Olfactory neural circuits generate tens of thousands of distinct perceptions and influence innate behaviors, such as feeding, and in many mammals, pheromone responses such as fighting and mating. Mammals have two principal olfactory tissues: the main olfactory epithelium and the vomeronasal organ, each of which contains large families of dedicated sensory receptors and activates distinct neuronal circuits. We recently identified two non-canonical families of mammalian chemosensory receptors that are distinct from previously described odorant and vomeronasal receptors. In this proposal, we aim to understand the evolution, cellular organization, and chemoreceptive fields of these novel sensory receptors, to provide additional insight into the molecular mechanisms that underlie olfaction in mammals.
Olfaction is a valuable model system to study general functions of the human brain that are not well understood, including perception and behavior. Furthermore, neural circuit dysfunction underlies a range of cognitive and emotional disorders, so principles that emerge from studying sensory circuit function will potentially have a broad impact on human health.
|Liberles, Stephen D (2014) Mammalian pheromones. Annu Rev Physiol 76:151-75|
|Li, Qian; Korzan, Wayne J; Ferrero, David M et al. (2013) Synchronous evolution of an odor biosynthesis pathway and behavioral response. Curr Biol 23:11-20|
|Ferrero, David M; Moeller, Lisa M; Osakada, Takuya et al. (2013) A juvenile mouse pheromone inhibits sexual behaviour through the vomeronasal system. Nature 502:368-71|
|Ferrero, David M; Wacker, Daniel; Roque, Miguel A et al. (2012) Agonists for 13 trace amine-associated receptors provide insight into the molecular basis of odor selectivity. ACS Chem Biol 7:1184-9|
|Ferrero, David M; Lemon, Jamie K; Fluegge, Daniela et al. (2011) Detection and avoidance of a carnivore odor by prey. Proc Natl Acad Sci U S A 108:11235-40|