TY - JOUR A1 - Wegener, Christian A1 - Chen, Jiangtian T1 - Allatostatin A signalling: progress and new challenges from a paradigmatic pleiotropic invertebrate neuropeptide family JF - Frontiers in Physiology N2 - Neuropeptides have gained broad attraction in insect neuroscience and physiology, as new genetic tools are increasingly uncovering their wide-ranging pleiotropic functions with high cellular resolution. Allatostatin A (AstA) peptides constitute one of the best studied insect neuropeptide families. In insects and other panarthropods, AstA peptides qualify as brain-gut peptides and have regained attention with the discovery of their role in regulating feeding, growth, activity/sleep and learning. AstA receptor homologs are found throughout the protostomia and group with vertebrate somatostatin/galanin/kisspeptin receptors. In this review, we summarise the current knowledge on the evolution and the pleiotropic and cell-specific non-allatostatic functions of AstA. We speculate about the core functions of AstA signalling, and derive open questions and challengesfor future research on AstA and invertebrate neuropeptides in general. KW - neuropeptide signalling KW - feeding KW - intestinal control KW - sleep/activity KW - kisspeptin/galanin/spexin signalling KW - metabolism and growth KW - learning KW - cardioactive factor Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-278749 SN - 1664-042X VL - 13 ER -