Self-reactivity was once seen as a potential characteristic of T cells that was eliminated by clonal selection to protect the host from autoimmune pathology. It is now understood that the T cell repertoire is in fact broadly self-reactive, even self-centered. The strength with which a T cell reacts to self ligands and the environmental context in which this reaction occurs influence almost every aspect of T cell biology, from development to differentiation to effector function. Here we highlight recent advances and discoveries that relate to T cell self-reactivity, with a particular emphasis on T cell antigen receptor (TCR) signaling thresholds.
|Original language||English (US)|
|Number of pages||9|
|State||Published - Sep 2014|
Bibliographical noteFunding Information:
Supported by the US National Institutes of Health (PO1 AI35296, RO1 AI088209 and R37 AI39560 to K.A.H., and R01 AI75168 and R37 AI38903 to S.C.J.).