Cited by 153Neurobiology and Insect Physiology ResearchIon Channels and ReceptorsSignaling Pathways in Disease

Negative Regulation and Gain Control of Sensory Neurons by the C. elegans Calcineurin TAX-6

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Kuhara, Atsushi, Inada, Hitoshi, Katsura, Isao, Mori, Ikue·2002·Neuron

Abstract

Animals sense and adapt to variable environments by regulating appropriate sensory signal transduction pathways. Here, we show that calcineurin plays a key role in regulating the gain of sensory neuron responsiveness across multiple modalities. C. elegans animals bearing a loss-of-function mutation in TAX-6, a calcineurin A subunit, exhibit pleiotropic abnormalities, including many aberrant sensory behaviors. The tax-6 mutant defect in thermosensation is consistent with hyperactivation of the AFD thermosensory neurons. Conversely, constitutive activation of TAX-6 causes a behavioral phenotype consistent with inactivation of AFD neurons. In olfactory neurons, the impaired olfactory response of tax-6 mutants to an AWC-sensed odorant is caused by hyperadaptation, which is suppressible by a mutation causing defective olfactory adaptation. Taken together, our results suggest that stimulus-evoked calcium entry activates calcineurin, which in turn negatively regulates multiple aspects of sensory signaling.

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Crossref · 10.1016/s0896-6273(02)00607-4

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  • C. elegans CFAP-20 participates in several sensory and physiological processes that depend on various types of non-motile cilia: gustatory plasticity, lifespan control, locomotion (roaming), and body size determination.

    “Yet, C. elegans CFAP-20 participates in several sensory and physiological processes that depend on various types of non-motile cilia: ability to sense and learn to avoid salt in the absence of food (gustatory plasticity); lifespan control; locomotion (roaming); and, body size determination40,42,47–51.”

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Authors
Kuhara, A., Inada, H., Katsura, I., & Mori, I.
Affiliations
  • Nagoya University (JP)
  • National Institute of Genetics (JP)
Corresponding author
Mori, Ikue
Venue
Neuron
Publisher
Elsevier BV
Published
2002-02
Volume
33
Issue
5
Pages
751-763
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2019816797
Cited by
153
References
57
Citations by year
2026: 2 · 2025: 7 · 2024: 3 · 2023: 4 · 2022: 3 · 2021: 4 · 2020: 10 · 2019: 4 · 2018: 2 · 2017: 6 · 2016: 4 · 2015: 5 · 2014: 5 · 2013: 9 · 2012: 8
FWCI
2.56
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministerio de Economía y Competitividad
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
calcineurin, sensory neurons, gain control, negative regulation, thermosensation, AFD neurons, olfactory adaptation, olfactory sensory neurons, AWC neurons, sensory transduction, calcium influx, Caenorhabditis elegans
MeSH terms
Pentanols, Amino Acid Sequence, Animals, Humans, Ion Channels, Locomotion, Models, Biological, Molecular Sequence Data, Nerve Tissue Proteins, Neurons, Afferent, Osmolar Concentration, Phenotype, Recombinant Fusion Proteins, Smell, Thermosensing, Signal Transduction, Sequence Alignment, Caenorhabditis elegans, Calcineurin, Protein Subunits, Caenorhabditis elegans Proteins, Animals, Genetically Modified, Transient Receptor Potential Channels, TRPV Cation Channels

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