Christophe Dupre's research while affiliated with Harvard University and other places

Publications (4)

Article
Full-text available
All animals detect and integrate diverse environmental signals to mediate behavior. Cnidarians, including jellyfish and sea anemones, both detect and capture prey using stinging cells called nematocytes which fire a venom-covered barb via an unknown triggering mechanism. Here, we show that nematocytes from Nematostella vectensis use a specialized v...
Article
Full-text available
All animals detect and integrate diverse environmental signals to mediate behavior. Cnidarians, including jellyfish and sea anemones, both detect and capture prey using stinging cells called nematocytes which fire a venom-covered barb via an unknown triggering mechanism. Here, we show that nematocytes from Nematostella vectensis use a specialized v...
Article
Full-text available
All animals detect and integrate diverse environmental signals to mediate behavior. Cnidarians, including jellyfish and sea anemones, both detect and capture prey using stinging cells called nematocytes which fire a venom-covered barb via an unknown triggering mechanism. Here, we show that nematocytes from Nematostella vectensis use a specialized v...
Preprint
All animals detect and integrate diverse environmental signals to mediate behavior. Cnidarians, including jellyfish and sea anemones, both detect and capture prey using stinging cells called nematocytes which fire a venom-covered barb via an unknown triggering mechanism. Here, we show that nematocytes from Nematostella vectensis use a specialized v...

Citations

... Nematocytes are known to form synapses and act as afferents or effectors but can also operate cell-autonomously [25][26][27][28] . Thus, the observed networks might function in regulating collective behavior and coordinated activity of nematocyte populations 29 . In EGFP+ nematocytes, uorescence was detected throughout the cytoplasm and the sensory apparatus but was excluded from the capsule (Fig. 1b). ...
... Nematocytes are known to form synapses and act as afferents or effectors but can also operate cell-autonomously [31][32][33][34] . Thus, the observed networks might function in regulating collective behavior and coordinated activity of nematocyte populations 35 . In EGFP + nematocytes, fluorescence was detected throughout the cytoplasm and the sensory apparatus but was excluded from the capsule (Fig. 1b). ...
... From similar work in free-living Cnidaria, we hypothesized that nematocysts would exhibit reduced discharge in the presence of the trivalent cation Gd 3+ , as this would interfere with voltagegated calcium channels involved in the signal transduction step of nematocyst discharge (Gitter et al., 1994;Salleo et al., 1994;Weir et al., 2020). While voltage-gated calcium channels have been identified in nematocysts of free-living Cnidaria, it is not known if they are present in myxozoan nematocysts. ...