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Reactive oxygen species and mitochondria: A nexus of cellular homeostasis

Open access
Dan Dunn, Joe, Alvarez, Luis AJ, Zhang, Xuezhi, Soldati, Thierry·2015·Redox Biology

Abstract

Reactive oxygen species (ROS) are integral components of multiple cellular pathways even though excessive or inappropriately localized ROS damage cells. ROS function as anti-microbial effector molecules and as signaling molecules that regulate such processes as NF-kB transcriptional activity, the production of DNA-based neutrophil extracellular traps (NETs), and autophagy. The main sources of cellular ROS are mitochondria and NADPH oxidases (NOXs). In contrast to NOX-generated ROS, ROS produced in the mitochondria (mtROS) were initially considered to be unwanted by-products of oxidative metabolism. Increasing evidence indicates that mtROS have been incorporated into signaling pathways including those regulating immune responses and autophagy. As metabolic hubs, mitochondria facilitate crosstalk between the metabolic state of the cell with these pathways. Mitochondria and ROS are thus a nexus of multiple pathways that determine the response of cells to disruptions in cellular homeostasis such as infection, sterile damage, and metabolic imbalance. In this review, we discuss the roles of mitochondria in the generation of ROS-derived anti-microbial effectors, the interplay of mitochondria and ROS with autophagy and the formation of DNA extracellular traps, and activation of the NLRP3 inflammasome by ROS and mitochondria.

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Metadata

Authors
Dan Dunn, J., Alvarez, L. A., Zhang, X., & Soldati, T.
Venue
Redox Biology
Publisher
Elsevier BV
Published
2015-12
Volume
6
Pages
472-485
ISSN
2213-2317 (ISSN-L)
OpenAlex
W1882356554
Cited by
1,203
References
184
FWCI
14.02
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Reactive oxygen species and mitochondria: A nexus of cellular homeostasis. https://app.cochat.ai/papers/10.1016/j.redox.2015.09.005
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Dan Dunn, J., Alvarez, L. A., Zhang, X., & Soldati, T. (2015). Reactive oxygen species and mitochondria: A nexus of cellular homeostasis. Redox Biology. https://doi.org/10.1016/j.redox.2015.09.005

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