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2018 ; 9
(ä): 225
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Role of Signaling Molecules in Mitochondrial Stress Response
#MMPMID30042784
Hill S
; Sataranatarajan K
; Van Remmen H
Front Genet
2018[]; 9
(ä): 225
PMID30042784
show ga
Mitochondria are established essential regulators of cellular function and
metabolism. Mitochondria regulate redox homeostasis, maintain energy (ATP)
production through oxidative phosphorylation, buffer calcium levels, and control
cell death through apoptosis. In addition to these critical cell functions,
recent evidence supports a signaling role for mitochondria. For example, studies
over the past few years have established that peptides released from the
mitochondria mediate stress responses such as the mitochondrial unfolded protein
response (UPR(MT)) through signaling to the nucleus. Mitochondrial damage or
danger associated molecular patterns (DAMPs) provide a link between mitochondria,
inflammation and inflammatory disease processes. Additionally, a new class of
peptides generated by the mitochondria affords protection against age-related
diseases in mammals. In this short review, we highlight the role of mitochondrial
signaling and regulation of cellular activities through the mitochondrial UPR(MT)
that signals to the nucleus to affect homeostatic responses, DAMPs, and
mitochondrial derived peptides.