Abstract
The caspase-1 protease is a core component of multiprotein inflammasome complexes, which play a critical role in regulating the secretion of mature, bioactive pro-inflammatory cytokines interleukin (IL)-1β and IL-18. The activity of caspase-1 is often measured indirectly, by monitoring cleavage of cellular caspase-1 substrates, processing of caspase-1 itself, or by quantifying cell death. Here we describe methods for eliciting caspase-1 activity in murine macrophages, via activation of the NLRP3, NAIP/NLRC4 or AIM2 inflammasomes. We then describe a simple fluorogenic assay for directly quantifying cellular caspase-1 activity.
Original language | English |
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Pages (from-to) | 163-176 |
Number of pages | 14 |
Journal | Methods in molecular biology (Clifton, N.J.) |
Volume | 1725 |
DOIs | |
Publication status | Published - 11 Jan 2018 |
Keywords
- Animals
- Apoptosis Regulatory Proteins/metabolism
- Bone Marrow/enzymology
- Caspase 1/metabolism
- Cytokines/metabolism
- Inflammasomes/immunology
- Macrophages/enzymology
- Mice