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Regulation of the cellular heat shock response in Caenorhabditis elegans by thermosensory neurons
Journal article   Peer reviewed

Regulation of the cellular heat shock response in Caenorhabditis elegans by thermosensory neurons

Veena Prahlad, Tyler Cornelius and Richard I Morimoto
Science (American Association for the Advancement of Science), Vol.320(5877), pp.811-814
05/09/2008
DOI: 10.1126/science.1156093
PMCID: PMC3429343
PMID: 18467592

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Abstract

Temperature pervasively affects all cellular processes. In response to a rapid increase in temperature, all cells undergo a heat shock response, an ancient and highly conserved program of stress-inducible gene expression, to reestablish cellular homeostasis. In isolated cells, the heat shock response is initiated by the presence of misfolded proteins and therefore thought to be cell-autonomous. In contrast, we show that within the metazoan Caenorhabditis elegans, the heat shock response of somatic cells is not cell-autonomous but rather depends on the thermosensory neuron, AFD, which senses ambient temperature and regulates temperature-dependent behavior. We propose a model whereby this loss of cell autonomy serves to integrate behavioral, metabolic, and stress-related responses to establish an organismal response to environmental change.
Transcription Factors - physiology Caenorhabditis elegans - genetics Thermosensing - physiology Genes, Helminth Pheromones - physiology Transcription Factors - genetics Heat-Shock Response - physiology Neurons, Afferent - physiology Protein Folding Heat-Shock Response - genetics Caenorhabditis elegans - physiology Heat-Shock Proteins - genetics Animals Caenorhabditis elegans - cytology Caenorhabditis elegans Proteins - physiology Models, Neurological Mutation Heat-Shock Proteins - physiology Caenorhabditis elegans Proteins - genetics

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