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NF-κB-dependent Luciferase Activation and Quantification of Gene Expression in Salmonella Infected Tissue Culture Cells
Published on: January 12, 2020
NF-κB: where did it come from and why?
Thomas D Gilmore1, Francis S Wolenski
1Department of Biology, Boston University, Boston, MA 02215, USA. gilmore@bu.edu
Immunological Reviews
|March 23, 2012
Summary
Nuclear factor κB (NF-κB) signaling pathways, crucial in vertebrates, are surprisingly conserved in invertebrates. Studying these invertebrates offers insights into the evolution of NF-κB and its role in immunity.
Area of Science:
- Evolutionary Biology
- Immunology
- Molecular Biology
Background:
- Research on nuclear factor κB (NF-κB) signaling has predominantly focused on vertebrates.
- Recent genomic data reveal NF-κB pathway components in diverse invertebrates, including simpler phyla.
Purpose of the Study:
- To review the evolution of core NF-κB signaling elements.
- To explore biological processes regulated by NF-κB in invertebrates.
- To speculate on the evolutionary origins and broader implications of NF-κB signaling.
Main Methods:
- Review of existing literature and genomic data.
- Comparative analysis of NF-κB pathway components across species.
- Inference and speculation based on current knowledge.
Main Results:
- Homologs of NF-κB transcription factors, IκB proteins, and IκB kinases are found in various invertebrates.
- Invertebrates possess genes for upstream signaling proteins like those in the Toll-like receptor pathway.
- The NF-κB pathway appears to be ancient and conserved across a wide range of animals.
Conclusions:
- The NF-κB signaling pathway has deep evolutionary roots extending beyond vertebrates.
- Studying invertebrate NF-κB can illuminate the pathway's origins and functions.
- Understanding invertebrate NF-κB may aid in managing ecologically and economically important species' responses to environmental changes.
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