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Novel IL-12 family members shed light on the orchestration of Th1 responses

Open access
Brombacher, F·2003·Trends in Immunology

Abstract

Interleukin-12 (IL-12), which is composed of a p35 and a p40 subunit, is a proinflammatory natural-killer (NK) cell-stimulating, Th1-inducing and Th1-maintaining cytokine, which promotes cell-mediated immunity. On activation, heterodimeric IL-12 is found in small amounts, whereas free p40 is produced in excess. Besides IL-12, other p40-dependent molecules exist that orchestrate Th1 responses. Homodimeric p40 can act as an IL-12 antagonist by competing for its receptor. Recent data also reveal potential immunostimulatory functions of p40. In addition, p40 can be covalently linked to a p35-related protein p19. This heterodimer is known as IL-23 and has activities on memory T cells. Finally, IL-27, the latest addition to this family, is a heterodimer composed of the p40-related protein EBI3 (Epstein–Barr virus-induced gene 3) and the p35-related protein p28. IL-27 is involved in early Th1 initiation.

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Metadata

Authors
Brombacher, F.
Venue
Trends in Immunology
Publisher
Elsevier BV
Published
2003-04
Volume
24
Issue
4
Pages
207-212
ISSN
1471-4906 (ISSN-L)
OpenAlex
W1964909764
Cited by
269
References
1
FWCI
15.22
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Novel IL-12 family members shed light on the orchestration of Th1 responses. https://app.cochat.ai/papers/10.1016/s1471-4906(03)00067-x
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Brombacher, F. (2003). Novel IL-12 family members shed light on the orchestration of Th1 responses. Trends in Immunology. https://doi.org/10.1016/s1471-4906(03)00067-x

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