A novel viral modifier of TNF family receptor signalling: Elucidation of mechanisms of action

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Over millions of years, viruses have evolved a great number of strategies to allow them to subvert the effectiveness of the host response. We have discovered that one of these viral strategies seems designed to block the synthesis of an important anti-viral factor, called tumour necrosis factor. In this project, we aim to work out how the viral factor blocks tumour necrosis factor production inside the cell, at the level of the molecules involved. The second aspect of this project concerns the identification of the types of cells and responses which the viral factor acts upon to manipulate the host response. We reason that this information will improve our understanding of how tumour necrosis factor production is regulated and the significance of this type of response in virus infection and physiology, more generally. The application of this research will be to aid the design of better drugs for the treatment of many conditions where tumour necrosis factor production contributes significantly to pathology, eg rheumatoid arthritis and autoimmunity. In some conditions, it may be a therapeutic advantage to selectively turn on tumour necrosis factor, eg for treatment of infections or cancer.