Caenorhabditis elegans mitochondrial mutants as an investigative tool to study human neurodegenerative diseases associated with mitochondrial dysfunction

Natascia Ventura, Shane L. Rea

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

In humans, well over one hundred diseases have been linked to mitochondrial dysfunction and many of these are associated with neurodegeneration. At the root of most of these diseases lay ineffectual energy production, caused either by direct or indirect disruption to components of the mitochondrial electron transport chain. It is surprising then to learn that, in the nematode Caenorhabditis elegans, a collection of mutants which share disruptions in some of the same genes that cause mitochondrial pathogenesis in humans are in fact long-lived. Recently, we resolved this paradox by showing that the C. elegans "Mit mutants" only exhibit life extension in a defined window of mitochondrial dysfunction. Similar to humans, when mitochondrial dysfunction becomes too severe these mutants also exhibit pathogenic life reduction. We have proposed that life extension in the Mit mutants occurs as a by-product of compensatory processes specifically activated to maintain mitochondrial function. We have also proposed that similar kinds of processes may act to delay the symptomatic appearance in many human mitochondrial-associated disorders. In the present report, we describe our progress in using the Mit mutants as an investigative tool to study some of the processes potentially employed by human cells to offset pathological mitochondrial dysfunction.

Original languageEnglish (US)
Pages (from-to)584-595
Number of pages12
JournalBiotechnology Journal
Volume2
Issue number5
DOIs
StatePublished - May 1 2007

Keywords

  • Aging
  • Caenorhabditis elegans
  • Mit mutants
  • Mitochondria
  • Neurodegenerative disorder

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Molecular Medicine

Fingerprint Dive into the research topics of 'Caenorhabditis elegans mitochondrial mutants as an investigative tool to study human neurodegenerative diseases associated with mitochondrial dysfunction'. Together they form a unique fingerprint.

  • Cite this