Reference - Detail
| RRC ID | 65192 |
|---|---|
| Author | Park J, Meisel JD, Kim DH. |
| Title | Immediate activation of chemosensory neuron gene expression by bacterial metabolites is selectively induced by distinct cyclic GMP-dependent pathways in Caenorhabditis elegans. |
| Journal | PLoS Genet |
| Abstract |
Dynamic gene expression in neurons shapes fundamental processes in the nervous systems of animals. However, how neuronal activation by different stimuli can lead to distinct transcriptional responses is not well understood. We have been studying how microbial metabolites modulate gene expression in chemosensory neurons of Caenorhabditis elegans. Considering the diverse environmental stimuli that can activate chemosensory neurons of C. elegans, we sought to understand how specific transcriptional responses can be generated in these neurons in response to distinct cues. We have focused on the mechanism of rapid (<6 min) and selective transcriptional induction of daf-7, a gene encoding a TGF-β ligand, in the ASJ chemosensory neurons in response to the pathogenic bacterium Pseudomonas aeruginosa. DAF-7 is required for the protective behavioral avoidance of P. aeruginosa by C. elegans. Here, we define the involvement of two distinct cyclic GMP (cGMP)-dependent pathways that are required for daf-7 expression in the ASJ neuron pair in response to P. aeruginosa. We show that a calcium-independent pathway dependent on the cGMP-dependent protein kinase G (PKG) EGL-4, and a canonical calcium-dependent signaling pathway dependent on the activity of a cyclic nucleotide-gated channel subunit CNG-2, function in parallel to activate rapid, selective transcription of daf-7 in response to P. aeruginosa metabolites. Our data suggest that fast, selective early transcription of neuronal genes require PKG in shaping responses to distinct microbial stimuli in a pair of C. elegans chemosensory neurons. |
| Volume | 16(8) |
| Pages | e1008505 |
| Published | 2020-8-1 |
| DOI | 10.1371/journal.pgen.1008505 |
| PII | PGENETICS-D-19-01805 |
| PMID | 32776934 |
| PMC | PMC7416920 |
| MeSH | Animals Caenorhabditis elegans Caenorhabditis elegans Proteins / genetics* Caenorhabditis elegans Proteins / metabolism Calcium Signaling Chemoreceptor Cells / metabolism* Cyclic GMP / metabolism* Cyclic GMP-Dependent Protein Kinases / metabolism Cyclic Nucleotide-Gated Cation Channels / metabolism Pseudomonas aeruginosa / metabolism* Transcriptional Activation Transforming Growth Factor beta / genetics* Transforming Growth Factor beta / metabolism |
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| The most frequently cited source | X(Twitter) |
| Total number of mentions | 3 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| C.elegans | tm4267 tm3098 |