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Screening for novel endogenous inflammatory stimuli using the secreted embryonic alkaline phosphatase NF-κB reporter assay

Zuliani-Alvarez, Lorena; Piccinini, Anna M.; Midwood, Kim S.

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Authors

Lorena Zuliani-Alvarez

Kim S. Midwood



Abstract

An immune response can be activated by pathogenic stimuli, as well as endogenous danger signals, triggering the activation of pattern recognition receptors and initiating signalling cascades that lead to inflammation. This method uses THP1-Blue™ cells, a human monocytic cell line which contains an embryonic alkaline phosphatase reporter gene allowing the detection of NF-κBinduced transcriptional activation. We validated this protocol by assessing NF-κB activation after stimulation of toll-like receptor 4 (TLR4) by two different agonists: lipopolysaccharide (LPS), derived from the cell wall of Gram negative bacteria, and tenascin-C, an extracellular matrix protein whose expression is induced upon tissue injury. We then used this protocol to screen for potential new endogenous TLR4 agonists, but this method can also be used as a quick, economical and reliable means to assay the activity of other inflammatory stimuli resulting in TLR-dependent NF-κB activation.

Citation

Zuliani-Alvarez, L., Piccinini, A. M., & Midwood, K. S. (2017). Screening for novel endogenous inflammatory stimuli using the secreted embryonic alkaline phosphatase NF-κB reporter assay. Bio-protocol, 7(7), https://doi.org/10.21769/BioProtoc.2220

Journal Article Type Article
Acceptance Date Feb 26, 2017
Online Publication Date Apr 5, 2017
Publication Date May 4, 2017
Deposit Date May 17, 2017
Publicly Available Date May 17, 2017
Journal Bio-protocol
Electronic ISSN 2331-8325
Publisher Bio-Protocol
Peer Reviewed Peer Reviewed
Volume 7
Issue 7
DOI https://doi.org/10.21769/BioProtoc.2220
Keywords Innate immunity; TLR4; Tenascin-C; LPS; THP1-Blue™ cells; NF-κB reporter
Public URL https://nottingham-repository.worktribe.com/output/859208
Publisher URL http://www.bio-protocol.org/e2220
Contract Date May 17, 2017

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