The abstract is read at the publisher; the summary is JClub's.
In Drosophila larvae, GPI-anchored Bero acts as a cis-ligand for AstC-R2 to create a PLCβ-dependent high-Ca2+ state in ABLK neurons that suppresses nociceptive sensory transmission.
- Why it matters: Internal osmotic state must be translated into different behavioral outputs from the same sensory cue, but how physiological state reshapes GPCR signaling is unclear.
- What they did: The study shows desiccation increases hemolymph osmolality, activating AstC-producing neurons that secrete AstC to oppose Bero–AstC-R2 signaling and reduce ABLK Ca2+ activity.
- The result: Dehydrated larvae then unlock avoidance of dry substrates and bias pupation toward humid environments, mitigating desiccation risk during the immobile pupal stage.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.