Perspective

IL-23: A Cytokine That Acts on Memory T Cells

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Science's STKE  08 Jan 2002:
Vol. 2002, Issue 114, pp. pe1
DOI: 10.1126/stke.2002.114.pe1

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Abstract

The newly discovered cytokine interleukin (IL)-23 shares some in vivo functions with IL-12, including the activation of the transcription factor STAT4 (signal tranducer and activator of transcription-4). Indeed, the receptors for each appear to share one subunit, but also have at least one distinct subunit. Frucht discusses the similarities of IL-12 and IL-23 and the effects that distinguish one from the other. In contrast to IL-12, IL-23 appears to participate in the proliferative signal in memory T cells. More functions that distinguish IL-23 from IL-12 are likely to be uncovered as soon as the other component(s) of the IL-23 receptor are molecularly cloned and characterized.

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