Title

The mitochondrial UPR: mechanisms, physiological functions and implications in ageing

UMMS Affiliation

Department of Molecular, Cell and Cancer Biology; UMass Metabolic Network

Publication Date

11-22-2017

Document Type

Article

Disciplines

Biochemistry | Cell Biology | Cellular and Molecular Physiology | Molecular Biology

Abstract

Mitochondrial function declines during ageing owing to the accumulation of deleterious mitochondrial genomes and damage resulting from the localized generation of reactive oxygen species, both of which are often exacerbated in diseases such as Parkinson disease. Cells have several mechanisms to assess mitochondrial function and activate a transcriptional response known as the mitochondrial unfolded protein response (UPR(mt)) when mitochondrial integrity and function are impaired. The UPR(mt) promotes cell survival and the recovery of the mitochondrial network to ensure optimal cellular function. Recent insights into the regulation, mechanisms and functions of the UPR(mt) have uncovered important and complex links to ageing and ageing-associated diseases. In this Review, we discuss the signal transduction mechanisms that regulate the UPR(mt) and the physiological consequences of its activation that affect cellular and organismal health during ageing.

Keywords

Ageing, Mitochondria, Mitophagy, Stress signalling

DOI of Published Version

10.1038/nrm.2017.110

Source

Nat Rev Mol Cell Biol. 2017 Nov 22. pii: nrm.2017.110. doi: 10.1038/nrm.2017.110. Link to article on publisher's site

Journal/Book/Conference Title

Nature reviews. Molecular cell biology

Related Resources

Link to Article in PubMed

PubMed ID

29165426

Share

COinS