Sensory integration and neuromodulatory feedback facilitate Drosophila mechanonociceptive behavior

Hu C, Petersen M, Hoyer N, Spitzweck B, Tenedini F, Wang D, Gruschka A, Burchardt LS, Szpotowicz E, Schweizer M, Guntur AR, Yang CH, Soba P (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Nature Neuroscience Nature Publishing Group

Book Volume: 20

Pages Range: 1085-1095

Journal Issue: 8

DOI: 10.1038/nn.4580

Abstract

Nociception is an evolutionarily conserved mechanism to encode and process harmful environmental stimuli. Like most animals, Drosophila melanogaster larvae respond to a variety of nociceptive stimuli, including noxious touch and temperature, with stereotyped escape responses through activation of multimodal nociceptors. How behavioral responses to these different modalities are processed and integrated by the downstream network remains poorly understood. By combining trans-synaptic labeling, ultrastructural analysis, calcium imaging, optogenetics and behavioral analyses, we uncovered a circuit specific for mechanonociception but not thermonociception. Notably, integration of mechanosensory input from innocuous and nociceptive sensory neurons is required for robust mechanonociceptive responses. We further show that neurons integrating mechanosensory input facilitate primary nociceptive output by releasing short neuropeptide F, the Drosophila neuropeptide Y homolog. Our findings unveil how integration of somatosensory input and neuropeptide-mediated modulation can produce robust modality-specific escape behavior.

Authors with CRIS profile

Peter Soba

Involved external institutions

Universität Hamburg (UHH) DE Germany (DE) Duke University US United States (USA) (US)

How to cite

APA:

Hu, C., Petersen, M., Hoyer, N., Spitzweck, B., Tenedini, F., Wang, D.,... Soba, P. (2017). Sensory integration and neuromodulatory feedback facilitate Drosophila mechanonociceptive behavior. Nature Neuroscience, 20(8), 1085-1095. https://doi.org/10.1038/nn.4580

MLA:

Hu, Chun, et al. "Sensory integration and neuromodulatory feedback facilitate Drosophila mechanonociceptive behavior." Nature Neuroscience 20.8 (2017): 1085-1095.

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