Regulation of lifespan by sensory perception in Caenorhabditis elegans.

Authors: Apfeld J; Kenyon C

Abstract: Caenorhabditis elegans senses environmental signals through ciliated sensory neurons located primarily in sensory organs in the head and tail. Cilia function as sensory receptors, and mutants with defective sensory cilia have impaired sensory perception. Cilia are membrane-bound microtubule-based structures and in C. elegans are only found at the dendritic endings of sensory neurons. Here we show that mutations that cause defects in sensory cilia or their support cells, or in sensory signal transduction, extend lifespan. Our findings imply that sensory perception regulates the lifespan of this animal, and suggest that in nature, its lifespan may be regulated by environmental cues.

Keywords: Animals; Caenorhabditis elegans; *Caenorhabditis elegans Proteins; Cilia; Genes, Helminth; Germ Cells/physiology; Helminth Proteins/genetics/physiology; Larva; Longevity/genetics/*physiology; Mutation; Neurons, Afferent/*physiology; Receptor, Insulin/genetics/physiology; Sensory Deprivation; Transcription Factors/genetics/physiology
Journal: Nature
Volume: 402
Issue: 6763
Pages: 804-9
Date: Jan. 5, 2000
PMID: 10617200
Select reference article to upload


Citation:

Apfeld J, Kenyon C (1999) Regulation of lifespan by sensory perception in Caenorhabditis elegans. Nature 402: 804-9.


Study
Update (Admin) | Auto-Update

Comment on This Data Unit