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.
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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-meshheading:17538612-Animals,
pubmed-meshheading:17538612-Caenorhabditis elegans,
pubmed-meshheading:17538612-Caenorhabditis elegans Proteins,
pubmed-meshheading:17538612-Caloric Restriction,
pubmed-meshheading:17538612-Cell Respiration,
pubmed-meshheading:17538612-DNA-Binding Proteins,
pubmed-meshheading:17538612-Diet,
pubmed-meshheading:17538612-Head,
pubmed-meshheading:17538612-Longevity,
pubmed-meshheading:17538612-Models, Biological,
pubmed-meshheading:17538612-Neurons,
pubmed-meshheading:17538612-Oxygen Consumption,
pubmed-meshheading:17538612-Transcription Factors
|
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
|