Danger-Associated Molecular Patterns Derived From the Extracellular Matrix Provide Temporal Control of Innate Immunity

2018/01/01 by Charles W. Frevert, Jessica L Felgenhauer, Jessica Felgenhauer +4 · 26 citations
Immunology and Microbiology · Biochemistry, Genetics and Molecular Biology · #Immune Response and Inflammation #Inflammasome and immune disorders #Neutrophil, Myeloperoxidase and Oxidative Mechanisms

paper · pdf · doi:10.1369/0022155417740880

Abstract

It is evident that components of the extracellular matrix (ECM) act as danger-associated molecular patterns (DAMPs) through direct interactions with pattern recognition receptors (PRRs) including Toll-like receptors (TLRs) and inflammasomes. Through these interactions, ECM-derived DAMPs autonomously trigger sterile inflammation or prolong pathogen-induced responses through the production of proinflammatory mediators and the recruitment of leukocytes to sites of injury and infection. Recent research, however, suggests that ECM-derived DAMPs are additionally involved in the resolution and fine-tuning of inflammation by orchestrating the production of anti-inflammatory mediators that are required for the resolution of tissue inflammation and the transition to acquired immunity. Thus, in this review, we discuss the current knowledge of the interplay between ECM-derived DAMPs and the innate immune signaling pathways that are activated to provide temporal control of innate immunity.

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