| First Author | Nishiyama S | Year | 2010 |
| Journal | Biochem Biophys Res Commun | Volume | 401 |
| Issue | 1 | Pages | 26-31 |
| PubMed ID | 20816751 | Mgi Jnum | J:165855 |
| Mgi Id | MGI:4838694 | Doi | 10.1016/j.bbrc.2010.08.143 |
| Citation | Nishiyama S, et al. (2010) Over-expression of Tfam improves the mitochondrial disease phenotypes in a mouse model system. Biochem Biophys Res Commun 401(1):26-31 |
| abstractText | The phenotypes of mitochondrial diseases caused by mutations in mitochondrial DNA (mtDNA) have been proposed to be strictly regulated by the proportion of wild-type and pathogenically mutated mtDNAs. More specifically, it is thought that the onset of the disease phenotype occurs when cells cannot maintain the proper mitochondrial function because of an over-abundance of pathological mtDNA. Therapies that cause a decrease in the pathogenic mtDNA population have been proposed as a treatment for mitochondrial diseases, but these therapies are difficult to apply in practice. In this report, we present a novel concept: to improve mitochondrial disease phenotypes via an increase in the absolute copy number of the wild-type mtDNA population in pathogenic cells even when the relative proportion of mtDNA genotypes remains unchanged. We have succeeded in ameliorating the typical symptoms of mitochondrial disease in a model mouse line by the over-expression of the mitochondrial transcription factor A (Tfam) followed by an increase of the mtDNA copy number. This new concept should lead to the development of a novel therapeutic treatment for mitochondrial diseases. |
