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Review
. 2014 Aug:29:29-37.
doi: 10.1016/j.coi.2014.03.006. Epub 2014 Apr 25.

Effect of aging on microRNAs and regulation of pathogen recognition receptors

Fabiola Olivieri  1 , Antonio Domenico Procopio  1 , Ruth R Montgomery  2
Affiliations
Review

Effect of aging on microRNAs and regulation of pathogen recognition receptors

Fabiola Olivieri et al. Curr Opin Immunol. 2014 Aug.

Abstract

Immunosenescence is the multifactorial age-associated immune deteriorization that leads to increased susceptibility to infections and decreased responses to vaccines. Recent studies have shown a fundamental role for microRNAs (miRNAs) in regulating immune responses, and nearly all the miRNAs involved in immune regulation show modulation during aging. Aging-associated miRNAs are largely negative regulators of the immune innate response and target central nodes of aging-associated networks, in particular, NF-κB, the downstream effector of TLR signals that leads to induction of proinflammatory responses. Multiple miRNAs have been reported to share similar regulatory activity. Here we review miRNA regulation of human innate immune recognition in aging, including both activation and resolution of inflammation, critical issues in detection, and areas of active investigation into our understanding of immunosenescence.

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Figures

Figure 1
Figure 1. Some of the most relevant miRs involved in restraining the activation of Pathogen Recognition Receptor (TLRs, NLRs, RLRs) and pro-inflammatory signalling pathways
Schematic representation of recognition receptors (TLRs, NLRs, RLRs) and signalling intermediates that are regulated by miRNAs.
See this image and copyright information in PMC

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