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The Branches Scholarship is for the amount of $25,000 each year to
aid research into the causes and cures for arthritis.
This amount of money is raised entirely by the Arthritis NSW Branches holding
fund raising activities throughout the year making it possible for a researcher
to continue their work.
The 2007 Branches Scholarship for Research has been awarded to Dr Tanya Covic.
Dr Covic is from the School of Psychology at the University of Western Sydney, Westmead NSW. She will be doing research into the development of a precise and brief measurement of depression in Rheumatoid Arthritis to be used in rheumatology clinical settings.
In 2006 Elliott Taranto was the successful applicant
for the Branches Scholarship for research into RA.
He is a researcher based in the Centre for Inflammatory Diseases
at the Monash Institute of Medical Research, a part of Monash University
in
Melbourne. The information below was published by Elliott in spring 2006 in
Arthritis News:
Rheumatoid Arthritis (RA) is a destructive joint disease affecting 1-3%
of Australians causing significant disability and reduction in quality of
life. The disease is characterised by abnormal growth of the usually thin
membrane that lines the joints called the synovium. In RA the synovium grows
into a thick cellular mass
resulting in a joint that is swollen and inflamed. As RA progresses, the
cells of the synovium, called synoviocytes, invade and mediate the destruction
of cartilage and bone resulting in severe pain and joint deformity. Research has revealed that RA synoviocytes found at the site of cartilage
invasion display distinct biological properties from normal synoviocytes,
distinguishing them as key players in the development of RA. Experimentally,
these abnormal synoviocytes have been shown to escape the constraints of
normal cell growth and independently invade cartilage. Recent studies
suggest that the pro-inflammatory protein MIF,
(macrophage migration inhibitory factor), plays a pivotal role in RA.
It has been shown that MIF is over-expressed in RA patient synovial
fluid, blood serum and tissue. Moreover, MIF is also increased in animal
models of RA. MIF has been shown activate synoviocytes to stimulate
the release of cartilage and bone
degrading enzymes and other inflammatory substances in the joint. Blocking
MIF in models of arthritis results in a dramatic decrease in joint
inflammation and disease severity. In addition to promoting inflammation in
RA, we believe MIF is also able to stimulate the over-growth of synoviocytes.
We have demonstrated MIF can increase cell growth and even stop cells from dying off.
By contributing to the overgrowth of synovial tissue, factors such as
increased cell growth and reduced cell death are able to directly influence
the pathological outcome of RA. The mammalian cell cycle is a tightly
regulated process which governs the potential of a cell to undergo growth
or death. My research is concerned with examining the dysregulation of
specific genes involved in maintaining normal control of the cell cycle
which may be responsible for the altered growth observed in RA. Recently, we have shown MIF can change
the distribution of specific growth proteins within the cell. One such protein
is p21, which functions as both a positive and negative regulator of
cell growth. We have shown that in the presence of MIF, p21 moves to
the nucleus of a cell. This was correlated with an increase in cell
growth and a reduction in cell death.
These observations suggest that the change in the position of p21,
which is caused by MIF, contributes to synovial growth in RA by enhancing
cell survival and promoting cell division. We can now take advantage of
new technology to target these proteins, temporarily switching off
the function of specific cell cycle genes in human donor RA synoviocytes.
We aim to use these and other techniques to determine the precise functional
consequences of nuclear localised p21 protein in RA and additionally determine
the molecular mechanism through which MIF is capable of modulating
p21. These observations have important implications in terms of potential to
modulate the excessive growth and invasion displayed in RA synoviocytes and could alter our
understanding of RA.
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