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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7144
pubmed:dateCreated
2007-5-31
pubmed:abstractText
Dietary restriction extends lifespan and retards age-related disease in many species and profoundly alters endocrine function in mammals. However, no causal role of any hormonal signal in diet-restricted longevity has been demonstrated. Here we show that increased longevity of diet-restricted Caenorhabditis elegans requires the transcription factor gene skn-1 acting in the ASIs, a pair of neurons in the head. Dietary restriction activates skn-1 in these two neurons, which signals peripheral tissues to increase metabolic activity. These findings demonstrate that increased lifespan in a diet-restricted metazoan depends on cell non-autonomous signalling from central neuronal cells to non-neuronal body tissues, and suggest that the ASI neurons mediate diet-restriction-induced longevity by an endocrine mechanism.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1476-4687
pubmed:author
pubmed:issnType
Electronic
pubmed:day
31
pubmed:volume
447
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
545-9
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Two neurons mediate diet-restriction-induced longevity in C. elegans.
pubmed:affiliation
Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
pubmed:publicationType
Journal Article