Chen, Changchun; Itakura, Eisuke; Nelson, Geoffrey M.; Sheng, Ming; Laurent, Patrick; Fenk, Lorenz A.; Butcher, Rebecca A.; Hegde, Ramanujan S.; de Bono, MarioIST Austria
Interleukin-17 (IL-17) is a major pro-inflammatory cytokine: it mediates responses to pathogens or tissue damage, and drives autoimmune diseases. Little is known about its role in the nervous system. Here we show that IL-17 has neuromodulator-like properties in Caenorhabditis elegans. IL-17 can act directly on neurons to alter their response properties and contribution to behaviour. Using unbiased genetic screens, we delineate an IL-17 signalling pathway and show that it acts in the RMG hub interneurons. Disrupting IL-17 signalling reduces RMG responsiveness to input from oxygen sensors, and renders sustained escape from 21% oxygen transient and contingent on additional stimuli. Over-activating IL-17 receptors abnormally heightens responses to 21% oxygen in RMG neurons and whole animals. IL-17 deficiency can be bypassed by optogenetic stimulation of RMG. Inducing IL-17 expression in adults can rescue mutant defects within 6 h. These findings reveal a non-immunological role of IL-17 modulating circuit function and behaviour.
Chen C, Itakura E, Nelson GM, et al. IL-17 is a neuromodulator of Caenorhabditis elegans sensory responses. Nature. 2017;542(7639):43-48. doi:10.1038/nature20818
Chen, C., Itakura, E., Nelson, G. M., Sheng, M., Laurent, P., Fenk, L. A., … de Bono, M. (2017). IL-17 is a neuromodulator of Caenorhabditis elegans sensory responses. Nature. Springer Nature. https://doi.org/10.1038/nature20818
Chen, Changchun, Eisuke Itakura, Geoffrey M. Nelson, Ming Sheng, Patrick Laurent, Lorenz A. Fenk, Rebecca A. Butcher, Ramanujan S. Hegde, and Mario de Bono. “IL-17 Is a Neuromodulator of Caenorhabditis Elegans Sensory Responses.” Nature. Springer Nature, 2017. https://doi.org/10.1038/nature20818.
C. Chen et al., “IL-17 is a neuromodulator of Caenorhabditis elegans sensory responses,” Nature, vol. 542, no. 7639. Springer Nature, pp. 43–48, 2017.
Chen C, Itakura E, Nelson GM, Sheng M, Laurent P, Fenk LA, Butcher RA, Hegde RS, de Bono M. 2017. IL-17 is a neuromodulator of Caenorhabditis elegans sensory responses. Nature. 542(7639), 43–48.
Chen, Changchun, et al. “IL-17 Is a Neuromodulator of Caenorhabditis Elegans Sensory Responses.” Nature, vol. 542, no. 7639, Springer Nature, 2017, pp. 43–48, doi:10.1038/nature20818.