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Published on: March 1, 2011
Interleukin-1 signal transduction
J L Bankers-Fulbright1, K R Kalli, D J McKean
1Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA.
Insights
Interleukin-1 (IL-1) is an inflammatory cytokine with diverse cellular effects. This review clarifies IL-1 receptor signaling pathways and links them to biological responses.
Area of Science:
- Immunology
- Cell Biology
- Molecular Biology
Background:
- Interleukin-1 (IL-1) is a key inflammatory cytokine.
- IL-1 influences numerous cell types and activates many signal transduction pathways.
- Current research often lacks clarity on the biological significance of IL-1 signaling events.
Purpose of the Study:
- To review Interleukin-1 (IL-1) receptor signaling.
- To correlate identified IL-1-induced signals with specific biological responses.
Main Methods:
- Literature review of studies on IL-1 receptor signaling.
- Analysis of associations between IL-1 signaling pathways and cellular functions.
Main Results:
- IL-1 receptor activation triggers a wide array of intracellular signaling cascades.
- Many signaling events downstream of IL-1 receptors have been identified.
- Connecting these signals to specific biological outcomes remains a challenge.
Conclusions:
- A comprehensive understanding of IL-1 receptor signaling is crucial.
- Linking signaling events to biological responses will advance knowledge of IL-1's role.
- Further research is needed to elucidate the functional significance of IL-1-mediated signaling.
Abstract:
Interleukin-1 (IL-1) is primarily an inflammatory cytokine, although it is capable of mediating a wide variety of effects on many different cell types. Nearly every known signal transduction pathway has been reported to be activated in response to IL-1. However, the significance of many of these signaling events is unclear, due to the use of different and sometimes unique cell lines in studying IL-1-initiated signal transduction. Complicating matters further is the lack of association in many studies between identified IL-1-induced signals and subsequent biological responses. In this article, we review what is known about IL-1 receptor signaling and, whenever possible, correlate signaling events to biological responses.
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