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Sci. Signal., 19 January 2010
Vol. 3, Issue 105, p. cm2
[DOI: 10.1126/scisignal.3105cm2]


Interleukin-1β (IL-1β) Processing Pathway

Axel Weber1, Peter Wasiliew1, and Michael Kracht1*

1 Rudolf-Buchheim-Institute of Pharmacology, Justus-Liebig-University Giessen, 35392 Giessen, Germany

Abstract: The innate immune system senses molecular patterns from invading microorganisms. Once activated, it orchestrates the inflammatory response by secreting proinflammatory cytokines, such as interleukin-1 (IL-1)–type cytokines, in particular IL-1β. IL-1 mediates the expression of a vast array of genes involved in secondary inflammation. IL-1–responsive genes coordinate all aspects of local inflammation and also attract and activate cells of the adaptive immune system at sites of infection. Moreover, the innate immune system can also sense a wide range of nonmicrobial molecular patterns that represent danger or damage signals. These signals activate the NALP3-inflammasome pathway, which plays a central role in acute and chronic sterile inflammation. Here, we describe the essential components of the NALP3-inflammasome that control processing and release of IL-1β.

* Corresponding author. E-mail, Michael.Kracht{at}

Citation: A. Weber, P. Wasiliew, M. Kracht, Interleukin-1β (IL-1β) Processing Pathway. Sci. Signal. 3, cm2 (2010).

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