ArticlePloS one2023
Drosophila pain sensitization and modulation unveiled by a novel pain model and analgesic drugs.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 14 citations in OpenAlex.
- Zoledronic acid produces analgesia by inhibiting the transient receptor potential vanilloid 1 (TRPV1) channel.Pain reports · 2026Article
- Sodium valproate and gabapentin reduce the seizure-like behavior induced by pentylenetetrazol and mechanical stress in Drosophila melanogaster: sex influence on behavioral responses.Journal of neural transmission (Vienna, Austria : 1996) · 2026Article
- Towards Bioethical and Functional Standards in the Slaughter Methods of Edible Insects: A Narrative Review.Insects · 2026Review
- Capsaicin responses in Drosophila: Exploring the possibility of establishing a new Non-TRPV1 model.Biochemistry and biophysics reports · 2026Review
- The exploration of consciousness in insects.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025Review
- Ascending nociceptive pathways drive rapid escape and sustained avoidance in adultbioRxiv : the preprint server for biology · 2025Article
- Capsaicin as a Microbiome Modulator: Metabolic Interactions and Implications for Host Health.Metabolites · 2025Review
- Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In mammals, pain is regulated by the combination of an ascending stimulating and descending inhibitory pain pathway. It remains an intriguing question whether such pain pathways are of ancient origin and conserved in invertebrates. Here we report a new Drosophila pain model and use it to elucidate the pain pathways present in flies. The model employs transgenic flies expressing the human capsaicin receptor TRPV1 in sensory nociceptor neurons, which innervate the whole fly body, including the mouth. Upon capsaicin sipping, the flies abruptly displayed pain-related behaviors such as running away, scurrying around, rubbing vigorously, and pulling at their mouth parts, suggesting that capsaicin stimulated nociceptors in the mouth via activating TRPV1. When reared on capsaicin-containing food, the animals died of starvation, demonstrating the degree of pain experienced. This death rate was reduced by treatment both with NSAIDs and gabapentin, analgesics that inhibit the sensitized ascending pain pathway, and with antidepressants, GABAergic agonists, and morphine, analgesics that strengthen the descending inhibitory pathway. Our results suggest Drosophila to possess intricate pain sensitization and modulation mechanisms similar to mammals, and we propose that this simple, non-invasive feeding assay has utility for high-throughput evaluation and screening of analgesic compounds.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.