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Nigel Killeen, D.Phil
The Determination of T Cell Fate
Selected Publications | Complete Publications


Research in our laboratory is aimed at understanding how T cells develop in the thymus and how they contribute to immune responses outside of it. A major focus concerns how T cells use cell surface molecules to detect and respond to changes in their environment. Members of the group employ a combination of genetics and cellular immunology to study issues such as the following:

• The molecular nature and biological function of signals delivered by the pre-T cell receptor during early thymocyte development;

• The mechanism by which CD4 positively regulates antigen recognition during thymocyte development and immune responses and the molecular basis of CD4-independent T helper cell development;

• The mechanism by which CD5 negatively regulates T cell responsiveness and the significance of this negative regulation for the formation of the T cell receptor repertoire;

• The function of the CD134 (OX40) molecule : this is a member of the Tumor Necrosis Receptor family that is only expressed on activated T lymphocytes during immune responses.

Selected Publications

Killeen, N and Littman, DR. Helper T cell development in the absence of CD4- p56lck association. Nature 364 (1993): 729-732.

Tarakhovsky, A, Kanner, SB, Hombach, I, Ledbetter, JA, Killeen, N and Rajewsky, K. A role for CD5 in TCR-mediated signal transduction and thymocyte selection. Science 269 (1995): 535-537.

Irving, BA, Alt, FW and Killeen, N. Thymocyte development in the absence of pre-T cell receptor extracellular domains. Science 280 (1998): 905-908.


information last updated February 2003

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