry@adelaide.edu.au
     

GOALS

To improve our understanding of leucocyte function through studies of leucocyte surface molecules, and to exploit immunological molecules as diagnostic and therapeutic targets.

 

 

RESEARCH PROJECTS

1. Characterisation of leucocyte surface molecules

Leucocyte surface molecules are important diagnostic and therapeutic targets. Examples include CD20, a target for antibody-based treatment of leukaemia, and CD3, used to identify and count T cells to monitor HIV-associated acquired immune deficiency. In 2003, when many immunologists thought that the majority of leucocyte surface molecules were already known, we estimated that 80% of leucocyte surface molecules remained to be discovered.

 

We thus identified a major opportunity for discovery of new diagnostic and therapeutic targets. Our work in this area involves three related projects:

 

  • The Human Cell Differentiation Molecules Workshop, an international collaboration chaired by Heddy Zola, was completed in May 2006. The Workshop remains the primary international collaboration in this area (see www.hlda8.org), and we are guiding it through some major changes. A reference book containing detailed information on about 400 leucocyte surface molecules, compiled by members of the Laboratory, was published early in 2007. We are re-designing the web-site in order to make it the prime instrument for finding information on the molecules.

  • The protein profiling project in the CRC for Diagnostics, led jointly by WCHRI and La Trobe University scientists, used proteomics to identify hundreds of new leucocyte surface molecules. This work led to the assembly of a consortium to develop a new CRC, for Biomarker Translation. The application was successful in attracting $30million in Commonwealth funding and support from two major international companies. Much of 2007 was devoted to getting all the necessory agreements inplace, and Commonwealth funding has now started to flow so the actual studies are beginning.

  • In collaboration with Professor Robert Rush at Flinders University we hold a grant from the Premier's Science and Research Council to carry out similar studies on molecules shared by the immune and nervous systems.

     

  • 2. Applications of immunology in diagnosis and therapy

    In order to be able to apply newly-discovered molecules, we are developing a collaborative network with diagnostic and therapeutic companies, pathologists and scientists.

     

  • In collaboration with colleagues in the hospital's Haematology Department and Neonatial Intensive Care Unit, we published a method for detecting sepsis in new-born infants, and are engaged in a larger trial to establish the practical utility of this approach.

  • In collaboration with colleagues in the hospital's Haematology/Oncology Department, we published a method for distinguishing those cancer patients with febrile neutropenia resulting from infection from those whose symptoms result directly from their chemotherapy. Again, a larger trial is under way.

    The newly-funded CRC for Biomarker Translation will allow us to participate in much larger international projects aimed at diagnosis and treatment of major diseases, using antibodies.


    Chris Mavrangelos working with the Nitrogen Bomb. This is a device for isolating cell membranes. Cells are placed under very high pressure of nitrogen, which dissolves into the cell content. The pressure is released suddenly, leading to the generation of small bubbles on nitrogen, which burst the cell membrane. This is rather like divers getting the "bends". It allows us to produce pure membrane preparations, which are used for proteomic analysis.


    Last year Variety, the Children's Charity, helped us purchase a new mass spectrometer. The instrument has been installed at Flinders University, where it is looked after by Dr Tim Chataway (pictured working with the instrument). We use mass spectrometry in our studies of cell membrane proteins of the immune system.

  • Applied Nutrition
    Basic Nutrition
    Epithelial Biology
    Leucocyte Biology
    Leukaemia Biology
    Molecular Immunology
    Nutritional Immunology
    Wound Healing