Abstract
The innate immune system is a dynamic and complex network for recognizing and responding to cellular insult or tissue damage after infection or injury. The primary effector mechanism of innate immunity is the generation of acute and chronic inflammatory responses through regulation of the processing and activation of proinflammatory caspases, particularly caspase 1, and cytokines, most notably IL-1β and IL-18. Inflammasomes, cytosolic multi-protein complexes that function as molecular scaffolds for caspase activation, have recently emerged as the pivotal mechanism by which host innate immune and inflammatory responses are regulated. In this review, we investigate the mechanisms by which inflammasomes are modulated, both by endogenous host systems and by microbial pathogens.
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Abbreviations
- ASC:
-
apoptosis-associated speck-like protein containing CARD
- ATP:
-
adenosine triphosphate
- CAPS:
-
cryopyrin-associated periodic syndromes
- CARD:
-
caspase activation and recruitment domain
- caspase:
-
cysteine-aspartate proteases
- COP:
-
CARD-only protein
- DDF:
-
death domain fold
- FCAS:
-
familial cold autoinflammatory syndrome
- IL:
-
interleukin
- IL-1R:
-
IL-1 receptor
- IFN:
-
interferon
- IPAF:
-
ICE-protease activating factor
- IRF:
-
interferon response factor
- LPS:
-
lipopolysaccharide
- LRR:
-
leucine-rich repeat region
- MDP:
-
muramyl dipeptides
- MWS:
-
Muckle–Wells syndrome
- NACHT:
-
NAIP, C2TA, HET-E, and TP1 domain
- NALP:
-
NACHT-, LRR- and PYD-containing protein
- NF-κB:
-
nuclear transcription factor κB
- NLR:
-
NOD-like receptor
- NOD:
-
nucleotide binding and oligomerization domain
- NOMID:
-
neonatal-onset multisystem inflammatory disease
- p38MAPK:
-
p38 mitogen-activated protein kinase
- PAMP:
-
pathogen-associated molecular pattern
- POP:
-
PYD-only protein
- PRR:
-
pathogen recognition receptor
- PYD:
-
PYRIN domain
- TIR:
-
Toll/interleukin-1 receptor
- tlpA:
-
TIR-like protein A
- TLR:
-
Toll-like receptor
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Johnston, J.B., Rahman, M.M. & McFadden, G. Strategies that modulate inflammasomes—insights from host–pathogen interactions. Semin Immunopathol 29, 261–274 (2007). https://doi.org/10.1007/s00281-007-0080-5
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DOI: https://doi.org/10.1007/s00281-007-0080-5