Increased mitochondrial DNA (mtDNA) replication frequency is shown to lead to defects in maintenance of the nuclear genome due to reallocation of nucleotides to mitochondria, challenging the proposed direct role of mtDNA mutations as drivers of cellular and organismal ageing in mammalian progerias.
- Riikka H. Hämäläinen
- Juan C. Landoni
- Anu Suomalainen