Expanding Our Understanding of mtDNA Deletions

Cell Metab. 2016 Jul 12;24(1):3-4. doi: 10.1016/j.cmet.2016.06.024.


Clonal expansion of mtDNA deletions compromises mitochondrial function in human disease and aging, but how deleterious mtDNA genomes propagate has remained unclear. In this issue (Gitschlag et al., 2016) and in a recent Nature publication, C. elegans studies implicate the mitochondrial unfolded protein response (UPR(mt)) and offer mechanistic insights into this process.

Publication types

  • Comment

MeSH terms

  • Aging / genetics
  • Animals
  • Caenorhabditis elegans / genetics*
  • DNA, Mitochondrial / genetics*
  • Humans
  • Mitochondria / genetics
  • Unfolded Protein Response


  • DNA, Mitochondrial