Investigate the role of PAF and CD40 ligand in regulating the proinflammatory properties of platelets

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The cells of the blood play an important role in maintaining healthy blood vessels. We are interested in two types of blood cells, platelets and leukocytes, which together play a key role in vessel maintenance, by promoting blood clot formation and vessel wall repair following injury. However, while critical for normal blood vessel maintenance, these cells have also been demonstrated to contribute to disease states including atherosclerosis, thrombosis and inflammatory airway diseases. Underlying the function of both blood cell types is their ability to stick (or adhere) to each other. However the way in which they coordinate this adhesion is very complex. New information from our laboratory has demonstrated that the sticky behaviour of each cell type is spatially and temporally regulated, and may involve may factors both inside and outside of the cells themselves. Our studies aim to define the key components regulating the 'stickiness' of these blood cells, in order to undertand how they contribute to maintaining healthy vessel walls, but also how their stickiness may also contribute to the promotion of diseased vessels. This information will not only increase our knowledge of the factors that regulate blood clot formation, but may also assist in the development of new therapies to prevent and-or treat vessel disease.