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PAMPs and DAMPs: signal 0s that spur autophagy and immunity.

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Date
2012-09
Authors
Tang, Daolin
Kang, Rui
Coyne, Carolyn B
Zeh, Herbert J
Lotze, Michael T
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Abstract
Pathogen-associated molecular pattern molecules (PAMPs) are derived from microorganisms and recognized by pattern recognition receptor (PRR)-bearing cells of the innate immune system as well as many epithelial cells. In contrast, damage-associated molecular pattern molecules (DAMPs) are cell-derived and initiate and perpetuate immunity in response to trauma, ischemia, and tissue damage, either in the absence or presence of pathogenic infection. Most PAMPs and DAMPs serve as so-called 'Signal 0s' that bind specific receptors [Toll-like receptors, NOD-like receptors, RIG-I-like receptors, AIM2-like receptors, and the receptor for advanced glycation end products (RAGE)] to promote autophagy. Autophagy, a conserved lysosomal degradation pathway, is a cell survival mechanism invoked in response to environmental and cellular stress. Autophagy is inferred to have been present in the last common eukaryotic ancestor and only to have been lost by some obligatory intracellular parasites. As such, autophagy represents a unifying biology, subserving survival and the earliest host defense strategies, predating apoptosis, within eukaryotes. Here, we review recent advances in our understanding of autophagic molecular mechanisms and functions in emergent immunity.
Type
Journal article
Subject
Animals
Humans
Inflammation
Signal Transduction
Apoptosis
Immunity
Autophagy
Receptors, Pattern Recognition
Toll-Like Receptors
Immunity, Innate
Infections
Permalink
https://hdl.handle.net/10161/22596
Published Version (Please cite this version)
10.1111/j.1600-065x.2012.01146.x
Publication Info
Tang, Daolin; Kang, Rui; Coyne, Carolyn B; Zeh, Herbert J; & Lotze, Michael T (2012). PAMPs and DAMPs: signal 0s that spur autophagy and immunity. Immunological reviews, 249(1). pp. 158-175. 10.1111/j.1600-065x.2012.01146.x. Retrieved from https://hdl.handle.net/10161/22596.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Carolyn Coyne

Professor of Molecular Genetics and Microbiology
We study the pathways by which microorganisms cross cellular barriers and the mechanisms by which these barriers restrict microbial infections. Our studies primarily focus on the epithelium that lines the gastrointestinal tract and on placental trophoblasts, the cells that comprise a key cellular barrier of the human placenta. Our work is highly multidisciplinary and encompasses aspects of cell biology, immunology, and microbiology. Our long-term goals are to identify pathogen- and host-spe
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