SEROTONIN DEFICIENCY FROM CONSTITUTIVE SKN-1 ACTIVATION DRIVES PATHOGEN APATHY
2024
Serotonin Deficiency and Pathogen Apathy in C. elegans
Sample size: 12
publication
Evidence: moderate
Author Information
Author(s): Weathers Brandy, Nair Tripti, Curran Sean, Nhan James, Sthur Nicole
Primary Institution: University of Southern California
Hypothesis
Constitutive activation of SKN-1 leads to serotonin deficiency, which drives apathy towards pathogens.
Conclusion
The study shows that SKN-1 activation results in reduced serotonin production, causing C. elegans to exhibit apathy towards pathogens.
Supporting Evidence
- SKN-1 activation leads to apathy-like behavior in C. elegans when exposed to pathogens.
- Exogenous serotonin treatment reduces the apathy phenotype in SKN-1 activated worms.
- SKN-1 is a homolog of human Nrf2, which is involved in immune responses.
Takeaway
When worms have a certain gene turned on, they stop caring about avoiding germs, but giving them serotonin helps them react normally again.
Methodology
The study involved exposing C. elegans to the pathogen Pseudomonas aeruginosa and observing their behavior and serotonin levels.
Participant Demographics
C. elegans (a type of worm)
Digital Object Identifier (DOI)
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